Abstract: A formwork system for a bridge pier configured to support loads associated with bridge pier construction with reduced, or being free of, anchors in the column.

Abstract: A hand tool for levelling screed, the hand tool comprises a main body and a screed-levelling member, the screed levelling member comprises a first portion and a second portion joined together at a vertex, the first and second portion being non-colinear or non-coplanar, wherein the first portion is secured to the main body, and the second portion is configured to level screed in use.

Abstract: A transition structure for bridging a structural joint between two structure parts of a structure is provided. The transition structure has at least two trusses mounted on the edges of the structure and at least one slat displaceably mounted thereon, wherein a primary sliding surface is arranged between at least one truss and at least one slat. The primary sliding surface has at least two partial sliding surfaces, which are each arranged in mutually angled sliding planes, the sliding planes meeting in a common line of intersection S which forms an axis of movement A along which the slat can move relative to the truss. At least one sliding plane is arranged at an oblique angle to a plane of movement B of the transition structure.

Abstract: Vehicle mounted grinding machines adaptable to ground contours have a vehicle mount configured to attach a housing body, including a grinding drum to a vehicle. The vehicle may include a pair of guides on opposing sides of a blade set of a grinding drum, where each of the pair of guides is horizontally aligned with the grinding drum. The housing body is configured to roll about a travel direction relative to the vehicle mount and the grinding machine includes an alignment motor configured to laterally translate the housing body relative to the vehicle mount and perpendicular to a travel direction.

Abstract: Example dock leveler apparatuses are disclosed. A dock leveler apparatus includes a curtain assembly that includes an upper curtain section and a lower curtain section. The curtain assembly is movable between a folded configuration and a pendant configuration. The curtain assembly having a longer length in the pendant configuration than in the folded configuration. A connector couples to the upper curtain section to a deck pivotally coupled to a base frame of a dock leveler. A releasable coupling between the upper curtain section and the lower curtain section. The releasable coupling is to removably couple the lower curtain section and the upper curtain section.

Abstract: A shield assembly is configured for use with the axle assembly of a compaction machine. The machine includes a ground-engaging device with a hub that defines a cavity and an inboard opening. The axle assembly comprises a spindle and a final drive, with a gap between them. The shield assembly includes a shield body mounted within the hub cavity, positioned above the spindle and final drive, and extending over the gap. This arrangement directs debris away from the gap and associated seals, reducing contamination and wear of axle components during operation in debris-laden environments.

Abstract: A floating tunnel shore connecting system, a floating tunnel and a floating tunnel construction method are disclosed, where the design method of the floating tunnel is to apply axial tension along one end or two ends of a tube body respectively; The floating tunnel shore connecting system comprises a joint section located at the end of the tube body, which can move along the axial direction and is connected with a tension device for applying axial tension; The floating tunnel comprises a tube body and a hollow cavity, wherein the tube body comprises a floating section and a shore connecting system at two ends, and both joint sections are provided with tension devices.

Abstract: An emergency response barrier is shown and described, the barrier having a frame with reinforcing bracing; two axles coupled to the frame with wheels attached thereto; a king pin coupled to the frame; wherein the frame is covered with a substantially planar skin that extends along the right and left sides of the frame, from a top of the frame down to a lower edge and covers a majority of the wheels on each side of the barrier; an impact attenuator coupling on the frame, having a vertical pin received in a bore disposed on an impact attenuator, and configured for rotation about the vertical axis of the pin; and a hydraulic cylinder connected between the frame and the impact attenuator, wherein retraction and extension of the hydraulic cylinder moves the impact attenuator through an arc of rotation about the vertical pin.

Abstract: A road paver includes: a head; a body including a front end and a tail end; a feeding device, disposed in the front end to convey polyurethane concrete, and the feeding device including a stirring device; a stone paving device, disposed on the tail end to spread crushed stone over a road, and the stone paving device including a stone feed bin carrying the crushed stone; and a concrete paving device, disposed between the feeding device and the stone paving device and connected to the stirring device, and used to spread the polyurethane concrete across the road.

Abstract: A block compactor equipped with a brake mechanism capable of securely locking rollers with a simple structure and stably maintaining a locked state and an unlocked state even when exposed to vibration. A brake pad is fixed to a lower end portion of a brake shaft and is configured to be rotatable together with the brake shaft between two rollers adjacent in the front and rear. By rotating a brake lever, the brake pad can be switched between an unlocked state in which the brake pad does not contact with the outer circumferential surfaces of the rollers, and the rollers are free to rotate, and a locked state in which the brake pad contacts with the outer circumferential surfaces of the rollers, and the rollers cannot rotate with the friction force.

Abstract: A gate assembly for a bicycle race start includes a plurality of gates, each mounted in a separate start position along a bar to move between a closed position and an open position. The bar is moveable between a first condition and a second condition. The assembly includes buttresses, each coupled to the bar to move between first positions and second positions in response to movement of the bar between the first condition and the second condition, wherein each buttress corresponds to a respective one of the gates. In the first condition of the bar, each buttress disables movement of the respective gate from the closed position to the open position. In the second condition of the bar, each buttress enables movement of the respective gate from the closed position to the open position.

Abstract: A dock leveler that fits within the pit of a loading dock. The dock leveler may have a rear leg bracket including a plurality of legs. The legs may be couplable to a bottom surface of the leg bracket and to a rear wall of the pit and may have a bottom portion attached to the bottom surface of the pit. The dock leveler may have a deck with a rear portion disposed adjacent the rear wall and supported by the rear leg bracket. The deck may be horizontal when in a stowed position. The dock leveler may also include a lift arm assembly extending from the bottom surface of the deck to the bottom surface of the pit and moveable along the bottom surface of the pit. The lift arm assembly may have a bottom portion movable independent of structure at the bottom portion of the plurality of legs.

Abstract: Heated surfaces for melting snow and ice are described herein. Some implementations include a highly integrated panel having upper and lower main structures secured to one another by an attachment through openings. Multiple panels can be connected together by means of load transfer devices on the upper and lower main structures. Other implementations include a melting panel with individual tiles, adhesives, structural materials, resistance-heating materials, electrically conductive materials, and thermally conductive materials. Power to the panels in the form of electricity may be provided via electrical wires and connectors, and further transmitted between the various parts of the panels. Still other implementations include embedded heating elements with adhesives, structural materials, resistance-heating materials, electrically conductive materials, and thermally conductive materials.

Abstract: A method for controlling a compactor machine can include inputting a compaction specification into a controller for compacting a work area; inputting a compaction target value into the controller; while compacting, evaluating an actual compaction value; and if the actual compaction value reaches the compaction target value, the controller being configured to turn off a vibratory system of the compactor machine while the compactor machine finishes any further passes over the work area as specified by the compaction specification.

Abstract: A fatigue-resistant flexible road structure that includes one or more sub-base structural support layers positioned over a compacted earth foundation. At least one of the sub-base structural support layers is an elastic sub-base layer for more completely distributing surface loads. The elastic sub-base layer includes aggregate, filler, binder, and recycled tire rubber. The recycled tire rubber is included in an amount of 3% to 5% by weight of the sum of aggregate, filler, and rubber. The elastic sub-base layer has a fatigue life at least 25 percent greater than a non-elastic sub-base layer without recycled rubber. Further, the elastic sub-base layer has a modulus of elasticity at least 25 percent lower than a non-elastic sub-base layer without recycled rubber.

Abstract: A slip form paving machine includes a machine frame, a plurality of ground engaging wheels or tracks, and front and rear height adjustable lifting columns, the lifting columns being adjustable to adjust a height of the machine frame relative to a ground surface. A slip form mold is supported from the machine frame. A front height sensor configured to detect a distance of the machine frame from the ground surface ahead of the concrete slab and generate a front height signal. A rear height sensor is configured to detect a distance of the machine frame from an upper surface of the concrete slab and generate a rear height signal. A controller is configured to receive the front and rear height signals and to determine a thickness of the concrete slab based at least in part on the front and rear height signals.

Abstract: A method and apparatus for deploying a tubular body onto a surface. The apparatus includes a main body movable in an advancing direction. The apparatus includes a deployment mechanism that deploys a tubular body directly onto a surface. The apparatus includes at least one container that stores an uncured protectant. The container is mounted on the main body. The apparatus may include a second container that stores a second protectant. The second protectant is different than the uncured protectant. The apparatus includes at least one curing device, which can cure the uncured protectant after the uncured protectant is applied to surface.

Abstract: Trafficked pavement substrates utilize markings to segregate traffic (e.g., divide lanes traveling in the same direction, divide sides of the road traveling in opposite directions). A dry polymer modified cement mixture may be used to provide the markings. The dry polymer modified cement mixture is prepared by mixing a dry polymer modified cement blend (ordinary Portland cement, aggregate and polymer powders) with water. The location of the lines is identified, and the dry polymer modified cement mixture is applied onto the identified areas as a thin layer. The dry polymer modified cement blend may include polymers to provide colored markings. Glass beads may be embedded into the dry polymer modified mixture before it cures to retroreflect light shined thereon. The trafficked pavement substrate may have troughs formed therein and the dry polymer modified cement markings may be formed therewithin so that the markings are flush.

Abstract: A dock leveler with a deck hinge shaped to fit in the pit of a loading dock. The dock leveler may have a rear leg bracket including a plurality of legs couplable to a bottom surface and a rear wall of the pit. The leg bracket may be positioned directly adjacent the rear wall and may include a plurality of brackets having an upwardly facing opening configured to receive a cylindrical shaft. The dock leveler may also comprise a deck that may have a rear portion shaped to fit over the cylindrical shaft and located adjacent the rear wall. The cylindrical shaft may be sized to fit within the plurality of brackets such that the rear portion of the deck and the shaft may be disposed directly above the legs of the leg bracket.

Abstract: Disclosed is a grain cart having an inverted V-shaped ridge on top of the cover of the flow gate system to reduce the grain load on the blades and the force required to move them. The ridge includes supports for a walkway that provides safety to cleaning, inspection and maintenance personnel for mechanisms at the bottom of the hopper, in particular the sweep auger and the flow gate system, without affecting the unloading rate. Such supports include a series of inverted V-shaped plates placed on edge to reduce the obstruction to the passage of grains, the plates having a horizontal upper web that forms a non-slip surface for the operator to walk on the walkway. The ridge with walkway only occupies the central portion of the ridge, leaving a free area towards the sides that allows the free passage of grains and pellets of compacted wet grain during unloading.