1403/01/09
حبیب اکبرزاده بنگر

حبیب اکبرزاده بنگر

مرتبه علمی: دانشیار
ارکید:
تحصیلات: دکترای تخصصی
اسکاپوس:
دانشکده: دانشکده مهندسی و فناوری
نشانی:
تلفن: 09111165785

مشخصات پژوهش

عنوان
A novel method for quantifying damage to cast‐in‐place self‐centering concrete stepping walls
نوع پژوهش
JournalPaper
کلیدواژه‌ها
cast-in-place stepping walls, damage index, performance objectives, plastic hinge length, prestress ratio, self-centering
سال
2018
مجله Structural Concrete
شناسه DOI
پژوهشگران Abozar Jafari ، mohammad reza Ghasemi ، Habib Akbarzadeh Bengar ، behroz Hassani

چکیده

In this paper, a novel method is presented for quantifying damage to cast‐in‐place self‐centering concrete stepping walls via a proposed numerical model. By conducting a parametric study, an equation is derived to estimate the plastic hinge length of the wall as a function of the axial prestress ratio. To estimate the state of damage in various parts of the wall, including boundary element, wall‐footing interface, and plastic hinge zone, different ratios were introduced. In order to calculate the ratios, damage was calculated at various levels of drift for different values of the prestress ratio. The estimated damage was then compared with the expected damage for the basic performance objective to calibrate the ratios. According to the results, the proposed method can provide insight and valuable information about the probable state of damage. Moreover, to satisfy the basic performance objective requirements, the value of prestress ratio should be limited to 0.125.