原文传递
Equivalent Viscous Damping for Steel Moment-Resisting Frames with Cross-Laminated Timber Infill Walls
| 题名： | Equivalent Viscous Damping for Steel Moment-Resisting Frames with Cross-Laminated Timber Infill Walls |
| 正文语种： | 英文 |
| 作者： | M. A. Bezabeh;S. Tesfamariam;S. F. Stiemer |
| 作者单位： | University Way, Kelowna, BC, Canada;School of Engineering, Univ;Dept, of Civil Engineering, Univ |
| 关键词： | Cross-laminated timber; Direct displacement-based design; Equivalent viscous damping; Steel moment-resisting frames; Metal and composite structures |
| 摘要： | In the direct displacement-based design method, energy dissipative capacity of structures can be represented by an equivale nt viscous damping (EVD). A number of studies have been reported in the formulation of EVD for different structural systems and hysteretic models. In this paper, an EVD model is developed and calibrated for steel-timber hybrid structures, where cross-laminated timber (CLT) shear panels are used as an infill in steel moment-resisting frames (SMRFs). To develop the EVD model, 243 single-story, single-bay CLT-infilled SMRFs analytical models are subject to semi-static cyclic analysis. Different model parameters of the hybrid structure are varied: gap between CLT panel and steel frame, bracket (connection) spacing, CLT panel thickness and strength, and postyield stiffness ratio of steel members. The EVD of each model was computed from the hysteretic responses based on an area-based approach. The design of computer experiments and response surface methodology were utilized to formulate the desired relationship between coefficients of EVD-ductility law and the model parameters. In order to create displacement compatibility between the equivalent linear system and time history, an iterative nonlinear time history procedure is adopted to calibrate the EVD-ductility law of the models. As a result, a new EVD-ductility law is presented that can be used in a displacement-based design of the steel-timber hybrid structure. DOI: 10.106l/(ASCE)ST.1943-541X.0001316. © 2015 American Society of Civil Engineers. |
| 出版日期： | 2016.01 |
| 出版年： | 2016 |
| 期刊名称： | Journal of Structural Engineering |
| 卷： | Vol.142 |
| 期： | NO.01 |
| 页码： | 04015080 |
相关文献
- Equivalent Viscous Damping of Cross-Laminated Timber Structural Archetypes
- Seismic Performance of Timber–Steel Hybrid Structures. II: Calibration of Performance Objectives and Design Method
- Cyclic Testing and Repair of Coupled CLT Walls with Steel Link Beams
- Seismic Base Shear Modification Factors for Timber-Steel Hybrid Structure: Collapse Risk Assessment Approach
- Lateral-Load Resistance of Cross-Laminated Timber Shear Walls
- Displacement-Based Design of Hybrid RC–Timber Structure: Seismic Risk Assessment
检索历史
应用推荐
