Anchor rod retaining wall combined with main structure and design method

Abstract

The invention relates to an anchor rod retaining wall combined with a main structure. The bottom of the retaining wall is connected with the main structure. An anti-shock seam is arranged between a retaining wall body and the main structure, and an anchor rod is arranged at the upper end of the retaining wall. The anchor rod is arranged on the upper portion of the retaining wall for resisting the pressure of the soil side, and the bending moment and shear force at the root of the retaining wall can be effectively reduced; and the bottom of the retaining wall is connected with a floor or a roof of a basement of a main building, and the overall stiffness of the basement of the main building is fully used for preventing the retaining wall from sliding. After foundation trench soil backfilling, the soil body generates the soil pressure acting on the retaining wall, at the moment the soil anchor rod can provide tension against the soil pressure, the bending moment of the wall body is reduced, accordingly the purposes that the thickness of the wall body is reduced, the consumption of rebars of the wall body is lowered, and the bottom crack width and the top horizontal displacement of the wall body are controlled are achieved, and the anchor rod retaining wall can be widely applied to structural engineering of retaining walls with the high wall bodies, such as high slope retaining walls next to sunken plazas and slope buildings.

Description

technical field [0001] The invention relates to a retaining wall connected with a main structure. By setting anchor rods, the thickness of the wall body is reduced, the amount of steel bars at the bottom of the wall body is reduced, and the width of cracks at the bottom of the wall body and the horizontal displacement of the top are controlled. It is suitable for structural projects where the retaining wall is adjacent to the main structure and the height of the wall is high, such as the high slope retaining wall adjacent to the sunken square and slope building. Background technique [0002] The retaining wall bears the horizontal load generated by the external soil. When the height of the retaining wall adjacent to the main structure is high, especially in areas with high groundwater level, this load will cause the retaining wall of the higher wall to be high. A large bending moment and shearing force are generated at the bottom of the structure. If a gravity retaining wall...

AI Technical Summary

Problems solved by technology

Only separating the retaining wall from the main structure and designing it according to the cantilever structure can avoid the asymmetry of the lateral stiffness of the main structure, but the bending moment at the bottom of the wall is relatively large, and the crack width and deformation of the top of the wall are difficult to meet the specifications Limit requirements, according to conventional design ideas, in order to reduce the amount of reinforcement and reduce the width of cracks, the wall thickness of the retaining wall will inevitably be increased, and the increase in wall thickness will increase the excavation scope, concrete consumption and cost

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