22BG: A New Era of Vertical Transportation Analytical Tools for the Construction of Tall Buildings

Julien Grange
QS
Multiplex Construction, London

At 278m (912ft), 22 Bishopsgate is set to become the tallest building in the City of London and Europe’s largest single commercial development. Its construction phase presented many challenges, but one of the greatest issues to overcome was to ensure comfortable and efficient labour movements, material deliveries, waste disposal, as well as plant and equipment transportation throughout its construction. The successful delivery of tall building projects is inextricably linked to the efficiency of construction-phase vertical transportation strategies. Although known as a recurring challenge in tall building construction, it has attracted limited attention in academic and industrial literature to date. Presently, the construction industry relies on anecdotal evidence to plan for such critical operations; whilst these experiential methods are well established and are often perceived to provide suitable guidance, they lack numerical back up and seldom do they facilitate a detailed understanding of the time-based supply:demand profiles, leaving projects greatly exposed to either incurring significant delays or being left with unnecessary lifting infrastructure costs. The current study introduces the Vertical Logistics Planning System (VLPS), an innovative real-world solution developed to overcome this challenge, demonstrating how the construction-phase vertical transportation strategy was assessed and optimised at 22 Bishopsgate, London. It is hoped that the outputs developed in the rest of this presentation will catalyze the development of further advancements in this field, assisting the transfer from an experiential approach, to a predictive, data-driven methodology.