Immediate implantation method of PC stair anchoring steel bars
A technology for anchoring steel bars and stairs, used in construction, building maintenance, building construction, etc., can solve problems such as reducing safety risks, reducing hovering time, etc., to achieve the effect of accelerating construction speed, construction without deviation, and reducing safety risks.
Active Publication Date: 2021-03-05
MCC NORTHEAST CONSTR SHENYANG ENGTECH CO LTD
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Problems solved by technology
[0003] The invention proposes a method for instant implantation of anchoring steel bars for PC stairs, which is used to directly implant the anchoring steel bars at the anchoring holes of PC stairs during hoisting. The anchoring steel bars can be removed only after they are implanted, avoiding safety accidents caused by PC stairs falling due to the problem of no anchoring steel bars, and greatly reducing the hovering time of PC stairs during alignment adjustment, and the hovering adjustment time of each stair section in the air is reduced by about 10 Minutes, reducing security risks
Method used
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Embodiment 1
[0030] Example 1: Wangjiaxin City Phase II Relocation Housing Project is located in the middle of Shenfu New City, Shenyang City, east to Jinfeng Street, south to Shenfu Avenue, west to Guihua Road, and north to Wangjia Phase I. The floor and stairs from the second floor are PC components, totaling 1988 pieces. The method of immediate implantation of anchoring steel bars is adopted, with high precision and stable anchoring, which can reduce the loss of steel bars and labor waste caused by inaccurate positioning, and reduce hoisting When the PC stairs hover to adjust the time and reduce safety risks, this construction method has been successfully used in the construction of this project, and has achieved good results in terms of quality, safety and cost.
[0031] The construction steps are as follows:
[0032] PC stairs are hoisted, hoisted to the stair beam for alignment adjustment, lowered to the stair beam for fine-tuning, and drilled in the center of the anchor hole positio...
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A method for instant implantation of anchoring steel bars for PC stairs, which is used to directly implant anchoring steel bars at the anchoring holes of PC stairs during hoisting. After the PC stairs hoisting alignment is completed through coarse adjustment and fine adjustment, the hoisting steel wire rope is not removed, and the anchoring steel bars are implanted. It can be dismantled at the rear to avoid safety accidents caused by the falling of PC stairs due to the problem of no anchoring steel bars, and greatly reduce the hovering time of PC stairs during alignment adjustment. The hovering adjustment time of each ladder section in the air is reduced by about 10 minutes, reducing safety. risk.
Description
technical field [0001] The invention relates to a construction method for immediate implantation of anchoring steel bars, in particular to an anchoring method for precise hoisting of PC components. Background technique [0002] According to the installation accuracy requirements of the PC components of the stairs, the anchor holes must be aligned with the pre-embedded anchor bars on the stair beams during the construction of the stairs. However, most of the existing construction methods are to directly tie the anchor bars when binding the stair beams, and the exposed parts during pouring It is the anchorage section. Although this method can maximize the stability of the anchoring reinforcement, the inaccurate positioning during tying and the shaking of the reinforcement during the pouring process make the position deviation of the anchoring reinforcement too large, resulting in a large deviation in the hoisting of the PC member of the staircase. The anchor holes on the compo...
Claims
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IPC IPC(8): E04G23/02
CPCE04G23/0218
Inventor 闵阁龙代强夏德禹高士勇刘雪飞李贺赵天明
Owner MCC NORTHEAST CONSTR SHENYANG ENGTECH CO LTD