Angle iron reinforcing method for concrete ledger beam

Abstract

The invention discloses a construction technology for reinforcing a ledger beam through angle iron. The construction technology for reinforcing comprises the following steps that 1, a formwork is manufactured, wherein an angle iron formwork is manufactured according to the angle between the ledger beam and a plate on site; 2, angle iron is machined, wherein the formwork is conveyed to a machiningfactory, and the angle iron is machined according to the fixed length of the formwork; 3, an original concrete surface is cleaned and polished, wherein the concrete surface is polished at the angle iron adhesion part by using a polishing machine, and cleaned and scrubbed by using acetone; 4, setting-out is conducted, wherein setting-out is conducted at the angle iron adhesion part so as to guarantee the subsequent construction quality; 5, hole drilling, assembling and welding, and angle iron roughening treatment are conducted; 7, the angle iron is adhered; 8, chemical anchor bolts are installed; and 9, antirust and fireproof paint is brushed on the surface of the angle iron. According to the angle iron reinforcing construction technology for the ledger beam, the bent angle iron is tightlyconnected with structural adhesives and an original concrete beam, so that the overall stress of the structure is guaranteed, the adhesive steel adhesives bear shearing force, bolts are used as assistance, the purposes of increasing the supporting length of a pre-supported floor slab and effectively improving the rigidity of the floor slab can be completely achieved, and good market prospects areachieved.

Description

technical field [0001] The invention relates to the field of civil engineering, in particular to a reinforced structure for concrete flower basket beams using angle irons (steel plate bending). Background technique [0002] If angle steel is used to connect the beam and slab when the frame beam is strengthened, it needs to be connected by angle steel. However, many frame beams in engineering reinforcement construction are flower basket beams. The shear force support of the bolts between the beams is unfavorable for earthquake resistance, and cannot achieve the purpose of presupporting the length of the floor slab support and improving the rigidity of the floor slab, while the flower basket beam is connected with the beam and slab by using angle iron (steel plate bending), which can ensure the connection between the angle iron and the flower basket beam Tight combination, so that the bonded steel glue bears the shear force, supplemented by bolts, which can fully meet the purp...

AI Technical Summary

Problems solved by technology

[0002] If angle steel is used to connect the beam and slab when the frame beam is strengthened, it needs to be connected by angle steel. However, many frame beams in engineering reinforcement construction are flower basket beams. The shear force support of the bolts between the beams is unfavorable for earthquake resistance, and cannot achieve the purpose of presupporting the length of the floor slab support and improving the rigidity of the floor slab, while the flower basket beam is connected with the beam and slab by using angle iron (steel plate bending), which can ensure the connection between the angle iron and the flower basket beam Tight combination, so that the bonded steel glue bears the shear force, supplemented by bolts, which can fully meet the purpose of increasing the length of the presupported floor slab support and effectively improving the stiffness of the floor slab. At the same time, the bonded steel glue can ensure compactness and other favorable factors. The beams and slabs are closely connected together, so that the overall structure is stressed. Therefore, it is necessary to invent a concrete flower basket beam and use angle iron (steel plate bending) to strengthen the structural beam to solve the above problems.

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