混凝土本构数据

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-Damaged Model)(1).根据GB 50010-2002 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 (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): 2.5 T/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-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*Concrete compression hardening 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.*Concrete tension stiffening1797.8, 01780., 0.1191.06, 0.859.483, 0.684.527, 0.576.455, 0.502.469, 0.448.233, 0.406.519, 0.373.278, 0.131.57, 0. *Material, Name=C30*Concrete compression hardening14070., 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.*Concrete tension stiffening2030.1, 02010., 0.1232.19, 0.849.073, 0.660.524, 0.548.371, 0.473.404, 0.419.357, 0.378.298, 0.345.892, 0.118.271, 0. *Material, Name=C35*Concrete compression hardening16380., 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.*Concrete tension stiffening2222., 02200., 0.1253.05, 0.834.315, 0.638.442, 0.524.938, 0.450.278, 0.397.041, 0.356.924, 0.325.457, 0.109.188, 0. *Material, Name=C40*Concrete compression hardening18760., 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.*Concrete tension stiffening2413.9, 02390., 0.1263.67, 0.815.537, 0.615.229, 0.501.733, 0.428.08, 0.376.039, 0.337.082, 0.306.681, 0.101.338, 0. *Material, Name=C45*Concrete compression hardening20720., 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.*Concrete tension stiffening2535.1, 02510., 0.1265.87, 0.802.219, 0.600.343, 0.487.385, 0.414.624, 0.363.47, 0.325.314, 0.295.619, 0.96.8983, 0. *Material, Name=C50*Concrete compression hardening22680., 032400., 0.18515.2, 0.10800.8, 0.7406.35, 0.5586.72, 0.4469.4, 0.3718.4, 0.3180.69, 0.2777.43, 0.*Concrete tension stiffening2666.4, 02640., 0.1264.64, 0.786.735, 0.584.088, 0.472.094, 0.400.477, 0.350.37, 0.313.124, 0.284.214, 0.92.4472, 0. *Material, Name=C55*Concrete compression hardening24850., 035500., 0.19297., 0.10959.8, 0.7429.12, 0.5569.63, 0.4439.05, 0.3683.89, 0.3145.52, 0.2743.03, 0.*Concrete tension stiffening2767.4, 02740., 0.1261.67, 0.774.457, 0.571.752, 0.460.697, 0.390.039, 0.340.767, 0.304.231, 0.275.923, 0.89.2809, 0. *Material, Name=C60*Concrete compression hardening26950., 038500., 0.19978.3, 0.11087.9, 0.7444.03, 0.5552.82, 0.4412.21, 0.3654.2, 0.3115.66, 0.2714.07, 0.*Concrete tension stiffening2878.5, 02850., 0.1256.67, 0.760.756, 0.558.434, 0.448.564, 0.379.016, 0.330.681, 0.294.926, 0.267.272, 0.86.0337, 0. *Material, Name=C65*Concrete compression hardening29050., 041500., 0.20635.5, 0.11227.6, 0.7477.58, 0.5554.81, 0.4402.81, 0.3640.4, 0.3100.27, 0.2698.31, 0.*Concrete tension stiffening2959.3, 02930., 0.1252.05, 0.750.74, 0.548.949, 0.440.021, 0.371.305, 0.323.655, 0.288.463, 0.261.278, 0.83.8153, 0. *Material, Name=C70*Concrete compression hardening31150., 044500., 0.21274.9, 0.11377.9, 0.7526.44, 0.5571.79, 0.4407.16, 0.3639.02, 0.3096.11, 0.2692.74, 0.*Concrete tension stiffening3019.9, 02990., 0.1248.1, 0.743.23, 0.541.959, 0.433.772, 0.365.689, 0.318.553, 0.283.779, 0.256.941, 0.82.2252, 0. *Material, Name=C75*Concrete compression hardening33180., 047400., 0.21842.2, 0.11504.1, 0.7565.26, 0.5583.9, 0.4408.93, 0.3636.25, 0.3091.21, 0.2686.84, 0.*Concrete tension stiffening3080.5, 03050., 0.1243.9, 0.735.834, 0.535.156, 0.427.722, 0.360.269, 0.313.639, 0.279.275, 0.252.774, 0.80.7083, 0. *Material, Name=C80*Concrete compression hardening35140., 050200., 0.22358.2, 0.11618.5, 0.7601.82, 0.5596.63, 0.4412.34, 0.3635.46, 0.3088.38, 0.2683., 0.*Concrete tension stiffening3141.1, 03110., 0.1239.38, 0.728.476, 0.528.471, 0.421.811, 0.354.989, 0.308.862, 0.274.904, 0.248.735, 0.79.2484, 0.(6) 损伤系数:混凝土材料进入塑性状态伴随着刚度的降低, 如下图示(1):受拉受压文献(3)Fig4. (a), (b) 给出了混凝土材料单轴拉压的滞回曲线. 该曲线已被实验和计算验证. 通过线性插值, 可以得到混凝土材料各塑性应变所对应的损伤系数如下:*Material, Name=C25*Concrete compression damage损伤系数(dc)塑性应变0, 00.01, 0.0., 0.0., 0.0., 0.0.69718, 0.0.78611, 0.0.84114, 0.0., 0.0., 0.*Concrete tension damage损伤系数(dt)塑性应变0, 00.01, 0.0., 0.0., 0.0., 0.0., 0.0., 0.0., 0.0., 0.0., 0.0., 0. *Material, Name=C30*Concrete compression damage0, 00.01, 0.0., 0.0., 0.0., 0.0., 0.0., 0.0., 0.0., 0.0., 0.*Concrete tension damage0, 00.01, 0.0., 0.0., 0.0., 0.0.78758, 0.0., 0.0., 0.0., 0.0., 0.0., 0. *Material, Name=C35*Concrete compression damage0, 00.01, 0.0., 0.0., 0.0., 0.0., 0.0., 0.0.89589, 0.0.92031, 0.0., 0.*Concrete tension damage0, 00.01, 0.0., 0.0., 0.0., 0.0., 0.0., 0.0., 0.0., 0.0., 0.0., 0. *Material, Name=C40*Concrete compression damage0, 00.01, 0.0., 0.0., 0.0.72467, 0.0., 0.0., 0.0.90969, 0.0., 0.0., 0.*Concrete tension damage0, 00.01, 0.0., 0.0., 0.0., 0.0., 0.0., 0.0., 0.0.95046, 0.0., 0.0., 0. *Material, Name=C45*Concrete compression damage0, 00.01, 0.0.40057, 0.0., 0.0., 0.0., 0.0., 0.0., 0.0., 0.0., 0.*Concrete tension damage0, 00.01, 0.0., 0.0., 0.0., 0.0., 0.0., 0.0., 0.0., 0.0., 0.0., 0. *Material, Name=C50*Concrete compression damage0, 00.01, 0.0., 0.0., 0.0., 0.0., 0.0., 0.0.9253, 0.0., 0.0., 0.*Concrete tension damage0, 00.01, 0.0.52097, 0.0., 0.0., 0.0., 0.0., 0.0., 0.0., 0.0., 0.0., 0. *Material, Name=C55*Concrete compression damage0, 00.01, 0.0., 0.0., 0.0., 0.0., 0.0., 0.0.93165, 0.0., 0.0., 0.*Concrete tension damage0, 00.01, 0.0., 0.0., 0.0., 0.0., 0.0.91763, 0.0., 0.0., 0.0., 0.0., 0. *Material, Name=C60*Concrete compression damage0, 00.01, 0.0., 0.0., 0.0., 0.0., 0.0., 0.0., 0.0., 0.0., 0.*Concrete tension damage0, 00.01, 0.0., 0.0., 0.0., 0.0., 0.0., 0.0., 0.0., 0.0., 0.0., 0. *Material, Name=C65*Concrete compression damage0, 00.01, 0.0., 0.0., 0.0., 0.0., 0.0., 0.0., 0.0.95434, 0.0.96378, 0.*Concrete tension damage0, 00.01, 0.0., 0.0., 0.0., 0.0., 0.0., 0.0., 0.0., 0.0., 0.0., 0. *Material, Name=C70*Concrete compression damage0, 00.01, 0.0., 0.0., 0.0., 0.0., 0.0., 0.0., 0.0.