350results about "Portable bridge" patented technology

A vertically-adjustable gantry assembly installation adapted for removal or placement of a train bridge-span of the type which spans and is supported by two piers, comprises a gantry assembly positioned on load-bearing first ground-support locations, the gantry assembly comprising a gantry and a ground-engaging vertical support and lift system, the vertical support and lift system adapted for supporting a combined weight of the gantry and a bridge span in at least one operational vertical position above respective bridge span support-surfaces of the piers including a position corresponding to a disembarking plane in which the leg portions are extended from a stowed position to an extent at least sufficient for the gantry assembly to self-liftoff the pre-installation conveyance system onto the first ground-support locations to effect the gantry assembly installation.

A removable multipurpose running board assembly for a motor vehicle wherein the running board is of extruded material provided with a pair of transverse sockets to receive support pins. A pair of clamps securable to the vehicle provide anchor ports to which the support pins are mounted to removably retain a running board in position when the support pins are located in the sockets.

A hand rail to post connector assembly for use with a modular ramp. The assembly includes a post cap configured for mounting to a post, a saddle that is received by a slot in the post cap, and a rail insert that is secured to the saddle. The post cap includes a support surface configured to support a hand rail, and the post cap substantially constrains the saddle from moving vertically. The rail insert has a clamping surface that engages an inner surface of the hand rail for clamping the hand rail between it and the saddle.

An apparatus for making temporary road mats characterized by multiple layers of mutually perpendicular elongated timbers having an array of vertical intersections aligned in lateral rows. The apparatus includes a gang drill that moves relative to a roughly assembled mat for sequentially drilling the lateral rows of intersections.

The invention relates to a traffic installation having at least two traffic routes arranged one above the other, which each comprise at least one traffic area, which traffic area is completely enclosed at least over a certain length, the enclosure having at least one transparent element allowing a view out of the enclosure.

A modular pedestrian bridge (10) is disclosed. In its simplest form, the bridge (10) includes: a span module (12) having a tunnel (14) sufficient to allow pedestrians to travel through the tunnel (14), the tunnel (14) being defined by a floor (16) and a top (18), defining a height (20), sides (22) defining a width (24) and upper and lower connectors (26) and (28), a tower module (30), a stair assembly (32), the tunnel (14) having sufficient dimensions to allow the tower module (30) to be telescopically fit into the tunnel (14) and the span module (12) being adapted to fit on a chassis or flat bed truck of a vehicle. The bridge (10) is configured to simplify assembly and disassembly and is adapted to fit on a chassis, flat bed truck and the like. The span module (12) is dimensioned, such that it does not have special freight requirements, possibly triggering state and federal escort laws for extra wide or long loads.

A trailer hitch ramp assembly has a first ramp member secured to the trailer hitch and a second ramp member pivotally secured to the first. The second ramp member is foldable onto the first member to define a traveling position. When unfolded, the second ramp member can be positioned in an incline attitude along a side of the vehicle providing a ramp bridging the ground surface and the boat trailer so that a boater does not have to wade through water when launching a boat from a trailer. The ramp assembly includes a detachable wheel at the end of the second ramp assembly and a platform mounted to the boat trailer effective for supporting a human.

The long span bridge erecting apparatus and process belongs to the field of traffic technology, and is especially suitable for constructing military long span bridge in wartime. The long span bridge erecting apparatus consists of chassis, arm folding crane, erecting platform, leading-in girder unit, leading-in girder sheath, movable stand, chassis frame and bridge section. The long span bridge erecting apparatus has lowered erecting height, convenient transportation, composite structure and high reliability. The present invention has short construction period, low operation plane and relatively simple construction and other advantages.

A bridge for long, deep water crossings is supported between spans by narrow, transverse, semi-submersible pontoons. The pontoons are oriented to present minimal cross section to tidal currents under the bridge. The pontoons are pivotally attached to the bridge allowing them to be turned a few degrees right or left as tidal currents change. During fabrication, a module of bridge deck / roadway can be assembled for transport upon each pontoon deck. After remote fabrication two or more complete bridge modules can be linked pontoon-to-pontoon into a seaworthy vessel that can be towed to the erection site. At site the roadway modules are rotated transverse to the pontoon, elevated to final position and joined to other modules, completing the bridge.

A light-weight temporary bridge system includes a weight balance structure-module, constructed at a first abutment; a bridge tower structure-module, including a bottom part fixed to the weight balance structure-module and a top part coupled to the weight balance structure-module via at least one first cable; and a crossing structure-module constructed between the first abutment and a second abutment, coupled to the weight balance structure-module and coupled to the top part of the bridge tower structure-module via at least one second cable.

The invention discloses a rapidly expandable arch bridge based on shear-type hinge units. The rapidly expandable arch bridge comprises a body arch structure and an inverted V-shaped folding bridge deck arranged on the upper side of the body arch structure, the body arch structure comprises M parallelly expandable arch units, M is not less than 2, the expandable arch units comprise N groups of shear-type hinge units and drawing ropes, the shear-type hinge units are sequentially connected along span direction of a bridge, and the head shear-type hinge unit and the tail shear-type hinge unit are connected through the drawing ropes. According to the rapidly expandable arch bridge, the bridge deck is bent, a body arch is pressured, and lower drawing ropes are drawn, so that a stable self-balance system is formed. The rapidly expandable arch bridge is provided with a rapidly expandable structure system of a single degree of freedom, reasonable in construction and transmission force, attractive in shape, conveniently and rapidly folded and unfolded or transferred and particularly applicable to temporary and semi-permanent or functional bridges and can be reused and made of metal materials such as aluminum alloys and steel strands and the like, and a driving mode is simple.

Provided is a foldable arch type bridge. According to the bridge form, the foldable arch type bridge is a bowstring arch bridge, and comprises two basic structural forms with an arch and a beam combined, and the arch and beam bear loads jointly; a self-balance system is formed through the combined action that the beam bears bending force while the arch bears pressure, a support at the arch end is prevented from generating horizontal thrust, and the horizontal thrust is converted to tension borne by a rod string; and the arch and the string are fixedly connected by being connected with the two ends of a closed framework in a hinged mode. The developable arch type bridge is more reasonable in outline stress and high in material utilization rate. The structural unfolding speed of the developable arch type bridge is far higher than the bridge assembling speed. Construction is convenient and rapid without assistance by large-sized machines. The developable arch type bridge is particularly suitable for solving the problems caused to rescue work by road and bridge destruction and traffic interruption in earthquake disaster regions, and enables vehicles and supplies to move across obstacles fast in emergency circumstances.

The invention discloses a gravity self-balance type emergency rehabilitation rapid self-erection bridge. The gravity self-balance type emergency rehabilitation rapid self-erection bridge comprises a bridge body mechanism, an erecting mechanism and a vehicle mounting mechanism. The bridge body mechanism comprises at least two folding bridge bodies and a middle connecting device. A rail is arranged on the upper portion of one bridge body, and rollers matched with the rail are arranged at the two ends of the rest of bridges, and the middle connecting device is arranged between two erected bridge bodies and is used for connecting the bridge bodies on the two sides. The erecting mechanism is used for erecting the bridge bodies step by step; the vehicle mounting mechanism is used for transporting and storing the bridge body mechanism and the erecting mechanism and can provide weights for the erecting mechanism in the erecting process; and the erecting mechanism comprises a foldable lifting frame and a winch mechanism. By the adoption of the structure, the bridge bodies can be mounted step by step and one by one, and the mounted bridge bodies can provide supporting for the subsequently-mounted bridge bodies; the requirement for the weights is reduced, and therefore common vehicles can be adopted in the vehicle mounting mechanism. Meanwhile, mounting is rapid and convenient, and the gravity self-balance type emergency rehabilitation rapid self-erection bridge is suitable for the heavy bridge bodies.

The invention discloses a folding emergency bridge and a using method thereof. The folding emergency bridge comprises a bridge main body part, the bridge main body part comprises a base supported on the ground, and a stand column is hinged to the base. A hydraulic cylinder used for driving the stand column and the base to rotate is installed between the stand column and the base. A plurality of sections of foldable bridge plate surfaces are hinged to the other side wall of the stand column through pin shafts; and the bridge plate faces and the side wall of the stand column are connected in a hinged mode through lateral folding frameworks which are symmetrically arranged. Steel wire rope systems used for providing traction force are symmetrically fixed to the top of the stand column. One ofwinding drums of the steel wire rope system is matched with a plurality of guide wheels fixed to the top of the folding framework through a first roller steel wire rope, the tail end of the winding drum is connected to the tail end of the bridge deck, and the other winding drum of the steel wire rope system is connected with the first-section bridge deck of the bridge deck through a second rollersteel wire rope. The bridge is light in self weight and convenient to transport by various operation vehicles; and the connecting rod is flexible in structural design, high in erecting and retractingoperation efficiency, low in requirement for an operation site and high in automation degree.

The present invention is directed toward a novel moment resisting connection system, for use, but not limited to, with a pony-truss bridge system. The connection system comprises multi-hollow sections that can be, but are not limited to, extruded aluminum and a joint or node connector that can be casted, milled, forged or made by any other means.

A floor structure comprises a plurality of steel beams 4 arranged in parallel, each steel beam 4 including a web, an upper flange disposed at an upper end of the web, and a lower flange disposed at a lower end of the web, a floor surface being formed on the upper flange 2. The floor structure further includes displacement preventing spacers interposed between the upper flanges and / or lower flanges of the adjacent steel beams. Each displacement preventing spacer includes a load receiving part which is brought into engagement with the adjacent upper flanges and / or lower flanges to receive an active load incurred by the individual steel beams 4 so as to inhibit the steel beams 4 from displacing downward.

The invention puts forward a combined emergency bridge and an erection method thereof which are designed for solving the problems that in the prior art, the quick restoration on the traffics at the gap positions of highway subgrades and the derogative areas of subgrades is realized by way of building shortcuts, therefore, the restoration is restricted by terrain conditions and affected by secondary geological disasters, meanwhile, the restoration is long in time, time-consuming, labor-consuming and the like. The combined emergency bridge comprises cubic steel frames, triangular prism-shaped steel frames, bearing wire cables, fixing wire cables and road slabs. The combined emergency bridge and the erection method thereof have the following beneficial effects: the bearing wire cables and combined steel frames of the bridge constitute a statically indeterminate self-bearing structure system, horizontal pressures produced by the steel frames are transmitted to the ends of the bridge, and the loads of the triangular prism-shaped steel frames are balanced by the tension of the bearing wire cables; the steel frames of the combined emergency bridge provided by the invention can not be fabricated on site, and the fabrication of the steel frames can be standardized and serialized; and the erection method of the combined emergency bridge is simple without carrying out excessive treatments on disaster sites, therefore, the method has the characteristics of emergency, speediness and convenience.

An ornamental bridge kit includes a frame having a first and second side beams (10, 12) of a length that may fit within a shipping container. The frame further includes a plurality of transverse braces (16) spanning between the internal surface of the first side beam (10) and the internal surface of the second side beam (12). The frame also includes a plurality of lateral stiffeners (18) and at least one longitudinal stiffener (20) secured to the plurality of transverse braces (16). A plurality of boards or planks (52) may further be arranged transversely and extending from the first side beam (10) to the second side beam (12) and secured to the top edge of the first side beam (12).

The invention discloses a ready-package emergency bridge and a construction method for changing the same into a permanent bridge. The ready-package emergency bridge comprises at least two longitudinal beams and bridge road steel plates, wherein the at least two longitudinal beams are parallelly laid; the bridge road steel plates are laid on the longitudinal beams and can limit horizontal and longitudinal freedom degrees; each longitudinal beam comprises longitudinal beam segments which are sequentially fixedly connected along a longitudinal direction; the horizontal longitudinal beams are fixedly connected through horizontal linkage; and the bridge road steel plates are laid on the longitudinal beams in segments along the longitudinal direction. The standard longitudinal beam segments can be combined into the longitudinal beams and the longitudinal beams and the standard bridge road steel plates are combined into a temporary bridge when accidents happen so that the bridge can be fast constructed after the accidents and the traffic of roads are restored within a shorter time to ensure that supplement and supply lifeline can be established in time or normal transportation can be restored after a disaster; in addition, after the emergency temporary bridge is open to traffic, the emergency temporary bridge can be changed into the permanent bridge without maintaining or reconstructing the accident bridge under the condition that the transportation is not obviously influenced, therefore period from the accident to the normal traffic of the road is obviously shortened, and manpower and material resource cost is saved.

The present invention relates to a waterfront wooden deck which is characterized in that the width of the handrail is extended for providing convenience for people walking near water. By attaching wooden decoration on an iron skeleton and a horizontal beam, the appearance of the wooden deck is improved, and a plurality of water guide structures for preventing the horizontal beam from being corroded by rain water, thereby improving durability of a bridge.