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1、附录一动力弹塑性分析的材料非线性参数取值一混凝土材料:混凝土材料采用塑性损伤模型(Plastic-DamagedModel)(1).根据GB50010-2002混凝土强度分类如下:C25,C30,C35,C40,C45,C50,C55,C60,C65,C70,C75,C80(1)弹性模量:按(2)表4.1.5,单位kN/m2表1弹性模量C25C30C35C40C45C502.8E73E73.15E73.25E73.35E73.25E7C55C60C65C70C75C803.55E73.6E73.65E73.7E73.75E73.8E7(2)泊松比,统一取0.2
2、(参阅(2)的4.1.8)(3)剪切模量:按(2)表4.1.5中的0.4倍采用(参阅(2)的4.1.8).(4)密度(2):2.5T/m3(5)单轴应力-应变关系混凝土材料轴心抗压和轴心抗拉强度标准值按(2)表4.1.3采用.A:单轴受压,其应力-应变关系方程如下(参阅(2)C.2.1,P206):当时当时在0–0.7fc的应力范围为线弹性,其弹性模量按表1.大于0.7fc为塑性范围,应力-塑性应变关系如下:B:单轴受拉,其应力-应变关系方程如下(参阅(2)C.2.2,P208):当时当时在0–ft的应力范围为线弹性,其弹性模量按表1.大于ft为塑性范围,应力
3、-塑性应变关系如下:据此得到下列各等级混凝土材料在拉和压屈服后的应力(kN/m2)-塑性应变关系:*Material,Name=C25*Concretecompressionhardening应力(kN/m2)塑性应变11690.,016700.,0.13239.8,0.9841.27,0.7674.36,0.6248.49,0.5255.01,0.4527.98,0.3974.73,0.3540.4,0.*Concretetensionstiffening1797.8,01780.,0.1191.06,0.859.483,0.684.527,0.576.45
4、5,0.502.469,0.448.233,0.406.519,0.373.278,0.131.57,0.*Material,Name=C30*Concretecompressionhardening14070.,020100.,0.14636.6,0.10073.3,0.7500.85,0.5931.13,0.4889.86,0.4153.49,0.3607.,0.3186.09,0.*Concretetensionstiffening2030.1,02010.,0.1232.19,0.849.073,0.660.524,0.548.371,0.473.40
5、4,0.419.357,0.378.298,0.345.892,0.118.271,0.*Material,Name=C35*Concretecompressionhardening16380.,023400.,0.15814.6,0.10267.4,0.7408.77,0.5749.74,0.4682.74,0.3943.69,0.3403.29,0.2991.69,0.*Concretetensionstiffening2222.,02200.,0.1253.05,0.834.315,0.638.442,0.524.938,0.450.278,0.397.
6、041,0.356.924,0.325.457,0.109.188,0.*Material,Name=C40*Concretecompressionhardening18760.,026800.,0.16909.7,0.10469.9,0.7378.84,0.5650.07,0.4562.41,0.3819.83,0.3282.34,0.2876.02,0.*Concretetensionstiffening2413.9,02390.,0.1263.67,0.815.537,0.615.229,0.501.733,0.428.08,0.376.039,0.33
7、7.082,0.306.681,0.101.338,0.*Material,Name=C45*Concretecompressionhardening20720.,029600.,0.17743.1,0.10639.8,0.7386.84,0.5609.46,0.4506.18,0.3759.48,0.3222.27,0.2817.97,0.*Concretetensionstiffening2535.1,02510.,0.1265.87,0.802.219,0.600.343,0.487.385,0.414.624,0.363.47,0.325.314,0.
8、295.619,0.96.8983,0
