How to determine the lap length of the foundation reinforcement and the column reinforcement 5

Page P36 on the 03G101-1 atlas says very clearly, you can see for yourself, the lap length is equal to the height of the base of 1 3.

Reinforcement calculation: 1. Calculation rules for reinforcement engineering quantity.

1. Reinforcement engineering should be distinguished from cast-in-situ and prefabricated components, different steel grades and specifications, respectively, according to the design length multiplied by the unit weight, calculated in tons.

2. When calculating the engineering quantity of reinforcement, if the design has specified the length of the reinforcement tower, it shall be calculated according to the specified tower length; If the design does not specify the length of the tower connection, it has been included in the loss rate of the reinforcement, and the length of the tower connection is not calculated. Joints such as electroslag pressure welding and sleeve extrusion of steel bars are calculated as units.

3. The length of the prestressed steel bar is calculated according to the external size of the component, and the length of the prestressed steel bar is reserved according to the design drawing, and different anchor types are distinguished.

0 0 Is there a knot length? It should be anchored, this should be determined according to the height of your foundation beam, if it is enough lae, add 6d straight anchor and more than 150 90 degree hooks. If it's not enough, make a 15d hook.

lae can be queried in the atlas and the new atlas should be called lad roar.

Foundation beams and columns anchorage this piece 11G101-1 should not be in the seismic atlas You can refer to it There is also 08G901 It should be this book There is also this aspect of the content I hope to help you say.

According to the anchorage calculation or the lap length specified in the drawing, you can refer to atlas 11G101

The problem is not very clear, please refer to the 11G101 atlas.

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.

The rebar lap length is the length required for two rebar bars to pass through the lap joint. Considering this, after research and practice, researchers have introduced a correction factor greater than one multiplied by the anchorage length to compensate for the standard application, as the length of the lashing lap. Therefore, the length of the welded lap of the reinforcement = the length of the anchorage correction factor.

Take a diameter 16 steel bar as an example: a steel bar with a diameter of 16, its lap length is, so its lap length should be.

The lap length of the reinforcement of the structural column is 100mm. It is mainly composed of seismic measures and structural components that do not participate in the calculation of structural forces. The minimum lap length of the lap length of the longitudinal steel bar that it is bright is 300mm, and the stirrup spacing within the lap length should not be greater than 100mm.

The two steel bars have a certain overlap length with each other, and the connection method of binding with wire tie is suitable for the connection of steel bars of smaller diameter. It is generally used for the reinforcing reinforcement mesh in the concrete Changjian grinding soil, and the warp and weft are evenly arranged, without welding, and only need to be fixed with iron wire.

When the height and thickness of the wall are relatively large, such as the self-bearing wall or the wind load is large, the structural column can be arranged at the appropriate part of the wall to form the wall with pilasters to meet the requirements of high bucket thickness ratio and bearing capacity, the spacing of the structural column should not be greater than 4m, and the distance between the structural column along the height transverse fulcrum and the cross-sectional width of the structural column should not be greater than 30.