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【课外学习项目】】→【科研训练】→学术报告:Steel Moment Resisting Frame Connections in the United States
学术报告:Steel Moment Resisting Frame Connections in the United States

科研训练  加入时间:2017/5/26 12:53:31  发布:    点击:264

时间:2017年6月5日(星期一)  下午3:30

地点:江枫校区土木工程学院北楼报告厅


报告题目:Steel Moment Resisting Frame Connections in the United States

报告人:Matthew R. Eatherton


时间:2017年6月5日星期一下午3:30
地点:江枫校区土木工程学院北楼报告厅

学术报告摘要:
Steel moment resisting frames are a popular structural system for commercial buildings because they minimize obstructions in the story of a building and thus maximize the flexibility with which the floor plan can be adjusted.  There is a long history of the use of steel moment resisting frames that dates back to the 1800’s.  However, in the 1990’s, two major earthquakes exposed vulnerability of these connections to fracture during earthquakes.  Since then, testing requirements have been adopted and the design and construction of steel moment connections has changed substantially.  Furthermore, substantial research has been conducted over the past 20 years with objectives that range from ensuring adequate ductility to prevent collapse to creating moment frames with advanced performance such as self-centering (i.e. eliminating residual drifts after the earthquake stops). 

This presentation will provide some of the history of steel moment frames in the United States and describe some of the recent research directions.  The research topics will focus in particular on research being conducted at Virginia Tech, including 1) evaluating the effects of defects and fasteners in the plastic hinge on premature fracture, 2) developing new end-plate moment connection configurations, 3) predicting connection fracture using low cycle fatigue laws, 4) testing of reduced beam section specimens with jumbo beams and columns, and 5) developing self-centering moment frames.


报告人简介:
Bio:  Matthew Eatherton is an Associate Professor in the Department of Civil and Environmental Engineering at Virginia Tech.  He completed his PhD at the University of Illinois – Urbana Champaign in 2010.  Before entering the PhD program, he worked as a practicing structural engineer for seven years designing buildings to resist earthquake motions in San Francisco, California.  Dr. Eatherton’s research group is currently working on several research projects related to self-centering seismic systems, structural fuses made of perforated steel shear plates, ductile moment resisting frames, computational simulation of low cycle fatigue fracture, behavior and design of steel deck diaphragms to resist earthquake effects, and others.

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