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This paper provides a summary of the issues in the passive fire protection of steel structures. Types of passive fire protection and the material properties of protection members and steel members are described. The paper deals with the possibility of partial fire protection for secondary steel beams, in cases where, due to possible membrane action, it is not necessary to apply passive protection to the entire beams.

Studies of partially fire-protected steel structures are compared, and results from studies with different input data are summarized. A fire experiment was conducted to investigate the effect of partial passive protection in a small-scale furnace. Based on the findings of the experiment, numerical models were prepared using Ansys Mechanical.

The results are summarized, and a partial fire protection length of 500 mm is recommended. Various partial fire protection lengths were compared, and the temperature development of the steel contactors was compared using a protection length of 500 mm. At the end of the paper, options for partial passive protection of steel beams are presented.

Extended paper from ASFE2021 based on selection.

During the 1980s, the Textile/Clothing Technology Corporation in the USA has undertaken an imaginative and ambitious research and development programme to promote further automation in the industry. This study focuses attention on the development phase of the project, and documents changes which have been made in order to commercialise the original prototype equipment. The format and style of the paper is that of a case study, designed to promote thought on strategic planning and the management of long‐term R&D projects, with particular reference to the UK clothing industry.