基于结构健康监测的大直径球体高层支撑钢结构施工全过程性能评估
Whole Process Construction Performance Evaluation for Large-Diameter Spherical High-Rise Supported Steel Structure Based on Structural Health Monitoring
王毅飞 1罗晓群 1李建全 2赵胡 2王伟1
作者信息
- 1. 同济大学土木工程学院,上海 200092
- 2. 中国五冶集团上海有限公司,上海 201900
- 折叠
摘要
基于结构性态健康监测系统数据,对大直径球体高层支撑钢结构体系进行施工全过程的结构监控.根据结构设计超限情况,进行了不同传感器的测点布设,建立了以应力、应变、倾角位移和温度传感器为基础的结构健康监测系统;结合结构全施工过程模拟分析,对比评价了构件及结构体系在各施工阶段的应力和变形,并分析了球体顶部穹顶结构提升过程中结构的力学性态变化.根据模拟分析结果,结合监测系统采集的实测数据,验证了施工期构件及结构体系的安全性,评价了施工全过程环境温度对结构性能的影响,体现了结构健康监测对异形复杂建筑结构施工控制的有效性.
Abstract
A large-diameter spherical high-rise supported steel structure system is structurally monitored during the whole construction process using the data from a structural health monitoring system.A structural health monitoring system based on stress,strain,inclination displacement,and temperature sensors is established in accordance with the limit condition of structural design.When combined with the simulation analysis of the entire construction process of the structure,the stress and deformation of the components and the structural system in each construction stage are compared and evaluated,and the measurability of each construction stage is calculated.The safety of structural components and systems during the construction period is confirmed based on the results of the simulation analysis,in conjunction with the measured data gathered by the monitoring system.Also,the impact of environmental temperature on structural performance throughout the entire construction process is evaluated.The efficiency of structural health monitoring is exhibited on the construction control of specially shaped complex building structures.
关键词
结构健康监测/施工阶段/球体支撑钢结构/提升施工/施工全过程Key words
structural health monitoring/construction stage/spherical supporting steel structure/lifting construction/whole construction process引用本文复制引用
基金项目
中国中冶重大研发项目(中冶科[2021]5号)
出版年
2024
国家科技期刊平台
NSTL
万方数据