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- CROSS-AUS Newsletter 3 (2)
- CROSS-AUS Newsletter 4 (1)
- CROSS-AUS [sub-heading only] (3)
- CROSS-UK Newsletter 9 (1)
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- CROSS-UK Newsletter 44 (1)
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- CROSS-UK Newsletter 54 (1)
- CROSS-UK [sub-heading only] (6)
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CROSS regions
Collapse of unusual hybrid concrete and steel strand truss on school roof
This report concerns the collapse of a school hall roof which resulted from the failure of one of a number of unusual hybrid concrete and steel strand trusses. The trusses consist of a precast reinforced concrete top chord and verticals with a bottom chord of tensioned steel strands. The failure of the truss resulted in the collapse of the supported flat roof local to the failed truss, and da...
25 May 2023
CROSS Safety Report
Report ID: 1227
Region: CROSS-UK
Concrete half joints
Poor reinforcement detailing and installation in a half joint led to the collapse of a series of beams and precast concrete slabs.
1 January 2008
CROSS Safety Report
Report ID: 88
Region: CROSS-UK
Car park staircase collapse at construction joint
The top flight of a staircase to a multi-storey concrete car park collapsed approximately 10 years after construction.
1 July 2008
CROSS Safety Report
Report ID: 106
Region: CROSS-UK
Gain in strength of mortar slower than concrete
A masonry wall settled and cracked after four courses of Engineering grade B bricks were substituted (not by the designer) for the original in-situ concrete padstones on cost and handling grounds.
1 April 2010
CROSS Safety Report
Report ID: 177
Region: CROSS-UK
Near miss when modifying brickwork
A reporter’s experience of creating a new door opening in an existing brick wall on the first floor of an old building is not always as simple as it would appear.
1 February 2020
CROSS Safety Report
Report ID: 847
Region: CROSS-AUS
Design and erection of prefabricated (precast) concrete
A correspondent considers that there should always be an experienced temporary works designer for prefabricated concrete structures as many structural engineers do not consider the erection methodology when designing such structures.
1 February 2020
CROSS Safety Report
Report ID: 871
Region: CROSS-AUS
GFRP reinforcement in concrete structures
A correspondent has become aware of work being undertaken in the field of glass fibre reinforced polymer (GFRP) reinforcement as a substitute for steel rebar in concrete structures and is deeply concerned by what they have observed.
1 August 2020
CROSS Safety Report
Report ID: 939
Region: CROSS-AUS
Steel balconies fixed to precast hollowcore floor planks
A reporter is concerned about the suitability of providing a retrofitted steel balcony requiring moment connections to the sides of typical hollowcore floor planks.
1 July 2017
CROSS Safety Report
Report ID: 620
Region: CROSS-UK
Responsibilities for hybrid concrete construction
Concerns are raised after a substantial precast element, weighing over 10t, had been placed in position and used as part of the shuttering for an in-situ pour without it being designed to act as a shutter.
1 October 2016
CROSS Safety Report
Report ID: 574
Region: CROSS-UK
Inadequate billets used in precast concrete connections
Whilst completing a third-party design appraisal, a correspondent found that solid steel billets intended to form the primary shear transfer mechanism between concrete beams and columns were insufficient for this purpose.
1 April 2019
CROSS Safety Report
Report ID: 705
Region: CROSS-UK
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