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Large-height-difference long-span stiff-skeleton cladding concrete formwork construction method and apparatus

A technology of outsourcing concrete and rigid skeleton, which is applied in the field of formwork/formwork/work frame, preparation of building components on site, construction, etc., which can solve the problems of low utilization rate of formwork, high construction safety risk, and formwork removal, etc., to achieve High-precision installation, the effect of reducing the risk of work safety

Pending Publication Date: 2017-04-26
CHINA RAILWAY 18TH BUREAU GRP CO LTD
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Problems solved by technology

[0002] At present, the concrete floor formwork of the same type of railway bridge at home and abroad mainly adopts the traditional method of installing the bottom form on the bottom of the stiff frame in advance and hoisting it together during the installation process of the stiff frame. Disadvantages such as dismantling the formwork at high altitude, difficulty in turnover, low utilization rate of formwork, and high construction safety risks

Method used

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  • Large-height-difference long-span stiff-skeleton cladding concrete formwork construction method and apparatus
  • Large-height-difference long-span stiff-skeleton cladding concrete formwork construction method and apparatus
  • Large-height-difference long-span stiff-skeleton cladding concrete formwork construction method and apparatus

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Embodiment

[0033] The three groups of Baileys are 30m long, and the distance between each group of Baileys is 3m. Each group of Baileys is connected by [12 channel steel, which acts as the main stress system of the bottom operation platform.

[0034] The bottom platform is fixed on the bottom of the Bailey sheet with [12 channel steel 1m / way, and the top of the channel steel is covered with wooden boards (specification: 400*30*4cm) and fixed firmly with steel bars as a whole, which functions as a personnel operating platform during the formwork installation process .

[0035] The top platform is connected with the Bailey sheet by using [12 channel steel 1m / channel on the top of the Bailey sheet, and it functions as a platform for the formwork to be placed.

[0036] The pole beam is welded by double I28 I-beams. There are two pieces in total, one for each of the two sections of the Bailey beam; the two sections on the top of the pole beam are provided with lifting lugs, which are made of ...

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Abstract

The invention discloses a large-height-difference long-span stiff-skeleton cladding concrete formwork construction method and apparatus, and belongs to the technical field of concrete formwork construction. The apparatus comprises a bottom operation platform, a top operation platform and a cable hanger. The bottom operation platform is composed of three sets of beret pieces, a bottom platform, a top platform, and a carrying pole beam. The top operation platform is composed of a main bearing beam, an operation platform, winches, electric travel blocks, power distribution cabinets, lugs, a bottom form, lower web forms, upper web forms, a lifting rod, tie rods, U-shaped bolts, barriers, and pads. The large-height-difference long-span stiff-skeleton cladding concrete formwork construction method and apparatus provide high-speed high-precision mounting of aerial arch bridge arch ring cladding concrete formworks under strong wind, operation safety risk is greatly reduced, and the method and apparatus are suitable particularly for the overall lifting, transferring and removing of long-span large-height-difference arch bridge stiff-skeleton cladding concrete bulky formworks.

Description

technical field [0001] The invention discloses a construction method and construction equipment for lifting, installing and turning over a large concrete overweight formwork covered with a stiff framework under the condition of large height difference and large span, and belongs to the technical field of concrete formwork construction. Background technique [0002] At present, the concrete floor formwork of the same type of railway bridge at home and abroad mainly adopts the traditional method of installing the bottom form on the bottom of the stiff frame in advance and hoisting it together during the installation process of the stiff frame. The formwork is dismantled at high altitude, the turnover is difficult, the formwork utilization rate is low, and the construction safety risk is high. The second-level lifting platform is used to install and transport the outsourcing base plate formwork after the overall installation of the rigid frame is completed. Compared with the tr...

Claims

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Application Information

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IPC IPC(8): E04G11/22
CPCE04G11/22
Inventor 黄欣于长彬樊秋林杨继明贺常松刘利尹黔贾连科曾杰彪程志良姜长斌田万东严德育王永福李波袁帅赵静波
Owner CHINA RAILWAY 18TH BUREAU GRP CO LTD
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