(1 福州大学土木工程学院, 福州 350108; 2 中国电建集团江西省电力设计院有限公司, 南昌 330096;3 福州市城乡建总集团有限公司, 福州 350007)

摘要: 为维护城市道路通畅、管道布局合理,新型地下结构预制综合管廊应用逐渐广泛. 地震灾害可能会对综合管廊结构造成不可忽视的破坏,使城市经济发展和资源安全受到严重威胁. 以福州市马尾区地下预制综合管廊项目为原型,采用双折线模型简化模拟综合管廊接头遇水膨胀橡胶的压缩曲线,不考虑结构与土体间的摩擦滑移,建立三维预制综合管廊-接头-场地土的地震动响应分析模型. 首先考虑刚性连接和柔性连接的两种接头形式,研究不同接头连接刚度对综合管廊地震响应的影响;其次通过改变视波速大小实现行波效应,研究不同视波速下,不同预制标准节段长度拼接的综合管廊结构在不同接头位置的地震响应. 结果表明,行波效应和预制标准节段长度变化均对预制综合管廊结构的地震响应存在显著影响,随着预制标准节段长度的增大,接头处的地震响应随之增大.

关键词: 预制综合管廊; 接头连接形式; 行波效应; 抗震性能; 预制标准节段长度

中图分类号:TU441. 2 文献标志码:A 文章编号:1002-848X(2022)03-0057-10

DOI:10. 19701 / j. jzjg. LS210058

Seismic response analysis of prefabricated comprehensive pipe gallery-joint-site soil

GU Yin1, QIU Shirong1, XIONG Mengting2, YU Bolin3, LIN Caiqiang3

(1 College of Civil Engineering, Fuzhou University, Fuzhou 350108, China;2 PowerChina Jiangxi Electric Power Engineering Co., Ltd., Nanchang 330096, China;3 Fuzhou Urban and Rural Construction Group Co., Ltd., Fuzhou 350007, China)

Abstract: In order to maintain the smooth flow of urban roads and reasonable pipeline layout, the new undergroundstructure prefabricated comprehensive pipe gallery is gradually widely used. Earthquake disasters may cause non-negligibledamage to the comprehensive pipe gallery structure, which severely threatens urban economic development and resourcesecurity. Taking the underground comprehensive pipe gallery project in Mawei district, Fuzhou city as the prototype, thecompression curve of water-expanded rubber in prefabricated comprehensive pipe gallery joints was simply simulated withdouble broken line model, and the ground vibration response analysis model of three-dimensional prefabricatedcomprehensive pipe galler-joint-site soil was established without considering the friction and slippage between structure andsoil. First, considering the two joint forms of rigid connection and flexible connection, the effect of different jointconnection stiffness on the seismic response of the comprehensive pipe gallery was studied. Secondly, the traveling waveeffect was realized by changing the apparent wave speed, and the seismic response of the joints at different positions of thecomprehensive pipe gallery with different prefabricated standard segment lengths was studied under different traveling wavespeeds. The results show that both the traveling wave effect and the change in the length of the prefabricated standardsegment have a significant impact on the seismic response of the prefabricated comprehensive pipe gallery structure. As thelength of the prefabricated standard segment increases, the seismic response at the joint will increase accordingly.

Keywords:prefabricated comprehensive pipe gallery; joint connection form; traveling wave effect; seismic performance;prefabricated standard segment length

∗国家自然科学基金面上项目(51578157) .

第一作者:谷音,博士,教授,博士生导师,主要从事桥梁与地下结构的相关研究,Email:cinoa@ fzu. edu. cn.

[引用本文] 谷音,邱诗榕,熊梦婷,等. 预制综合管廊-接头-场地土地震响应分析[ J] . 建筑结构,2022,52( 3) :57-66. GU Yin, QIU Shirong, XIONG Mengting, et al. Seismic response analysis of prefabricated comprehensive pipegallery-joint-site soil[ J] . Building Structure,2022,52(3) :57-66.