Abstract: A vibration clamp assembly for clamping a pipe to a support, the assembly comprising: an inner clamp arranged to encircle and engage the pipe; an outer clamp arranged to encircle the inner clamp and mount to said support; a plurality of damping blocks fixed to the periphery of the inner clamp and positioned to engage the outer clamp; wherein the damping blocks include a damping layer intermediate the inner and outer clamps, said damping layer arranged to dampen vibration loads from the pipe.

Abstract: A bridge is provided with at least five segments connected in series. Each segment includes two opposed ends. The ends of adjacent segments are in pivoting connection with respect to each other. The bridge also comprises a plurality of cables. For each end of each segment, at least one cable extends between the end of the segment and at least one end of at least one other segment. The cables have sufficient sizes, such that when the segments are pivoted to an orientation which forms an upwardly bowed arch, each of the cables extends in a substantially straight line between the ends of the segments. In addition, the segments on the ends of the bridge may be pivoted toward each other to provide slack in the cables, which enables the segments to pivot with respect to each other to form a compact configuration.

Abstract: The invention concerns a bridging system comprising several uniform bridge section in the form of track supports (1). The width of the bridge can be continuously adjusted with telescoping pipes ( 2 ). The stationary ramps ( 3 ) on the track support are slotted like a comb and, once the have been assembled and connected to the pivoted-out lower truss system (4), can accommodate any compression forces and bending moments that occur when traveled. Since each track support is the same shape, the bridging system has a smoothly curving upper roadway edge.The traction component (5) in each track support travels back and forth between pivoting stays (9) provided with connectors (8) and the overall lower truss system can be pivoted into the track support.This bridging system, which consists of modular track supports (1), is outstanding for its compact traveling state and few connectors and can be positioned by appropriate transporting and laying equipment.

Abstract: The useful life and carrying capacity of an existing steel truss bridge are increased by adding a support arch assembly secured to the truss structure. In the preferred embodiment the support arch structure assembly includes arch members running along each side of the bridge. Each arch member includes two spaced arch sections, each arch section including end-to-end beams, preferably channel beams, forming an arcuate path. The web portions of the arch beams are secured to hangers of the truss structure, one arch section extending on the inboard side of the hangers, the other section extending on the outboard side. Additional floor beams may be added, along with corresponding additional hangers which can be secured to the arch beams. The support arch assemblies may be post-tensioned by tension bars connected between opposite ends thereof.

Abstract: An elongate support member of the type generally used to span a pair of horizontally spaced supports is stiffened by pivotally attaching thereto at spaced points along its length at least two posts which extend in the same general direction and generally transverse to the length of the support member, and by pivotally attaching tension members or ties to a point at or near each end of said member and the free end of the nearer post and from at or near the free end of a post to the pivotal connection of the next adjacent post to the member, whereby the tension members or ties cross each other between adjacent posts. This form of stiffening allows bending moments and deflections arising as the result of loads applied to the member to be reduced and rendered positive.

Abstract: This invention provides an improved reinforcement for a bridge span, the reinforcement including a reinforcing member for attachment in an underslung position to the span, a reinforcing strut adapted at its first end for pivotal connection to a point intermediate the ends of the reinforcing member and jacking means for urging the reinforcing strut into its working position in which the reinforcing member is under tension. The improvement resides in that the jacking means is adapted to be mounted upon the bridge span and, in use, exerts a force transverse to the longitudinal axis of the strut to urge it into said working position in which the strut is, at its point of connection to the member, inclined at acute angles to the member.

Abstract: A cable tensioning means for use in reinforcing bridges or structural spa The unit is stowed for transport within the confines of the structure and is moved into operating position by a hydraulic leverage system. The reinforcing cable is fixed at each end and is threaded around dual sheaves within the unit. Tension or prestress is introduced to the cable by separation of causing one sheave to move away from the other.

Abstract: A dock assembly wherein single or interconnected composite beam mainspans are connected to a ramp extending from shore to the first neighboring mainspan and one end of each of said mainspans is supported by a tripod structure and the other end by vertical members. The composite beam mainspans comprise deck structures in combination with pre-tensioned cables, said cables being connected to the ends of the deck structures and extending obliquely along the underside of said deck structures in spaced relationship to the mid-point of said structures. Means attaching the principal members of said assembly are provided whereby the dock assembly may be readily installed or disassembled, or optionally, after removal of the mainspans and ramp, the support structures may be rotated at their footings for underwater storage. Height of the mainspan is adjustable for mainspan leveling and adjusting mainspan height from the water surface.

Abstract: This invention relates to bridge sections and is particularly concerned w bridge sections of the type which incorporates tensioned cables to reinforce the structure of the bridge sections. The cables are tensioned to provide a bowstring truss section in the completed bridge.

Abstract: A platform mountable to extend between a pair of vertically movable stagings to provide a vertically movable elongated staging. The staging platform is composed of a plurality of like configured bridge sections vertically pivotably connected end to end and maintained in horizontal alignment between the spaced stagings and stretched taut beneath the bridge sections to prevent the staging platform from sagging while allowing the platform to bend upwardly. The pivotal connecting means between the bridge sections being spaced laterally at deck level of the platform and thus having substantial capability for flexing in response to longitudinal twisting forces exerted thereon.