6results about How to "The structural force is clear" patented technology

The application discloses a dismantling and transporting integrated device and method for a main arch of an existing highway arch-shaped overbridge, and belongs to the technical field of bridge engineering construction. The dismantling and transporting integrated device comprises top-layer steel pipe supports, the top-layer steel pipe supports are two in number, the lower end of the top-layer steel pipe supports is connected with middle-layer steel pipe supports, one end of the middle-layer steel pipe supports, which is far away from the top-layer steel pipe supports, is connected with bottom-layer steel pipe supports, one end of the bottom-layer steel pipe supports, which is far away from the middle-layer steel pipe supports, is connected with a leveling steel plate, a self-propelled hydraulic module vehicle group is installed at the lower end of the leveling steel plate, the self-propelled hydraulic module vehicle group comprises a plurality of self-propelled hydraulic module vehicles, and a plurality of hydraulic winches are connected to one end of the top-layer steel pipe supports, which is far away from the middle-layer steel pipe supports. The whole device has simple structure, is convenient to process materials and assemble equipment, is high in reliability, strong in economy, and can be repeatedly used in similar arch-shaped overbridge dismantling projects of existing highways, and solves the problem that the traditional bridge dismantling mode cannot be used for batch flow construction.

The utility model discloses a four point of prefabricated concrete block's even load hoisting structure, including a plurality of groups fixed setting on the hoisting ring of prefabricated concrete component, every group hoisting ring at least includes two, and the inside of every group hoisting ring is provided with a rigid link, and the rigid link passes through all hoisting rings of this group, and the middle part of rigid link is fixedly connected with one end of steel wire rope, and the other end of a plurality of steel wire ropes is concentrated in hoisting equipment lifting point. Both ends of rigid link are fixedly provided with end anti -slip device. Through the even load design of " multiple hoisting ring + rigid link", effectively disperses the concentrated load, and the safe lifting weight of single lifting point is doubled, and successfully breaks through the technical bottleneck of the hoisting of hundred tons class concrete component. The rigid link ensures that a plurality of hoisting rings are uniformly and synchronously stressed, and the end anti -slip device completely eliminates the risk of rod disengagement, and the structure is stressed explicitly, and the safety redundancy is high.

The utility model provides an external prestressing reinforcing device for a simply supported beam of a railway, which comprises anchoring devices, a steering device and a prestressing tendon, and the anchoring devices are respectively arranged at two ends of the simply supported beam of the railway; the steering device is connected with the railway simply supported beam and located in the area between the two ends of the railway simply supported beam. The two ends of the prestressing tendon are connected with the anchoring devices respectively and arranged in the steering device in a penetrating mode. By the adoption of the external prestress reinforcing device for the railway simply-supported beam, the bearing capacity of the railway simply-supported beam can be remarkably improved, the bending resistance and the shearing resistance of the railway simply-supported beam can be improved, the external prestress reinforcing device is particularly suitable for a large-span bridge, and in addition, the external prestress reinforcing device for the railway simply-supported beam can be used for reinforcing the external prestress of the railway simply-supported beam. And the damage to the concrete during on-site construction can be reduced.

The invention discloses a foundation pit supporting passive area soil body reinforcing structure and a construction method thereof. The structure comprises fender posts arranged along the periphery of a foundation pit; the cement soil reinforcement area is located in the passive area soil body behind the fender posts, and the cement soil reinforcement area is formed by meshing a plurality of cement mixing piles; the high-pressure jet grouting pile reinforcing band is arranged between the fender post and the cement soil reinforcing area, and the high-pressure jet grouting pile reinforcing band fills a gap between the fender post and the cement soil reinforcing area, so that the fender post, the high-pressure jet grouting pile reinforcing band and the cement soil reinforcing area are in close contact, and a continuous force transmission system is formed. The gaps between the fender posts and the cement mixing piles are filled with the high-pressure jet grouting piles, force transmission is smooth, the passive area soil reinforcement effect is greatly improved, fender post deformation is effectively controlled, and the safety and stability of a foundation pit are guaranteed.

This invention provides a support structure for erecting large-span truss steel beams, comprising steel pipe piles, transverse connecting components, and longitudinal connecting components. Four steel pipe piles are evenly arranged in a rectangular pattern. Two longitudinal steel pipe piles are connected by longitudinal connecting components, and two transverse steel pipe piles are connected by transverse connecting components. Each longitudinal connecting component includes an upper longitudinal truss and a lower longitudinal truss, connected by diagonal braces. Two diagonal braces are arranged at the left and right ends of the longitudinal connecting component, forming a figure-eight shape. Each transverse connecting component includes an upper transverse truss and a lower transverse truss, with the upper transverse truss corresponding to the upper longitudinal truss and the lower transverse truss corresponding to the lower longitudinal truss. This invention provides a support structure for erecting large-span truss steel beams, which has the advantages of simple structure, easy construction, light weight, good applicability, and high structural stability.

This invention provides a recyclable prefabricated steel pile horizontal retaining plate foundation pit support system and its construction method, belonging to the field of building construction technology. It includes a vertical load-bearing system and a horizontal force transmission system. The vertical load-bearing system comprises several vertical H-shaped steel piles arranged sequentially to form a rectangle. The horizontal force transmission system comprises a rectangular frame-type capping beam and two walers. The capping beam is horizontally placed on the top of the inner side of the steel piles; the two walers are horizontally placed in the middle and lower middle parts of the inner side of the steel piles. The capping beam and walers are fixedly connected to the steel piles. This system achieves standardized design, rapid assembly and construction, reversible disassembly throughout the process, and efficient recycling of support components, fundamentally solving problems such as material waste, long construction cycles, and environmental unfriendliness. Simultaneously, modular design enhances the flexibility and adaptability of the support structure, significantly reducing the overall cost of foundation pit support and promoting the development of foundation pit engineering towards a green, low-carbon, and industrialized direction.