What are the specifications of the reinforcement of the raft edge banding structure?

Rafts. The specification of the edge banding structure reinforcement is a double-layer two-way 25@200 pull-through.

The raft reinforcement of this project is double-layer two-way 25@200 pull-through, and the local internal force is larger and encrypted to 25@100; The settlement and deformation of the building foundation is uniform, and the maximum value is 50mm.

The raft plate reinforcement should be configured in a two-way double-layer configuration, and the reinforcement spacing at the place where the local column spacing is large and the internal force is large can be partially encrypted, and the reinforcement ratio can be locally.

Where the thickness of the raft changes or the elevation changes, it is advisable to use the bevel angle to smooth the transition to avoid stress concentration.

It can be used with the raft gluten and bottom gluten.

There are three kinds of edge banding structure on the side of the plate edge of the plate foundation, one is the edge banding structure of the longitudinal rib edge, the other is the edge banding method of the U-shaped rib structure, and the third is the edge banding structure on the edge side of the plate.

Many side structural reinforcements are available in diameters of 14 mm or 16 mm. The diameter and quantity of the side structure reinforcement are directly related to the thickness of the raft and the two-way main reinforcement, which depends on the specification and is calculated.

The side structure reinforcement is made of 14mm or 16mm diameter.

Answer: Many drawings are designed this way.

The answer is supplemented that the diameter and quantity of the side structure reinforcement are directly related to the thickness of the raft and the two-way main reinforcement, which depends on the specification and is subject to calculation.

The length of the straight section must be "=, which is the requirement for the design, if this condition cannot be met, it must be replaced by a smaller specification of reinforcement. 16. The upper part of the plate reinforcement extends into the support for LA, and the bottom reinforcement extends into the support" = 5d and to the center line of the support. 17. a beam-plate raft.

The side structure reinforcement is made of 14mm or 16mm diameter.

The edge banding reinforcement is a structural reinforcement, which can be the main reinforcement with a smaller base plate. This does not need to be calculated.

1. The specifications of the main reinforcement reinforcement of the edge banding structural components are generally not less than 2 standard levels than the main reinforcement of adjacent components, which are determined according to the design specifications and related structural calculations.

2. The structure of the raft edge banding can be designed as a dark beam column type or a rummaging beam column type as needed, etc., the edge banding components are firmly connected with other components and form a frame structure, and the steel bar specifications can be understood as force transmission, stable components or designed according to the seismic grade of the building.

Hello, your problem, I seem to have encountered it before, the following is my original solution ideas and methods, I hope to help you, if there is a mistake, I hope to forgive me! 1. The raft foundation reinforcement is a double-layer two-way reinforcement mesh sheet up and down, and when the design is not explained, the position of the bottom plate reinforcement is in accordance with the "bottom reinforcement, the short-span reinforcement is placed in the lower row, and the long-span reinforcement is placed in the upper row; The upper reinforcement, the short-span reinforcement is placed in the upper row, and the long-span reinforcement is placed in the lower row", and each intersection should be tied firmly with wire. Second, the diameter of less than or equal to 16 steel bars are generally connected by binding lap joint; Threaded rebar with a diameter greater than 16 is generally mechanically connected.

The position of the joint should be set at a place with less force, and fewer joints should be set on the same steel bar. 3. The position of the stressed steel bar should be staggered from each other, when the mechanical joint is used, in any 35d and not less than 500mm section, and when the lashing lap joint is used, in the section of any double lap length, the cross-sectional area of the stressed steel bar with the joint accounts for the percentage of the total cross-sectional area of the stressed steel bar should meet the requirements of the following table: Fourth, the frame column reinforcement should be considered in accordance with the mechanical connection.

The raft foundation and the stressed steel bars of the upper return beam are all mechanically connected. The anchorage length and lap length of the longitudinal reinforcement meet the design and specification requirements. Fifth, the position of the stressed steel bar welding or lap joint should be correct, the bottom through bar grid L0 3 (including L0 3, L0 is the greater value of the left span and the right span) range for the through longitudinal bar connection area, the top in the column network L0 4 range for the top through longitudinal bar connection area.

6. When binding the elevator shaft and the foundation steel bar, due to the force, the lower steel bar, the long steel bar is tied at the bottom, the short steel bar is on the top, and the upper steel bar is just the opposite. Seventh, the wall, the column reinforcement stretches to the bottom of the raft reinforcement top, the length of the straight section is 200, and the spacing is not more than 500 and not less than two horizontal distribution ribs (or stirrups) are tied with the main reinforcement in the raft, wherein the column hoop is a non-composite hoop; Tie the first horizontal bar or stirrup at the interval between the horizontal distribution bars (or stirrups) of the wall body above the top surface of the raft. References:

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If the specific specifications and quantities of structural reinforcement are not included in the design of the foundation raft edge banding construction drawing, the following steps can be carried out:1First, check whether there are relevant specifications or standards in the design drawings to see if there is any mention of what specifications and quantities of structural reinforcement need to be used; 2.

If no relevant code or standard is available, it can be referred to according to the recommendations in common design, manufacturing, or construction specifications. For example, according to factors such as the thickness of the plate, the material of the plate, and the size of the plate, it can be determined what specifications and quantities of structural reinforcement need to be used; 3.By contacting the draftsman, designer or user to understand their specific requirements and use of the structural reinforcement in the design, the specification and quantity of the structural reinforcement can be better determined.

In conclusion, when determining the specifications and quantities of structural reinforcement, the corresponding norms, standards and design requirements should be followed, and appropriate consultation and consultation should be carried out. At the same time, it is also necessary to carry out actual measurement and inspection to ensure that the size and quantity of the structural reinforcement meet the requirements, so as to ensure the firmness and stability of the edge banding structure of the foundation raft. <>

Summary. Enter the information about the edge banding reinforcement directly when defining the raft foundation. It is mainly to pay attention to the fact that the reinforcement of the raft gluten at the protruding part is different from the reinforcement of the steel bar in the span.

When arranging the ribs, use custom to draw the range of the ribs. Edge banding is needed to strengthen the edge structure. Generally, only the overhanging part of the board or the flat raft foundation needs to be edgebanded.

Enter the information about the edge banding reinforcement directly when defining the raft foundation. The main thing is to pay attention to the fact that the reinforcement of the raft gluten in the silver excavation position is different from the reinforcement in the span. When arranging the stress ribs, use custom to draw the judgment range of the cloth ribs.

Edge banding is needed to strengthen the beating edge structure. Generally, only the overhanging part of the board or the flat raft foundation needs to be edgebanded.

Application scope of raft foundation: what kind of foundation type is used for building stuffiness, which is closely related to the type of foundation soil and the distribution of soil layer. In engineering design, such geological conditions are often encountered, and the rock and soil layer under the basement floor is a weathered residual soil layer, a fully weathered rock layer, a strong weathered rock layer or a medium weathered soft rock layer, so it is possible to use a natural foundation.

The basement of high-rise buildings is usually used as an underground parking garage, and too many interior walls are not allowed on the building, thus restricting the use of box-shaped foundations; The raft foundation can not only give full play to the bearing capacity of the foundation, adjust the uneven settlement, but also meet the space use requirements of the parking garage