资源描述：
《混凝土本构大数据的》由会员上传分享，免费在线阅读，更多相关内容在工程资料-天天文库。
1、实用标准文案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C25C30C35C40C45C502.8E73E73.15E73.25E73.35E73.25E7C55C60C65C70C75C803.55E73.6E73.65E73.7E73.75E
2、73.8E7(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):2.5T/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):当时当时精彩文档实用标准文案在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
3、):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*Concretecompressionhardening应力(kN/m2)塑性应变11690.,016700.,0.00080869313239.8,0.002337399841.27,0.003863897674.36,0.00534646248.49,0.006802455255.01,0.008243054527
4、.98,0.009674143974.73,0.0110993540.4,0.0125197*Concretetensionstiffening1797.8,01780.,0.0000255151191.06,0.000135635精彩文档实用标准文案859.483,0.000236563684.527,0.000331898576.455,0.000424844502.469,0.000516573448.233,0.000607596406.519,0.000698173373.278,0.000788446131.57,0.00
5、355876*Material,Name=C30*Concretecompressionhardening14070.,020100.,0.00080189814636.6,0.0024559110073.3,0.004079927500.85,0.005637565931.13,0.007161794889.86,0.008668394153.49,0.01016483607.,0.0116553186.09,0.0131409*Concretetensionstiffening2030.1,02010.,0.00002825631
6、232.19,0.00014944849.073,0.000257466660.524,0.000359008548.371,0.000458002473.404,0.000555757419.357,0.000652815378.298,0.00074944345.892,0.000845777118.271,0.00380631*Material,Name=C35*Concretecompressionhardening16380.,023400.,0.00078943115814.6,0.0025625310267.4,0.00
7、4270927408.77,0.00589395精彩文档实用标准文案5749.74,0.007478914682.74,0.009045073943.69,0.01060083403.29,0.01215032991.69,0.0136956*Concretetensionstiffening2222.,02200.,0.00003014271253.05,0.000160189834.315,0.000273466638.442,0.000379668524.938,0.000483255450.278,0.000585609397
8、.041,0.000687284356.924,0.000788541325.457,0.000889524109.188,0.00399589*Material,Name=C40*Concretecompression
