What is the difference between a foundation beam and a ground beam?

The two have different definitions and roles.

The foundation beam is suitable for frame structure and frame shear wall structure, and the ground beam is a continuously closed beam, which is generally on the base surface of the strip.

Then the role is different, the foundation beam is mainly used as the upper part of the building, is the foundation of the upper building, can play the role of load-bearing and bending resistance. The ground beam is mainly to adjust the uneven settlement that may occur, and better increase the stability of the foundation, which is not load-bearing.

In the old flat method 03 101, underground beams are divided into 2 types.

One is the foundation connecting beam, and the other is the ground frame beam. However, in the new flat method 11G101, we refer to the ground frame beam and the foundation connecting beam as the foundation contact beam.

Here I will tell you the difference between the underground beams of the new flat method.

In the new flat method, the foundation connection beam refers to a beam with a specific meaning, which only refers to the beam used for independent foundations, cap foundations, and strip foundations to increase the integrity of the foundation, and then bear the local load of the upper infill wall. However, in the design, if you are involved in the calculation of lateral force, for example, when the height of the first floor is relatively high, it should be calculated according to the frame beam. It should be marked as a frame beam in the drawing.

Therefore, it is said that the foundation connection beam refers to the beam that does not participate in the calculation of the resistance force, and is the beam that increases the integrity of the foundation.

As for the ground beam you mentioned, we will mark it in some drawings, but DL does not have this name in 11g, and the underground beam is either a foundation connection beam or a frame beam. If there is a DL in the figure, then we need to ask the designer whether the beam is a foundation connection beam or a frame beam.

1. The definitions are different

1) The foundation beam actually refers to the beam built on the foundation soil layer, which is generally built on the frame structure, and the frame column is generally located on the foundation beam or the intersection position of the foundation beam.

2) The ground beam, also known as the ground ring beam, is generally built in the brick-concrete structure and masonry structure, although it cannot play a load-bearing effect, but it can restrain the masonry, so as to improve the seismic function of the building.

2. The role is different

1) The foundation beam can be used as the foundation of the building in the upper area, and the load in the upper area can be conveyed to the foundation of the lower part, so as to provide good load-bearing function and bending function for the building, but it does not have the seismic function.

2) Once the ground beam is circled, it can have the characteristics of closure, and it can also be combined with the structural column to become a seismic cracking system, so as to alleviate the uneven settlement of the house, which can enhance the integrity of the house foundation and make the reaction force of the foundation more uniform.

3. The calculation method is different

1) The main function of the foundation beam is load-bearing, and it is generally necessary to know the cross-sectional area of the foundation beam and the number and specifications of the steel bars that need to be configured by calculation.

2) The main function of the ground beam is to improve the integrity of the house, avoid the uneven settlement of the house, and generally need to know the number and specifications of the steel bars required to be configured through the structural requirements.

A tie beam refers to an independent foundation, a beam set between the foundations. It can play a role in resisting uneven sedimentation. Generally, it is set by construction, not by calculation.

The foundation beam is generally used for frame structure, frame shear wall structure, the frame column falls on the foundation beam or the intersection of the foundation beam, and its main role is to serve as the foundation of the superstructure and transfer the upper load to the foundation.

The ground beam is commonly known as the foundation connecting beam, which has the characteristics of closure when circled, and forms a seismic cracking system with the structural column to slow down the negative effect of uneven settlement.

To put it simply, a tie beam is a beam that prevents settlement between independent foundations.

Foundation beams, also called ground beams, are beams in strip foundations and raft foundations (full-hall foundations).

Question 1: Does the geosphere beam belong to the foundation or the main body It is called the main structure in the logging industry! If a unit project is a single building, the unit project is divided into foundation and foundation, main structure, masonry engineering, building decoration and decoration, building roofing engineering, energy-saving engineering, etc. according to different construction content and requirements, + The following structures, masonry, waterproofing, etc. belong to the category of foundation and foundation.

The foundation you mean by the infrastructure part, and the main structure refers to the + or more structural part.

Question 2: Is the foundation of the foundation or the main body of the foundation of the foundation of the foundation of the building.

The soil under the foundation that is subjected to the pressure of the building (which may also be artificially reinforced) is considered a foundation.

It can be understood this way: the foundation is the foot of the building, and the foundation is the shoe.

Question 3: Is the foundation cap beam the main body or the foundation. The foundation cap beam part: as the name suggests, it is definitely the foundation, and the main part is the main body above the cap beam.

Question 4: Does the 2013 standard cap floor beam above belong to the main body The dividing line between the main body and the foundation is generally .

Question 5: Does the construction of the basement floor belong to the main structure or the foundation and foundation, and is the beam on the floor called the ground beam? The basement floor belongs to the foundation engineering, and the beam on the basement floor is not called the ground beam, but should be called the basement floor beam.

Question 6: Is the basement the foundation or the main body? Whether it belongs to the foundation or the main body, this is the question of the division of the division of the project.

In GB50300-2013 clear, according to the rule, not very clear, should be based on the main principle of the division of the project, and combined with the actual process of engineering to divide, this principle is conducive to the control and management of project quality. Therefore, most of the parts that are in direct contact with the soil are classified as the basic division, and the frame columns, beams, interior wall columns, and partition walls in the basement are classified as the main division.

Question 7: Does the ground beam belong to the foundation or the main body, for example, the stirrup encryption 1 3 of the underlying frame should be calculated from the top of the foundation or from the top of the ground beam? Personally, I think it should belong to the basics.

Because the foundation is the main load structure, whether it is the foundation beam that transmits the longitudinal load to the pile yard or the foundation beam that directly transmits the longitudinal load to the bearing layer, it is the main load structure.

Understanding from this point, I think that the stirrup encryption of the column should be counted from the top of the ground beam.

Question 8: On the division of the foundation division and the main structure It is generally divided at plus or minus zero, and the basic division project is below plus or minus zero: pile foundation, cushion cap, ground beam, and foundation column.

Reinforcement works, formwork works, etc. are sub-projects in sub-projects. There is it in the basic division, and it is also in the main division.

1. Underground frame beam: or foundation frame beam, its bottom surface is higher than the top surface of the foundation (or cushion cap), but the top of the beam and the car surface are lower than the positive and negative elevation of the building and the frame column is used as the support, and its code contains KL (that is, frame beam). The bottom of this type of beam is suspended in the air and is not affected by the reaction force of the foundation.

2. Foundation beam: The foundation beam should be load-bearing and placed on the foundation, which is subject to the reaction force of the foundation. The bottom elevation of the foundation beam is the same as the elevation of the foundation bottom.

The foundation beam is equipped with a reinforced concrete bottom plate, and there is a stressed steel bar according to the calculation configuration in the plate, and the foundation connecting beam does not have such a base plate. The foundation beam is generally arranged in the raft foundation or reinforced concrete strip foundation.

3. Foundation connecting beams: refers to the beams connected to independent foundations, strip foundations or pile foundation caps. This kind of beam does not bear the load (or only bears the bottom partition wall, infill wall), the beam does not bear the action of the foundation reaction, and the bottom elevation of the beam is higher than the bottom elevation of the foundation at both ends (in a similar suspended state).

1. Different definitions: the foundation beam mainly plays the role of connection, improving the plane stiffness of the water and oak sun, sometimes not considering the seismic use, and is also used as the support beam of the bottom filling wall. The ground beam, also known as the geosphere beam, has the closed feature of being trapped, and together with the structural column, it forms a first-class restriction system, which slows down the negative effect of uneven settlement.

2. Different functions: The main role of the foundation beam is to serve as the foundation of the foundation mountain chain of the superstructure, transfer the upper load to the foundation, and perform the bearing capacity and bending functions. The function of the ground beam is mainly to adjust the uneven settlement that may occur in the home, strengthen the integrity of the house foundation, make the foundation more uniform, and play the role of rolling beam and waterproof and moisture-proof.

3. Scope of application: The foundation beam is usually used for the frame structure and the frame shear wall structure, and the frame column is located at the intersection of the foundation beam or the foundation beam. Ground beams are generally used for brick-concrete and masonry structures, which have no load-bearing effect, have a restraining effect on masonry, and are conducive to earthquake resistance.

<> The main difference between the foundation beam and the ground beam is that the foundation beam obtains the cross-section and reinforcement through calculation, and the main role is the load-bearing role. The ground beam is configured with steel bars through structural requirements, and the main function is to strengthen the integrity and prevent the settlement of uneven foundation. The ground beam can make the foundation reaction force more uniform, generally used in brick-concrete, masonry structure, no load-bearing effect, has a certain restraining capacity to the masonry, is conducive to earthquake resistance.

The rest of the pants foundation beam infiltration is to transfer the upper load to the foundation.