The Pyne Gould Corporation Building collapsed during the After-shock on 22^nd February, 2011.  The building was largely deconstructed, leaving a pile of debris on the site, by the time of the site examination undertaken by Dr Clark Hyland of  Hyland Consultants Limited for the Department of Building and Housing.

Structural remnants were recovered from the debris for examination on 16^th March 2011.  Their configuration and condition were documented, and samples were taken for testing to allow further engineering studies by others to be conducted to better understand why the building collapsed. read article »

Dr Clark Hyland undertook a site examination and materials testing for the Department of Building and Housing soon after the stairs in this 18 storey building collapsed in the 22 February 2011 earthquake aftershock. The objective was to determine the condition of the stairs remaining in the stair well and try to identify possible causes of the damage to and collapse of the stair flights for further investigation and analysis by other parties. read article »

Dr Clark Hyland of Hyland Consultants and Ashley Smith of StructureSmith investigated the reasons for the collapse of Stadium Southland during a heavy snow fall in 18 September 2010, for the Department of Building and Housing. The collapse sequence was deduced using a combination of on-site examination of the state of the collapse debris, laboratory examination of specimens extracted from the debris, laboratory testing of components to establish material properties and full scale testing of truss chord portions at the University of Auckland.  read article »

Hyland Consultants is a licenced user of the powerful ABAQUS CAE 6.12 finite element software.  Recently we assessed the development of cyclic plastic strain development in shear links of  seismic resisting eccentrically braced steel frames (EBF).  The analyses found that plastic strain growth in shear links is not linearly cumulative particularly when strain ageing effects can develop between loading events.

Hyland Consultants investigated the condition of hanger stay bolts of a large stadium roof subject to fatigue loads from wind.  The purpose was to determine what level of fatigue damage may have occurred in the 30 years since construction and to estimate what the remaining working lives of the hanger bolts were.  read article »