工程可靠性与随机力学国际联合研究中心

2024年第3期（总第77期）学术报告

工程力学研究中心第27期学术报告

土木工程学院院级高等讲堂

报告主题

TOPIC

框架结构倒塌模式与抗震易损性分析的集中损伤力学模型

Collapse Modes and Seismic Fragility of Frame Structures Using Lumped Damage Mechanics Models

报告人

SPEAKER

Dr. André T. Beck

巴西圣保罗大学副教授

科技部高端外国专家

报告时间

TIME

2024年4月23日（周二）下午15:30-16:30

报告地点

VENUE

同济大学土木大楼 A804

主持人

CHAIR

陈建兵教授、彭勇波教授

联系人：律梦泽博士

报告摘要

Abstract

Engineering demand parameters typically employed in Performance-Based Engineering, like interstory drifts and plastic rotations, are indirect indicators of ultimate element failure. For frame structures, Lumped Damage Mechanics (LDM) models can be employed, which lump plastic damage into hinges at beam element ends. The stiffness degradation at damage hinges allows load redistribution within hyperstatic structures. We apply stochastic seismic loading to symmetrical and asymmetrical frames, and track the evolution of global collapse mechanisms. We obtain realistic fragility curves for the global collapse modes. LDM models considered herein include reinforced concrete elements, and local buckling of tubular cross-sections.

报告人简介

Speaker Bio

Dr. André T. Beck is an associate professor at the Structural Engineering Department, University of São Paulo, Brazil. Prof. Beck holds a Ph.D. in Civil & Environmental Engineering from the University of Newcastle, Australia. His research interests include structural reliability analysis, performance-based engineering and structural optimization considering life-cycle costs. Dr. Beck has conducted major R&D projects for PETROBRAS and VALE, and has been sponsored by several research grants from CAPES, CNPq and FAPESP. Dr. Beck has supervised over 30 Masters and Ph.D. students, and is an active reviewer for nearly seventy international journals. He has published over 140 papers in international peer-reviewed journals. Dr. Beck is a member of the Scientific Committee of the journals Structural Safety, Reliability Engineering & System Safety, ASCE-ASME Journal of Risk and Uncertainty in Engineering Systems and associate Editor of the Journal of the Brazilian Society of Mechanical Sciences and Engineering.