Дисертації з теми "Historic masonry building"
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Rubach, Brenda S. "A field guide for the preservation of historic brick and mortar in Mississippi." Virtual Press, 1990. http://liblink.bsu.edu/uhtbin/catkey/722437.
Повний текст джерелаDepartment of Architecture
Kontrim, Kathryn L. "Seismic analysis of Fire Station No. One : a historic unreinforced masonry building /." Thesis, This resource online, 1996. http://scholar.lib.vt.edu/theses/available/etd-09042008-063734/.
Повний текст джерелаSelli, Nicola. "Static and seismic analysis of a historic masonry building in San Pio delle Camere." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2022.
Знайти повний текст джерелаZEESHAN, BADAR-UL-ALI. "Constructing an Innovative Base-Isolation System under Masonry Structures." Doctoral thesis, Politecnico di Torino, 2014. http://hdl.handle.net/11583/2540704.
Повний текст джерелаBorra, Sai Sindhu. "Investigations procedures for the diagnosis of historic buildings: a case study from Guiglia (Modena)." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2022.
Знайти повний текст джерелаStanislav, Štěpán. "Průzkum a hodnocení zděné budovy před modernizací." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2014. http://www.nusl.cz/ntk/nusl-226974.
Повний текст джерелаValek, Jan. "Lime mortars in historic buildings." Thesis, University of the West of Scotland, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.311778.
Повний текст джерелаTeomete, Egemen Aktaş Engin. "Finite element modeling of historical masonry structures;case study: Urla Kamanli Mosque/." [s.l.]: [s.n.], 2004. http://library.iyte.edu.tr/tezler/master/insaatmuh/T000494.pdf.
Повний текст джерелаDe, Viti Caterina. "Historic Adobe Masonry Buildings in Portugal: Material Characterization and Numerical Modelling." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2018.
Знайти повний текст джерелаKayan, Brit Anak. "Green maintenance for historic masonry buildings : a life cycle assessment approach." Thesis, Heriot-Watt University, 2013. http://hdl.handle.net/10399/2676.
Повний текст джерелаDinu, Popa Emil Alexandru. "The energetic retrofit of historic masonry buildings : focus on Central and Northern Europe." Research Showcase @ CMU, 2010. http://repository.cmu.edu/theses/54.
Повний текст джерелаKorany, Yasser Drysdale Robert G. "Rehabilitation of masonry walls using unobtrusive FRP techniques for enhanced out-of-plane seismic resistance /." *McMaster only, 2004.
Знайти повний текст джерелаSickels, L. B. "Mortars in old buildings and masonry conservation : A historical and practical treatise." Thesis, University of Edinburgh, 1987. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.379336.
Повний текст джерелаKucukdogan, Bilge. "An Investigation Of Strengthening Of Historical Masonry Constructions By Steel Skeleton." Master's thesis, METU, 2007. http://etd.lib.metu.edu.tr/upload/12608615/index.pdf.
Повний текст джерелаAkevren, Selen. "Non-destructive Examination Of Stone Masonry Historic Structures-quantitative Ir Thermography And Ultrasonic Velocity." Master's thesis, METU, 2010. http://etd.lib.metu.edu.tr/upload/12611673/index.pdf.
Повний текст джерелаOzen, Onder Garip. "Comparison Of Elastic And Inelastic Behavior Of Historic Masonry Structures At The Low Load Levels." Master's thesis, METU, 2006. http://etd.lib.metu.edu.tr/upload/12608248/index.pdf.
Повний текст джерелаs computing facilities and methods make FEM the most suitable analysis method for complex structural geometry and heterogeneous material properties. Even the shrinkage, creep of the material can be considered in the analysis. Because of this reason Finite Element Method (FEM) is used to analyze such structures. FEM converts the structure into finite number of elements with specific degree of freedoms and analyses the structure by using matrix algebra. However, advanced FEM methods considering the inelastic and time dependent behavior of material is a very complex and difficult task and consumes considerable time. Because of this reason, to analyze every historical structure is not feasible by applying advanced inelastic FEM, whereas elastic FEM analysis at low load levels is very helpful in understanding the behavior of the structure.The analysis of a masonry gate in the historical city, Hasankeyf is the case study of this thesis. Different common software are used in FEM to compare the stresses, deformations, modal shapes etc. of the same structure. Besides the inelastic behavior of the structure is investigated and compared with the elastic behavior of the structure. The study is intended to show that at the low load levels elastic FEM analysis is sufficient to understand the response of the structure and is preferable to the inelastic FEM analysis unless a very complex analysis is required
Haun, Katherine K. "Insulating the exterior wall of historic buildings : analysis of the Park Inn Hotel." Virtual Press, 2008. http://liblink.bsu.edu/uhtbin/catkey/1390316.
Повний текст джерелаDepartment of Architecture
Faralli, Anna Chiara. "Seismic vulnerability of the ancient albergotti's manor in Arezzo, Italy." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2013. http://amslaurea.unibo.it/5956/.
Повний текст джерелаAktas, Yasemin Didem. "Technological Characteristics Of A Brick Masonry Structure And Their Relationship With The Structural Behaviour." Master's thesis, METU, 2006. http://etd.lib.metu.edu.tr/upload/12607814/index.pdf.
Повний текст джерелаJiménez, Ramirez Belén. "Seismic vulnerability assessment of traditional timber frame and masonry wall buildings : aplication to the historical centre of Valparaíso, Chile." Doctoral thesis, Universitat Politècnica de Catalunya, 2021. http://hdl.handle.net/10803/671491.
Повний текст джерелаLa vulnerabilidad sísmica de zonas urbanas expuestas a terremotos representa una creciente preocupación en el campo de la ingeniería debido al potencial riesgo de colapso de los edificios, y las consecuencias devastadoras que afectan a sus habitantes. Esta inquietud ha motivado el desarrollo de nuevas estrategias para la evaluación de la vulnerabilidad sísmica de los edificios existentes en centros urbanos. Un correcto estudio de la vulnerabilidad sísmica constituye el punto de partida para la correcta implementación de estrategias de mitigación enfocadas a aumentar la resiliencia sísmica de las ciudades. Los estudios de vulnerabilidad sísmica a escala urbana requieren un alto nivel de conocimiento respecto a las tipologías constructivas existentes, información comúnmente sesgada por las incertidumbres intrínsecas de los edificios, asociadas a los materiales y técnicas de construcción locales, especialmente en territorios compuestos por construcciones históricas o de naturaleza vernácula. Una etapa propedéutica de este tipo de estudios es la definición de una taxonomía de edificios, que permita caracterizar los sistemas estructurales existentes y detectar sus principales fuentes de vulnerabilidad. Esta tesis doctoral contribuye al desarrollo de una metodología para el levantamiento sistemático de edificios históricos en centros urbanos, basada en la formulación de cuatro formularios de encuestas para tipologías estructurales de entramado de madera, mampostería, hormigón armado y acero/hierro forjado. Otra importante contribución de esta tesis se centra en la calibración de modelos numéricos simplificados y orientados a la práctica para la evaluación de la vulnerabilidad sísmica de edificios tradicionales compuestos por muros de entramados de madera y mampostería. El comportamiento no lineal dichas estructuras es simulado mediante el uso de Modelos de Plasticidad Concentrada para muros de entramado de madera, y modelos continuos de Elementos Finitos para muros de mampostería. La calibración de estos modelos se lleva a cabo en base a rigurosas comparaciones entre diferentes ensayos experimentales disponibles en la literatura científica. Los modelos propuestos se utilizan para la evaluar la vulnerabilidad sísmica de dos edificios existentes situados en el centro histórico de la ciudad de Valparaíso, Chile. Este caso de estudio se caracteriza por su singular entorno urbano, donde predominan los sistemas estructurales compuestos por muros de entramados de madera y mampostería. Los modelos numéricos se utilizan para analizar diferentes configuraciones estructurales de los edificios de entramado de madera y mampostería localizados en tres barrios históricos del centro de la ciudad de Valparaíso. Este estudio examina diferentes configuraciones estructurales que difieren en la organización de los sistemas resistentes, número de plantas y la presencia de irregularidades estructurales. La siguiente etapa de esta investigación propone una calibración preliminar del Método del Índice de Vulnerabilidad (MIV) para edificios de entramado de madera y mampostería. Una nueva ficha de vulnerabilidad se calibra en base a una investigación numérica y en la aplicación del Método N2 para determinar el rendimiento sísmico de los edificios. Esta tesis culmina con un estudio prospectivo de la vulnerabilidad sísmica aplicando el MIV a 111 edificios ubicados en tres barrios del centro histórico de Valparaíso. Esta incluye dos de las principales rutas de evacuación de la ciudad en caso de tsunami y alberga diferentes tipologías de edificios patrimoniales, hechos de entramados de madera, mampostería y hormigón armado. Los resultados obtenidos se utilizan para crear mapas de vulnerabilidad sísmica en el entorno GIS que pueden utilizarse para llevar a cabo planes futuros para la implementación de estrategias de mitigación de la vulnerabilidad.
Sener, Ipek Nese. "An Innovative Methodology And Structural Analysis For Relocation Of Historical Masonry Monuments: A Case Study In Hasankeyf." Master's thesis, METU, 2004. http://etd.lib.metu.edu.tr/upload/12605025/index.pdf.
Повний текст джерелаLundgren, Mårtensson Linda, and Ioannou Stephanie Björkman. "Arbetsgång efter brand i en kulturhistorisk byggnad : Med fokus på återställandet av konstruktionen." Thesis, KTH, Byggteknik och design, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-259905.
Повний текст джерелаIn current situation [2019], Sweden is failing to provide preparatory plans for possible fire accidents in buildings with cultural-historical value. Because fire accidents on monumental buildings do not occur frequently, there is no standardized method on how to manage the restoration after the accident in a productive and sustainable manner. Purpose of the report is to produce a simplified standardized and measurable work process on how to improve arrangements during a fire accident on monumental buildings, where preventive measures, improvements during fire process and restoration of the building are included. The report is written with the aim of preserving good social sustainability and for preserving the Swedish cultural heritage for the future. The goal when restoring a cultural-historical heritage building is to maintain the classical appearance and to preserve the traditional and original condition. The main object reviewed is the cultural heritage building Kasern II on Skeppsholmen together with two more reference objects. The main object, where the fire accident takes place in September 2016, is today [2019] being restored after extensive moisture damage from the extinguishing work and fire damage to the material which was exposed to high temperature. Part of the standardized process is to describe how the choice of extinguishing agent can determine the extent of moisture damage to the material of the building and how pollution from the extinguishing agent and fire residues affect the neighboring environment from a sustainable point of view. Preventive fire protection and desirable fire protection after restoration work are also included. The report materially presents bricks and wood, which most often constitute the supporting structure and the floor structure of a cultural-historical building. By observing how wood materials and masonry react at high temperature and humidity, an assessment is made whether these materials can be decontaminated and reused or need to be discarded. In addition, with focus on restauration of the construction, decontamination methods for removal of fire odor and microbiological growth on wood materials are studied. Goal when restoring a building with cultural heritage is to maintain the traditional construction, therefore the solid brick and wooden beams are to be remedied to the extent required to preserve them. The choice of fire protection installations varies depending on the building's design and purpose. An example is the installation of sprinklers, which is a tradeoff between the risk of fire and the risk of possible moisture damage in the event of fire. Compressed air foam system [CAFS] is the extinguishing equipment used during extinguishing work on Kasern II which, compared to other extinguishing systems, emits less water therefore minimizing moisture damage. During the fire accident, updated drawings, documentation and action plans help the rescue service perform a functional extinguishing work. Bricks are resistant to fire as bricks are burned during manufacturing process. During a fire accident, bricks may crack if the sintering temperature is exceeded or in case of a rapid cooling during extinguishing work. Cracks can be restored with reinforcement on masonry. As cracks in brick are usually visible to the naked eye, bricks are reused if there is no visible physically damage to the material. The strength of wood material does not deteriorate when exposed to high temperature except in the burned part called char, which lies on the surface layer of the beam after fire exposure. The charring part can be mechanically planed away during sanitation. Mechanical planning is regarded as a relatively simple sanitation method and does not require any chemical environmentally impacting substances.
Lin, Yu-Chun, and 林裕鈞. "Assessment of Masonry Wall under Out-of-Plane Force for Historic Building." Thesis, 2013. http://ndltd.ncl.edu.tw/handle/79228859088325134311.
Повний текст джерела國立成功大學
建築學系碩博士班
101
The failure modes of out-of-plane behavior of masonry wall are related to boundary conditions, size and location of the opening, interaction of fin walls, and loading conditions. In Taiwan, the most critical problem is that of three-edge constraint boundary condition. Hence in this study, experimental investigation for three-edge constrained masonry wall was conducted and used for the lateral force evaluation of the masonry wall. A total of 11 large specimens were tested, of which three specimens with openings and the other eight without. After the experiment, uncracked areas from the tested large specimens were cut into 109 small pieces, each in different angles to the bed joint, and underwent another round of uniaxial bending test. Finally, the out-of-plane strength of large specimens were assessed and compared with testing results. In addition, two assessment examples of historic building were evaluated. According to the study, the following results were found: 1. For the uniaxial flexural behavior of masonry, the bed joint flexural strength fb0 is controlled by the interface bonding strength between brick and mortar. The flexural strength parallel to the bed joint (fb90) is controlled by the shear strength of the bed joint interface, and is caused by toothed failure or failure through bricks. For other angles, flexural strength is mainly controlled by fb0 when the angle is smaller than 45°; and when the angle is larger than 45°, fb90 governed. 2. The failure mechanism of three-edge constrained wall specimens without openings and buttresses fits relatively well with the yield-line analysis. For specimens with buttress design, the failure mechanism changed to vertical cracks near the buttress, and the ultimate strength is higher than those without buttresses. The assessment for ultimate out-of-plane load by yield-line method and modified Eurocode 6 is calculated and compared with test results. It is found that results obtained from yield-line method is 30% higher than test results; whilst in the case of modified Eurocode 6, the calculated results are 8-26% higher. 3. The failure mechanism of three-edge constrained wall specimens with openings is closely met with that of damaged walls by earthquakes. Horizontal cracks along the window sill level and inclined cracks at both top corners of the openings were observed. The ultimate strength of specimens with openings were simplified as grid system and assessed by both elastic and ultimate analyses. Under the elastic analysis, error assessment is within 10% range whilst, nearly 50% error was observed from the ultimate analysis.
Chen, Jun-Hung, and 陳俊宏. "A Study on Ambient Vibration Measurement and Earthquake Damage Behavior of Spacious Masonry Historic Building(Illustrated by the Assembly Hall of Ching Shui Elementary School,Taichung)." Thesis, 2006. http://ndltd.ncl.edu.tw/handle/78283886713270506629.
Повний текст джерела國立成功大學
建築學系碩博士班
94
Taiwanese historical buildings, contain abundant cultural and historic significance, were deeply damaged because September 21 Chi Chi earthquake that caused quite historic sites and buildings to damage. Consequently, it makes quite attention in building structure security from nowadays industry-academy relevant institutions to conserve very rich achievement; whereas, still exists the lack of the relevant analysis of masonry building structure and earthquake damage concept. This thesis regards as the case of studying with the assembly hall of Ching Shui Elementary School in Taichung County, is to explore the basic dynamic characteristic of structure in analysis model of ambient vibration measurement and SAP2000, also further situation of the earthquake damage of spacious masonry historic buildings. The research approach is to modify the plane aspect ratio of the assembly hall of Ching Shui Elementary School in Taichung County, mainly to reduce the span of Fink Truss rafter of the assembly hall, it could be divided into two different abatement by two span and four span as direction of studying, and make plane aspect ratio as 1.7:1, 1.3:1 & 1:1, etc. three types. Then make the plane aspect ratio divided into open ratio as 30%, 50%, also increase horizontal braces of one side and crossing horizontal braces, include the above-mentioned single level plane aspect ratio, totally five types. This study makes fifteen types of spacious masonry historic buildings. The results of this research are as follows: 1. The natural frequency of ambient vibration measurement is higher, while comparing the exams via analysis model of ambient vibration measurement and SAP2000. 2. The shorter is the length of longitudinal wall, the weaker is the central stress of gable wall. 3. The stronger is the central stress of longitudinal wall, the shorter is the length of wall. 4. While the opening ratio of longitudinal wall is increased, so is the stress of gable wall; whereas, the most displacement and the opening ratio are reverse. 5. In plane aspect ratio to be 1.3:1, we can get the most opening ratio of all walls with the structure of Assembly Hall of Ching Shui Elementary School in Taichung County. 6. To increase cross horizontal braces into every plane aspect ratio, the most central displacement of north-south wall will be decreased along with the upgrade of the horizontal braces, and the improving benefit rate is about 12%.
Mazziotti, Alessandra. "Structural analysis of historical masonry buildings." Tesi di dottorato, 2016. http://www.fedoa.unina.it/11079/1/mazziotti_alessandra_28.pdf.
Повний текст джерелаFu-KaiHu and 胡復凱. "Out-of-plane Behavior and Evaluation of Masonry Historic Buildings." Thesis, 2011. http://ndltd.ncl.edu.tw/handle/33158030261532071619.
Повний текст джерела國立成功大學
建築學系碩博士班
99
Past earthquakes in Taiwan have shown the collapse of masonry historic buildings to be associated with out-of-plane damage of the masonry walls. The main purpose of this study is to study the out-of-plane behavior of masonry walls through experiments. The effect of pilasters, openings and different loading conditions on the strength and damage mode of masonry walls will be analyzed. Based on the experimental results, a method for assessing the horizontal load resistance of masonry walls will be developed. Eight specimens are constructed for testing and analysis. The dimensions of the eight specimens are identical (383cm×133cm×11cm), each with an opening measuring 49cm×78cm. The experiments take the span, type and position of openings and loading modes as parameters. During each test, the load-deformation relationships, ultimate loads and damage modes will be recorded and analyzed. According to the experiment: 1.The out-of-plane damage behaviors of walls without pilasters are as follows: minor cracking at the middle of the top part of the wall, after which the wall reaches ultimate loading, signaled by further cracking of the top part into an A-shape split. Horizontal cracks develop at the bottom of the wall. 2.For specimens with a single pilaster, the load capacity is increased by 5%, whereas in the case of specimens with double pilasters, the pilasters serve to help increase the load capacity by 26%. 3.Specimens with window openings show a reduction of wall strengths ranging from 49%~35%. The damage behavior is vastly different from that of walls without openings. The width of the masonry wall between adjacent openings is the main factor influencing the wall strength. 4.An uniformly distributed load is applied to walls with single and double pilasters. Results indicate an increase in the ultimate load capacity of specimens by 41-43% relative to specimens with double concentrated load. Using the Yield Line Theory for Slabs and experimental results, a method for assessing the out-of-plane endurance of masonry walls is constructed. The subject of assessment, namely the masonry historic buildings, is restricted by the following constraints- the ratio of distance between the pilasters to the total wall length must lie within 0.33~1, and the ratio of the total length of the opening to the total wall length must be between 0 and 1. Furthermore, results from an assessment of the Er-Shui Railway Station Garage D reveal the lateral endurance of walls in both directions to be higher than the out-of-plane force imposed upon them in the event of the September 21 Chi-Chi earthquake. This finding explains the very little damage caused to the garage by the Chi-Chi earthquake.
Florio, Gilda. "Vulnerability of historical masonry buildings under exceptional actions." Tesi di dottorato, 2010. http://www.fedoa.unina.it/8292/1/Florio_Gilda_23.pdf.
Повний текст джерелаRey, Castillo Enrique del. "Parametric study of a historical masonry building subjected to seismic loading." Master's thesis, 2012. http://hdl.handle.net/1822/20464.
Повний текст джерелаEarthquakes are one of the natural hazards that have caused more losses to the mankind. Besides countless human lives, earthquakes have destroyed buildings and even cities in many places and civilizations around the world. However, the nature and origin of earthquakes, as well as their effect in built structures, have been studied in detail only recently. An important factor that influenced the progress of this science is the development of computing, which allowed to carry out complex calculations. In parallel to that, many researches have been done in the last years aimed at understanding and reproducing the effects of earthquakes in built structures. Thanks to the combination of new methods of structural analysis and powerful computing resources, accurate approaches of the behavior of a specific structure can be done nowadays. The two more widely used structural analysis methods are adopted in this thesis, namely Pushover Analysis and Time Integration Analysis. The Finite Element Method (FEM) is used to model a case study and to discuss the obtained results in detail. The case study is a ‘‘Gaioleiro’’ building, a traditional stone masonry typology used mainly in Lisbon, Portugal, between the 19th and 20th century. The study of this building started years ago with a shaking table test carried out by the National Laboratory of Civil Engineering in Lisbon (LNEC), together with University of Minho. Subsequently, a FEM model was calibrated by other authors according to the results obtained in this test. The present thesis starts with a brief introduction, some basic background about seismic engineering and a brief description of the adopted FEM model. Then the results obtained for the model with Pushover and Time History Analyses are discussed, with the aimed to contribute for the validation and application of pushover analysis in the seismic assessment of historical masonry buildings without box behavior. The main body of the thesis includes a sensitivity analysis intended to assess the influence of the material properties in the behavior of the structure, as well as the impact of rigid diaphragm floor structures and the load pattern distribution in the response of the building. The sensitivity analysis is performed for both Pushover and Time History Analyses, in order to discuss the objectivity of the results.
Os terremotos são um dos perigos naturais que causaram mais perdas para a humanidade. Além de inúmeras vidas humanas, os terremotos destruíram edifícios e até cidades em muitos lugares e civilizações ao redor do mundo. No entanto, a natureza e a origem de sismos, bem como o seu efeito em estruturas construídas, têm sido estudadas em detalhe apenas recentemente. Um fator importante que influenciou o progresso desta ciência é o desenvolvimento da computação, o que permitiu a realização de cálculos complexos. Em paralelo a isso, muitas investigações têm sido feitas nos últimos anos que visam compreender e reproduzir os efeitos de terremotos em estruturas construídas. Graças à combinação de novos métodos de análise estrutural e recursos computacionais poderosos, as abordagens precisas do comportamento de uma estrutura específica podem ser feitas hoje em dia. Os dois métodos de análise estrutural mais utilizados são adotados nesta tese, a saber a Análise Pushover e Análise dinâmica com integração no tempo. O Método dos Elementos Finitos (MEF) é usado para modelar um estudo de caso com estas técnicas e discutir os resultados obtidos em detalhe. O caso de estudo é um edifício gaioleiro, uma tipologia tradicional de alvenaria de pedra usado principalmente em Lisboa, Portugal, entre os séculos XIX e XX. O estudo deste edifício começou há alguns anos com um ensaio de mesa sísmica realizado pelo Laboratório Nacional de Engenharia Civil, em Lisboa (LNEC), em conjunto com a Universidade do Minho. Subsequentemente, um modelo MEF foi calibrado por outros autores de acordo com os resultados obtidos neste teste. A presente tese começa com uma breve introdução, algumas informações básicas sobre engenharia sísmica e uma breve descrição do modelo MEF adotado. Em seguida, os resultados obtidos para o modelo com Análises Pushover e com integração no tempo são discutidos, com o objetivo de contribuir para a validação e aplicação de análise avançada na avaliação sísmica de edifícios históricos de alvenaria sem comportamento do tipo caixa. O corpo principal da tese inclui uma análise de sensibilidade destinada a avaliar a influência das propriedades do material no comportamento da estrutura, bem como o impacto da rigidez da de diafragma do pavimento e do padrão de distribuição de carga na resposta do edifício. A análise de sensibilidade é realizada tanto para Pushover como para a integração no tempo, a fim de discutir a objetividade dos resultados.
Los terremotos son uno de los fenómenos naturales que han causado más pérdidas en la historia de la humanidad. Aparte de incontables vidas humanas, los terremotos han destruido edificios e incluso ciudades enteras en muchos lugares y civilizaciones diferentes alrededor del mundo. Sin embargo, la naturaleza y origen de los terremotos, así como su efecto en las estructuras, han sido estudiados en detalle solo en tiempos recientes. Un factor importante que ha influido en el progreso de esta rama de la ingeniería es el desarrollo de la informática, que ha permitido llevar a cabo cálculos complejos. En paralelo a esto, muchas investigaciones han sido realizadas en los últimos años, enfocadas a comprender y reproducir los efectos de los terremotos en las estructuras. Gracias a la combinación de nuevos métodos de análisis estructural y potentes recursos computacionales, aproximaciones precisas del comportamiento de una estructura específica ante cargas estáticas y dinámicas pueden ser realizados actualmente. Los dos métodos de análisis estructural más ampliamente usados en el campo académico son adoptados en esta tesis, a saber; análisis de Pushover y análisis de tiempo-historia. El método de elementos finitos (MEF) es usado para modelar el objeto de estudio y discutir en detalle los resultados obtenidos. El objeto de estudio es un edificio ‘‘Gaioleiro’’, una tipología tradicional basada en albañilería de piedra y usada principalmente en Lisboa, Portugal, entre los siglos 19 y 20. El estudio de este edificio comenzó hace años con un ensayo realizado en una mesa de vibración por el Laboratorio Nacional de Ingeniería Civil (LNEC) en Lisboa, junto con la Universidad de Minho. Posteriormente, un modelo realizado con el método de elementos finitos fue calibrado por otros autores de acuerdo con los resultados obtenidos en este ensayo. La presente tesis comienza con una breve introducción, algunos conocimientos básicos sobre ingeniería sísmica y una breve descripción del modelo adoptado. Los resultados obtenidos con el análisis de Pushover y de tiempo-historia son analizados y discutidos. El principal objetivo de este análisis es la contribución en la validación y aplicación del análisis de Pushover en la valoración sísmica de edificios históricos de albañilería sin comportamiento de ‘‘caja’’. El cuerpo principal de la tesis incluye un análisis de sensibilidad con el objeto de evaluar la influencia de las propiedades de los materiales en el comportamiento de la estructura, así como el impacto que diafragmas rígidos y diferentes patrones de distribución de cargas pueden tener en la respuesta del edificio. El análisis de sensibilidad es llevado a cabo para ambos análisis, los de Pushover y de tiempo-historia para discutir la objetividad de los resultados.
Chang, Wen-Shao, and 張紋韶. "Ambient Vibration Measurement of Listed Masonry Wall Mixed with Timber Frame Historic Buildings." Thesis, 2001. http://ndltd.ncl.edu.tw/handle/82360291128627877041.
Повний текст джерела國立成功大學
建築學系
89
In 1999, the 9/21 and 10/22 earthquakes struck central Taiwan and destroyed many historic buildings. This destruction was not only due to the large seismic magnitude, but also the lack of consideration for seismic loading during the renovation process. Considering seismic loading during the renovation process needs to take into account the dynamic characteristics of a building. The purpose of this research is to establish the database of vibration frequencies of 10 listed historic buildings in Tainan, Taiwan. Since the vulnerability of historic buildings, ambient vibration measurement (AVM) yielded the natural frequency of historic buildings rather than forced vibration. In the process of studying, firstly, the locations arranged of the sensors were discussed. Secondly, AVM was conducted during the 10:00 pm to 5:00 am. Thirdly, in order to obtain the Averaged Fourier Spectrum, the Time-History data was transformed in to Fourier Spectrum and be averaged. For the single buildings, compare the measured results with the prediction formula proposed by the code. The comparison shows that the prediction formula of the code underestimate the vibration period in transverse direction. Then, the regressive analysis was carried out to discuss the relationship of the vibration frequencies, wall ration and the height of the historic buildings to obtain an empirical formula. For the complex historic buildings, the relationship of the constructive zone and vibration frequencies was discussed. Based upon the experimental results, the following can be concluded: 1. The vibration frequencies of historic buildings tested in longitudinal and transverse direction are ranging from 3.68Hz to 8.38Hz and 3.87Hz to 7.74Hz , respectively. 2. The identical results measured on the timber frame and the masonry wall indicates that the timber frames are vibrating together with the masonry walls under ambient vibration. 3. For the single buildings, the relationship between the vibration frequency, wall ratio and the height of the buildings can be expressed as following form: (Hz) 4. The complex buildings are better to be divided into several zones, each zone has different vibration frequency.
Lin, Wu-juang, and 林武壯. "Seismic Retrofit on Masonry Arch of Historic Buildings with Low-Yield Steel Panels." Thesis, 2009. http://ndltd.ncl.edu.tw/handle/68960158551233168693.
Повний текст джерела國立成功大學
建築學系碩博士班
97
It’s most important part that how to maintain the original features on restoration in the process of conserving and protecting cultural assets, the value of monuments and historical buildings increase along with the years increase, but its structure safety situation just opposite, decrease with the years increase. How to adopt suitable reinforcement on walls related with structure safety tight is dispensable to monuments and cultural assets preservation on principle which doesn’t affects the features. The basic estimated formula is expand according to the cracked path developed by scholar recently, The structure program SAP 2000 V9.03 is used for numerical study, the prediction of retrofit device is simulated by simplifying for pure tension diagonals, which neglect the contribution of compression diagonals, the emphatic conclusion to be as follows after carrying out the experiments: 1. Brick arch failure mode:Cracks are separated into shear and flexural cracks, the shear and flexural crack of un-reinforced brick arch occur in arch angle 63o respectively and at the bottom of 3rd brick walls on both sides of opening. 2. The error of ultimate load prediction of un-reinforced brick arch: brick arch will be simplified to portal frame are used to preliminary estimation, in-plane stiffness which only provides from vertical frame, the average error between -20~20%;Structure program are used to simulate brick arch with shell elements analyzed, the average error between -15%~10%. 3. The error of ultimate load prediction after retrofitting:the error of structure program and preliminary estimation are between respectively 35~80% and 25~40%, the reason of error results from the slight deformation between the fixed beam relation with brick arch and reaction force base. 4. The impact of ultimate load after retrofitting:the ultimate load from cyclically loaded tests decrease by 12%, monotonically loaded tests increase by 20%, although it doesn’t increase in cyclically loaded tests, it enhances ductility of overall walls and avoids non-repairable cracks occurred as the view of retrofitted effectiveness. The results of in-plane loading test shows that the story drift angle of yield point is 3.8/1000, visible crack is 2.2/1000,it could succeed the function of warning point if adjusting the yield point before the drift angle 2.2/1000 with further improvement of low-yield steel afterward.
Tsai, Jui-Ting, and 蔡睿庭. "A Case Study of Beimen in Taipei about Seismic Behavior and Destruction of Masonry Historic Buildings." Thesis, 2019. http://ndltd.ncl.edu.tw/handle/7fppbk.
Повний текст джерела國立交通大學
土木工程系所
107
There are many brick-built historic buildings with historical and cultural values in Taiwan. If the engineer can properly understand the behavior of the brick building under the earthquake force, it can be used as the basis for the maintenance of the historical buildings and know well how to do the repair and protection. However, there are few studies to analyze the target's response under seismic force using computer modeling and simulation. The aim of this study is to use the ABAQUS software to simulate the response of the Beimen brick wall when subjected to seismic forces, and to find out what kind of damage control and where it is possible to destroy, as a reference for reinforcement or repair. The study first queries the relevant historical documents of the Beimen as the basis for modeling; and collects the material literature of brick building historical buildings, including the mechanical properties of red bricks, gray seams and interfaces, as a hypothesis of the material properties in this model. Then, based on the ABAQUS model, select two inputs of the seismic force that can make damage to the model, and analyze the linear behavior of the model under the seismic force. The analysis results show that the damage of the wall is controlled by variant strength type and intensity at different locations. According to the model damage situation, the places where cracks are easy to be generated are: the open corner of the inner wall, the upper brick wall of the outer wall door, the vertical intersection of the two walls, the intersection of the bottom of the brick wall and the top of arch; The upper and lower ends are subjected to the seismic force transmitted by the roof and the top of arch. In addition, the wall surface behavior is different from the seismic force in different directions, and the inner brick wall is mainly subjected to large shearing force. The upper edge of the wall opening is subject to greater deflection. The simulation results also revealed that the analysis of the behavior of the brick wall is consistent with the collected literature, and can be used as a reference for reinforcement or restoration.
Pan, Wei-Hung, and 潘偉弘. "Study on Seismic Assessment Methods and Experimental Tests on Historical Buildings with Masonry Walls." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/qbz9j8.
Повний текст джерела國立臺北科技大學
土木工程系土木與防災碩士班
105
In this paper, we mainly find out the appropriate assessment to carry out the seismic assessment of the brick structure. We used the brick wall experiment to simulate the damage behavior of the brick building under the axial force and the lateral force. And it compared with the brick-wall model constructed by the finite element. And then we used the finite element to build the subject model for static analysis and and dynamic analysis compare with the current situation. At the same time using existing assessment methods to assess the building, and to discuss the differences in the assessment methods. The results show that the finite element simulated results are similar to those of the building. Therefore, it is hoped that this finite element will provide the future engineers to analyze the brick building.
Romis, Federico, Walter Salvatore, Silvia Caprili, Tiago M. Ferreira, and Paulo Lourenço. "Development of innovative methods for the seismic risk classification of masonry aggregates." Doctoral thesis, 2021. http://hdl.handle.net/2158/1238605.
Повний текст джерела