How to pre embed the reinforcement to distribute the reinforcement horizontally?

If the reinforcement is embedded, it is necessary to distribute the reinforcement horizontally, and the reinforcement is embedded in advance.

It should be needed, otherwise the ground you splash out is uneven, high and low, if there is a water outlet, you are not easy to accumulate water if it is uneven?

How to embed the piano, it must be as horizontal as Shirley. Everything. If you don't have one, buy one. That's definitely not going to work, it's very poor in terms of quality.

Actually, I think it's better for me to have a horizontal distribution.

If you want to buy horizontal distribution reinforcement, this depends on your overall structure, and a product of the whole to decide whether you want to distribute the reinforcement.

The pre-embedding of steel bars is to be buried according to the requirements of the building construction drawings, and cannot be embedded with the leader, otherwise the design requirements will be met.

What do you want to level not only affects this? Depending on his level, not only the words chosen, you can see your instructions to know.

The concrete staircase must be supported before pouring, but if the steel bar is reserved and the concrete is poured later, the formwork must be installed when it is poured to prevent deformation.

We can bury the current housing prices, and we still don't want to mess around, if you can't tell the difference, this is also okay, you can choose according to your needs.

The embedded steel bar is mainly connected with the ground concrete steel structure to play a firm role.

Keep this dress, if you distribute it horizontally on the floor every year, you should always be able to buy it if it is clean.

Then how do you pre-embed whether the level is not tight, this you should check some structures about steel bars.

This is a foundation service, and the general requirement must be to pay attention to the use of cement.

How to pre-embed the commission, whether to distribute the ribs horizontally according to the function is different. Carry out different distribution ribs.

How to pre-bury today Do you want to divide horizontally Not only this, there are certain regulations.

Of course, the reinforcement of the plate is a Kanban diagram, there is a one-way plate that is full of lower ribs, and the upper reinforcement is covered at the bearing, and some two-way plates are double-layer two-way full arrangement, specifically according to the construction of the drawings, the distribution of ribs is generally not seen in situ, and some of them are explained in the instructions below the drawings to explain what distribution ribs are used, and some are elaborated in the general description of the drawings.

Yours is my driving force

The horizontal reinforcement of the shear wall is the horizontal reinforcement you are talking about (the strong scientific basis).

Distributed reinforcement - generally refers to the distribution of negative reinforcement J of the floor support, or the distribution of reinforcement of one-way slab, and also refers to the horizontal reinforcement of the shear wall (only to meet the structural requirements), and all the distributed reinforcement is to meet the needs of the structure (no mechanical calculation is required).

Tell you an informal, but very easy to use method, the effect is that 1 is the structure, 1 is the structure.

Horizontal reinforcement is on the shear wall, parallel to the ground.

The distribution reinforcement is on the plate, the drawing is not drawn, mainly the connecting reinforcement on the negative moment bar of the plate.

Distributed ribs include horizontal ribs and vertical ribs.

Horizontal ribs are horizontally distributed ribs.

Pull the knot to improve the stability of the wall.

[Structural Engineer].

Because the distribution reinforcement is a structural reinforcement, it is not the result of calculation, so the distribution reinforcement of a project is often the same or only a few simple. Drawing in the diagram will make the drawing look messy, and you often can't find other confidence that is important.

Therefore, the practice of distributing reinforcement is generally mentioned in the structural design description.

If in doubt, just ask!

The distribution ribs of the negative bending ribs can not be drawn. Generally, the construction is according to the structure.

When embedding steel bars, we often see that the construction team likes to use round steel bars instead of rebar when embedding steel bars. They do this not on a whim, but on a scientific basis, based on the strength, properties and properties of the steel.

1. Round steel. According to the process, it can be divided into three types: hot forging and cold drawing, this kind of steel bar has cold bending, that is, better tensile property, and is easy to process, but if compared with other steels, the strength is lower.

Second, rebar.

The surface is with longitudinal ribs and transverse ribs, and the transverse ribs are spiral-shaped, herringbone-shaped, crescent-shaped 3 kinds, usually with two longitudinal ribs and transverse ribs evenly distributed along the length direction, which belongs to small section steel steel, which is the most commonly used type of steel bar for rural self-built houses, and rebar also has the advantage that it has a larger cement contact surface and good adhesion. Therefore, it is an all-rounder in the construction industry, very popular, mainly used for the skeleton of reinforced concrete building components.

So why use round bars instead of rebar for embedded reinforcement?

First of all, it should be noted that round steel and steel bars are completely different materials and cannot be replaced at will, as for why the embedded steel bars should be used round bars, in fact, this is related to their properties!

We said that the corrosion resistance of round steel is very good, when we are in construction, because of the long construction period, the time reserved for the concrete embedded steel reinforcement components is relatively long, and it is necessary to expose the wind and sun for a long time, and it is most appropriate to use round steel at this time.

In general, the ruler is long and short, and the different properties of the network reinforcement also create their own applications in the construction process, only in this way, the poured building is more stable and reliable.

During the construction of the construction project, workers will pre-bury a section of steel bar during the concrete pouring process, and continue to process it in the subsequent construction process. Some people have found that the steel bars embedded in the concrete are generally made of round steel, instead of the common rebar on the construction site, why is this?

Actually, this is related to the properties of the round bar, at the construction siteRound steel is divided into three types: hot-rolled, forged and cold-drawn, and is generally used for steel bars, mechanical parts, bolts, etc. Due to the low carbon content and high toughness of this type of steel, it can be suitable for machining with bending angles of more than 90 degrees. After the steel bar is embedded, in the follow-up construction process, it often has to go through different degrees of deformation and bending, and the plasticity of the round steel is strong, which is convenient to accept various welding and forging.

On the other hand, rebar has a high carbon content, weak plasticity, and is relatively brittle after bending, which is prone to cracks. Therefore, when embedding steel bars, round steel bars are generally selected. instead of rebar.

For rebar, the biggest feature is the ribs on the steel pipe, which can produce greater adhesion to the concrete, which is also the reason why the rebar is stronger and more stressed.

Reinforcement is used in concrete components and is configured according to the force requirements of the components. Among them, the first-class steel is a wire rod with a diameter of no more than 10, which is a smooth round steel bar, and the rest is a threaded steel bar, which is usually 9m 12m long.

Round steel belongs to structural steel and belongs to steel structure components.

Some components in the building need to use round steel, that is, components that bear dynamic loads such as hooks, ladders, guardrails and other building components, and then lightning protection and grounding components.

The use of round bars for components bearing dynamic loads is mainly to consider the ductility and hysteresis curves of the components.

The use of round steel for building components such as ladders and guardrails is to consider the smoothness of the appearance of the components, which is not easy to scratch and easy to clean the surface. The grounding member is to consider the conductivity of the steel.

As for the embedded parts, the small embedded parts are usually anchored with small-diameter steel bars, and the anchor steel bars are welded with fillet welds and steel plates, and the first-class steel bars are used to ensure the welding quality.

There are two common methods for anchoring large embedded parts, one is round steel anchorage, and the other is steel slat anchorage.

When using round steel anchoring, the round steel should be connected with the anchor plate by plug welding, and the diameter of the round steel should match the thickness of the anchor plate, that is, the thickness of the anchor plate should not be less than the multiple of the diameter of the round bar, and the thickness of the steel plate is usually more than 12mm.

Therefore, the use of round steel instead of rebar for embedded steel is mainly because of the strength and material properties, and the structure of round steel is more suitable for appearing as embedded steel bar.

To put it simply, round steel is tougher than rebar, that is, rebar is more brittle than round steel.

The cold bending performance of round steel is good, and it can be used as a hook of 180 degrees, and the rebar can only be used as a straight hook of 90 degrees.

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Now the round steel is usually HPB300 steel bar, commonly known as light round steel bar, first-class steel. In ordinary buildings, it is mainly suitable for small diameter distribution ribs, structural ribs, stirrups, etc., and is more suitable for hooks, rings and other connectors that may bear power;

1. Bright round steel bar.

1. Bright round steel bar.

There are three specifications of the light round steel bar model commonly used on the construction site, which is mainly used for stirrups, distribution bars, structural bars, and tie bars of masonry walls and concrete structure wall columns.

In addition, the round steel used for pre-embedding is mainly used for the cantilever of the floor platform, the outer frame tie and the roof elevator machine room hook. The diameter of the steel bar is generally more than 16, according to the design and calculation requirements.

Second, rebar.

Second, rebar.

It is divided into HRB335, HRB400, HRB500, and HRBF335, HRBF400, and HRBF500

Rebar is suitable for longitudinal stress ribs of load-bearing components, but not for hooks, lifting rings and other connectors that may bear power.

There are ...... types of threaded rebar commonly used on general construction sitesand other specifications. It is mainly used for beams, columns and slabs, and is used as the main reinforcement.

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The horizontal distribution reinforcement of the wall refers to the pouring or prefabrication of the reinforced concrete shear wall in the reinforced concrete frame structure, rising plate structure and beamless floor system of the shear wall in order to increase the stiffness, strength and collapse resistance of the structure.

In the shear wall, the wall is reinforced with vertical reinforcement and horizontal reinforcement, and the brush reinforcement is generally called the stressed reinforcement or vertical reinforcement, and the horizontal reinforcement is generally called the horizontal reinforcement or distribution reinforcement and the horizontal distribution reinforcement.

It is divided into plane shear wall and cylinder shear wall.

Plane shear walls are used in reinforced concrete frame structures, rising plate structures, and beamless floor systems. In order to increase the stiffness, strength and collapse resistance of the structure, reinforced concrete shear walls can be cast in situ or prefabricated in some parts. The cast-in-situ shear wall is poured at the same time with the surrounding beams and columns, and the integrity is good.

Cylinder shear wall is used in high-rise buildings, high-rise structures and suspension structures, surrounded by the partition wall of elevator room, stairwell, equipment and auxiliary room, the cylinder wall is cast-in-place reinforced concrete wall, and its stiffness and strength are higher than the plane shear wall and can bear large horizontal load.

In the shear wall, the wall is reinforced with vertical reinforcement and horizontal reinforcement, the vertical reinforcement is generally called the stressed reinforcement or vertical reinforcement, and the horizontal reinforcement is generally called the horizontal reinforcement or distribution reinforcement, and the horizontal distribution reinforcement.

The horizontal reinforcement of the shear wall is the horizontal reinforcement you are talking about (the strong scientific basis).

Distributed reinforcement - generally refers to the distribution of negative reinforcement J of the floor support, or the distribution of reinforcement of one-way slab, and also refers to the horizontal reinforcement of the shear wall (only to meet the structural requirements), and all the distributed reinforcement is to meet the needs of the structure (no mechanical calculation is required).

Distributed ribs include horizontal ribs and vertical ribs.

Horizontal ribs are horizontally distributed ribs.

Pull the knot to improve the stability of the wall.

The horizontal distribution of shear wall reinforcement is the same as that of horizontal reinforcement, and the horizontal distribution reinforcement of pool wall and basement wall is different from that of horizontal reinforcement.

Because it is not necessary, the concrete in reinforced concrete is subjected to pressure, and the reinforcement is to increase the shear force (maybe it is not accurate, probably this means) The rebar can increase the friction, but it is not necessary in the reinforced concrete structure, and the magic friction force of the rebar does not work. I also finished the first construction and Zhu'an, and I realized it when I was studying rock and soil.

From the perspective of steel properties, the yield strength of round steel is greater than that of rebar, and the main stress characteristics of embedded parts have a great relationship with the yield strength of steel bars!

Because the friction of round steel is small, the rebar has better friction, and the quality of the things made is better.

I think it may be because round steel is more suitable for pre-embedding than rebar, so round steel will be used.

Because the round steel bar is a little harder than the rebar under the same conditions, it will not break quickly.

Because the steel bars that need to be used in different situations are different, the round bars are harder.

Because in such a project, it is safer to use round steel than rebar.

Because it is relatively simpler to operate, it is generally chosen this way.

It may be that the bearing capacity of the rebar is not particularly good, so it cannot be used.

Because the rebar is unstable, and there is space in the middle of the thread, it is a waste of material.

I pinched my fingers and calculated, the price of rebar is relatively expensive.

I think it may be because some of the ways of using round steel are better than the Rowan compendium.

I think the main reason is that the corrosion resistance of actor steel is better, while the corrosion resistance of rebar is poor.