综合管廊简化计算方法  

Simplified calculation method for utility tunnel

作　　者：白旭峰 张晶[2] 王长祥 苏晓果 BAI Xu-Feng;ZHANG Jing;WANG Chang-Xiang;SU Xiao-Guo(North China Municipal Engineering Design & ResearchInstitute, Tianjin 300381, China;School of Civil Engineering,Heilongjiang University, Harbin 150080, China)

机构地区：[1]中国市政工程华北设计研究总院有限公司,天津300381 [2]黑龙江大学建筑工程学院,哈尔滨150080

出　　处：《黑龙江大学工程学报》2019年第2期29-32,共4页Journal of Engineering of Heilongjiang University

基　　金：黑龙江省自然科学基金资助项目(LC2017025);国家重点研发计划项目(2017YFC0805000,2017YFC0805002)

摘　　要：为了促进预制综合管廊进一步发展,提高综合管廊设计计算的准确性,在闭合框架模型的基础上,参照高层混凝土框架结构,增加角部刚域部分。采用ANSYS有限元软件,建立综合管廊实体单元模型和带刚域的梁单元模型,研究不同刚域长度情况下,带角部刚域闭合框架模型与实体单元模型之间弯矩和变形的关系。结果表明不考虑刚域的弯矩计算结果偏大,结构整体刚度降低。角部刚域长度可以近似取0.75顶板厚度。To facilitate the application of utility tunnel and to improve the accuracy of design calculation, this study introduces rigid zone to the corner region based on the closed frame model. A solid model and a simplified beam model with rigid zone are created with a FEM software ANSYS. The intent of study is to numerically investigate the relationship between the bending moment and deformation from these two models. Simulation results show that the bending moment is larger when the rigid zone is not considered, which lead to the reduction of the structural stiffness. Furthermore, the length of this rigid zone can be calculated as 0.75 times the thickness of the ceiling.

关 键 词：综合管廊 刚域 闭合框架 简化计算方法 

分 类 号：TU990[建筑科学—市政工程]