Advanced Steel Construction

Vol. 8, No. 1, pp. 54-70 (2012)


INFLUENCE OF CABLE SLIDING ON THE STABILITY OF SUSPEN-DOME WITH STACKED ARCHES STRUCTURES

 

Liu Hongbo 1 and Chen Zhihua 1, 2, *

1 Department of Civil Engineering, Tianjin University, Tianjin 300072, China

2 Tianjin Key Laboratory of Civil Engineering Structures and New Materials, Tianjin 300072, China

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

 

Received: 10 March 2011; Revised: 31 May 2011; Accepted: 10 June 2011

DOI:10.18057/IJASC.2012.8.1.4

 

ABSTRACT:

A new type of continuous cable joint is presented in this paper for the suspen-dome with stacked arch. For this new cable joint, there are two state: locked state and unlocked state. In the locked state, the hoop cable cannot slide around cable joint. In the unlocked state, the hoop cable can slide around cable joint. In order to analyze the stability of suspen-dome with stacked arches structures under condition that the continuous cable joint is unlocked state, A three-node sliding cable element was used and its tangent stiffness matrix was determined based on the principal of virtual work and uniform strain assumption. The element was then implemented in commercial finite element software ABAQUS as a user defined element and applied in the stability analysis of a suspen-dome with stacked arches structure. Both symmetric and asymmetric load were considered for the suspen-dome with stacked arches structure to investigate the influence of cable joint state on its stability behavior. It was concluded that the stability behavior when the continuous cable joint is locked is better than that of when the continuous cable joint is unlocked.

 

Keywords: Suspen-dome with stacked arch structures, Continuous cable joint, Sliding cable element, Stability

 

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