Construction method of bridge bearing platform

Abstract

The invention relates to a construction method of a bridge bearing platform, and belongs to the field of bearing platform construction. The method comprises the following steps of S1, pre-constructionwork is performed; S2, cushion concrete is poured; S3, bearing platform steel bars are installed; S4, A bearing platform formwork is installed, a plurality of vibrating openings are formed in the lower part of the formwork, a vibrating rod is inserted into the vibrating opening such that the vibrating rod is made to transversely penetrate through the whole bearing platform, attention is paid to that the vibrating rod does not make contact with the reinforcing steel bar and the formwork, temporary sealing is conducted between the vibrating plates and the vibrating opening through foam blocks,then the two vibrating plates are welded to the formwork, the two ends of the vibrating rod are connected with the two vibrating plates correspondingly, and vibrating motors are arranged on the vibrating plates; S5, concrete is poured; S6, the formwork is dismantled, and geotextile covering and watering maintenance are conducted on the bearing platform; and S7, foundation pit backfilling is performed. The construction method has the effect of improving the vibrating quality of concrete at the bottom of the bearing platform.

Description

technical field [0001] The invention relates to the technical field of cap construction, in particular to a construction method for a bridge cap. Background technique [0002] The cap refers to the reinforced concrete platform on the top of the pile foundation that connects the tops of the piles to bear and distribute the load transmitted by the pier body. The cap is the connection part between the pile and the column or pier. The cap connects several or even dozens of piles together to form a pile foundation, which is one of the most important buildings in bridge construction. [0003] The existing authorized announcement number is that the Chinese patent of CN104120732A discloses a construction method of a pile cap, including the following steps: (1) checking the semi-finished steel bar; (2) binding the steel bar; (3) pre-embedded pipeline and iron work; 4) Binding mortar pads; (5) Installing formwork; (6) Concrete pouring. [0004] The above-mentioned existing technical...

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Problems solved by technology

[0004] The above-mentioned existing technical solutions have the following defects: when pouring the concrete of the cap, the construction personnel need to vibrate the concrete to ensure that the concrete is compacted by vibration, but when the cap is large in volume, it is difficult for the construction personnel to vibrate to the place where the cap is located. The concrete at the bottom of the abutment will cause this part of the concrete to be vibrated and not dense. After the formwork is removed later, there will be problems such as honeycomb pitting, which will affect the final quality of the abutment

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