《高层民用建筑钢结构技术规程》修订简述

Amendment description of the ‘Technical specification for steel structure of tall buildings’ in China

JGJ99—98《高层民用建筑钢结构技术规程》于1998年颁布实施至今已过去10多年,在这期间,人类遭受了多次特大地震灾害,也给土木工程工作者很多启示。这次《高层民用建筑钢结构技术规程》的修订,参考了国内外研究成果,着重对框架梁柱连接的形式和节点、构件的设计计算方法进行了修订及补充,内容包括:考虑塑性铰外移的加强型连接和骨式连接的构造及计算方法,高强螺栓群连接的设计,梁腹板与箱形柱连接时抗弯设计以及构件连接系数等规定。修订的《高层民用建筑钢结构技术规程》还补充或修订了高层建筑用钢板、无粘结耗能支撑、钢板剪力墙等抗震技术。

The ‘Technical specification for steel structure of tall buildings’ which was enacted in 1998 has been implemented over 10 years.In these years,a number of devastating earthquakes around the world urge civil engineering community to reevaluate design practice.The amendment of the ‘Technical specification for steel structures of tall buildings’ takes advantages of both domestic and oversea research results and focuses on the beam-to-column connections of structure,component design and calculation method.Revisions and update include design of dog-bone,locally widened flange,cover-plate,flange plate and high-strength bolt connections,calculation of beam web-to-box column connection,connection factors for beam-to-column connections,etc.The amendment also includes a number of seismic-resistant members with good performance,including a new series of steel used in seismic steel structure,unbond brace （UBB）,steel shear wall,etc.