An intelligent vehicle capturing apparatus for a high-pier bridge includes: a double-layer metal protective net; and a support unit and an actuation unit connected to the double-layer metal protective net. The double-layer metal protective net is mounted to a backside of the high-pier bridge through the support unit. The actuation unit includes a hydraulic link mechanism. The hydraulic link mechanism is connected to one end of the double-layer metal protective net. The hydraulic link mechanism is moved to unwind the double-layer metal protective net on the backside of the high-pier bridge to capture a vehicle. In this way, the apparatus stops and buffers a vehicle that is about to rush out of a high-pier bridge.

An intelligent vehicle capturing apparatus for a high-pier bridge includes: a double-layer metal protective net; and a support unit and an actuation unit connected to the double-layer metal protective net. The double-layer metal protective net is mounted to a backside of the high-pier bridge through the support unit. The actuation unit includes a hydraulic link mechanism. The hydraulic link mechanism is connected to one end of the double-layer metal protective net. The hydraulic link mechanism is moved to unwind the double-layer metal protective net on the backside of the high-pier bridge to capture a vehicle. In this way, the apparatus stops and buffers a vehicle that is about to rush out of a high-pier bridge.

A self alignment structure for joining extruded members. The self-aligning structure includes one or more decking members including an upper panel and a lower panel connected by webbing members. One side of the decking member has a void space between the upper panel and lower panel and another side the decking member may have a vertical webbing member between the upper panel and the lower panel. The self aligning structure further includes an upper shelf and lower shelf, each shelf extending horizontally relative to the vertical webbing member. The shelves being operable to align a neighboring decking member, forming abutment joints in preparation for a friction stir welding process.

Folded plate girders can be connected end to end to form a cambered girder, wherein a connector system including a peripheral connecting flange secures adjacent girders in series at the desired camber arc or angle.

Folded plate girders can be connected end to end to form a cambered girder, wherein a connector system including a peripheral connecting flange secures adjacent girders in series at the desired camber arc or angle.

A method of producing a precast concrete bridge and headwall assembly including casting a reinforced concrete bridge unit having a top wall connecting opposite side walls; positioning the bridge unit with a first side supported by a horizontal casting surface, wherein the top wall is positioned adjacent a framing unit for the headwall; forming a precast concrete headwall on the casting surface adjacent the top wall with a series of earth anchors at laterally spaced intervals along the top wall between the side walls, each earth anchor formed with: a) a body member extending outward from the headwall to the top wall; and b) a foot member extending laterally outward from the body member engaged on the top wall and including an upper surface generally parallel to the top wall; and removing the headwall and earth anchors as a unit from the bridge unit.

A cement screeding system in the form of a powered roller screed with a wet screed attachment. The wet screed attachment includes a wet screed shoe. A handle is rotationally isolated from the screed roller and is rigidly coupled to this wet screed shoe. As such, motion of this handle is transmitted to the wet screed shoe in a replicating fashion.

A scour protective device around piles with bidirectional flow power generation. A smooth water flow channel is formed by guide walls and baffle walls. A power generation device is placed at smallest section of the channel. The piles are wrapped by smooth normal distributional surfaces, and the water flow is divided to outsides of normal distributional surfaces. The guide walls at both ends are tangent to eliminate downflow of the incident flow surface and horseshoe vortex around the piles, to avoid local scour. The tidal current is introduced into the channel to accelerate, and contraction panels are further compressed to realize hydropower generation and improve the utilization rate of tidal energy. The swing door makes hydraulic turbines rotate in the same direction when the tide rises and falls, realizing reliable bidirectional hydropower generation. The system provides efficient and environmentally friendly renewable power for bridge lighting, signal lights and vessels.

A scour protective device around piles with bidirectional flow power generation. A smooth water flow channel is formed by guide walls and baffle walls. A power generation device is placed at smallest section of the channel. The piles are wrapped by smooth normal distributional surfaces, and the water flow is divided to outsides of normal distributional surfaces. The guide walls at both ends are tangent to eliminate downflow of the incident flow surface and horseshoe vortex around the piles, to avoid local scour. The tidal current is introduced into the channel to accelerate, and contraction panels are further compressed to realize hydropower generation and improve the utilization rate of tidal energy. The swing door makes hydraulic turbines rotate in the same direction when the tide rises and falls, realizing reliable bidirectional hydropower generation. The system provides efficient and environmentally friendly renewable power for bridge lighting, signal lights and vessels.

A cable anchorage anchors a cable, for example a stay cable having multiple strands (50), against a longitudinal tension force. The anchor block (11) of the anchorage includes multiple channels, through which the strands (50) are individually threaded. Once in position and tensioned, the space around the strands (50) in the anchor block (11) is injected with a liquid, such as a polyurethane, which subsequently sets to form a tough elastic bedding material (51) within the anchor block (11). The elastic bedding material (51) has a durometer at 23 C. in the range 10 to 70 Shore, so as to form bedding cushion extending substantially around the strand (50) in the strand-channel (6) along a bedding region (54) of strand-channel (6), the bedding cushion reducing the bending stresses in the strand (50) by absorbing bending stresses along the bedding region (54).