附录一 动力弹塑性分析的材料非线性参数取值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: 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) 弹性模量弹性模量: 按(2)表 4.1.5, 单位 kN/m2 表 1 弹性模量 C25C30C35C40C45C50 2.8E73E73.15E73.25E73.35E73.25E7 C55C60C65C70C75C80 3.55E73.6E73.65E73.7E73.75E73.8E7 (2) 泊松比泊松比, 统一取 0.2 (参阅(2)的 4.1.8) (3) 剪切模量剪切模量: 按(2)表 4.1.5 中的 0.4 倍采用(参阅(2)的 4.1.8). (4) 密度密度(2): 2.5 T/m3 (5) 单轴应力单轴应力-应变关系应变关系 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1x 32 )2()23(xxy aaa 当时1x xx x y d 2 ) 1( c x c f y 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: 0 E c c in c 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1x 6 2 . 02 . 1xxy 当时1x xx x y t 7 . 1 ) 1( t x t f y 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: 0 E t t ck t 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., 0 16700., 0.000808693 13239.8, 0.00233739 9841.27, 0.00386389 7674.36, 0.0053464 6248.49, 0.00680245 5255.01, 0.00824305 4527.98, 0.00967414 3974.73, 0.011099 3540.4, 0.0125197 *Concrete tension stiffening 1797.8, 0 1780., 0.000025515 1191.06, 0.000135635 859.483, 0.000236563 684.527, 0.000331898 576.455, 0.000424844 502.469, 0.000516573 448.233, 0.000607596 406.519, 0.000698173 373.278, 0.000788446 131.57, 0.00355876 *Material, Name=C30 *Concrete compression hardening 14070., 0 20100., 0.000801898 14636.6, 0.00245591 10073.3, 0.00407992 7500.85, 0.00563756 5931.13, 0.00716179 4889.86, 0.00866839 4153.49, 0.0101648 3607., 0.011655 3186.09, 0.0131409 *Concrete tension stiffening 2030.1, 0 2010., 0.0000282563 1232.19, 0.00014944 849.073, 0.000257466 660.524, 0.000359008 548.371, 0.000458002 473.404, 0.000555757 419.357, 0.000652815 378.298, 0.00074944 345.892, 0.000845777 118.271, 0.00380631 *Material, Name=C35 *Concrete compression hardening 16380., 0 23400., 0.000789431 15814.6, 0.00256253 10267.4, 0.00427092 7408.77, 0.00589395 5749.74, 0.00747891 4682.74, 0.00904507 3943.69, 0.0106008 3403.29, 0.0121503 2991.69, 0.0136956 *Concrete tension stiffening 2222., 0 2200., 0.0000301427 1253.05, 0.000160189 834.315, 0.000273466 638.442, 0.000379668 524.938, 0.000483255 450.278, 0.000585609 397.041, 0.000687284 356.924, 0.000788541 325.457, 0.000889524 109.188, 0.00399589 *Material, Name=C40 *Concrete compression hardening 18760., 0 26800., 0.000764814 16909.7, 0.00265856 10469.9, 0.00444614 7378.84, 0.00613068 5650.07, 0.0077733 4562.41, 0.0093962 3819.83, 0.0110085 3282.34, 0.0126144 2876.02, 0.0142164 *Concrete tension stiffening 2413.9, 0 2390., 0.0000309422 1263.67, 0.000170079 815.537, 0.000288349 615.229, 0.000398993 501.733, 0.000506966 428.08, 0.000613712 376.039, 0.000719794 337.082, 0.000825474 306.681, 0.00093089 101.338, 0.00417611 *Material, Name=C45 *Concrete compression hardening 20720., 0 29600., 0.00075015 17743.1, 0.00273782 10639.8, 0.00458359 7386.84, 0.00631443 5609.46, 0.00800122 4506.18, 0.00966788 3759.48, 0.0113239 3222.27, 0.0129737 2817.97, 0.0146195 *Concrete tension stiffening 2535.1, 0 2510., 0.0000323044 1265.87, 0.000176673 802.219, 0.000297743 600.343, 0.000410999 487.385, 0.0005216 414.624, 0.000631002 363.47, 0.000739759 325.314, 0.000848128 295.619, 0.000956244 96.8983, 0.0042863 *Material, Name=C50 *Concrete compression hardening 22680., 0 32400., 0.000739885 18515.2, 0.00282136 10800.8, 0.00472398 7406.35, 0.00650139 5586.72, 0.00823314 4469.4, 0.00994455 3718.4, 0.0116453 3180.69, 0.0133399 2777.43, 0.0150306 *Concrete tension stiffening 2666.4, 0 2640., 0.0000336591 1264.64, 0.000183705 786.735, 0.000307738 584.088, 0.000423793 472.094, 0.00053722 400.477, 0.000649477 350.37, 0.00076111 313.124, 0.00087237 284.214, 0.000983389 92.4472, 0.00440455 *Material, Name=C55 *Concrete compression hardening 24850., 0 35500., 0.00072745 19297., 0.00291132 10959.8, 0.00487362 7429.12, 0.00670053 5569.63, 0.00848036 4439.05, 0.0102397 3683.89, 0.0119884 3145.52, 0.013731 2743.03, 0.0154698 *Concrete tension stiffening 2767.4, 0 2740., 0.0000352217 1261.67, 0.00018927 774.457, 0.000315399 571.752, 0.000433514 460.697, 0.000549047 390.039, 0.000663442 340.767, 0.000777235 304.231, 0.000890669 275.923, 0.00100387 89.2809, 0.00449368 *Material, Name=C60 *Concrete compression hardening 26950., 0 38500., 0.000700606 19978.3, 0.00298515 11087.9, 0.00500215 7444.03, 0.00687342 5552.82, 0.008696 4412.21, 0.0104977 3654.2, 0.0122888 3115.66, 0.0140739 2714.07, 0.0158551 *Concrete tension stiffening 2878.5, 0 2850., 0.0000356383 1256.67, 0.000194702 760.756, 0.000323283 558。