Grips for testing of chemical (adhesive) anchors with periodic profile rebar

2021 ◽  
pp. 45-54
Author(s):  
Marina Pavlova ◽  
◽  
Vladimir Zakharov ◽  
Maksim Pavlenko ◽  
Polina Vakhturova ◽  
...  
Keyword(s):  
Adhesive Anchors ◽  
Periodic Profile

Современные приборы для испытаний на «вырыв» не комплектуются специальными захватами для связей и арматуры периодического профиля. Предложен новый тип захвата для испытаний муфта-захват. Проведены лабораторные испытания химических анкеров с арматурой периодического профиля с применением новых типов захватов (муфт-захватов). Выполнен сравнительный анализ полученных результатов испытаний анкеров с применением четырех типов захватов. Сформулированы предложения по применению захватов при проведении натурных испытаний на объекте и в лабораторных условиях.

scholarly journals The Analytical Study of the Value of Adhesion of Cement Gel between Reinforcement and Concrete

2020 ◽  
Vol 26 (3) ◽  
pp. 483-495
Author(s):  
A. N. Nikolyukin ◽  
◽  
V. P. Yartsev ◽  
S. A. Mamontov ◽  
I. I. Kolomnikova ◽  
...  
Keyword(s):  
Mathematical Model ◽  
Numerical Modeling ◽  
Numerical Experiment ◽  
Bearing Capacity ◽  
Analytical Study ◽  
Bonding Process ◽  
Periodic Profile

Disruption of the adhesion of reinforcement to concrete causes significant deformation of the structure, which can subsequently lead to the loss of its bearing capacity. There is a need to study the bonding process between concrete and reinforcement under various influences. The results of a numerical experiment on pulling out reinforcement of periodic profile from concrete are presented. A mathematical model to study the processes taking place in the field of embedding reinforcement in concrete has been built. The results of numerical modeling are described.

scholarly journals Assessment of shear capacity of adhesive anchors for structures using neural network based model

2015 ◽  
Vol 49 (3) ◽  
pp. 1065-1077 ◽  
Author(s):  
Esra Mete Güneyisi ◽  
Mehmet Gesoğlu ◽  
Erhan Güneyisi ◽  
Kasım Mermerdaş
Keyword(s):  
Neural Network ◽  
Shear Capacity ◽  
Adhesive Anchors

scholarly journals TENSILE AND SHEAR BEHAVIORS OF POST-INSTALLED ADHESIVE ANCHORS IN BRICK CONSTRUCTION

2016 ◽  
Vol 22 (52) ◽  
pp. 983-986
Author(s):  
Mutsumi OSHIMA ◽  
Kimihiko MORITA ◽  
Tomoaki SUGIYAMA ◽  
Toshikazu HANAZATO
Keyword(s):  
Adhesive Anchors ◽  
Shear Behaviors

scholarly journals Field distribution, HPM multipactor, and plasma discharge on the periodic triangular surface

2010 ◽  
Vol 28 (1) ◽  
pp. 185-193 ◽  
Author(s):  
C. Chang ◽  
G.Z. Liu ◽  
J.Y. Fang ◽  
C.X. Tang ◽  
H.J. Huang ◽  
...  
Keyword(s):  
Field Distribution ◽  
Short Pulse ◽  
Slope Angle ◽  
Field Enhancement ◽  
Plasma Discharge ◽  
Breakdown Threshold ◽  
High Power Microwave ◽  
X Band ◽  
Power Microwave ◽  
Periodic Profile

AbstractThe field distribution and the restraint effect of multipactor and plasma discharge on the periodic triangular surface have been theoretically and experimentally analyzed. It has been found by computational and simulative analysis that the periodic profile can quickly restrain or weaken multipactor and plasma discharge in low pressure within several microwave periods. Considering the field enhancement, increasing the slope angle, advancing the electric field, and lowering the frequency can enhance the multipactor suppression. X-band giga-watt high power microwave experiment with 20 ns short pulse was conducted. It was demonstrated that the periodic profile can effectively improve the breakdown threshold and slower the speed of tail erosion.

Production of high-strength reinforcing wire with a periodic profile

2009 ◽  
Vol 39 (4) ◽  
pp. 349-350
Author(s):  
V. P. Rudakov ◽  
E. A. Pudov ◽  
N. V. Litvinova ◽  
A. A. D’yachkova
Keyword(s):  
High Strength ◽  
Periodic Profile

Axial Performance of Various Strengthening Methods Applied on Full-Scale Rectangular RC Columns

2011 ◽  
Vol 82 ◽  
pp. 618-623 ◽  
Author(s):  
Pei Ching Chen ◽  
Min Lang Lin ◽  
Yin Han Wu
Keyword(s):  
Axial Force ◽  
Full Scale ◽  
Reinforcement Ratio ◽  
The Other ◽  
Transverse Reinforcement ◽  
Rc Columns ◽  
Different Shapes ◽  
Adhesive Anchors ◽  
Cfrp Wrapping ◽  
Better Than

The performance of RC columns subjected to axial force is relative to the confinement. CFRP wrapping, a generally adopted retrofit method, was proved not to effectively provide confining force due to the bulging effect on the column face. Therefore, this paper is focused on the performance of the retrofitted full-scale rectangular RC columns using different retrofit schemes including the proposed CFRP wrapping conjugated with CFRP anchors method. A total of eleven rectangular RC columns with low transverse reinforcement ratio were constructed. Among them, one was tested as benchmark; one was purposely constructed with larger transverse reinforcement ratio; five were retrofitted by using CFRP wrapping and CFRP anchors; and the other four were retrofitted by using different shapes of steel jacketing alone or with adhesive anchors. All the specimens were subjected to monotonic incremental axial force until failure occurred. Experimental results demonstrated that the ductility of the specimens retrofitted by using CFRP wrapping with CFRP anchors was significantly improved compared with those retrofitted by using only CFRP wrapping. On the other hand, the specimen with octagonal steel jacketing performed better than all other specimens not only on ductility but also on strength. Finally, a novel numerical model considering the contribution of the retrofit material will be proposed and validated in the future.

Muller matrix for laser light reflected from surface with small periodic profile

1992 ◽  
Author(s):  
Yuri A. Avetisyan ◽  
V. A. Trifonov ◽  
Valery V. Tuchin
Keyword(s):  
Laser Light ◽  
Small Periodic ◽  
Periodic Profile

EMERGENCE OF A PERIODIC PROFILE OF THE TIME SERIES OF POPULATION IN THE MINORITY GAME

2004 ◽  
Vol 18 (22) ◽  
pp. 3015-3025 ◽  
Author(s):  
CHIA-LI HSIEH ◽  
HSEN-CHE TSENG ◽  
HUNG-JUNG CHEN
Keyword(s):  
Time Series ◽  
Critical Point ◽  
Periodic Pattern ◽  
Minority Game ◽  
Periodic Behavior ◽  
Distinctive Features ◽  
Periodic Profile

Based on the results of existing studies of the minority game, we further explored the periodic properties of the time series of population and discovered its exhibition of a separate three-bump distribution, in which an unusual periodic pattern is existent. By defining "the variance of scores" of all the strategies, we found a method to identify the distinctive features between periodic and non-periodic distributions. We also found there exists a critical point at which periodic behavior disappears when N goes from large to small.

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