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Experimental study on horizontal shear crack control of prestressed corrugated composite beams

机译:预应力波纹复合梁水平剪切裂纹控制的实验研究

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In case the structure is exposed to the high temperature, the lateral shear crack is the major cause exposing the steel bar to the high temperature and also the major cause of the collapse of buildings. In the study, in order to control the lateral shear crack, the presterssing using strands in a reverse direction of the lateral shear crack has applied and the fire resistance test of the PS corrugated web composite beam has been carried out, produced in a corrugated type of the steel to increase the efficiency of the prestressing. As a result of the test, the lateral shear crack introducing the PS has been reduced but it has been concluded that in case the strands are failed, the brittle failure can be taking place.
机译:在该结构暴露于高温的情况下,横向剪切裂纹是将钢棒暴露于高温的主要原因以及建筑物崩溃的主要原因。在该研究中,为了控制横向剪切裂缝,使用沿横向剪切裂纹的相反方向的螺纹施加的抗剥离,并进行了PS波纹幅材复合梁的耐火试验,以瓦楞纸型制造钢材提高预应力的效率。作为测试的结果,引入PS的横向剪切裂纹已经减少,但已经得出结论,如果股线失效,可以进行脆性衰竭。

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