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Annular furnace base movable thread stand bolt positioning method

A bolt positioning and annular furnace technology, which is applied in infrastructure engineering, construction and other directions, can solve problems such as affecting the quality of bolt installation, many procedures for installing bolts, and difficult to ensure accuracy, and achieves solutions to large material consumption, reduction of construction procedures, and reduction of engineering. cost effect

Inactive Publication Date: 2010-06-23
ANGANG CONSTR CONSORTIUM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Using this method to install bolts requires many procedures and consumes a lot of materials. It is necessary to use a square on the steel plate when laying out the wires. The accuracy is not easy to guarantee, which affects the quality of bolt installation.

Method used

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  • Annular furnace base movable thread stand bolt positioning method
  • Annular furnace base movable thread stand bolt positioning method

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Effect test

Embodiment Construction

[0020] The present invention is further illustrated below by specific examples.

[0021] This embodiment is an application example in the φ177 oil pipe engineering annular furnace foundation.

[0022] 1. Equipment and material preparation:

[0023] a. Welding equipment: one electric welding machine.

[0024] b. ∠50×5 angle steel, §=6mm steel plate, φ20 threaded steel bar.

[0025] c. One total station.

[0026] 2. Production of movable wire frame:

[0027] a. Use ∠50×5 angle steel to weld the 800×600 frame, and use a 6mm thick 600×400 steel plate in the middle to weld firmly with the angle steel frame.

[0028] b. Make two perpendicular lines at the center of the steel plate and mark them.

[0029] 3. Welding of steel bar fixing frame: Weld a closed and continuous fixing frame on the bound steel mesh, as a measurement point, the fixing frame should be stable and firm.

[0030] 4. Total station ranging projection point:

[0031] a. Set up the total station at the center ...

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Abstract

The invention relates to an annular furnace base movable thread stand bolt positioning method. The method is implemented by arranging a total station at the central point of the annular base, putting the marked movable thread stand on a reinforcing steel bar fixing stand, moving the movable thread stand so that one straight line on the movable thread stand steel plate is in superposition with the straight line of the positioning bolt group, which passes through the central point of the annular base; the reinforcing steel bar fixing stand is marked; the total station is used for measuring the distance L from the central point of the annular base to central points of two mutually orthogonal straight lines on the movable thread stand, the difference value A between distance L and the radius R of the group of bolts is calculated, the position points of the group of bolts can be determined according to the difference value and marked on the reinforcing steel bar fixing stand to realize positioning the bolts. The method adopts the movable thread stand to mark on the reinforcing steel bar fixing stand, thus dispensing with quantities of steel plates or profile steel, being simple and fast, saving materials, and having precise positioning.

Description

technical field [0001] The invention relates to a pre-embedded bolt positioning method for industrial and civil circular foundations. Background technique [0002] Multiple groups of pre-embedded bolts (up to 160 groups) distributed annularly on the foundation of industrial annular heating furnaces and sintering ring cold pits and other large-scale annular equipment are the key process of foundation construction, and their accuracy directly affects the installation quality of the next process. [0003] Since the bolts are distributed on the ring, it is more difficult to measure and set out. The traditional installation method for measuring and setting out is: use §=4-6mm steel plate or 16a channel steel as the plane of the overall bolt fixing frame, lay out the line on it, drill holes to install bolts, and each group of bolts needs a steel plate with a size of 1.2 meters × 1.2 meters Or [12 channel strip 5.5 meters. Using this method to install bolts requires many procedur...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D27/44
Inventor 郝卫国钟一坚吴长荣黄云广
Owner ANGANG CONSTR CONSORTIUM
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