2results about How to "Guaranteed interoperability" patented technology

This invention relates to the field of building engineering technology, specifically to a non-vibration pressure grouting construction method for tall steel-concrete composite columns. S1: Grouting holes are opened at the bottom of the steel-concrete column, and vent holes are opened at the top. S2: A grouting connection structure is installed, and a grouting connection pipe is welded at an acute angle to the column axis and extends into the column. A check valve is installed on the pipe, and reinforcing ribs are welded between the pipe and the column. S3: Pressure grouting is performed from the compacted concrete until it overflows from the vent holes. S4: After the concrete has settled naturally, secondary grouting is performed until it overflows from the vent holes again. S5: The check valve is closed to prevent backflow. S6: The grouting holes are sealed after the concrete reaches 70% of its design strength. This invention, through a grouting connection structure with a check valve and reinforcing ribs, combined with a secondary grouting process, systematically solves the problems of concrete backflow, insufficient compaction at the top of the column, and easy damage to the connection structure during the initial jacking process of ultra-high-rise buildings. It significantly improves construction quality, safety, and efficiency, and is applicable to the construction of tall steel-concrete composite columns in industrial and civil buildings.

The utility model discloses a mixed connection assembly type composite shear wall. The upper and lower edges of the UHPC edge-sealing shear wall plate are respectively provided with mortises and tenons, and the upper and lower layers are connected through the mortises and tenons in an embedded manner; the two steel pipe concrete end columns are arranged on the left side and the right side of the UHPC edge sealing shear wall plate respectively. The plurality of spring connecting pieces are separately arranged in gaps between the concrete filled steel tube end columns and the side edges of the UHPC edge sealing shear wall plates; one end of the spring connecting piece is fixedly connected with the UHPC edge sealing shear wall plate, and the other end of the spring connecting piece is fixedly connected with the steel pipe concrete end column. According to the UHPC edge sealing shear wall plate, dry type connection of a mortise and tenon joint structure is adopted, and the quality and efficiency of connection construction are improved; the internal RC wallboard is restrained through the square-frame-shaped UHPC edge banding, the high-strength performance of UHPC is fully utilized, and the anti-seismic capacity of the UHPC edge banding shear wallboard is effectively improved; the deformation self-resetting capacity is provided for the composite shear wall through the elastic restoring force of the high-strength springs, the high-strength springs cooperate with the steel pipe concrete end columns on the two sides, and the overall anti-seismic capacity is improved.