Research on the key technology for the design of large span double-floor steel truss semi suspension structure in library
The library of Huzhou Vocational and Technical College is located in Huzhou,Zhejiang Province.The architectural design mainly focuses on tall space,and the structure is characterized by large span,large overhang,large suspension,and large openings.The vertical components of the upper floor of the library(steel frame columns outside the core tube)cannot directly and continuously connect to the ground.The vertical load is transmitted to the core tube through the steel trusses of the fifth floor and roof,and then to the foundation through the core tube,forming a"cast-in-place reinforced concrete double core tube+large span double floor steel truss semi suspension structure"system.The transition span of the large span double-floor steel truss semi suspension structure reaches 53m,and the maximum overhanging span around it reaches 13.3m.It has the characteristic of mixed bearing capacity of suspension structure and vierendeel truss structure,and the structural system is innovative.Research is being conducted on key technical issues related to the construction stress simulation,seismic performance design,floor comfort,anti-progressive collapse,and key connection nodes involved in this new structural system.
NETL
NSTL
万方数据
