scholarly journals Push-Out Test and FEM Analysis of Continuous Shear Connector

2021 ◽  
Vol 1203 (3) ◽  
pp. 032080
Author(s):  
Patricia Vanova ◽  
Daniel Dubecky ◽  
Vincent Kvocak
Keyword(s):  
Slovak Republic ◽  
Concrete Bridges ◽  
Bottom Flange ◽  
Element Analysis ◽  
Shear Connectors ◽  
Excellent Research ◽  
Finite Element Analysis Simulation ◽  
Continuous Shear ◽  
Push Out ◽  
Composite Steel

Abstract Composite steel concrete bridges with embedded continuous shear connectors are one of the newer popular options for short span (up to 20 m) bridges. They can be used for both road and railway bridges and due to their low structural height, nowadays, they are also a welcome alternative for bridge reconstructions – the concrete part serves as the bridge deck as well as the main structure. Unfortunately, In the Slovak Republic, no such bridges have been built as of yet (2020). At Technical University of Kosice, Department of Steel and Timber Structures, an extensive research regarding the steel shear connectors have been launched. Its goals are to bring new, easier for construction (due to prefabrication process), more resistant with even lower structural height, and more economical (due to lesser usage of materials and quick construction) geometrical solutions for composite steel concrete bridges as well as to open and popularize this solution for developers in the Slovak Republic. In this article, one of the new types is presented. It has a cross-section in a shape of a trapezoid, with holes in all its sides, except the bottom flange. Their purpose is to create concrete studs and secure full shear transmission with higher shear resistance, but they also serve to create space for transverse reinforcing bars. Its geometrical and material characteristics are closely specified. Results and process of push-out tests performed in Laboratory of Excellent Research onto three specimens are described and compared to results of finite element analysis simulation performed in Abaqus software.

scholarly journals Push-out tests of shear dowels

2021 ◽  
Vol 1209 (1) ◽  
pp. 012064
Author(s):  
P Vanova ◽  
D Dubecky ◽  
V Kvocak
Keyword(s):  
Civil Engineering ◽  
Concrete Bridges ◽  
Shear Connectors ◽  
Continuous Shear ◽  
Technical University ◽  
Push Out ◽  
Composite Steel

Abstract Continuous shear connectors in a shape of dowels are one of the newer shapes of composite steel-concrete bridges. In this article results of push-out tests of such a dowel with geometry designed at Faculty of Civil Engineering, Technical University of Kosice are presented and compared to the previous research.

FE analysis of continuous shear connector

2021 ◽  
Author(s):  
Patrícia Vaňová ◽  
Vincent Kvočák
Keyword(s):  
Element Model ◽  
Steel Beams ◽  
Shear Connector ◽  
Complex Solution ◽  
Shear Connectors ◽  
Excellent Research ◽  
Continuous Shear ◽  
Composite Bridges ◽  
Push Out ◽  
Material Tests

<p>Composite bridges with encased steel beams, or nowadays, rather encased steel continuous shear connectors are a welcome option for short span railway or road bridges. With lower construction height and easy construction of prefabricated composite beams it brings a new, complex, solution for replacement of older, overserved bridges, as well as for new tasks. At Technical University of Košice, Faculty of Civil Engineering a new designed of the steel perforated strip was developed. At Laboratory of Excellent Research several experiments for resistance finding were carried together with material tests. In this article the numerical analysis of push-out tests performed is closely described and the shear resistance of finite element model developed in Abaqus/CAE is compared to experimental results.</p>

Study on Flexural Behavior of the Steel-Full Depth Precast Concrete Panel Beams

2010 ◽  
Vol 163-167 ◽  
pp. 1980-1986
Author(s):  
Yi Min Dai ◽  
Can Li ◽  
Jian Xiang Ouyang
Keyword(s):  
Cross Section ◽  
Precast Concrete ◽  
Concrete Strength ◽  
Flexural Behavior ◽  
Work Behaviors ◽  
Entire Cross Section ◽  
Shear Connectors ◽  
Shear Connection ◽  
Push Out ◽  
Composite Steel

Based on twelve push-out specimens with different holes filling different materials,the paper compared and analyzed the capacity and the corresponding slip value of the stud shear connector.Meanwhile, tests were also conducted on three composite steel-FDPCP(Full-Depth Precast Concrete Panel) beams with different holes shape and degree of shear connection to investigate the characteistics of load-displacement,load-deflection,load-strain of the total cross section and monolithic action of the entire cross section in the paper. The results show that, as to the two different kinds of holes shape ,the strength of the stud shear connectors of square push-out specimens was huger than that of circular specimens with the same condition; the strength of stud shear connectors in steel-concrete composite structure was decided by the strength of concrete surrounding the shear in the holes, with increasing concrete strength, the strength of stud shear connectors improved greatly; the composite steel-FDPCP beams failed in bending,plane section was maintained in composite beams throughout the testing process.the composite steel-FDPCP beams have some merits :good bearing capacity, good anti-bend capability, fast pile-driving pace and perfect work behaviors as a whole;the ultimate flexural capacity of the composite steel-FDPCP beams with a full shear connection is close to that of a partial shear connection. The outputs of this study are very useful for further understanding of the characteristics of the composite steel-FDPCP beams,it is also expected that the results presented in this paper should be valuable for the design of the composite steel-FDPCP beams.

Finite Element Analysis Simulation of the South-to-North Water Diversion Bridge during Cantilever Construction

2012 ◽  
Vol 204-208 ◽  
pp. 2114-2118
Author(s):  
Hua Ma
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Water Diversion ◽  
Bottom Flange ◽  
The South ◽  
Element Analysis ◽  
Finite Element Analysis Simulation ◽  
North Water ◽  
Cantilever Construction ◽  
Main Girder

Use the Finite Element Analysis software to numerically simulate the South-to-North Water Diversion Bridge, a prestressed concrete composite box-girder bridge with corrugated steel webs, during the process of cantilever construction. Then research the force condition of the main girder structure during the construction processes. Results indicated that, during each construction process, the bending moment was reasonable, and all sections of the main girder structure were under pressure. The maximum normal stress always appeared around those cross-sections over the main piers, and during the mid-span closure process, the maximum stress appeared around the mid-span segment’s bottom flange.

Push-out tests of shear connectors in U-shaped steel–concrete composite girder

Structures ◽  
2021 ◽  
Vol 31 ◽  
pp. 769-780
Author(s):  
Yong Liu ◽  
Lanhui Guo ◽  
Jun Shi ◽  
Jingfeng Wang
Keyword(s):  
Shear Connectors ◽  
Composite Girder ◽  
Push Out

Finite element analysis and bond strength of a glass post to intraradicular dentin: Comparison between microtensile and push-out tests

2008 ◽  
Vol 24 (10) ◽  
pp. 1405-1411 ◽  
Author(s):  
Carlos J. Soares ◽  
Fernanda R. Santana ◽  
Carolina G. Castro ◽  
Paulo C.F. Santos-Filho ◽  
Paulo V. Soares ◽  
...  
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Bond Strength ◽  
Element Analysis ◽  
Push Out

Push-out tests on bolted shear connectors in composite cold-formed steel beams

2021 ◽  
Vol 164 ◽  
pp. 107831
Author(s):  
Mahmoud Hosseinpour ◽  
Mehran Zeynalian ◽  
Abdoreza Ataei ◽  
Maryam Daei
Keyword(s):  
Steel Beams ◽  
Shear Connectors ◽  
Cold Formed Steel ◽  
Push Out

scholarly journals Design and Analysis of Dual Mover Multi-Tooth Permanent Magnet Flux Switching Machine for Ropeless Elevator Applications

Actuators ◽  
2021 ◽  
Vol 10 (4) ◽  
pp. 81
Author(s):  
Atif Zahid ◽  
Faisal Khan ◽  
Naseer Ahmad ◽  
Irfan Sami ◽  
Wasiq Ullah ◽  
...  
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Permanent Magnet ◽  
Iron Core ◽  
Analytical Prediction ◽  
Element Analysis ◽  
Design Structure ◽  
Finite Element Analysis Simulation ◽  
Analysis Package ◽  
Flux Switching Motor

A dual mover yokeless multi-tooth (DMYMT) permanent magnet flux switching motor (PM-FSM) design is presented in this article for ropeless elevator applications. The excitation sources, including a field winding and permanent magnet, are on the short mover in the proposed design structure, whereas the stator is a simple slotted iron core, thus reducing the vertical transportation system cost. The operational principle of the proposed DMYMT in PM-FSM is introduced. The proposed dual mover yokeless multi-tooth Permanent Magnet Flux Switching Motor is analyzed and compared for various performance parameters in a Finite Element Analysis package. The proposed machine has high thrust force and cost-effectiveness compared to conventional dual permanent magnet motor. Finally, this paper also develops an analytical model for the proposed structure, validated by comparing it with Finite Element Analysis simulation results. Results show good agreement between analytical prediction and Finite Element Analysis results.

scholarly journals Development of Shear Resistance Formula for the Y-Type Perfobond Rib Shear Connector Considering Probabilistic Characteristics

2021 ◽  
Vol 11 (9) ◽  
pp. 3877
Author(s):  
Sang-Hyo Kim ◽  
Tuvshintur Batbold ◽  
Syed Haider Ali Shah ◽  
Suro Yoon ◽  
Oneil Han
Keyword(s):  
Yield Strength ◽  
Shear Resistance ◽  
Basic Design ◽  
Estimation Errors ◽  
Safety Level ◽  
Design Formula ◽  
Shear Connectors ◽  
Design Variables ◽  
Push Out ◽  
Reduction Factors

A design shear resistance formula for Y-type perfobond rib shear connectors is proposed with the various reduction factors, which can be selected depending on the target safety level. The nominal shear resistance formula is improved based on the systematic sensitivity analysis as well as the regression fit test based on 84 push-out test results, including 15 additional push-out tests to extend the application ranges and reduce the estimation errors, compared to the formula proposed in previous studies. Some design variables are additionally included in the proposed design formula: the yield strengths of rebar and rib plate. The basic design variables in the proposed design formula are (1) number of ribs and transverse rebars, (2) concrete compressive strength, (3) rebar diameter and yield strength, and (4) rib thickness, width, height, and yield strength. The application ranges of the basic design variables are recommended for the proposed design formula. The various shear resistance reduction factors are proposed based on the probabilistic ultimate shear resistance model of Y-type perfobond rib shear connectors. The proposed procedure may be recommended to develop the design formula for shear connectors with various shapes.

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