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Artykuły w czasopismach na temat „Seismic forces”

Autor: Grafiati

Data publikacji: 6 września 2023

Data aktualizacji: 26 lipca 2025

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1

Olmos, Bertha A., and Jose Manuel Roesset. "Seismic forces on piles." Structure and Infrastructure Engineering 9, no. 12 (2013): 1283–98. http://dx.doi.org/10.1080/15732479.2012.688976.

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Bolotbek, T., K. M. Mirlanov, A. Y. Telin, E. S. Chukanov, and A. T. Talgatov. "SPECTRAL METHODS FOR DETERMINING THE SEISMIC FORCES OF BUILDINGS." Herald of KSUCTA, №2, Part 1, 2022, no. 2-1-2022 (April 30, 2022): 426–34. http://dx.doi.org/10.35803/1694-5298.2022.2.426-434.

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The article discusses methods for calculating seismic effects on buildings and structures along the spectral curve, creating a dynamic calculation scheme for load-bearing structural elements, inertial reactions and displacements of building structures, natural and forced vibrations of buildings under the effect of seismic forces.

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3

Cheng, Yuan Bing, Hong Wei Du, Shi Yun Zhang, and Liu Zhong Xu. "Seismic Design of R.C. Stairs in Masonry Structure." Advanced Materials Research 163-167 (December 2010): 4133–37. http://dx.doi.org/10.4028/www.scientific.net/amr.163-167.4133.

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In view of masonry structures with rigid floor slab, seismic behavior of R. C. stairs and influence of stairs on the stiffness of lateral walls of stair well was analyzed, calculation formulae of the seismic internal forces of stairs were deduced, calculation method of the seismic shear forces considering the seismic effect of stairs on main structure were given out. Analysis and comparison on engineering ensamples were carried out. The results show K-type bracing function of step slabs to main structure is evident. Considering the bracing function, shear deformation of the floor layer and she

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4

McRae, Hamish. "Seismic forces of global change." Strategy & Leadership 24, no. 6 (1996): 6–11. http://dx.doi.org/10.1108/eb054569.

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5

Jaiswal, O. R., Durgesh C. Rai, and Sudhir K. Jain. "Review of Seismic Codes on Liquid-Containing Tanks." Earthquake Spectra 23, no. 1 (2007): 239–60. http://dx.doi.org/10.1193/1.2428341.

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Liquid storage tanks generally possess lower energy-dissipating capacity than conventional buildings. During lateral seismic excitation, tanks are subjected to hydrodynamic forces. These two aspects are recognized by most seismic codes on liquid storage tanks and, accordingly, provisions specify higher seismic forces than buildings and require modeling of hydrodynamic forces in analysis. In this paper, provisions of ten seismic codes on tanks are reviewed and compared. This review has revealed that there are significant differences among these codes on design seismic forces for various types o

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6

Nidhi, Kushwah, and Sharma Rahul. "Water Tank Seismic Analysis Taking into Account the Interplay of Soil Structure in Different Zones." Journal of Water Resource Research and Development 7, no. 3 (2024): 1–9. https://doi.org/10.5281/zenodo.13335344.

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<em>This study demonstrates the importance of accounting for seismic forces in the design of underground water tanks. The analysis reveals that when seismic forces are considered, the moments in the walls along both the X and Y axes at the base exceed those in the walls of existing tanks. Although soil conditions do not significantly influence the design forces, the impact of seismic activity is evident in the increased shear forces, which necessitate the redesign of wall thickness. Additionally, considering the soil-structure interaction (SSI) effect with elastic springs at the base results i

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7

Țurcan, Vadim, Mihail Ștascov, and Evgheni Cutia. "Evaluation of seismic forces according to Eurocode 8 and SNiP II-7-81. Comparative analysis." Journal of Engineering Science 31, no. 1 (2024): 55–65. https://doi.org/10.52326/jes.utm.2024.31(1).05.

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The evaluation of seismic forces is very important for the design of all types of structures. In the present, Republic of Moldova is in a period of transition in the construction industry from the national design norms to the European design norms. The comparison provides an interesting and imperative approach in design of structures. During the design process it is very important to be aware of all the forces acting on a structure, especially the accidental forces. This paper presents a comprehensive analysis of a concrete frame structure, subjected to seismic action. A calculation is perform

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8

Karimov, Komolkhan, Bakhtiyor Mardonov, Azamat Akhmedov, and Murtoza Toirov. "Prospects for mathematical modeling in mining system development: accounting for global oscillations and seismic waves." E3S Web of Conferences 525 (2024): 05017. http://dx.doi.org/10.1051/e3sconf/202452505017.

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The article discusses the potential of mathematical modeling in understanding the impact of vibrations and seismic waves, aiming at enhancing the sustainability of systems within the mining industry. It explores the dynamic response of a tall, elastic structure with a uniform cross-section and a fixed cylindrical fluid reservoir, subject to various complex boundary conditions. The study delves into the vibrational behavior of the structure when exposed to seismic and harmonic forces, calculating frequency, vibration periods, and deriving formulas for stress, tension, deformation, bending momen

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9

Akhtar, Mohsin Aakib Shamim. "Dynamic Seismic Analysis of Multi Storey Buildings in Seismic Zone V." International Journal for Research in Applied Science and Engineering Technology 10, no. 2 (2022): 108–15. http://dx.doi.org/10.22214/ijraset.2022.40154.

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Abstract: In India, multi-storied buildings area unit sometimes created because of high value and deficiency of land. Earthquake could be a phenomenon which might generate the foremost harmful forces on structures. Buildings ought to be created safe for lives by correct style and particularisation of structural members so as to possess a ductile sort of failure. To protect such civil structures from significant structural damage, the seismic response of these structures is analyzed along with wind force calculation and forces such as support reactions and joint displacement are calculated and

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10

Achouri, Abderrahim, and Mohamed Nadir Amrane. "Effect of seismic interaction between twin tunnels on internal forces." STUDIES IN ENGINEERING AND EXACT SCIENCES 5, no. 2 (2024): e10984. https://doi.org/10.54021/seesv5n2-558.

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The objective of this paper is to investigate the effects of seismic interaction between twin adjacent tunnels on internal forces. A 2D numerical analysis was conducted, considering position, distance, and seismic components as key parameters. The results of this paper demonstrate that as the separation distance between tunnels decreases, internal forces increase, except for the normal force, which decreases. The total principal stresses around the tunnels exhibits the same behaviour. Additionally, the position of the adjacent tunnel clearly influences the internal forces, decreasing in vertic

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11

Chernov, Yury T., and Jaafar Qbaily. "Evaluation of seismic forces under modified structural schemes in the process of vibrations." Structural Mechanics of Engineering Constructions and Buildings 17, no. 4 (2021): 391–403. http://dx.doi.org/10.22363/1815-5235-2021-17-4-391-403.

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The aim of the work - development of one of the possible methods for seismic analysis that considers the inelastic behavior of structures under seismic loads. This requires the development of seismic analysis methods that take into account the change (decrease) in the bearing capacity or the destruction of individual elements until the final loss of the bearing capacity of the structure. Methods. The dependences and algorithms include determining seismic forces using the method of normal forms, which until now is the main one in solving problems of the seismic resistance theory in seismic regi

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12

Rezaeian, Hooman, George Charles Clifton, and James B. P. Lim. "Compatibility Forces in Floor Diaphragms of Steel Braced Multi-Story Buildings." Key Engineering Materials 763 (February 2018): 310–19. http://dx.doi.org/10.4028/www.scientific.net/kem.763.310.

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Floors have a key role in the seismic behaviour of structures, especially in multi-story buildings. The in-plane behaviour of a floor system influences the seismic response of the structure significantly and affects the distribution of lateral forces between seismic resisting systems and over the height of the structure. In buildings where the seismic resisting systems are in the same location in plan on each floor over the height of the building, inertial and displacement compatibility shear forces are the principal shear forces generated at the interface between the floor system and the seis

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13

Yan, Xian Li, Qing Ning Li, Chang Gao, and Li Ying Wang. "Research on Dynamic Performance of Concrete-Filled Steel Tubular Trussed Arch Bridge under Earthquake." Advanced Materials Research 368-373 (October 2011): 1222–26. http://dx.doi.org/10.4028/www.scientific.net/amr.368-373.1222.

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Taking a double span- swallows-type CFST (concrete-filled steel tubular) trussed arch bridge as an engineering example; a spatial finite element analysis model is established to calculate its dynamic characteristic. The seismic responses in different earthquake input directions are calculated based on the elastic dynamic time history method. Results show that: the out-plane stability of the bridge is weaker than that of the in-plane; the torsion resistance ability of the bridge deck is smaller than that of the arch ribs; the axial force-Fx, shear force-Fz and bending moment-My of the bridge ar

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14

Sagar, Sunil Kumar. "Seismic Upgradation of Building Using Shear Wall and Bracing." International Journal for Research in Applied Science and Engineering Technology 12, no. 7 (2024): 1038–45. http://dx.doi.org/10.22214/ijraset.2024.63711.

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Abstract: The seismic assessment prepare comprises of exploring in case the structure meets the defined target structural performance levels. The main goal during earthquakes is to assure to people is minimized and beyond that to satisfy postearthquake performance level for defined range of seismic hazards. Rehabilitation prepares points to progress seismic execution and adjust the lacks by increasing quality, firmness or distortion capacity and making strides associations. Hence, a proposed retrofit execution can be said to be fruitful in the event that it comes about an increment in strength

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15

Heidebrecht, A. C. "Insights and challenges associated with determining seismic design forces in a loading code." Bulletin of the New Zealand Society for Earthquake Engineering 28, no. 3 (1995): 224–46. http://dx.doi.org/10.5459/bnzsee.28.3.224-246.

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    This paper presents and discusses a number of important topics which affect the determination of seismic design forces in a loading code. These range broadly from seismic hazard through to design philosophy and include the following aspects: influence of uncertainty in determining seismic hazard, seismic hazard parameters, site effects, probability level of design ground motions, role of deformations in seismic design, performance expectations and level of protection. The discussion makes frequent reference to the seismic provisions of both the National Building Cod

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16

Ning, Hao, Xiao Yin Lv, and Yi Jun Wang. "Research on Longitudinal Seismic Calculation Theory of Single-Story Factory Building." Applied Mechanics and Materials 166-169 (May 2012): 2471–77. http://dx.doi.org/10.4028/www.scientific.net/amm.166-169.2471.

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Regarding the distribution modes of longitudinal horizontal seismic forces of single-story factory building with no purlin concrete roof, there are conflicts between Sections 9.8.1 and 5.2.6 in the Seismic Design of Buildings GB50011-2010[1]. We suggested distributing the longitudinal seismic forces according to the proportion of the gravity loads on the subordinate areas of the lateral force components. We recommended replacing clause 1 of section 9.1.8 with “Don’t consider the effective stiffness of the enclosure walls or the partition walls”. Then for the example in Single-story Factory bui

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17

Chin, C. Y., Claudia Kayser, and Michael Pender. "Seismic earth forces against embedded retaining walls." Bulletin of the New Zealand Society for Earthquake Engineering 49, no. 2 (2016): 200–210. http://dx.doi.org/10.5459/bnzsee.49.2.200-210.

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This paper provides results from carrying out two-dimensional dynamic finite element analyses to determine the applicability of simple pseudo-static analyses for assessing seismic earth forces acting on embedded cantilever and propped retaining walls appropriate for New Zealand. In particular, this study seeks to determine if the free-field Peak Ground Acceleration (PGAff) commonly used in these pseudo-static analyses can be optimized. The dynamic finite element analyses considered embedded cantilever and propped walls in shallow (Class C) and deep (Class D) soils (NZS 1170.5:2004). Three geog

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18

Kumar, Ravi Rausan. "Comparative Study of Framed Structures with Shear Wall Structure." International Journal for Research in Applied Science and Engineering Technology 12, no. 6 (2024): 1103–10. http://dx.doi.org/10.22214/ijraset.2024.63250.

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Abstract: High rise building structures are both a necessity and a matter of sophistication and pride for structural engineers. Buildings crossing 25 to 30 storeys are a common phenomenon these days. But what happens to a structure as it crosses these height limits? Forces of nature in the form of earthquakes and cyclones starts playing brutal games with the structures. Higher the structure goes; higher it attracts the forces and wrath of nature in the form of seismic force. Seismic force, predominantly being an inertia force depends on the mass of the structure. As the mass of the structure i

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19

Indulkar, Nitin, Prof A. N. Humnabad, and Prof Dr Navnath V. Khadake. "Comparative Study of Seismic analysis of Bridge Substructure in different Seismic Zones as per IRC Guidelines." International Journal for Research in Applied Science and Engineering Technology 10, no. 5 (2022): 3551–57. http://dx.doi.org/10.22214/ijraset.2022.43016.

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Abstract: The capacity design philosophy has currently become design norm for the seismic design of structural systems. it is necessary to assess the overstrength capacity of piers before proceeding with the design of the foundation and superstructure. This paper is devoted to developing deterministic procedures for the seismic analysis of substructure and foundation. Therefore, a moment-curvature approach is analysed. A parametric study is then conducted to investigate the factors that causes the seismic forces in the system. A simplified analysis methodology is put forward based on IRC SP 11

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20

Miralimov Mirrakhim. "Assessment of Seismic Resistance of a Frame Building With Energy-Efficient Enclosures." Journal of Information Systems Engineering and Management 10, no. 48s (2025): 987–93. https://doi.org/10.52783/jisem.v10i48s.9718.

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The paper presents the results of calculations of a two-story building with conventional and energy- efficient external fences for a special combination of loads, taking into account seismic forces. The results of calculations are compared and the changes in the values of seismic forces, internal forces and deformations in the case of energy-efficient fencing are evaluated.

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21

Bai, Bing, Ze Yu Wu, and Xiao Shan Deng. "Longitudinal Seismic Forces of Long-Span Bridge." Advanced Materials Research 255-260 (May 2011): 1134–37. http://dx.doi.org/10.4028/www.scientific.net/amr.255-260.1134.

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Based on the numerical simulation and finite element method, the longitudinal seismic action of a long-span continuous bridge is systematically analyzed. Four load cases are considered, i.e. bridge without piers, bridge with piers, neglecting friction force and combining friction force and pier scouring respectively. Calculation results show that: when considering the piers, the contribution of piers to bridge longitudinal seismic forces is depending on the concrete problems; when the friction force of rubber supports is regarded, sliding support greatly enhances the longitudinal overall rigid

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22

Patil, Abhishek K., Adarsh P. Solanke, Kuldeep R. Dabhekar, et al. "Comparative Analysis of Structure with and without Seismic Load." IOP Conference Series: Materials Science and Engineering 1197, no. 1 (2021): 012028. http://dx.doi.org/10.1088/1757-899x/1197/1/012028.

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Abstract Engineers are mostly adopting complex non-linear methods to research multi-storey residential apartment structure to withstand earthquake forces. This paper uses much simpler Equivalent Static method to analyse G+5 storey structure to repel earthquake forces using Staad pro software. The seismic analysis is further compared with non-seismic analysis of an equivalent structure using dead load + super load combination. it had been observed that the seismic results obtained consisted of significantly increased maximum moments and shear forces than the non-seismic analysis From past earth

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23

Vail Karakale and Fathi M Layas. "Rationale for updating earthquake design forces in modern building codes." World Journal of Advanced Engineering Technology and Sciences 14, no. 1 (2025): 103–9. https://doi.org/10.30574/wjaets.2025.14.1.0005.

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Modern seismic design codes aim to prioritize life safety by permitting controlled structural damage during significant earthquakes while preventing catastrophic failures. This philosophy aligns well with regions of low seismic frequency, where major earthquakes occur roughly every 50–100 years. The current approach uses reduction factors (R) to minimize the size of structural members, balancing safety and economic considerations over a building's typical 100-year lifespan. However, this methodology allows for irreparable damage to structures during major seismic events, which is deemed accept

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24

Rajkapoor, Mandraia, and Arafat Rehman Dr. "Design and Safety Measures Analysis in Construction of Bhopal Metro Project." International Journal of Innovative Science and Research Technology 7, no. 10 (2022): 415–17. https://doi.org/10.5281/zenodo.7263760.

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Various aspects relevant to precast segmental bridges such as vibration characteristics, Behaviour of pre-stressing tendons, methods of improving ductility are addressed towards estimating dynamic response and resisting seismic forces. Findings of several International codes and recent worldwide research are discussed. The discussion and conclusions provided herein will be useful in designing precast segmentally constructed bridges against high seismic forces with greater reliability. The bridge is designed to resist seismic forces in which certain parts of the structure are allowed to yield (

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25

Borde, Anita Popatrao. "Comparative Study on the Seismic Analysis and Wind Analysis of Multistorey Building with Shear Wall and Diagrid." International Journal for Research in Applied Science and Engineering Technology 13, no. 2 (2025): 464–72. https://doi.org/10.22214/ijraset.2025.66857.

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The present study investigates the behaviour of G+50 storey octagonal shaped building provided with shear wall at different locations and diagrid, by inter-combining all these parameters of shear wall and diagrid; total six model of G+50 storey building are prepared. The seismic and wind analysis of G+50 storey building is carried out by using structural analysis and design computer program STAAD Pro. The dynamic analysis (Response Spectrum Method) of G+50 storey octagonal shaped building with shear wall at a different locations and diagrid is carried out by using structural analysis and desig

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26

LIVAOGLU, RAMAZAN, ALPER TURAN, M. HESHAM EL NAGGAR, and ADEM DOGANGUN. "THE NUMERICAL AND EMPIRICAL EVALUATION OF STRUCTURAL PERFORMANCE OF ELEVATED TANKS CONSIDERING SOIL–STRUCTURE INTERACTION EFFECTS." Journal of Earthquake and Tsunami 06, no. 02 (2012): 1250008. http://dx.doi.org/10.1142/s179343111250008x.

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Water tanks are an essential lifeline whose continuing availability and serviceability immediately after earthquake events are crucial for providing undisrupted emergency services. Their seismic performance is, therefore, of paramount importance. The seismic response of an elevated liquid tank situated on a soft soil deposit was studied by means of field vibration tests and numerical simulations. The ambient and forced vibration tests were conducted to identify the soil–structure interaction (SSI) effects on the small strain dynamic behavior of the structure. A series of time domain numerical

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27

Goel, Rakesh K., and Anil K. Chopra. "Extension of Modal Pushover Analysis to Compute Member Forces." Earthquake Spectra 21, no. 1 (2005): 125–39. http://dx.doi.org/10.1193/1.1851545.

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This paper extends the modal pushover analysis (MPA) procedure for estimating seismic deformation demands for buildings to compute member forces. Seismic demands are computed for six buildings, each analyzed for 20 ground motions. A comparison of seismic demands computed by the MPA and nonlinear response history analysis (RHA) demonstrates that the MPA procedure provides good estimates of the member forces. The bias (or error) in forces is generally less than that noted in earlier investigations of story drifts and is comparable to the error in the standard response spectrum analysis (RSA) for

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Țurcan, Vadim, Mihail Ștascov, and Evgheni Cutia. "EVALUATION OF SEISMIC FORCES ACCORDING TO EUROCODE 8 AND SNiP II-7-81. COMPARATIVE ANALYSIS." JOURNAL OF ENGINEERING SCIENCE 31, no. 1 (2024): 55–65. http://dx.doi.org/10.52326/jes.utm.2024.31(1).05.

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The evaluation of seismic forces is very important for the design of all types of structures. In the present, Republic of Moldova is in a period of transition in the construction industry from the national design norms to the European design norms. The comparison provides an interesting and imperative approach in design of structures. During the design process it is very important to be aware of all the forces acting on a structure, especially the accidental forces. This paper presents a comprehensive analysis of a concrete frame structure, subjected to seismic action. A calculation is perform

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29

Humar, JagMohan, Soheil Yavari, and Murat Saatcioglu. "Design for forces induced by seismic torsion." Canadian Journal of Civil Engineering 30, no. 2 (2003): 328–37. http://dx.doi.org/10.1139/l02-029.

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Eccentricities between the centres of rigidity and centres of mass in a building cause torsional motion during an earthquake. Seismic torsion leads to increased displacement at the extremes of the building and may cause distress in the lateral load-resisting elements located at the edges, particularly in buildings that are torsionally flexible. For an equivalent static load method of design against torsion, the 1995 National Building Code of Canada specifies values of the eccentricity of points through which the inertia forces of an earthquake should be applied. In general, the code requiremen

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30

Singh, M. P., L. M. Moreschi, L. E. Suárez, and E. E. Matheu. "Seismic Design Forces. I: Rigid Nonstructural Components." Journal of Structural Engineering 132, no. 10 (2006): 1524–32. http://dx.doi.org/10.1061/(asce)0733-9445(2006)132:10(1524).

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Singh, M. P., L. M. Moreschi, L. E. Suárez, and E. E. Matheu. "Seismic Design Forces. II: Flexible Nonstructural Components." Journal of Structural Engineering 132, no. 10 (2006): 1533–42. http://dx.doi.org/10.1061/(asce)0733-9445(2006)132:10(1533).

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Quimby, T. Bartlett. "Seismic Forces in Spherical Domes: Membrane Solution." Journal of Engineering Mechanics 121, no. 11 (1995): 1272–75. http://dx.doi.org/10.1061/(asce)0733-9399(1995)121:11(1272).

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Kaynia, Amir M., and Saeed Mahzooni. "Forces in Pile Foundations under Seismic Loading." Journal of Engineering Mechanics 122, no. 1 (1996): 46–53. http://dx.doi.org/10.1061/(asce)0733-9399(1996)122:1(46).

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34

Palaskas, M. N., Limin He, and Michael Chegini. "Vertical Seismic Forces on Elevated Concrete Slabs." Practice Periodical on Structural Design and Construction 1, no. 3 (1996): 88–90. http://dx.doi.org/10.1061/(asce)1084-0680(1996)1:3(88).

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35

Haroun, Medhat A., and Rong Chang. "Internal Seismic Forces on Submerged Oil Tanks." Journal of Waterway, Port, Coastal, and Ocean Engineering 111, no. 6 (1985): 1000–1008. http://dx.doi.org/10.1061/(asce)0733-950x(1985)111:6(1000).

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36

CHANDRASEKARAN, S., A. K. JAIN, and N. R. CHANDAK. "SEISMIC ANALYSIS OF OFFSHORE TRIANGULAR TENSION LEG PLATFORMS." International Journal of Structural Stability and Dynamics 06, no. 01 (2006): 97–120. http://dx.doi.org/10.1142/s0219455406001848.

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Oil and gas production from deep-water offshore fields represent a major structural engineering challenge for the industry. The tension leg platform (TLP) is a well-established concept for deep-water oil exploration. It is necessary to design an offshore TLP such that it can respond to moderate environmental loads without damage, and is capable of resisting severe environmental loads without seriously endangering the occupants. Seismic analysis of triangular TLP under moderate regular waves is investigated. The analysis considers nonlinearities due to the change in tether tension and nonlinear

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37

Garipov, A. I., and P. A. Pyatkin. "Seismic analysis method of steel structures connections." Вестник гражданских инженеров 17, no. 2 (2020): 51–59. http://dx.doi.org/10.23968/1999-5571-2020-17-2-51-59.

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The article presents a technique of calculating steel structures connections taking into consideration the results of seismic analysis of steel structure carried out by linear spectral method. This technique allows reaching the equilibrium of forces and moments applied to the connection, wherein extreme internal forces’ values received correspond to the internal forces’ values obtained according to the currently valid acting construction codes.

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Chrysostomou, C. Z., N. Kyriakides, A. J. Kappos, L. Kouris, E. Georgiou, and M. Millis. "Seismic Retrofitting and Health Monitoring of School Buildings of Cyprus." Open Construction and Building Technology Journal 7, no. 1 (2013): 208–20. http://dx.doi.org/10.2174/1874836801307010208.

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The vulnerability of existing buildings to seismic forces and their retrofitting is an international problem. The majority of structures in seismic-prone areas worldwide are structures that have been designed either without the consideration of seismic forces, or with previous codes of practice specifying lower levels of seismic forces. In Cyprus, after the three earthquakes that occurred in 1995, 1996, and 1999, the Cyprus State, acting in a pioneering way internationally, has decided the seismic retrofitting of all school buildings, taking into account the sensitivity of the society towards

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Fattah, Mohammed Y., and Asma Y. Al-Tae'e. "SEISMIC CONDITIOT{S IN BAGHDAD REGION ANI) EVALUATION OF SETSMIC DESIGN FORCES." Journal of Engineering 10, no. 3 (2024): 399–412. http://dx.doi.org/10.31026/j.eng.2004.03.09.

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In this paper, a study of the earthquakes that have affected Baghdad region in Iraq is made" The documents collected from different references are analyzed to determine the seismic zone of Baghdad. Evaluation of seismic design forces for equivalent static analysis of earthquakes in Baghdad region is mc"de according to the Iraqi seismic code and the lnternational Building Code (I8C,2000). The studies reached that intensity greater than V on Mercalli Scale has never been recorded on the site at Baghdad. While Seismicity Map of Iraq, proposed by Iraqi Seismic Code, reveals that, Baghdad places in

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Xu, Yang, Jun Zhao, Xiao Yan Xu, and Dan Zhu. "Response Spectrum Analysis of a Large-Span Hangar Subjected to Multi-Dimensional Seismic Inputs." Advanced Materials Research 639-640 (January 2013): 906–10. http://dx.doi.org/10.4028/www.scientific.net/amr.639-640.906.

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The multi-dimensional seismic response of a single-span hangar was studied by response spectrum analysis method. The lateral displacements of the structure, forces of its supporting columns and its roof structure were calculated and compared with each other for cases of one-, two- and three-dimensional (1D, 2D and 3D) seismic inputs. The results show that, compared with the case of 1D earthquake input, the effects of horizontally 2D earthquake inputs on the internal forces and displacements of its supporting columns in the primary direction of input are obvious when it is along the symmetrical

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Usarov, Makhamatali, Gulom Isaev, Dilshod Shamsiev, Makhsut Kurbanbaev, and Elyor Toshmatov. "Seismic resistance calculation in multi-story structures under vibration forces." E3S Web of Conferences 583 (2024): 06006. http://dx.doi.org/10.1051/e3sconf/202458306006.

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The article is devoted to developing methods for solving the problem of seismic vibrations using a continuous spatial plate model of a multi-story building developed within the framework of the bi-moment theory of thick plate structures. A method for dynamic spatial calculations for seismic resistance of multi-story buildings under longitudinal seismic influences is proposed. Formulas are given for determining the reduced elastic moduli. The values of eigenfrequencies, displacements, and stresses are determined within the framework of the resonance method.

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Dumre, Pawan, Mahendra Acharya, Asim Timalsina, et al. "Comparative Case Study of RC Frame Using Finite Element Modeling Under NBC 105:2020 and IS 1893 (Part 1):2016." American Journal of Civil Engineering 13, no. 3 (2025): 122–36. https://doi.org/10.11648/j.ajce.20251303.12.

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Nepal’s high seismic vulnerability necessitates stringent design codes to mitigate infrastructure risks. This study compares a regular reinforced concrete frame under Nepal’s NBC 105:2020 and India’s IS 1893 (part 1):2016 using finite element modeling in ETABS and SAP2000 commercial software, incorporating stiffness modifiers prescribed in the codes. Seismic parameters are compared in both ETABS and SAP2000, and for design forces and reinforcement requirements, only ETABS is used. Seismic analyses employed Equivalent Static and Response Spectrum methods. Results reveal NBC 105:2020 mandates do

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Chen, Ying-Ying, Hong Xiao, Xu-Guo Song, Shuai-Jie Guo, Bei-Er Luo, and Mahantesh M. Nadakatti. "Seismic Response Analysis of Concrete Box-Type Subgrade in High-Speed Railways." Applied Sciences 14, no. 24 (2024): 11899. https://doi.org/10.3390/app142411899.

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China is prone to frequent earthquakes, impacting both the construction and operation of high-speed railways. The seismic response analysis is essential for the promotion and structural optimization of novel box-type subgrade structures. This paper develops a nonlinear integrated spatial dynamic model of a ballastless track and box-type subgrade, investigating structural vibrations under multi-dimensional seismic actions using the time–frequency domain method. A seismic performance analysis of the structure is conducted to examine the influence of seismic intensity on its seismic response. Res

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Poletto, Flavio. "Energy balance of a drill-bit seismic source, part 2: Drill-bit versus conventional seismic sources." GEOPHYSICS 70, no. 2 (2005): T29—T44. http://dx.doi.org/10.1190/1.1897039.

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The radiation properties of a downhole drill-bit seismic source are related to the amplitude and frequency of the forces exerted by the working bit. The main vibration modes of roller-cone and polycrystalline diamond compact (PDC) bits are investigated under different drilling conditions. The analysis includes vibrations produced by teeth indention, multilobed patterns, bouncing with periodic and random effects, single-cutter forces, stick-slip and whirling effects, mud-pressure modulation forces, and bit wear. Drill-bit radiation properties are calculated using the results obtained in part 1

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Bosco, M., A. Ghersi, E. M. Marino, and P. P. Rossi. "A Capacity Design Procedure for Columns of Steel Structures with Diagonals Braces." Open Construction and Building Technology Journal 8, no. 1 (2014): 196–207. http://dx.doi.org/10.2174/1874836801408010196.

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According to modern seismic codes, in concentrically braced frames the seismic input energy should be dissipated by means of the hysteretic behaviour of braces while all the other members (i.e. beams and columns) have to remain elastic. Accordingly, the design internal forces of braces are determined in these codes by elastic analysis of the structure subjected to seismic forces obtained by the design spectrum. The internal forces of the non-dissipative members, instead, are calculated by means of specified rules for the application of capacity design principles. According to some recent numer

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BANU, Dr S. SHAMEEM, T. SREEVALLI KAMESWARI, B. RAVI, J. PAVAN KUMAR, SK MEHARAJUNNISA, and S. SOWMYA. "Analysis of Hyperbolic Cooling Tower Across Varying Earthquake Zones." INTERNATIONAL JOURNAL OF SCIENTIFIC RESEARCH IN ENGINEERING AND MANAGEMENT 09, no. 05 (2025): 1–7. https://doi.org/10.55041/ijsrem48179.

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This project uses STAAD to present the seismic analysis of a hyperbolic natural draft cooling tower located in Krishnapatnam Nellore district, Andhra Pradesh. As a vital component in industrial and power plant infrastructure, the structural stability of cooling towers under seismic loading is essential— particularly in regions like Krishnapatnam, which lies in Seismic Zone III as per IS 1893:2002. A tower model with realistic dimensions and material properties was analyzed under seismic forces corresponding to Zones II, III, IV, and V. The comparative study highlights the tower's behaviour und

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Dharmale, Mr Purnesh N. "Seismic Damage Assessment of RCC Structure Considering Infill Walls and Coupled Forces." International Journal for Research in Applied Science and Engineering Technology 12, no. 6 (2024): 1431–36. http://dx.doi.org/10.22214/ijraset.2024.63326.

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Abstract: Seismic damage assessment of reinforced concrete (RC) structures is a critical aspect of structural engineering, especially in regions prone to earthquakes. These assessments ensure the safety and integrity of buildings during seismic events. Incorporating infill walls and understanding coupled forces are pivotal in accurately predicting and mitigating damage. Infill walls, although non-structural, significantly influence the dynamic behavior and overall seismic performance of RC structures. They interact with the structural frames, affecting stiffness, strength, and failure modes, w

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Sangeeta, Uikey, and Rahul Satbhaiya Er. "Seismic Response Analysis of Tall Building Using STAAD Pro Software." Journal of Earthquake Science and Soil Dynamics Engineering 3, no. 1 (2020): 1–7. https://doi.org/10.5281/zenodo.3685732.

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The main objective of this whole project is to Seismic Response Analysis Of Tall Building Using Staad Pro Software Load calculations are done manually and analysis of whole structure by STAAD Pro Software. Limit State Design conforming to Indian Standard Code of Practice is method used in STAAD-Pro analysis for designing. STAADPro is the software of professional’s choice. I had done the analysis of frames and manually checked the accuracy of the software with our results obtained. The results proved to be very precise and accurate. Ihad analyzed and designed a G+4, G+9, G+14, & G+19

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Xiao, Jie Ling, Xian Kui Wei, Ping Wang, and Meng Nan Zhang. "Research on Longitudinal Seismic Response of Continuous Welded Rail on Bridge with High-Pier and Long-Span." Advanced Materials Research 838-841 (November 2013): 1063–68. http://dx.doi.org/10.4028/www.scientific.net/amr.838-841.1063.

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Longitudinal seismic responses of CWR on bridges with high-piers and long-spans under uniform excitation and traveling wave effect were studied. Results are shown as follows: Under seismic action, rail longitudinal forces near beam joints increase greatly than rail expansion forces (due to beam expansion); Designing CWR on bridges with high-piers and long-spans needs to consider influences of traveling wave effect and wave spreading derection; With the increase of the apparent velocity of seismic waves, rail longitudinal force tends to decrease; We suggest that designing of CWR on bridges cros

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Yang, Xi Wen, and Zi Bao Lian. "Seismic Displacements Reduction for a Long-Span Cable-Stayed Bridge." Advanced Materials Research 255-260 (May 2011): 840–45. http://dx.doi.org/10.4028/www.scientific.net/amr.255-260.840.

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Floating or semi-floating systems are usually employed for long-span cable-stayed bridges to lengthen their fundamental periods, and accordingly, to reduce their seismic inertial force, but the structures’ seismic displacements could be increased by utilizing these systems. Taking Yong-jiang railway cable-stayed bridge which has a low center of gravity as engineering background, the function of viscous dampers in controlling seismic displacements is studied. Firstly, the rational parameters of dampers are determined by parametric analysis, and then the seismic displacements and forces of the b

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