How to set the lacing of the secondary structure wall and the length of lacing are based on.

According to the seismic design requirements and the position of the wall. Generally speaking, the infilled wall should be provided with 2φ6 lacing bars every 500mm along the overall height of the frame column, and the length of lacing bars extending into the wall should not be less than 1/5 and not less than 700mm at 6 and 7 degrees, and should run through the whole length of the wall at 8 and 9 degrees.

According to the design requirements of building structure and the mechanical characteristics of shear wall, the reinforcement of shear wall adopts double-layer bidirectional design. In order to ensure that the designed steel bars are fixed in the best position, it is necessary to set a little bit per meter between the double-layer steel bars.

Extended data:

The midline height is the vertical distance between the upper and lower floors of the building. Floor and roof layers can find the center line size of the layer thickness according to the layer thickness, and the measurement datum plane also exists; However, it is difficult to find the center line position at the bottom of the ground, which is an indefinite value and needs to be defined separately. Therefore, it is not advisable to define the story height by the midline size.

When setting lacing, the cross section of reinforcement is relatively small because it does not bear the internal force of the structure. Generally, 6mm or 8mm steel bars are used, and both ends are made into 180 hooks and fixed with iron wires.