太原理工大学学报2025，Vol.56Issue(2)：235-245,11.DOI:10.16355/j.tyut.1007-9432.20230335
某单层铝合金网壳结构施工过程的关键问题研究
Research on Key Problems in the Construction Process of a Single-layer Aluminum Alloy Lattice Shell Structure
摘要
Abstract
[Purposes]To solve the key problems in the field construction of the first single-layer aluminum alloy lattice shell structure in Shanxi Province,the interaction analyses between the 12.9 m cantilever canopy structure at the lower part and the 58.3 m diameter single-layer aluminum alloy lat-tice shell structure at the upper part are carried out.[Methods]According to the conditions of the con-struction site,FE model of construction process was established and the comparative analysis of four kinds of jacking point layout scheme were carried out.[Findings]The layout scheme of"only 12 jack-ing points in a single circle"is determined.When the diameter of the horizontal projection circle of the jacking point is 0.6 times the diameter of the horizontal projection circle of the reticulated shell,the jacking scheme is the best.Through the simulation analysis of synchronous jacking,the jacking sup-port is selected and the temporary construction measures of jacking points are given.The initial tight-ening torque of stainless-steel bolts is determined to be 27 N·m by calculation,and the temporary measures for the lattice shell notch during the first jacking are given.Through the analyses of the"sus-pended"latticed shell,the installation sequence and relevant temporary measures of the members be-fore and after the completion of the latticed shell are obtained.According to the meteorological data in recent 9 years and the construction months of the latticed shell,11.3℃is selected as the theoretical"closure"temperature of the latticed shell structure,and the influences of temperature rise and drop on the internal force and deformation of the latticed shell are analyzed.The research results of this pa-per can provide reference for the construction scheme of aluminum alloy shell.关键词
铝合金/单层网壳/不锈钢螺栓/安装顺序/同步顶升/支座固定Key words
aluminum alloy/single-layer lattice shell structure/stainless-steel bolts/installation sequence/synchronous jacking/abutment fixation分类
建筑与水利引用本文复制引用
郝贤哲,武启宇,闫亚杰,陈冉,王时贵,郭昱,张泽平..某单层铝合金网壳结构施工过程的关键问题研究[J].太原理工大学学报,2025,56(2):235-245,11.基金项目
山西省自然科学基金面上项目(2022030212111761) （2022030212111761）
