کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
6751218 1430690 2018 12 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Seismic performance assessment of steel frame infilled with prefabricated wood shear walls
ترجمه فارسی عنوان
ارزیابی عملکرد لرزه ای از قاب فولادی با دیوارهای برش چوب پیش ساخته
کلمات کلیدی
ساختار ترکیبی فولادی، قاب ممتد مقاوم، دیوار برشی چوب تعامل دیوار قاب، عملکرد لرزه ای،
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی عمران و سازه
چکیده انگلیسی
Steel-timber hybrid structural systems offer a modern solution for building multi-story structures with more environmentally-friendly features. This paper presents a comprehensive seismic performance assessment for a kind of multi-story steel-timber hybrid structure. In such a hybrid structure, steel moment resisting frames are infilled with prefabricated light wood frame shear walls to serve as the lateral load resisting system (LLRS). In this paper, drift-based performance objectives under various seismic hazard levels were proposed based on experimental observations. Then, a numerical model of the hybrid structure considering damage accumulation and stiffness degradation was developed and verified by experimental results, and nonlinear time-history analyses were conducted to establish a database of seismic responses. The numerical results further serve as a technical basis for estimating the structure's fundamental period and evaluating post-yielding behavior and failure probabilities of the hybrid structure under various seismic hazard levels. A load sharing parameter was defined to describe the wall-frame lateral force distribution, and a formula was proposed and calibrated by the time-history analytical results to estimate the load sharing parameter. Moreover, earthquake-induced non-structural damage and residual deformation were also evaluated, showing that if designed properly, desirable seismic performance with acceptable repair effort can be obtained for the proposed steel-timber hybrid structural system.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Constructional Steel Research - Volume 140, January 2018, Pages 62-73
نویسندگان
, , , ,