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Pre-buried hanging nail construction method for precast concrete plank

A technology of prefabricated concrete slabs and construction methods, applied in the direction of manufacturing tools, metal processing equipment, ceramic molding machines, etc., can solve the problems of inability to meet the appearance and turnover requirements of prefabricated concrete slabs, low construction efficiency, cumbersome slings, etc. Achieve the effect of meeting the appearance and turnover requirements, improving construction efficiency and saving procurement costs

Inactive Publication Date: 2019-11-05
NO 1 ENG COMPANY CO LTD OF CCCC FIRST HARBOR ENG COMPANY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] During the construction, the pavement adopts assembled prefabricated concrete slabs. The existing hanging point technology of precast concrete slabs usually uses round steel as the hanging point. There is a problem that the steel bars are exposed. After cutting the steel bars, they cannot be reused, resulting in a certain amount of waste. The steel bars after cutting are not easy Blocking, low construction efficiency, and cumbersome slings, which cannot meet the appearance and turnover requirements of precast concrete slabs

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] A construction method for pre-embedded hanging nails for prefabricated concrete slabs, the steps of which are as follows:

[0036] (1) The prefabricated slab steel bars are composed of upper and lower layers of steel mesh sheets. The steel mesh sheets are manually bound first, and the whole is transported into the mold for construction. When the steel bars are bound, a limit frame is used to control the distance between the steel bars. The lead wires must be firm when binding. Press down on the side of the steel bar, and it is forbidden to go deep into the protective layer. When binding the steel mesh, the lead wire buckle is a plum blossom-shaped jump buckle at a little interval;

[0037] (2) The prefabricated slab formwork adopts shaped steel formwork. The prefabricated slab formwork is composed of four side forms and a bottom formwork. It is prefabricated with a squat bottom. The side forms and side forms of the formwork, and the side form and the bottom form are all ...

Embodiment 2

[0045] A construction method for pre-embedded hanging nails for prefabricated concrete slabs, the steps of which are as follows:

[0046] (1) The prefabricated slab steel bars are composed of upper and lower layers of steel mesh sheets. The steel mesh sheets are manually bound first, and the whole is transported into the mold for construction. When the steel bars are bound, a limit frame is used to control the distance between the steel bars. The lead wires must be firm when binding. Press down on the side of the steel bar, and it is forbidden to go deep into the protective layer. When binding the steel mesh, the lead wire buckle is a plum blossom-shaped jump buckle at a little interval;

[0047](2) The prefabricated slab formwork adopts shaped steel formwork. The prefabricated slab formwork is composed of four side forms and a bottom formwork. It is prefabricated with a squat bottom. The side forms and side forms of the formwork, and the side form and the bottom form are all b...

Embodiment 3

[0055] A construction method for pre-embedded hanging nails for prefabricated concrete slabs, the steps of which are as follows:

[0056] (1) The prefabricated slab steel bars are composed of upper and lower layers of steel mesh sheets. The steel mesh sheets are manually bound first, and the whole is transported into the mold for construction. When the steel bars are bound, a limit frame is used to control the distance between the steel bars. The lead wires must be firm when binding. Press down on the side of the steel bar, and it is forbidden to go deep into the protective layer. When binding the steel mesh, the lead wire buckle is a plum blossom-shaped jump buckle at a little interval;

[0057] (2) The prefabricated slab formwork adopts shaped steel formwork. The prefabricated slab formwork is composed of four side forms and a bottom formwork. It is prefabricated with a squat bottom. The side forms and side forms of the formwork, and the side form and the bottom form are all ...

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Abstract

The invention discloses a pre-buried hanging nail construction method for a precast concrete plank. The pre-buried hanging nail construction method comprises the following steps that a prefabricated slab steel bar is bound; a prefabricated slab template is bolted; hanging nails to be used are fixed on a limiting frame; the bottom of the hanging nails is fixedly connected with a steel bar bottom layer which is formed in the bound mode, and pouring concrete is prepared; after acceptance of the prefabricated plate template is qualified, and the concrete is vibrated by adopting a vibrating rod; the concrete is stopped for 15 minutes after vibration is completed to perform surface plastering; after the concrete is poured, steam is adopted for curing; and after concrete forming, the prefabricated concrete plate is hoisted to a component storage area for standby application. Compared with the prior art, after use, mortar is used for blocking off, cutting and exposure are not needed, the purchasing cost of round steel is saved, wire rope sling is single and not tedious, and the construction efficiency is improved; the bottom of the hanging nails is fixedly connected with the steel bar bottom layer formed by binding, so that the hanging nails are prevented from displacing during concrete pouring, and the appearance and turnover use requirements of the prefabricated concrete plate are met.

Description

technical field [0001] The invention relates to the technical field of pre-embedded hanging nails, in particular to a construction method for pre-embedded hanging nails for prefabricated concrete slabs. Background technique [0002] In building construction, as a necessary condition for construction, the construction of temporary roads for construction projects, in order to prevent a large amount of construction waste caused by the extensive use of disposable temporary facilities, resulting in a waste of construction resources, according to the national standard "Green Construction Evaluation Standard" As well as the green construction guidelines and the implementation of green construction "four sections are energy saving, land saving, water saving and material saving, one environmental protection" requirements, in the hardening of temporary roads on the construction site, the promotion and application of prefabricated reusable temporary road slabs technology. [0003] Dur...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B28B1/093B28B1/29B28B11/24B28B23/00B28B23/02B21F33/00
CPCB21F33/00B28B1/0935B28B1/29B28B11/245B28B23/0056B28B23/02
Inventor 宫云增梁永杰王也枫孙文飞李永生张福亮
Owner NO 1 ENG COMPANY CO LTD OF CCCC FIRST HARBOR ENG COMPANY
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