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Patent Searching and Data


Title:
PREFABRICATED OPEN-WEB GIRDERS
Document Type and Number:
WIPO Patent Application WO/2011/062465
Kind Code:
A3
Abstract:
This invention relates to a reinforced prefabricated open-web girder that is self-supporting or propped in the centre and that works primarily as a frame and secondarily as a doubly reinforced beam, manufactured using a lightweight-prefabrication method, with a frame and a lower concrete heel reinforced horizontally in a first stage, then the remainder is poured and reinforced on site with higher compression strength characteristics at its extremities, which is capable of withstanding any plastic hinges that occur; it is also reinforced along the body of the girder to withstand the total diagonal stress. On the ends of the girder are placed shear connectors that are supported on the column and that bear twice the load; the body of the girder is reinforced with vertical braces, continuous rods and the diagonals of the frame, all of which double the safety factor in order for the diagonal stress on the girder to be absorbed.

Inventors:
RAMIREZ-IBANEZ JOSE LUIS (MX)
RAMIREZ-IBANEZ MANUEL (MX)
Application Number:
PCT/MX2010/000089
Publication Date:
November 10, 2011
Filing Date:
September 07, 2010
Export Citation:
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Assignee:
RAMIREZ-IBANEZ JOSE LUIS (MX)
RAMIREZ-IBANEZ MANUEL (MX)
International Classes:
E04C3/294; E04B5/23; E04B5/26; E04H9/02
Domestic Patent References:
WO2002014619A12002-02-21
Foreign References:
DE6601831U1969-03-20
US4081935A1978-04-04
FR2560910A11985-09-13
Attorney, Agent or Firm:
ALEGRÍA-MARTÍNEZ, Abraham Guillermo (Piso 3Col. Cuauhtémoc, C.P. México D.F., MX)
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