30results about How to "Increase Section Height" patented technology

The invention discloses a highway and railway layered steel box beam. The highway and railway layered steel box beam comprises a box beam top board and a box beam bottom board, wherein the box beam bottom board is located below the middle portion of the box beam top board, a supporting structure is arranged between the box beam top board and the box beam bottom board and is of a truss-type box structure, edge webs which extend in the vertical direction are arranged at the two transverse ends of the box beam top board, an edge bottom board is arranged between the lower end of each edge web and the end portion of the same side of the box beam bottom board, and an inverted-trapezoidal box cavity is defined by the box beam top board, the edge webs, the edge bottom boards and the box beam bottom board. On the basis of a conventional steel box beam, the height of the section is increased, and a railway can be arranged inside the steel box beam; the supporting structure between the box beam top board and the box beam bottom board is of the truss-type box structure, and compared with an integrated type steel box beam, the highway and railway layered steel box beam saves rolled steel.

The invention discloses a highway and railway layered steel box beam. The highway and railway layered steel box beam comprises a box beam top board and a box beam bottom board, wherein the box beam bottom board is located below the middle portion of the box beam top board, a supporting structure is arranged between the box beam top board and the box beam bottom board and is of a truss-type box structure, edge webs which extend in the vertical direction are arranged at the two transverse ends of the box beam top board, an edge bottom board is arranged between the lower end of each edge web and the end portion of the same side of the box beam bottom board, and an inverted-trapezoidal box cavity is defined by the box beam top board, the edge webs, the edge bottom boards and the box beam bottom board. On the basis of a conventional steel box beam, the height of the section is increased, and a railway can be arranged inside the steel box beam; the supporting structure between the box beam top board and the box beam bottom board is of the truss-type box structure, and compared with an integrated type steel box beam, the highway and railway layered steel box beam saves rolled steel.

The invention discloses a combination of supplementary piles and enlarged abutment caps to strengthen the existing abutment structure, which is characterized in that it includes the original abutment abutment cap, the newly added abutment cap part, the original pile foundation, the newly added pile foundation, and the original ear-back wall , new ear-back wall, new block, and new soil retaining board; the newly added pile foundation is set on the outside and rear of the original pile foundation, and the newly added pile foundation is connected to the original pile foundation through the newly added platform cap; the top of the original platform cap is provided with Grouting holes and vent holes, planting bars, new blocks and new retaining plates; the newly added abutment cap is connected to the original abutment cap through planting bars. The invention fully utilizes the structure of the original pile foundation, connects the newly added part with the original abutment structure by implanting steel bars, strengthens the cooperative bearing capacity of the old and new structures, improves the overall bearing capacity of the bridge, and has good economic and technical benefits . The invention also discloses a construction method for reinforcing the built bridge abutment structure by combining supplementary piles and enlarged abutment caps.

The invention relates to a steel box-concrete composite girder for a long-span cable-stayed bridge and a construction method, belonging to the technical field of bridge engineering. The steel box-concrete composite girder comprises a single-box multi-chamber streamlined flat steel box beam and is characterized by also comprising side webs and shear connectors, wherein the side webs are positioned at the two sides of the single-box multi-chamber streamlined flat steel box beam so as to encircle a closed chamber; and the shear connectors are welded at the inner side of the chamber, and concrete is poured. The concrete in the steel box beam provided by the invention has large axial rigidity and high carrying capacity, can bear the huge axial force and bending moment in a longitudinal bridge direction, obviously reduces the thickness of steel plates of the steel box beam, the quantity of stiffening ribs, transverse diaphragms and welded seams, the steel consumption and the like, reduces the cross section height, and has obvious economic benefits.

The invention belongs to the field of building structure reinforcement, and particularly relates to a method for reinforcing a reinforced concrete floor with a profiled steel sheet. By using the reinforced concrete floor, wet operation is avoided, a smaller architecture net space is occupied, and the construction period is short; Because peaks and troughs of the cross section of the profiled steelsheet are alternately expanded, the inertia moment of the section of the profiled steel sheet is relatively large, and the rigidity of the reinforced concrete floor can be improved; the troughs of the reinforced profiled steel sheet are equivalent to longitudinal beams, so, the section height of the reinforced concrete floor can be increased, and bearing capacity of the reinforced concrete floorcan be improved; the profiled steel sheet has good seismic performance, and hence, ductility performance and seismic energy dissipation performance of the reinforced concrete floor can be improved.

The invention discloses a bridge structure reinforcing mold and reinforcing method. The bridge structure reinforcing mold comprises a U-shaped mold shell, a top plate, inflatable cushions and an inflator pump; a plurality of inflatable cushions are distributed on a bottom plate in the U-shaped mold shell; each inflatable cushion is connected with the inflator pump via an air tube; the top plate is placed on the inflatable cushions; a plurality of inflatable tube through holes are formed in a bottom plate of the U-shaped mold shell; a group of bolt mounting holes is formed in the periphery of the opening of the U-shaped mold shell; and through high-strength bolts, the U-shaped mold shell is fixed on the bottom surface of a bridge structure to be reinforced. The bridge structure reinforcing method comprises the steps of firstly, fixedly mounting one or more uniformly distributed prestressed fiberboards on the bottom surface of the bridge structure to be reinforced, and secondly, laying and covering reinforcing concrete on the prestressed fiberboards by using the bridge structure reinforcing mold. The bridge structure reinforcing mold and reinforcing method have the advantages that advantages of a prestressed reinforcing technology and a section-enlarging reinforcing technology can be brought into full play by combining the prestressed reinforcing technology and the section-enlarging reinforcing technology; and the rigidity improving effect and bearing force increasing effect of the bridge structure are obvious.

The invention belongs to the technical field of bridge and road construction and particularly relates to a method for transforming a rigid-framed arch bridge deck slab without supports. The method comprises the steps as follows: (a) dismounting an original bridge deck slab, breaking a bump on the top of an arch rib and exposing a stirrup in the bump; (b) mounting angle steel and a triangular support in proper positions on the side surface of the arch rib, placing square wood bars on the angle steel and the triangular support, placing bridge deck slab bottom molds above the square wood bars, and arranging cushion blocks between the bottom molds and the square wood bars; (c) laying rebars on the bottom molds, and pouring bridge deck slab concrete; (d) dismounting formworks and a support system after the bridge deck slab concrete reaches designed strength. The transforming method has the advantages that the supports are not needed to be erected from the riverbed bottom surface, construction is convenient, the transformation integrity of the rigid-framed arch bridge deck slab is good and the like, the defects that large-span rigid-framed arch bridge deck slab supports are difficult to erect and are even incapable of being erected during transformation are overcome, the bearing performance of a bridge can be improved, and the integrity of the bridge deck slab is improved.