Abstract
This paper presents a study aimed to estimate the flexural performance of profiled steel sheet-bamboo plywood composite slabs as a first step to evaluate its potential application as structural components. Nine specimens were tested to investigate the stability of steel-bamboo composite structure. According to different connection methods, three types of composite slabs were discussed, including pure bonding slabs (PBSs), composite bonding slabs (CBSs), and reinforced composite bonding slabs (RCBS). The result showed that specimens employed multiple composite methods (RCBS) exhibited excellent flexural bearing capacity and stiffness compared with PBS. The increase of bamboo plywood thickness could improve bearing capacity and flexural stiffness of composite slabs, while the reduction of screw spacing could enhance the bearing capacity and ductility of composite slabs. The RCBS, which can provide higher bearing capacity and stiffness and possess excellent deformation capability, are well worth of research and practical application.
Highlights
Today, environmental issues are receiving increasing attention because human activities have caused abnormal weather in many parts of the world
One connection method named pure bonding slabs (PBSs) was connected by simple adhesive bonding (Figure 2 (PBS)), and composite bonding slabs (CBSs) was strengthened with the self-tapping screw on the basis of PBS (Figure 2 (CBS)). e last method is reinforced composite bonding slabs (RCBS) which improved capacity with bamboo laths nailed on both sides of the composite slab (Figure 2 (RCBS)). e first group, namely PBS, is designed as the control group. e difference between specimens in PBS is the thickness of bamboo plywood. e second group, CBS, is designed to investigate the function of screw and thickness of bamboo plywood as well
RCBS, bamboo laths were utilized to compare with PBS and CBS
Summary
Environmental issues are receiving increasing attention because human activities have caused abnormal weather in many parts of the world. Bamboo has long been known for its fast growth, lightweight, high strength, and biodegradable properties It is a kind of natural building material with the advantages of a large strength ratio and convenience of processing. To have a better application of bamboo plywood in building structures, a new structural system named bamboo-steel composite structure was developed. Two materials are complementary to each other and bamboo plywood can avoid the weakness of easy buckling for profiled steel sheets. Buildings with those components are environmental friendly, light weight, and earthquake-resistant [8,9,10,11]. Different connection methods, nine slab specimens were tested to investigate the mechanical properties of composite slabs and to discuss their application prospects
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