INCONSISTENCY OF FORCE-BASED DESIGN PROCEDURE

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SMITH R.S.H.; TSO W.K.

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Journal Paper

Paper Information

Journal: Journal of Seismology and Earthquake Engineering Year:2002 | Volume:4 | Issue:1 Page(s): 47-54

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Information Journal Paper

Title

INCONSISTENCY OF FORCE-BASED DESIGN PROCEDURE

Author(s)

SMITH R.S.H. | TSO W.K. | Issue Writer Certificate

Keywords

R/C FLEXURAL WALLSQ4

COUPLED STRENGTH-STIFFNESS RELATIONQ4

FORCE DISPLACEMENT BASED DESIGN PROCEDUREQ4

Abstract

The force-based seismic design procedure currently used assumes that the stiffness of the lateral force resisting elements is essentially independent of their strength. As a result, the period of the structure will remain the same as originally perceived, irrespective of how much the seismic base shear is reduced from the elastic strength. Current studies show that for a large class of reinforced concrete members such as piers, flexural walls and ductile moment resisting frames, their strength and stiffness are coupled. This leads to inconsistency between the assumed stiffness and the actual stiffness of the structure as designed. Using a wall structure as an example, this study examines the consequence of such inconsistency as it affects the estimation of ductility demand and seismic displacement of the structure, and points out the implication of continual use of the current force-based procedure. It is shown that the displacement- based procedure is a more simple approach to determine the seismic design strength of structures with stiffness-strength coupled elements.

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APA: Copy

SMITH, R.S.H., & TSO, W.K.. (2002). INCONSISTENCY OF FORCE-BASED DESIGN PROCEDURE. JOURNAL OF SEISMOLOGY AND EARTHQUAKE ENGINEERING, 4(1), 47-54. SID. https://sid.ir/paper/112356/en

Vancouver: Copy

SMITH R.S.H., TSO W.K.. INCONSISTENCY OF FORCE-BASED DESIGN PROCEDURE. JOURNAL OF SEISMOLOGY AND EARTHQUAKE ENGINEERING[Internet]. 2002;4(1):47-54. Available from: https://sid.ir/paper/112356/en

IEEE: Copy

R.S.H. SMITH, and W.K. TSO, “INCONSISTENCY OF FORCE-BASED DESIGN PROCEDURE,” JOURNAL OF SEISMOLOGY AND EARTHQUAKE ENGINEERING, vol. 4, no. 1, pp. 47–54, 2002, [Online]. Available: https://sid.ir/paper/112356/en

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