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fck(N/mm2)13.416.720.123.426.829.632.435.538.5ftk(N/mm2)1.541.782.012.22.392.512.642.742.85fc(N/mm2)9.611.914.316.719.121.123.125.327.5ft(N/mm2)1.11.271.431.571.711.81.891.962.04EC(×104N/mm2)2.552.833.153.253.353.453.553.6钢筋强度等级fy(N/mm2)fy(N/mm2)EC(×104N/mm2)C20C25C30C35C40C45C500.0020.002120.002380.002620.002850.0030.003150.0020.0020.002150.002360.002570.00270.002840.0020.0020.0020.0020.002140.002250.00236≤C50C55C60C65C70C75C800.5760.5660.5560.5470.5370.5280.5180.550.5410.5310.5220.5120.5030.4930.5180.5080.4990.490.4810.4720.4630.4820.4730.4640.4550.4470.4380.429γRE0.750.750.80.850.850.851梁的最小配筋率混凝土强度标准值、设计值及弹性模量钢筋强度设计值及弹性模量HPB300HRB335、HRBF335HRB400、HRBF400、RRB400HRB500、HRBF500C50C55C6043541022.1270300360HRB500、HRBF5000.002注：最小配筋率根据0.45ft/fy和0.2%的较大者算出界限相对受压区高度HPB300HRB335、HRBF335HRB400、HRBF400、RRB400各类构件及框架节点正截面承载力计算受弯构件HPB300HRB335、HRBF335HRB400、HRBF400、RRB400偏心受压柱偏心受拉构件剪力墙0.85HRB500、HRBF500承载力抗震调整系数结构构件类别局部受压承载力计算受冲切承载力计算斜截面承载力计算注：预埋件锚筋截面计算的承载力抗震调整系数应取γRE为1.0轴压比小于0.15轴压比不小于0.15混凝土强度等级C20C25C30C35C40C45