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SPAN 500 BRIDGED TOWER
17. Place a loose horizontal brace in hooks at each end of a spandeck. Rest two spandeck handrails
across horizontal braces, running parallel to spandeck. Fix right angle couplers between each
handrail and brace at each end. Detach couplers from horizontal braces (couplers fixed to handrail
now have centres as spandeck).
18. Temporally couple both towers together by fixing couplers mounted on handrail to horizontal tubes
of the tower frames. Adjust the position of the second tower as necessary to achieve the same tower
spacing as the couplers. Make necessary adjustments to ensure both towers are square to each
other and apply the brakes.