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塞内加尔国家剧院是一座能容纳1800人的甲等特大型歌剧院,结构体型复杂,内部空旷、跨度大,防火要求高。拟建工程场址地层土质分布极不均匀,荷载相差很大,根据工程场地的特殊性以两种性质孑然不同的土层作为联合持力层,采用梁板式筏形基础来调节基础的不均匀沉降。通过地基基础的协同分析,基础的差异沉降满足规范要求。剧场结构中观众厅长悬挑梁和屋顶大跨度预应力井字梁是结构设计的难点,对此分别进行了介绍,相关经验可供类似工程参考。
The National Theater of Senegal is a large extravagant Opera House that can accommodate 1,800 people. The structure is complex in shape and has an open interior, large span and high fire protection requirements. According to the particularity of the project site, two kinds of soil layers with different properties are taken as the joint holding layer, and the slab raft foundation is used to adjust the uneven foundation settlement. Through the foundation of the foundation of the collaborative analysis, the basis of differential settlement to meet the regulatory requirements. The auditorium chief cantilever beam and roof long-span prestressed well beam in the theater structure are the difficulties in the structural design, and are introduced separately. Relevant experience is available for reference to similar projects.