地下车行系统异形连接段的变形规律研究  

Research on Deformation Law of Shaped Connection Section of Underground Vehicular System

作　　者：刘晓凤 杨冬末 何丹 LIU Xiaofeng;YANG Dongmo;HE Dan(School of Civil Engineering,City University of Hefei,Hefei Anhui 230601;Anhui Tianrun Construction Group Co.,Ltd.,Hefei Anhui 230601)

机构地区：[1]合肥城市学院土木工程学院,安徽合肥230601 [2]安徽天润建筑工程集团有限公司,安徽合肥230601

出　　处：《湖北理工学院学报》2023年第4期32-35,51,共5页Journal of Hubei Polytechnic University

基　　金：安徽省教育厅教学研究重点项目(项目编号:2022AH052467);安徽省高等学校省级质量工程项目(项目编号:2022cxtd114);合肥城市学院自然科学、人文社会科学研究重点项目(项目编号:CSZR202206)。

摘　　要：为了研究地下车行系统中异形连接段的变形规律,以江西某市政配套项目为工程背景,开展了数值对比试验,研究了不同支护方式下结构变形规律。结果表明,采用50 cm厚C40混凝土+直径4 m的混凝土柱作为主要支撑体系时,顶板最大沉降值为7.3 mm,加固方式可靠合理;当混凝土支护强度等级从C40降到C35时,地下车行系统的关键部位变形值很小,说明在结构变形能得到有效控制的前提下,适当降低混凝土等级是可行的。In order to study the deformation law of shaped connection section in the underground vehicular system,numerical comparison tests were conducted to study the deformation law of the structure under different support methods by taking a municipal supporting project in Jiangxi as the engineering background.The results show that when 50 cm thick C40 concrete and 4 m diameter concrete column is used as the main support system,the maximum settlement value of the top slab is 7.3 mm,and the reinforcement method is reliable and reasonable;when the strength grade of concrete support is reduced from C40 to C35,the deformation value of the key parts of the underground vehicular system is very small,indicating that it is feasible to reduce the concrete grade under the premise that the structural deformation can be effectively controlled.

关 键 词：地下车行系统 异形连接段 数值计算 变形规律 

分 类 号：TU942[建筑科学—建筑技术科学]