Effects of unbonded steel layout on seismic behavior of post-tensioned precast concrete shear walls

Name: Effects of unbonded steel layout on seismic behavior of post-tensioned precast concrete shear walls
Author: Erkmen, Bülent

İsim	Effects of unbonded steel layout on seismic behavior of post-tensioned precast concrete shear walls
Yazar	Erkmen, Bülent
Basım Tarihi:	2020-10
Basım Yeri	- Springer Nature
Konu	Unbonded post-tensioned, Shear wall, Steel layout, Coefficient of shear friction
Tür	Süreli Yayın
Dil	İngilizce
Dijital	Evet
Yazma	Hayır
Kütüphane:	Özyeğin Üniversitesi
Demirbaş Numarası	1570-761X
Kayıt Numarası	6e7da434-35bc-41e1-a096-9e3438ae954e
Lokasyon	Civil Engineering
Tarih	2020-10
Örnek Metin	Unbonded post-tensioned precast connections have been studied widely in various applications and shown to be promising seismic resisting systems with superior seismic performance including exceptional self-centering capability and minimized structural damage. In this paper, effects of unbonded post-tensioned steel layout of precast concrete shear walls on seismic performance of a typical five-story precast concrete parking garage structure with the walls being the only lateral load resisting system is studied. The seismic behavior of the walls is determined using static nonlinear push-over, cyclic, and nonlinear time-history dynamic analyses under both the design and survival level ground motions. Three prototype unbonded post-tensioned precast concrete shear walls are designed with different unbonded post-tensioning steel tendon layout. Roof drift, post-tensioning force, and base shear and normal forces at the wall-foundation horizontal joint are monitored, and the demand for the coefficient of shear friction along the horizontal joint is calculated. The results show that seismic behavior of unbonded post-tensioned precast shear walls, in particular, maximum building drift, permanent losses in post-tensioning steel force, and coefficient of shear friction, is significantly influenced by layout of unbonded post-tensioned steel. The results and findings presented are valuable to improve design guidelines and provide a useful reference for practical applications of unbonded post-tensioned precast concrete connections in seismic applications.
DOI	10.1007/s10518-020-00986-x
Cilt	19

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Effects of unbonded steel layout on seismic behavior of post-tensioned precast concrete shear walls

Yazar Erkmen, Bülent

Basım Tarihi 2020-10

Basım Yeri - Springer Nature

Konu Unbonded post-tensioned, Shear wall, Steel layout, Coefficient of shear friction

Tür Süreli Yayın

Dil İngilizce

Dijital Evet

Yazma Hayır

Kütüphane Özyeğin Üniversitesi

Demirbaş Numarası 1570-761X

Kayıt Numarası 6e7da434-35bc-41e1-a096-9e3438ae954e

Lokasyon Civil Engineering

Tarih 2020-10

Örnek Metin Unbonded post-tensioned precast connections have been studied widely in various applications and shown to be promising seismic resisting systems with superior seismic performance including exceptional self-centering capability and minimized structural damage. In this paper, effects of unbonded post-tensioned steel layout of precast concrete shear walls on seismic performance of a typical five-story precast concrete parking garage structure with the walls being the only lateral load resisting system is studied. The seismic behavior of the walls is determined using static nonlinear push-over, cyclic, and nonlinear time-history dynamic analyses under both the design and survival level ground motions. Three prototype unbonded post-tensioned precast concrete shear walls are designed with different unbonded post-tensioning steel tendon layout. Roof drift, post-tensioning force, and base shear and normal forces at the wall-foundation horizontal joint are monitored, and the demand for the coefficient of shear friction along the horizontal joint is calculated. The results show that seismic behavior of unbonded post-tensioned precast shear walls, in particular, maximum building drift, permanent losses in post-tensioning steel force, and coefficient of shear friction, is significantly influenced by layout of unbonded post-tensioned steel. The results and findings presented are valuable to improve design guidelines and provide a useful reference for practical applications of unbonded post-tensioned precast concrete connections in seismic applications.

DOI 10.1007/s10518-020-00986-x

Cilt 19