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dc.contributor.authorMei, C.
dc.contributor.authorNg, A.
dc.contributor.authorLau, Hieng Ho
dc.contributor.authorToh, S.
dc.contributor.editorS.L. Chan
dc.identifier.citationMei, C.C. and Ng, A.l.Y and Lau, H.H. and Toh, S.L. 2009. Applications of Built-up Sections in Lightweight Steel Trusses, in S.L. Chan (ed), Sixth International Conference on Advances in Steel Structures, Dec 16 2009, pp. 857-864. Hong Kong, China: The Hong Kong Institute of Steel Construction.

Lightweight steel structures have been widely used in the construction industry. It is flexible and thus can be designed to cater for different usages. To enhance the application of cold-formed steel structures, innovative configurations are developed. These include increasing the load bearing capacity of the structure and stretching it over a larger span. Built-up section of lipped channels, either back-to-back or boxed-up for the critical elements of a truss is often adopted when it may have practical limitations in increasing the truss depth. This paper presents some of such applications in the construction industry. The built-up section possesses apparent improvement in lateral stiffness. Although these sections act together, they are currently designed individually. Current design codes do not have comprehensive provision for the design of built-up sections reflecting the improvement in design strength. The modified slenderness ratio for built-up sections in the American Iron and Steel Institute (AISI) North American Specification for the Design of Cold-Formed Steel Structural Members is adopted from researches and recommendations for hot-rolled sections. From literature search, field observation and preliminary test conducted, it reveals that the modification rule can be further developed to better reflect the improvement in the slenderness ratio of the built-up sections.

dc.publisherThe Hong Kong Institute of Steel Construction
dc.subjectbuilt-up section
dc.subjectlong span
dc.subjectroof trusses
dc.titleApplications of Built-up Sections in Lightweight Steel Trusses
dc.typeConference Paper
dcterms.source.titleProceedings of Sixth International Conference on Advances in Steel Structures and Progress in Structural Stability and Dynamics
dcterms.source.seriesProceedings of Sixth International Conference on Advances in Steel Structures and Progress in Structural Stability and Dynamics
dcterms.source.conferenceSixth International Conference on Advances in Steel Structures
dcterms.source.conference-start-dateDec 16 2009
dcterms.source.conferencelocationHong Kong, China
dcterms.source.placeHong Kong, China
curtin.departmentCurtin Sarawak - Faculty Office
curtin.accessStatusOpen access
curtin.facultyDepartment of Civil and Construction Engineering
curtin.facultySchool of Engineering and Science
curtin.facultyMiri Campus

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