Multi-joint unloading energy absorption combined skeleton capable of being manually assembled

Abstract

The invention discloses a multi-joint unloading energy absorption combined skeleton capable of being manually assembled. The combined skeleton includes two side skeletons and a top skeleton connectedto the upper ends of the two side skeletons; the side skeletons and the top skeleton are each composed of an external layer skeleton, an internal layer skeleton, and an intermediate layer skeleton; the external layer skeleton is channel steel, the internal layer skeleton is a hollow pipe body, the external layer skeleton is disposed in parallel with the internal layer skeleton, the external layerskeleton is flush with an end surface corresponding to the internal layer skeleton, the external layer skeleton and the internal layer skeleton are fixedly connected by the intermediate layer skeleton, and the intermediate layer skeleton is composed of a plurality of connecting pipes which are uniformly disposed between the internal and external layer skeletons at intervals; and the upper ends ofthe two side skeletons are respectively correspondingly inserted in and connected with two ends of the top skeleton. The multi-joint combined skeleton of the invention can reduce a blast load acting on a structure by large deformation generated by itself, and at the same time, short steel pipes are arranged inside the combined skeleton at intervals, and can absorb energy by self-deformation underthe blast load, and structural resistance is improved.

Description

technical field [0001] The invention belongs to the technical field of assembled anti-blast structures, in particular to a manually assembled multi-node unloading energy-absorbing combined framework. Background technique [0002] The prefabricated anti-blast structure is a common temporary shelter, which is assembled on site through prefabricated components, and is used for the protection of personnel and material equipment. In operations such as emergency rescue, it is often necessary to quickly build multiple anti-blast structures to protect personnel or equipment under the condition of limited construction machinery support conditions, which requires rapid assembly by manual labor. When the span of the structure is large or the load is increased, the cross-sectional area of ​​the component will inevitably be increased, and the weight of the component will be increased, which will bring difficulties to rapid manual assembly. In addition, the on-site assembly structural co...

AI Technical Summary

Problems solved by technology

When the span of the structure is large or the load is increased, the cross-sectional area of ​​the component will inevitably be increased, and the weight of the component will be increased, which will bring difficulties to rapid manual assembly.

In addition, the on-site assembly structural connection measures are mainly bolted connection or welding. Although these methods are relatively strong, the construction process is slow. Due to the high requirements for the assembly precision of the bolted connection, its environmental adaptability is poor.

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