摘要
由于空间钢结构具有跨度大、阻尼小、自振频率低等特点,风荷载及温度荷载已经成为结构设计的控制荷载。通过风洞数值模拟,可为设计提供结构表面风压分布和风振系数,建立出建筑风荷载模型;通过对钢结构关键构件进行监测并综合利用多项结构性能指标,可以实现结构性能评价与安全性预警、建立出的结构健康档案可以对结构进行病态综合性诊断,为建筑物维护提供可靠依据。基于以上研究,开发了一套季风气候区大跨空间结构的通用健康监测平台,提升大跨空间结构领域的核心技术,为大跨空间结构的安全施工及运营保驾护航。
As spatial steel structures have the characteristics of large span,small damping and low natural frequency,wind load and temperature load have become the control loads for structural design.Through the wind tunnel numerical simulation,the wind pressure distribution and wind vibration coefficient on the structure surface can be provided for design,and the wind load model of building can be established.By monitoring the key components of the steel structure and comprehensively using multiple structural performance indicators,the structural performance evaluation and early safety warning can be achieved.The established structural health records can carry out a comprehensive diagnosis of the vulnerable structure,providing a reliable basis for building maintenance.Based on the above research,a set of general health monitoring platform for large-span spatial structures in monsoon climate region has been developed to improve the core technology in the field of large-span spatial structures and ensure the safe construction and operation of large-span spatial structures.
作者
范蒙飞
李大为
周春娟
张冲
柳明亮
王雪婷
魏超琪
高元
吴鹏
FAN Mengfei;LI Dawei;ZHOU Chunjuan;ZHANG Chong;LIU Mingliang;WANG Xueting;WEI Chaoqi;GAO Yuan;WU Peng(SCEGC No.9 Construction Engineering Group Company Ltd.,Yulin,Shaanxi 719000,China;Shaanxi Academy of Building Sciences Co.,Ltd.,Xi'an,Shaanxi 710082,China)
出处
《建筑施工》
2022年第11期2762-2765,共4页
Building Construction
关键词
钢结构
季风气候
温度作用
数值模拟
健康监测
steel structure
monsoon climate
temperature effect
numerical simulation
health monitoring