论文部分内容阅读
在钢筋混凝土扁梁中掺入钢纤维,可有效提高扁梁的抗弯初裂强度及抗弯极限强度。本文通过6根钢纤维混凝土扁梁的弯曲试验,研究在弯曲荷载下的破坏形态及钢纤维含量对受弯性能的影响,着重分析对比了不同试件受力过程、裂缝开展情况、破坏情况和钢纤维的拉结咬合作用,并进行正截面承载力验算,将试验数据与现行纤维混凝土规程(CECS38:2004)对比,验证了CECS38:2004对钢纤维混凝土扁梁的适用性。
The incorporation of steel fiber into the flat beam of reinforced concrete can effectively improve the flexural strength and flexural ultimate strength of the flat beam. In this paper, the bending test of six flat steel beams of steel fiber reinforced concrete is carried out to study the failure modes under bending load and the influence of steel fiber content on the bending performance. Emphasis is placed on analyzing and comparing the stress process, fracture development and damage of different specimens Steel fiber lashing bite action, and carrying out cross section bearing capacity checking, comparing the test data with the existing fiber concrete code (CECS38: 2004), verifying the applicability of CECS38: 2004 to steel fiber reinforced concrete flat beam.