Client:

Burtenshaw Scoufis Architecture Interiors

Brief Project Description:

The University of Sydney recently constructed a high capacity vertical reaction wall and strong floor at their structural laboratory testing facility, enabling their partners to test large scale timber samples, reinforced concrete and steel structures up to 20m in length and 8m wide. The reaction wall has a 2 meganewtons horizontal load to facilitate advanced structural testing, supported by one of Australia’s largest strong floor structures.

DSP’s involvement?

DSP was engaged to perform an as-built survey of both the reaction wall and floor to determine wall and floor ‘flatness’ and to report on any non-compliance with the design specifications. Level and position of floor, walls, anchor points were required to sub-millimetre accuracy.

Measurement of the floor flatness was performed using a state-of-the-art high precision digital level with an invar staff achieving accuracies < 0.5mm.

The verticality and positioning of the wall anchor points presented DSP with a greater challenge. Conventional surveying equipment would not achieve the desired accuracies and an alternative solution needed to be found. It was decided that the best solution was 3D metrology. A high precision absolute laser tracker was used to measure the verticality of the reaction walls and positions of the wall and floor anchor points. Results obtained with this technique achieved absolute accuracies of < ±1.0mm.

How did DSP add value to the project? :

Without the use of innovative techniques and modern precise measuring equipment, the desired accuracies would not have been achieved. DSP’s commitment to providing a solution for our client in a cost effective and timely manner gave our client increased confidence of DSP’s capabilities and performance on this project.