scholarly journals Analysis and Calculation of Stability Coefficients of Cross-Laminated Timber Axial Compression Member

Polymers ◽  
2021 ◽  
Vol 13 (23) ◽  
pp. 4267
Author(s):  
Qi Ye ◽  
Yingchun Gong ◽  
Haiqing Ren ◽  
Cheng Guan ◽  
Guofang Wu ◽  
...  
Keyword(s):  
Bearing Capacity ◽  
Axial Compression ◽  
Calculation Method ◽  
National Standards ◽  
Test Results ◽  
Average Deviation ◽  
Stability Coefficient ◽  
Cross Laminated Timber ◽  
Stability Bearing Capacity ◽  
The Stability

Cross-laminated timber (CLT) elements are becoming increasingly popular in multi-storey timber-based structures, which have long been built in many different countries. Various challenges are connected with constructions of this type. One such challenge is that of stabilizing the structure against vertical loads. However, the calculations of the stability bearing capacity of the CLT members in axial compression in the structural design remains unsolved in China. This study aims to determine the stability bearing capacity of the CLT members in axial compression and to propose the calculation method of the stability coefficient. First, the stability coefficient calculation theories in different national standards were analyzed, and then the stability bearing capacity of CLT elements with four slenderness ratios was investigated. Finally, based on the stability coefficient calculation formulae in the GB 50005-2017 standard and the regression method, the calculation method of the stability coefficient for CLT elements was proposed, and the values of the material parameters were determined. The result shows that the average deviation between fitting curve and calculated results of European and American standard is 5.43% and 3.73%, respectively, and the average deviation between the fitting curve and the actual test results was 8.15%. The stability coefficients calculation formulae could be used to predict the stability coefficients of CLT specimens with different slenderness ratios well.

Comparisons of EWM and DSM for Load-Carrying Capacity of Cold-Formed Lipped Channel Columns under Axial Compression

2012 ◽  
Vol 446-449 ◽  
pp. 94-97
Author(s):  
Song Jun Zheng ◽  
Yan Wu Yang ◽  
De Fa Sun
Keyword(s):  
Axial Compression ◽  
Carrying Capacity ◽  
Steel Structures ◽  
Thin Wall ◽  
Load Carrying Capacity ◽  
Effective Width ◽  
Test Results ◽  
Stability Bearing Capacity ◽  
Load Carrying ◽  
The Stability

The stability bearing capacity of cold-formed lipped channel columns under axial compression is presented. It is shown that DSM is valid for prediction the stability capacity of cold-formed lipped channel columns under axial compression. The results calculated by suggested method agree quite well with the effective width method in Technical code of cold-formed thin-wall steel structures (GB50018-2002) and the test results are safe.

Stability Coefficient of Interlocking Compressed Earth Block Masonry under Axial Compression

2020 ◽  
Author(s):  
Tianya Wang ◽  
Yihong Wang ◽  
Guiyuan Zeng ◽  
Jianxiong Zhang ◽  
Dan Shi
Keyword(s):  
Compressive Strength ◽  
Axial Compression ◽  
Design Guidelines ◽  
Stability Coefficient ◽  
Strength Failure ◽  
Compressed Earth Block ◽  
Out Of Plane ◽  
The Stability ◽  
Earth Block ◽  
Plane Deformations

To investigate the effects of the height-thickness ratio (β) on the mechanical properties and stability coefficients (φs) of interlocking compressed earth block (ICEB) masonry members under axial compression, four groups of specimens with different β of 3.75, 6.75, 11.25, and 14.25 were tested, thereby assessing their stress process, failure mode, compressive strength, and in- and out-of-plane deformations. All the specimens underwent brittle failure under axial compression: the compressive strength was found to decrease in a range from 5.6% to 43% with increasing β, whereas the initial stacking defects and the in- and out-of-plane deformations increased. The specimens became less stable, and we noticed that the overall damage was caused by strength failure and not instability failures. Because the stability coefficient of ICEB-based masonry components cannot be calculated as those of more conventional brickwork, we combined our results with well-established masonry design guidelines and derived an interlocking improvement coefficient.

Study on Experimental Behavior of Concrete Circular Column Confined by HFRP under Axial Compression

2012 ◽  
Vol 450-451 ◽  
pp. 491-494 ◽  
Author(s):  
Shun De Xu ◽  
Li Juan Li ◽  
Yong Chang Guo
Keyword(s):  
Experimental Study ◽  
Bearing Capacity ◽  
Axial Compression ◽  
Test Results ◽  
Hybrid Fiber ◽  
Circular Column ◽  
Experimental Behavior ◽  
Glass Frp ◽  
Frp Sheet

A loading comparison experimental study on concrete circular columns confined by hybrid fiber sheets of carbon FRP sheet, basalt FRP sheet, and glass FRP sheet is carried out to analyze their failure feature, bearing capacity, ductility and economy. Test results show that HFRP can increase the ductility of column and deduce the price on the precondition of having enough bearing capacity.

On the Stability Capacity of Steel Tube Filled with Steel-Reinforced Concrete Column Subject to Axial Compression

2012 ◽  
Vol 490-495 ◽  
pp. 3177-3181
Author(s):  
Xiao Liu ◽  
Lei Zhao
Keyword(s):  
Reinforced Concrete ◽  
Bearing Capacity ◽  
Axial Compression ◽  
Energy Method ◽  
Slenderness Ratio ◽  
Steel Tube ◽  
Least Square ◽  
Stability Coefficient ◽  
Steel Reinforced Concrete ◽  
Axial Stability

Steel tube filled with steel-reinforced concrete (STSRC) is a new kind of heavy load column, which made by inserting steel skeletons into the steel tube, then injecting the concrete to the tube. In order to study the combined column’s stability subject to axial compression, we use energy method and numerical methods analysis derives the formula of stability coefficient in which slenderness ratio as the main parameters. Using the 1/1000 column length as the initial deflection of the STSRC columns by FORTUNE calculation program, stability coefficient is produced through comparison and analysis between calculated results from quantile regression and that from ordinary least square regression respectively. According to the computer results and energy method, the formula for calculating the axial stability bearing capacity of STSRC was established. A good agreement between the calculation results and testing results illustrates, which is feasible to using the calculating formula to calculate the bearing capacity of STSRC

scholarly journals Parameter analysis of stability bearing capacity of bottom frame beam for container building

2019 ◽  
Vol 136 ◽  
pp. 04062
Author(s):  
Songfeng Sun ◽  
Penggang Guo ◽  
Qingyu Zhang ◽  
Baoguang Chen ◽  
Pingping Zhang
Keyword(s):  
Finite Element Method ◽  
Bearing Capacity ◽  
Parameter Analysis ◽  
Factors Affecting ◽  
Control Factors ◽  
Stability Bearing Capacity ◽  
Analysis Of Stability ◽  
The Stability ◽  
Bottom Frame ◽  
The Web

In this paper, the bottom frame beam of container building is analyzed by finite element method, and compared with the experimental results, the accuracy of the model is verified to meet the needs of the analysis. On this basis, by changing the stiffening position of the upper flange, the height of the web, the load layout and the thickness of the wall, the variation of the stability bearing capacity of the bottom frame beam was studied, the control factors affecting the stability bearing capacity of the bottom frame beam were obtained, and the selection suggestions were given.

Stability Bearing Capacity of Dendritic Arms in Tainter Gate

2015 ◽  
Vol 733 ◽  
pp. 464-467
Author(s):  
Yong Kang Shen ◽  
Zheng Zhong Wang ◽  
Chun Long Zhao
Keyword(s):  
Stability Analysis ◽  
Bearing Capacity ◽  
Effective Length ◽  
Analysis Method ◽  
Analysis Model ◽  
Minimum Potential Energy ◽  
Stability Bearing Capacity ◽  
Minimum Potential ◽  
The Stability ◽  
Radial Gate

The new arms form of radial gate—dendritic arms is introduced for the proper mechanical mechanism, however the stability design is very difficult. According to the stability theory of structure, the stability analysis model of step column with lateral restraints was proposed for dendritic arms, some equations was derived from the principle of minimum potential energy, the practical formulas of buckling bearing capacity and effective length coefficient were provided. According to an example, the accuracy on formulas was verified by finite analysis method.

scholarly journals Experimental Study of the Seismic Performance of L-Shaped Columns with 500 MPa Steel Bars

2014 ◽  
Vol 2014 ◽  
pp. 1-11 ◽  
Author(s):  
Tiecheng Wang ◽  
Xiao Liu ◽  
Hailong Zhao
Keyword(s):  
Experimental Study ◽  
Bearing Capacity ◽  
Failure Mode ◽  
Axial Compression ◽  
Seismic Performance ◽  
Axial Load ◽  
Test Results ◽  
Characteristic Value ◽  
Steel Bars ◽  
Curvature Ductility

Based on tests on six L-shaped RC columns with 500 MPa steel bars, the effect of axial compression ratios and stirrup spacing on failure mode, bearing capacity, displacement, and curvature ductility of the specimens is investigated. Test results show that specimens with lower axial load and large stirrup characteristic value (larger than about 0.35) are better at ductility and seismic performance, while specimens under high axial load or with a small stirrup characteristic value (less than about 0.35) are poorer at ductility; L-shaped columns with 500 MPa steel bars show better bearing capacity and ductility in comparison with specimens with HRB400 steel bars.

Research of Direct Calculation Method for Design on Cross-Section of Retaining Wall

2013 ◽  
Vol 639-640 ◽  
pp. 714-717
Author(s):  
Wei Huang
Keyword(s):  
Bearing Capacity ◽  
Cross Section ◽  
Calculation Method ◽  
Calculated Result ◽  
Conversion Factor ◽  
Retaining Wall ◽  
Direct Calculation ◽  
Allowable Range ◽  
The Stability ◽  
Base Width

Based on meeting the requirement of ground bearing capacity, the allowable range of anti-overturning safety factor is derived. The relative parameters are expressed with base width and the relation graphs of conversion factor are presented, and then can design the cross-section of retaining wall directly by combining the stability requirement of anti-sliding. The calculated result shows that this method makes the design simple and reliable. It may be a reference for engineers.

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