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Journal articles on the topic 'RC and masonry'

Author: Grafiati

Published: 1 April 2023

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1

Han, Sang Whan, and Chang Seok Lee. "Cyclic behavior of lightly reinforced concrete moment frames with partial- and full-height masonry walls." Earthquake Spectra 36, no. 2 (2020): 599–628. http://dx.doi.org/10.1177/8755293019899960.

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Existing lightly reinforced concrete (RC) moment frames are vulnerable to earthquakes. The seismic behavior of these frames could be affected by the presence of masonry infill walls. The objective of this study was to investigate the seismic behavior of gravity-designed RC frames having partial- and full-height masonry infill walls. For this purpose, experimental and numerical studies were conducted. Three one-story and one-bay gravity-designed RC moment frames with and without partial- and full-height masonry infill walls were made and tested under cyclic lateral loads. Numerical models for R

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2

Lin, Kun, Yuri Z. Totoev, and Hong Jun Liu. "In-Plane Cyclic Test on Framed Dry-Stack Masonry Panel." Advanced Materials Research 163-167 (December 2010): 3899–903. http://dx.doi.org/10.4028/www.scientific.net/amr.163-167.3899.

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A new masonry system has been developed to improve the seismic behaviour of RC frame with masonry panels. In this system dry-stack masonry panels are built with masonry units capable of sliding in-plane of a panel. These masonry panels have reduced in-plane stiffness but increased frictional energy dissipation capacity compared with the traditional masonry panels. Under seismic or wind loads these panels do not detrimentally interfere with natural RC frame response but rather positively contribute to it mainly by increasing dumping. A cyclic test has been performed to evaluate the behaviour of

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3

Filippou, Christiana A., Nicholas C. Kyriakides, and Christis Z. Chrysostomou. "Numerical Modeling of Masonry-infilled RC Frame." Open Construction & Building Technology Journal 13, no. 1 (2019): 135–48. http://dx.doi.org/10.2174/1874836801913010135.

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Background: The behavior of masonry-infilled Reinforced Concrete (RC) frame structures during an earthquake, has attracted the attention of structural engineers since the 1950s. Experimental and numerical studies have been carried out to investigate the behavior of masonry-infilled RC frame under in-plane loading. Objective: This paper presents a numerical model of the behavior existing masonry-infilled RC frame that was studied experimentally at the University of Patra. The objective of the present study is to identify suitable numerical constitutive models for each component of the structura

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Beyer, Katrin, and Alessandro Dazio. "Quasi-Static Monotonic and Cyclic Tests on Composite Spandrels." Earthquake Spectra 28, no. 3 (2012): 885–906. http://dx.doi.org/10.1193/1.4000058.

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In modern unreinforced masonry (URM) walls, the vertical piers are connected at the story levels by reinforced concrete (RC) ring beams—also known as bond beams—or RC slabs. Particularly, in the outer walls, the spandrel element also includes a masonry spandrel on top of the RC beam or slab (“composite” spandrel). Numerical simulations have shown that spandrels significantly influence the global behavior of the URM building when subjected to seismic loading. Despite their importance, experimental data on the cyclic behavior of composite spandrels were lacking. This paper presents the results o

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Bose, Supratik, and Durgesh C. Rai. "Lateral Load Behavior of an Open-Ground-Story RC Building with AAC Infills in Upper Stories." Earthquake Spectra 32, no. 3 (2016): 1653–74. http://dx.doi.org/10.1193/121413eqs295m.

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Autoclaved aerated concrete (AAC) masonry infills in upper stories can be beneficial for improving the seismic response of open-ground-story (OGS), reinforced concrete (RC)–frame buildings. Two reduced 1:2.5-scale models of single-story, single-bay RC frames with and without AAC infill masonry were tested for resistance properties and hysteretic behavior. Low strength and stiffness of AAC masonry, about half of the conventional brick masonry, led to improved load sharing between the infill and the frame, which helped an early development of frame yield mechanism for enhanced energy dissipation

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Pudjisuryadi, Pamuda, V. S. Prayogo, S. I. Oetomo, and Benjamin Lumantarna. "Seismic Performance of a Three-Story Reinforced Concrete Building with Masonry Infill Walls and Friction Base Support." Civil Engineering Dimension 23, no. 1 (2021): 35–43. http://dx.doi.org/10.9744/ced.23.1.35-43.

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The stiffness of masonry infill walls is commonly neglected in design practice of Reinforced Concrete (RC) structures. In fact, the stiffness of masonry infill wall may significantly influence seismic performance and dynamic behavior of RC buildings. In this research, influence of masonry infill walls to the structural performance of a three-story RC frame is investigated. In addition, possible application of friction-based support is also studied. Full 3D non-linear time history analysis is conducted to observe behavior of the structure under two-directional ground motion. In the analysis, an

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7

Yang, Youfa, Feihu Li, and Feiyu Wang. "Analysis of the Seismic Performance of a Masonry Structure with an RC Frame on the First Story with a Concrete-Filled Steel Tubular Damper." Applied Sciences 13, no. 4 (2023): 2408. http://dx.doi.org/10.3390/app13042408.

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The concrete shear walls of masonry structures with an RC frame on the first story are low-rise shear walls with a height–width ratio of less than 1. The strength, stiffness, and ductility of these low-rise shear walls are not matched, resulting in poor seismic performance. Based on the idea of the passive control theory and multi-seismic defensive lines, the scheme of a masonry structure with an RC frame on the first story with a concrete-filled steel tubular (CFST) damper is proposed in this paper. To explore the seismic mitigation effect of a CFST damper applied to a masonry structure with

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8

Zhang, Yong Qun, and Tao Wang. "Numerical Simulation of Masonry Walls Retrofitted by Prefabricated Reinforced Concrete Panels." Applied Mechanics and Materials 351-352 (August 2013): 1514–18. http://dx.doi.org/10.4028/www.scientific.net/amm.351-352.1514.

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Assembly technology using prefabricated reinforced concrete (RC) members can effectively improve the seismic performance of existing masonry buildings. In this study, an existing masonry wall is enhanced by two pieces of prefabricated RC panels bonded on both surfaces of the wall. In order to guarantee the co-action between RC panels and the masonry wall, three techniques are employed, specifically, RC dowelling keys, grouting agent, and post-cast concrete bands. To investigate the interaction and force transmission between the two components, this study builds sophisticated finite element mod

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9

Mucedero, Gianrocco, Daniele Perrone, Emanuele Brunesi, and Ricardo Monteiro. "Numerical Modelling and Validation of the Response of Masonry Infilled RC Frames Using Experimental Testing Results." Buildings 10, no. 10 (2020): 182. http://dx.doi.org/10.3390/buildings10100182.

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Reinforced concrete (RC) frame buildings with masonry infills represent one of the most common structural typologies worldwide. Although, in the past, masonry infills were frequently considered as non-structural elements and their interaction with the structure was neglected, earthquakes occurring over the last decades have demonstrated the important role of these elements in the seismic response of all RC-infilled building typologies. In this regard, the selection of the most suitable numerical modelling approaches to reproduce the hysteretic response of the masonry infills—and their interact

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Liu, Chunhui, Bo Liu, Xiaomin Wang, Jingchang Kong, and Yuan Gao. "Seismic Performance Target and Fragility of Masonry Infilled RC Frames under In-Plane Loading." Buildings 12, no. 8 (2022): 1175. http://dx.doi.org/10.3390/buildings12081175.

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Masonry infilled RC frames are one of the most common structural forms, the damage of which, in earthquake events, usually cause serious losses. The determination of the seismic performance target is the key foundation of performance-based seismic evaluation and design for masonry infilled RC frames. In this paper, an extensive database of experimental tests on infilled RC frames loaded in an in-plane direction is collated. According to the crack propagation and elastic-plastic characteristics of infilled RC frames, the damage process is divided into four stages, and then the criteria of the d

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Maidiawati, Jafril Tanjung, Yulia Hayatfi, and Hamdeni Medriosa. "Behaviour of Reinforced Concrete Frames with Central Opening Masonry Infill under Lateral Reversed Cyclic Loading." MATEC Web of Conferences 258 (2019): 05009. http://dx.doi.org/10.1051/matecconf/201925805009.

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This paper will describe the seismic behaviour of masonry infilled RC frame with a central opening structure under reversed cyclic lateral loading. To achieve the purpose of this study, four 1/4-scale single story and single bay RC frame specimens were tested, i.e. one bare frame, one clay brick masonry infilled RC frame without opening and two clay brick masonry infills with a central opening in infills. The ratios of opening size to panel area were 25% and 40%. Through reversed cyclic lateral loading tests, the seismic performance of RC frames with a central opening brick masonry infills was

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Filippou, Christiana A., Nicholas C. Kyriakides, and Christis Z. Chrysostomou. "Numerical Modelling and Simulation of the In-Plane Response of a Three-Storey Masonry-Infilled RC Frame Retrofitted with TRM." Advances in Civil Engineering 2020 (June 29, 2020): 1–19. http://dx.doi.org/10.1155/2020/6279049.

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A numerical study was conducted to investigate the in-plane behavior of a masonry-infilled reinforced concrete (RC) frame retrofitted with textile-reinforced mortar (TRM). A two-dimensional finite element model was developed using DIANA finite element analysis (FEA) software to simulate the 2 : 3 scaled three-storey masonry-infilled RC frame retrofitted with TRM that was studied experimentally in the past. The three-storey structure used in the test was with a nonseismic design and detailing, and was subjected to in-plane displacement-control cyclic loading. The current study evaluates the cap

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Zhang, Jia Chao, Lei Ming Zhang, and Xi La Liu. "A Beam-and-Column Based Macro Model for Masonry Infill Walls in RC Frames under Cyclic Loading." Advanced Materials Research 255-260 (May 2011): 193–97. http://dx.doi.org/10.4028/www.scientific.net/amr.255-260.193.

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Reinforced concrete (RC) frame with masonry infill walls is a very common structural system in low and medium rise buildings. The infill walls are usually considered as non-structural components in the design or assessment of buildings. However, many damages in earthquakes have shown that the infill walls can significantly change the structural response to seismic action. Consequently the evaluation of the seismic performance of RC frame with masonry infill walls becomes very important, and also turns to be a major challenge for structure engineers. In this paper a beam-and-column (BAC) macro

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14

Shendkar, Mangeshkumar R., Denise-Penelope N. Kontoni, Sasankasekhar Mandal, Pabitra Ranjan Maiti, and Dipendra Gautam. "Effect of Lintel Beam on Seismic Response of Reinforced Concrete Buildings with Semi-Interlocked and Unreinforced Brick Masonry Infills." Infrastructures 6, no. 1 (2021): 6. http://dx.doi.org/10.3390/infrastructures6010006.

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The primary focus of this study is to evaluate the nonlinear response of reinforced concrete (RC) frames with two types of brick infills viz., unreinforced brick masonry infill (URM) and semi-interlocked brick masonry infill (SIM) together with lintel beams, subjected to seismic loads. The seismic response is quantified in terms of response reduction factor and base shear. Infill walls are modeled using double strut nonlinear cyclic element. Nonlinear static adaptive pushover analysis is performed in the finite element program SeismoStruct. The response reduction factor (R) is computed from ad

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15

Kong, Jing Chang, Qing Guo Zhang, and Chun Hui Liu. "Finite Element Modelling for Lateral Behaviour of Infilled RC Frames with Openings." Applied Mechanics and Materials 578-579 (July 2014): 497–500. http://dx.doi.org/10.4028/www.scientific.net/amm.578-579.497.

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Masonry infills are commonly used in reinforced concrete (RC) frame structures. In this paper a separate finite element modelling method is proposed and used to study the lateral behaviour of single-storey one-bay masonry infilled frames with openings under monotonic horizontal loading. The interface friction model and the surface-based cohesive model are combined to simulate masonry interface and the interface between masonry wall and RC frame. Damage plastic model of material property is adapted to capture the brittle behaviour of concrete and bricks. Appropriate experimental data available

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Rafid Ahmed, Ammar, and Alaa H. Al-Zuhairi. "Finite Element Analysis for The Response of URM Walls Supporting RC Slab." International Journal of Engineering & Technology 7, no. 4.20 (2018): 259. http://dx.doi.org/10.14419/ijet.v7i4.20.25936.

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The aim for this research is to investigate the effect of inclusion of crack incidence into the 2D numerical model of the masonry units and bonding mortar on the behavior of unreinforced masonry walls supporting a loaded reinforced concrete slab. The finite element method was implemented for the modeling and analysis of unreinforced masonry walls. In this paper, ABAQUS, FE software with implicit solver was used to model and analyze unreinforced masonry walls which are subjected to a vertical load. Detailed Micro Modeling technique was used to model the masonry units, mortar and unit-mortar int

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17

Chen, Wei, Fang Bo Wu, Xu Hong Zhou, and Hai Lin Huang. "Experimental Investigation of Seismic Behavior of a New Type Masonry Walls." Advanced Materials Research 639-640 (January 2013): 732–39. http://dx.doi.org/10.4028/www.scientific.net/amr.639-640.732.

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Conventional concrete hollow blocks have vertical single or multiple holes and they have been extensively used in masonry structures and as infill walls in reinforced concrete frame structures. However, most masonry walls using conventional concrete hollow blocks have the shortcoming of poor seismic resistance. A new type concrete hollow block with horizontal-holes has been developed and it could significantly improve the seismic resistance of a masonry wall as well as simplify the construction processes. The new hollow blocks are very easy to build a wall in a construction site and, in partic

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18

Li, Jing, Dong Wang, Yi Ouyang, and Zhao Rong Hou. "Anti-Seismic Behavior of Hybrid Masonry – RC Structure." Key Engineering Materials 629-630 (October 2014): 537–43. http://dx.doi.org/10.4028/www.scientific.net/kem.629-630.537.

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According to current engineering practice, Confined Masonry (CM) buildings are weak in earthquake resistance and difficult in post-quake restoration. A new form of structure, i.e. Hybrid Masonry – Reinforced Concrete Structure (HMRCS), is investigated. By slightly increasing the sizes and reinforcement ratios of the RC members, i.e. beams and columns, which normally only act as confinement in a CM structure, now play an essential role in resisting the gravity load in HMRCS, while the masonry wall mainly resists the lateral earthquake load. To investigate the seismic-resistant behavior, pseudo-

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19

Lei, Zhen, Jun Tong Qu, and Yong Wang. "Strengthening of RC-Brick Masonry Walls with Opening Using Basalt Fiber Reinforced Polymer." Advanced Materials Research 1021 (August 2014): 63–67. http://dx.doi.org/10.4028/www.scientific.net/amr.1021.63.

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FRP strengthening technique provides a promising alternative for masonry structures. This paper presents research results of quasi-static tests investigating the in-plane mechanical behavior of RC-brick masonry walls with opening strengthened with basalt fiber reinforced polymer (BFRP). Two half scale RC-brick walls were constructed, one without any strengthening scheme served as the reference specimen, another one was directly strengthened with BFRP in mixed strengthening configuration. All specimens were tested under low frequency cyclic loading. BFRP can effectively improve the lateral stre

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20

Messaoudi, Abdelghaffar, Rachid Chebili, Hossameldeen Mohamed, and Hugo Rodrigues. "Influence of Masonry Infill Wall Position and Openings in the Seismic Response of Reinforced Concrete Frames." Applied Sciences 12, no. 19 (2022): 9477. http://dx.doi.org/10.3390/app12199477.

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It is now widely recognized that the masonry infill frame used in reinforced concrete structures (RC) greatly enhances both the rigidity and strength of the surrounding frame. The lateral loading behavior of this RC frame is different from the frame without infill, although the structural contribution of infill walls is discarded in many countries, including Algeria. This paper aims to focus on the effect of openings and the effect of changing the distribution of masonry panels on the global behavior of buildings. For this, a pushover analysis is carried out to evaluate the seismic performance

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21

Liu, Bo, Chunhui Liu, Xiaomin Wang, Jingchang Kong, and Zhiwang Chang. "Numerical Modeling Technique of Damage Behavior of MaSonry-Infilled RC Frames." Applied Sciences 13, no. 3 (2023): 1521. http://dx.doi.org/10.3390/app13031521.

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The damage pattern of masonry-infilled reinforced concrete (RC) frame structures in earthquake events is complicated, and understanding the detailed failure behavior of these structures and modeling it accurately has been a challenging task. In this paper, the extended finite element method (XFEM) is introduced to reproduce arbitrary cracks initiating and propagating in concrete frame and masonry units, combined with interface elements to model various behaviors of masonry-infilled RC frames. Within the finite element analysis program FEAP, a user element subroutine is adopted for the incorpor

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Shendkar, Mangeshkumar R., Denise-Penelope N. Kontoni, Sasankasekhar Mandal, Pabitra Ranjan Maiti, and Omid Tavasoli. "Seismic Evaluation and Retrofit of Reinforced Concrete Buildings with Masonry Infills Based on Material Strain Limit Approach." Shock and Vibration 2021 (April 5, 2021): 1–15. http://dx.doi.org/10.1155/2021/5536409.

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The seismic evaluation and retrofit of reinforced concrete (RC) structures considering masonry infills is the correct methodology because the infill walls are an essential part of RC structures and increase the stiffness and strength of structures in seismically active areas. A three-dimensional four-storey building with masonry infills has been analyzed with nonlinear static adaptive pushover analysis by using the SeismoStruct software. Two models have been considered in this study: the first model is a full RC-infilled frame and the second model is an open ground storey RC-infilled frame. Th

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Alwashali, Hamood, Md Shafiul Islam, Debasish Sen, Jonathan Monical, and Masaki Maeda. "SEISMIC CAPACITY OF RC FRAME BUILDINGS WITH MASONRY INFILL DAMAGED BY PAST EARTHQUAKES." Bulletin of the New Zealand Society for Earthquake Engineering 53, no. 1 (2020): 13–21. http://dx.doi.org/10.5459/bnzsee.53.1.13-21.

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Many of the buildings which experienced damage in recent earthquakes such as the 2015 Nepal Earthquake were reinforced concrete (RC) frame buildings with unreinforced masonry infill walls. This study proposes a simplified procedure to estimate the in-plane seismic capacity of masonry infilled RC frame buildings based on concepts of the Japanese seismic evaluation standard (JBDPA, [1]). The correlation of seismic capacity and observed damage obtained using a database of 370 existing RC frame buildings with masonry infill that experienced earthquakes in Taiwan, Ecuador and Nepal is investigated.

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Mehrabi, Armin B., P. Benson Shing, Michael P. Schuller, and James L. Noland. "Experimental Evaluation of Masonry-Infilled RC Frames." Journal of Structural Engineering 122, no. 3 (1996): 228–37. http://dx.doi.org/10.1061/(asce)0733-9445(1996)122:3(228).

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Dymiotis, Christiana, Andreas J. Kappos, and Marios K. Chryssanthopoulos. "Seismic Reliability of Masonry-Infilled RC Frames." Journal of Structural Engineering 127, no. 3 (2001): 296–305. http://dx.doi.org/10.1061/(asce)0733-9445(2001)127:3(296).

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Mehdipour, Zabih, Elisa Poletti, Jorge M. Branco, and Paulo B. Lourenço. "Numerical Analysis of Masonry-Infilled RC-CLT Panel Connections." Buildings 12, no. 11 (2022): 2009. http://dx.doi.org/10.3390/buildings12112009.

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CLT panels have been investigated for reinforcement of existing masonry-infilled RC framed buildings through the increase of the overall lateral stiffness of the structure, thus reducing the story drift demand. The contribution of CLT panels depends on the connection to the RC frame elements. This paper evaluates the role of connectors by which CLT is attached to RC frames for capacity, ductility, and energy dissipation of the structure and its elements separately using different kinds of RC-CLT connections, and ultimately finds and compares the optimum number and arrangement of connectors. Th

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Arteta, Carlos A., Julian Carrillo, Jorge Archbold, et al. "Response of Mid-Rise Reinforced Concrete Frame Buildings to the 2017 Puebla Earthquake." Earthquake Spectra 35, no. 4 (2019): 1763–93. http://dx.doi.org/10.1193/061218eqs144m.

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The response of mid-rise reinforced concrete (RC) buildings in Mexico City after the 2017 Puebla Earthquake is assessed through combined field and computational investigation. The Mw 7.1 earthquake damaged more than 500 buildings where most of them are classified as mid-rise RC frames with infill walls. A multinational team from Colombia, Mexico, and the United States was rapidly deployed within a week of the occurrence of the event to investigate the structural and nonstructural damage levels of over 60 RC buildings with 2–12 stories. The results of the study confirmed that older mid-rise str

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Xu, Qinghu, Xuezhi Zhen, Yu Zhang, Mengjun Han, and Wenkang Zhang. "Numerical Simulation Study of Progressive Collapse of Reinforced Concrete Frames with Masonry Infill Walls under Blast Loading." Modelling and Simulation in Engineering 2022 (November 11, 2022): 1–16. http://dx.doi.org/10.1155/2022/1781415.

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The influence of masonry infill walls on the progressive collapse performance of reinforced concrete (RC) frame structures was investigated in this paper, using a nonlinear dynamic analysis approach. Based on ANSYS/LS-DYNA finite element software, two finite element models of RC frame structures with and without masonry infilled walls were established. Then, the collapse modes of the two RC frame structure models were analyzed for different scaled distance blast loads, different locations of column damage, and different span numbers. The results show that with the increase of explosive amount,

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Penava, Davorin, Daniel Alejandro Arciniega Larrea, Filip Anić, and Lars Abrahamczyk. "Architectural and engineering design criteria for earthquake resistant masonry infilled RC frames containing openings." Environmental engineering 7, no. 1 (2020): 11–17. http://dx.doi.org/10.37023/ee.7.1.2.

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In earthquake resistant design of RC frame structures, the definition of masonry infilled frame is often split between reinforced concrete and the masonry structures. However, it is known that the frame elements and the masonry wall work as a coupled system. Additionally, a dedicate chapter for the definitions of openings size, quantity and position is missing. The definition of a full, partial or non-masonry infilled frame with opening is not establish in engineering and architectural codes; rather, recommendations are given. A competent masonry infilled frame with openings would mean to corr

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Manos, George C., Konstantinos Katakalos, Vassilios Soulis, and Lazaros Melidis. "Earthquake Retrofitting of “Soft-Story” RC Frame Structures with RC Infills." Applied Sciences 12, no. 22 (2022): 11597. http://dx.doi.org/10.3390/app122211597.

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Multi-story, old reinforced concrete (RC) structures with a “soft-story” on the ground floor, sustain considerable damage to the soft story during earthquakes due to the presence of masonry infills in the upper stories. Aspects of such masonry infill–RC frame interaction are briefly discussed and a particular retrofitting scheme for the soft story is studied. It consists of RC infills, added within the bays of the ground floor frames and combined with RC jacketing of the surrounding frame, aiming to avert such soft-story deficiency. The impact of such a retrofit is studied through the measured

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Nanda, Radhikesh Prasad, and Subhrasmita Majumder. "Pushover Analysis of Base Isolated RC Frame Buildings With Masonry Infills." International Journal of Geotechnical Earthquake Engineering 10, no. 2 (2019): 18–31. http://dx.doi.org/10.4018/ijgee.2019070102.

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In the present article, the performance of base-isolated infilled frames is studied analytically. The seismic performances of four RC buildings, namely RC bare frame without isolator, RC bare frame with isolator, RC infilled frame without isolator, and RC infilled frame with isolator are analysed. The results show a decrease in base shear value and increase in time period due to base isolated buildings, while these parameters are reversely affected due to infills. The decrease in story drift for the base isolated buildings is in phase while considering infill. Also, it can be inferred that pla

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., Priyanka, Shobha Ram, and Alok Verma. "Performance of Infill Framed Structures During Earthquake: A State-of-the- Art Review." INTERNATIONAL JOURNAL OF ADVANCED PRODUCTION AND INDUSTRIAL ENGINEERING 5, no. 3 (2020): 66–70. http://dx.doi.org/10.35121/ijapie202007350.

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Masonry infill walls are widely known to increase the lateral stiffness of the structure and for this reason, it is accepted all over the world. This paper presents a review work on the performance of infill framed structures that were damaged during several earthquakes. A study of the behavior of damaged buildings during different earthquakes in the world has been carried out. The mentioned earthquakes substantially caused damage to the RC buildings. The RC buildings were damaged primarily because of improper design and reinforcement detailing at the design phase and improper workmanship and

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Wang, Tao, Xi Chen, Wen Feng Li, and Qi Song Miao. "Seismic Performance of Masonry Buildings Retrofitted by Pre-Cast RC Panels." Applied Mechanics and Materials 166-169 (May 2012): 1811–17. http://dx.doi.org/10.4028/www.scientific.net/amm.166-169.1811.

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Proposed in this study is a retrofitting technology that can be applied on exiting masonry buildings. It employs pre-cast reinforced concrete panels to confine existing masonry structure. The pre-cast members constitute a frame which encomprises the existing building. The confinement effectively improves the ductility, strength, and stiffenss of masonry structures. Moreover, the reinforced concrete panels are fabricated in factory, significantly reduces the situ construction and construction period. To demonstrate the design theory, construction organization, and seismic performance of the ret

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Shendkar, Mangeshkumar R., Denise-Penelope N. Kontoni, Ercan Işık, Sasankasekhar Mandal, Pabitra Ranjan Maiti, and Ehsan Harirchian. "Influence of Masonry Infill on Seismic Design Factors of Reinforced-Concrete Buildings." Shock and Vibration 2022 (February 27, 2022): 1–15. http://dx.doi.org/10.1155/2022/5521162.

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Infill walls are the most common separator panels in typical reinforced-concrete (RC) frame structures. It is crucial to investigate the influence of the infill walls on the earthquake behavior of RC frames. The load resistance of infill materials was often not taken into account in the designing phase, whereas the infill walls have significant contributions to the structural behavior under lateral and vertical loadings. A three-dimensional 4-story RC building is designed, and in order to make a realistic model, different infill walls configurations were taken into account with the openings in

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Ahmad, M. E., N. Ahmad, S. Pervez, et al. "Seismic Performance Evaluation of Modern Bare and Masonry-Infilled RC SMRF Structures." Advances in Civil Engineering 2019 (October 30, 2019): 1–15. http://dx.doi.org/10.1155/2019/6572465.

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Improper execution of modern code-designed structures in many developing countries have resulted in significant deficient building stock; low strength of concrete, reduced reinforcement, inappropriate detailing of beam-column members, and lack of lateral ties in joint panels. Observations based on earthquake-induced damages and experimental studies conducted on such buildings have revealed significant vulnerability of beam-column joints of bare moment-resisting frame structures. Shake table tests were conducted on selected three 1 : 4 reduced-scale three-story reinforced concrete (RC) moment-r

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Mucedero, Gianrocco, Daniele Perrone, and Ricardo Monteiro. "Infill Variability and Modelling Uncertainty Implications on the Seismic Loss Assessment of an Existing RC Italian School Building." Applied Sciences 12, no. 23 (2022): 12002. http://dx.doi.org/10.3390/app122312002.

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Past earthquake evidence has shown the high vulnerability of Italian school buildings, given by the extensive damage observed to structural and non-structural elements. Such vulnerability demonstrates the need to undertake a seismic risk assessment and reduction strategies for critical facilities and allocation of national funds for retrofit interventions to those regions where seismic risk is higher. To do so, Expected Annual Losses (EAL) are evermore considered one of the main seismic risk metrics, which can, however, be largely affected by the epistemic uncertainty that typically characteri

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Cheng, Shao-Ge, Yi-Xiu Zhu, and Wei-Ping Zhang. "Seismic performance of RC frames strengthened by RC infill walls." Advances in Structural Engineering 24, no. 10 (2021): 2267–81. http://dx.doi.org/10.1177/1369433221997726.

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This study presents the shake-table tests of a 1/5-scaled RC frame retrofitted with RC infill walls. The intensity of input ground motions increased gradually to comprehensively evaluate the structural seismic behavior. We performed a comparison of the results from the RC frame with masonry walls and that with RC walls. The results showed that the presence of RC infills effectively improved the lateral structural stiffness and loading capacity of the frames and reduced their damage and story drift. RC walls acted as the first seismic line of defense, and their failure was dominated by bending

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Gondaliya, K. M., T. N. Palsanawala, V. Bhaiya, S. A. Vasanwala, and A. K. Desai. "Seismic Vulnerability of Code Compliant RC Frame Building with Unreinforced Masonry Infill Walls." Proceedings of the 12th Structural Engineering Convention, SEC 2022: Themes 1-2 1, no. 1 (2022): 925–29. http://dx.doi.org/10.38208/acp.v1.603.

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Unreinforced masonry (URM) infill walls in Reinforced concrete (RC) buildings are normally designed as non-structural elements. However, in the past, the post-earthquake response of the RC frame building showed that URM infill walls increase the strength and stiffness of the RC frame buildings. Further, it is also observed that URM helped to prevent the disastrous destruction by acting as a structural member in RC frame. In the present study, the performance assessment of a four-storey URM infill RC frame with different infill configurations, namely bare and Open Ground Storey (OGS) is done us

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Perrone, Daniele, Marianovella Leone, and Maria Antonietta Aiello. "Non-linear behaviour of masonry infilled RC frames: Influence of masonry mechanical properties." Engineering Structures 150 (November 2017): 875–91. http://dx.doi.org/10.1016/j.engstruct.2017.08.001.

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Mehrabi, Armin B., and P. Benson Shing. "Finite Element Modeling of Masonry-Infilled RC Frames." Journal of Structural Engineering 123, no. 5 (1997): 604–13. http://dx.doi.org/10.1061/(asce)0733-9445(1997)123:5(604).

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Baloević, G., J. Radnić, and A. Harapin. "Numerical dynamic tests of masonry-infilled RC frames." Engineering Structures 50 (May 2013): 43–55. http://dx.doi.org/10.1016/j.engstruct.2012.11.034.

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Jagadeesan, P., N. Sudharsan, S. M. Subash, et al. "Study on Performance of Infilled Wall in an RC-Framed Structure Using a Reinforcing Band." Advances in Materials Science and Engineering 2022 (September 6, 2022): 1–8. http://dx.doi.org/10.1155/2022/8643959.

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Infilled wall is a primary structure which is used in a multistorey RC-framed structure. It is not designed like structural elements, but it is subjected to structural load and response as a heavily damaged element into the building. The main problem of an infilled wall is not actively utilizing in the framed structure and it is not interacted with frame elements. The objective of research is to utilize the infilled wall in the RC-framed structure by improving its performance of behavior. Here, two different types of brick masonry like Autoclaved concrete and clay brick masonry were used as th

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Gong, Xiao Ying, and Jun Wu Dai. "Nonlinear Seismic Analysis of Masonry Infilled RC Frame Structures." Applied Mechanics and Materials 117-119 (October 2011): 288–94. http://dx.doi.org/10.4028/www.scientific.net/amm.117-119.288.

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Many RC frame structures were severely damaged or collapsed in some layer. The phenomenon was significantly different from the expected failure mode in seismic design code. This paper comprehensively sums up the earthquake characteristics of masonry infilled RC frame structures. Based on an investigation of a masonry infilled RC frame structure damaged in the earthquake area, conduct the research on frail-layer caused by infill walls uneven decorated. On the hypothesis of keeping the main load-bearing component invariant, two models were considered, i. e. frame with floor slab, and frame with

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Mbereyaho, Leopold, Adewole Kazeem Kayode, Rachel Manishimwe, Juscare Manishimwe, and Justine Ishimwe. "Reinforced Brick Masonry in Urbanization of Rwanda Secondary Cities." Mediterranean Journal of Basic and Applied Sciences 06, no. 04 (2022): 07–19. http://dx.doi.org/10.46382/mjbas.2022.6402.

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To ensure equitable development for all the regions of Rwanda and to limit migration into and prevent congestion of Kigali, the capital city of Rwanda, the Rwandan government has embarked on the development of secondary cities. Consequently, there is the need to provide affordable and safe buildings in the proposed secondary cities. This study investigated the feasibility of using reinforced masonry bricks (RBM) for constructing buildings in the Rwandan secondary city in Muhanga District as an alternative to using reinforced concrete (RC) presently in use in the Kigali based on the availabilit

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Pradhan, Sujan, Yuebing Li, and Yasushi Sanada. "Seismic performance evaluation and risk assessment of typical reinforced concrete frame buildings with masonry infill and conventional vertical extension in Nepal." Bulletin of Earthquake Engineering 20, no. 2 (2021): 853–84. http://dx.doi.org/10.1007/s10518-021-01246-2.

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AbstractMany reinforced concrete (RC) frame buildings in Nepal were significantly damaged by the 7.8 magnitude (Mw) earthquake in Nepal on April 25, 2015. To contribute to mitigate future earthquake disasters, the current study focuses on two specific characteristics of residential RC frame buildings in the capital city of Nepal, Kathmandu: the application of brick masonry infill to exterior and partition walls, and the conventional vertical extension of building stories different from the design. Although these factors are likely to significantly affect the seismic performance, their effects

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Basdeki, Maria, Argyro Drakakaki, and Charis Apostolopoulos. "The use of approximate methods of seismic assessment of structures." MATEC Web of Conferences 188 (2018): 03010. http://dx.doi.org/10.1051/matecconf/201818803010.

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Greece is an earthquake prone area, which is also exposed to coastal environment. Most existing buildings present common characteristics, concerning quality of the materials and environmental conditions [1].The vulnerability of these structures is exteriorized under powerful seismic loads. This is because they were designed, according to older regulations, primarily to bear vertical loads and secondarily to bear horizontal loads, an indicative sign of the absence of anti-seismic design. Designing and evaluation of the seismic performance of existing structures is a really complex issue, becaus

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Brzev, Svetlana, Bishnu Pandey, Dev Kumar Maharjan, and Carlos Ventura. "Seismic Vulnerability Assessment of Low-Rise Reinforced Concrete Buildings Affected by the 2015 Gorkha, Nepal, Earthquake." Earthquake Spectra 33, no. 1_suppl (2017): 275–98. http://dx.doi.org/10.1193/120116eqs218m.

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Low-rise reinforced concrete (RC) frames with brick masonry infill walls up to five stories high have been used for housing construction in Nepal since the late 1980s. Many buildings of this type were damaged and/or collapsed in the 25 April 2015 Gorkha earthquake (M 7.8), even in areas characterized with moderate shaking intensity such as Kathmandu Valley. Due to inadequate design and/or construction of RC frame components, these buildings essentially behave like masonry shear wall structures with a shear-dominant failure mechanism. The paper presents the findings of a field survey of 98 RC b

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Zhou, Xiaojie, Xiaoyuan Kou, Quanmin Peng, and Jintao Cui. "Influence of Infill Wall Configuration on Failure Modes of RC Frames." Shock and Vibration 2018 (June 25, 2018): 1–14. http://dx.doi.org/10.1155/2018/6582817.

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An improper configuration of masonry infill walls in RC frame may lead to short column effect on the columns, which is harmful to the seismic behavior of the structure. In this study, a bare frame and two single-story, single-bay RC frames, partially infilled with masonry, were tested under cyclic loading. The failure mechanism and seismic performance of these partially infilled RC frames (with an infill height of 600 mm) with different types of connections were analysed. Based on the experiment, nonlinear finite element simulation and analysis were conducted to study the effects of the infill

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Kawan, Chandra Kiran. "Effect of stiffeners in lateral stiffness of masonry infill reinforced concrete (RC) frames." Journal of Science and Engineering 3 (December 1, 2015): 7–20. http://dx.doi.org/10.3126/jsce.v3i0.22383.

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Infilled frames are reinforced concrete frames with masonry infill. The provision of masonry walls as infill increases the lateral stiffness of frame. Unreinforced masonry infill effects the strength and stiffness of frame but being ignored for a long time. The main objective of this paper is to study the individual and combined effect of infill masonry wall, stiffeners and wooden frame in the lateral stiffness of infill reinforced concrete frame with central opening, with and without gap element consideration. From the analysis using SAP software, it is observed that with increase in openings

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Qazi, Asad Ullah, Ali Murtaza Rasool, Yasser E. Ibrahim, Asif Hameed, and Muhammad Faizan Ali. "Behavior of Scaled Infilled Masonry, Confined Masonry & Reinforced Concrete Structures under Dynamic Excitations." Buildings 12, no. 6 (2022): 774. http://dx.doi.org/10.3390/buildings12060774.

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This research investigates the nonlinear behavior of scaled infilled masonry (IFM), confined masonry (CM), and reinforced concrete (RC) structures by utilizing and validating two tests from the literature as benchmarks. The validation was based on a comparison with the pushover results of small-scaled physical tests and their numerical modeling. Numerical modeling of small-scale (1:4 and 1:3) IFM, CM, and RC models has been carried out with Finite Element Modelling (FEM) and Applied Element Modelling (AEM) techniques using SAP2000 and the Extreme Loading for Structures (ELS) software, respecti

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