地库顶板结构形式经济性对比分析

摘要

通过PKPM结构设计软件，对比分析了井字次梁、单向双次、单向单次、大板加腋（中部250 mm）、大板300 mm五种地库顶板结构梁板布置形式的综合造价，为同类地库选择合理的梁板布置形式提供参考依据。%Through PKPM structural design software,the paper comparatively analyzes five kinds of basement roof structure beam distribution cost of crossing-secondary beam,one-way twice,one-way once,big board with arm(250 mm of central part),300 mm of big board,which has pro-vided some guidance for rationally selecting basement beam board distribution forms.