Whether the upper erection bar of the cantilever beam can be made of a downward bending cantilever s

Just because you're so fierce upstairs, but not being fierce shows you're right.

First of all, it needs to be explained that the lifting beam of the general structure does not consider the first function (the large cantilever structure at 8 9 degrees only needs to consider the vertical ** effect), so the anchorage of the lifting beam reinforcement is according to the anchorage length of the tensile steel bar la rather than the seismic anchorage length lae.

The anchorage and end structure of the cantilever beam and the pure cantilever beam reinforcement can be constructed by the landlord in accordance with the 101 atlas.

<> this is the practice of the 03 atlas. The new atlas introduces LAB, which you can flip through the 11G101 atlas for details.

Hehe, I saw the car behind closed doors again, and the anchorage of the steel bar on the top of the cantilever beam is la lae? What does +12d mean? It's really a shame that you're level 17, that's all? If you don't understand, don't answer randomly, hehe, for your good, hehe, still 101? Do you understand?

There are 3 types of this problem.

1. Pure cantilever is only a cantilever beam, there is no connecting beam in it, and the beam top reinforcement enters the bearing, which is the beam anchor column node requirement in 101.

2. If there is an inner beam, the steel bar at the top of the beam enters the beam net span 1 3, and is not less than the net length of the cantilever.

3. The embedded beam (also called the horizontal beam), which appears in the brick-concrete structure, is without columns, and the length of the concrete entering the wall is not less than the times of the net length of the cantilever and the steel bar penetrates.

The above 3 are the requirements of the cantilever beam top reinforcement, and 1 is that at the cantilever end, the lower reinforcement must be bent for 15d, which is not stressed and is not bent at the end, and the anchorage length entering the support is 12d

1. Cantilever beam reinforcement structure: The cantilever beam is stressed on the top, and the steel bar above is larger than the steel bar below. At the same time, it is necessary to meet the trace length and reinforcement ratio of the reinforcement.

2. The steel bars of the cantilever beam are generally made of reinforced concrete. The cross-sectional height is generally taken from the span of 1 6 1 8, when the cantilever length is greater than 1500 trousers messy (the construction unit is mm unless otherwise specified), it is necessary to bend the steel bar.

3. The corner of the eaves of the roof panel should be equipped with a radial structural steel bar that bears negative bending moment, and the spacing of the grip file should not be greater than 200mm along l 2 (l is the length of the eaves), and the anchorage length of the steel bar is generally taken > l, and the diameter of the steel bar is the same as that of the stressed steel pure rib at the cantilever plate support and not less than 6mm.

4. When the width of the eaves is 500mm, 3 structural steel bars can be used, and the anchorage length is >500mm; When 500mm

1. Cantilever beam reinforcement structure: The cantilever beam is stressed on the top, and the steel bar above is larger than the steel bar below. At the same time, it is necessary to meet the trace length and reinforcement ratio of the reinforcement.

2. The steel bar of the cantilever beam is made of reinforced concrete. The cross-sectional height is generally late to take the span of 1 6 1 8, when the cantilever length is greater than 1500 (the construction unit is mm unless otherwise specified), it is necessary to bend the steel bar. 3, the corner of the roof panel eaves 3, the corner of the roof panel eaves should be equipped with a radial structural steel bar that bears negative bending moment, the spacing along l 2 (l is the length of the eaves) should not be greater than 200mm, the anchorage length of the steel bar is generally taken la>l, the diameter of the steel bar is the same as the stressed steel bar at the cantilever plate support and not less than when the width of the eaves l 500mm, the structural steel bar can be used 3, and the anchorage length la>500mm; When 500mm

In my memory, it is the length of the cantilever that stretches out to the span, so it gets: the length of the cantilever is the length of the reinforcement ; The length of the cantilever is the length of the steel bar for the reference to 03G0101 when only the following useful text is found, if there is a better answer, please give advice! The first row of longitudinal bars on the upper part of the cantilever beam (including the cantilevered part of other types of beams) extends to the end of the beam and bends downward, and the second row extends to the 3L 4 position, and L is the net length of the cantilever calculated from the side of the column (beam).

When the specific project needs to bend down obliquely from the root of the cantilever beam, the designer should additionally indicate.

In general, the lower reinforcement of the cantilever beam belongs to the category of structural reinforcement, because it is an important component of the supporting beam body, which directly affects the bearing capacity and stability of the beam body. Therefore, in the architectural design and construction, the material selection, design and construction of the lower steel bar of the cantilever beam need to be carried out in accordance with the relevant structural and structural steel bar standards. Raid only.

Summary. No. Because the load on the upper part of the ring beam of the frame structure is mainly a vertical load, it does not have the required horizontal support capacity on the cantilever plate.

If the upper steel bar of the ring beam is extended to the cantilever plate, the bearing capacity of the cantilever plate will be reduced, and there is a potential safety hazard. Description: The ring beam of the frame structure plays the role of bearing and sharing the load in the support of the cantilever plate, but it does not have the function of horizontal support.

If the upper reinforcement of the ring beam is extended to the cantilever plate, because the reinforcement cannot bear the transverse load and cannot provide sufficient supporting rigidity, the cantilever plate is prone to deformation or fracture, thereby endangering the safety of the whole structure. Subheadings summarize the extension:1

The upper reinforcement of the ring beam cannot withstand the horizontal load on the cantilever plate. 2.Cantilever slabs require sufficient horizontal support capacity to ensure structural safety.

3.When designing the cantilever plate structure, it is necessary to consider many aspects such as support mode, material selection, load calculation, etc., to ensure the stability and safety of the structure.

No. Because the load of the upper reinforcement of the ring beam of the frame structure is mainly the vertical load, it does not have the required supporting capacity of the water width branch on the cantilever plate. If the upper part of the ring beam slip steel bar is extended to the cantilever plate, the bearing capacity of the cantilever plate will be reduced, and there is a potential safety hazard.

Description: The ring beam of the frame structure plays the role of bearing and sharing the load in the support of the cantilever plate, but it does not have the function of horizontal support. If the upper reinforcement of the ring beam is extended to the cantilever plate, because the reinforcement cannot bear the transverse load and cannot provide sufficient supporting rigidity, the cantilever plate is prone to deformation or fracture, thereby endangering the safety of the whole structure.

Subheadings summarize the extension:1The upper reinforcement of the ring beam cannot withstand the horizontal load on the cantilever plate.

2.The cantilever slab needs sufficient water and water support capacity to ensure structural safety. 3.

When designing the cantilever plate structure, it is necessary to consider many aspects such as support mode, material selection, load calculation, etc., to ensure the stability and safety of the structure.

The upper rib of the beam does not bend, can it be directly anchored in the plate?

In construction engineering, in general, the upper rib of the beam needs to be elbowed when it reaches the support in order to transfer the horizontal force to the support. If the upper rib of the beam is not bent and is directly anchored in the cooker plate, it may lead to poor connection between the beam and the support, which will cause the safety problem of the structure. Therefore, in general, if the design requires that the upper reinforcement of the beam be anchored in the plate, then the horizontal force needs to be transmitted by other means, such as using special force transmission members or with the help of other structural components to complete the transmission of horizontal force, so as to ensure the safety of the structure.

Summary. Under what circumstances is the cantilever beam set up bending ribs in **Atlas description? : Hello, dear, I'm glad to answer your <>

In the "Code for Design of Concrete Structures", it is stated that the main beam of the main beam of the junction of the main and secondary beams needs to be bent and lifted, and the upper main reinforcement of the cantilever beam of the cantilever beam needs to be bent. The upper part of the beam is bent at the end of a row of ribs. The reinforcement of the column wall needs to be bent at the top of the seal.

Under what circumstances is the cantilever beam set up bending ribs in **Atlas description?

Under what circumstances is the cantilever beam set up bending ribs in **Atlas description? : Hello, dear, I'm glad to answer your <>

In the "Design Code for Concrete Good Structure", it is stated that the main beam of the main beam of the junction of the main and secondary beams needs to be bent and beaten, and the upper main reinforcement of the cantilever part of the cantilever beam needs to be bent. The upper part of the beam is bent at the end of a row of ribs. The reinforcement of the column wall needs to be bent at the top of the seal.

Under what conditions should it be bent, but not under any conditions.

The main reinforcement of the upper part of the cantilever part of the cantilever beam needs to be bent.

If the upper part of the pick beam is a double row of steel bars, is the corner bar still bent?

The upper second row of ribs of the cantilever beam needs to be bent downward.

Now the question is what the situation is that the upper corner ribs are bent into the shape of the butt.

Dear, no.

Yes, if it is a double row of steel bars, the corner bars need to be bent down, not bent.

We encountered a situation where the company required the use of landmarks to require all the upper part of the cantilever beam Tongdong corner ribs must be made into the shape of the butt, and now the situation is in the god I want to ask how long the beam is to make the butt shape.

When the length of the pick beam is greater than 1500.

If there are two different specifications on the drawings at the same time, we choose the national standard or the landmark.

Dear, this is not necessarily, but the usual situation is like this, as if the industry standard is higher than the national standard, and the local standard is higher than the industry standard. Generally, you have to abide by the closed rolling hole of the landmark, because your construction site will be responsible for acceptance in the future.

The upper reinforcement of the cantilever beam is not necessarily a long bar, and the construction method should be carried out according to the F of 11G101-P89.

As shown in B, remove the bent reinforcement in the upper row, (because there are only two corner bars in the upper row); Referring to the A sample again, the lower bending point (lower point) is moved forward to the dimension of the lower right sample of A, and the stirrups are encrypted.

This designer is also too lazy, lazy to the point of being a little irresponsible!