The design of the building structure has many forms, and the frame shear wall structure is one of them. So, what are the principles of the structural layout of the frame shear wall? Below, the editor will introduce it to you in detail. 1. The main structure is not hinged The frame-shear wall structure should be designed as a two-way anti-side force system, and hinges should not be used between the main structural members. In seismic design, shear walls should be arranged in both main axis directions. The center line of the beam and column or the column and the shear wall should coincide, and the eccentric distance between the beam and the center line of the frame should not be greater than 1/4 of the column width. Second, the principle of shear wall layout The layout of the shear wall in the frame shear wall structure is generally arranged according to the principle of "uniform, symmetrical, dispersed and peripheral": (1) The shear wall should be evenly and symmetrically arranged near the periphery of the building, the elevator room, the plane shape change and the part with large dead load; it is not advisable to set the shear wall on both sides of the expansion joint, settlement joint and seismic joint . (2) When the unevenness of the planar shape is large, it is advisable to arrange the shear wall near the end of the protruding part. (3) When the shear wall is arranged, if the shear wall cannot be set in one direction in the longitudinal or horizontal direction due to the needs of the building, the lateral force members such as wall frames or supports can be used in this direction. The displacement value under should be close. The seismic rating of the wall frame should be considered according to the seismic rating of the shear wall. (4) The layout of the shear wall should be evenly distributed, the rigidity of the single-piece wall should be close, and the long-length shear wall should be provided with openings and connecting beams to form a double-limb wall or a multi-limb wall. The length of the wall limbs should not be greater than 8 m. The shear force generated by the horizontal force at the bottom of each section of shear wall should not exceed 40% of the total shear force at the bottom of the structure. (5) The longitudinal shear wall should be arranged in the middle section of the structural unit. When the longitudinal length of the house is long, it should not be concentrated at both ends to arrange longitudinal shear walls. Otherwise, post-construction pouring tape should be set in the appropriate part of the plane to reduce the impact of shrinkage stress during the concrete hardening process. The impact. (6) When staircases, shafts, etc. cause continuous floors to open holes, it is advisable to set up shear walls at the sides of the holes, and try to combine them with the adjacent anti-side force structures as much as possible. The middle part. (7) The spacing of shear walls should not be too large, and should meet the requirements of floor plane rigidity, otherwise the influence of floor plane deformation should be considered. Three, should bring a border The shear wall in the frame-shear wall structure should be designed as a framed shear wall with beams (or dark beams) around it. Vertical and horizontal adjacent shear walls should be connected together to form L shape, T shape and mouth shape, etc., in order to increase the rigidity and torsion resistance of the shear wall. 4. The layout principle of long plane shear wall In a long rectangular plane or a building with a long plane, the arrangement of shear walls should meet the following requirements: (1) When there is a large opening in the floor between the shear walls, the spacing of the shear walls should be reduced. (2) Longitudinal shear walls should not be arranged at both ends. 5. Thickness requirements of shear wall The shear wall should penetrate the full height of the building, and the thickness along the height wall should be gradually thinned to avoid sudden changes in rigidity. When the shear wall cannot be fully penetrated, the reduction of the stiffness of adjacent floors should not be greater than 30%. On the floor slab with abrupt stiffness, the structural measures should be strengthened according to the requirements of the conversion floor slab.
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