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US 4,071,996 AGranted
Process for reinforcing reinforced concrete post
AssigneeKajima Kensetsu Kabushiki Kaisha
InventorsKiyoshi Muto, Toshihiko Hisada, Nobutsugu Ohmori, Satoshi Bessho, Naoharu Mori, Katsuhiko Ishikawa
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Abstract
A method of maintaining the load bearing integrity of a pre-existing reinforced concrete post during earthquake tremors wherein a sheet metal band is placed about the post and then made integral thereto by inserting a hardenable bonding agent between the band and the post.
Claims1
In a pre-existing structurally sound load bearing reinforced concrete post, the method of maintaining the load bearing capacity of said post with bands during earthquake tremors, comprising the steps of:
- (a) providing a plurality of band segments,
- (b) bonding spacers to said band segments,
- (c) securing said segments around said post, thus fitting the spacers to said post,
- (d) fastening the segments together, thus completely forming said bands,
- (e) vertically spacing apart said bands one from the other along the longitudinal axis of said post,
- (f) interposing a hardenable bonding agent between said post and said bands, and
- (g) permitting said bonding agent to harden sufficiently to convert said post, bonding agent and bands into an integral structure,
- whereby decrease of load bearing capacity of said post is minimized by said bonded bands when said post is subjected to the attrition of flexing and shear due to earthquake tremors.
5 more elements
Dependencies are inferred from the claim text.