摘要
以南宁江南万达广场A1A4大跨度悬挑桁架结构为工程实例,对施工过程中的钢筋应力、混凝土应变、挠度等参数进行监测;并采用有限元软件对大跨度悬挑混凝土桁架结构进行施工过程数值模拟。通过图表等形式对比分析结构模拟值与监测值的差异,得出施工过程中结构内力、挠度等的变化规律,论证了大悬挑混凝土桁架结构的安全性和稳定性。
Taking the large-span cantilevered truss structure of Nanning Jiangnan Wanda Plaza A1 A4 as engineering example, the steel bar stress, concrete strain and deflection during construction are monitored. Meanwhile,the large-span cantilevered concrete truss structure is simulated by finite element software. Through the chart analysis of structure form and the monitoring value of difference,the monitoring and simulation values are compared,and the construction process,the change rule of structure internal force and deflection are put forward,which demonstrate the security and stability of the largespan cantilevered concrete structure.
作者
杨武勇
李卫
YANG Wuyong;LI Wei(China Building the Fourth Construction Bureau Co. , Ltd. , Guiyang, Guizhou 550000, China;School of Civil Engineering, Anhui University of Science ＆ Technology, Huainan, Anhui 232001, China)
出处
《施工技术》
CAS
2018年第3期17-19,43,共4页
Construction Technology
关键词
混凝土
桁架
悬挑
数值模拟
监测
施工技术
concrete
trusses
cantilever
simulation
monitoring
construction
