A method for quickly strengthening concrete beams
A concrete beam, fast technology, applied in construction, building maintenance, building construction, etc., can solve the problems of long construction period and cumbersome construction steps, achieve short construction period, overcome easy peeling, and improve economic and social benefits. Effect
Active Publication Date: 2017-10-03
WUHAN UNIV
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Problems solved by technology
[0004] Aiming at the problems of cumbersome construction steps and long construction period of the above-mentioned concrete beam strengthening method, the present invention provides a method for quickly strengthening concrete beams
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[0025] The present invention will be further described in conjunction with the accompanying drawings.
[0026] Such as figure 1 and figure 2 As shown, a method for quickly strengthening concrete beams, the construction steps are as follows:
[0027] Step 1, making a U-shaped steel sleeve 2 matching the size of the cross-section of the concrete beam 1, and reserving bolt holes on the web plates on both sides of the U-shaped steel sleeve 2;
[0028] Step 2, repairing the surfaces on both sides of the concrete beam 1;
[0029] Step 3, according to the bolt hole position reserved by the U-shaped steel sleeve 2, drill through the bolt hole on the side of the concrete beam 1;
[0030] Step 4: Apply building structural glue to the bonding area 4 of the web of the U-shaped steel sleeve 2, and put the U-shaped steel sleeve 2 on the concrete beam 1 with the opening upward, so that the U-shaped steel sleeve 2 meets the design height, and the U-shaped steel sleeve 2 The bonding area ...
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The invention discloses a method for accelerating reinforcement of a concrete beam. The method comprises the following steps: fabricating a U-shaped steel sleeve matched with the size of the cross section of the concrete beam by a cold bending or welding method, and reserving bolt holes; repairing the surfaces on two sides of the concrete beam; drilling through bolt holes in the side surfaces of the concrete beam at the positions of the bolt holes reserved in the U-shaped steel sleeve; coating bonding regions on web plates of the U-shaped steel sleeve with building structure adhesives, then sleeving the concrete beam by the U-shaped steel sleeve to let the U-shaped steel sleeve reach a designed height, wherein the bonding regions on the web plates of the U-shaped steel sleeve are closely attached with the surfaces on two sides of the concrete beam; injecting anchor adhesives into the through bolt holes, mounting through bolts, tightening screw caps, and fixing the U-shaped steel sleeve and the concrete beam together to form a case type structure. The method has the advantages that the a small number of reinforcing assemblies are used, the construction steps are simple, the construction period is short, and the reinforced concrete beam can be put in service quickly; the bearing capacity the rigidity of the reinforced concrete beam can be greatly improved; the gravity of the reinforced beam is increased little, the whole performance is high, and the reliability is high.
Description
technical field [0001] The invention belongs to the technical field of civil engineering structure reinforcement, and in particular relates to a method for rapidly reinforcing concrete beams. Background technique [0002] Our country is a country with frequent natural disasters. After experiencing disasters, the building structures will be damaged to varying degrees, and many of the buildings can continue to be used through reinforcement and maintenance. In order to ensure the safety of people's lives and property and prevent these damaged If the building is further damaged, it must be reinforced as soon as possible; in addition, the use function of many existing buildings has changed, and the actual use load has increased, resulting in insufficient bearing capacity of the original structure. , It also makes the buildings unable to meet the bearing capacity requirements. In order to make these buildings put into use as soon as possible to reduce economic losses, it is also n...
Claims
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IPC IPC(8): E04G23/02
CPCE04G23/0244
Inventor 卢亦焱沈炫李杉胡玲
Owner WUHAN UNIV