基于MSC.Marc的高混凝土坝非线性时效变形量化的程序实现
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摘要
变形是混凝土坝结构性态的综合反映,尤其是时效变形,是评价大坝结构性态转异和长效服役健康状况的重要指标.针对坝体混凝土徐变和坝基岩体蠕变等材料固有时效变形特征所引起的混凝土坝时效变形,组建了适合高混凝土坝变形的坝体、坝基非线性时变本构模型,并研究了三维应力状态下的时效变形方程,提出了基于Drucker-Prager屈服函数的坝基岩体蠕变分段准则;在此基础上,基于通用商业有限元软件MSC.Marc,研究了本文所建非线性时变本构模型的二次开发程序实现方法,进而实现对高混凝土坝固有时效变形的量化分析.通过算例验证了基于MSC.Marc进行二次开发的可行性和正确性,某高混凝土重力坝固有时效变形的正反分析结果表明了所建模型的工程实用性.
Deformation is a comprehensive performance of concrete dam structures, especially the time-dependent deformation, a key index for evaluation of the structure behaviors, health status, and their evolution of a dam in long-term service. Aiming at the inherent timedependent deformation behaviours of dam concrete and foundation rock, nonlinear time-dependent constitutive model is suitably established for the deformation of high concrete dams in this paper. Then, the time-dependent deformation equations for dam concrete and foundation rock in three-dimensional stress state are studied, and the corresponding segmentation criteria based on the DruckerPrager yield function is proposed. On this basis, on the platform of the general commercial finite element software MSC.Marc,implementation method of the second development program of the established nonlinear time-dependent constitutive model is proposed. The correctness of the established model and its second development method based on MSC.Marc are verified by an example. The analysis and back analysis results of the inherent time-dependent deformation of a high concrete gravity dam show the engineering practicability of the established model.
Deformation is a comprehensive performance of concrete dam structures, especially the time-dependent deformation, a key index for evaluation of the structure behaviors, health status, and their evolution of a dam in long-term service. Aiming at the inherent timedependent deformation behaviours of dam concrete and foundation rock, nonlinear time-dependent constitutive model is suitably established for the deformation of high concrete dams in this paper. Then, the time-dependent deformation equations for dam concrete and foundation rock in three-dimensional stress state are studied, and the corresponding segmentation criteria based on the DruckerPrager yield function is proposed. On this basis, on the platform of the general commercial finite element software MSC.Marc,implementation method of the second development program of the established nonlinear time-dependent constitutive model is proposed. The correctness of the established model and its second development method based on MSC.Marc are verified by an example. The analysis and back analysis results of the inherent time-dependent deformation of a high concrete gravity dam show the engineering practicability of the established model.
引文
1吴中如,徐波,顾冲时,等.大坝服役状态的综合评判方法.中国科学:技术科学,2012,42:1243-1254
2顾冲时,苏怀智,王少伟.高混凝土坝长期变形特性计算模型及监控方法研究进展.水力发电学报,2016,35:1-14
3 Wu Z R,Peng Y,Li Z C,et al.Commentary of research situation and innovation frontier in hydro-structure engineering science.Sci China Tech Sci,2011,54:767-780
4 Zhang G X,Liu Y,Zheng C Y,et al.Simulation of influence of multi-defects on long-term working performance of high arch dam.Sci China Tech Sci,2011,54:1-8
5 Campos A,López C M,Blanco A,et al.Structural diagnosis of a concrete dam with cracking and high nonrecoverable displacements.J Perform Constr Facil,2016,30:04016021
6樊启祥,李文伟,翁文林.欧洲水坝考察纪实.中国三峡,2010,3:39-49
7 Barla G,Antolini F,Barla M,et al.Monitoring of the Beauregard landslide(Aosta Valley,Italy)using advanced and conventional techniques.Eng Geol,2010,116:218-235
8刘有志,张国新,程恒,等.特高拱坝谷幅缩窄成因及对大坝变形和应力的影响分析.见:贾金生,纪进旭,李洪泉,等,编.中国大坝协会2014学术年会论文集.郑州:黄河水利出版社,2014.51-60
9徐卫亚,杨圣奇,褚卫江.岩石非线性黏弹塑性流变模型(河海模型)及其应用.岩石力学与工程学报,2006,25:433-447
10阎岩,王思敬,王恩志.基于西原模型的变参数蠕变方程.岩土力学,2010,31:3025-3035
11 Zhang H B,Wang Z Y,Zheng Y L,et al.Study on tri-axial creep experiment and constitutive relation of different rock salt.Saf Sci,2012,50:801-805
12 Yang W D,Zhang Q Y,Li S S,et al.Time-dependent behavior of diabase and a nonlinear creep model.Rock Mech Rock Eng,2014,47:1211-1224
13 Chen L,Wang C P,Liu J F,et al.A damage-mechanism-based creep model considering temperature effect in granite.Mech Res Commun,2014,56:76-82
14王如宾,徐卫亚,孟永东,等.锦屏一级水电站左岸坝肩高边坡长期稳定性数值分析.岩石力学与工程学报,2014,33(S1):3105-3113
15程立,刘耀儒,潘元炜,等.锦屏一级拱坝左岸边坡长期变形对坝体影响研究.岩石力学与工程学报,2016,35(S2):4040-4052
16黄耀英,沈振中,吴中如.基于MSC.Marc二次开发进行黏弹性问题分析.长江科学院院报,2006,23:95-98
17杨文东,张强勇,张建国,等.基于FLAC3D的改进Burgers蠕变损伤模型的二次开发研究.岩土力学,2010,31:1956-1964
18杨文东,张强勇,李术才,等.以屈服接近度分段函数表示的非线性流变模型的程序实现.岩土力学,2013,34:2629-2637
19潘晓明,杨钊,雷春娟,等.广义西原黏弹塑流变模型在ABAQUS中开发与应用.建筑结构学报,2010,31(S1):323-329
20王芝银,李云鹏.岩体流变理论及其数值模拟.北京:科学出版社,2008
21张传庆.基于破坏接近度的岩石工程安全性评价方法的研究.博士学位论文.武汉:中国科学院武汉岩土力学研究所,2006
22 MSC,Software Corporation.MSC Marc Vol.D:User Subroutines and Special Routines.Santa Ana:MSC Software Corporation,2005
2顾冲时,苏怀智,王少伟.高混凝土坝长期变形特性计算模型及监控方法研究进展.水力发电学报,2016,35:1-14
3 Wu Z R,Peng Y,Li Z C,et al.Commentary of research situation and innovation frontier in hydro-structure engineering science.Sci China Tech Sci,2011,54:767-780
4 Zhang G X,Liu Y,Zheng C Y,et al.Simulation of influence of multi-defects on long-term working performance of high arch dam.Sci China Tech Sci,2011,54:1-8
5 Campos A,López C M,Blanco A,et al.Structural diagnosis of a concrete dam with cracking and high nonrecoverable displacements.J Perform Constr Facil,2016,30:04016021
6樊启祥,李文伟,翁文林.欧洲水坝考察纪实.中国三峡,2010,3:39-49
7 Barla G,Antolini F,Barla M,et al.Monitoring of the Beauregard landslide(Aosta Valley,Italy)using advanced and conventional techniques.Eng Geol,2010,116:218-235
8刘有志,张国新,程恒,等.特高拱坝谷幅缩窄成因及对大坝变形和应力的影响分析.见:贾金生,纪进旭,李洪泉,等,编.中国大坝协会2014学术年会论文集.郑州:黄河水利出版社,2014.51-60
9徐卫亚,杨圣奇,褚卫江.岩石非线性黏弹塑性流变模型(河海模型)及其应用.岩石力学与工程学报,2006,25:433-447
10阎岩,王思敬,王恩志.基于西原模型的变参数蠕变方程.岩土力学,2010,31:3025-3035
11 Zhang H B,Wang Z Y,Zheng Y L,et al.Study on tri-axial creep experiment and constitutive relation of different rock salt.Saf Sci,2012,50:801-805
12 Yang W D,Zhang Q Y,Li S S,et al.Time-dependent behavior of diabase and a nonlinear creep model.Rock Mech Rock Eng,2014,47:1211-1224
13 Chen L,Wang C P,Liu J F,et al.A damage-mechanism-based creep model considering temperature effect in granite.Mech Res Commun,2014,56:76-82
14王如宾,徐卫亚,孟永东,等.锦屏一级水电站左岸坝肩高边坡长期稳定性数值分析.岩石力学与工程学报,2014,33(S1):3105-3113
15程立,刘耀儒,潘元炜,等.锦屏一级拱坝左岸边坡长期变形对坝体影响研究.岩石力学与工程学报,2016,35(S2):4040-4052
16黄耀英,沈振中,吴中如.基于MSC.Marc二次开发进行黏弹性问题分析.长江科学院院报,2006,23:95-98
17杨文东,张强勇,张建国,等.基于FLAC3D的改进Burgers蠕变损伤模型的二次开发研究.岩土力学,2010,31:1956-1964
18杨文东,张强勇,李术才,等.以屈服接近度分段函数表示的非线性流变模型的程序实现.岩土力学,2013,34:2629-2637
19潘晓明,杨钊,雷春娟,等.广义西原黏弹塑流变模型在ABAQUS中开发与应用.建筑结构学报,2010,31(S1):323-329
20王芝银,李云鹏.岩体流变理论及其数值模拟.北京:科学出版社,2008
21张传庆.基于破坏接近度的岩石工程安全性评价方法的研究.博士学位论文.武汉:中国科学院武汉岩土力学研究所,2006
22 MSC,Software Corporation.MSC Marc Vol.D:User Subroutines and Special Routines.Santa Ana:MSC Software Corporation,2005
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