Advanced Steel Construction

Vol. 8, No. 2, pp. 199-211 (2012)


TEST STUDY ON BASIC STATIC CHARACTERISTICS OF CABLE SUPPORTED BARREL VAULT STRUCTURE

 

Wentao Qiao 1,* , Zhihua Chen 2 and Mingshan Zhao 3

1 Lecturer, School of Civil Engineering, Shi Jiazhuang Tiedao University, China

2 Professor, School of Civil Engineering, TianJin University, China

3 PhD. Student, School of Civil and environmental Engineering, Nanyang Technological University, Singapore

*(Corresponding author: E-mail: This email address is being protected from spambots. You need JavaScript enabled to view it. )

 

Received: 21 November 2011; Revised: 12 March 2012; Accepted: 20 March 2012

DOI:10.18057/IJASC.2012.8.2.7

 

ABSTRACT:

By combining single layer cylindrical latticed shell (SLCLS) and beam string structure, a new-style prestressed spatial structure cable supported barrel vault structure (CSBV) is formed. Taking a practical CSBV roject as prototype, a scaled model with a scale of 1:15 is designed and fabricated, the static loading test is carried out. Research results indicate that the characteristics of the prototype structure can be reflected by this model test. As the load increases, the change rule of the test values of the cables' forces agree with that of theoretical values. The two outmost cables' forces are generally smaller than the other interior cables' forces. The cables' forces in the symmetrical places keep closer. For rods' forces and nodal displacements of CSBV, the test values and theoretical values both keep closer. The differences between test values and theoretical values increases with the load. The test values are larger than the theoretical values, but the change rule still matches. Compared with SLCLS in the same condition, the rods' forces and nodal displacements of the CSBV are both smaller, and the mechanic characteristics of CSBV are more efficient.

 

Keywords:

Cable supported barrel vault, Beam string structure, Cylindrical latticed shell, Rise-span ratio, Sag-span ratio, Strut number

 

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