Reinforced plate type fire control joint structure for space structure

Abstract

The invention relates to a reinforced plate type fire control joint structure for a space structure. Six I-shaped section beams are fixed between an upper joint plate and a lower joint plate. A chuck I is arranged in a female clamping groove at the first layer. A cylinder reinforcement ring II or a prism reinforcement ring II is arranged between the chuck I and the lower joint plate. A pipeline is fixed to one of the I-shaped section beams, and a sprayer head is arranged in an equipment hole II and connected with the pipeline; or, at least one chuck II is arranged in female clamping grooves at all layers between the female clamping groove at the second layer and the female clamping groove at the Nth layer. If one chuck II is adjacent to another chuck II, one cylinder reinforcement ring I or prism reinforcement ring I can be arranged. If the chucks II are adjacent to the upper joint plate, one cylinder reinforcement ring II or prism reinforcement ring II can be arranged. Precasting and connecting of sub-parts are simple, detailed design can be conducted in combination with the stress conditions to improve the bending moment and shearing force transmission capacity, space is reserved for passing of pipes through a non-closed web zone, and due to use of a built-in spraying facility, the service building occasions of an aluminum alloy net shell structure are widened.

Description

technical field [0001] The invention relates to the fields of civil engineering and building fire protection, in particular to a reinforced plate-type fire control node structure for space structures used for node structures in space structures. Background technique [0002] Aluminum alloy materials have the advantages of high strength-to-weight ratio, easy processing, corrosion resistance, and good appearance and color, but there are also shortcomings such as rapid material performance degradation at high temperatures and large thermal expansion coefficients, which restrict the use of reticulated shell structures made of this material in space structure buildings. It is used in a wider range, the surface is resistant to corrosion, and the characteristics of good color are not suitable for large-scale spraying of fire-resistant coatings for fire protection. Currently, it is only used in construction sites with relatively small fire loads. [0003] As a kind of space structur...

AI Technical Summary

Problems solved by technology

The centers of the above four patents are equipped with a columnar structure that contacts the opposite surfaces of the upper and lower node plates, resulting in the closure of the node web domain, making it impossible to use the gap between the I-shaped cross-section beams to pass through the pipeline

[0011] Summarizing the above existing technologies, it can be found that: 1. The proposed method of enhancing the moment and shear force transmission capacity of plate joints involves the increase in the number of bolts used, the use of welding connection methods, and more complex extrusion preparations and joints to varying degrees. The closure of the web domain is likely to cause inconvenience in construction and increase in cost; 2. Ignoring the difference in the force of nodes at different positions in the reticulated shell structure, all express the same degree of strengthening ideas, and do not analyze the force based on force analysis. 3. In the design and construction of the slab joint structure, no location and installation facilities are reserved in the joint for fire control and structural components, lacking structural stress and building fire protection. The integrated design concept fails to expand the service building site of the aluminum alloy reticulated shell structure

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