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张超博士学术报告通知

作者:DSSE      来源:DSSE      发布时间(jian):2019-01-06  

报告人:张超博士
报告时间:1月9日(星期四)9:00-10:00
报告地点:特种实验楼二楼学术报告厅
报告人单位:美国NIST

报(bao)告(gao)题目(mu):A century of fire resistance: challenges and opportunities

报告摘要(yao):

Fires have threatened society throughout recorded history and beyond. Despite recent achievements in reducing their negative consequences the global impacts of fire remain staggering. Many of the embedded issues derive from phenomena which represent Grand Societal Challenges in their own right, i.e. sustainability and climate change, changing demographics (e.g. an ageing society), rapid urbanization, etc. Large scale fire disasters, e.g. World Trade Centers and the Grenfell Tower, clearly indicate the remaining deficiencies in knowledge and practice.

Passive fire resistance systems is the last line of defense against fire. The required minimum fire resistances in building codes are derived from technical data on isolated building components and based on the concept of fire compartmentation which assumes that the incident fires are contained within the enclosed space of origin for a specified period of time. Cardington full-scale fire tests on a 10-story steel framed building show that global structures are more robust than the isolated members, which suggest that the code required fire resistances may be too conservative. Collapse and partial collapse of tall buildings (e.g. WTC buildings 2001, the Windsor Tower 2005, the Delft University office 2008), on the other hand, indicate that the code required fire resistances may be not enough (note that fire spreading beyond the room and floor of origin was observed in those disaster fires). This talk presents the challenges and opportunities in fire resistance research.
报告人简介:
Dr. Chao Zhang joined the National Institute of Standards and Technology (NIST) as a guest researcher in October 2012.He specializes in tructural fire performance and is skilled in the development and use of fire and structural analytical and numerical models. He has proposed and eveloped a localized fire source for the NFRL commissioning tests of a  6 m long 
steel beam subjected to simultaneous fire and mechanical loading.  He has also designed the ASTM E119 fire environment in a large compartment for the NIST large-scale structural fire research project on Measurement of Structural Performance in Fire - Composite Floor Systems. Dr. Zhang received the NIST EL Distinguished Associate Award (2015) and the IAFSS best thesis award Excellence in Research (2011-2014). 





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