Journal of Jilin University(Engineering and Technology Edition) ›› 2022, Vol. 52 ›› Issue (8): 1817-1825.doi: 10.13229/j.cnki.jdxbgxb20210175

Previous Articles    

Seismic performance of earthquake⁃damaged precast concrete frame structures strengthened with BRBs

Wei-hong CHEN1(),Yan CHEN2,Qiu-rong HONG1,Shuang-shuang CUI2(),Xue-yuan YAN1   

  1. 1.College of Civil Engineering，Fuzhou University，Fuzhou 350108，China
    2.College of Civil Engineering，Fujian University of Technology，Fuzhou 350118，China
  • Received:2021-03-08 Online:2022-08-01 Published:2022-08-12
  • Contact: Shuang-shuang CUI E-mail:chenweihong1980@163.com;cshuangshuang@163.com

RICH HTML

 1   

PDF (PC)

121

Abstract:

The pseudo-static test was conducted to investigate the seismic behavior of earthquake-damaged precast concrete（PC） frame structures （the earthquake-damaged frame structures are within moderate damage） strengthened with buckling-restrained braces（BRBs） and to analyze the hysteretic energy dissipation of BRBs. A half-scale PC frame structure was fabricated. After it was pre-damaged by quasi-static loading， it was strengthened with BRBs， and then tested under pseudo-static loading again. The structural experimental phenomena and failure characteristics were observed and recorded. The structural seismic behavior， including bearing capacity， ductility， and energy dissipation， was evaluated. The test results show that after repairing with BRBs， the bearing capacity and energy dissipation can be significantly improved （the ultimate bearing capacity and energy dissipation increased by 51.3% and 68%， respectively）， other seismic behavior like the ductility coefficient can be recovered well （ductility coefficient restored to 88% of the initial ductility of the structure）； the earthquake-damaged PC frame structure strengthened with BRBs under pseudo-static loading exhibited a failure mode of beam-hinge with BRBs. The earthquake-damaged PC frame structures still had retrofit value and that the above retrofitting method was effective.

Key words: civil engineering, earthquake-damaged precast concrete frame structure, pseudo-static test, failure mode, buckling-restrained braces

CLC Number: 

  • TU375.4

Fig.1

Reinforcement drawing of beam-column"

Fig.2

Details of BRB specimens"

Fig.3

Structural strengthened process"

Table 1

Strength value of steel bars"

钢筋 种类直径 /mm屈服强度 /MPa抗拉强度 /MPa屈服应变 /10-6弹性模量/（N·mm-2）
HPB300831040515272.03×105
HRB4001240353019552.02×105
HRB4002043562920612.11×105

Fig.4

Load diagram"

Table 2

Value of load displacement control"

位移值/mm层间位移角循环次数
±11/15001
±21/7501
±31/5003
±51/3003
±71/2003
±101/1503
±151/1003
±201/753
±251/603
±301/503
±351/421
±401/371
±451/331
±501/301

Fig.5

Final failure of R zone beam"

Fig.6

Final failure of R zone column"

Fig.7

Final failure of L zone concrete"

Fig.8

Final failure of BRB"

Fig.9

Hysteretic curve"

Fig.10

Skeleton curve"

Fig.11

Stiffness curve"

Table 3

Ductility coefficient"

试件加载方向屈服位移 /mm屈服荷载 /kN

延性

系数

PC1框架推16.59288.92.70
拉16.71-275.4
PC2框架推18.27430.32.37
拉19.71-369.5

Fig.12

Energy dissipation index of structures"

Fig.13

Energy dissipation value"

Fig.14

Energy dissipation ratio"

Fig.15

Hysteretic curve of BRB-R"

Fig.16

Hysteretic curve of BRB-L"

Table 4

Hysteretic area"

工况层间 位移角BRB滞回面积/（kN·mm）PC2滞回面积/（kN·mm）比例/%
±3mm1/50017639245
±5mm1/3007441 09468
±7mm1/2001 1661 97759
±10mm1/1501 5673 48345
±15mm1/1002 7946 65442
±20mm1/754 3129 80144
±25mm1/606 06012 62548
±30mm1/506 97913 42252
1 匡亚川, 宋哲轩, 刘胤虎, 等. 新型装配式双舱综合管廊力学性能试验[J]. 吉林大学学报: 工学版, 2022, 52(3): 596-603.
Kuang Ya-chuan, Song Zhe-xuan, Liu Yin-hu, et al. Mechanical performance test of a new type of assembled double-cabin integrated pipe corridor[J]. Journal of Jilin University(Engineering and Technology Edition), 2022, 52(3): 596-603.
2 陈俊, 王韶纤, 胥卉, 等. 负弯矩作用下可拆卸预制装配式组合梁力学性能试验[J]. 吉林大学学报: 工学版, 2022,52(3): 604-614.
Chen Jun, Wang Shao-xian, Xu Hui, et al. Test on mechanical properties of detachable prefabricated composite beam under negative bending moment[J]. Journal of Jilin University(Engineering and Technology Edition), 2022, 52(3): 604-614.
3 高向宇, 杜海燕, 张慧, 等. 国标Q235热轧钢材防屈曲支撑抗震性能试验研究[J]. 建筑结构, 2008, 38(3): 91-95.
Gao Xiang-yu, Du Hai-yan, Zhang Hui, et al. Experimental study on seismic performance of buckling-restrained brace made of hot-rolled steel in mainland China[J]. Building Structure, 2008, 38(3): 91-95.
4 Yi Q, Francesca B, Edoardo M M, et al. Full-scale hybrid test for realistic verification of a seismic upgrading technique of RC frames by BRBs[J]. Earthquake Engineering and Structural Dynamics, 2020, 49(14): 1452-1472.
5 Qu Z, Kishiki S, Sakata H, et al. Subassemblage cyclic loading test of RC frame with buckling restrained braces in zigzag configuration[J]. Earthquake Engineering and Structural Dynamics, 2013, 42(7): 1087-1102.
6 Akcelyan S, Lignos D G. Rate-dependent model for simulating the hysteretic behavior of low-yield stress buckling-restrained braces under dynamic excitations[J]. Engineering Structures, 2021, 230: 111659.
7 Li B B, Wang J F, Yang J, et al. Pseudo-dynamic response and analytical evaluation of blind bolted CFT frames with BRBs[J]. Journal of Constructional Steel Research, 2020, 166: 101513.
8 欧阳煜, 张文杰. 防屈曲耗能支撑加固钢筋混凝土框架抗震效果分析[J]. 工业建筑, 2009, 39(11): 118-121, 128.
Yu Ou-yang, Zhang Wen-jie. Analysis of the seismic effects for the seismic retrofit of a concrete frame with buckling-restrained braces[J]. Industrial Construction, 2009, 39(11): 118-121, 128.
9 王静峰, 王新乐, 李贝贝, 等. 屈曲约束支撑装配式混凝土框架结构抗震性能试验研究[J]. 土木工程学报, 2018, 51(12): 72-80.
Wang Jing-feng, Wang Xin-le, Li Bei-bei, et al. Experimental studies on seismic performance of prefabricated concrete frame structures with buckling-restrained braces[J]. China Civil Engineering Journal, 2018, 51(12): 72-80.
10 乔金丽, 侯双, 任泽民, 等. 屈曲约束支撑钢筋混凝土框架结构抗震性能试验研究[J]. 建筑结构, 2017, 47(8): 29-32, 58.
Qiao Jin-li, Hou Shuang, Ren Ze-min, et al. Experimental study on seismic performance of RC frame structure with buckling restrained brace[J]. Building Structure, 2017, 47(8): 29-32, 58.
11 王婷, 杨勇, 刘如月, 等. 防屈曲支撑加固震后钢筋混凝土框架抗震性能试验研究[J]. 工业建筑, 2016, 46(4): 18-25.
Wang Ting, Yang Yong, Liu Ru-yue, et al. Seismic performance of reinforced-concrete frames retrofitted with buckling-restrained braces after earthquake[J]. Industrial Construction, 2016, 46(4): 18-25.
[1] Zhao-yi HE,Jin-feng LI,Wen ZHOU,Zhi-tao GUAN. Dynamic modulus of porous asphalt concrete and its prediction model [J]. Journal of Jilin University(Engineering and Technology Edition), 2022, 52(6): 1375-1385.
[2] Hai-ji YANG,Jia-long HE,Guo-fa LI,Li-ding WANG,Si-yuan WANG. Application of improved failure mode and effect analysis method in risk analysis of spindle system of machining center [J]. Journal of Jilin University(Engineering and Technology Edition), 2022, 52(2): 345-352.
[3] Li-juan YU,Ang LIU,Zhao-jun YANG,Hai-long TIAN,Chuan-hai CHEN,Jing-wen GAO. Reliability analysis of numerical control machine tools based on analytic network process and date enevalopment analys [J]. Journal of Jilin University(Engineering and Technology Edition), 2022, 52(2): 400-408.
[4] Gui-xiang SHEN,Jun ZHENG,Ying-zhi ZHANG,Jie SONG,Zhe-wen LI. Risk analysis of machining center failure mode based on multi⁃attribute group decision making [J]. Journal of Jilin University(Engineering and Technology Edition), 2022, 52(2): 338-344.
[5] Shuan-cheng GU,Hong-bin NIE. Analysis of damage model of mortars strengthened with CFRP under ultimate freeze⁃thaw and load [J]. Journal of Jilin University(Engineering and Technology Edition), 2021, 51(6): 2108-2120.
[6] Jing ZHOU,Ya-jun LI,Wei-feng ZHAO,Zong-jian LUO,Guo-bin BU. Eccentric compression behavior of bamboo⁃plywood and steel⁃tube dual⁃confined dust⁃powder concrete columns [J]. Journal of Jilin University(Engineering and Technology Edition), 2021, 51(6): 2096-2107.
[7] Guang-tai ZHANG,Lu-yang ZHANG,Guo-hua XING,Yin-long CAO,Bao YI. Seismic performance of steel⁃polypropylene hybrid fiber reinforced concrete shear wall [J]. Journal of Jilin University(Engineering and Technology Edition), 2021, 51(3): 946-955.
[8] Kai GAO,Gang LIU. Effective strength improvement of global critical strength branch and bound method [J]. Journal of Jilin University(Engineering and Technology Edition), 2021, 51(2): 597-603.
[9] Liu LIU,Wei-xing FENG. Field measurement and calculation analysis of tunnel shield tunnel construction based on NNBR model [J]. Journal of Jilin University(Engineering and Technology Edition), 2021, 51(1): 245-251.
[10] Wei-xiao XU,Yang CHENG,Wei-song YANG,Jia-chang JU,De-hu YU. Quasi-static test of RC frame-seismic wall dual structural system [J]. Journal of Jilin University(Engineering and Technology Edition), 2021, 51(1): 268-277.
[11] De-shan SHAN,Xiao ZHANG,Xiao-yu GU,Qiao LI. Analytical method for elongation of stayed-cable with catenary configuration [J]. Journal of Jilin University(Engineering and Technology Edition), 2021, 51(1): 217-224.
[12] Su-duo XUE,Jian LU,Xiong-yan LI,Ren-jie LIU. Influence of grid⁃jumping arrangement on static and dynamic performance of annular crossed cable⁃truss structure [J]. Journal of Jilin University(Engineering and Technology Edition), 2020, 50(5): 1687-1697.
[13] Bo WANG,Yuan-zheng DONG,Li-xin DONG. Calculation of basic wind pressure based on short⁃term wind speed data [J]. Journal of Jilin University(Engineering and Technology Edition), 2020, 50(5): 1739-1746.
[14] Ming LI,Hao-ran WANG,Wei-jian ZHAO. Experimental of loading-bearing capacity of one-way laminated slab with shear keys [J]. Journal of Jilin University(Engineering and Technology Edition), 2020, 50(2): 654-667.
[15] Peng-hui WANG,Hong-xia QIAO,Qiong FENG,Hui CAO,Shao-yong WEN. Durability model of magnesium oxychloride-coated reinforced concrete under the two coupling factors [J]. Journal of Jilin University(Engineering and Technology Edition), 2020, 50(1): 191-201.
Viewed
Full text


Abstract

Cited
  Shared   
  Discussed   
No Suggested Reading articles found!
Copyright © Journal of Jilin University(Engineering and Technology Edition), All Rights Reserved.
Tel: +86-431-85095297　Fax: +86-431-85094074　E-mail: xbgxb@jlu.edu.cn
Powered by Beijing Magtech Co. Ltd