The cast-in-place wall panel structure uses concrete cast-in-place for the walls, and a prefabricated or cast-in-situ house structure for the floor. The main advantage is good seismic performance. Compared with the mixed structure, the amount of plastering on the wall is greatly reduced, the labor intensity is reduced, and the amount of labor is reduced; compared with the prefabricated large-slab structure, the construction is simple, so it develops rapidly, and has become the main structural form of the multi-story and high-rise residential buildings in the earthquake zone of China one. The wall materials and construction methods of the cast-in-place wall panel structure can be divided into all cast-in-place concrete for the inner and outer walls, and cast-in-situ concrete for the horizontal and inner longitudinal walls. The outer wall adopts prefabricated slabs (referred to as cast-in-outside hanging) or bricks and blocks ( The cast-in-place wall can be constructed by using fixed formwork (large formwork, combined formwork, tunnel formwork) or sliding formwork or lifting formwork. The floor slab adopts cast-in-place concrete floor slab, prefabricated strip slab or monolithic slab. The floor slab should be made into continuous slab to improve the integrity of the house. The wall panel structure of inner and outer masonry should firstly build the outer wall and then pour the concrete inner wall to ensure a good combination of the inner and outer walls.
Internal force calculation: Under the action of vertical load, the internal force is distributed according to the area ratio of the cross section of the vertical and horizontal wall. When the horizontal horizontal force acts, a part of the external longitudinal wall can be used as the effective flange of the horizontal wall, and the calculation graph can be simplified as a frame. The walls of the horizontal wall are used as frame columns, the connecting beams of the horizontal wall are used as frame beams, and the floor slabs are used as hinged connections. The rod is calculated according to the horizontal force distribution of all horizontal walls. When the vertical horizontal force acts, the horizontal wall participates in the work, and the structure is composed of vertical and horizontal walls in the longitudinal direction. The spatial structure system works together. The calculation graph can be simplified to a combined frame composed of inner and outer walls. The connecting beams of the outer longitudinal walls are used as frame beams. The limbs of the vertical wall and the horizontal wall constitute the frame column. If the inner and outer wall materials are different, the thickness of the outer wall should be converted according to the ratio of the elastic modulus of the outer and inner wall materials.