Protection device for building bridge

Abstract

The invention relates to the field of bridge protection, and aims to provide a protection device for a building bridge. The protection device comprises a pier base buffering mechanism arranged at a pier base of a foundation pier and a pier body buffering mechanism arranged on a pier body of the foundation pier located on the water surface; the pier body buffering mechanism comprises a buffering cylinder fixed to the pier body in a sleeving mode; the buffering cylinder comprises an upper fixing ring, a lower fixing ring and force unloading rollers, wherein the upper fixing ring and the lower fixing ring are fixed to the pier body, and the force unloading rollers are arranged outside the portion, between the upper fixing ring and the lower fixing ring, of the pier body; the multiple layers of force unloading rollers are arranged from inside to outside, and a plurality of overflowing holes are evenly distributed in the force unloading rollers; and the upper ends and the lower ends of the force unloading rollers are connected with the upper fixing ring and the lower fixing ring to form rotating fit. According to the protection device, buffering of water flow to the pier body can be effectively relieved, the water erosion effect is reduced, the pier body of the foundation pier is prevented from being damaged by water erosion, and the safety of the foundation pier and the whole bridge is improved.

Description

technical field [0001] The invention relates to the field of bridge protection, in particular to a protection device for building bridges. Background technique [0002] The bridge foundation pier is the supporting foundation of the main structure of the bridge, and its stability has a decisive impact on the overall performance of the bridge such as earthquake resistance, compression resistance, and load capacity; a significant difference between the bridge foundation pier and the traditional foundation pile is that due to long-term bearing The impact of water flow will cause greater water erosion, so it is necessary to enhance its erosion resistance and water erosion resistance. At present, the traditional way is usually to improve the foundation pier pouring material to increase the strength of the foundation pier and enhance the water erosion resistance of the foundation pier, but limited by the research and development progress of the material formula, this method has not...

AI Technical Summary

Problems solved by technology

Another way is to strengthen the foundation pier through various support rods, support frames and other reinforcements. However, in this way, since the reinforcement itself also needs to install the foundation, as long as the water erosion resistance of the installation foundation cannot be solved, it will also It cannot fundamentally improve the current situation of insufficient anti-scour performance of foundation piers

In addition, in some turbulent river courses, due to the heavy spray and large impact, the effect of simply strengthening the support to improve the stability of the foundation pier is often not ideal.

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