|Table of Contents|

Recovery and Application of Stress Field in Statically Indeterminate Frame Under Uneven Settlement of Foundation(PDF)

《建筑科学与工程学报》[ISSN:1673-2049/CN:61-1442/TU]

Issue:
2019年03期
Page:
117-126
Research Field:
Publishing date:

Info

Title:
Recovery and Application of Stress Field in Statically Indeterminate Frame Under Uneven Settlement of Foundation
Author(s):
LU Shu-wen;  LIU Yang;  CHANG Le;  FENG Yun;  GAO Hai-jun
(National Center for Quality Supervision and Test of Building Engineering, China Academy of Building Research, Beijing 100013, China)
Keywords:
statically indeterminate steel frame;  uneven settlement of foundation;  matrix displacement method;  strain monitoring;  recovery calculation of stress field
PACS:
TU434
DOI:
-
Abstract:
Aiming at the problem of stress field recovery of statically indeterminate frame structure with uneven settlement of foundation, the calculation principle of stress field recovery of statically indeterminate steel frame structure system based on matrix displacement method of structural mechanics was presented. Based on the static equilibrium condition and deformation compatibility condition of the whole statically indeterminate structure system with upper steel frame, independent foundation and multi-dimensional elastic foundation support, the finite element calculation model of statically indeterminate structure was established. Taking a practical monitoring project as an example, the stress field of the whole statically indeterminate structure with upper frame, foundation and base spring support under the second equilibrium state was calculated and restored by MIDAS/Gen finite element software. The elastic stiffness in all directions of the base spring support was calculated from the measured displacement of the column foot of the steel frame column, and the stiffness matrix and displacement matrix under the second equilibrium state of the whole statically indeterminate structure were obtained, so as to obtain the internal force calculation values of each member of the statically indeterminate steel frame structure at the initial and final stages of monitoring. Finally, the theoretical calculation increment and monitoring increment of internal forces of steel frame members were compared. The results show that the relative error between theoretical calculation increment and monitoring increment is not more than 40%, and the theoretical value of internal force is consistent with the incremental change direction of monitoring increment. The rationality and feasibility of stress field recovery method for statically indeterminate frame structures based on matrix displacement method are verified.

References:


[1] 宋建学,李力剑,仝元通.土钉墙-桩锚-内撑复合支护体系监测与分析[J].建筑科学与工程学报,2018,35(4):120-126.
SONG Jian-xue,LI Li-jian,TONG Yuan-tong.Monitoring and Analysis on Composite Support System with Soil-nailing Wall-pile Anchor-inner Bracing[J].Journal of Architecture and Civil Engineering,2018,35(4):120-126.
[2]王志丰,王亚琼,谢永利.水泥搅拌桩施工引起深层土体水平位移分析[J].建筑科学与工程学报,2016,33(4):90-96.
WANG Zhi-feng,WANG Ya-qiong,XIE Yong-li.Investigation into Lateral Displacement of Subsoils Induced by Installing Soil-cement Columns[J].Journal of Architecture and Civil Engineering,2016,33(4):90-96.
[3]刘 畅,郑 刚.地基不均匀沉降对上部结构影响的弹性支承分析法[J].建筑结构学报,2004,25(4):124-128.
LIU Chang,ZHENG Gang.Analysis of the Influence of Ground Unequal Settlement on the Structure with Elastic Support Model Method[J].Journal of Building Structures,2004,25(4):124-128.
[4]贾 强,程林林,张 鑫.地基不均匀沉降对框架结构影响的试验研究[J].土木工程学报,2011,44(11):79-86.
JIA Qiang,CHENG Lin-lin,ZHANG Xin.Experimental Study of the Influence of Differential Settlement on RC Frame Structures[J].China Civil Engineering Journal,2011,44(11):79-86.
[5]贾 强,张 鑫.地基不均匀沉降对框架结构影响的有限元分析[J].计算力学学报,2011,28(2):265-269.
JIA Qiang,ZHANG Xin.Finite Element Analysis on Non-uniform Settlement of Foundation on RC Frame Structures[J].Chinese Journal of Computational Mechanics,2011,28(2):265-269.
[6]王 晖,吴胜发,孙作玉.地基不均匀沉降对上部结构影响的三维弹性支承分析法[J].岩土工程技术,2005,19(3):137-140.
WANG Hui,WU Sheng-fa,SUN Zuo-yu.Analysis of the Influence of Ground Unequal Settlement on the Structure with Three-dimensional Elastic Support Model Method[J].Geotechnical Engineering Technique,2005,19(3):137-140.
[7]张添渊,吕泽楷,康现照,等.基础沉降对钢框架结构安全性影响的数值模拟研究[J].青海大学学报,2017,35(2):55-59.
ZHANG Tian-yuan,LU Ze-kai,KANG Xian-zhao,et al.Numerical Simulation of the Effect of Foundation Settlement on the Safety of Steel Frame Structures[J].Journal of Qinghai University,2017,35(2):55-59.
[8]高自理.地基不均匀沉降对上部框架结构的影响分析[D].武汉:武汉理工大学,2008.
GAO Zi-li.Analysis of the Impact of Subgrade Differential Settlement to Above Ground Part of the Frame Structure[D].Wuhan:Wuhan University of Technology,2008.
[9]黄利明.软土地区地基不均匀沉降对框架结构影响的反分析研究[D].天津:天津大学,2010.
HUANG Li-ming.Study on the Back-analysis of the Frame Structure on Soft Subsoils with Differential Settlements[D].Tianjin:Tianjin University,2010.
[10]张春梅,王 珊,王英浩.钢结构体系加固后地基基础不均匀沉降检测方法与分析[J].内蒙古科技大学学报,2017,36(3):303-306.
ZHANG Chun-mei,WANG Shan,WANG Ying-hao.Detection Methods and Analysis of Uneven Settlement of Foundation Base Following the Steel Structure Reinforcement[J].Journal of Inner Mongolia University of Science and Technology,2017,36(3):303-306.
[11]林 海.考虑地基不均匀沉降对RC框架结构抗震性能的影响分析[D].合肥:合肥工业大学,2014.
LIN Hai.Analysis of the Influence of Uneven Base Settlement on Seismic Performance of RC Framework Structure[D].Hefei:Hefei University of Technology,2014.
[12]胡 琦,蒋 军,朱国元,等.软土地基上不均匀沉降建筑物的数值分析[J].江南大学学报:自然科学版,2005,4(2):158-162.
HU Qi,JIANG Jun,ZHU Guo-yuan,et al.Numerical Analyses of Asymmetric Sedimentation Buildings on Soft Soil[J].Journal of Southern Yangtze University:Natural Science Edition,2005,4(2):158-162.
[13]张嘉凡,张慧梅.软土地基路基不均匀沉降引起路面结构附加应力[J].长安大学学报:自然科学版,2003,23(3):21-25.
ZHANG Jia-fan,ZHANG Hui-mei.Additional Stress in Pavement Structure Due to Asymmetrical Settlement of Soft Subgrade[J].Journal of Chang'an University:Natural Science Edition,2003,23(3):21-25.
[14]朱爱军,邓安福,王小敏,等.竖向荷载作用下的单桩基础、地基梁与框架共同作用分析[J].岩石力学与工程学报,2002,21(5):749-754.
ZHU Ai-jun,DENG An-fu,WANG Xiao-min,et al.Interaction of Pile,Base-beam and Frame Under Vertical Load[J].Chinese Journal of Rock Mechanics and Engineering,2002,21(5):749-754.
[15]张永兵,唐 滢,梁星云,等.土弹性模量对土-结构共同作用体系影响分析[J].广西大学学报:自然科学版,2016,41(4):1139-1144.
ZHANG Yong-bing,TANG Ying,LIANG Xing-yun,et al.Impact of Soil Elastic Modulus on Soil-structure Interaction[J].Journal of Guangxi University:Natural Science Edition,2016,41(4):1139-1144.
[16]钱 坤,尹新生,朱 珊.差异框架结构地基不均匀沉降的分析与处理[J].四川建筑科学研究,2010,36(1):118-120.
QIAN Kun,YIN Xin-sheng,ZHU Shan.The Analysis and Processing of Differential Settlement of the Difference Framed Structure[J].Sichuan Building Science,2010,36(1):118-120.
[17]陈大川,唐利飞,郭杰标.某住宅楼不均匀沉降事故的分析及处理[J].工业建筑,2011,41(4):136-139.
CHEN Da-chuan,TANG Li-fei,GUO Jie-biao.Analysis and Treatment of an Uneven Settlement Accident of a Residential Building[J].Industrial Construction,2011,41(4):136-139.
[18]李 林,李克光,张 涛.某公寓楼地基不均匀沉降事故的检测鉴定及加固处理[J].建筑科学,2011,27(7):93-95,89.
LI Lin,LI Ke-guang,ZHANG Tao.The Appraisal and Strengthening of the Unequal Settlement of the Foundation of an Apartment Building[J].Building Science,2011,27(7):93-95,89.
[19]龙驭球,包世华,匡文起,等.结构力学教程(Ⅰ)[M].北京:高等教育出版社,2000.
LONG Yu-qiu,BAO Shi-hua,KUANG Wen-qi,et al.Structural Mechanics(Ⅰ)[M].Beijing:Higher Education Press,2000.
[20]丁 敏,张永兴.基于矩阵位移法的桩锚结构分析方法[J].工程力学,2012,29(8):116-122.
DING Min,ZHANG Yong-xing.Analysis Method for Pile-anchor Retaining Structures Based on the Displacement Matrix Method[J].Engineering Mechanics,2012,29(8):116-122.
[21]庄一舟,徐 亮,黄炎准.一种半整体式桥台桥梁搭板的内力计算方法[J].建筑科学与工程学报,2016,33(5):35-43.
ZHUANG Yi-zhou,XU Liang,HUANG Yan-zhun.One Way About Internal Force Calculation of Approach Slab in Semi-integral Abutment Bridge[J].Journal of Architecture and Civil Engineering,2016,33(5):35-43.
[22]龚耀清,白俊英.矩阵位移法分析弹性地基上空间巨型框架结构[J].工程力学,2005,22(增):142-145.
GONG Yao-qing,BAI Jun-ying.Analysis of a Mega Space Frame on Elastic Subgrade with Matrix Displacement Method[J].Engineering Mechanics,2005,22(S):142-145.
[23]GB 50307—2012,城市轨道交通岩土工程勘察规范[S].
GB 50307—2012,Code for Geotechnical Investigations of Urban Rail Transit[S].
[24]周继凯,杜钦庆.考虑水平力作用的改进型文克勒地基模型[J].河海大学学报:自然科学版,2004,32(6):669-673.
ZHOU Ji-kai,DU Qin-qing.Modified Winkler Foundation Model with Horizontal Force Taken Into Account[J].Journal of Hohai University:Natural Sciences,2004,32(6):669-673.
[25]张 载.双参数地基模型基床系数的获取及应用[D].长沙:湖南大学,2014.
ZHANG Zai.The Derivation and Application of Coefficients of Subgrade Reaction of Two Parameters Foundation[D].Changsha:Hunan University,2014.
[26]石 坚,武 莹,贺建辉.上部结构、筏板基础和地基共同作用的有限元分析[J].建筑科学与工程学报,2006,23(2):72-75.
SHI Jian,WU Ying,HE Jian-hui.FEA on Interaction of Super Structure,Raft Foundation and Ground Base[J].Journal of Architecture and Civil Engineering,2006,23(2):72-75.
[27]JGJ 8—2016,建筑变形测量规范[S].
JGJ 8—2016,Code for Deformation Measurement of Building and Structure[S].

[16]胡 琦,蒋 军,朱国元,等.软土地基上不均匀沉降建筑物的数值分析[J].江南大学学报:自然科学版,2005,4(2):158-162.
HU Qi,JIANG Jun,ZHU Guo-yuan,et al.Numerical Analyses of Asymmetric Sedimentation Building on Soft Soil[J].Journal of Southern Yangtze University:Natural Science Edition,2005 4(2):158-162.
[13]张嘉凡,张慧梅.软土地基路基不均匀沉降引起路面结构附加应力[J].长安大学学报:自然科学版,2003,23(3):21-25.
ZHANG Jia-fan,ZHANG Hui-mei.Additional Stress in Pavement Structure Due to Asymmetrical Settlement of Soft Subgrade[J].Journal of Chang'an University:Natural Science Edition,2003,23(3):21-25.
[14]朱爱军,邓安福,王小敏,等.竖向荷载作用下的单桩基础、地基梁与框架共同作用分析[J].岩石力学与工程学报,2002,21(5):749-754.
ZHU Ai-jun,DENG An-fu,WANG Xiao-min,et al.Interaction of Pile,Base-beam and Frame Under Vertical Load[J].Chinese Journal of Rock Mechanics and Engineering,2002,21(5):749-754.
[15]张永兵,唐 滢,梁星云,等.土弹性模量对土-结构共同作用体系影响分析[J].广西大学学报:自然科学版,2016,41(4):1139-1144.
ZHANG Yong-bing,TANG Ying,LIANG Xing-yun,et al.Impact of Soil Elastic Modulus on Soil-structure Interaction[J].Journal of Guangxi University:Natural Science Edition,2016,41(4):1139-1144.
[17]陈大川,唐利飞,郭杰标.某住宅楼不均匀沉降事故的分析及处理[J].工业建筑,2011,41(4):136-139.
CHEN Da-chuan,TANG Li-fei,GUO Jie-biao.Analysis and Treatment of An Uneven Settlement Accident of a Residential Building[J].Industrial Construction,2011,41(4):136-139.
[18]李 林,李克光,张 涛.某公寓楼地基不均匀沉降事故的检测鉴定及加固处理[J].建筑科学,2011,27(7):93-95,89.
LI Lin,LI Ke-guang,ZHANG Tao.The Appraisal and Strengthening of the Unequal Settlement of the Foundation of an Apartment Building[J].Building Science,2011,27(7):93-95,89.

Memo

Memo:
-
Last Update: 2019-05-23