CFRP索悬挂结构试点工程施工力学分析

Mechanical Analysis of Construction on the CFRP Cable Suspended Structure Pilot Project

悬挂建筑结构具有良好的抗震性能和空间灵活性,但作为其主要受力部件的钢索,则常易出现锈蚀、疲劳等问题,为此,将高强CFRP筋制成索代替预应力钢筋用于悬挂建筑结构,设计了一幢全CFRP索悬挂建筑结构,分析了其拟定施工过程主要构件的受力和变形情况,并与一次加载的结果进行对比。研究表明,本文对设计的CFRP索悬挂建筑结构进行的施工模拟分析是必要的,可以较为准确地反映恒载作用下结构的内力分布。

The suspended structure has a good seismic performance and space flexibility,but as its main force components,the cable is often prone to corrosion,fatigue etc. In order to solve these problems,high-strength CFRP tendons instead of pre-stressing steel made of rope are used in suspended structure.A whole CFRP cable suspended structure is designed,and then the force and deformation of main components in the construction process are analyzed,which is compared with loading time. The results show that sequential construction analysis can reflect the inner force distribution accurately under the dead load,which proves the necessity of the structural mechanical behavior model.