Dry Connection Joint for Precast Concrete Beam and Connection Method Therefor
(10) WO2026036923A1
(22) 26.06.2025; (43) 19.02.2026
(57) The present invention belongs to the field of prefabricated buildings. Provided are a dry connection joint for a precast concrete beam and a connection method therefor. An upper high-strength bolt is arranged above the top surface of the precast concrete beam (within the floor slab height), so as to increase a connection moment arm of the upper high-strength bolt, and thus realize an equal-strength joint connection with the steel reinforcement in the beam by using a single large-diameter high-strength bolt, thereby greatly improving the installation convenience. Additionally, a support bracket is provided for shear resistance, and combined with the clamping action of the upper and lower high-strength bolts, bidirectional force transmission of tension and compression is achieved (under normal conditions, the upper high-strength bolt resists tension, and the lower high-strength bolt resists compression; the situation may be opposite during an earthquake), ...
(71) Shanghai TANDD Technology Co., Ltd., CN
