混凝土强度对中强螺旋肋钢丝预应力空心板延性的影响  

Influence of concrete strength to the ductile property of precast prestressed concrete slab with mid-strength spiral-rib steel wire

作　　者：崔秀琴[1,2] 赵华玮[2] 吕世革 

机构地区：[1]武汉理工大学土木工程与建筑学院,湖北武汉430070 [2]焦作大学土木建筑工程学院,河南焦作454000 [3]焦作市科正建设工程造价咨询公司,河南焦作454000

出　　处：《混凝土》2010年第1期112-113,116,共3页Concrete

摘　　要：运用受弯构件全过程数值分析计算程序,在预应力混凝土空心板截面尺寸及荷载形式相同,配筋率、跨高比、张拉控制应力、钢筋强度等参数不变的情况下,改变混凝土强度,对中强螺旋肋钢丝预应力混凝土空心板进行受力全过程的数值分析,即采用数值分析方法,探讨了混凝土强度对中强螺旋肋钢丝预应力混凝土空心板延性的影响。The calculation procedure of numerical simulation was used and the whole process of loading bending slab was analysed, and the in- fluencing concrete strength to the ductile property ofprecast prestressed concrete slab with mid-strength spiral-rib steel wire was get from the ex- periment.In the process, changing the concrete strength, keeping the section and loading and some parameters constant, such as percentage of steel, span-height ratio, control tension stress, strength of reinforcing bars, and the conclusion can be get.

关 键 词：混凝土强度 中强螺旋肋钢丝 预应力混凝土空心板 延性破坏 

分 类 号：TU528.72[建筑科学—建筑技术科学]