摘要
结合地铁盾构地下连续墙钢筋笼吊装案例,采用数值计算方法模拟了工程中钢筋笼吊装过程的受力状态,分析了钢筋笼水平、倾斜、竖向3种典型吊装工况下,吊装过程中的竖向变形、轴力、应力与应变的最大值与分布规律。计算表明水平吊装时竖向变形最大,位于最大吊装点间距的中部;轴力、应力与应变大于倾斜吊装的对应值,小于竖向吊装的对应值;竖向吊装时变形较小,轴力、应力与应变为3种工况中最大。
Combined with the case of reinforcement cage hoisting of Metro diaphragm wall,the stress state of reinforcement cage hoisting is simulated by numerical calculation method,and the maximum value and distribution law of vertical deformation,axial force,stress and strain in the hoisting process are analyzed under three typical hoisting conditions of reinforcement cage:horizontal,inclined and vertical.The calculation shows that the vertical deformation is the largest during horizontal lifting,which is located in the middle of the maximum lifting point spacing.The axial force,stress and strain are greater than the corresponding values of inclined lifting,but smaller than the corresponding values of vertical lifting.The deformation is small during vertical lifting,and the axial force,stress and strain are the largest of the three working conditions.
作者
朱六兵
连杰
刘宗羲
刘旭强
李炜明
肖当
ZHU Liu-bing;LIAN Jie;LIU Zong-xi;LIU Xu-qiang;LI Wei-ming;XIAO Dang(Guangzhou Metro Corporation Limited,Guangzhou 510330,China;School of Civil Engineering and Architecture,Wuhan Polytechnic University,Wuhan 430023,China;China Railway Construction South China Corporation Limited,Guangzhou 510330,China;China Railway 22nd Bureau Group Rail Engineering Corporation Limited,Beijing 100040,China)
出处
《建材世界》
2023年第3期71-75,共5页
The World of Building Materials
关键词
地铁施工
地下连续墙
钢筋笼
吊装
数值模拟
metro construction
underground diaphragm wall
reinforcing cage
lifting
numerical simulation
