IMPROVEMENT OF OPEN AND SEMI-OPEN CORE WALL SYSTEM IN TALL BUILDINGS BY CLOSING OF THE CORE SECTION IN THE LAST STORY

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KHEYRODDIN A.; ABDOLLAHZADEH D.; MASTALI M.

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Paper Information

Journal: INTERNATIONAL JOURNAL OF ADVANCED STRUCTURAL ENGINEERING Year:2014 | Volume:6 | Issue:3 Page(s): 1-12

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Information Journal Paper

Title

IMPROVEMENT OF OPEN AND SEMI-OPEN CORE WALL SYSTEM IN TALL BUILDINGS BY CLOSING OF THE CORE SECTION IN THE LAST STORY

Author(s)

KHEYRODDIN A. | ABDOLLAHZADEH D. | MASTALI M. | Issue Writer Certificate

Keywords

CORE WALL BEHAVIOR WARPING STRESS TORSIONAL RESISTANCE CLOSED SECTION CORE TALL BUILDINGS

Abstract

Increasing number of tall buildings in urban population caused development of tall building structures.One of the main lateral load resistant systems is core wall system in high-rise buildings. Core wall system has two important behavioral aspects where the first aspect is related to reduce the lateral displacement by the core bending resistance and the second is governed by increasing of the torsional resistance and core warping of buildings. In this study, the effects of closed section core in the last story have been considered on the behavior of models. Regarding this, all analyses were performed by ETABS 9.2.v software (Wilson and Habibullah). Considering (a) drift and rotation of the core over height of buildings, (b) total and warping stress in the core body, (c) shear in beams due to warping stress, (d) effect of closing last story on period of models in various modes, (e) relative displacement between walls in the core system and (f) site effects in far and near field of fault by UBC97 spectra on base shear coefficient showed that the bimoment in open core is negative in the last quarter of building and it is similar to wall–frame structures. Furthermore, analytical results revealed that closed section core in the last story improves behavior of the last quarter of structure height, since closing of core section in the last story does not have significant effect on reducing base shear value in near and far field of active faults.

Cites

OPTIMAL PLACEMENT OF ACTIVE BRACES BY USING PSO ALGORITHM IN NEAR-AND FAR-FIELD EARTHQUAKES

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APA: Copy

KHEYRODDIN, A., ABDOLLAHZADEH, D., & MASTALI, M.. (2014). IMPROVEMENT OF OPEN AND SEMI-OPEN CORE WALL SYSTEM IN TALL BUILDINGS BY CLOSING OF THE CORE SECTION IN THE LAST STORY. INTERNATIONAL JOURNAL OF ADVANCED STRUCTURAL ENGINEERING, 6(3), 1-12. SID. https://sid.ir/paper/319776/en

Vancouver: Copy

KHEYRODDIN A., ABDOLLAHZADEH D., MASTALI M.. IMPROVEMENT OF OPEN AND SEMI-OPEN CORE WALL SYSTEM IN TALL BUILDINGS BY CLOSING OF THE CORE SECTION IN THE LAST STORY. INTERNATIONAL JOURNAL OF ADVANCED STRUCTURAL ENGINEERING[Internet]. 2014;6(3):1-12. Available from: https://sid.ir/paper/319776/en

IEEE: Copy

A. KHEYRODDIN, D. ABDOLLAHZADEH, and M. MASTALI, “IMPROVEMENT OF OPEN AND SEMI-OPEN CORE WALL SYSTEM IN TALL BUILDINGS BY CLOSING OF THE CORE SECTION IN THE LAST STORY,” INTERNATIONAL JOURNAL OF ADVANCED STRUCTURAL ENGINEERING, vol. 6, no. 3, pp. 1–12, 2014, [Online]. Available: https://sid.ir/paper/319776/en

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