Steel-concrete structure for suspended arch beam of large-span underground factory building
A technology for concrete structures and underground workshops, which is applied to ceilings, building components, building structures, etc. It can solve the problems of bearing capacity, poor corrosion resistance and fire protection, large construction interference, and low efficiency, and achieves small construction interference and convenient construction , high efficiency effect
Pending Publication Date: 2019-03-15
POWERCHINA HUADONG ENG COPORATION LTD
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Problems solved by technology
Light-weight steel arch beams have the advantages of quick installation and convenient construction, but poor bearing capacity, corrosion resistance, and fire resistance; vertical formwork cast-in-place concrete structures have the advantages of strong bearing capacity, strong corrosion resistance, and good fire resistance, but need Use the ceiling trolley to set up the formwork, bind the steel bars and pour the concrete, and the formwork can only be removed after the concrete reaches the age required for the design strength, so the construction interference is large, the efficiency is low, and the construction period is long
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Embodiment Construction
[0015] Such as figure 1 , figure 2 As shown, this embodiment is a steel-concrete structure with a steel arch beam and a concrete structure on the ceiling of a large-span underground factory building.
[0016] In this embodiment, the steel arch beam has four full-length angle steels 1 arranged along the entire length of the steel arch beam. The four full-length angle steels 1 are respectively arranged at the four corners of the steel arch beam section. Limiting stirrup 2 links to each other. The limit stirrups 2 are arranged at a distance of 150mm along the length direction of the full-length angle steel 1. The limit stirrups are composed of four steel bars arranged around the arch beam section. The limit stirrups 2 and the full-length angle steel 1 are connected by welding , using full welding, the height of the weld shall not be less than the minimum thickness of the connecting member.
[0017] There are several internal reinforced angle steels 4 inside the steel arch bea...
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The invention relates to a steel-concrete structure for a suspended arch beam of a large-span underground factory building and aims to provide the steel-concrete structure for the suspended arch beamof the large-span underground factory building which has the advantages of strong bearing capacity, strong corrosion resistance, good fireproof performance, quick installation and convenient construction. According to the technical scheme, the concrete structure is characterized by comprising a steel arch beam, wherein the bottom and two sides of the steel arch beam are coated with thin steel plates to form a concrete pouring groove, and concrete is filled in the concrete pouring groove and vibrated and compacted. The structure is suitable for a cast-in-situ suspended arch beam structure of alarge-span cavity of a main factory building in an underground factory building.
Description
technical field [0001] The invention relates to a steel-concrete structure of a suspended ceiling arch beam of a large-span underground factory building. It is suitable for the cast-in-situ suspended ceiling arch beam structure of the large-span cavern of the main factory building in the underground factory building. Background technique [0002] In the large-span cavern layout of the main workshop in the underground workshop, a ventilation layer is generally arranged between the ceiling structure and the rock wall of the top arch, and the ceiling structure is used as the floor of the ventilation layer. device. Another important function of the suspended ceiling structure is to serve as a reliable waterproof barrier for the underground workshop, which can prevent water seepage from the rock wall of the top arch from dripping directly into the generator layer in the main workshop, affecting the normal operation of the unit and the working environment of the employees. In ad...
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IPC IPC(8): E04B9/00E04B9/06
CPCE04B9/00E04B9/06E04B9/065
Inventor 赵修龙万祥兵方丹李良权钱军补约依呷陆健健陈鹏程普邵兵熊平华陈登义叶辉辉王宽李鹏
Owner POWERCHINA HUADONG ENG COPORATION LTD