A reinforced grouting casing for improving the bearing capacity of steel members

Abstract

The invention relates to a reinforced grouting casing capable of improving bearing capacity of a steel member in the structural engineering field of fixed constructions. The reinforced grouting casing can be used for improving the bearing capacity of the steel member and repairing damage of the steel member. The structure of the reinforced grouting casing is as follows: a flexible material membrane is directly coated on the deformed part of the steel member; a straight casing is axially sleeved outside the steel member coated with the flexible material membrane; and expansive cement paste is filled between the straight casing and the flexible material membrane. With the adoption of the reinforced grouting casing, the problem that the structural safety and normal usage of the steel member are influenced during the reinforcing construction period in the prior art is overcome. By virtue of the reinforced grouting casing, the bearing capacity of the original steel member is increased without influence to the rigidity of the original member, thus the stress of each member of the original structure cannot be influenced. At the same time, the reinforced grouting casing is low in constructing precision requirement, convenient in constructing and short in construction period.

Description

technical field [0001] The invention relates to the field of structural engineering of fixed buildings, in particular to a casing used for improving the bearing capacity of steel components and repairing damage of steel components. Background technique [0002] The normal use of steel components is linear, but in actual engineering, steel components often have overall distortion, local distortion or damage caused by rust or accidents. The current reinforcement method is to cut and replace the original components Or welded plate reinforcement, which will affect the load-bearing performance of the original components, and affect the safety and normal function of the building during the reinforcement construction. Moreover, it is necessary to install and support the original structure during reinforcement, which leads to problems such as long reinforcement period, high cost, and high construction precision requirements. Contents of the invention [0003] In order to overcome...

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Problems solved by technology

[0003] In order to overcome the problem that the structural safety and normal use function of the existing technology are affected during the reinforcement construction of steel components, the invention provides a reinforced grouting casing with improved bearing capacity. By using the reinforced grouting casing, the original steel can be increased. The bearing capacity of the component, but does not affect the stiffness of the original component, so it will not affect the force of each component of the original structure

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