本文選題：填充墻框架　切入點(diǎn)：等效桿　出處：《華南理工大學(xué)》2013年碩士論文　論文類型：學(xué)位論文

【摘要】：填充墻起著分隔房間的作用，普遍存在于框架結(jié)構(gòu)中。填充墻對框架結(jié)構(gòu)承載力和剛度具有重要影響已被普遍認(rèn)同，但目前設(shè)計(jì)仍把填充墻作為非結(jié)構(gòu)構(gòu)件，通過周期折減籠統(tǒng)考慮填充墻貢獻(xiàn)。在地震區(qū)，忽略框墻相互作用并不總是安全的，填充墻增大結(jié)構(gòu)剛度，同時(shí)也增大了地震作用。震害表明，填充墻豎向布置不規(guī)則可能造成結(jié)構(gòu)形成薄弱層而破壞，填充墻平面布置不規(guī)則可能造成結(jié)構(gòu)扭轉(zhuǎn)破壞，除了剛度效應(yīng)外，填充墻還會(huì)對主體結(jié)構(gòu)構(gòu)件產(chǎn)生約束效應(yīng)。填充墻在很大程度上影響著框架結(jié)構(gòu)抗震性能。 近年來，基于性能的抗震設(shè)計(jì)方法成為國內(nèi)外結(jié)構(gòu)抗震設(shè)計(jì)理論研究的熱點(diǎn)，考慮填充墻效應(yīng)后對框架結(jié)構(gòu)抗震性能的評估研究還處于初步階段，，仍需大量的研究工作。本文的主要工作如下： 1.對近60年來國內(nèi)外關(guān)于填充墻框架結(jié)構(gòu)的研究進(jìn)行了較系統(tǒng)的總結(jié)，包括填充墻對框架結(jié)構(gòu)承載力及剛度的影響及其相關(guān)影響因素，填充墻框架的破壞模式，填充墻框架的計(jì)算模型，對比分析了填充墻微觀模型和等效桿宏觀模型的優(yōu)缺點(diǎn)。 2.使用PERFORM-3D軟件對比不同學(xué)者提出的等效桿寬度計(jì)算公式的精確性，最終選取FEMA中采用的等效桿寬度計(jì)算公式，對一單層單跨實(shí)體填充墻框架和一單層單跨開洞填充墻框架低周往復(fù)試驗(yàn)進(jìn)行模擬分析，數(shù)值模擬結(jié)果與實(shí)驗(yàn)吻合較好。 3.按照現(xiàn)行規(guī)范設(shè)計(jì)不同跨度的填充墻框架結(jié)構(gòu)，使用Pushover靜力彈塑性分析方法研究了不同寬高比填充墻及不同填充墻布置對框架結(jié)構(gòu)抗震性能的影響。研究表明，不同寬高比填充墻對結(jié)構(gòu)抗側(cè)剛度和承載力提高程度不同，填充墻豎向不規(guī)則布置將形成薄弱層而破壞。 4.總結(jié)國內(nèi)關(guān)于填充墻框架梁柱構(gòu)件及填充墻變形性能指標(biāo)，給出填充墻框架抗震性能水準(zhǔn)劃分細(xì)則。提出應(yīng)根據(jù)結(jié)構(gòu)在不同地震水準(zhǔn)作用下實(shí)際受力情況動(dòng)態(tài)查詢構(gòu)件破壞形態(tài)，再查詢相應(yīng)破壞形態(tài)下構(gòu)件變形性能指標(biāo)限值以評估構(gòu)件性能。對7度和8度空框架、滿布填充墻框架、底部大空間填充墻框架進(jìn)行動(dòng)力彈塑性分析，根據(jù)結(jié)構(gòu)性能水準(zhǔn)與構(gòu)件性能水準(zhǔn)的關(guān)系，對不同填充墻布置的框架結(jié)構(gòu)抗震性能進(jìn)行評估。
[Abstract]:The infilled wall is widely used in the frame structure. It is generally accepted that the infilled wall has an important influence on the bearing capacity and stiffness of the frame structure, but the infilled wall is still regarded as a non-structural member in the design. The contribution of infill wall is generally considered by periodic reduction. In earthquake region, it is not always safe to ignore the frame-wall interaction. The infill wall increases the stiffness of the structure and also increases the seismic action. Irregular vertical arrangement of infilled walls may lead to the formation of weak layers and destruction of structures, and irregular layout of infilled walls may cause torsional damage of structures, except for stiffness effect. The infilled wall will also have a constraint effect on the main structural member, and the infilled wall will affect the seismic behavior of the frame structure to a great extent. In recent years, performance-based seismic design methods have become the focus of theoretical research on seismic design of structures at home and abroad. A lot of research work is still needed. The main work of this paper is as follows:. 1. The research on infilled wall frame structure has been systematically summarized in recent 60 years, including the influence of infilled wall on the bearing capacity and stiffness of frame structure and its related factors, and the failure mode of infilled wall frame. The advantages and disadvantages of the microcosmic model and the macroscopic model of the equivalent rod are compared and analyzed in the calculation model of the infilled wall frame. 2. Using PERFORM-3D software to compare the accuracy of the equivalent rod width calculation formula proposed by different scholars, and finally select the equivalent rod width calculation formula used in FEMA. The low cycle reciprocating tests of a single-story single-span solid infilled wall frame and a single-story single-span cavity infilled wall frame are simulated and analyzed. The numerical simulation results are in good agreement with the experimental results. 3. According to the current code, the influence of different ratio of width and height of infilled wall and different arrangement of infilled wall on seismic performance of frame structure is studied by Pushover static elastic-plastic analysis method. The lateral stiffness and bearing capacity of infilled walls with different ratio of width to height are different, and the vertical and irregular arrangement of filled walls will result in weak layers and failure. 4. Summarize the deformation performance indexes of Liang Zhu members and infilled walls in China. The detailed rules of seismic performance leveling of infilled wall frame are given. It is proposed that the failure form of the member should be dynamically inquired according to the actual stress situation of the structure under different earthquake leveling. In order to evaluate the component performance, the finite value of deformation performance index of the member in the corresponding failure form is inquired. The dynamic elastic-plastic analysis of the 7 degree and 8 degree empty frame, the full filled wall frame, the large space infilled wall frame at the bottom is carried out, and the dynamic elastoplastic analysis is carried out. According to the relationship between structural performance level and member performance level, the seismic performance of frame structures with different infilled walls is evaluated.
【學(xué)位授予單位】：華南理工大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2013
【分類號】：TU375.4;TU352.11

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