Experimental Research on the CFST Space Intersecting Connections
Abstract eng: In this paper, a new tube-in-tube structural system is presented, in which the concrete filled steel tube(CFST) obliquely crossing lattice is used as structural outer tube in an ultrahigh-rise building with height of 432m. The detail of CFST spatial intersecting connection which satisfies the ‘stronger connection’ criteria is proposed. Four specimens of the connections are tested on a set of self-equilibrating steel loading equipment with the bearing capacity of 20000kN, with the purpose of obtaining the failure mode, ultimate capacity and collapse procedure. Before the test performed, a finite element analysis on the full range of test setup is conducted, which calculate the requirement of the lateral stiffness for the connections. As a result, the effect of the lateral deflection and necessity of design with good lateral confinement for the connections is verified.
Contributors:
Conference Title:
Conference Title:
14th World Conference on Earthquake Engineering
Conference Venue:
Bejing (CN)
Conference Dates:
2008-10-12 / 2008-10-17
Rights:
Text je chráněný podle autorského zákona č. 121/2000 Sb.
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Record created 2014-12-05, last modified 2014-12-05
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