Title: Advanced Structural Systems (2)
1(No Transcript)
2????? ??? ???????? ??????? (2)
Advanced Structural Systems (2)
???? ?????
3 ? ?? ????????? ???? ???
? ?? ????????? ???? ?? ????? ?????? ????????
? ???? ?????? ????(Member Snap)
? ?? ?????? ????
??? ?????? ?? ????????? ????? ????? ???? ?? ????
? ??????? ????? ??? ???? ? ??? ?? ?????? ??
????????? ???? ?? ????? ?? ??? ????? ?? ????
?????? ????? ? ?? ??????????? ????? ?????? ??
????????? ?? ?????? ?? ???? ?? ????? ? ????? ??
???? ?? ????? ?? ???? ????? ?????? ??????? ??????
? ?????
?? ???? ??? ????? ???????? ?? ?????? ?? ?????
?????? (Propagation) ?????? ?? ????? ?? ???? ??
???? ?? ??? ?????? ????? ?? ???? ?????? ?????
????. ?????? ???? ????? ???????? ?? ?????? ??
????? ?????? ???????? (Dynamic Propagation) ??
????????? ???? ???? ?????? ???? ? ?????? ???? ??
???? ??? ?????? ??? ???? ???.
? ?????? ?????
4(No Transcript)
5PROPAGATION OF LOCAL INSTABILITY IN SIGLE LAYER
DOMES
6DOMINO EFFECT IN DOUBLE LAYER GRIDS
propagation of buckling
lines of collapse
7ARCHETYPE OF DOMINO EFFECT IN SPACE STRUCTURE
Collapse of Hartford Civic Center Arena Roof
January 18,1978
8Collapse of Hartford (Connecticut, USA) Arena
Roof, 1978
9EXPOSITION HALLS FROM BRNO AND BUCHAREST
BUCHAREST
BRNO
10ARCHETYPE OF LOCAL BUCKLING PROPAGATION Collapse
of exposition hall Bucharest-1963
Before collapse
After collapse
11COLLAPSE OF EXPOSITION HALL, Bucharest, 1963
snap - through
local buckling
12PROPAGATION OF LOCAL BUCKLING
13(No Transcript)
14?? ???? ?? ???? ???