Research on Restoring Force Model of Freeze-Thaw Damaged Reinforced Concrete Columns

WANG Yan; XU Shanhua; LI Anbang

doi:10.13204/j.gyjzG21101322

Volume 52 Issue 8

Aug. 2022

Turn off MathJax

Article Contents

Article Navigation > INDUSTRIAL CONSTRUCTION > 2022 > 52(8): 97-102

WANG Yan, XU Shanhua, LI Anbang. Research on Restoring Force Model of Freeze-Thaw Damaged Reinforced Concrete Columns[J]. INDUSTRIAL CONSTRUCTION, 2022, 52(8): 97-102. doi: 10.13204/j.gyjzG21101322

Citation:

WANG Yan, XU Shanhua, LI Anbang. Research on Restoring Force Model of Freeze-Thaw Damaged Reinforced Concrete Columns[J]. INDUSTRIAL CONSTRUCTION, 2022, 52(8): 97-102. doi: 10.13204/j.gyjzG21101322

WANG Yan, XU Shanhua, LI Anbang. Research on Restoring Force Model of Freeze-Thaw Damaged Reinforced Concrete Columns[J]. INDUSTRIAL CONSTRUCTION, 2022, 52(8): 97-102. doi: 10.13204/j.gyjzG21101322

Citation:

WANG Yan, XU Shanhua, LI Anbang. Research on Restoring Force Model of Freeze-Thaw Damaged Reinforced Concrete Columns[J]. INDUSTRIAL CONSTRUCTION, 2022, 52(8): 97-102. doi: 10.13204/j.gyjzG21101322

PDF( 2846 KB)

Research on Restoring Force Model of Freeze-Thaw Damaged Reinforced Concrete Columns

doi: 10.13204/j.gyjzG21101322

School of Civil Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China

Received Date: 2021-10-13
Available Online: 2022-12-01

Abstract

Abstract

In order to study the seismic performance of existing reinforced concrete structures in cold and seismic regions, the results of the quasi-static tests of eight reinforced concrete columns subjected to freezing-thawing cycles were analyzed. Considering the impacts of freezing-thawing cycle times and axial compression ratio on the bearing capacity and hysteretic behavior of member columns, a trilinear skeleton curve was proposed. Besides, the calculation formula of unloading stiffness before and after yield and specific hysteretic rules were obtained, furthermore, the stiffness degradation trilinear restoring force model of "pointing point" of freezing-thawing damaged reinforced concrete columns was established. The comparative analysis between the test curves and the calculation curves showed that the proposed restoring force model had a certain accuracy, which could provide a theoretical basis for the seismic response analysis of reinforced concrete columns in freeze-thaw environment.
- reinforced concrete column,
- freeze-thaw cycles,
- quasi-static test,
- restoring force model

FullText(HTML)

References(19)

References

[1]	MEHTA P K.Concrete durability:fifty years’progress[C]//Proceedings of 2nd International Conference on Concrete Durability.Detroit:ACI Publication,1991:1-33.
[2]	金伟良,赵羽习.混凝土结构耐久性研究的回顾与展望[J].浙江大学学报,2002,36(4):371-380.
[3]	牛荻涛.混凝土结构耐久性与寿命预测[M].北京:科学出版社,2003.
[4]	HANJARI K Z,KETTIL P,LUNDGREN K.Modelling the structural behaviour of frost-damaged reinforced concrete structures[J].Structure & Infrastructure Engineering,2013,9(5):416-431.
[5]	曹大富,马钊,葛文杰,等.冻融循环作用后钢筋混凝土柱的偏心受压性能[J].东南大学学报(自然科学版),2014,44(1):188-193.
[6]	DUAN A,LI Z,ZHANG W,et al.Flexural behaviour of reinforced concrete beams under freeze-thaw cycles and sustained load [J].Structure and Infrastructure Engineering,2017,13(10):1350-1358.
[7]	陈月萍,胡强圣,张建飞,等.冻融后预应力混凝土正截面受弯承载力研究[J].建筑材料学报,2015,18(6):993-998.
[8]	郑捷,董立国,秦卿,等.冻融循环下钢筋混凝土框架梁柱中节点抗震性能试验研究[J].建筑结构学报,2016,37(10):73-81.
[9]	王斌,郑山锁,汪锋,等.考虑冻融损伤的钢筋混凝土框架节点恢复力模型研究[J].工程力学,2017(5):105-115.
[10]	YANG W,ZHENG S S,ZHANG D Y,et al.Seismic behaviors of squat reinforced concrete shear walls under freeze-thaw cycles:a pilot experimental study[J].Engineering Structures,2016,124(10):49-63.
[11]	郑山锁,甘传磊,秦卿,等.冻融循环后一字形短肢剪力墙抗震性能试验研究[J].工程力学,2016,33(12):94-103.
[12]	郑山锁,李强强,秦卿,等.冻融损伤低矮钢筋混凝土剪力墙恢复力模型研究[J].建筑结构学报,2018,39(3):111-119.
[13]	刘西拉,唐光普.现场环境下混凝土冻融耐久性预测方法研究[J].岩石力学与工程学报,2007,26(12):2412-2419.
[14]	BERTO L,SAETTA A,TALLEDO D.Constitutive model of concrete damaged by freeze-thaw action for evaluation of structural performance of RC elements[J].Construction and Building Materials,2015,98:559-569.
[15]	梁岩,罗小勇.耐久性损伤钢筋混凝土结构抗震性能研究进展[J].地震工程与工程振动,2014,34(2):113-119.
[16]	张新培.钢筋混凝土抗震结构非线性分析[M].北京:科学出版社,2003年.
[17]	赵国藩,周氐.高等钢筋混凝土结构学[M].北京:机械工业出版社,2005.
[18]	陈忠汉,朱伯龙,钮宏.斜向受力钢筋混凝土压弯构件的非线性分析[J].土木工程学报,1984(4):69-80.
[19]	朱伯龙,张琨联.矩形及环形截面压弯构件恢复力特性的研究[J].同济大学学报,1981(2):4-13.