scholarly journals Effect on Deformation due to Presence of Extra Bars in Column Heads

2020 ◽  
Vol 9 (4) ◽  
pp. 1919-1922
Keyword(s):  
Experimental Study ◽  
Axial Load ◽  
Lateral Deformation ◽  
Ansys Software ◽  
Experimental Values ◽  
Lateral Deformations

The purpose of the work is to investigate the effect of additional bars at column ends, when column is subjected to axial load. Due to this; reduction in the axial and lateral deformations of heads of the column are examined. The experimental study examined both ends' behaviour after providing extra bar at top head and bottom head of the column and experimental values indicate that presence of extra bars in column heads decreases axial and lateral deformation in the heads. The experimental values of axial and lateral deformations were validated with the help of ANSYS software. The variation in these values with respect to percentage of steel and grade of concrete is also studied.

Experimental Study of the Rotary Filling Piles with Large-Diameter under the Axial Load

2012 ◽  
Vol 594-597 ◽  
pp. 527-531
Author(s):  
Wan Qing Zhou ◽  
Shun Pei Ouyang
Keyword(s):  
Experimental Study ◽  
Axial Load ◽  
Load Transfer ◽  
Soft Soil ◽  
Large Diameter ◽  
Shaft Resistance ◽  
Tip Resistance ◽  
Soil Foundation ◽  
Soft Soil Foundation ◽  
Deep Soft Soil

Based on the experimental study of rotary filling piles with large diameter subjected to axial load in deep soft soil, the bearing capacity behavior and load transfer mechanism were discussed. Results show that in deep soft soil foundation, the super–long piles behave as end-bearing frictional piles. The exertion of the shaft resistance is not synchronized. The upper layer of soil is exerted prior to the lower part of soil. Meanwhile, the exertion of shaft resistance is prior to the tip resistance. For the different soil and the different depth of the same layer of soil, shaft resistance is different.

Behavior of implant and abutment sets of three different connections during the non-axial load application: An in vitro experimental study using a radiographic method

2021 ◽  
pp. 1-12
Author(s):  
Sergio Alexandre Gehrke ◽  
Berenice Anina Dedavid ◽  
José Manuel Granero Marín ◽  
Luigi Canullo
Keyword(s):  
Experimental Study ◽  
Digital Radiography ◽  
Axial Load ◽  
In Vitro Study ◽  
Vitro Study ◽  
Load Application ◽  
Radiographic Method ◽  
Radiography System ◽  
Torque Values

BACKGROUND: During the masticatory cycle, loads of different intensities and directions are received by the dental structures and/or implants, which can cause micromovements at the junction between the abutment and implant. OBJECTIVE: The objective of this in vitro study was to evaluate the behavior of three different implant connections subjected to different load values using a digital radiography system. Additionally, the torque values for removing the abutment screws were also measured and compared. METHODS: Ninety sets of implant and abutment (IA) were used, divided into three groups according to the type of connection (n = 30 per group): EH group, external hexagon type connection; IH group, internal hexagon connection; and, MT group, Morse taper connection. RESULTS: MT group showed the better vertical misfit behavior at the three intensity of load applied, in comparison with EH and IH groups. In the analysis of torque maintenance (detorque test), MT group showed higher values of detorque when compared with the measured values of EH and IH groups (p < 0.001). CONCLUSIONS: The IA sets of EH and IH groups showed a microgap in all levels of applied loads, unlike the MT group this event was not observed. In the detorque test, MT group increase in the torque values when compared to the initial torque applied, unlike EH and IH groups showed a decrease in the initially torque applied in all conditions tested. A positive correlation was detected between the misfit and detorque values.

scholarly journals An Experimental Study on Large Lateral Deformation Behavior of Pile Groups in Ground of Coahesive Soil.

2000 ◽  
pp. 223-233
Author(s):  
Isamu ONO ◽  
Kiyoomi YAMADA ◽  
Yukio KIKUTA ◽  
Sei MATSUURA ◽  
Katsuya OKADA
Keyword(s):  
Experimental Study ◽  
Deformation Behavior ◽  
Lateral Deformation ◽  
Pile Groups

Experimental Study on Bearing Capacity of Q690 High-Strength Steel Tubes under Axial Load

2014 ◽  
Vol 638-640 ◽  
pp. 101-104
Author(s):  
Yi Liang Peng ◽  
Guo Tian Li ◽  
Xuan Min Han ◽  
Lei Chen
Keyword(s):  
Experimental Study ◽  
Bearing Capacity ◽  
High Strength Steel ◽  
Axial Load ◽  
High Strength ◽  
Steel Grade ◽  
Stability Factor ◽  
Steel Tubes ◽  
Steel Members ◽  
The Stability

With the rapid development of power transmission and transformation projects in China, steel supporting structure has already became the most popular structural form for these structures. However, the limit of steel grade used for current substation supporting structures is normally Q420, compared with that of Q690 used in other countries. When the high-strength steel is used, the geometric parameters of section for members become smaller, and the stability of members is the most important factors to influence the bearing capacity of structures. The stability factor for axial loaded steel members in current 《Code for design of steel structures》(GB50017-2003) was derived based on the experimental results for steel members with lower steel grade, the results are inevitably different from those for high-strength steel members. To make the calculations of Q690 high-strength steel tubes more accurate and reasonable, this paper conducts experimental study on the bearing capacity of Q690 high-strength steel tubes under axial load to provide scientific basis for practical design of these structures.

scholarly journals EXPERIMENTAL STUDY ON RESIDUAL AXIAL LOAD CAPACITY OF R/C COLUMNS

2007 ◽  
Vol 72 (619) ◽  
pp. 127-132 ◽  
Author(s):  
Daisuke KATO ◽  
Zhuzhen LI ◽  
Yukiko NAKAMURA ◽  
Yoshimasa HONDA
Keyword(s):  
Experimental Study ◽  
Axial Load ◽  
Load Capacity ◽  
Axial Load Capacity
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