53results about How to "Improve structural ductility" patented technology

The invention discloses an oblique pillar structure for a natural ventilation cooling tower and a construction method thereof. The structure includes a slanted strut structure, wherein the slanted strut structure consists of a plurality of strut frames interconnected to form a ring structure, and the strut frame is a steel pipe-concrete composite structure composed of steel pipes and concrete filled in the steel pipes; the strut frame includes a ring beam , piers and pillars, wherein the top of the pillars is connected to the ring beam, and the bottom end is connected to the piers; the pillars are X-shaped pillars or V-shaped pillars. The construction method is that the concrete in the inclined pillars and the concrete in the ring beam of the steel tube-concrete composite structure are poured from the bottom, and the one-time or segmented jacking method is poured, and the segmented ring beams are assembled into an integral ring beam by welding. The invention has the advantages of small cross-sectional size of the inclined pillar, good structural ductility, fast construction speed, long service life, relatively cheap construction cost of the whole tower, easy and low maintenance cost in the later period, and the like.

The invention relates to a combined reinforcement continuous wall and belongs to the technical field of foundation pit support in civil engineering. The combined reinforcement continuous wall can replace a concrete underground continuous wall support mode and a bored concrete pile support mode. The combined reinforcement continuous wall is composed of vertical reinforcements, connection bodies, multifunctional crowns, inner charged materials and outer auxiliary materials. Each vertical reinforcement is composed of a pipe body or formed after the pipe body is combined with a linear body, wherein the linear body is located in the pipe body. Each connecting body is composed of a horizontal component or a vertical component or an inclined component or a plate provided with holes. The crowns are located on the tops of the vertical reinforcements and can be assembled, detached and repeatedly used. After the connecting bodies and the crowns are connected with the vertical reinforcements, a combined reinforcement is formed. The inner charged materials are located in the pipe bodies. The outer auxiliary materials are located outside the pipe bodies. The invention further relates to a construction method of the combined reinforcement continuous wall. When applied to foundation pit support, the combined reinforcement continuous wall and a construction method of the combined reinforcement continuous wall have the advantages that cost can be reduced, the work efficiency can be improved, the safety can be improved, and environmental friendliness can be achieved.

The invention relates to geotechnical engineering, in particular to a large-dimension steel and concrete combined hollow anti-slide pile and a construction method thereof. The large-dimension steel and concrete combined hollow anti-slide pile comprises a plurality of pile sections which form a square framework by virtue of steel products, wherein concrete covers the inner side and the outer side of the square framework; the steel products are exposed from the upper end and the lower end of the concrete at the inner side; the pile sections are stacked up and down; a connecting point is formed between the steel products of upper and lower adjacent pile sections; and the connecting point is provided with a secondary concrete layer. The large-dimension steel and concrete combined hollow anti-slide pile provided by the invention is mounted in stages in a hole forming process, the mounted pile sections can be used as a protective structure, and are also used as one part of an anti-slide engineering pile, so that the construction speed is shortened, and the materials are saved; and the large-dimension steel and concrete combined hollow anti-slide pile has greater bending rigidity and better structure ductility, so that greater anti-slide bearing capacity can be obtained when the wall thickness is relatively small.