NONLINEAR SEISMIC BEHAVIOR OF RC FRAMES WITH RC BRACES

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KHALOU A.R.; MAHDI MOHSENI M.

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Journal Paper

Paper Information

Journal: ASIAN JOURNAL OF CIVIL ENGINEERING (BUILDING AND HOUSING) Year:2008 | Volume:9 | Issue:6 Page(s): 577-592

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Title

NONLINEAR SEISMIC BEHAVIOR OF RC FRAMES WITH RC BRACES

Author(s)

KHALOU A.R. | MAHDI MOHSENI M. | Issue Writer Certificate

Keywords

CONCRETE BRACE

SEISMIC

ENERGY DISSIPATION

DUCTILITY

STIFFNESS

Abstract

Braced frames, besides other structural systems, such as moment resisting frames or shear walls, have been an effective and valuable method to enhance structures against lateral loads. In wind or SEISMIC excitations, inclined elements react as truss web elements which would bear compression or tension stresses. This axial reaction results in less moments and therefore smaller sizes in beam and column sections with respect to members in similar moment resisting frame. However, low tensile strength of concrete material, made it a challenge to use in inclined members. In practice, there have been various methods to consider this defect such as disengagement of brace elements in tension or utilization of prestressed braces.The purpose of this article is to study the nonlinear response of reinforced concrete frames which contain reinforced CONCRETE BRACEs as the major structural elements against earthquake loads. The advantages of nonlinear behavior in reinforced concrete elements and their adequate energy absorption in cyclic loading are taken into account. Also STIFFNESS and strength degradation of structural members under cyclic loading is considered.Two different braced frames with K and X braces are analyzed numerically for four, eight and twelve story buildings. This study focuses on evaluation of strength, STIFFNESS, DUCTILITY and energy absorption of reinforced CONCRETE BRACEd frames and comparison with similar moment resisting frames and frames with shear wall. Results are plotted in diagrams and discussed extensively. According to this study it is concluded that besides effective lateral STIFFNESS rising in reinforced CONCRETE BRACEd frames, there is a considerable amount of ENERGY DISSIPATION during earthquake loading.

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APA: Copy

KHALOU, A.R., & MAHDI MOHSENI, M.. (2008). NONLINEAR SEISMIC BEHAVIOR OF RC FRAMES WITH RC BRACES. ASIAN JOURNAL OF CIVIL ENGINEERING (BUILDING AND HOUSING), 9(6), 577-592. SID. https://sid.ir/paper/298798/en

Vancouver: Copy

KHALOU A.R., MAHDI MOHSENI M.. NONLINEAR SEISMIC BEHAVIOR OF RC FRAMES WITH RC BRACES. ASIAN JOURNAL OF CIVIL ENGINEERING (BUILDING AND HOUSING)[Internet]. 2008;9(6):577-592. Available from: https://sid.ir/paper/298798/en

IEEE: Copy

A.R. KHALOU, and M. MAHDI MOHSENI, “NONLINEAR SEISMIC BEHAVIOR OF RC FRAMES WITH RC BRACES,” ASIAN JOURNAL OF CIVIL ENGINEERING (BUILDING AND HOUSING), vol. 9, no. 6, pp. 577–592, 2008, [Online]. Available: https://sid.ir/paper/298798/en

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