Experimental and Numerical Studies on the Progressive Collapse Behavior of Tensegrity Systems. Issue 1 (March 2014)

• Record Type: Journal Article
• Authors: Shekastehband, B.; Abedi, K.; Dianat, N.
• Is Part Of: International journal of space structures. Volume 29:Issue 1(2014)
• Page Start: 9
• Page End: 24
• Publication Date: 2014-03
• Subjects: tensegrity systems -- progressive collapse -- fastener bolts failure -- residual stress -- cable rupture; Space frame structures -- Periodicals; Space (Architecture) -- Periodicals; Space (Architecture); Space frame structures; Periodicals; 624.177
• DOI: 10.1260/0266-3511.29.1.9
• Languages: English
• ISSNs: 0956-0599

Abstract

To better understanding the response of tensegrity systems subjected to the progressive collapse, the experimental and numerical studies were carried out on a 3.0×3.0×0.7 m prototype. The primary tests on the constituent elements were repetitive loading and unloading tests on the cable elements as well as tensile tests on the tubes and buckling tests on the struts (consisted of tubes and end connections). The experimental tensegrity model was loaded up to a load level at which buckling of a strut led to successive buckling of struts causing overall collapse. The tests results are served as a basis for calibration of numerical models and furthermore for the development and verification of a new approach to structural design of tensegrity systems. The most important conclusion was that the collapse behavior of the tensegrity model is strongly dependant on the fastener bolts failure after buckling of the struts. Additionally, kinetic energy released during the progressive collapse in the tensegrity model caused catastrophic results in the supporting systems.