1, the column not only plays a supporting role, but also plays a role as a door frame;

2. The pier is the main body of the middle supporting structure of the multi-span bridge;

3. Pier is the lower load-bearing object used to bear the superstructure in civil engineering.

Second, the carrying capacity is different.

1. Although the column has a certain stiffness, it mainly bears the load in the vertical direction.

2. Besides bearing gravity, the pier shaft should also consider lateral pressure and impact force.

3. The pier mainly bears vertical load.

Third, the production materials are different.

1. The main materials of the pier are wood, stone, concrete, reinforced concrete and steel;

2. The piers generally use raw materials such as cement, concrete and fine aggregate. Strengthening the control of raw materials can ensure the appearance quality of piers to a certain extent.

Fourth, the shapes are different.

1. In order to facilitate the passage of water and floating objects, the plane shape of the pier can be made into a round head or a pointed head.

2. The cross sections of piers are mostly circular, and there are also anisotropic piers such as elliptical, square, curved and parabolic.

Extended data:

Bridge pier detection technology

According to the actual damage technical phenomenon of pier and abutment building structure in bridge engineering project, formulate and implement the concrete scheme of concrete construction crack phenomenon and material type investigation and detection technical activities of bridge pier and abutment building structure;

At the same time, it is necessary to systematically collect and sort out the damage technology and related technical data, design drawings and other data of the top position of the pile foundation of the pier column building structure of bridge engineering, among which the main operations in the technical data are as follows.

(1) elevation data of the whole bridge and related control system parameters;

(2) Observe and describe the concrete cracks in the building structure according to the concrete crack technology, and dynamically observe the concrete cracks in the building structure. The main observation contents are the overall distribution of cracks, the crack width value of cracks and the actual connectivity.

(3) For the steel in the longitudinal structure of the pier, it is necessary to conduct regular and irregular sampling inspection to see whether the actual use quantity is in line with the plan, whether the thickness of the protective layer meets the design parameters, and the compactness of the concrete building application materials in the structural columns of the pier.

References:

Baidu encyclopedia-pillar

References:

Baidu Encyclopedia-Wharf Column

References:

Baidu encyclopedia-shield god