Load bearing concrete panel reconstruction

Details Load bearing concrete panel reconstruction Load bearing concrete panel reconstruction

1989-01-23

1991-02-12

Britts, Ramon S.

Bridges

Deck

Joint

404 82, 14 1, E01C 700

Patent

active

049912488

ABSTRACT:
Prior art supported, load bearing concrete panels having flexural reinforcing materials within the top and bottom halves, are over-designed, and experience increased deterioration and increased severity of cracks in the top surface due to flexural reinforcing materials which are located within the tip half of the panel. It is now taught that existing deteriorated concrete panels can be reconstructed by removing the upper concrete containing the upper layer of flexural reinforcing means for carrying bending moment tension stressed in the top half of panels (12), over interior supports (14), while maintaining such flexural reinforcing means (20) confined to the lower half of the panel, has sufficient flexural strength of the panel (12) to support expected loads. Such panels (12), will exhibit improved durability and reduced tip surface (16) cracking. Preferred techniques for controlling top half cracking from temperature and shrinkage of the panel are set forth.

REFERENCES:
patent: 2179019 (1939-11-01), Willetts
patent: 2220349 (1940-11-01), Plumb
patent: 3429094 (1969-02-01), Romualdi
patent: 3808085 (1974-04-01), Givens, Jr.
patent: 4565840 (1986-01-01), Kobayashi et al.
patent: 4785600 (1988-11-01), Ting

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