Construction method of high-support formwork for large-diameter elliptical oblique cone structure
A construction method and high-support formwork technology, which is applied in the construction of buildings, construction, and the processing of building materials, etc., can solve the eccentricity of the eccentric force of the structure, and cannot meet the technical requirements for the construction of large-diameter elliptical inclined cone cylinder structures, etc. problems, to achieve the effect of high construction accuracy and strong operability
Active Publication Date: 2017-05-17
MCC NORTHEAST CONSTR SHENYANG ENGTECH CO LTD
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Problems solved by technology
[0003] In order to solve the above-mentioned technical problems, the invention provides a construction method of high-support formwork with large-diameter elliptical oblique cone cylinder structure. The formwork was removed to solve the technical problem that the construction method of the existing technology could not meet the technical requirements for the construction of the large-diameter elliptical cone structure because the structure was a large-span oblique cone, the structure was eccentrically stressed and the eccentricity was extremely large.
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[0031] The construction method of the high-support formwork of the large-diameter elliptical inclined-cone cylinder structure, the steps are:
[0032] 1) Template selection: film-coated plywood is used as the panel, 50*100mm wooden square is used as the vertical corrugation, and steel bars with a diameter of 22mm are used as the purlin;
[0033] 2), template making:
[0034] 2a) After the raft foundation construction is completed, accurately set out the positioning line of the inner and outer cylinder walls on the foundation ground;
[0035] 2b) The template is made of 1220mm*2440mm film-coated plywood, and the side length of 1220mm is centered on the back of the template, and the seam is cut along the length to a depth of 1 / 2 of the thickness of the board to ensure the smoothness of the arc.
[0036] 2c), the design drawings provide a plane positioning map every 0.75m, and determine 3.75m as the height of each formwork;
[0037] 3), template positioning:
[0038] 3a) Obtai...
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The invention creatively provides a method for high-formwork construction of a large-diameter oval oblique-cone structure, wherein a template type is selected at first, the template is then fabricated, positioned and installed, and the template is dismantled after the construction. The construction structure in the type of construction is a large-span oblique cone, and the structure bears force eccentrically with a very large eccentric distance, so a conventional template supporting method cannot satisfy requirements of the structure for force bearing. The structure has complicated design, wherein the plane face is an irregular circle, the stereoscopic shape is an oblique core tube-in-tube structure with a large span, and the structure requires high precision. The method provided by the invention is strong in practicability and operability and high in construction precision, and makes up former absence of a construction method for template engineering of a large-diameter oval oblique-cone tube structure.
Description
technical field [0001] The invention relates to a construction method, in particular to a construction method of a high-support formwork with a large-diameter elliptical oblique cone cylinder structure. Background technique [0002] Formwork engineering is a very important step in reinforced concrete construction and the basis of modern construction engineering. As an indispensable construction process in modern construction industry, formwork engineering should also be innovated with the development of construction industry. In modern buildings, there are already many precedents of large-diameter elliptical oblique cone-shaped buildings. Traditional construction methods for this type of building construction can no longer meet the construction requirements of this type of building. There is no specific design for this type of building. Therefore, it is imminent to provide a construction method with strong operability and good practicability for the high-support formwork of ...
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IPC IPC(8): E04G21/00
Inventor 胡长亮韩越代强周嗣延梁兵韩腾飞刘磊
Owner MCC NORTHEAST CONSTR SHENYANG ENGTECH CO LTD