How to tie the horizontal reinforcement of the shear wall when it encounters the dark column?

Horizontal reinforcement is used to wrap the dark columns and then carry out fixed lashing.

Dark pillars are shear walls.

Another name for the middle edge member, it is a part of the shear wall, which is generally located at the end (i.e., the edge) of the plane of the wall limb, and is mainly used to carry the in-plane bending moment experienced by the wall.

Function. The width of the dark pillar is the same as that of the wall, and it is not easy to distinguish it hidden in the wall in appearance, hence the name.

I don't know which version of rebar you're using. The 315 and 528 versions have changed the judgment principle of the dark pillar and the end pillar.

Version 315: Judged by the size of the column section, regardless of the column category. When the column is the same width as the wall, it is calculated as a dark column, and when the column section is larger than the wall, it is calculated as an end column.

528 version: adjust the judgment method of the shear wall encountering the dark column, when encountering the dark column, regardless of the size of the dark column section, always extend to the end of the bend, when it is a non-dark column, only to judge whether the column edge is flush with the wall edge, the flush side extends to the end of the bend, and the uneven side is anchored to the column edge.

Therefore, if you are using version 315, the column category is dark column, and the column section is wider than the wall or the column category is end column, and the section is the same width as the wall, the software will calculate according to the end column node. If you are using the 528 version and the column category is End Column, please enlarge the image to see if the wall edge line is not aligned with the column edge line.

The binding method of the horizontal reinforcement of the shear wall at the dark column can be operated by referring to the node "How to Handle the End of the Horizontal Reinforcement of the Shear Wall When There Is a Dark Column at the End" on page 68 of 11G101-1. For the dark column encountered in the middle of the wall, the horizontal reinforcement of the shear wall passes through as usual.

How to anchor the horizontal reinforcement of the shear wall in this dark column can refer to the practice of the "end dark column wall" node on page 47 of 03G101-1.

How to anchor the horizontal reinforcement of the shear wall (basement retaining wall) on the inside and in the dark column part?

The outer wall of the basement (shear wall retaining wall) is anchored at the corner of the water hail flat reinforcement: the horizontal reinforcement is inserted into the inner side of the dark column reinforcement, and the insertion part is enough to anchor the length. The anchoring of the rebar means that the rebar is wrapped in concrete, which strengthens the connection between the concrete and the rebar and makes the building stronger, and the purpose of the sail is to enable the two to work together to bear various stresses (working together to withstand the pressure, tension, bending moment, torque, etc. from various loads).

The anchorage length of the steel bar generally refers to the total length of the stressed steel bar of beams, plates, columns and other components extending into the support or foundation foundation, including straight lines and bending parts. The position and form of anchoring, can be used hook, bending and other forms, can also refer to the length of the reinforcement anchored into the component, if there is not enough anchorage length, the reinforcement force can not be effectively transmitted to the anchor solid, in order to ensure the effect of reinforcement force transmission, the specification stipulates that the anchorage length is not less than 200mm.

The horizontal ribs of the shear wall intersect with the end column of the dark column, whether to fully tie a piece of pro! Hello, glad to answer for you. The intersection of the horizontal reinforcement of the shear wall and the end column of the dark column is to be fully tied together, and the horizontal reinforcement wraps the dark column, and then carries out fixed binding.

The dark column is another name for the edge member in the shear wall, which is a part of the shear wall, which is generally located at the end (i.e., the edge) of the plane of the wall limb, and is mainly used to carry the in-plane bending moment action of the wall. The width of the dark column is the same as the wall body, and it is not easy to distinguish hidden in the wall in appearance, so it is named as the shear wall binding specification requirements: 1. The lap joint of the vertical bar and the lap bar stretching out of the lap bar needs to be tied with 3 horizontal bars, and its lap length and position are in line with the design requirements, and when the design is not required, it should conform to the minimum lap length table of the longitudinal tension reinforcement in this book.

2. The shear wall reinforcement should be tied point by point, and the tension or support reinforcement should be tied between the double rows of steel bars, and the longitudinal and horizontal spacing should not be greater than 600mm, and the outer skin of the steel bar should be tied with cushion blocks or plastic cards. 3. At the connection between the shear wall and the frame column, the horizontal transverse bar of the shear wall should be anchored into the frame column, and its anchorage length should meet the design requirements. If the column concrete is poured first and then the shear wall reinforcement is tied, the connecting reinforcement or embedded iron parts in the column should be reserved in the column, and the wall reinforcement should be used as a connection when the column is dismantled and tied to the wall reinforcement.

The length of the reservation shall be in accordance with the provisions of the design or specification. 4. The anchorage length of the horizontal ribs of the shear wall at both ends, corners, cross nodes, connecting beams and other parts, as well as the reinforcing ribs around the opening, should meet the design and seismic requirements. 5. After clamping, the vertical steel bar should be trimmed, and the angle iron should be added to the upper mouth of the template or the vertical steel bar stretched out with a ladder bar should be fixed, and there should be a special person to take care of the concrete pouring, and adjust it again after pouring to ensure the accuracy of the position of the steel bar.

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Summary. Kiss! Hello, glad to answer for you.

Pro, if the longitudinal reinforcement of the wall is set in the dark column of the shear wall, the dark column is defined as a structural column, so the intersection position of the wall and the column, and the longitudinal reinforcement of the wall is calculated on the dark column; Solution: Select the structural column component and convert it to a dark column. The wall column includes two types of dark columns and end columns, mainly longitudinal reinforcement and stirrup 1, the vertical reinforcement of the shear wall does not need to be arranged into all the dark columns such as GBZ and GAZ, and the dark column itself has vertical reinforcement.

See 12G901-1 reinforcement layout diagram 2 for details, you said that the wall width is greater than the dark column, under normal circumstances, the side that is flat with the dark column does not need to arrange the wall longitudinal reinforcement, the principle is the same as the other side should have the longitudinal reinforcement of the wall, otherwise there will be no reinforcement for the 100. However, it is rare for the dark pillars to be of different widths from the walls, and most of them are caused by the designer's lack of attention or consideration, such as the underground part is designed by two design institutes, or the wall columns of the underground part are designed in two parts. If it is brought up at the time of the drawing triage, it will usually be changed.

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Is there a longitudinal reinforcement in the dark column of the shear wall?

In which specification is it there?

Kiss! Hello, glad to answer for you.

Pro, if the longitudinal reinforcement of the wall is set in the dark column of the shear wall, the dark column is defined as a structural column, so the intersection position of the wall and the column, and the longitudinal reinforcement of the wall is calculated on the dark column; Solution: Select the structural column component and convert it to a dark column. The wall column includes two types of dark columns and end columns, mainly longitudinal reinforcement and stirrup 1, the vertical reinforcement of the shear wall does not need to be arranged into all the dark columns such as GBZ and GA, and the dark column itself has vertical steel blind reinforcement.

See 12G901-1 reinforcement layout diagram 2, you said that the wall width is greater than the dark column, under normal circumstances, the side with the dark column does not need to arrange the wall longitudinal bar, the principle is the same as the other side should have the longitudinal bar of the wall, otherwise the old god Jing 100 will have no reinforcement. However, it is rare for the dark pillars to be of different widths from the walls, and most of them are caused by the designer's lack of attention or consideration, such as the underground part is designed by two design institutes, or the wall columns of the underground part are designed in two parts. If it is brought up at the time of the drawing triage, it will usually be changed.

Hope mine can help you!

If you have any other questions, please ask me again<>

Kiss the layout specification of the longitudinal reinforcement of the shear wall column.

Which one is the norm?

Kiss the "Technical Regulations for Concrete Structures in High-rise Buildings".