How to distinguish between the distribution of reinforcement and the stress reinforcement

First of all, the stress ribs are elaborated.

Stress reinforcement, also called main reinforcement, refers to the steel bar that is mainly used to bear the tensile stress or compressive stress caused by the load on the basic components such as bending, compression and tension in the concrete structure, and its function is to make the bearing capacity of the component meet the structural functional requirements. Those that bear tensile stress are usually called longitudinal tensile steel bars and tensile steel bars, and those that bear compressive stress are usually called longitudinal compression bars and compression bars, collectively referred to as stressed bars.

Let's talk about distribution ribs.

Most of the so-called distributed ribs appear on the floor slab, and the distributed ribs are formed on the stressed ribs.

It plays the role of fixing the position of the stressed steel bar, and distributes the load on the plate to the stressed steel bar, and can also prevent shrinkage and temperature changes due to concrete.

and other reasons, cracks are generated in the direction perpendicular to the stressed reinforcement.

In shear walls, the longitudinal and transverse bars of the wall outside the wall beams and columns are also called distributed bars.

The distribution ribs appear in the slab and are arranged on the inside of the stressed reinforcement, perpendicular to the stressed reinforcement. The function is to fix the position of the stressed reinforcement and distribute the load on the slab to the stressed reinforcement, and at the same time, it can also prevent cracks perpendicular to the direction of the stressed reinforcement due to the shrinkage of the concrete and temperature changes.

First, the stress tendon andDistribution ribsThe difference

1. Almost all the distribution ribs appear on the floor, and the distribution ribs reach 90 degrees on the stressed ribs, which plays the role of fixing the position of the stressed ribs, so that the load of the plate is dispersed on the stressed ribs, and at the same time, it can prevent cracks in the direction perpendicular to the stressed ribs due to the shrinkage of concrete and temperature changes. in the shear wall.

, except for wall beams and pilasters.

outside the longitudinal bars of the wall.

Transverse ribs are also known as distributed ribs.

2. Stress reinforcement, also known as main reinforcement, is a steel bar arranged on basic components such as bending, compression, and tensile, which is mainly used to bear tensile stress or compressive stress caused by load, and the bearing capacity of the component plays a role in meeting the functional requirements of the structure.

2. Methods of distinction

1. The reinforcement configured below the positive moment reinforcement is the stressed reinforcement, and the reinforcement vertically distributed above is the distributed reinforcement.

2. The steel bar on the upper part of the plate is placed on the top of the * is the stress bar, and the negative bending moment is the distribution bar.

3. On the contrary, the negative moment bar (such as the catenary plate) is the distribution bar below, and the steel bar above is the stress bar.

1. Stressed reinforcement: steel bar determined by calculation. Stress bars include tensile reinforcement and compression reinforcement.

2. Distributed reinforcement: the steel bar arranged in the vertical direction of the stressed rib in the floor slab is mainly used to fix the position of the stressed rib and prevent shrinkage cracks;

3. Structural reinforcement: steel reinforcement set according to structural requirements. Generally, it is not determined by force, but by construction and experience. It mainly plays the role of knotting, maintenance, reinforcement and so on. For example, the tie bars for structural columns and walls.

Stress ribs refer to the part of the steel bars arranged in the lower part of the beam or slab that bear the tensile force and the bending ribs and hanging bars that resist shear and balance.

The distributed reinforcement refers to the part that appears in the slab, is arranged in the upper part of the stressed steel bar, and is perpendicular to the stressed steel bar.

Difference Between Distributed Rib and Stressed Rib:

The stressed rib is the plate support bar, wherein, one end of the potato slip is anchored into the support (i.e., beam or concrete wall), and the other end extends into the surface layer bar of a certain length in the plate is called unilateral stress bar; Riding on the bearing, the two ends extend into the plate of a certain length of surface plate reinforcement called bilateral plate negative reinforcement. The stress bar is used to fix the negative reinforcement of the plate and the stress reinforcement of the cross plate, so that the spacing of the reinforcement is kept the same. Hand Lee.

The distributed reinforcement refers to the reinforcement that is perpendicular to the negative reinforcement of the plate and the stressed reinforcement of the cross-plate. Because the bottom gluten and gluten in the stressed ribs are arranged in both directions (that is, they are arranged perpendicular to each other), the reinforcements can be guaranteed to be parallel to each other, so there is no need to distribute the reinforcements.

In the construction process, a variety of materials are often used, and many of them have similar names, and if you don't know them well, it is easy to get confused. For example, what is the difference between stress ribs and distributed ribs? How can we tell the difference?

First, the difference between the stressed rib and the distributed rib.

The stressed reinforcement refers to the steel bar placed in the uppermost part, that is, the main reinforcement, which is mainly used in the concrete mechanism and plays the role of resisting the negative bending moment, while the distributed reinforcement is in the slab, located on the inner side of the stressed reinforcement, and the stressed reinforcement is vertical; Most of the distribution reinforcement is on the floor slab, so that the bearing capacity of the component meets the structural function requirements, on the bearing, the two ends extend into the slab called the bilateral plate negative reinforcement, on the shear wall, so that the spacing of its reinforcement is kept the same. It can prevent cracks caused by thermal expansion and contraction of concrete.

Second, how to distinguish the stress rib of the plate from the distribution rib.

1. Distinguish the species from the opening and depth span of the plate.

If the plate is a single plate, only Peizen should be parallel, the short span steel bar is the stress bar, and the steel bar parallel to the long span is the distribution bar. If the plate is a two-way plate, whether it is a long span or a short span direction, it is a stress bar.

2. Distinguish by the diameter of the steel bar.

If the diameter of the steel bar is relatively large, it is the stress bar, and if the diameter is small, it is the distribution bar.

3. Distinguish by arrangement.

The positive moment tendons of the stressed ribs are arranged underneath, while the distributed bars are vertically distributed. However, it should be noted that in the case of the cantilever plate, the reinforcement in the lower position is the distribution bar, and the upper position is the stress bar.

Conclusion of the article: The difference between the stressed rib and the distributed rib and the relevant knowledge of distinguishing the stiff and distributed rib of the plate will be introduced here, I hope it will be helpful to you. I believe that after reading the above, you also have a better understanding of the stressed tendons and distributed tendons.

<>The stressed tendons belong to the main tendons. It is mainly used in concrete mechanisms and plays a role in resisting negative bending moments. The agitated distribution ribs are in the slab, located on the inner side of the stressed reinforcement, and are perpendicular to the stressed reinforcement.

In the two-way plate, whether it is a long span or a short span, it is a stress rib.