Construction process of large span complex arch roof
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A construction technology and large-span technology, applied to roofs, building components, buildings, etc., to achieve the effects of easy assembly, reducing high-altitude operations, and reducing labor intensity
Inactive Publication Date: 2020-09-29
QINGDAO XINHUAYOU CONSTR GROUP
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Abstract
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Problems solved by technology
In view of the situation that the steel truss hoisting equipment of the entrance roof cannot enter the site for hoisting, the 3D field layout software is used to simulate the equipment entering the site in advance, combined with the site survey, after analyzing and calculating the weight of the components, a large crawler crane is used to stop outside the site for hoisting steel truss members
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Embodiment 1
[0067] The large-span complex arch roof construction technology provided in this embodiment includes the following steps:
[0068] (1) Set up the tire frame directly below the installation position of the floor arch, and assemble the floor arch on the tire frame, and assemble it step by step from low to high.
[0069] (2) Hoisting the first and second arches in the middle.
[0070] (3) The crawler crane lifts the first truss column of the 1st axis and the 18th axis
[0071] 1) Before the truss hoisting operation, the command signal should be unified, and all construction personnel must be familiar with this signal.
[0072] 2) All construction personnel involved in hoisting must be familiar with the project content and hoisting methods.
[0073] 3) During hoisting, the entire site is assigned by a general commander, and the sub-commanders at each post should correctly and quickly implement the orders of the general commander, so as to transmit signals quickly and correctly, ...
Embodiment 2 application example
[0103] The main hall of the International Exchange Center of China Petroleum Equipment Industry Base
[0104]The main hall of the International Exchange Center of China Petroleum Equipment Industry Base is located in the east of Xier Road, Dongying District, Dongying City, Shandong Province, west of Yanshan Road, and north of Naner Road. The building structure is reinforced concrete frame shear wall structure and steel structure, with a total construction area of 52,745㎡ and a curtain wall of about 59,000㎡. The total construction area is 52,745㎡, and the curtain wall is about 59,000㎡. The entrance of the exhibition hall adopts a steel pipe truss structure system, the spacing between truss columns is 9.0m, and the maximum span is 23.0m. The steel truss members are round steel pipes made of Q345B steel, and the steel pipes are directly intersected with welded joints. The trusses are spatial triangular trusses and quadrilateral trusses, and there are support rods between the ...
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Abstract
The invention discloses a construction process of a large span complex arch roof. The construction process comprises the following steps of (1) erecting a bed-jig right below a landing arch mounting position; (2) hoisting a first arch and a second arch in the middle; (3) hoisting a first truss column of shaft 1 and shaft 18 by a crawler crane; (4) hoisting the first truss column of a shaft 2 withthe crawler crane continuously, additionally arranging a hawser immediately for stabilization after the first truss rack is in position, mounting a corresponding partial wall beam to form a stable structure, wherein the structural safety is ensured; (5) hoisting a second truss column of the shaft 1 continuously, and mounting the corresponding partial truss beam immediately after the truss column is mounted to form a stable structure; (6) hoisting the second truss column of the shaft 2 similarly as well as corresponding main and secondary truss beams, and mounting the corresponding partial wallbeam immediately to form a stable structure; (7) continuously mounting the truss column and the truss beam according to the steps; and (8) finally, finishing all mounting work. By adopting the process, within a limited construction period, the construction quality and the construction safety are ensured effectively, a designed demand is fully met, and the construction process has obvious social and environmental-friendly benefits.
Description
technical field [0001] The invention relates to a construction technique for a large-span complex arched roof, belonging to the technical field of building construction. Background technique [0002] With the rapid development of the national economy and large-scale urbanization, large-span complex arched roofs are common steel structures in modern public construction projects. They are often found in entrance truss roofs and curtain wall steel frames in public construction projects. Their characteristics are The span is large, there are many high-altitude assembly operations, and the installation accuracy is high. How to obtain scientific, reasonable, high-quality and safe installation is the purpose of this construction method. [0003] The entrance roof of the exhibition hall adopts a steel pipe truss structure. The trusses are space triangular trusses and quadrilateral trusses. The trusses are assembled on the top and hoisted after assembling. The truss columns are hoi...
Claims
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Application Information
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