Beam-string-structured double-curved arched roof board beam structure

Abstract

The invention discloses a beam-string-structured double-curved arched roof board beam structure. A concrete double-curved arch plate is used as an upper chord of a compression area of an arched beam string structure, a broken-line-shaped steel wire dragline of the arched beam string structure is used as a lower chord of the compression area of the roof boarding double-curved arch plate, the arched beam string structure and the roof board double-curved arch plate are combined for usage, have complementary advantages and work together in a cooperative mode. The arched beam string structure is hoisted to a roof of a factory building with a single story, pressure type steal plate micro-bending arch waves are paved between arch ribs, the concrete arch plate is poured on site, and a construction technology of breaking up a whole into parts fully embodies the advantages of industrialized prefabrication assembly. The novel roof board beam structure has the advantages of high bearing capacity, high span capacity, good structure stability, unification of the plate and the beam structure, good waterproof property, fast construction, low cost and the like, and is used for super-large span factory building roof board beam structures of 40-90 meters.

Description

technical field [0001] The invention belongs to the field of civil engineering, and relates to a large-span composite roof girder, in particular to a chord type hyperbolic arched roof girder structure. Background technique [0002] With the development of society, large-span houses such as hangars, warehouses, gymnasiums, and exhibition halls with larger and larger indoor spaces are required. With the development of industrial production, large-span industrial plants are required to meet the huge production space, place production equipment, and flexibly arrange production processes. [0003] The roof structure of large-span factory buildings usually adopts structural forms such as portal rigid frame light steel structure and prestressed concrete double T-slab. Among them, the portal frame light steel structure has the advantages of light weight, high degree of industrialization and large spanning capacity, and is generally used for factory building structures with a span o...

AI Technical Summary

Problems solved by technology

Among them, the light steel structure of the portal frame has the advantages of light weight, high degree of industrialization and large spanning capacity, and is generally used for plant structures with a span of 24 to 40 meters. However, the light steel structure of the portal frame is anti-corrosion, fireproof and The heat insulation performance is poor, and the on-site high-altitude welding workload of the light steel structure of the portal frame is large

Prestressed concrete double T slab is a new type of roof component with beam and slab integrated. It has the advantages of low cost, good heat preservation, moisture resistance, corrosion resistance, short construction period, and long service life. It is generally used for workshops with a span of 15 to 30 meters. However, the prestressed concrete double T slab has the disadvantages of self-heaviness, low stiffness, and low bearing capacity.

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