Abstract

Single-layer special-shaped folded-plane latticed shell had been applied in Shenyang culture and art center. In order to analysis its static stability, explore the form of buckling modes and find out its critical load factor, this paper analysis the optimized structure with MIDAS Gen. Eigenvalue buckling analysis and nonlinear buckling analysis showed that the in-plane stiffness of the structure is very large, and the out-plane stiffness is small, the upside structure is prone to instability. The critical load factor for this structure is 10.32, the structural overall stability is fine according to the code. This structures is sensitive to the initial geometric imperfections which could lower structural stability of the system.

Highlights

  •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

  • PDGH RI WZR NLQGV RI VWHHO SLSHVijPP îPP DQG ij PPîPP 7KH PDLQ FRPSRQHQWV DUH FRQQHFWHG E\ FDVW VWHHO MRLQWV DQG WKH PDLQ DQG VHFRQGDU\ PHPEHUV DUH ZHOGHG WKURXJK HDFK RWKHU 7KH ZKROH URRI ZHLJKV WRQV

  •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

Read more

Summary

5HVHDUFK EDFNJURXQG

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ijPP îPP DQG ij PPîPP 7KH PDLQ FRPSRQHQWV DUH FRQQHFWHG E\ FDVW VWHHO MRLQWV DQG WKH PDLQ DQG VHFRQGDU\ PHPEHUV DUH ZHOGHG WKURXJK HDFK RWKHU 7KH ZKROH URRI ZHLJKV WRQV

7HPSHUDWXUH ORDG
7KH ILIWK RUGHU EXFNOLQJ PRGH
Full Text
Published version (Free)

Talk to us

Join us for a 30 min session where you can share your feedback and ask us any queries you have

Schedule a call