36results about How to "Enhance horizontal linkages" patented technology

The invention relates to an assembly type hollow slab bridge adopting a bracket to replace a ribbet to transmit force, comprising a side slab and a middle slab of an assembly type hollow slab, wherein which the side slab and the middle slab of an assembly type hollow slab are mutually matched, a part or all of the top slab of the middle slab of the assembly type hollow slab extends towards one side to form a prominent bracket, and a combination part of a web slab and the top slab at the other side is provided with a bracket supporting surface matched with the bracket; and the top slab at one side of the side slab of the assembly type hollow slab is provided with a bracket matched with the bracket supporting surface of the middle slab of the assembly type hollow slab, or the combination part of the web slab and the top slab at one side of the side slab of the assembly type hollow slab is provided with a bracket supporting surface matched with the bracket of the middle slab of the assembly type hollow slab. The force transmission mode by adopting the bracket structure to transmit shearing force is clear, can be used for transmitting the shearing force between adjacent hollow slabs along the transverse direction of the bridge, improving the transverse connection between the assembly type hollow slabs and homogenizing the transverse load distribution and has the advantages of simple structure, mature design and calculation, no need of changing the bridge deck pavement and simple and convenient construction.

The invention discloses an electric power material prediction method. Material data is arranged, and then, a horoscop and an ARIMA (Autoregressive Integrated Moving Average) model are used for prediction. The electric power material is predicted, the horizontal linkage of the materials of a power grid company is reinforced, the construction of a smart supply chain is powerfully accelerated, a situation that materials are wasted and idle is lowered, material management efficiency is improved, the satisfaction of staff is improved, and valuable experience is provided for the material managementwork of China Southern power grids.

The invention belongs to the technical filed of construction of hollow slab bridges and particularly discloses an integrated assembly type hollow slab bridge and a construction method thereof. The integrated assembly type hollow slab bridge comprises two hollow slab edge plates which are oppositely arranged; hollow slab middle plates are laid between the two hollow slab edge plates continuously; tongue-and-groove seam concrete is arranged between the adjacent hollow slabs; a plurality of shear resistant blocks are arranged on the bilateral sides of the tongue-and-groove seam concrete along the slab height; the shear resistant blocks which are longitudinally continuous are groove-shaped or protruding-edge-shaped; the groove-shaped shear resistant blocks and the protruding-edge-shaped shear resistant blocks are alternately arranged when the number of the shear resistant blocks is more than two. The construction method comprises determining the number and the shape of the tongue-and-groove seam shear resistant blocks according to the design requirements; forming the grooves or the protruding edges which are longitudinally continuous on the inner sides of formworks which are arranged at the positions of tongue-and-groove seams along the slab height correspondingly; precasting the hollow slabs, hoisting the hollow slabs and performing cast-in-site construction on the tongue-and-groove seam concrete. According to the integrated assembly type hollow slab bridge and the construction method thereof, the practicability is strong, the construction is convenient, the shear resistance between the hollow slabs can be improved, and the integral mechanical performance of the hollow slab bridge can be improved.

The invention discloses a combined splay cable sleeve for double main cables of a suspension bridge. The combined splay cable sleeve comprises a sleeve body and a cover plate arranged on the sleeve body, wherein two cable troughs are arranged inside the sleeve body along the length direction of the sleeve body; the two cable troughs are in parallel arranged inside the sleeve body; each cable trough is arranged in the form of a curve in the horizontal direction of the sleeve body; the first cable trough is bent towards one side of the sleeve body; the second cable trough is bent towards the other side of the sleeve body; each cable trough is arranged in the form of a curve in the vertical direction of the sleeve body. According to the combined splay cable sleeve, due to the arrangement of the two cable troughs, the two main cables are connected together, so that the horizontal linkage of the main cables is reinforced; and simultaneously, the two main cables are anchored in a splay manner by the splay cable sleeve, so that the anchoring space of the main cables is increased.

A method for strengthening a truss arch bridge comprises the steps that (1) a cracked crack is grouted and sealed; (2) an original bridge concrete bridge deck pavement layer is chiseled and removed, an original truss arch bridge face plate is demounted, and a reinforced concrete overall bridge face plate with the thickness of 30cm is cast in situ again; (3) handrails are strengthened; (4) diaphragm plates are added; (5) the cross sections of arc rib components are enlarged, the cross sections of arch rib lower chords and the cross sections of web members are enlarged, steel bars are embedded on the arch rib side, a reinforcing mesh is assembled, and concrete is poured. According to the method for strengthening the truss arch bridge, transverse connection is increased, the integrity of the structure is improved, and the service life of bridges can be prolonged effectively.

The invention provides a hollow slab bridge structure enhancing transverse rigidity, and belongs to the technical field of bridge engineering. According to the technical method, a transverse bridge direction pre-stress rib pipeline is reserved on a bottom plate of each prefabricated plate. Full hinge joints are arranged between the prefabricated plates, and in other words, the height of the hinge joints is equal to that of the prefabricated plates. Meanwhile, the structure of the full hinge joints makes the interval between the bottoms of the prefabricated plates become larger, so that transverse pre-stress ribs are constructed smoothly. In addition, flat anchorage devices are adopted for the transverse pre-stress ribs, and the requirement for the thickness of the bottom plates of the prefabricated plates can be effectively lowered. By the application of the design method, compared with common hinge joints, the resistance to shearing of the hinge joints is better. In cooperation with the transverse pre-stress ribs, transverse linkage of a hollow slab bridge is further enhanced; meanwhile, the transverse pre-stress ribs can effectively balance transverse bending moment.

The invention relates to the technical field of bridge construction, in particular to a single-hole prefabricated hollow slab non-expansion-joint bridge and a construction method thereof. The bridge comprises abutments, prefabricated hollow slabs, end crossbeams and reinforcing steel bars connecting the prefabricated hollow slabs with the end crossbeams. Each abutment comprises an abutment cap anda pile foundation arranged below the abutment cap. Support cushion stones are arranged on the upper surfaces of the abutment caps. Rubber spacers are arranged on the upper surfaces of the support cushion stones. The prefabricated hollow slabs are arranged on the rubber spacers side by side in the transverse bridge direction and provided with end cap boards for covering cavities of the prefabricated hollow slabs, wherein the end cap boards are arranged at the ends of the prefabricated hollow slabs. The bridge has the beneficial effects that the structural design is simple, the construction method is simple and convenient to implement, the end crossbeams in the transverse bridge direction can be cast in place at the ends of the prefabricated hollow slabs so that transverse prestress can beapplied to the solid portions of mid-span portions of the prefabricated hollow slabs, the transverse relation between the prefabricated hollow slabs is reinforced, and the integrity of the whole bridge is improved.

The invention discloses a hinge joint reinforcing and maintaining method and a reinforcing and maintaining device. The hinge joint reinforcing and maintaining method comprises the following steps that1, forming a notch in the position of a hinge joint; 2, drilling a vertical through hole in the hinge joint; 3, arranging an upper anchoring plate at the notch, a lower anchoring plate is arranged atthe position, corresponding to the notch, below the plate beam, arranging a counter pull rod between the upper anchoring plate and the lower anchoring plate, the counter pull rod penetrates through the upper anchoring plate and the lower anchoring plate and is arranged in the vertical through hole, and then fastening the counter pull rod, the upper anchoring plate and the lower anchoring plate; 4, repairing the notch; 5, sealing the bottom of the hinge joint; and 6, injecting glue. The reinforcing maintenance device is additionally arranged, so that the transverse connection between the platebeams is enhanced, the stress state of the single beam is weakened, the vibration of the beam plate is avoided, and the cracking and discretization of the crack repairing adhesive are avoided.

The invention belongs to the technical field of bridge building and construction and discloses a truss supporting and reinforcing method for a pile type bridge abutment. The pile type bridge abutment comprises bridge abutment foundation piles and an abutment capping arranged on the bridge abutment foundation piles. The truss supporting and reinforcing method comprises the following steps: a, digging a revetment in front of the abutment, forming grooves, and arranging new foundation piles in the grooves; b, connecting the upper parts of all of the new foundation piles by a transverse connecting beam; c, constructing so as to form diagonally braced skeletons and longitudinal connecting beam skeletons; d, forming longitudinal connecting beams and diagonal bracings; and e, filling the grooves formed in the step a with soil so as to fill notches of the revetments in front of the abutment. By combining the structural characteristics of the pile type bridge abutment, the problems that the bearing capability of the pile type bridge abutment is low, the push resisting rigidity of the bridge abutment is small, the bridge abutment easily tilts towards the river center side and the piles (pillars) easily crack are solved. When the bearing capability of the foundation piles is improved, the push resisting rigidity of the bridge abutment is greatly enhanced, and the stability of the bridge abutment is improved.

The invention discloses a high-polymer grouting reinforcement anti-settlement widened roadbed, which is characterized in that a geotechnical pipe network is installed; the geotechnical pipe network is a rectangular grid which is formed by PVC (polyvinyl chloride) pipes in array distribution; the PVC pipes in the rectangular grid communicate with each other; grouting holes and exhaust holes which upwards and convexly extend, and slurry passing holes which downwards and convexly extend are formed in the geotechnical pipe network; the geotechnical pipe network is laid in a soil filling layer to form a soil filling layer geotechnical pipe network; high-polymer slurry is injected into the soil filling layer geotechnical pipe network through the grouting holes to form a soil filling layer grouting geotechnical pipe network; the high-polymer slurry is injected into vertical column holes in the soil filling layer through the slurry passing holes to form vertical reinforcing columns. The transverse connection of new and old roadbeds is enhanced; the differential settlement is effectively controlled; the combination of new and old roadbeds is more stable and firmer; sliding collapse cannot easily occur.

The invention relates to the technical field of bridge reinforcement, in particular to a method for reinforcing a hollow plate girder bridge by adopting corrugated steel plates and UHPC, which is characterized by comprising the following steps: treating the concrete surface of an original hollow plate girder bridge bottom plate (1), removing an original steel bar protective layer, and exposing steel bars (5) of an original structure; a corrugated steel plate (3) is prepared, welding studs (4) are arranged on the corrugated steel plate (3), the welding studs and reinforcing steel bars (5) of anoriginal structure are welded together, and then UHPC (2) is poured, so that the corrugated steel plate (3) and a hollow plate girder bridge bottom plate (1) are formed into a whole. The advantages of the corrugated steel plates (3) and the UHPC (2) are fully utilized and combined to be well used for reinforcing the hollow plate girder bridge, so that the hollow plate girder can better work cooperatively, the transverse integrity of the hollow plate girder bridge is enhanced, the service life of the hollow plate girder bridge is prolonged, the bearing capacity of the existing hollow plate girder bridge is enhanced, and the hollow plate girder bridge has wide application prospects.