【摘要】 通过对9根钢筋混凝土轴心受压柱和10根钢筋混凝土偏心受压柱进行单向加载试验研究分析,该文建议HRBF500钢筋在轴心受压柱和偏心受压柱中的强度设计值取为f y′=fy=420MPa;由试验数据可知,偏压构件的裂缝宽度值要相对小于受弯构件的裂缝宽度值,建议将规范公式中的钢筋混凝土偏压构件受力特征系数进行折减,提出了构件受力特征系数的建议值,为我国混凝土结构设计规范进一步修订时列入500MPa级钢筋提供了参考依据。更多还原

【Abstract】 Based on the uniaxial loading research on nine axially loded columns and ten eccentrically loaded reinforced concrete columns,the strength design value of HRBF500 is proposed to be taken as the value of 420MPa,in the axially and eccentrically loaded reinforced concrete columns.The test results show that the crack width of the eccentrically compressed members is lower than the flexural component members.Therefore,the force coefficient characteristics of the eccentrically compressed members are suggested to be reduced,and provides the recommended value of the force coefficient characteristics of components.This proposal may be as a reference for future revision of the Chinese Design Code.更多还原