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CROSS regions
Concerns about punching shear in a flat slab
This report concerns potential shear failures in flat slabs. This originates from inconsistent design and detailing of the shear reinforcement where a proprietary shear link system is assumed in the design but not followed in detailing.
13 December 2021
CROSS Safety Report
Report ID: 1050
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
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
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
Alterations to existing buildings with no site visits
A reporter is concerned about structural engineers developing structural calculations and drawings based on the Architects’ drawings only, with no site visits.
1 January 2014
CROSS Safety Report
Report ID: 365
Region: CROSS-UK
Stability of timber frame construction
A reporter who has many years design experience in timber frame construction raises concerns about a common defect they have experienced when checking calculations.
1 February 2007
CROSS Safety Report
Report ID: 51
Region: CROSS-UK
Building Regulations submission for a small house
A reporter who is a small builder shares their experience on inadequate design calculations they received for a small house.
1 January 2008
CROSS Safety Report
Report ID: 91
Region: CROSS-UK
Reduced partition loads on proprietary joists
A reporter believes that a number of proprietary joist manufacturers are using a reduced partition allowance for the engineered joist design.
1 July 2008
CROSS Safety Report
Report ID: 108
Region: CROSS-UK
Alteration of calculations on constructed loft conversion
A reporter says they were pressurised to adjust structural design calculations to pass a building control check.
1 July 2016
CROSS Safety Report
Report ID: 580
Region: CROSS-UK
Incorrectly designed safety system
A reporter raises concerns about the way in which the structure for a safety system had been modelled using an inappropriate software package.
1 January 2016
CROSS Safety Report
Report ID: 527
Region: CROSS-UK
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