Theoretical Assessment of the Behavior of a Cable Bracing System with a Central Steel Plate

Document Type : Research Article


Department of Civil Engineering, Tabriz University, Tabriz, Iran


The large displacements and lack of sufficient lateral stiffness are the main problems of moment resisting frames (MRFs). In this research a system of four cable bracings connected to a square steel plate located in the center of them has been studied to solve MRF’s mentioned problems. The theoretical behavior of the system was derived under a lateral static load. The purpose of this study is to demonstrate the efficiency of the system, in which all cables have tensile forces under the lateral load and cables are not slackened. The cables diameter and plate dimensions were investigated. It was observed that the variation of cable diameter had a significant effect on the frame lateral displacement; while the variation of dimensions of the plate did not have much effect on the obtained values. The results showed that the proposed system had the same characteristics of the MRF for its appropriate ductility, at the same time it had its high stiffness. Adding a steel plate in the center of bracings causes all cables to involve against the lateral load and all cables remain in tension. Therefore, using the central steel plate improves the performance of the structure against the applied lateral load.


Main Subjects

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