Abstract
This paper presents a new type of lightweight composite structural system using bamboo-based panel and cold-formed thin-walled steel. The bamboo-based panel and cold-formed steel with C-section and U-section or profiled steel sheet can form various steel-bamboo composite members, including composite slab, composite wall, composite beam and composite column, utilizing structural adhesive or adhesive-screw reinforced joins. The paper summarizes the section design, mechanical experiments of the steel-bamboo composite structures based on the application of bamboo-based panel in modern building structures. Research shows that the two materials can form a perfect composite section and the connection systems are very effective in a long time, composite members have high capacity, ideal stability and ductility. The study shows that steel-bamboo composite components have good prospects in building structures of China.
Highlights
With the improvement of people's living and the awareness of environmental protection, people begin to use green building materials, such as lumber and bamboo in modern building structures
According to different reinforcement methods, specimens are divided into 3 groups: in the first group, bamboo plywood and C steel were connected by structural adhesive only; the second group were reinforced by self-tapping screws on the basis of structural adhesive; last group were reinforced with self-tapping screws and bamboo laths on both sides of C steel
The section form of steel-bamboo composite beam is shown in Fig.3, which takes cold-formed thin-wall channel steel as the backbone and the bamboo plywood is pasted on the outer surface of the steel sheet with structural adhesive to form an I-shaped cross-section
Summary
With the improvement of people's living and the awareness of environmental protection, people begin to use green building materials, such as lumber and bamboo in modern building structures. Since 2006, the authors have carried out a series of research work to promote the development of steel-bamboo composite structures [8,9,10,11,12]; various composite members have been proposed, including composite slab, composite wall, composite beam and composite column, to build plat-frame structure and beam-column frame structure or to assemble large space panel structures with rigid connection or other reliable connection. These composite members consist of cold-formed thin-walled steel (U-section, C-section or profiled steel sheet) and bamboo-based panel mainly utilizing adhesive or adhesive-screw reinforced joins. The main objective of this research was to investigate mechanical properties of the steel-bamboo composite members and promote the application in modern building structures
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