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(武漢理工大學(xué)土木工程與建筑學(xué)院，  武漢 430070)

［摘要］為了驗(yàn)證地鐵車輛段新型隔振支座的設(shè)計(jì)方法及性能，基于已研發(fā)的新型隔振支座開展了試驗(yàn)和數(shù)值模擬方面的研究工作。首先推導(dǎo)了該新型隔振支座的剛度計(jì)算公式并使用試驗(yàn)和數(shù)值模擬結(jié)果驗(yàn)證了該公式的正確性，同時(shí)提出了考慮抗震安全性的結(jié)構(gòu)隔振設(shè)計(jì)方法； 然后以某地鐵車輛段實(shí)際工程為背景，對(duì)該新型隔振支座的隔震性能進(jìn)行了評(píng)價(jià)。結(jié)果表明：與非隔振結(jié)構(gòu)相比，隔振結(jié)構(gòu)各樓層的層間剪力、加速度峰值和層間位移角均有明顯降低，在多遇和罕遇地震作用下的層間位移角均小于規(guī)范限值，具有較大的安全儲(chǔ)備； 在罕遇地震作用下，隔振支座自身不會(huì)發(fā)生破壞。

［關(guān)鍵詞］隔振支座； 地鐵車輛段； 豎向剛度； 地震作用

中圖分類號(hào)：TU352-1文獻(xiàn)標(biāo)識(shí)碼：A文章編號(hào)：1002-848X(2020)23-0097-07

Design and engineering applications of a new isolation bearing for a metro depot

SUN Liangming, LI Guohao, HUANG Wei, XIE Weiping

(School of Civil Engineering and Architecture, Wuhan University of Technology, Wuhan 430070, China)

Abstract:In order to verify the design method and  performance of a new isolation bearing for a metro depot, the experiment and numerical simulation were carried out based on the developed new isolation bearing. Firstly, the stiffness calculation formula of the new isolation bearing was deduced and the experimental and numerical simulation results were used to verify the correctness of the formula. At the same time, the structural vibration isolation design method considering the seismic safety was proposed. Then, based on the actual project of a metro depot, the isolation performance of the new isolation bearing was evaluated. The results show that the interlayer shear force, peak acceleration, and inter-story drift angle of each floor of the vibration isolation structure are significantly lower than those of the non-isolation structure. The displacement angles under frequent earthquakes and rare occurrence earthquakes are all lower than the specified limit values, and they have large safety reserves. The isolation bearing itself will not be damaged under rare occurrence earthquakes.

Keywords:isolation bearing; metro depot; vertical stiffness; earthquake action

*國(guó)家自然科學(xué)基金青年基金項(xiàng)目資助（51608410），中央高校基本科研業(yè)務(wù)費(fèi)資助（2019Ⅲ108CG，2017IVB047）。

作者簡(jiǎn)介：孫亮明，博士，副教授，Email: sunliangming@126.com。