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Reinforced concrete steam turbine platform beam bolt casing pipe top template construction method

A reinforced concrete and construction method technology, which is applied in the direction of basic structure engineering, construction, etc., can solve the problems of no bolt casing pre-embedding method, bolt casing verticality deviation, integrity deviation, etc., and achieve simple structure and high installation accuracy , low cost effect

Active Publication Date: 2013-06-26
SHANDONG ZIJIAN GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the problem that there is no professional pre-embedding method for bolt sleeves in the foundation construction of reinforced concrete steam turbines in the prior art, which leads to conflicts between the bolt sleeves and the designed steel bars during the installation process, resulting in verticality deviation and displacement deviation of the bolt sleeves , Integral deviation defects, providing a bolt casing top formwork construction method for reinforced concrete steam turbine platform beams with high bolt casing installation accuracy

Method used

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Embodiment Construction

[0024] The steps of construction method of the present invention are as follows:

[0025] 1. When the steam turbine platform beam underframe and the bamboo and wood formwork of the present invention are installed, the requirements of the upper bearing capacity and the stability of the frame must be met.

[0026] 2. Round mold making and installation

[0027] 2.1 The round mold of the present invention is preferably but not limited to a plywood formwork with a thickness of 15mm. On the formwork, a circle is used to plan a circle according to the inner diameter of the bolt casing, and a hole opener is used to mechanically cut the circled template along the line, and the cut circle mold Use a steel ruler to check the diameter and roundness, and mechanically grind the edge of the upper end of the round die to make the edge of the round die have a certain slope.

[0028] 2.2 In order to prevent the size of the circular mold from being too large or too small, which will affect the ...

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Abstract

The invention particularly relates to a reinforced concrete steam turbine platform beam bolt casing pipe top template construction method which is characterized by including (1) a step of installing a steam turbine platform beam bottom template, (2) a step of manufacturing a circular template, (3) a step of flicking lines and lofting, (4) a step of fixing the circular template, (5) a step of conducting platform beam steel bar and template construction, installing longitudinal steel bar and transverse steel bars by avoiding the circular template according to a position of the installed circular template in the process of installation of the steel bars, installing a side template of a platform beam and an edge template of a reserved opening after installation of the steel bars are examined and received, (6) a step of installing bolt casing pipes, (7) a step of pouring concrete, (8) a step of vibrating and pounding the concrete, and (9) a step of removing the templates, and then removing the steam turbine platform beam side template and the bottom template after strength grade of the concrete meets requirements of the design, wherein the circular template can automatically drop along with the bottom template and the bolt casing pipes are communicated. The circular template is simple in structure, convenient to manufacture and install, low in cost and convenient to construct. The bolt casing pipes are high in installation accuracy.

Description

technical field [0001] The invention belongs to the construction field of reinforced concrete structures in construction engineering, and in particular relates to a method for constructing a reinforced concrete steam turbine platform beam bolt casing top form. Background technique [0002] At present, the reinforced concrete steam turbine foundations in the known power generation field are all connected with the steam turbine by long bolts, and almost no bolts are directly buried on the reinforced concrete steam turbine foundation, but carbon steel pipes are pre-embedded inside the reinforced concrete foundation. After the concrete construction is completed, After the equipment installation conditions are met, the long bolts are passed through the casing, so that one end of the bolt is anchored on the steam turbine equipment, and the other end is anchored under the reinforced concrete equipment foundation, so that the steam turbine equipment and the reinforced concrete founda...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D27/44
Inventor 廖玉东张富贵
Owner SHANDONG ZIJIAN GRP
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