scholarly journals Experimental research on shear performance of single bolt joints of bamboo curtain plywood

2021 ◽  
Vol 2045 (1) ◽  
pp. 012015
Author(s):  
G Tang ◽  
X N Wu ◽  
P Sun ◽  
C T Yang
Keyword(s):  
Ultimate Load ◽  
Steel Plate ◽  
Initial Stiffness ◽  
Bolted Connection ◽  
Yield Load ◽  
Future Design ◽  
Performance Grade ◽  
End Distance ◽  
Shear Performance ◽  
Bolt Diameter

Abstract This paper focuses on the shear resistance of the bolted connection between steel plate and bamboo curtain plywood. From the fifteen groups of specimens, the performance grade, bolt diameter and end distance of bolts have an influence on the ultimate bearing capacity of joints and the yield load of joints and the yield load is 65%∼75% of the ultimate load. The initial stiffness of the node increases with the bolt diameter increasing. Provide certain materials and theoretical references for bamboo in the future design and research.

scholarly journals Experimental Investigation on the Load-Carrying Capacity of Steel-to-Laminated Bamboo Dowel Connection I: Single Fastener with Slotted-In Steel Plate under Tension

2021 ◽  
Vol 2021 ◽  
pp. 1-10
Author(s):  
Zhaoyan Cui ◽  
Liuhui Tu ◽  
Ming Xu ◽  
Zhongfan Chen ◽  
Qingfeng Xu
Keyword(s):  
Carrying Capacity ◽  
Steel Plate ◽  
Mechanical Performance ◽  
Load Carrying Capacity ◽  
Initial Stiffness ◽  
Yield Load ◽  
Laminated Bamboo ◽  
Load Carrying ◽  
End Distance ◽  
Dowel Connections

The dowel-type connection is widely applied in timber and bamboo structures. It is ambiguous regarding the calculation method of engineered bamboo connections completely referred to the timber design codes. The steel-to-laminated bamboo dowel connections with slotted-in steel plate tests were conducted to investigate the mechanical performance under tension based on the ASTM-D5652-15. The effects of the thickness, dowel diameter, and end distance on the yield load, ultimate load, initial stiffness, and ductility of the connections were studied. The difference in the yield load for different end distance is negligible. With the same thickness of the connections, the lower the thickness to dowel diameter, the larger the load-carrying capacity. The three typical yield modes and corresponding load-displacement curves of the connections are observed. By considering the rigid-plastic model, the theoretical equation for the connections is proposed and proven to fit well with the experimental results. It presents a better prediction for the load-carrying capacity of steel-to-laminated bamboo dowel connections with slotted-in steel plate.

An Experimental Study on Ultimate Behaviors of Double Shear Bolted Connections with Ferritic Stainless Steel

2013 ◽  
Vol 664 ◽  
pp. 976-979
Author(s):  
Tae Soo Kim ◽  
Min Seung Kim
Keyword(s):  
Stainless Steel ◽  
Ferritic Stainless Steel ◽  
Test Results ◽  
Bolted Connections ◽  
Bolted Connection ◽  
Double Shear ◽  
Loading Direction ◽  
Constant Dimension ◽  
End Distance ◽  
Bolt Diameter

Based on the existing test results of single shear bolted connection fabricated with cold-formed ferritic stainless steel, in this study, the experiment for double shear bolted connections with bolt arrangements(1×2, 2×2) and end distance parallel to the loading direction as main variables has been performed. Specimens were planed with a constant dimension of edge distance perpendicular to the loading direction, bolt diameter, pitch and gauge. Ultimate strength and fracture mode obtained from test results were compared with those predicted by current American and Japan design codes such as AISI and AIJ.

Experimental study and numerical simulation of reinforced concrete walls with lightened blocks connected with bolts

2020 ◽  
Vol 23 (9) ◽  
pp. 1960-1974
Author(s):  
Xin-wei Miao ◽  
Wei Huang ◽  
Ke Ling ◽  
Yan-fang Xu ◽  
Jia-rui Zhang ◽  
...  
Keyword(s):  
Bearing Capacity ◽  
Plate Thickness ◽  
Monotonic Loading ◽  
Initial Stiffness ◽  
Cumulative Energy ◽  
Obvious Effect ◽  
Bolted Connection ◽  
Reversed Loading ◽  
Composite Walls ◽  
Bolt Diameter

To verify the feasibility and mechanical properties of assembled composite walls, three assembled composite walls were designed. Two bolted connection specimens in horizontal joints were tested under low-cycle reversed loading and monotonic loading, respectively. Then, the failure mechanism, hysteretic behaviour, ductility, energy dissipation capacity, slip and stress distribution of the connectors were studied. A specimen with grouting sleeve connection was tested under low-cycle reversed loading as a contrast specimen. In addition, a specimen with bolted connection under monotonic loading was simulated by the finite element method to study the effects on structural performance of the connectors and walls. The results show that the bolted connection is feasible, and compared with the grouting sleeve connection, the bearing capacity of the bolted connection specimen decreases by 17%, the displacement ductility coefficient increases by 52% and the cumulative energy consumption increases by 62%. Slippage between the connectors and the wallboard occurs mainly between the yield point and the peak point of the specimens. With the increase in plate thickness, the bearing capacity and initial stiffness increased, but there was no obvious effect on the appearance of the slip section. The larger the bolt diameter, the later the slip section forms. However, the bolt diameter does not have an obvious effect on the bearing capacity of the specimens.

scholarly journals Effect of Replacing the Main Reinforcement by Sheet Steel Plate in Reinforced Concrete Beams

2021 ◽  
Vol 14 (3) ◽  
pp. 141-151
Author(s):  
Khalid Ibrahim ◽  
Ahmed A. Mansor ◽  
Bilal J. Noman ◽  
Wisam D. Salman ◽  
Ahlam S. Mohammed
Keyword(s):  
Reinforced Concrete ◽  
Ultimate Load ◽  
Steel Plate ◽  
Concrete Beams ◽  
Cross Sectional Area ◽  
Reinforced Concrete Beams ◽  
Sectional Area ◽  
Cross Sectional ◽  
Yield Load ◽  
Steel Bar

In recent years, new methods have developed utilizing steel plates instead of deformed steel bar reinforcement in the concrete beams. This paper presents the utilization of a new proposed approach for replacing the main flexural reinforcement concrete beams by steel checker plates of (6mm) thickness. Four reinforced concrete beams were cast and tested under two-point load. All beams had the same cross-sectional area of reinforcement and the dimensions of 210 cm in length, 35 cm in height and 25cm in width. The result show there was a reduction in crack load, yield load, and ultimate load of steel plate as compared to steel bar, Whereas increased with increasing cross-sectional area of the steel. Once, the increment in crack load and yield load of steel plate were 25.5% and 16,67% more than steel bar whereas the same increment was found in ultimate load for both steel bar and steel plate. The measured crack load and ductility for steel plate was 16.7% more than steel bar when increasing cross-sectional area of steel. The deflection past of failure for steel plate has a considerable deflection before failure than steel bar. Finally, the observations show cracks have been much wider and less in range for all steel plate samples in comparison with the steel bar.

Analysis on the Mechanical Properties of Connections on Cold-Formed Square Steel Column and Beam

2010 ◽  
Vol 163-167 ◽  
pp. 676-680 ◽  
Author(s):  
Yong Yao ◽  
Yun Peng Chu
Keyword(s):  
Mechanical Properties ◽  
Bearing Capacity ◽  
Ultimate Load ◽  
Plastic Hinge ◽  
Steel Structure ◽  
Initial Stiffness ◽  
Yield Load ◽  
Finite Element Software ◽  
Steel Column ◽  
Welding Joints

The profiled steel structure of cold-formed square steel tubular has better seismic behavior and is suitable for reconstruction in seismic disastrous area. The joint is the key to the design of structure, so it needs further research on the mechanical properties. Using finite element software ANSYS to analysis two kinds of welding joints which under monotonic loading, the results show that: (1)The ultimate bearing capacity and yield load of improved joints greatly enhanced compared to conventional joints, and the plastic hinge moved to outward from the beam and column interface. (2)Until loading to the yield load, the improved joints has longer yield platform and better ductility. (3)The axial compression ratio has stronger effect on the conventional joints than improved joints on bearing capacity and initial stiffness.(4)Until loading to the ultimate load, degree of stress concentration on the improved joints is less than conventional joints, and the plastic hinge moved to outward, avoid brittle fracture of the joint.

scholarly journals Experimental/Numerical Evaluation of Steel Trapezoidal Corrugated Infill Panels with an Opening

2021 ◽  
Vol 11 (7) ◽  
pp. 3275
Author(s):  
Majid Yaseri Gilvaee ◽  
Massood Mofid
Keyword(s):  
Energy Dissipation ◽  
Ultimate Strength ◽  
Steel Plate ◽  
Shear Walls ◽  
Experimental Results ◽  
Structural Performance ◽  
Initial Stiffness ◽  
Infill Panels ◽  
Energy Dissipation Capacity ◽  
Ductility Ratio

This paper investigates the influence of an opening in the infill steel plate on the behavior of steel trapezoidal corrugated infill panels. Two specimens of steel trapezoidal corrugated shear walls were constructed and tested under cyclic loading. One specimen had a single rectangular opening, while the other one had two rectangular openings. In addition, the percentage of opening in both specimens was 18%. The initial stiffness, ultimate strength, ductility ratio and energy dissipation capacity of the two tested specimens are compared to a specimen without opening. The experimental results indicate that the existence of an opening has the greatest effect on the initial stiffness of the corrugated steel infill panels. In addition, the experimental results reveal that the structural performance of the specimen with two openings is improved in some areas compared to the specimen with one opening. To that end, the energy dissipation capacity of the specimen with two openings is obtained larger than the specimen with one opening. Furthermore, a number of numerical analyses were performed. The numerical results show that with increasing the thickness of the infill plate or using stiffeners around the opening, the ultimate strength of a corrugated steel infill panel with an opening can be equal to or even more than the ultimate strength of that panel without an opening.

Effect of Axial Compression Ratio on Ductility and Bearing Capacity of Specially Shaped Columns with HRB500 Reinforcement

2012 ◽  
Vol 204-208 ◽  
pp. 1066-1069
Author(s):  
Yan Jun Li ◽  
Ping Liu
Keyword(s):  
Bearing Capacity ◽  
Axial Compression ◽  
Compression Ratio ◽  
Ultimate Load ◽  
Deformation Capacity ◽  
Displacement Ductility ◽  
Yield Load ◽  
Axial Compression Ratio ◽  
Low Cyclic Loading ◽  
Specially Shaped Column

Four specially shaped columns with HRB500 reinforcement were tested under low cyclic loading. The hysteretic curve, yield load, ultimate load, displacement ductility and rigidity degradation were compared in order to research the effect of axial compression ratio on ductility and bearing capacity of specially shaped column with HRB500 reinforcement. It is shown that the axial compression ratio has greater influence on ductility and bearing capacity. With the increase of axial compression ratio, the bearing capacity of HRB500 reinforcement concrete specially shaped column can be enhanced while the deformation capacity becomes worse. The hysteretic characteristic of specially shaped columns with HRB500 reinforcement is improved and the stiffness degeneration becomes slow with the decrease of axial compression ratio.

scholarly journals Ultimate Load Behaviour of Perforated Steel Plate Girders with Inclined Stiffeners

2017 ◽  
Vol S (1) ◽  
pp. 47-55
Author(s):  
Mohd Yazmil Md. Yatim ◽  
◽  
Mohd Reza Azmi ◽  
Yew Ling Lau ◽  
Muhammad ‘Ariff Putra Ansaruddin Agus ◽  
...  
Keyword(s):  
Ultimate Load ◽  
Steel Plate ◽  
Plate Girders
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