The key points of assembling corrugated plates for bridges and culverts are to design the construction process of assembling corrugated plates, organize the order of each piece reasonably, and design the size of the plates to facilitate transportation and installation while minimizing the number of bolts; Try to deviate the connection position from the location where equivalent stress and tangential stress are concentrated as much as possible; Tangential stress controls bolt shear stress.2Precautions for assembling corrugated culvert pipes for bridge reinforcement: Firstly, prepare installation tools, simple lifting equipment, socket wrenches, fixed torque electric wrenches, fixed torque wrenches, sufficient footrests, springboards, and construction site power supplies. Pre installation work: Check the bottom elevation and longitudinal slope of the steel corrugated pipe culvert; Determine the position, central axis, and midpoint of the corrugated culvert pipe. Assemble the bottom steel corrugated plate: Using the center axis as the reference, position the first corrugated plate and extend it from this point to both sides until the two ends are reached. The overlap length is50mmAlign the connecting hole, insert the bolt into the hole from the inside out, put a washer on the outside and tighten the nut with a specific air cannon socket wrench. Assembling arched steel corrugated pipes: assembled in sequence from bottom to top: the circumferential connection adopts a stepped shape, and the overlap length is50mmThe connection seam between the upper two plates is misaligned with the connection seam between the lower two plates. After aligning the connection holes, a bolt is inserted into the hole from the inside out, and a specific tool, an air cannon socket wrench, is used to pre tighten the nut. When assembling the circular ring in the circumferential direction, measure the cross-sectional dimensions, adjust the pre tightening bolts in a timely manner, correct the top corrugated plate during assembly, and ensure that the cross-sectional dimensions meet the requirements.
