Study on earthquake resistance test of L-shaped concrete-filled rectangular composite steel tubular columns

Author(s):  
Jun Huang ◽  
Shaobin Dai ◽  
Jixiong Liu
2014 ◽  
Vol 501-504 ◽  
pp. 1633-1638
Author(s):  
Jun Huang ◽  
Yi Chao Zhang ◽  
Shao Bin Dai

By using finite element software ABAQUS, the nonlinear finite element analysis of earthquake resistance behavior of T-shaped concrete-filled rectangular composite steel tubular columns is carried out, furthermore, the analysis results and the corresponding experiment results are compared. The results indicate that the calculated value of ultimate bearing capacity is less than the experimental value, and the results of FEM analysis can match the experiment results better, and thus, it can better reflect the earthquake resistance behaviors of the specimens.


2011 ◽  
Vol 368-373 ◽  
pp. 441-447
Author(s):  
Jun Huang ◽  
Shao Bin Dai ◽  
Ji Xiong Liu

By using finite element software ABAQUS, the nonlinear finite element analysis of earthquake resistance behavior of L-shaped concrete-filled rectangular composite steel tubular columns is carried out, furthermore, the analysis results and the corresponding experimental results are compared. The results indicate that the finite element calculated value of ultimate bearing capacity is less than experimental value; axial compression ratio of the specimen has little affect on its ultimate bearing capacity and earthquake resistance behaviors; the results of FEM analysis can match the experiment results better, and thus, it can better reflect the earthquake resistance behaviors of the specimens.


2012 ◽  
Vol 446-449 ◽  
pp. 175-179 ◽  
Author(s):  
Jun Huang ◽  
Shao Bin Dai ◽  
Zhong Peng

Through orthogonal test, the main influencing factors to the ultimate bearing capacity, ductility and energy consuming ability of L-shaped concrete-filled rectangular composite steel tubular columns are studied. Research results show as follows: the most important factor in deciding the ultimate bearing capacity is the steel tube wall thickness; the most important factor in deciding the ductility factor is the steel tube wall thickness; the most important factor in deciding the equivalent viscous damping coefficient is the strength classes of concrete. At the same time the best level combination of these factors are got.


1996 ◽  
Vol 75 (02) ◽  
pp. 267-269 ◽  
Author(s):  
H Engel ◽  
L Zwang ◽  
H H D M van Vliet ◽  
J J Michiles ◽  
J Stibbe ◽  
...  

SummaryThe currently used activated Protein C resistance test demonstrated to be of limited diagnostic value for the detection of the mutant Factor V Leiden. Moreover, this assay is not useful for patients under anticoagulant therapy. A modification of the APC resistance test, applying Factor V deficient plasma is described which demonstrates a specificity and sensitivity of 1.0. The superiority of the modified APC resistance test over the existing APC resistance test was verified by genotyping.For that purpose, the Amplification Refractory Mutation System (ARMS) was applied to the detection of the G to A mutation at position 1691 in the gene encoding coagulation Factor V. The mutation at that position could be easily detected by using each of two allele-specific oligonucleotide primers concomitantly with one common primer in two separate polymerase chain reactions, thereby amplifying a fragment of 186 base-pairs of the Factor V gene.


1995 ◽  
Vol 74 (03) ◽  
pp. 995-995 ◽  
Author(s):  
K W E Denson ◽  
S V Reed ◽  
M E Haddon

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