The invention relates to an assembled road steel bridge overall track erection and push system and process. The system is overall located in a flat field paved with concrete cushion blocks, steel rails are fixed to the concrete cushion blocks, two parallel tracks are formed, a horizontal rolling piece supporting frame with horizontal rolling pieces on the top is arranged on the same straight line as the tracks in the field and supports a girder of a steel bridge, traction wagons capable of moving along the steel rails are arranged on the steel rails, support the steel bridge, are controlled by an electric control cabinet to push the steel bridge to move forwards and have independent drive mechanisms, and the supporting center of the traction wagons is right the center of gravity of the steel bridge. The steel bridge can continue moving forwards along the tracks when driven by the traction wagons, in this way, assembling of the steel bridge can be directly competed on the land in a short time without the need of erecting a supporting frame or a concrete supporting tower in a riverway; furthermore, safety is high when the steel bridge is assembled on the land, and the assembled road steel bridge overall track erection and push system is particularly suitable for breaking through rescue roads during emergency rescue; it is not needed that supporting frames are fixed in riverways, erection efficiency is high, erection is convenient to carry out, and influence caused by the environment is small.

Assembled road steel bridge overall track erection and push system and process

The invention provides flexible equipment for steel structure bridge manufacturing and a dismounting method for the flexible equipment The flexible equipment comprises bogie frames arranged under a bridge body and used for supporting the bridge body; each bogie frame is fixedly connected with a lifting mechanism; upper ends of the lifting mechanisms are fixedly connected with the bridge body; a plurality of bogie frames are arranged below the bridge body; and every two adjacent bogie frames are connected through a fixed connecting rod The flexible equipment is simple in structure; through an assembly way of the bogie frames and guide rails, an integrated assembly jig is formed; and the flexible equipment for steel structure bridge manufacturing which is quick and convenient in installation process, can be repeatedly used, can be flexibly assembled and can be conveniently operated not only is capable of reducing tooling cost during steel structure bridge manufacturing but also is capable of shortening building time of an existing assembly jig and largely reducing processes for manufacturing the assembly jig, and therefore various kinds of environmental pollution are greatly reduced

Flexible equipment for steel structure bridge manufacturing and dismounting method for flexible equipment

The invention belongs to the technical field of bridges, and particularly relates to an erection device for an assembly type highway steel bridge. The erection device comprises a fixed supporting seat and a track system which is hinged with the fixed supporting seat, wherein a first bearing rocking roller is hinged with a top part of the fixed supporting seat, the track system is provided with a bridge pushing cart, the bridge pushing cart is connected with the track system in a rolling way through cart wheels in the lower part, a second bearing rocking roller with the same structure as the first bearing rocking roller is hinged with the top part of the bridge pushing cart, a bridge pushing oil cylinder is hinged between the bridge pushing cart and the fixed supporting seat, the bridge pushing cart can make reciprocating movement along the track system under the control of the bridge pushing oil cylinder, and the first bearing rocking roller and the second bearing rocking roller are further provided with limit rods which can be upwards and downwards flexible. The first bearing rocking roller and the second bearing rocking roller are further respectively provided with a plurality of two-stage bearing rocking rollers. An oil cylinder supporting seat is further arranged in the middle part of the bridge pushing oil cylinder. The erection device can be widely applied to the erection of various assembly type bridges, and the safety is improved.

Erection device for assembly type highway steel bridge

The invention discloses a roller-type beam body incremental launching construction device. The roller-type beam body incremental launching construction device comprises a lower supporting structure and an upper supporting structure located above the lower supporting structure, the lower supporting structure is used for being connected to a base, the lower supporting structure and the upper supporting structure are hinged to a main hinge shaft, one or more groups of roller trains are arranged on the upper part of the upper supporting structure, each group of supporting roller trains and the upper supporting structure are hinged to an auxiliary hinge shaft, the upper supporting structure and the rotating direction of all supporting roller trains are all arranged in the bridging direction, all the supporting roller trains are used for supporting the beam body, a limiting structure is further included, and the limiting structure is used for limiting the beam body to displace in the transverse direction of the bridge. According to the roller-type beam body incremental launching construction device, the beam bottom with different linear changes is adapted through freely rotating hinge axis, the roller-type beam body incremental launching construction device can be used for the incremental launching construction of traditional equal-height beams or beams with flush beam bottoms, and can also be suitable for the incremental launching construction of variable-height beams, in the incremental launching process, the rolling friction resistance is mainly overcome to do work, the difficulty of the incremental launching construction can be lowered, the incremental launching speed is accelerated, and resources are saved.

Roller-type beam body incremental launching construction device

The invention relates to an FRP rib plastic hinge connector for a concrete structure. The FRP rib plastic hinge connector for the concrete structure comprises FRP ribs at both ends, and a stainless steel connecting rod in the middle, wherein the FRP ribs at both ends are respectively connected with the stainless steel connecting rod in the middle through stainless steel sleeves; the FRP ribs and the stainless steel sleeves are connected through adhesives which can ensure that FRP ribs are not pulled out before the FRP ribs are pulled to be damaged; the cross section of each stainless steel sleeve is cylindrical, a tapered groove which is mechanically connected with the stainless steel connecting rod through taper threads is formed in one end of each stainless steel sleeve, and a circular groove which is adhered to the corresponding FRP rib is formed in the other end of each stainless steel sleeve. The two end parts of the stainless steel connecting rod are tapered, and threads matched with the tapered grooves of the stainless steel sleeves are formed in the tapered end parts. According to the invention, the ductility is introduced into the FRP rib concrete structure, so that the corrosion resistance of the structure is improved, and a large quantity of energy can be consumed in an earthquake. With the ductility of the structure and the energy consuming ability, the seismic performance of the FRP rib concrete structure can be greatly improved.

FRP bar plastic hinge connector for concrete structure

The utility model relates to an anchor device, in particular to an anchor device for an FRP (Fiber Reinforced Plastic) pipe and a metal bar The anchor device comprises an FRP pipe body and a metal bar body, wherein one end of the metal bar body is arranged in the FRP pipe body, the front end of the metal bar body is provided with a conical tip, the metal bar body is connected with the small end face of the conical tip, the surface of the metal bar body next to the conical tip is provided with an external thread, and a matched nut is arranged on the external thread; at least two clamping pieces are arranged between the FRP pipe body and the conical tip, the inner side surfaces of the clamping pieces are matched with the side surface of the conical tip, the outer side surface of the clamping pieces are matched with the inner surface of the FRP pipe body, and one end face of each clamping piece is in contact with the nut The clamping pieces are of two-layer structures, the inner layers are metal layers, and the outer layers are polyurethane layers The outer surface of the connecting part of the FRP pipe body and the metal bar body is wrapped with a steel jacket

Anchor device for FRP (Fiber Reinforced Plastic) pipe and metal bar

Self-adaptive landing leg

The utility model belongs to the technical field of bridges, and particularly to a building device of an assembled highway steel bridge. The building device of the assembled highway steel bridge comprises a fixed support and an orbit system hinged to the fixed support, wherein a first bearing roller is hinged to the top part of the fixed support; the orbit system is provided with a bridge pushing cart; the bridge pushing cart is connected to the orbit system through wheels at the lower part in a rolling manner; a second bearing roller which has the same structure as the first bearing roller is hinged to the top part of the bridge pushing cart; a bridge pushing cylinder is hinged between the bridge pushing cart and the fixed support; the bridge pushing cart can do reciprocating motion along the orbit system under the control of the bridge pushing cylinder; the first bearing roller and the second bearing roller are also provided with limiting blocks capable of expanding and shrinking up and down. The first bearing roller and the second bearing roller are also provided with multiple secondary bearing rollers. A cylinder support is also arranged in the middle of the bridge pushing cylinder. The building device of the assembled highway steel bridge can be widely applied to the building of various assembled bridges, and increases safety.

Building device of assembled highway steel bridge

The invention relates to an anchoring device, in particular to an anchoring device used between an FRP (Fiber Reinforced Plastic) pipe and a metal bar. The anchoring device comprises an FRP pipe body and a metal bar body, wherein one end of the metal bar body is arranged in the FRP pipe body, a circular truncated cone-shaped end is arranged at the front end of the metal bar body, the metal bar body is connected with a small end face of the circular truncated cone-shaped end, an external thread is arranged on the surface of the metal bar body, which is close to the circular truncated cone-shaped end, a nut is arranged to be matched with the external thread, at least two clamp sheets are arranged between the FRP pipe body and the circular truncated cone-shaped end, the inner surfaces of the clamp sheets are in full contact with the side of the circular truncated cone-shaped end, the outer surfaces of the clamp sheets are in full contact with the inner surface of the FRP pipe body, one end faces of the clamp sheets are in contact with the nut, each clamp sheet is of a two-layer structure consisting of an outer metal layer and an inner polyurethane layer, and the joint of the FRP pipe body and the metal bar body is wrapped with a steel sleeve.

Anchoring device used between FRP (Fiber Reinforced Plastic) pipe and metal bar

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