1, lacing is arranged in two directions, and the calculation formula is:
Support number = board area/(horizontal spacing * vertical spacing), plum blossom arrangement is equivalent to shortening the distance by one time in a certain direction, so the formula of plum blossom arrangement is support number = board area/(horizontal spacing * (vertical spacing /2)), which is simplified as support number =2* board area/(horizontal spacing * vertical spacing).
2. Tie the first horizontal distribution bar to the intersection of 1, 3,5,7,9, the second horizontal distribution bar to the intersection of 2,4,6,8, 10, and the third horizontal distribution bar to 1, 3,5,7,0. (The number of lacing bars is about 65438+ 0/2 of the intersection number of horizontal distribution bars and vertical distribution bars. If further investigation is needed, it is said that the spacing of 500 is achieved from the horizontal direction and vertical direction of lacing, and the distance between adjacent lacing diagonal direction is about 1.4*250=350.
3. The so-called plum blossom arrangement means that the arrangement should be staggered along the height direction, so that the lacing arrangement looks like plum blossom from the inside. Personally, I think five flowers can be used, because the two-way arrangement with a width of 500 and a spacing of 600 can be omitted, but the plum blossom will become one with a spacing of 300 and a height of 2880, with a starting spacing of half up and down and five flowers in the middle. 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 lacing bars between double-layer steel bars. The steel bars used for this kind of tension connection are called shear wall tension bars. Shear wall bracing is divided into two-way bracing and plum blossom two-way bracing.