Bolt-connection-free assembled bridge guardrail

Abstract

The invention discloses a bolt-connection-free assembled bridge guardrail. The bolt-connection-free assembled bridge guardrail comprises fixed bases and hollow pipe stand columns which are sequentially arranged at intervals, and transversely-arranged connecting rods are arranged between the hollow pipe stand columns; a connecting pipe extending to the interior of the corresponding hollow pipe stand column is vertically arranged on each fixed base, and through holes are formed in the lower portions of the two sides of each hollow pipe stand column; guide holes corresponding to the through holes and limiting rods arranged in the guide holes are arranged on the side faces of the connecting pipes, and the outer portions of the limiting rods are sleeved with springs; and downward slope surfaces are arranged at the tail ends of the limiting rods. Through the manner, by means of the bolt-connection-free assembled bridge guardrail, the slope surfaces are utilized for pushing the limiting rods to the interiors of the connecting pipes, and after the hollow pipe stand columns descend to the bottoms, the through holes are communicated with the guide holes to enable the limiting rods to be pulled into the through holes under the effect of the springs; displacement of the hollow pipe stand columns is limited, and the bridge guardrail is rapid in construction, firm in structure, attractive in appearance and convenient to maintain.

Description

technical field [0001] The invention relates to the field of bridge engineering, in particular to a bolt-free assembled bridge guardrail. Background technique [0002] There are usually guardrails on both sides of the bridge for safety protection. In order to improve construction efficiency, the guardrails are mostly standard parts processed according to the drawings, which are directly transported to the bridge for assembly and installation, and are connected by bolts or welded to ensure a firm structure. [0003] Most of the guardrails on bridges are welded. After welding, they need to be polished and painted. The construction speed is slow, the cost is high, and it is difficult to maintain and replace. Cutting is required when replacing, which increases the maintenance cost. In order to reduce the difficulty of construction, some guardrails are connected by bolts, but the large number of bolts reduces the installation efficiency, and the bolts and nuts are all exposed, w...

AI Technical Summary

Problems solved by technology

[0003] Most of the guardrails on the bridge are of welded structure. After welding, they need to be polished and painted. The construction speed is slow, the cost is high, and it is difficult to maintain and replace. Cutting is required when replacing, which increases the cost of maintenance.

In order to reduce the difficulty of construction, some guardrails are connected by bolts, but the large number of bolts reduces the installation efficiency, and the bolts and nuts are all exposed, which affects the aesthetics of the guardrail. The bolts are easy to rust and difficult to maintain

Images