本文選題：既有建筑 + 結(jié)構(gòu)可靠度��； 參考：《河北工業(yè)大學(xué)》2015年碩士論文

【摘要】：通過對華北地區(qū)某小學(xué)進(jìn)行檢測和數(shù)據(jù)整理,利用有限元分析軟件Midas/GEN建立結(jié)構(gòu)整體模型,得到結(jié)構(gòu)基礎(chǔ)隔震前后的周期、位移、剪力、加速度等數(shù)據(jù),并對其進(jìn)行對比分析;根據(jù)考慮變量分布類型的一次二階矩計(jì)算方法對結(jié)構(gòu)構(gòu)件的可靠度進(jìn)行計(jì)算,利用構(gòu)件權(quán)函數(shù)計(jì)算得出結(jié)構(gòu)整體可靠度,分別對其進(jìn)行對比分析。結(jié)果表明:1.既有建筑中墻體單元可靠度在結(jié)構(gòu)整體可靠度計(jì)算中占比重較大;隔震加固能夠明顯提高既有建筑結(jié)構(gòu)構(gòu)件可靠度,采用考慮結(jié)構(gòu)權(quán)函數(shù)的方法計(jì)算結(jié)構(gòu)整體可靠度,能夠避免過高估計(jì)隔震結(jié)構(gòu)加固后結(jié)構(gòu)整體可靠度。2.隔震加固能夠明顯提高既有建筑中高厚比較大的墻體的可靠度,并且能減小不同高厚比墻體的可靠度之間的差距,有利于提高結(jié)構(gòu)整體可靠性。3.隔震加固能夠減小既有建筑上部結(jié)構(gòu)對地震作用的放大,更利于提高結(jié)構(gòu)的可靠性。
[Abstract]:Through testing and data processing of a primary school in North China, the whole structure model is established by using the finite element analysis software Midas / Gen, and the data of period, displacement, shear force and acceleration before and after isolation of structure foundation are obtained, and the data are compared and analyzed. The reliability of structural members is calculated according to the first-order second-order moment calculation method considering the type of variable distribution. The overall reliability of the structure is calculated by using the component weight function, and the reliability of the whole structure is compared and analyzed respectively. The result shows that 1: 1. In the existing building, the reliability of the wall unit occupies a large proportion in the calculation of the overall reliability of the structure, the seismic isolation and reinforcement can obviously improve the reliability of the existing building structure, and the method of considering the weight function of the structure is used to calculate the overall reliability of the structure. It can avoid overestimating the overall reliability of reinforced isolated structures. Seismic isolation and reinforcement can obviously improve the reliability of the wall with high thickness and large thickness in existing buildings, and can reduce the gap between the reliability of walls with different ratio of height to thickness, which is helpful to improve the overall reliability of the structure. Seismic isolation and reinforcement can reduce the magnification of the seismic action of the superstructure of the existing building and improve the reliability of the structure.
【學(xué)位授予單位】：河北工業(yè)大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2015
【分類號】：TU352.12

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本文編號：2002235