Que No Hacer con las Estructuras

Que No Hacer con las Estructurads

XI So,[psop – Intenacional de Estructurasde Acer

Que No Hacer con las Estructurads POOR DESIGNS

Presented by Thomas M. Murray, Ph.D., P.E. Department of Civil and Environmental Engineering Virginia Tech, Blacksburg, Virginia thmurray@vt.edu XI SIMPOSIO-INTERNACIONAL DE ESTRUCTURASDE ACER 09 March 2011 1 1

Lack of Stability Bracing

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Presented by Professor Thomas Murray, Virginia Tech 09 March 2011

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Que No Hacer con las Estructurads

XI So,[psop – Intenacional de Estructurasde Acer

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Presented by Professor Thomas Murray, Virginia Tech 09 March 2011

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Que No Hacer con las Estructurads

XI So,[psop – Intenacional de Estructurasde Acer

Where is the lateral load resistance?

K >> 2.0

A SOLUTION 9

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Virginia Tech Stadium North End Zone Bleachers

??

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Presented by Professor Thomas Murray, Virginia Tech 09 March 2011

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Que No Hacer con las Estructurads

XI So,[psop – Intenacional de Estructurasde Acer

Will this detail really work?

Where is the work point?

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Is there a work point?

PROBLEMS WITH FOOTINGS AND ANCHOR RODS

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Presented by Professor Thomas Murray, Virginia Tech 09 March 2011

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Que No Hacer con las Estructurads

XI So,[psop – Intenacional de Estructurasde Acer

Was the base plate too strong?

Anchor rods in wrong position

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Shop rework of column & base plate

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Presented by Professor Thomas Murray, Virginia Tech 09 March 2011

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Anchor rods too short

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Que No Hacer con las Estructurads

XI So,[psop – Intenacional de Estructurasde Acer

Anchor rods too long PROBLEMS CAUSED BY OTHER TRADES

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Who needs the web?

Who needs the flange?

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Presented by Professor Thomas Murray, Virginia Tech 09 March 2011

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Que No Hacer con las Estructurads

XI So,[psop – Intenacional de Estructurasde Acer

Joist Reinforcement?

Joist Reinforcement?

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Pipe Interference

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Bracing Interference

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Que No Hacer con las Estructurads

XI So,[psop – Intenacional de Estructurasde Acer

FIELD FABRICATION

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Que No Hacer con las Estructurads

XI So,[psop – Intenacional de Estructurasde Acer

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Presented by Professor Thomas Murray, Virginia Tech 09 March 2011

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Que No Hacer con las Estructurads

XI So,[psop – Intenacional de Estructurasde Acer

Remember:

OOOO

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Presented by Professor Thomas Murray, Virginia Tech 09 March 2011

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Que No Hacer con las Estructurads

XI So,[psop – Intenacional de Estructurasde Acer

1940 ft (591 m)

AN ERECTOR’S ERROR

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60 ft (18.3 m) Section

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Presented by Professor Thomas Murray, Virginia Tech 09 March 2011

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Que No Hacer con las Estructurads

XI So,[psop – Intenacional de Estructurasde Acer

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Presented by Professor Thomas Murray, Virginia Tech 09 March 2011

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Que No Hacer con las Estructurads

XI So,[psop – Intenacional de Estructurasde Acer

1000 ft (305 m) Pickup

24 Car Transmitter Building Hoists 49

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Video

Presented by Professor Thomas Murray, Virginia Tech 09 March 2011

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Presented by Professor Thomas Murray, Virginia Tech 09 March 2011

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Que No Hacer con las Estructurads

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Thank You!!

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