短肢墙预应力楼盖体系墙端弯矩增大系数的试验

Experimental Researthes of Flexural Strength Coefficient of Short Structure Wall with Unbonded Prestressed Floor System

通过对短肢剪力墙无粘结预应力楼盖结构体系2个顶层梁、墙肢、预应力现浇板组合体的试验研究,分析了结构体系中现浇板、受扭连梁等对短肢墙墙端弯矩增大系数的影响。利用电算分析对试验研究结果进行补充和完善,最后建议对该结构体系进行设计时,短肢墙墙端弯矩增大系数应比现行规范相应提高。

By means of revered cycle loading tests on the two specimens of short shear wall and unbonded prestressed floor system, the authors analyze the effect on the flexural strength coefficient between walls and beams of cast-in-placed slab and torsion beam. It complements the test results in terms of computer analysis. It brings forward some design method that the flexural strength ratio in this dimension structure system should be amplified than the criterion.