scholarly journals Effect of Spacing of Tie Reinforcement and Cross Ties on Lateral Confinement of Concrete.

2002 ◽  
pp. 91-106 ◽  
Author(s):  
Junichi SAKAI ◽  
Kazuhiko KAWASHIMA
Keyword(s):  
Lateral Confinement

Effect of lateral confinement on short columns under uni-axial compression

2020 ◽  
Author(s):  
T. Siva Sai Hoshitha ◽  
T. Chandrasekhar Rao ◽  
T. D. Gunneswara Rao
Keyword(s):  
Axial Compression ◽  
Lateral Confinement ◽  
Short Columns

scholarly journals Dark-level trapping, lateral confinement, and built-in electric field contributions to the carrier dynamics in c-plane GaN/AlN quantum dots emitting in the UV range

2021 ◽  
Vol 129 (5) ◽  
pp. 054301
Author(s):  
M. Hrytsaienko ◽  
M. Gallart ◽  
M. Ziegler ◽  
O. Crégut ◽  
S. Tamariz ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Electric Field ◽  
Carrier Dynamics ◽  
Lateral Confinement ◽  
Uv Range

scholarly journals Analysis of Bearing Strength of Post-Tensioning Anchorage Zone with Respect to Relative Bearing Area and Lateral Confinement Design

2021 ◽  
Vol 11 (18) ◽  
pp. 8386
Author(s):  
Jin-Kook Kim ◽  
Jun-Mo Yang
Keyword(s):  
Error Rate ◽  
Small Diameter ◽  
Average Error ◽  
Displacement Curve ◽  
Proportional Limit ◽  
Lateral Confinement ◽  
Bearing Strength ◽  
Bearing Plate ◽  
Load Displacement ◽  
Post Tensioning

This study aimed to evaluate the bearing strength of the post-tensioning anchorage zone with respect to the relative bearing area and lateral confinement design of spiral and stirrup rebars. Eleven specimens were fabricated and tested to fracture in accordance with EAD 160004-00-0301. Load-displacement curves and fracture modes were analyzed. Then, the conventional design equation for the bearing strength and previous findings on the relative bearing area was re-investigated in comparison with the test results. From the test, the representative findings are as follows: (1) A specimen with relatively small size and less lateral reinforcement is more likely to be affected by the wedge action of the anchorage device; however, a larger specimen is affected by both concrete crushing and/or spalling; (2) The behavior of the anchorage zone is markedly affected by the local behavior near the anchorage bearing plate, and the sectional efficiency is mostly determined by A/Ag; (3) For specimens with A/Ag = 9.52, the proportional limit of the load-displacement curve is determined by the yield of spiral rebar or fracture of the bearing plate, but the later part of the curve is determined by lateral confinement; (4) The maximum A/Ag that could produce 100% sectional efficiency is about 2.0 for the anchorage bearing plate used in the test; (5) For a fully confined specimen with a small-diameter spiral for minimum anchorage spacing, the stirrup rebar design mainly influences crack occurrence and patterns when the size of the specimen is equal to the minimum anchorage spacing; however, the area of the load-displacement curve after the proportional limit as well as crack occurrence and patterns are also influenced by stirrup rebar design when A/Ag is relatively large; (6) Finally, a revised design model is proposed to effectively estimate the ultimate bearing strength of the post-tensioning anchorage zone without respect to A/Ag. From the comparison of the design equations, it was concluded that the proposed equation provides a more reliable prediction with a 14.0% average error rate and 5.7% standard deviation of error rate.

Effects of Lateral Confinement on Order in Spherical Domain Block Copolymer Thin Films

2003 ◽  
Vol 36 (18) ◽  
pp. 6831-6839 ◽  
Author(s):  
Rachel A. Segalman ◽  
Alexander Hexemer ◽  
Edward J. Kramer
Keyword(s):  
Thin Films ◽  
Block Copolymer ◽  
Lateral Confinement ◽  
Spherical Domain ◽  
Domain Block
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