A Construction Method of Reinforced Concrete Internal Support Beam Without Bottom Form
A reinforced concrete and construction method technology, which is applied in excavation, infrastructure engineering, construction, etc., can solve problems such as construction failures, and achieve the effects of saving labor support costs, obvious social benefits, and avoiding safety risks
Active Publication Date: 2019-07-09
SUNYOUNG CONSTR GROUP
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[0004] After retrieval, the patent CN103334439A discloses a rectangular deep foundation pit large-span reinforced concrete internal support structure and its construction method. Although this patent proposes a rectangular deep foundation pit large-span reinforced concrete internal support structure with a novel structure, but Its concrete construction still can not solve above-mentioned technical problem
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[0028] The present invention will be described in detail below in conjunction with specific embodiments. The following examples will help those skilled in the art to further understand the present invention, but do not limit the present invention in any form. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of the present invention. These all belong to the protection scope of the present invention.
[0029] The invention provides a method for constructing a reinforced concrete support beam without a bottom form, as follows: figure 1 As shown in the section construction drawing, the construction sequence is to pour the plain concrete cushion first, and then paint the paper-reinforced lime slurry isolation layer at the position of the reinforced concrete support beam 1 on the surface of the plain concrete cushion, and wait for the paper-reinforced lime slurry isolation layer to dry. Carry out st...
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The invention provides a construction method of a bottom-die-free reinforced concrete supporting beam. According to the method, lime slurry mixed with paper ribs is evenly smeared to the surface of a plain concrete cushion; then reinforced concrete beam steel bar binding, side die supporting and concrete pouring are carried out; after the strength of the reinforced concrete inner supporting beam meets the strength required by design, earth excavation is carried out; and when earth excavation is carried out to the position below the bottom of the reinforced concrete inner supporting beam, automatic separation of the cushion and the reinforced concrete beam on the cushion is achieved through the difference between a paper rib lime plaster layer and concrete. According to the construction method, automatic separation of the beam bottom and the cushion can be completed without bottom die supporting in reinforced concrete inner supporting, the construction efficiency of the reinforced concrete inner supporting beam is improved, and the cost of a reinforced concrete template is reduced.
Description
technical field [0001] The invention relates to the field of construction engineering, in particular to a method for constructing a reinforced concrete inner support beam without a bottom form. Background technique [0002] At present, most of the reinforced concrete inner support beams in deep foundation pits use plain concrete cushion first, and then lay wooden formwork or felt as the bottom form on the cushion, and carry out corresponding reinforced concrete construction. Excavate the earthwork, and remove the bottom formwork after the earthwork is excavated to the bottom of the beam. The removal process of the bottom formwork for reinforced concrete inner support beams that use the bottom formwork is easy to remove due to the adhesion between the formwork and the concrete. Concrete blocks are hung at the bottom of reinforced concrete support beams, which poses a safety hazard to the foundation pit construction below the support, especially because the concrete suspended ...
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IPC IPC(8): E02D17/04
CPCE02D17/04
Inventor 李迥陈炎表董春山孙斌李青邵渭标李飞
Owner SUNYOUNG CONSTR GROUP