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Incompetent design of simple steel beams

This report concerns designs for simple steel beams submitted to building control bodies under Part A of the Building Regulations. The reporter, a checking engineer for a building control body, was not able to accept the effective length and restraints assumed in a number of submitted designs. Most originated from individuals who used proprietary structural design computer packages without, i...

24 May 2023

CROSS Safety Report

Report ID: 1183

Region: CROSS-UK

Incorrectly installed tension control bolts could have led to serious consequences

A reporter finds incorrectly installed system HRC preload bolt assemblies, better known as tension control bolts, during a site inspection of a new highway bridge over a railway. The incorrectly fitted bolts could have had major structural implications, and led to other safety risks, if the installation error had not been spotted.

24 May 2023

CROSS Safety Report

Report ID: 1196

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

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

Specification issue with steel hollow sections

A reporter raises concerns after their structural engineer had failed to specify the steel grade used in the design for hollow sections on two projects.

30 July 2021

CROSS Safety Report

Report ID: 1006

Region: CROSS-UK

Roof collapse of warehouse structure under rainwater ponding

This report highlights the structural risk caused by rainwater ponding on relatively flat roofs.

10 May 2021

CROSS Safety Report

Report ID: 969

Region: CROSS-US

Failure of large aluminium composite panel

This report highlights the importance of correctly designed fixings and anchoring systems for cladding panels to buildings to minimize the risk of failure.

30 April 2021

CROSS Safety Report

Report ID: 962

Region: CROSS-AUS

Weld de-specification without design approval

A reporter's firm was engaged as fabricators for a main contractor and asked by them to de-specify full and partial penetration butt welds and replace them with fillet welds without approval from the main design engineer.

14 October 2020

CROSS Safety Report

Report ID: 845

Region: CROSS-UK

Fire risks in multi-storey car parks

A reporter is concerned by the reluctance of the industry to voluntarily take on board and proactively react to the lessons learnt from the fire at the Echo Arena car park in Liverpool.

14 October 2020

CROSS Safety Report

Report ID: 940

Region: CROSS-UK

Execution not matching design assumptions

This report highlights how the connection of steel columns to twin beams acting as a transfer beam was overlooked and created an eccentric loading condition.

14 October 2020

CROSS Safety Report

Report ID: 968

Region: CROSS-UK

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