PERFORMANCE OF MEDIUM DUCTILE REINFORCED CONCRETE FRAMES AND THEIR STRENGTHENING BY VARIOUS METHODS

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TASNIMI A.A.; BASHIRI A.

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Paper Information

Journal: MODARES TECHNICAL AND ENGINEERING Year:2009 | Volume:- | Issue:36 (SPECIAL ISSUE ON CIVIL ENGINEERING) Page(s): 129-145

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Title

PERFORMANCE OF MEDIUM DUCTILE REINFORCED CONCRETE FRAMES AND THEIR STRENGTHENING BY VARIOUS METHODS

Author(s)

TASNIMI A.A. | BASHIRI A. | Issue Writer Certificate

Keywords

PERFORMANCE LEVELQ2

R/C MOMENT RESISTING FRAMEQ2

MEDIUM DUCTILITYQ3

STRENGTHENINGQ3

TARGET POINTQ3

Abstract

In this research the need for evaluation and STRENGTHENING of the medium ductile reinforced concrete moment resisting frames is investigated. This type of RC frames is widely used in Iran while their vulnerability in earthquake prone area and their PERFORMANCE LEVEL is not clearly known for designers.According to the Iranian guidelines for seismic rehabilitation of the existing buildings, twelve medium ductile RC frames differing in span, height and located in seismic hazardous regions are analyzed using nonlinear static analysis. Using the capacity spectrum method and the displacement coefficient method, the TARGET POINT for all frames was obtained and compared with each other. Performances of each structural element as well as that of whole frames are evaluated. Results indicate that the frames having lesser spans (high aspect ratio) are weak and some of the structural elements are not able to fulfill the acceptance criteria given in the guidelines.In order to obtain the most corrected method of STRENGTHENING the frames, one frame was selected and strengthened by two different methods. In the first method, adding shear wall, steel brace and masonry infill panels was used, and in the second, the weight of structure was reduced by removing tow story from the top of it. The PERFORMANCE LEVEL of the strengthened frames was obtained by nonlinear static analysis and compared with each other. The obtained results indicate that best performance is obtained by adding shear wall to the frames.

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APA: Copy

TASNIMI, A.A., & BASHIRI, A.. (2009). PERFORMANCE OF MEDIUM DUCTILE REINFORCED CONCRETE FRAMES AND THEIR STRENGTHENING BY VARIOUS METHODS. MODARES TECHNICAL AND ENGINEERING, -(36 (SPECIAL ISSUE ON CIVIL ENGINEERING)), 129-145. SID. https://sid.ir/paper/24955/en

Vancouver: Copy

TASNIMI A.A., BASHIRI A.. PERFORMANCE OF MEDIUM DUCTILE REINFORCED CONCRETE FRAMES AND THEIR STRENGTHENING BY VARIOUS METHODS. MODARES TECHNICAL AND ENGINEERING[Internet]. 2009;-(36 (SPECIAL ISSUE ON CIVIL ENGINEERING)):129-145. Available from: https://sid.ir/paper/24955/en

IEEE: Copy

A.A. TASNIMI, and A. BASHIRI, “PERFORMANCE OF MEDIUM DUCTILE REINFORCED CONCRETE FRAMES AND THEIR STRENGTHENING BY VARIOUS METHODS,” MODARES TECHNICAL AND ENGINEERING, vol. -, no. 36 (SPECIAL ISSUE ON CIVIL ENGINEERING), pp. 129–145, 2009, [Online]. Available: https://sid.ir/paper/24955/en

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