静载作用下的预应力空心板单梁受力试验分析

以实桥为工程依托,进行了空心板单梁试验,并应用Midas Civil有限元软件建立空心板单梁模型,模拟单梁静力加载过程,对比分析空心板梁挠度及控制截面应力,结果表明:空心板梁在试验静力荷载作用下,挠度满足设计使用要求,应力状态合理,沿梁高线性变化,空心板梁受力安全。

The analysis of prestressed concrete hollow slab beam under the static test load

Based on an actual bridge as the project background,did the hollow slab single static test,establishing the finite element model of hol-low plate beam by Midas Civil,simulation of single beam static loading process,analysis of deflection and stress of the beam,the results show that the hollow plate beam’s deflection meet design and use requirements,the stress state was reasonable,the stress variation along the beam high linear under the static test load,structure is safe.