scholarly journals Study on Flexural Behaviour of Box Section Bamboo-Steel Composite Beams

2020 ◽  
Vol 2020 ◽  
pp. 1-9
Author(s):  
Qifeng Shan ◽  
Jialiang Zhang ◽  
Keting Tong ◽  
Yushun Li
Keyword(s):  
Bearing Capacity ◽  
Safety Margin ◽  
Composite Beams ◽  
Experimental Results ◽  
Flexural Stiffness ◽  
Flexural Behaviour ◽  
Box Section ◽  
New Type ◽  
Steel Composite ◽  
Thin Walled

To take full advantages of the bamboo and cold-formed thin-walled steel, a new type of box section beam combined with bamboo and steel channel was proposed in this paper. Five composite beams with different parameters were tested to evaluate the effects of bamboo plywood thickness of composite beams and thickness and sectional dimension of steel channel. The results of experiment showed that the proposed composite beams exhibited excellent flexural bearing capacities and stiffness. The increase of bamboo plywood thickness and sectional dimension of steel channel could improve bearing capacity and flexural stiffness of composite beams, while the increase of steel thickness could enhance the bearing capacity and safety margin of composite beams. Furthermore, a new method to predict the deformation and bearing capacities of composite beams was proposed and matched well with the experimental results.

A New-Type Bamboo-Steel Composite Structural Member, Box Section Bamboo-Steel Composite Beams

2011 ◽  
Vol 94-96 ◽  
pp. 490-494
Author(s):  
Bo Lv ◽  
Qi Tie Xie ◽  
Jie Xu ◽  
Tian Yuan Jiang ◽  
Yu Shun Li
Keyword(s):  
Steel Sheet ◽  
Composite Beams ◽  
Structural Member ◽  
Thin Wall ◽  
Building Structures ◽  
Structural Members ◽  
Box Section ◽  
New Type ◽  
Steel Composite ◽  
Structural Adhesive

Bamboo-steel composite structure contains all kinds of composite structural members, widen the applied range of bamboo and implement the diversification of component materials and forms in building structures. The paper presents a new-type box section bamboo-steel composite beams on the basis of I-section bamboo-steel composite beams, which take cold-formed thin-wall steel as the backbone, pastes bamboo plywood outer surface of steel sheet with structural adhesive, combines into box section bamboo-steel composite beams.

Prestress Analysis of Flat Steel Ribbon-Wound Vessel

1993 ◽  
Vol 115 (2) ◽  
pp. 171-176 ◽  
Author(s):  
P. S. Huang ◽  
G. B. Zhu ◽  
R. Barron
Keyword(s):  
Theoretical Model ◽  
Pressure Vessel ◽  
Inner Core ◽  
Full Scale ◽  
Experimental Results ◽  
New Type ◽  
Flat Steel ◽  
Thin Walled ◽  
Steel Ribbon

The flat steel ribbon-wound vessel is a relatively new type of wound pressure vessel. This type of vessel consists of a thin-walled inner core and helically wound flat steel ribbons. The outstanding safety in service of this type of vessel is due, in part, to the large circumferential and axial prestresses introduced during the ribbon-winding process. This paper presents a model for determination of prestresses in such a vessel. The model considers the fabrication procedures producing the prestress in the vessel. Experimental results from tests using full-scale vessels are presented. Agreement between the theoretical model and the experimental results is excellent.

scholarly journals Analysis and Experimental Study on Bearing Capacity of “All-Inclusive” Underpinning Joint

2020 ◽  
Vol 2020 ◽  
pp. 1-10
Author(s):  
Kefeng Yue ◽  
Lei Yan
Keyword(s):  
Bearing Capacity ◽  
Experimental Results ◽  
Calculation Formula ◽  
Connection Method ◽  
New Type ◽  
Punching Failure ◽  
Simplified Calculation ◽  
Theoretical Results ◽  
Concrete Interface ◽  
Good Agreement

Aiming at the phenomenon of punching failure and large slip at the new-to-old concrete interface of “beam-column” underpinning joint, a new type of “all-inclusive” underpinning joint is tested and numerically analyzed, which adopts the spraying glue + grooving + planting bars + prestressed + hooping connection method. The experimental and numerical analysis results show that the connection method of “all-inclusive” underpinning joint can effectively avoid punching failure of the joint, and the failure mode is mainly flexure-shear. Then, the “all-inclusive” underpinning joint can delay the initial slip at the new-to-old concrete interface and reduce the overall slip. Finally, combining the theoretical and experimental results, a simplified calculation formula for the bearing capacity of the “all-inclusive” underpinning joint is improved. The theoretical results are in good agreement with the experimental results, which indicates that the calculation of the bearing capacity of the underpinning joint using the formula in this paper is feasible and can provide experimental and theoretical references for similar projects.

scholarly journals Shear behavior of I-shaped wood-steel composite beam

BioResources ◽  
2020 ◽  
Vol 16 (1) ◽  
pp. 583-596
Author(s):  
Shixu Wu ◽  
Qifeng Shan ◽  
Jialiang Zhang ◽  
Keting Tong ◽  
Yushun Li
Keyword(s):  
Composite Beams ◽  
Shear Capacity ◽  
Experimental Results ◽  
Reciprocal Theorem ◽  
Calculation Formula ◽  
Affecting Factors ◽  
Steel Buildings ◽  
Shear Span ◽  
Calculation Results ◽  
Steel Composite

To expand the application of wood as a building material, a new type of I-shaped wood-steel beam that consisted of laminated veneer lumber and cold-formed thin-walled steel was considered in this paper. The shear performance of nine wood-steel composite beams was tested to evaluate the effects of shear span ratio, web thickness, and flange thickness. Then, the failure pattern and failure mechanism of the composite beams were analyzed. The main affecting factors of shear capacities were also discussed. Furthermore, the calculation formula for bearing capacities of composite beams was established and the calculation results were compared with the experimental results. The experimental results showed that the combined effect of composite beams was excellent. The shear capacity was mainly affected by shear span ratio and web thickness. The calculation formula of the shear capacity was established based on the shear flow theory and the specification for structural steel buildings. The formula was derived from the micro-segment balance method and the reciprocal theorem of shear stress. The calculation results according to the formula were in good agreement with the experimental values.

scholarly journals Preliminary Analysis of the Aluminiumtimber Composite Beams

2017 ◽  
Vol 27 (4) ◽  
pp. 131-141 ◽  
Author(s):  
Maciej Szumigała ◽  
Marcin Chybiński ◽  
Łukasz Polus
Keyword(s):  
Bearing Capacity ◽  
Aluminium Alloys ◽  
Composite Structures ◽  
Preliminary Analysis ◽  
Composite Beams ◽  
High Price ◽  
Timber Beam ◽  
Load Bearing Capacity ◽  
Load Bearing ◽  
New Type

Abstract This paper presents a new type of composite structures - aluminium-timber beams. These structures have an advantage over other existing composite structures, because they are lighter. However, their application may be limited due to the high price of aluminium alloys. The authors of this article made an attempt to calculate the load-bearing capacity of an aluminium-timber beam.

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