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Beam slab temporary support capable of achieving simple supporting first and then continuous operation and using method thereof

A technology of simple support first and then continuous and temporary support, which is applied to bridges, bridge parts, bridge construction, etc., can solve the problems of cumbersome sand tank settlement test, low accuracy of adjustment and control of sand tank settlement, etc., to achieve Improve application stability, simple structure, and convenient disassembly

Pending Publication Date: 2020-12-22
ERCHU CO LTD OF CHINA RAILWAY TUNNEL GRP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The shortcoming of the sulfur mortar temporary support is that the sand tank settlement test is cumbersome, and if the calculated working conditions are inconsistent with the actual working conditions, the accuracy of adjusting and controlling the sand tank settlement is not high
[0006] The disadvantage of the piston sleeve type temporary support is that the sand tank settlement test is cumbersome, and if the calculated working conditions are inconsistent with the actual working conditions, the accuracy of adjusting and controlling the sand tank settlement is not high

Method used

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  • Beam slab temporary support capable of achieving simple supporting first and then continuous operation and using method thereof
  • Beam slab temporary support capable of achieving simple supporting first and then continuous operation and using method thereof
  • Beam slab temporary support capable of achieving simple supporting first and then continuous operation and using method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0054] Such as figure 1 with Figure 4 As shown, a temporary beam-slab support that is simply supported first and then continuous, including:

[0055] The top steel plate 1, the upper surface of the top steel plate 1 abuts against the bottom end of the beam body 5 to support the beam body 5;

[0056] The supporting steel plate 2, the upper end of the supporting steel plate 2 is fixedly connected to the top steel plate 1;

[0057] The bottom steel plate 3, the lower end of the support steel plate 2 is fixedly connected to the bottom steel plate 3, and the lower surface of the bottom steel plate 3 abuts against the top of the pad;

[0058] The cutting groove 4 is fixedly arranged on the outer side of the supporting steel plate 2 to guide the oxyacetylene cutting device.

[0059] In the previous engineering construction, the oxyacetylene cutting device was manually operated, and the incision was not neat, which made it difficult to take out the temporary support.

[0060] In ...

Embodiment 2

[0081] In step 2.1, before placing the temporary support, it also includes the step of preparing the pad stone roof:

[0082] Step 2.11, grinding the upper surface of the pad stone top so that the upper surface of the pad stone top is relatively horizontal;

[0083] Step 2.12, prepare anti-carbonization coating, adopt 10 parts of cement, 12 parts of steel slag powder, 16 parts of styrene-acrylic emulsion, 2 parts of polyvinyl formal, 2 parts of rosin, 3 parts of ammonium acrylate, 0.2 parts of Dispersant, 0.1 part of antifoaming agent and 0.1 part of stabilizer, the above-mentioned components are by mass, and the above-mentioned components are mixed and stirred until milky, and the anti-carbonization coating is obtained;

[0084] Step 2.13, use a paint spray gun to spray on the upper surface and side wall of the pad stone roof. After the spraying is completed, wait for the anti-carbonization coating to dry naturally, and then spray again. After the anti-carbonization coating i...

Embodiment 3

[0086] In step 1, the step of fixing the pressure sensor on the top steel plate 1 is also included.

[0087] In step 2.3, the pressure values ​​of the temporary supports on the first pier and the second pier are collected to confirm that the gravity of the girder is not all pressed on the temporary supports.

[0088] In step 2.4, the pressure values ​​of the temporary supports on the first pier and the second pier are collected again to confirm that the gravity of the beam body is all pressed on the temporary supports.

[0089] In the actual application process, the pressure value of each temporary support is displayed on the display interface of the operator of the beam hoisting equipment, and the operator judges the stress state of each temporary support according to the pressure value displayed on the display interface. This is used to control the operation of the beam lifting equipment.

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Abstract

The invention discloses a bridge temporary support capable of achieving simple supporting first and then continuous operation and a using method thereof. The temporary support comprises a top steel plate, a supporting steel plate, a bottom steel plate and a cutting groove; the upper surface of the top steel plate abuts against the bottom end of a beam body so as to support the beam body; the upperend of the supporting steel plate is fixedly connected to the top steel plate; the lower end of the supporting steel plate is fixedly connected to the bottom steel plate, and the lower surface of thebottom steel plate abuts against a padstone top; and the cutting groove is fixedly formed in the outer side of the supporting steel plate so as to guide an oxygen acetylene cutting device. The methodcomprises the following steps of 1, manufacturing the temporary support; and 2, using the temporary support. According to the temporary support and the using method thereof, the structure is simple,dismounting is convenient and fast, and a kerf can be straight when the temporary support is cut; and a pressure sensor is fixed to the top steel plate, so that the pressure between the beam body andthe temporary support can be clearly known, and the state that the beam body is pressed on the temporary support can be accurately judged.

Description

technical field [0001] The invention relates to the technical field of temporary supports for bridge engineering, in particular to a temporary support for simply supported bridges and a method for using the same. Background technique [0002] As an essential tool in the construction of simply supported bridges and then continuous girder bridges, temporary supports are the force-transmitting body that bears the beam body in a simply supported state, and provides the necessary conditions for the continuous operation of the beam body until the continuous operation of the bridge is completed. be dismantled. There are two types of temporary supports commonly used at present. [0003] One is the temporary support of sulfur mortar, and the application of sulfur mortar: put sulfur or industrial powder (such as diabase powder) in an iron pot, heat it to 130 ° C ~ 140 ° C to melt it, and then add clean medium sand edge Stir until uniform while heating (the weight ratio of sulfur to ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01D19/04C09D4/02C09D4/06C09D7/61C09D1/08
CPCC09D1/08C09D4/06C09D7/61E01D19/048
Inventor 赵宝锋朱永学曹露平王丙坤李社伟李志军蒋勇张成勇冯前进杨娟郭立亚刘英王秋林卢素明张剑谭登红谢丰泽王研汪龙辉厉文龙史勇
Owner ERCHU CO LTD OF CHINA RAILWAY TUNNEL GRP
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