4results about How to "High node strength" patented technology

The invention belongs to the technical field of building structural member connection, and discloses a square steel tube confined concrete column-RC beam connection joint which comprises a connection joint body used for connecting a steel tube confined concrete column and a reinforced concrete beam. The connecting joint comprises a joint area steel pipe, and the reinforced concrete beam penetrates through the joint area steel pipe and is fixedly connected with the joint area steel pipe. The steel pipe confined concrete column comprises an upper column and a lower column; a connecting assembly is arranged in the reinforced concrete beam, penetrates through the joint area steel pipe and is fixedly connected with the joint area steel pipe. The node area steel pipe is filled with concrete. The method is convenient and fast to construct, reliable in joint performance, high in material utilization rate, small in steel consumption and excellent in anti-seismic performance, local buckling of the square steel pipe can be effectively delayed, the integrity of concrete is higher, the restraining effect on core concrete is enhanced, economic benefits are improved, and the problems that in the prior art, construction is difficult, and joints are complex are solved.

The utility model provides a photovoltaic greenhouse agricultural shed support which comprises a support body, the support body comprises a plurality of stand columns and a plurality of girders erected on the stand columns, the girders are arranged side by side, a plurality of purlines are arranged on the surfaces of the upper sides of the girders at intervals, and photovoltaic panels are installed on the purlines; first angle aluminum is arranged on the opposite surfaces of every two adjacent girders, a sunlight plate is connected between the first angle aluminum arranged on the opposite surfaces of every two adjacent girders, second angle aluminum is arranged on the opposite surfaces of every two adjacent stand columns, and a sunlight plate is connected between the two second angle aluminum arranged on the opposite surfaces of every two adjacent stand columns. The sunlight plates are fixed through the angle aluminum to replace traditional plastic cloth, the problems that the plastic cloth is prone to aging and needs to be replaced frequently are solved, the durability of materials is remarkably improved, and the splicing connection mode of the sunlight plates and the angle aluminum avoids the problem that girders and purlines cannot interfere with covering installation films due to the fact that photovoltaic plates need to be installed.

The utility model relates to underground engineering support technical field, concretely is a kind of node reinforced assembly type steel pipe concrete support structure, and it is applicable to the reinforcing support of soft rock roadway or tunnel.The structure includes prefabricated steel pipe concrete section and steel ring plate connecting piece, and the end face of adjacent prefabricated steel pipe concrete section is butted, and the periphery of butt joint is connected by rigidly wrapping of steel ring plate connecting piece;The prefabricated steel pipe concrete section is divided into top arc section, two side help sections and bottom arch section and is spliced at different positions, and the two ends of top arc section are connected with the one end of two side help sections by steel ring plate connecting piece, and the other end of two side help sections is connected with the two ends of bottom arch section by steel ring plate connecting piece.The utility model connects by steel joint-steel ring plate, and solves the technical problems, such as insufficient structural mechanics performance, node stress concentration, difficult guaranteeing of concrete pouring quality and the like, which steel pipe concrete support faces in soft rock roadway or tunnel.

The utility model provides a connecting structure of a lightweight concrete prefabricated column and an assembly type building, and relates to the technical field of assembly type buildings, the connecting structure of the lightweight concrete prefabricated column comprises a first column body, a first plate body, a second column body, a second plate body and a connecting piece. The first plate body is sealed at one end of the first supporting piece, the second plate body is sealed at one end of the second supporting piece, and the second plate body and the first plate body are oppositely arranged. The connecting pieces are connected with the first plate body and the second plate body correspondingly, the opening directions of the multiple grouting sleeves all face the positioning columns, and each grouting sleeve is arranged on one positioning column in a sleeving mode and conducts grouting on the interior of the grouting sleeve. According to the connecting structure, the overall weight can be reduced, construction is convenient and fast, the first plate body and the second plate body play a role in isolation and protection, the damp-proof and corrosion-resistant performance is improved, the connecting structure is directly transported to a construction site to be installed, the joint strength is guaranteed, and then the construction efficiency and the construction quality of the connecting structure of the lightweight concrete prefabricated column are both considered.