Can the steel bars at the floor level be tied in the post pouring belt?

In this case, it is not possible, the main reason is that if this way of operation is used, it is easy to have potential safety hazards in the later stage, so this situation is not allowed, illegal operation.

Generally speaking, it's not good to get this thing later, because it will affect its fixity, so I generally don't mind it, and the quality is not good.

The steel bar of the floor should be able to be tied in the post-pouring belt, and in this way, it will make him more stable, and the effect of this operation will be better, very good.

The steel bars on the floor can be watered. The thickest is the in-band fried. The wire can be tied so that it can be strong like this. The matter of the inner lashing of the belt must be a few pieces of their firm kind.

Based on the drawing nodes of the design institute, there is no node diagram called the design drawing. In fact, many of the sections of the binding base plate are 100% seldom, and it is more convenient to do it.

Of course, you can do this, but you must pay attention to safety, otherwise it is easy to have problems.

The left side of the left side is clean and can be poured back with the inner plate tie, I think if it is the floor practice Zhang Jin, I think of course it is not possible to pour it with Rui with him, because it is easy to collapse.

This is possible, but it depends on the quality of the project, the technical requirements.

Of course, this is not allowed, so it is easy to break if you pour it later.

The steel bars on the floor floor cannot be tied in the back tape, and the steel bars must be tied before being poured.

GB50666-2011 "Code for Construction of Concrete Structures"The intersection of the upper part of the reinforcement mesh should be fully tied, and the bottom reinforcement mesh can be staggered at intervals except for the edge part. ”

In the "Code for Acceptance of Construction Quality of Concrete Structure Engineering" GB50204-2002, it is stipulated that the two-way plate cannot be tied with a jump buckle, and the one-way plate can, but the peripheral two circles must be fully tied.

Code for Construction of Concrete Structure Engineering GB50666-2011

The detailed structure of the reinforcement binding shall comply with the following provisions:

1. The binding lap joints of the steel bars should be firmly tied with iron wires in the center and at both ends of the joints;

2. The intersection points of the reinforcement mesh of each vertical plane in the reinforcement skeleton of walls, columns and beams should be firmly established; The intersection points of the upper part of the plate reinforcement mesh should all be firmly rooted, and the bottom reinforcement mesh can be staggered and fastened at intervals except for the edge part;

3. The stirrup hooks of beams and columns and the butt welding joints of welded closed stirrups should be staggered along the direction of longitudinal stressed reinforcement. On the same surface of the component, the percentage of the area of the welded joint of the welded closed stirrup should not exceed 50%;

4. The longitudinal reinforcement of the structural column of the infill wall should be tied together with the reinforcement of the frame beam;

5. The distance between the stirrups in the beam and column, the horizontal distribution of steel bars in the wall and the stirrups of the dark column, and the reinforcement in the plate from the edge of the component should be 50mm.

Dear, I'm glad to answer for you: the floor reinforcement needs to be fully tied 1The one-way plate reinforcement can be tied at intervals, but the two rows on the side should be fully tied.

The one-way plate is mainly stressed on the short side, the long side is greater than the short side is more than 3, the short side is stressed on the bottom, and the long side is on the top. 2.The two-way slab shall be firmly anchored at the intersection points of all steel bars.

When binding, it should be noted that the wire buckle adjacent to the binding point should be in a figure-eight shape to avoid the skew and deformation of the mesh. The uppermost steel bar wire should be oriented towards the inside of the slab, not out of the slab, so as to avoid easy leakage of the floor slab in the later stage, and the same is true for the one-way slab. The specification for the distance between the first starting rib and the beam edge of the floor slab is 1 2 plate bar spacing, and we generally take 50mm.

Do floor slabs, beams, and column reinforcements need to be fully tied? 3.The beams and columns must be fully buckled and tied.

The intersection points of the two rows of steel bars around the plate should be tied firmly at each point, and the intersection points of the middle part can be staggered and fastened apart, but it must be ensured that the stressed steel bars are not displaced.

Disconnection or disconnection can be specified by the design, and when the design is not specified, it is selected by the technical person in charge of the construction party.

The post-pouring belt is a concrete belt left at the corresponding position of the foundation floor, wall and beam in accordance with the requirements of the design or construction specifications in order to prevent harmful cracks that may occur due to uneven shrinkage or uneven settlement of the reinforced concrete structure in the building construction.

The post-pouring belt temporarily divides the structure into several parts, and after the internal shrinkage of the components, the concrete of the construction joint is poured after a certain period of time, and the structure is connected into a whole zone. The pouring time of the post-pouring belt should be selected when the temperature is low, and the cement or cement can be mixed with a trace amount of aluminum powder concrete, and its strength grade should be one level higher than the strength of the component, so as to prevent cracks between the new and old concrete and the formation of weak parts. The location of the post-pouring belt should also consider the different consumption factors of the template and other measures.

At the same time, the following adjustment measures can be taken:

1) Adjust the pressure difference. The load of the main building is large, and the overall foundation is used to reduce the earth pressure and reduce the additional pressure; The lower part adopts a shallow cross beam foundation to increase the earth pressure and make the settlement of the high and low layers close.

2) Adjust the time difference. The main building will be constructed first, and the settlement will be basically stable when it is basically completed, and then the podium will be constructed to make the settlement basically similar in the later stage.

3) Adjust the height difference. After settlement calculation, the elevation of the main building is set slightly higher, and the elevation of the podium is set slightly lower, and the settlement difference between the two is reserved, so that the actual elevation of the last two is consistent.

Either through setting or 100% disconnection can be done, and there are two ways to do it on the atlas

According to the regulations. However, some designs do not require it.

Hello dear, happy to answer your <>

Answer, the floor slab reinforcement needs to be fully tied, and the building floor slab distribution reinforcement needs to be fully tied. The information of the constructor stipulates that the two-way plate is fully tied, and the one-way plate is tied one by one, but the one-way plate in the structural design follows the two-way plate design, even if the one-way plate is said in size, but the structural design is also a two-way plate.

Therefore, the distribution bars of the building floor slab need to be fully tied. Precautions for rebar binding of floor slabs: (1) Clean up the debris on the formwork, and use an ink fountain to play the main reinforcement and distribution rib spacing lines on the template.

2) According to the spacing drawn, place the stressed main reinforcement first, and then put the distribution reinforcement. Embedded parts, conduits, reserved holes, etc. are installed in a timely manner. (3) When there are plate and beam in the cast-in-place slab, the plate and beam steel bar should be tied first, and then the plate steel bar should be placed.

When binding the plate reinforcement, it is generally used to tie the buckle or the figure-eight buckle, except for the intersection point of the two peripheral ribs should be all tied, the rest of the points can be staggered and tied (the intersection point of the two-way plate must be all tied). (4) If the plate is a double-layer steel bar, a steel bar stool must be added between the two layers of steel bars to ensure the position of the upper steel bar. Negative moment reinforcement should be tied at each intersection point.

For enhancementPost-pouring tapeThis area of weakness.

The post-pouring belt is set because of the large area of reinforced concrete.

After casting, there will be uneven settlement and shrinkage, resulting in harmful cracks, so construction joints are reserved.

Generally, it is necessary to wait for about 2 months before pouring.

However, there is a problem with the post-pouring belt, that is, the construction time span is large, the construction process is also more cumbersome and complex, and the construction quality can not be guaranteed.

Reasons for reinforcement of post-pouring belt reinforcement:

At present, many projects have begun to use the reinforcing belt, that is, at the original reserved post-pouring belt position, the concrete doped with high-efficiency expansion agent is used one level higher than the strength of the adjacent position, and the solidity and strength of the dense blocking front in the belt are increased through the expansion of concrete.

Therefore, the reinforcing steel bar added in the reinforcing belt actually plays the same role as the steel bar in the post-pouring belt, all in order to improve the tensile strength.

It should be regarded as a stressed steel bar. Cancel the reinforcement and impact, I don't think the main question should be asked. Since you are engaged in the construction industry, you should at least know the role of reinforced concrete.

Rebar has a similar coefficient of expansion to concrete.

It does not produce much differential deformation when subjected to environmental stress; Moreover, there is a good adhesion between the two, and when the external force is subjected, the two form a whole, and the overall force is relatively balanced; The third is that the concrete plays a protective role for the steel bars wrapped inside, so that the steel bars will not be easily oxidized and corroded.

The cancellation of the reinforcing steel bar means that the strip area of the reinforcing belt is unbalanced with the adjacent area outside the band, and the tensile strength is reduced, which has a great impact on the building.

After pouring the floor slab with steel bars, do you want to hail and disconnect the pro! Hello, glad to answer for you. The steel bar at the post-pouring belt must be penetrated and not disconnected.

If the span is not large, it can be equipped with sufficient reinforcement at one time; If the span is large, it can be disconnected according to the regulations, and the steel bar is to remain in its original state or disconnected according to the requirements before pouring concrete, which is determined by the type of post-pouring belt. The reinforcement of the pouring belt should be penetrated after settlement, the reinforcement of the telescopic pouring belt should be disconnected, and the plate reinforcement of the beam and plate structure should be disconnected, but the beam reinforcement is penetrated, if the reinforcement is not opened, the concrete shrinkage near the reinforcement will be greatly restricted, and the tensile stress cracking will be generated, thereby reducing the ability of the structure to resist temperature stress. The source dispersion and post-pouring belts on different sections should be tortuous and empty.

Hope mine can help you! Do you have any other questions?

Generally, in the process of building construction, especially the construction of floors, we must adhere to the way of finishing one floor and then doing one floor.

Moreover, even if we can get the accuracy, the pouring itself needs to wait for the process, which will actually increase the difficulty of construction, and the time does not save much on the dust.

Pro, the floor post-pouring belt refers to the floor after the construction is completed, and then set up on the outside of a layer of concrete pouring, its role is mainly to increase the bearing capacity and stiffness of the floor. When setting up the floor post-pouring belt, it is generally necessary to set up reinforcing steel bars to ensure its strength and stability. Specifically, the post-pouring belt of the floor needs to be based on the design load and structural form of the floor to design the number and arrangement of the reinforcing bar.

In general, the number of steel bars in the floor post-pouring belt should be more than that of the floor slab in the same section, and the diameter and spacing of the steel bars should be set according to the design requirements to achieve the purpose of enhancing the floor structure. It should be noted that the reinforcing steel bar of the floor post-pouring belt should be closely connected with the floor steel bar, and there should be no fracture or falling off. At the same time, during the construction process, the construction should be carried out in strict accordance with the design requirements and relevant regulations to ensure the quality and safety of the post-pouring belt of the floor.