EXPERIMENTAL RESEARCH ON DEFORMATION OF REINFORCED CONCRETE BEAM WITH HRBF500 STEEL BARS
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摘要: 对3根HRBF500级钢筋混凝土梁进行受弯性能试验,研究发现,其变形特点和破坏形态与普通钢筋混凝土梁基本一致。基于已有500 MPa钢筋数据分析可知,HRBF500级钢筋混凝土梁挠度变化规律与HRB500级一致,正常使用下梁的挠度实测值均与规范值吻合较好,但实测值普遍偏大。建议将500 MPa级钢筋混凝土梁的短期刚度乘以系数0.95后计算挠度。
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关键词:
- HRBF500级钢筋 /
- 刚度 /
- 变形 /
- 正常使用极限状态
Abstract: Based on the experiment on 3 simple beams reinforced with HRBF500 steel bars,the flexual behavior is studied.The research indicate that deformation characteristics and failure pattern are basically in accord with the common beams.The measured deflection of HRBF500 beams is well agreed with the code value and is relatively large in general,as well as HRB500 beams,based on the data of 500 MPa steel bars.It is suggest that short-time stiffness be multiplied by coefficient 0.95 for calculating deflection.-
Key words:
- HRBF500 steel bar /
- stiffness /
- deformation /
- ultimate state of serviceability
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