Overview
Frankham were appointed to investigate outline strengthening options for mitigating the deteriorating condition of a brickwork Jack Arch deck at Bishopsgate Goods Yard.
Our Scope
The in-house activities undertaken by Frankham for the study comprised:
- A condition survey of wrought iron girders.
- Paint analysis to test for lead on the wrought iron girders.
- A topographical survey of the structure, at the mid and upper level.
- A Hidden Critical Element examination of the wrought iron girder webs hidden by the brickwork jack arches, including use of an ultrasonic thickness gauge.
- Outline strengthening options for temporary supports to the girders.
Our Approach
As part of the initial study, Frankham undertook a detailed desk study
and site visit to identify the constraints that may influence or affect the strengthening designs, including details review of the previous structural assessment report.
To further add value, 3D images were produced and presented to the client and the developers engineer so that concept could be agreed prior to the more detailed work.
