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Installing and constructing method of large-span semi-open elliptical spherical reticulated shells

A technology of ellipsoidal surface and construction method, which is applied in the direction of building components, arch structures, dome structures, etc., can solve the problems of high quality requirements for production and installation, heavy welding workload, and low construction efficiency, so as to reduce welding production Difficulty, low construction cost, and the effect of improving processing quality

Active Publication Date: 2020-07-10
CHINA RAILWAY ERJU 1ST ENG
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Problems solved by technology

[0004] The invention provides a method for installing and constructing a large-span semi-open ellipsoidal single-layer reticulated shell steel structure to solve the problem that the large-span reticulated shell structure similar to the rock climbing gym has a large construction welding workload and high quality requirements for production and installation. There are problems such as low construction efficiency and large safety hazards

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  • Installing and constructing method of large-span semi-open elliptical spherical reticulated shells

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Embodiment

[0034] Taking the climbing gymnasium of Qingzhen Sports Training Base as an example, the roof steel structure of the rock climbing gymnasium is shaped like two semi-open spherical reticulated shells, which are divided into three parts: the upper shell 1, the middle pipe truss 3, and the lower shell 2. The long axis The span is 46.2m, and the rise height is 9m. The upper part of the single-layer reticulated shell is connected as intersecting joints. The support form of the truss is point support. The support adopts fixed hinge support and two-way sliding hinge support. The height of the middle pipe truss is 31.7 meters. It is divided into two parts for hoisting (the lower CD pipe truss and the upper AB pipe truss) and the middle part is loosely assembled. The lower C D pipe truss weighs 42 tons (it is hoisted as a whole after being assembled on the ground), and there are 15 in the middle. The average weight of the web unit is 0.85 tons (after the CD pipe truss is hoisted, it is ...

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Abstract

The invention provides an installing and constructing method of a steel structure with large-span semi-open elliptical spherical single-layer reticulated shells. The method of the splicing, welding, deformation controlling, positioning and elevation controlling of trusses of the steel structure and the supporting of supports is adopted, and relevant technical safety measures are taken in place, sothat the construction safety can be ensured, the installing quality of the steel structure is improved, and the distribution of splicing and welding construction resources of the steel structure is optimized. The problems that an existing large-span reticulated shell structure is extremely high in construction cost, low in construction efficiency and large in potential safety hazard are solved. The invention belongs to the field of building construction steel structure work.

Description

technical field [0001] The invention relates to a method for installing and constructing a large-span semi-open elliptical spherical single-layer reticulated shell steel structure, which belongs to the field of steel structure engineering for building construction. Background technique [0002] With the progress of society and the development of economy and science and technology, people's life pursuit and aesthetic concept are getting higher and higher, and some new-style building structures have emerged. In recent years, a large-span curved shell structure ( The span is generally more than 20-40 meters) single-layer reticulated shell steel structure has gradually become a representative of many novel architectural shapes, and has gradually been emulated. [0003] At present, most of the grid structures in China adopt the method of assembling the whole or sub-units on the ground before hoisting during the construction process, while the rock climbing gym occupies a large ar...

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Application Information

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IPC IPC(8): E04B1/32
CPCE04B1/3211E04B2001/3229
Inventor 蔡家俊吴松聂翔龚建伟雍婷婷吴真元邓彪吕廷国谭智伟
Owner CHINA RAILWAY ERJU 1ST ENG
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