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- W2377706759 abstract "Post-tensioned and shaped space truss is introduced in this paper.The basic structural module of new type of prestressing space structure is the single chord space truss(SCST),which is composed of a single layer of chords,together with out-of-plane web members.Initially assembled on the ground level,the test space truss can be deformed into hypar shape by post-tensioning the diagonal bottom layer strand.Vertical ultimate load test was carried out on the shaped model.Top joints were applied by concentrated load step by step.Stresses and vertical deflections were measured in the test.According to the load-deflection curve,the actual vertical ultimate load was gained.The test results show that the necessary prestress is in a less degree and the shape formation is attributed to the flexural deflection of top chords.Structural failure was attributed to plasticity and fracture of some top joints,but not to overall unstability,therefore,structural stiffness should be emphasized in the design." @default.
- W2377706759 created "2016-06-24" @default.
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- W2377706759 date "2011-01-01" @default.
- W2377706759 modified "2023-09-23" @default.
- W2377706759 title "Experimental Study on Shape Formation & Ultimate load of Post-tensioned and Shaped Hypar Space Truss" @default.
- W2377706759 hasPublicationYear "2011" @default.
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