Detachable type emergency bridge made of composite material

Abstract

The invention provides a detachable type emergency bridge made of a composite material. The emergency bridge is of a wheel rut structure, and is formed by splicing a plurality of bridge segments, wherein each bridge segment is of the structure of a multi-cavity box beam, and is made from a resin matrix composite, particularly an epoxy resin matrix hybrid fiber reinforced composite material; each bridge segment comprises an upper faceplate, a lower faceplate and a plurality of intermediate webs, intermediate layers of the upper faceplate and the lower faceplate are made from + / -45DEG E-glass fiber, one 90DEG E-glass fiber layer is arranged at each of both the upper side and the lower side of each intermediate layer, and a 0DEG carbon fiber layer is arranged at the outer side of each 90DEG E-glass fiber layer; and the webs employ a composite material layer made from + / -45DEG E-glass fiber. According to the invention, main bodies of a bridge body are made from the composite materials, and are assembled to form a whole through metal connectors, so that the bridge body is light in weight, and convenient and quick to assemble, and can be manually assembled and disassembled quickly.

Description

technical field [0001] The invention belongs to the technical field of emergency bridge equipment, relates to a composite material emergency bridge, in particular to a detachable emergency bridge connected by hybrid fiber-reinforced resin-based composite material bridge sections and high-strength metal components. Background technique [0002] The attacks of various weapons and ammunition in wartime and natural disasters such as earthquakes and floods usually cause obstacles such as road surface craters, road collapses, and bridge collapses that cannot pass through by personnel and vehicles; Road obstacles such as rivers and ditches, but currently domestic bridge equipment is mainly large-span heavy equipment such as various mechanized steel bridges and fabricated truss bridges, and there are few light emergency bridge equipment that can overcome small-span road traffic obstacles. [0003] Traditional emergency bridge equipment is mainly made of high-strength structural stee...

AI Technical Summary

Problems solved by technology

[0003] Traditional emergency bridge equipment is mainly made of high-strength structural steel and a small amount of high-strength aluminum alloy materials. However, such metal materials are heavy and easy to corrode. Manual work is intensive and takes a long time. Usually, special equipment is required for disassembly and assembly operations, and Large workload and high cost for use and maintenance

In addition, the relevant properties of metal materials can no longer fully meet the development needs of such bridge equipment with larger span, higher strength and lighter weight. Therefore, it is necessary to accelerate the application of lightweight and high-strength composite materials in such products

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