Journal of Jilin University(Engineering and Technology Edition) ›› 2021, Vol. 51 ›› Issue (1): 268-277.doi: 10.13229/j.cnki.jdxbgxb20191138

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Quasi-static test of RC frame-seismic wall dual structural system

Wei-xiao XU1,2(),Yang CHENG1,2,Wei-song YANG1,2,Jia-chang JU1,2,De-hu YU1,2   

  1. 1.School of Civil Engineering，Qingdao University of Technology，Qingdao 266033，China
    2.Cooperative Innovation Center of Engineering Construction and Safety in Shandong Blue Economic Zone，Qingdao University of Technology，Qingdao 266033，China
  • Received:2019-12-15 Online:2021-01-01 Published:2021-01-20

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Abstract:

In order to study the seismic performance of two different forms of structures， i.e. "functional integration" and "functional separation" in the Reinforce Concrete （RC） frame-seismic wall dual structure system， quasi-static tests of two 1/3 scale frame-seismic wall specimens with two single-story and two-bay were carried out. The damage development， hysteretic behavior， stiffness degradation， energy dissipation capacity， ductility and other seismic behaviors of the seismic wall were investigated as the wall mainly bears the lateral resistance but bears a small part of the vertical load， and as the wall bears both the lateral resistance and the vertical load. The performance of the specimens was also studied by ABAQUS finite element software simulation， and the results are consistent with the test results．The results of this study show that the structure has better ductility， energy dissipation capacity and damage development process when the load-bearing function and the anti-lateral function of the seismic wall are separated.

Key words: civil engineering, RC frames, dual structural system, functional separation, quasi-static test

CLC Number: 

  • TU375.4

Fig.1

Plan of prototype"

Fig.2

Dimensions of specimens"

Fig.3

Design details of specimens"

Table 1

Mechanical properties of reinforcements"

钢筋直径/mm屈服强度/MPa极限强度/MPa
6452622
8414556

Fig.4

Loading patterns of specimens"

Fig.5

Loading scheme of test"

Fig.6

Measurement layout of specimens"

Fig.7

Damage mode of beams"

Fig.8

Damage mode of seismic walls"

Fig.9

Hysteretic loops of specimens"

Fig.10

Skeleton curves of specimens"

Fig.11

Stiffness degeneration of specimens"

Table 2

Comparisons of characteristic points and ductility factor"

参数FW1FW2
开裂位移/mm1.981.98
开裂荷载/kN50.7353.69
屈服位移/mm9.999.14
屈服荷载/kN151.07155.22
极限位移/mm2519.83
极限荷载/kN182.39182.55
破坏位移/mm34.1025.34
破坏荷载/kN155.03155.17
延性系数3.412.77

Fig.12

Energy dissipation of specimens"

Table 3

Energy dissipation capacity of specimens kN·mm"

试件

编号

耗能能力总耗能
屈服极限破坏
FW1592.003370.784531.8623397.17
FW2735.762734.253057.1017421.10

Fig.13

Uniaxial stress-strain relationship under reciprocating loading"

Fig.14

Comparisons of hysteretic loops"

Fig.15

Comparisons of skeleton curves"

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