This challenging roof top bar and restaurant extension project was located just above monument tube station in a tight city centre location. The project also included a steel frame, architectural stonework & glazing and shell & core.
A luffing tower crane was installed at roof level (9 stories) on a temporary structural steel grillage connected to the existing building steel frame. The grillage and luffing crane were lifted into position using a 350 tonne mobile crane which in itself, was erected with a smaller slave crane at street level.