What does it mean for the ring beam to extend the main wall, and what does it mean for the ring beam

Whether the crack has a certain regularity, and its location, direction and width are basically the same, that is, it occurs at the place where the ring beam is not pulled through. In order to save building materials, it is customary to set up a non-pull-through ring beam in the design, and this setting method is no problem for being used in brick-concrete structures, such as being used in aerated concrete. Because the beam is not pulled through, the joint of the end of the beam is aerated concrete, which forms concentrated stress and is the weakest link in the wall, so cracks appear.

To be sure, the ring beam plays a role in stopping and inhibiting cracks.

Preventive measures: According to the above-mentioned analysis of the causes of cracks and the characteristics of large shrinkage value of aerated concrete, the measures of setting up ring beams on the vertical and horizontal walls of buildings can prevent the occurrence of cracks in the top transverse walls, and can also inhibit cracks in other parts.

Ring beam refers to the continuous reinforced concrete beam in the upper part of the house, also called ground ring beam (DQL); In the upper part of the wall, the reinforced concrete beam next to the floor slab is called the upper ring beam.

Function: The function is to cooperate with the floor slab and structural columns to increase the overall stiffness and stability of the house, reduce the damage of the uneven settlement of the foundation to the house, and resist the impact of the first force.

1. Enhance the integrity and spatial rigidity of the house.

2. Prevent the adverse effects on the house caused by uneven settlement of the foundation or large vibration load.

3. The ring beam arranged on the top surface of the foundation and the cornice is the most effective in resisting uneven settlement.

4. When the settlement in the middle of the house is larger than that at both ends, the ring beam located at the top surface of the foundation has a greater effect; When the settlement at both ends of the house is larger than that in the middle, the ring beam at the cornice has a greater effect.

Ring beam, refers to in the design and construction process of brick-concrete structure house, in the vertical and horizontal inner and outer walls of each floor slab are provided with the horizontal closed steel excavation elastic concrete beam signal. Because the ring beam is a continuously enclosed beam, we also call the ring beam a ring beam. The function of the ring beam is to improve the spatial rigidity of the house and coordinate the balance of the whole house.

WeChat screenshot Because the ring beam can be connected with the structural column and the floor slab, it can form a bonding effect on the brick wall, so that the vertical and horizontal walls in the house always maintain the whole, which is conducive to improving the shear and tensile strength of the entire brick masonry and enhancing the overall performance of the house. For example, when there is local settlement in the house, the ring beams located at the top ends can bear the heavy expansion burden, especially in the ** area, the ring beams when building the house are particularly important for the overall stability of the house. In addition, if the foundation of our house is unstable or unexpected problems arise over time, the ring beam may compensate for these defects.

WeChat screenshot Second, is it necessary to set up annular beams on each layer? To be honest, if possible, it is best to set up a ring beam on each floor, because the rural self-built houses are basically not high, mostly in two or three floors, and they cannot be reduced much. In addition, the setting of the ring beam must be determined according to the basic conditions of the home and the local seismic fortification intensity.

Generally speaking, ring beams and structural columns must be set in seismic fortification areas of 6 degrees and above, and it is best to set ring beams on each floor. If it is less than 6 degrees and is not a large and small area, the foundation strip judgment side pieces are good, as long as the bearing capacity of each part of the building is relatively uniform, only the ring beam is fixed firmly, the ring beam and the structural column can not be arranged. WeChat screenshot Of course, with the increase in our security awareness today, even if all conditions are met, we will still add ring beams when building a house.

If you really want to reduce the number of ring beams, for example, for a three-story building, the ring beams can be set at the bottom one and one at the top, while reducing the ring beams on the second floor has little effect. Generally speaking, when setting up an annular beam, the ring beams at the bottom and top are not small. If you want to reduce the ring beams, they are also on other floors.

As long as we follow this principle, we can basically guarantee the stability of the house. Of course, such annular beams must be determined according to the height of the floor. For example, when the floor height is 4 5 meters, the ring beams must be designed for each floor, so the ring beams cannot be reduced.

Hope mine is helpful to you and have a great day!