Spatial combined arched shell structure with two layers of cylindrical surfaces

Abstract

The invention discloses a spatial combined arched shell structure with two layers of cylindrical surfaces, and aims to provide a combined arched shell structure which has high bearing capacity and is convenient to construct. The spatial combined arched shell structure consists of an upper-string cylindrical curved surface, a lower-string cylindrical curved surface and a spatial network shell connected with the upper-string cylindrical curved surface and the lower-string cylindrical curved surface, wherein the upper-string cylindrical curved surface is formed by connecting a bidirectional steel ribbed plate and concrete combined plate modules; the lower-string cylindrical curved surface is formed by connecting lower-string steel tube structural members; the spatial network shell connected with the upper-string cylindrical curved surface and the lower-string cylindrical curved surface is a four-face cone supporting system formed by connecting web rods; each bidirectional steel ribbed plate and concrete combined plate module consists of ribbed steel plates and concrete; and the ribbed steel plates are connected with the concrete through shearing connection pieces. The arched shell structure is integrated with the advantages of a steel and concrete combined structure and a spatial network shell structure, so that the arched shell structure has high bearing capacity and is easy and convenient to construct.

Description

technical field [0001] The invention relates to the field of protection engineering, and more specifically relates to a double-layer cylindrical surface combined arch shell structure. Background technique [0002] The development of precision-guided weapons poses an increasing threat to ground mobile targets such as military aircraft and missile launchers. At present, the widely used single shielding facilities mostly use the composite arch shell structure formed by corrugated arched steel plate as the lining and overlying reinforced concrete. The load carrying capacity depends only on the solid thickness of the shell. If the thickness of the overlying reinforced concrete is increased, not only do supports need to be erected during the construction period, but the excessive self-weight of the structure often leads to a relatively small payload, which also greatly exceeds the structural layer thickness required for penetration resistance and earthquake collapse resistance. ...

AI Technical Summary

Problems solved by technology

If the thickness of the overlying reinforced concrete is increased, not only the support needs to be erected during the construction period, but also the excessive self-weight of the structure often leads to a relatively small payload, which greatly exceeds the structural layer thickness required for penetration resistance and earthquake collapse resistance

The above disadvantages restrict the protective effectiveness of single shelter facilities, greatly reducing the survival and continuous combat capabilities of ground maneuvering targets

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