Connecting plate for abnormal-shape double-row piles

Abstract

The invention discloses a connecting plate for abnormal-shape double-row piles. The connecting plate comprises a front row pile crown beam, a back row wall crown beam, a connecting plate body and structural steel arranged in a back row wall; the back row wall crown beam is internally provided with a plurality of first longitudinal bars, ring bars, large stirrups and small stirrups, the structural steel is sleeved with the ring bars, the large stirrups are bound on parts, located outside the scope of the width of wing edges of the structural steel, of the first longitudinal bars, and the small stirrups are bound on parts, located inside the scope of the width of the wing edges of the structural steel, of the first longitudinal bars; and the connecting plate body is internally provided with a plurality of second longitudinal bars, small U-shaped main bars and large U-shaped main bars, the ring bars are sleeved with the closed ends of the small U-shaped main bars in a pulling manner, and the closed ends of the large U-shaped main bars are arranged in the back row wall crown beam. According to the connecting plate for the abnormal-shape double-row piles, the problem that the main bars of the connecting plate body cannot penetrate the back row wall crown beam due to the fact that the structural steel penetrates the connecting plate body can be solved; and meanwhile, the problem that the anti-shearing bearing force and the anti-bending bearing force of the crossing position of the connecting plate body and the back row wall crown beam are seriously weakened after the structural steel penetrates the connecting plate body can be solved.

Description

technical field [0001] The invention belongs to the fields of foundation pit support and slope protection, and in particular relates to a connecting plate for special-shaped double-row piles. Background technique [0002] With the rapid development of urbanization and the vigorous promotion of urban integration, the construction of underground facilities such as underground parking lots, underground commercial plazas, and underground railways requires foundation pit support. Urban building foundation pits are often close to urban underground pipe network facilities (such as underground water pipes, gas pipes, communication cables, etc.) and existing buildings, and the groundwater level is relatively high. Due to the limitations of the surrounding building environment, it is often impossible to use soil nails and anchors beyond the red line of the building for foundation pit support. Due to the limited rigidity of cantilever piles, the support depth is relatively shallow. Whe...

AI Technical Summary

Problems solved by technology

The use of the connection plate can not only avoid the problem that the main reinforcement of the connection plate cannot pass through the crown beam of the rear wall due to the section steel penetrating the connection plate, but also solve the shear bearing capacity of the intersection of the connection plate and the crown beam of the rear wall after the section steel penetrates the connection plate and severe weakening of the flexural capacity

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