Case Study - Manchester MPT: Value Engineered Solutions
When asked to provide a simpler solution for the installation of the supports for the Overhead Line Electrification (OLE), VJT value engineered a solution/product that saved time, and therefore money, by speeding up the installation sequence by designing a fixing that could be cast into the concrete bases rather than “post fixing” where the anchor bolts would have been drilled and fixed once the concrete had cured.
VJT manufactured these special M24 anchor sockets from M36 8.8 grade bar and additional corrosion resistance was achieved by a specially applied high performance zinc coating. Site tests undertaken in Manchester by VJT and closely observed by the MPT engineers proved the performance of the anchorage as each of the test anchors held a load of 200kN (20 tons) without anchor or substrate stress.
A bridge arch on the MPT project needed additional support and stainless steel tie bars were required to reinforce the structure. At one end the bars could be drilled and bolted to the steel beams, but at the other end there were serious access problems.
The only option appeared to be road closure and the consequent disruption to Manchester’s traffic flow.
Derek Thompson, VJT technical salesman, provided a solution that did not require any road closure and enabled the installation of the tie bars without the need to have access to the back of the beams. Working with the product supplier Lindapter, VJT found a solution that saved a significant amount of time and did not affect Manchester’s traffic flow.