Ezperimental research on beams with tubular chords and corrugated steel webs
Experiments on beams with tubular chords and corrugated steel webs were carried out. The differences among the three specimens lie in the chords of hollow steel tube or Concrete Filled Steel Tube (CFST). In specimen A, all chords are hollow steel tubes; in specimen C, all chords are CFST; while in specimen B, the upper chords are CFST but the lower chords are hollow steel tubes. Stresses, displacements, failure modes and ultimate load carrying capacity of the beams are analyzed and compared with each other. Experimental results show that the flexural rigidity and ultimate carrying capacity is improved considerably if the chords are CFST compare to hollow steel tubes. Joint failure in tubular trusses can be avoided in such a beam with tubular chords and corrugated webs. Based on the Quasi-Plane-Section assumption, the formula to calculate the ultimate load of this new composite structure is presented and the predicted results agree well with the test results.
J.Gao B.C.Chen
College of Civil Engineering, Fuzhou University, Fuzhou, China
国际会议
第12届钢管结构国际学术会议(The 12th International Symposium on Tubular Structures)
上海
英文
563-570
2008-10-08（万方平台首次上网日期，不代表论文的发表时间）