装配式大跨径木质张弦梁结构安装数值仿真与监测技术

Numerical Simulation and Monitoring Technology for Installation of Prefabricated Long-span Timber Beam String Structure

浙江大学国际联合学院(海宁国际校区)一期综合体育馆为装配式大跨径木质张弦梁结构,主跨长45.6m,为国内首例。装配式大跨径木质张弦梁结构具有整体抗侧刚度弱、稳定性差、施工难度大等技术难点。通过对装配式大跨径木质张弦梁结构的安装数值模拟,预测大跨径木质张弦梁结构施工过程的结构受力与变形,与索力及结构形状的实时监控结果对比并及时进行纠偏,保证了施工完成态符合设计要求。

The comprehensive gymnasium of Haining International Campus of Zhejiang University of International Union College first phase uses the prefabricated long-span timber beam string structure with the main span of 45.6 meters,which is the first case in China.The fabricated long-span timber beam string structure has the technical difficulties such as weak lateral stiffness,poor stability,and difficult construction.Through the numerical simulation of the installation of the assembled long-span wooden beam string structure,the stress and deformation of the structure in the construction process of the longspan wooden beam string structure are predicted and compared with the real-time monitoring results of the cable force and corrected in time,so as to ensure that the construction status meets the design requirements.