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Inadequate modelling of existing building
An existing building suffered damage while being upgraded, which led to a more detailed inspection of the existing building’s condition. The report highlights the importance of conducting a thorough investigation and assessment of an existing building structure to ensure an understanding of how it will perform under the applied design loads, rather than relying on assumptions that may be unre...
30 March 2023
CROSS Safety Report
Report ID: 1082
Region: CROSS-AUS
Lessons learned from the 2018 Florida bridge collapse during construction
This was a bridge of an unusual design and was being constructed in an unusual manner. The main 53m pre-stressed pre-cast concrete span truss was in position when cracks appeared at a node and over a period of almost three weeks they visibly worsened until collapse occurred.
1 December 2020
CROSS Safety Alert
Region: CROSS-UK, CROSS-AUS, CROSS-US
The myth of quality assurance
This report argues that to achieve the objective of good quality construction that satisfies the design intent there is no substitute for the practice of regular site inspections being conducted by the original design engineer. It questions whether there has been too much reliance on the process of quality assurance systems to the detriment of the quality of the end product.
25 November 2021
CROSS Safety Report
Report ID: 960
Region: CROSS-AUS
The management of design related risks: structural, civil and fire engineers
Significant, and tragic, failures involving structures continue to occur: fires in apartment blocks in Milan, London and Taiwan, and structural collapses in Florida and Nigeria being recent examples. This paper gives emphasis to the need for engineers to consider risk management at a fundamental level.
15 December 2021
CROSS Safety Alert
Region: CROSS-UK, CROSS-AUS, CROSS-US
Inquiry into the construction of Edinburgh Schools
This Alert deals with the aftermath of the collapse of part the outer skin of a cavity wall at Oxgangs Primary School Edinburgh on 29th January 2016 in high winds.
1 February 2017
CROSS Safety Alert
Region: CROSS-UK, CROSS-AUS, CROSS-US
Tension systems and post-drilled fixings
Lining failures occurred in the Boston (Big Dig) tunnel in 2006, in the Balcome rail tunnel in the UK in 2011 and in Japan’s Sasago tunnel (2012); all related to the use of unsuitable fixings.
1 March 2014
CROSS Safety Alert
Region: CROSS-UK, CROSS-AUS, CROSS-US
Managing changes to design
In the correspondent's experience, change is the root of many of the problems discussed in the current debate about standards of construction.
1 July 2019
CROSS Safety Report
Report ID: 822
Region: CROSS-AUS
Inadequate design and quality assurance on a mandatory seismic retrofit project
A tenant's structural engineer discovers widespread design and related quality problems on a mandatory seismic retrofit project.
1 September 2020
CROSS Safety Report
Report ID: 986
Region: CROSS-US
Mandatory seismic retrofit construction with quality control problems
Standard seismic retrofit details were used for a building with a non-standard foundation, resulting in inadequate connection of structural shear walls to foundations.
1 September 2020
CROSS Safety Report
Report ID: 888
Region: CROSS-US
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