SP预应力空心板楼盖性能探讨

介绍SP预应力空心板的特点及优越性，用有限元软件分析缝宽度及灌缝混凝土强度对SP预应力空心板楼盖平面刚度的影响规律，并对SPD叠合板性能作了简要介绍。计算结果表明，缝宽越小、灌缝混凝土强度越大，楼盖刚度越大，并且随着灌缝混凝土强度的增大，缝宽度的变化对楼盖刚度的影响逐渐减小。

APPROACHES TO PERFORMANCE OF SP PRE-STRESSED HOLLOW SLAB FLOOR

Introduction is given Finite element software is adopted to to the characteristics and advantages analyze the effect of joint width and of SP pre-stressed hollow slab floor. strength of joint-filling concrete upon the plane rigidity of the floor. And the behavior of SPD laminated hollow slab is also introduced in brief. Calculation results indicate that the narrower the joint, and the stronger the joint-filling concrete, the bigger the floor rigidity is. Moreover, as the strength of joint-filling concrete increases, the impact of the variation of ioint width on floor rigidity declines gradually.