配置HRB600非预应力钢筋的有粘结预应力混凝土梁受弯试验研究

发布时间：2018-06-11 19:36

本文选题：HRB钢筋 + 有粘结预应力混凝土　；参考：《建筑科学》2016年11期

【摘要】：通过配置HRB600非预应力钢筋的有粘结预应力混凝土梁受弯试验,分析了试验梁的受弯性能和裂缝开展规律、HRB600钢筋应变和混凝土应变,讨论了现行《公路钢筋混凝土及预应力混凝土桥涵设计规范》中抗弯承载力计算公式的适用性。试验结果表明:配置HRB600非预应力钢筋的有粘结预应力混凝土梁受力性能良好,可以按照现行规范计算抗弯承载力,且具有足够的安全储备。HRB600钢筋与预应力钢绞线能够协同工作,有效提高试验梁的抗弯承载力。
[Abstract]:Based on the flexural tests of bonded prestressed concrete beams with HRB600 unprestressed bars, the flexural behavior and crack development regularity of the test beams are analyzed, and the strain of reinforcement and concrete of HRB600 is analyzed. The applicability of the calculation formula of flexural bearing capacity in the current Design Code for reinforced concrete and Prestressed concrete Bridges and culverts of Highway is discussed. The test results show that the bond prestressed concrete beam with HRB600 unprestressed steel bar has good mechanical performance, and can calculate the flexural capacity according to the current code, and has sufficient safety reserve. HRB600 steel bar and prestressed steel strand can work together. The flexural bearing capacity of the test beam is improved effectively.
【作者单位】：河北工业大学土木工程学院;唐山学院土木工程学院;
【基金】：河北省高等学校科学技术研究重点项目(ZD2010123) 河北省交通运输厅科技计划项目(Y-2011052);河北省交通运输厅科技计划项目(Y-2012041) 河北省建设科学技术研究计划(2014-123)
【分类号】：TU378.2

【相似文献】