What is the difference between the bridge abutment, the abutment and the abutment

The bridge pier abutment is mainly composed of three parts: pier abutment, pier body and foundation.

Pier abutment is the bearing and force transmission member part of the top end of the pier abutment of the beam bridge, it supports the superstructure by the bearing, bears the great vertical support reaction force, and the concentrated force that the bearing comes from is dispersed to the pier. The pier body is the structural body of the bridge pier abutment. Pier body refers to pier cap (or arch) below, the structural part above the top surface of the foundation to do the history lead, it is a component that bears the joint action of pressure and bending.

Foundation is the lowest component part of bridge pier abutment directly in contact with foundation, and its function is to ensure that bridge pier abutment is safely buried in the soil layer, and all the effects of the bridge are transmitted to the foundation.

The pier is the foundation part of the rotten finger house or column. At the beginning of the Qing Dynasty, pier barracks were set up at the main points of the provincial borders, and there were police officers and defenders holding cigarettes. If there is Kou Zhi, he will hang up and fire a cannon to report the news.

Nowadays, many places still use XX as the place name. For example, near Shenyang, there are: Hutai, Mentai, Hushitai, Santaizi, etc., and Yingkou area:

Tianzhuang Tai and so on are all evolved from the early Qing Dynasty Dun Chun Haotai system.

The beacon pier is an important part of the ancient Great Wall defense engineering system. Along the Great Wall and near the pass, around the castle, they were built as needed. Some were built in the high mountains, some were built on the higher parts of the flatland, some were built on the main traffic routes, and some were built on the walls of the Great Wall.

First, the abutments are located at both ends of the bridge, supporting the superstructure of the bridge and connecting with the embankment; The pier is the intermediate supporting structure in the bridge with two or more holes, except for the abutment that connects the two ends with the embankment. Second, the abutment is generally a stone or plain concrete structure, and the light abutment is a reinforced concrete structure; The materials of the piers can be wood, stone, concrete, reinforced concrete, steel, etc.

The abutment is composed of a cap, a body and a foundation. The common height of the abutment does not exceed 10 meters, and a few are as high as about 20 meters. Generally, the height of the abutment is determined by the height of the subgrade filling at the head of the bridge.

Under the premise that the full length of the bridge meets the requirements of flood drainage or traffic under the bridge, a high abutment and a high embankment can be built at the bridgehead, and the approach bridge can also be used to replace the high embankment to extend the length of the bridge.

The pier is mainly composed of a top cap and a pier body. The abutment is mainly composed of a top hat and a platform body. The function of the top cap is to transmit the large and concentrated force from the bridge span support to the pier body and the platform body in a dispersed and symmetrical manner.

Therefore, the top hat should be built with high-strength materials, generally not less than 200 grade reinforced concrete buildings, and the thickness is not less than 40 cm.

Functional role. In addition to transferring the load of the bridge superstructure to the foundation, the abutment transfers the load of the bridge superstructure. It also has the effect of resisting the earth-filling pressure behind the platform, stabilizing the bridgehead roadbed, and making the bridgehead line and the bridge line connected reliably and stably; The pier not only has sufficient strength, rigidity and stability, but also puts forward certain requirements for the bearing capacity, settlement and friction between the foundation and the foundation.

<> difference is in the construction. The abutments are generally made of stone or plain concrete, while the light abutments are made of reinforced concrete. Piers:

In the bridge with two holes and more than two holes, except for the abutment that carries the trouble at both ends and connects with the embankment, the rest of the intermediate support structure is called the bridge defense pin cover pier. Bridge piers are divided into solid piers, column piers, and row frame piers. According to the plane shape, it can be divided into rectangular pier, tip pier, circular pier, etc.

The materials of the construction piers can be wood, stone, concrete, reinforced concrete, steel, etc. Piers: Definitions:

The intermediate supporting structure of a multi-span bridge is called a pier. Function: It plays a fixed role and reduces the pressure on the bridge at the same time.