【摘要】：現(xiàn)今單層工業(yè)廠房的抗震研究多集中于廠房的橫向抗震。但幾次大震震害表明,廠房的縱向抗震同樣不容忽視�！督ㄖ拐鹪O(shè)計(jì)規(guī)范》在第9.1.8中對(duì)廠房的縱向抗震計(jì)算做出規(guī)定,但是與該規(guī)范第5.2.6中做出的規(guī)定在縱向水平地震作用的分配方式的采用上存在不相符的地方。 本文以單層工業(yè)廠房縱向抗震為研究主題,通過(guò)對(duì)模型的模擬分析,尋求單層工業(yè)廠房縱向抗震計(jì)算合理的計(jì)算方法。本文利用SAP2000軟件,針對(duì)不同的廠房形式建立不同的模型,通過(guò)對(duì)模型進(jìn)行反應(yīng)譜分析和時(shí)程分析,提取柱間支撐內(nèi)力進(jìn)行對(duì)比分析,得出結(jié)論：預(yù)制板單層工業(yè)廠房或有內(nèi)天溝廠房在進(jìn)行縱向抗震計(jì)算時(shí),屋蓋產(chǎn)生的水平地震作用宜按照抗側(cè)力構(gòu)件從屬面積上重力荷載代表值的比例分配。對(duì)于未按照該計(jì)算方法進(jìn)行設(shè)計(jì)建造的廠房,在遭遇罕遇地震時(shí)很有可能發(fā)生嚴(yán)重的破壞,針對(duì)這種情況,本文建議在柱間支撐增設(shè)粘滯阻尼器來(lái)增強(qiáng)廠房縱向抗震能力。本文建立新的帶有粘滯阻尼器的模型,通過(guò)對(duì)新模型的計(jì)算分析,發(fā)現(xiàn)該種加強(qiáng)方式能很好的減小廠房在地震作用下發(fā)生的破壞,是一種有效的加強(qiáng)方法。
[Abstract]:Nowadays, the seismic research of single-story industrial buildings is mainly focused on transverse seismic resistance. However, the earthquake damage of several major earthquakes shows that the longitudinal seismic resistance of the factory building should not be ignored. The Code for Seismic Design of buildings stipulates the longitudinal seismic calculation of the building in 9.1.8. However, there are some inconsistency with the regulation of 5.2.6 in the application of vertical horizontal seismic action distribution mode. In this paper, the longitudinal earthquake resistance of single-story industrial factory buildings is taken as the research topic. Through the simulation and analysis of the model, a reasonable calculation method for longitudinal seismic calculation of single-story industrial buildings is sought. In this paper, SAP2000 software is used to establish different models for different workshop forms. Through the analysis of response spectrum and time history of the model, the internal forces of support between columns are extracted for comparative analysis. It is concluded that the horizontal seismic action produced by the roof should be distributed according to the gravity load representative value on the dependent area of the lateral force member in the longitudinal seismic calculation of the prefabricated single-story industrial factory building or the factory building with inner gutter. For the factory buildings which are not designed and constructed according to the calculation method, serious damage may occur in the event of rare earthquakes. In view of this situation, it is suggested that viscous dampers should be added to the braces between columns to enhance the longitudinal seismic capacity of the buildings. In this paper, a new model with viscous dampers is established. Through the calculation and analysis of the new model, it is found that this kind of strengthening method can reduce the damage of the powerhouse under earthquake and is an effective strengthening method.
【學(xué)位授予單位】：北京交通大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2013
【分類號(hào)】：TU375;TU352.11

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本文編號(hào)：2340027