scholarly journals Effect of concentrated Butt-Joints on flexural properties of laminated Bamboo-Timber flitch beams

2021 ◽  
pp. 109963622110401
Author(s):  
Hexin Zhang ◽  
Niaz Gharavi ◽  
Simon HF Wong ◽  
Yu Deng ◽  
Ali Bahadori-Jahromi ◽  
...  
Keyword(s):  
Close Agreement ◽  
Strength Reduction ◽  
Experimental Results ◽  
Flexural Properties ◽  
Forensic Investigation ◽  
Butt Joints ◽  
Obvious Effect ◽  
Laminated Bamboo ◽  
Structural Applications ◽  
Laminated Bamboo Lumber

This paper presents the experimental and analytical studies to investigate the effect of concentrated butt-joints on the flexural properties of laminated bamboo-timber flitch beam (BTFB, or bio-flitch beam). The experimental results reveal that the concentrated butt-joints significantly reduce the flexural strength of the BTFB. They also suggest that the failure mechanism of the BTFB with or without concentrated butt-joints are completely different but less evidence shows an obvious effect of the butt-joints on the modulus of elasticity in bending. In addition, laminated bamboo lumber with concentrated butt-joints is found to be unsuitable for structural applications. The analytical predictions are in close agreement with the experimental results that demonstrate the potentials of the proposed analytical model as a forensic investigation instrument to estimate the strength reduction of the structure, if the butt-jointed laminated bamboo was, unfortunately, used in construction.

scholarly journals The Impact and Modelling of Concentrated Butt-Joints on Vertically Laminated Bamboo-Timber Hybrid Bio-Flitch Beams

2021 ◽  
Author(s):  
Hexin Zhang ◽  
Niaz Gharavi ◽  
Simon H.F. Wong ◽  
Yu Deng ◽  
Ali Bahadori-Jahromi ◽  
...  
Keyword(s):  
Experimental Study ◽  
Close Agreement ◽  
Experimental Results ◽  
Flexural Properties ◽  
Butt Joints ◽  
Laminated Bamboo ◽  
Structural Applications ◽  
Hybrid Beams ◽  
The Impact ◽  
Laminated Bamboo Lumber

Abstract This paper presents the experimental and analytical studies to investigate the impact of concentrated laminated bamboo butt-joints on the flexural properties of vertically laminated bamboo-timber hybrid beams (VLHBs, or flitch beam). The experimental results reveal that the concentrated butt-joints significantly reduce the flexural strength of the VLHB. They also suggest that the failure mechanism of the VLHBs with or without concentrated butt-joints are completely different. In addition, laminated bamboo lumber with concentrated butt-joints was found to be unsuitable for structural applications. The analytical estimations show close agreement with the experimental results. However, due to the layout of the sample VLHB, the experimental study cannot confirm the impact of the butt-joints on the modulus of elasticity in bending.

Axial compressive behavior of laminated bamboo lumber columns with a chamfered section

Structures ◽  
2021 ◽  
Vol 33 ◽  
pp. 678-692
Author(s):  
Chaokun Hong ◽  
Haitao Li ◽  
Zhenhua Xiong ◽  
Rodolfo Lorenzo ◽  
Xin Li ◽  
...  
Keyword(s):  
Compressive Behavior ◽  
Laminated Bamboo ◽  
Laminated Bamboo Lumber

Effect of nodes on mechanical properties and microstructure of laminated bamboo lumber units

2021 ◽  
Vol 304 ◽  
pp. 124427
Author(s):  
Han Zhang ◽  
Haitao Li ◽  
Yanjun Li ◽  
Zhenhua Xiong ◽  
Nini Zhang ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Laminated Bamboo ◽  
Laminated Bamboo Lumber

Size Effect on the Compressive Strength of Laminated Bamboo Lumber

2021 ◽  
Vol 33 (7) ◽  
Author(s):  
Han Zhang ◽  
Haitao Li ◽  
Chaokun Hong ◽  
Zhenhua Xiong ◽  
Rodolfo Lorenzo ◽  
...  
Keyword(s):  
Compressive Strength ◽  
Size Effect ◽  
Laminated Bamboo ◽  
Laminated Bamboo Lumber

Effect of Surface Conditions on the Adhesion of Crystallization Fouling

2010 ◽  
Author(s):  
Yong Zou ◽  
Yida Liu ◽  
Gongming Xin ◽  
Wen Liu ◽  
Lin Cheng
Keyword(s):  
Heat Transfer ◽  
Surface Roughness ◽  
Oxide Layer ◽  
Crystalline Structure ◽  
Lattice Parameter ◽  
Hexagonal Structure ◽  
Experimental Results ◽  
Obvious Effect ◽  
Surface Conditions ◽  
Effect Of Surface

In this study, effects of surface conditions in terms of surface roughness and oxide layer, on adhesion of crystallization fouling on heat transfer surfaces were investigated. The experimental results showed that the surface roughness has no obvious effect on the adhesion of crystallization fouling. The polished sample did not present better anti-fouling properties compared to other rough samples. While the formation of Fe2O3 layer on the surface is proved to be able to accelerate the adhesion of calcite fouling with hexagonal structure, because there are similar crystalline structure and lattice parameter between the Fe2O3 and calcite fouling. Therefore, in order to improve the anti-fouling property of heat transfer surfaces, inhibiting the formation of oxide layer is more important than efforts to improve surface roughness.

Glue Laminated Bamboo (GluBam) for Structural Applications

2014 ◽  
pp. 589-601 ◽  
Author(s):  
Y. Xiao ◽  
B. Shan ◽  
R. Z. Yang ◽  
Z. Li ◽  
J. Chen
Keyword(s):  
Laminated Bamboo ◽  
Structural Applications

The Strength of Thick-Walled Cylinders

1959 ◽  
Vol 81 (2) ◽  
pp. 95-111 ◽  
Author(s):  
B. Crossland ◽  
S. M. Jorgensen ◽  
J. A. Bones
Keyword(s):  
Shear Stress ◽  
Mild Steel ◽  
Close Agreement ◽  
Large Strain ◽  
Tension Test ◽  
Experimental Results ◽  
Maximum Pressure ◽  
Strain Behavior ◽  
Pressure Tests ◽  
Strain Data

Comprehensive pressure tests have been carried out on thick-walled, closed-ended cylinders made from a mild steel and a hardened and tempered steel, the maximum pressure reached being 94,000 lb/in.2 The complete theoretical behavior of the cylinders is computed from shear stress-strain data obtained from torsion tests and is shown to be in very close agreement with the experimental results. In addition, a method is given for deriving the large strain behavior of the cylinders from tension test data. When compared with the experimental results this approach gives larger errors, the theoretical values of pressure being consistently high. Finally, ultimate pressures have been calculated from two empirical expressions.

scholarly journals THE MOTIONS OF A MOORED SHIP IN A HARBOR BASIN

1982 ◽  
Vol 1 (18) ◽  
pp. 165 ◽  
Author(s):  
T. Sawaragi ◽  
M. Kubo
Keyword(s):  
Green’S Function ◽  
Green's Function ◽  
Close Agreement ◽  
Three Dimensional ◽  
Ship Motion ◽  
Experimental Results ◽  
New Methods

In harbors affected by ocean swells,cargo handlings are often interrupted and irooring lines are broken as a result of severe ship motionsl). In order to decrease such accidents, the noored ship notions in a harbor basin must be studied. In this paper the ship notions in the harbor basin are investigated by using three dimensional Green's function and close agreement between theoretical and experimental results can be found. New methods to reduce noored ship motion are also proposed. The efficiency of these methods is verified theoretically and experimentally.

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