Study of a New Macro-Finite Element Model for Seismic Performance of RC Shear Walls Using Quasi-Static Experiments

Abstract

Quasi-static tests are described of nine reinforced concrete (R/C) shear walls under cyclic lateral loading. The relationship between force and displacement is obtained to verify the macro-finite element model for R/C shear wall presented. The corresponding formulations for this model are given. By comparing the failure process and behaviour of the wall specimens under different axial compression ratios (the axial compression ratio is equal to the vertical load divided by the product of the concrete design compressive strength and the section area) and shear-span ratios, with the analyses of test and hysteretic curves, it can be concluded that with the increase of axial compression ratio to some extent, the bearing capacity of the shear wall will increase if the shear-span ratio of shear walls is the same, but the ductility of the walls will decrease and that degradations of strength and stiffness are also more serious. At the same time, the failure behaviour of shear walls will be changed from shear failure to bending failure with the enhancement of shear-span ratio, the bearing-load capacity will decrease and the ductility and energy absorption characteristics of shear walls will be strengthened.

Keywords

shear wall quasi-static test hysteretic curve seismic performance macro-finite element model

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References

Azzato

and Vulcano

(1996). “Modeling of RC frame-wall structures for nonlinear seismic analysis”, Proceeding of 11th World Conference on Earthquake Engineering, paper No.1411.

GBJ50010 (2002) Chinese Code for Design of Concrete Structures, pp. 189–197.

Colitti

(1993). “Shear behavior of RC structure walls”, Journal of Structural Engineering, ASCE, Vol. 119, No. 3, pp. 728–746.

Shibata

Shibuya

and Saito

(1992). “3-D inelastic earthquake response of RC frames with shear walls”, Proceeding of 10th World Conference on Earthquake Engineering, pp. 4303–4308.

Jiang

H.J.

and Lu

X.L.

(2003). “Research on application of macroscopic shear wall model”, Earthquake Engineering and Engineering Vibration, Vol. 23, No. 1, pp. 38–43.

Jiang

H.J.

and Lu

X.L.

(1998). “Analysis of shear wall structures using a type of wall element”, Earthquake Engineering and Engineering Vibration, Vol. 18, No. 3, pp. 40–48.

Jiang

J.R.

and Li

X.D.

(1997). “State-of-art of nonlinear seismic response analysis for R/C frame-wall structure”, World Information on Earthquake Engineering, Vol. 13, No. 2, pp. 30–35.

Kabeyaawa

Shioara

T.H.

and Otani

(1984). “U.S.-Japan cooperative research on R/C full-scale building test, part 5: Disscussion of dynamic response system”, Proceeding of 8th World Conference on Earthquake Engineering, pp. 627–634.

and Li

H.N.

(2002). “Analysis of macroscopic finite unit models for R/C shear wall”, Journal of Southeast University, Vol. 32, No. Sup, pp. 291–294.

10.

G.Q.

Zhou

X.M.

and Ding

(2000). “Models of reinforced concrete shear walls for nonlinear dynamic analysis”, World Information on Earthquake Engineering, Vol. 16, No. 2, pp. 13–18.

11.

H.N.

Wang

and Li

(2002). “Experiment on characteristics of Multi-dimensional restoring forces of reinforced concrete frame columns”, Journal of Southeast University, Vol.32, No.5, pp. 728–732.

12.

Linde

and Bachmann

(1994). “Dynamic modeling and design of earthquake-resistant walls”, Earthquake Engineering and Structural Dynamics, Vol. 23, No. 12, pp. 1331–1350.

13.

Milev

J.I.

(1996). “Two dimensional analytical model of reinforce concrete shear walls”, Proceeding of 11^th WCEE

14.

Sun

J.J.

(1994). “Review of models for nonlinear analysis of R/C shear wall”, World Information on Earthquake Engineering, No. 1, pp. 43–46.

15.

Vulcano

(1992). “Use of wall macroscopic models in the nonlinear analysis of RC frame-wall”, Proceeding 10th World Conference on Earthquake Engineering, pp. 4309–4312.

16.

Vulcano

and Bertero

V.V.

(1987). “Analytical models for predicting the lateral response of RC shear walls: Evaluation of their reliability”, Report UCB/EERC-89/19, University of California.

17.

Vulcano

Bertero

V.V.

and Colotti

(1988). “Analytical modeling of R/C structure walls”, Proceeding of 9th World Conference on Earthquake Engineering, pp. 41–46.

18.

Wang

H.B.

Wang

M.F.

and Shen

P.S.

(2000). “Nonlinear analysis of seismic responses for shear wall structure with opening holes”, Seismic Engineering, No. 3, pp. 3–6.