How to calculate the longitudinal reinforcement lap of a column? Urgent need!!! 15

The lap length of the longitudinal reinforcement of the column is calculated according to the seismic grade, concrete strength grade, and according to the grade, as shown in the figure below

The lap length of the longitudinal reinforcement of the column is equal to the height of the foundation of 1 3, as detailed in page P36 of the 03G101-1 atlas.

The lap rate of the longitudinal reinforcement of the column is 25%, which means that the number of lap reinforcement of the column longitudinal reinforcement in the same plane does not exceed 25% of the longitudinal reinforcement, which is to stipulate that the reinforcement should be staggered and lapped, that is, the length of the longitudinal reinforcement of the lower column extending to this layer is different, and the length of the longitudinal reinforcement of the corresponding column becomes smaller (the length of the column longitudinal reinforcement is certain), and the lap length is unchanged.

The lap rate is 25%, that is, 4 and each of them are to be staggered lap, and the adjacent 2 steel bars are staggered, and the length of the longitudinal reinforcement of the lower column extends to this layer increases, so the length of the column longitudinal reinforcement of this layer of this reinforcement becomes smaller. This is the case of construction, and you can make a budget without considering this problem, and you can assume that the lap of the reinforcement in the same plane can be calculated.

Three ways to lap it.

Lashing mechanical welding.

Lashing needs to be added.

Mechanical reinforcement that needs to be jointed.

The weld calculates the throughput directly.

This is all counted as one, the lap cross-sectional area shall not exceed 50% of the total cross-sectional area of the column reinforcement, and the lap spacing shall be greater than 35d

There is no necessary connection between the structural column reinforcement and the beam height, but for the sake of the overall structure, the structural column reinforcement still needs to be extended into the beam, and the planting bar is used to rise into the beam.

The structural column is generally between the load kz, and when the kz spacing is greater than a certain value, the corner of the wall, and the intersection of the wall.

Generally in the one-third position, the additional stirrups are placed on one side according to the support.

The structural reinforcement is related to the height of the beam, and when the height of the beam web is greater than or equal to 450, the structural reinforcement should be set. The spacing is set by 200. The structural reinforcement anchored into the node is 12dThe web height is also the height of the beam after removing the plate surface.

Location: When the beam height is greater than 600, it is generally available.

Additional stirrups: the junction of the main and secondary beams, are provided with three on each side of the main beam, and the spacing is 50

Frame stirrup infill area: one-third of the column height. (the root of each layer and the top of the column), and greater than or equal to 500

What is the lap length of the frame column reinforcement and how to calculate it.

Hello, what is the lap length of the frame column reinforcement, and the depth of the reinforcement is 100mm; The length of the lashing lap is 500mm. Calculation method 1, lashing lap: in the floor above and below the height of each floor 1 6, column width and 500mm take the greater value, if the bottom layer is greater than or equal to 1 3 storeys high, in this section can not be disconnected steel bar, the joint ratio of the rigid bar can not be greater than 50%, outside that section, the lap length of the rigid bar is lae, the distance between the joint head and the joint is better than the mechanical connection:

The distance between the joint and the joint is greater than or equal to the welded connection: the distance between the joint and the joint is greater than or equal to 35d and 500 for the non-connected section.

Southwest region generally choose 15G701-3, which explains the first article: the connection of vertical steel bar and reserved steel bar, not less than 30d when binding joints. It is required to be not less than 600mm when lashing lap.

When the longitudinal reinforcement of the structural column and the horizontal tie beam is lapped, all the longitudinal reinforcements can be lapped in the same connection section, and the lap length of the reinforcement is 50d at this time. The longitudinal reinforcement of the structural column is generally designed as 12,50d=12*50=600mm.

What is the lap length of the frame column reinforcement and how to calculate it.

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What is the lap length of the frame column reinforcement and how to calculate it.

What is the lap length of the frame column reinforcement, how to calculate your pro, the column reinforcement is less than or equal to 16 circles, you can choose to lash and connect, the lap length is 35 times d, the spacing between the upper and lower 500mm of the lap center line point is staggered, and the section joint can not be greater than 50%; The steel bars greater than 16 and less than or equal to 25 are connected by electroslag pressure welding, and the joint spacing and the joint percentage are the same as those of the binding; More than 25 steel bars are bolted, and their spacing and joint percentage are also the same as above, hoping to help you with caution. If my answer is helpful to you, please give a thumbs up (comment in the lower left corner), look forward to your like, your efforts are very important to me, and your support is also the driving force for my progress. Finally, I wish you good health and a good mood!

What is the lap length of the frame column reinforcement and how to calculate it.

1. The calculation of the length of the column reinforcement binding and excavation lap should be based on the seismic grade, concrete strength grade, and grade. 2. The lap of the column should be within the non-infill area, and avoid the floor surface of the infill area (500mm; 1 6 net height; The longest side of the column) max, the lap length is the frame answering frame column reinforcement generally does not use lashing lap, because the diameter of the reinforcement is greater than 16mm, and the design of more than 16mm requires mechanical connection (or welding).