What are settlement joints and expansion joints? The difference between a settlement joint and an ex

Settlement joint: In order to prevent the destruction of the house caused by the uneven settlement of all parts of the building, the vertical joint is called the settlement joint. Building expansion joint, also known as expansion joint, refers to a structural joint vertically set up along the appropriate part of the length direction of the house in order to prevent cracks or damage to the structure due to climate and temperature changes (heat expansion, cold contraction). The expansion joint is to divide the building components above the foundation, such as walls, floors, roofs (except wooden roofs), into two independent parts, so that the building can be expanded horizontally along the long direction.

There is it within 100°, you go search and take a look, it's very detailed! To put it simply, expansion joints are used to prevent cracks and other settlements due to temperature stress, and cracks are formed to prevent uneven settlement of the foundation.

The difference between settlement joints and expansion joints is as follows:

1. The position of the seam is different.

Expansion joints are only located on walls, floors, and roofs, and there are no joints in the foundation; The settlement joints are separated from the roof to the foundation, and all component parts need to be separated.

2. The substitution effect is different.

Generally, the settlement joint can also play the role of expansion joint, and the expansion joint cannot replace the settlement joint.

3. The width is different.

The width of the expansion joint is generally 20-30mm, and the width of the settlement joint should be determined according to the number of floors of the house, and it should not be less than 120mm when there are more than five floors.

4. The role is different.

Expansion joints are set to prevent cracks in the house due to climate change, while settlement joints are set to prevent damage to the house caused by uneven settlement of various parts of the building.

Expansion joints and settlement joints

1. Expansion joints:

Expansion joints are deformation joints set up when the building is long to prevent cracks in the structural parts due to large thermal expansion and cold contraction.

In the case of setting up expansion joints, it is generally reserved in the vertical direction at corresponding distances or structural changes along the length of the building, and all the building components on the foundation are disconnected, and they are divided into independent parts that can be automatically expanded and contracted in the horizontal direction. The base part is less affected by temperature changes and usually does not need to be disconnected.

2. Settlement joint:

The settlement joint is a deformation joint set up to avoid the uneven settlement of the building and the damage caused by the different bearing capacity of the foundation or the large difference of the local load.

In the process of setting up settlement joints, it is necessary to disconnect all parts of the building, such as the foundation, wall, floor and roof, in the vertical direction, so that each part can form an independent stiffness unit that can automatically settle itself.

Summary. Hello dear, first of all, the formation process is different: expansion joints:

Expansion joints are formed by reserving gaps at certain intervals along the length of the building. Settlement joint: Settlement joints are formed by setting gaps in appropriate locations such as complex plane or body shape turns, height changes, and loads.

Deformation joints: Deformation joints are often formed by the deformation of buildings under the action of external factors, resulting in cracking and even destruction. Construction joints:

Construction joints are formed between the concrete that has been poured first and then poured out. The second is the reason is different: expansion joints:

Expansion joints are designed to prevent cracks or damage to the structure of building components due to climate and temperature changes. Settlement joints: Settlement joints are to prevent the destruction of the house caused by the uneven settlement of all parts of the building due to the foundation.

Deformation joints: Deformation joints are set up to meet the function of building structure. Construction joints:

Construction joints are due to the need to pour in sections due to design requirements or construction during the concrete pouring process.

The difference between expansion joints, settlement joints, deformation joints, and construction joints.

Hello dear, first of all, the formation process is different: expansion joints: expansion joints are formed by reserving gaps at certain distances along the length of the building.

Settlement joint: Settlement joints are formed by setting gaps in appropriate locations such as complex plane or body shape turns, height changes, and loads. Deformation seams:

Deformation joints are often formed by the deformation of buildings under the action of external factors, resulting in cracking and even destruction. Construction joints: Construction joints are formed between the concrete poured first and later.

The second is that the reasons are different: expansion joints: expansion joints are to prevent building components from cracking or destroying the structure due to climate and temperature changes.

Settlement joints: Settlement joints are to prevent the destruction of the house caused by the uneven settlement of all parts of the building due to the foundation. Deformation seams:

The deformation joint is set to meet the function of building structure. Construction joints: Construction joints are because in the process of concrete pouring, due to design requirements or construction needs to be poured in sections.

Third, the location is different. Expansion joints: The location of expansion joints is usually at the roof, wall, floor and other above-ground components.

Settlement joint: The location of the settlement joint is usually at the culvert body, hole body and end wall. Deformation seams:

Deformation joints are generally set at the vertical point of the wall, floor layer, roof and other components of the house. Construction joints: Construction joints are generally set between the concrete poured first and later.

1. Expansion joints.

Expansion joint: When the building is long, it is a deformation joint set to avoid cracks in the structural components due to the large thermal expansion and cold contraction of the building.

When setting expansion joints, it is usually reserved in the vertical direction at certain distances along the length of the building or when the structure changes greatly, and all the building components above the foundation are disconnected and divided into independent parts that can be freely expanded and contracted in the horizontal direction. The base part is less affected by temperature changes and generally does not need to be disconnected.

Second, the settlement joint.

Settlement joint: It is a deformation joint set up to prevent the uneven settlement of the building and the destruction of the building caused by the different bearing capacity of the foundation or the large difference in the load of each part.

When setting the settlement joint, the foundation, wall, floor and roof of the building must be disconnected in the vertical direction, so that each part can form an independent stiffness unit that can settle freely.

The difference between settlement joints and expansion joints is that they have different positions, different widths, and different functions.

1. The opening position of the settlement joint and the expansion joint is different: the expansion and contraction joint is generally set up on the wall or the ground of the building, as well as on the roof, and the foundation is not jointed. However, the settlement joints are separated from the roof to the foundation and all the components need to be separated by pure stove joints.

2. The width of the settlement joint and the expansion joint are different: the width of the expansion joint is generally between 30 and 40 mm, and the width of the settlement joint needs to be measured according to the number of floors of the house for more than five floors, and the width of the gap cannot be less than 120 mm.

3. The function of settlement joints is different from that of expansion joints: expansion joints are used to prevent cracks in the walls of the house due to weather changes, while settlement joints are used to prevent the uneven foundation of the building from being damaged throughout the house.

The appearance of cracks in the house will affect the later use, and even bring threats to the safety of the individual's home, the common ones are settlement joints and expansion joints, which are different from each other. So what is the difference between a settlement joint and an expansion joint. And how to prevent the appearance of cracks in the house, do you know?

1. What is the difference between settlement joints and expansion joints?

1. The position of the settlement joint extends from the roof to the base layer, while the expansion joint is only on the wall, ground and roof; 2. The settlement joint can replace the expansion joint, but the expansion joint can replace the settlement joint without loss; 3. The expansion joint is about 20 to 30mm, and the settlement joint is determined according to the floor, and the five-story building is not less than 120mm.

Second, how to prevent the appearance of cracks in the house.

1. When building a house, it is necessary to set the expansion joints according to the standard, which can reduce the thermal expansion and contraction of the roof and increase the size of the gap. If it is a brick-concrete building, the insulation layer needs to have expansion joints every 60m or so, and if there is no insulation layer, expansion joints need to be built every 40m.

2. In the process of building a house, try to reduce the temperature difference between the roof and the wall, and then you can design an overhead heat insulation board on the roof to enhance the overall effect at the same time, it can also prevent cracks caused by the temperature difference. In addition, the insulation materials used in the construction of the house must meet the requirements in order to avoid problems.

3. When making the insulation layer of the house, silver powder paint can be used for construction, which can not only reflect the sunlight well, but also effectively reduce the temperature of the surface of the coil. At the same time, it is also necessary to ensure that there are no problems with the quality of the construction, which can reduce the probability of cracks in the wall.

What is the difference between a settlement joint and an expansion joint. And how to prevent the appearance of cracks in the house, I will introduce it here, do you understand? Settlement joints and expansion joints are not the same, but in the process of construction, it is necessary to protect them as much as possible so as not to affect the later use.

The difference <> is that the position of the seam is different, the substitution effect is different, and the function is different. Expansion joints are only set on walls, floors, and roofs, and joints are set on the foundation, and the width is generally 20mm to 30mm, which is set to prevent cracks in the house due to climate change. The settlement joint is from the roof to the foundation, all the components need to be separated, it is to prevent all parts of the building from the uneven settlement of the foundation caused by the destruction of the house, the width should also be determined according to the number of floors of the house, more than five floors should not be less than 120mm, and the general settlement of the hidden jujube joint at the same time Shenqi can play the role of expansion joint.