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Dam concrete steel formwork structure and construction and installation method thereof

An installation method and technology of steel formwork, which are applied in basic structure engineering, water conservancy engineering, marine engineering and other directions, can solve the problems of inconvenient operation of the formwork, insufficient structural rigidity, cumbersome operation, etc., and achieve simple structure, simple construction and installation, and reduce the temperature difference between inside and outside. Effect

Active Publication Date: 2019-10-22
CHANGJIANG RIVER SCI RES INST CHANGJIANG WATER RESOURCES COMMISSION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, during the construction process of this kind of formwork, due to the insufficient rigidity of the whole structure, the deformation is relatively large, and at the same time, the double-axis rod structure brings great inconvenience to the operation of the formwork
Every time the vertical formwork is removed, one of the shafts needs to be disconnected. After the formwork is adjusted in place, it is reinstalled in place, which is not only difficult to adjust but also cumbersome to operate.

Method used

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  • Dam concrete steel formwork structure and construction and installation method thereof
  • Dam concrete steel formwork structure and construction and installation method thereof
  • Dam concrete steel formwork structure and construction and installation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] Such as figure 1 with 2 As shown, a dam concrete steel formwork structure, the steel formwork structure includes a panel 1 and a truss assembly on one side of the panel,

[0036] The truss assembly includes a first vertical support 2 and a second vertical support 3, at least two horizontal supports are arranged between the first vertical support 2 and the second vertical support 3, and the horizontal supports The ends of the first vertical support 2 and the second vertical support 3 are respectively screwed together through the mounting plate 7 to form a quadrilateral structure, and the opposite corners of the quadrilateral structure are also provided with inclined supports 6; the first The vertical support 2 is arranged close to the panel 1, and a foot 8 is provided under the first vertical support 2; an adjustment rod 9 is provided under the second vertical support 3, and the adjustment rod 9 is screwed On the mounting plate 7; a working platform 12 is provided on t...

Embodiment 2

[0045] Such as image 3 As shown, a dam concrete steel formwork structure, the steel formwork structure includes a panel 1 and a truss assembly on one side of the panel, the longitudinal section of the panel is rectangular, 3 meters long and 3 meters high;

[0046] The truss assembly includes a first vertical support 2 and a second vertical support 3, an upper horizontal support 4, a lower horizontal support 5 and The middle horizontal support 16, the upper, middle and lower horizontal supports and the ends of the first vertical support 2 and the second vertical support 3 are respectively screwed together through the mounting plate 7 to form two quadrilateral structures. A first inclined support 602 is provided between the support 4 and the middle transverse support 16, and a second inclined support 601 is provided between the lower transverse support 5 and the middle transverse support 16; the first inclined support 602 and One end of the second inclined support 601 close to...

Embodiment 3

[0052] A construction and installation method of a dam concrete steel formwork structure, the construction and installation method comprises the following steps:

[0053] Step 1: Divide the dam into upper and lower multi-layer construction areas according to the construction drawings, divide and number the construction areas of each layer according to the construction drawings, and lay the steel formwork structure from the bottom construction area;

[0054] Step 2: Check the flatness of the bottom plate in the construction area, apply a mortar leveling layer, and pre-embed the tension module in it, and the tension module is connected with tension bars;

[0055] Step 3: During the process of step 2, prepare the steel formwork, assemble the steel formwork structures in batches in advance, clean them up, and label them for later use;

[0056] Step 4: Install the steel formwork structure in the construction area, install it in the order of horizontal first and then vertical or fir...

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Abstract

The invention discloses a dam concrete steel formwork structure and a construction and installation method thereof. The steel formwork structure comprises a face plate and a truss assembly. The trussassembly comprises a first vertical bracing, a second vertical bracing and transverse bracings. The transverse bracings are in screw connection with the ends of the first vertical bracing and the second bracing through mounting plates to form a quadrangle structure. A plurality of inclined bracings are arranged at opposite angles of the quadrangle. Supporting legs are arranged below the first vertical bracing. Adjusting rods are arranged below the second vertical bracing. The adjusting rods are in screw connection with the mounting plates. A grid frame is arrayed on the side, close to the first vertical bracing, of the face plate. The grid frame is filled with a heat insulation material. The surface, far away from the first vertical bracing, of the face plate is coated with a release coating. The dam concrete steel formwork structure is simple, easy to adjust, stable and firm after installation in place, good in heat insulation effect and capable of adapting to pouring of concrete in different positions.

Description

technical field [0001] The invention relates to the technical field of mass concrete, in particular to a dam concrete steel formwork structure and a construction and installation method thereof. Background technique [0002] The dam concrete formwork project is very critical. Every detail can affect the quality of the dam. From the formwork selection, processing, installation and subsequent construction, every link will have an impact on the quality of the dam. According to the structural characteristics of the dam, the dam engineering formwork mainly adopts combined planar steel formwork, wooden formwork, Doka cantilever flip formwork, processed wooden formwork, bulk steel formwork, etc. The upstream and downstream surfaces of the dam body above the foundation are mainly constructed with stereotyped combined Doka cantilever flip formwork, and the foundation is constructed with loose composite steel formwork. The formwork of the transverse joint surface of the dam body adop...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02B7/02E02D15/00
CPCE02B7/02E02D15/00
Inventor 李家正李明霞颉志强张亮李扬林育强董芸苏海东周世华陈琴崔建华覃茜陕亮李响王晓军陈群山
Owner CHANGJIANG RIVER SCI RES INST CHANGJIANG WATER RESOURCES COMMISSION
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