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CROSS regions
Tower crane base designs
A reporter’s firm has been involved in the design and checking of numerous tower crane bases and have come across many examples where the supplier of the tower crane has supplied incorrect loadings. These incorrect loadings could have led to crane failures had the errors not been spotted.
7 June 2022
CROSS Safety Report
Report ID: 1093
Region: CROSS-UK
Inadequate design submissions for alterations to an existing building
An upper storey extension was designed without considering the effect on the structure below.
10 March 2022
CROSS Safety Report
Report ID: 1085
Region: CROSS-UK
Poor quality design leads to failure for a small design and build contract
An example of a small design and build contract where poor design and management led to an inadequate structure being built.
6 June 2022
CROSS Safety Report
Report ID: 1088
Region: CROSS-UK
Concern that the structural design of some recent buildings may not have been checked
A reporter has become increasingly concerned that some buildings may be structurally non-compliant for a number of reasons.
26 August 2022
CROSS Safety Report
Report ID: 1120
Region: CROSS-UK
Potentially unsafe buckling resistance checks using software
A number of anomalies were detected in the outputs from a proprietary structural steelwork design program.
6 June 2022
CROSS Safety Report
Report ID: 1075
Region: CROSS-UK
Excessive deflection of spliced steel beam
A long-span primary steel beam deflects excessively at its splice during concreting of the floor slab.
30 August 2022
CROSS Safety Report
Report ID: 1111
Region: CROSS-UK
Floor vibration in a gym
Vibration within the floor structure of a second floor gym gives rise to concern of structural resonance and possible fatigue of structural members.
26 August 2022
CROSS Safety Report
Report ID: 1106
Region: CROSS-UK
Safety issues when adding PV panels to existing roofs
A reporter raises concerns over the lack of structural engineering knowledge and dangerous assumptions, that they have seen, in assessments for the installation of photovoltaic (PV) panels for a number of buildings.
13 December 2021
CROSS Safety Report
Report ID: 1015
Region: CROSS-UK
Unsafe design of retrofit cantilever balconies
A structural assessment of a number of new balconies being added to an existing building revealed critical concerns in respect of fixings back into the existing brickwork.
26 August 2022
CROSS Safety Report
Report ID: 1128
Region: CROSS-UK
Punching shear in concrete slabs at perimeter columns
A reporter raises concerns about the underestimation of bending moments in perimeter columns when assessing punching shear in adjacent concrete slabs. Punching shear failures can be brittle and catastrophic. Designers need to include the appropriate ultimate moment in the design actions.
14 October 2022
CROSS Safety Report
Report ID: 1122
Region: CROSS-AUS
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