BASE SHEAR COEFFICIENTS AND DISPLACEMENT AMPLIFICATION FACTORS OF TALL BUILDINGS WITH TUBULAR AND OUTRIGGER BRACING SYSTEMS ON FLEXIBLE SOIL

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BEHNAMFAR F.; MOHAJERI A.H.

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Paper Information

Journal: AMIRKABIR JOURNAL OF CIVIL ENGINEERING (AMIRKABIR) Year:2018 | Volume:49 | Issue:4 Page(s): 723-732

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Title

BASE SHEAR COEFFICIENTS AND DISPLACEMENT AMPLIFICATION FACTORS OF TALL BUILDINGS WITH TUBULAR AND OUTRIGGER BRACING SYSTEMS ON FLEXIBLE SOIL

Author(s)

BEHNAMFAR F. | MOHAJERI A.H. | Issue Writer Certificate

Keywords

TALL BUILDINGSQ1

FRAMEDQ1

TUBE AND OUTRIGGERQ1

BRACED SYSTEMSQ2

FLEXIBLE SOILQ1

DYNAMIC ANALYSISQ1

BASE SHEAR AND LATERAL DISPLACEMENTQ1

Abstract

Currently, the FRAMED-tube and outrigger-braced systems are known as two conventional load bearing systems in TALL BUILDINGS. These structural systems can be used in TALL BUILDINGS with high efficiency to provide the necessary lateral stiffness and strength against lateral forces due to earthquakes or strong storms. On the other hand, increasing the stiffness of these structures augments the relative importance of flexibility of the underlying soil and the resulting added displacements. This paper aims to study the seismic behavior of FRAMED-tube and outrigger-braced TALL BUILDINGS on FLEXIBLE SOIL in comparison to a rigid base. For this purpose, a range of 10 to 50-storey steel buildings with both structural systems on flexible and rigid bases are analyzed dynamically and the maximum base shear and lateral roof displacement are calculated. Also for comparing the benefit of each system, the total weight of steel used per system in each case is calculated. Results indicated that the design spectrum of Standard 2800 overestimates the response of the studied systems. Overall, the tubular system more economically provides the necessary stiffness and strength of the building system.

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APA: Copy

BEHNAMFAR, F., & MOHAJERI, A.H.. (2018). BASE SHEAR COEFFICIENTS AND DISPLACEMENT AMPLIFICATION FACTORS OF TALL BUILDINGS WITH TUBULAR AND OUTRIGGER BRACING SYSTEMS ON FLEXIBLE SOIL. AMIRKABIR JOURNAL OF CIVIL ENGINEERING (AMIRKABIR), 49(4 ), 723-732. SID. https://sid.ir/paper/165604/en

Vancouver: Copy

BEHNAMFAR F., MOHAJERI A.H.. BASE SHEAR COEFFICIENTS AND DISPLACEMENT AMPLIFICATION FACTORS OF TALL BUILDINGS WITH TUBULAR AND OUTRIGGER BRACING SYSTEMS ON FLEXIBLE SOIL. AMIRKABIR JOURNAL OF CIVIL ENGINEERING (AMIRKABIR)[Internet]. 2018;49(4 ):723-732. Available from: https://sid.ir/paper/165604/en

IEEE: Copy

F. BEHNAMFAR, and A.H. MOHAJERI, “BASE SHEAR COEFFICIENTS AND DISPLACEMENT AMPLIFICATION FACTORS OF TALL BUILDINGS WITH TUBULAR AND OUTRIGGER BRACING SYSTEMS ON FLEXIBLE SOIL,” AMIRKABIR JOURNAL OF CIVIL ENGINEERING (AMIRKABIR), vol. 49, no. 4 , pp. 723–732, 2018, [Online]. Available: https://sid.ir/paper/165604/en

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