Re: Crollo Torri Gemelle: perché si parla di effetto pancake?
Inviato da Paxtibi il 9/8/2006 21:32:43
Il reinforced concrete nel core si trova anche in questi documenti del MIT:
Materials and Structures
Oral Buyukozturk
Professor of Civil & Environmental Engineering, MIT
Franz-Josef Ulm
Esther and Harold E. Edgerton Associate Professor of
Civil & Environmental Engineering, MIT
The core comprises steel beams and columns with reinforced concrete infill panels designed to share part of the gravity loads. The core was designed to resist vertical loads and was not assumed to transfer any lateral loads. The perimeter columns were tied to the core only by the truss-slab system and the horizontal forces were assumed to be resisted by the perimeter columns and their connecting spandrel beams.
________________________________
Aircraft Impact Damage
Tomasz Wierzbicki
Professor of Applied Mechanics, MIT
Liang Xue
Ph.D. Candidate of Ocean Engineering, MIT
Meg Hendry-Brogan
Undergraduate student of Ocean Engineering, MIT
The vertical steel and concrete core that forms the center of the “tube” supports approximately 60% of the total gravity load of the building, while the outside shell bears the remaining 40%. The towers were built very modularly and consisted of many prefabricated pieces, such as exterior panels, floor trusses etc.
Materials and Structures
Oral Buyukozturk
Professor of Civil & Environmental Engineering, MIT
Franz-Josef Ulm
Esther and Harold E. Edgerton Associate Professor of
Civil & Environmental Engineering, MIT
The core comprises steel beams and columns with reinforced concrete infill panels designed to share part of the gravity loads. The core was designed to resist vertical loads and was not assumed to transfer any lateral loads. The perimeter columns were tied to the core only by the truss-slab system and the horizontal forces were assumed to be resisted by the perimeter columns and their connecting spandrel beams.
________________________________
Aircraft Impact Damage
Tomasz Wierzbicki
Professor of Applied Mechanics, MIT
Liang Xue
Ph.D. Candidate of Ocean Engineering, MIT
Meg Hendry-Brogan
Undergraduate student of Ocean Engineering, MIT
The vertical steel and concrete core that forms the center of the “tube” supports approximately 60% of the total gravity load of the building, while the outside shell bears the remaining 40%. The towers were built very modularly and consisted of many prefabricated pieces, such as exterior panels, floor trusses etc.
Messaggio orinale: https://old.luogocomune.net/site/newbb/viewtopic.php?forum=4&topic_id=1908&post_id=41608