Review on Shear Connectors in Timber-Concrete Composite Beams

2015 ◽  
Vol 744-746 ◽  
pp. 274-278
Author(s):  
Li Ping Chen ◽  
Guo Jing He ◽  
Hong Zhi Xiao
Keyword(s):  
Composite Beam ◽  
State Of The Art ◽  
Composite Beams ◽  
Structural Member ◽  
Shear Connector ◽  
Timber Beam ◽  
Shear Connectors ◽  
The Past ◽  
Different Types ◽  
New Type

The timber-concrete composite (TCC) beam is a new type of structural member, which formed by combing a timber beam and an upper concrete flange using different types of connectors. Compared with the traditional timber beam, the bending and stiffness of the composite beam is proved. In composite structure, the important factor of the structure is the shear connector. So structural efficiency of a TCC highly depends on the stiffness of the interlayer connection. This paper presents a survey on the state-of-the-art of shear connectors for TCC beam research in the past and recent years. And put forward to the subsequent study of shear connectors in TCC beams.

scholarly journals Estimation of friction contribution in the behavior of steel-concrete composite beams with flexible shear connectors

2014 ◽  
Vol 67 (3) ◽  
pp. 253-258 ◽  
Author(s):  
Gilson Queiroz ◽  
Hermes Carvalho ◽  
Francisco Rodrigues ◽  
Michèle Pfeilo
Keyword(s):  
Composite Beam ◽  
Numerical Models ◽  
Experimental Tests ◽  
Composite Beams ◽  
Shear Connector ◽  
Limit States ◽  
Shear Connectors ◽  
Composite Slabs ◽  
Strength And Stiffness ◽  
Ultimate Limit

A shear connector, developed to be applied to a composite beam whose steel profile is a thin-walled box profile, displayed much greater flexibility than the conventional welded shear connector, leading to particular issues in the composite beam behaviour. One of these issues is the role played by friction at the interface between the steel profile and the slab which, under particular circumstances, may be relevant for serviceability limit states and also for ultimate limit states. The Brazilian and American Standards do not yet recognize the friction contribution in the behaviour of composite beams, though they recognize this contribution in composite slabs. This paper presents the experimental tests carried out with and without friction contribution on simple supported composite beams with flexible connectors and the numerical models developed to simulate the behaviour of the tested beams. The experimental tests revealed significant increases in strength and stiffness of the composite beam due to friction contribution and the comparisons between numerical and experimental results displayed good correlations.

scholarly journals Study on Behaviour of Stud Type Shear Connector in Composite Beam Using ANSYS

2018 ◽  
Vol 7 (3.10) ◽  
pp. 54
Author(s):  
T Subramani ◽  
A Periasamy
Keyword(s):  
Composite Beam ◽  
Composite Structures ◽  
Numerical Models ◽  
Concrete Slab ◽  
Composite Beams ◽  
Vital Role ◽  
Shear Connector ◽  
Structural Behaviour ◽  
Shear Connectors ◽  
High Rise

Composite plays a vital role in replacing the existing mild steel in reinforcement and exterior truss structure. This study proposed to design shear connector for joining concrete slab and steel section. Shear connectors has analyzed and predict the best connector for a particular composite beam with respect to static load and the amount of steel in the connector as a common aspect. The use of composite structures is increasingly present in civil construction works nowadays. Composite beams, especially, are structures which include substances, a metal phase placed in particular inside the tension region and a concrete phase, positioned in the compression go sectional location, both are related with the aid of steel gadgets called shear connectors. The main features of this connector are to permit the weight for the joint the beam-column, to restriction longitudinal slipping and uplifting on the factors interface the shear forces. Our project paper presents 3D numerical models of steel-concrete composite beams to simulate their structural behaviour, with emphasis on the beam column interface using Simulations software ANSYS 18.1 based on the Finite Element Method. Mostly these type of structures are widely used in the dynamic loading structures like bridges and high rise buildings.  

scholarly journals Effect of Shear Connector Layout on the Behavior of Steel-Concrete Composite Beams with Interface Slip

2019 ◽  
Vol 9 (1) ◽  
pp. 207 ◽  
Author(s):  
Xinggui Zeng ◽  
Shao-Fei Jiang ◽  
Donghua Zhou
Keyword(s):  
Composite Beam ◽  
Concrete Slab ◽  
Composite Beams ◽  
Triangular Distribution ◽  
Shear Connector ◽  
Optimal Method ◽  
Shear Connectors ◽  
Appreciable Increase ◽  
Partial Interaction ◽  
Distribution Type

In a steel-concrete composite beam (hereafter referred to as a composite beam), partial interaction between the concrete slab and the steel beam results in an appreciable increase in the beam deflections relative to full interaction behavior. Moreover, the distribution type of the shear connectors has a great impact on the degree of the composite action between the two components of the beam. To reveal the effect of shear connector layout in the performance of composite beams, on the basis of a developed one-dimensional composite beam element validated by the closed-form precision solutions and experimental results, this paper optimizes the layout of shear connectors in composite beams with partial interaction by adopting a stepwise uniform distribution of shear connectors to approximate the triangular distribution of the shear connector density without increasing the total number of shear connectors. Based on a comparison of all the different types of stepped rectangles distribution, this paper finally suggests the 3-stepped rectangles distribution of shear connectors as a reasonable and applicable optimal method.

Evaluation of Load Carrying Capacity of the Perforated Shear Connector with Flange Heads

2006 ◽  
Vol 326-328 ◽  
pp. 1811-1816 ◽  
Author(s):  
Young Ho Kim ◽  
Jae Ho Jung ◽  
Soon Jong Yoon ◽  
Won Sup Jang
Keyword(s):  
Carrying Capacity ◽  
Load Transfer ◽  
Shear Capacity ◽  
Load Carrying Capacity ◽  
Shear Connector ◽  
Shear Connectors ◽  
Load Carrying ◽  
Bridge Structures ◽  
Composite Bridge ◽  
New Type

In the construction of composite bridge structures, various types of shear connectors are usually used to provide an efficient load transfer and the composite action of two or more different materials. In the previous work conducted by authors, a new type of the shear connector was introduced, which is the perforated shear connector with flange heads (T-shaped perforated shear connector), and the structural behavior of the shear connector was discussed based on the results of push-out tests. For the practical design of new shear connector, it is necessary to develop the equation for the prediction of the load carrying capacity of the shear connector. In this study, the existing design equations for the Perfobond shear connector were briefly analyzed and the equation for the prediction of the shear capacity of T-shaped perforated shear connector was suggested empirically. By comparing the results obtained by the suggested equation, the existing equations for the Perfobond shear connector, and the experiment, the applicability and effectiveness of the suggested equation was estimated.

A Comparative Study of Ultimate Strength and Behaviour of Steel Concrete Composite Beam with Shear Connectors Subjected to Pure Torsion

2016 ◽  
Vol 13 (10) ◽  
pp. 6892-6895
Author(s):  
J Thivya ◽  
R Malathy ◽  
D Tensing
Keyword(s):  
Comparative Analysis ◽  
Comparative Study ◽  
Ultimate Strength ◽  
Composite Beam ◽  
Torsion Test ◽  
Shear Connector ◽  
Pure Torsion ◽  
Shear Connectors ◽  
Physical Response ◽  
Strength And Stiffness

This study concerns the employment of pure torsion analysis to determine ultimate strength of composite beam with shear connectors. The effect of shear connector is used for increasing the strength and stiffness of composite beam. This behavior is influenced by physical response of the beam under pure torsion. Totally 12 beams are tested and comparative analysis has been made within this 12 beams. The curvature, rotation and angle of twist are calculated throughout entire load by torsion test. This investigation proves that the composite beam with 75 mm spaced shear connector provides good ultimate strength.

Nonlinear Analysis of Steel and Concrete Composite Beams Strengthened with Prestressed FRP Bars

2012 ◽  
Vol 256-259 ◽  
pp. 775-778
Author(s):  
Jia Yang
Keyword(s):  
Nonlinear Analysis ◽  
Composite Beam ◽  
Composite Beams ◽  
Deformation Curve ◽  
Shear Connectors ◽  
Plastic Stage ◽  
The Moment ◽  
Analysis Mode ◽  
Frp Bars ◽  
Elastic Stage

Steel and concrete composite beam is a kind of composite beam which the steel and the concrete are connected by shear connectors. Now, many experts and scholars have carried out many experimental research and theoretical analysis about it. But, steel and concrete composite beams strengthened with prestressed FRP bars have not been studied. Based on the structure, the nonlinear analysis mode of steel and concrete composite beams strengthened with prestressed FRP bars is proposed, the calculating program is researched. The relationships between moment and curvature, also between load and deformation of steel and concrete composite beams strengthened with prestressed FRP bars are obtained. The results show that the moment-curvature curve and load-deformation curve of steel and concrete composite beams strengthened with prestressed FRP bars can be separated to elastic stage, elastic-plastic stage and plastic stage.

Mechanical Properties Research of Steel-Concrete Composite Structure's Connector

2013 ◽  
Vol 738 ◽  
pp. 128-132
Author(s):  
Xiu Yong Si ◽  
Jian Bo Zhao ◽  
Xiang Zhong Bai
Keyword(s):  
Bearing Capacity ◽  
Shear Failure ◽  
Rapid Development ◽  
Influence Factors ◽  
Shear Stiffness ◽  
Transmission Mechanism ◽  
Shear Connector ◽  
Force Transmission ◽  
Shear Connectors ◽  
New Type

A new type of PBL shear connector gets more attention with the rapid development of steel-concrete composite structure. The PBL shear connector's static behavior and influence factors thereof are analysed through experiments. The PBL shear connector's force-transmission mechanism is discussed. The conclusions show that the thickness of perforate plate has significant impact of PBL shear connectors design bearing capacity, shear stiffness and ultimate bearing capacity. According to the thickness of perforate plate, the failure mode of PBL shear connector may appear to flexural and shear failure of perforate rebar, shear failure of perforate rebar or shear failure of perforate plate.

scholarly journals Experimental analysis of the structural behavior of different types of shear connectors in steel-concrete composite beams

2020 ◽  
Vol 13 (6) ◽  
Author(s):  
Juliano Geraldo Ribeiro Neto ◽  
Gregório Sandro Vieira ◽  
Rogers de Oliveira Zoccoli
Keyword(s):  
Bending Moment ◽  
Experimental Tests ◽  
Composite Beams ◽  
Structural Behavior ◽  
Steel Beams ◽  
Shear Connectors ◽  
Reinforced Concrete Slabs ◽  
Different Types ◽  
Composite Section ◽  
Hot Rolled

ABSTRACT: The present work aims to compare the structural behavior of steel-concrete composite-section beams for three types of shear connectors made of U hot rolled section and cold-formed sections of U and L. Experimental tests were performed with the three types of connectors associated with I section laminated steel beams and reinforced concrete slabs. For each type of connector, three push-out tests were performed, as well as six simple supported beam tests to evaluate the positive bending moment region. The results indicated that the direct shear behavior among the different types of connectors presents significant differences, however they do not significantly influence the average flexural strength of the composite beams. These, however, present considerable differences in deflections and deformations due to the stiffness differences of the connectors.

scholarly journals An Analysis of the Load-Bearing Capacity of Timber-Concrete Composite Beams with Profiled Sheeting

2017 ◽  
Vol 27 (4) ◽  
pp. 143-156 ◽  
Author(s):  
Maciej Szumigała ◽  
Ewa Szumigała ◽  
Łukasz Polus
Keyword(s):  
Numerical Analysis ◽  
Bearing Capacity ◽  
Concrete Slab ◽  
Composite Beams ◽  
Concrete Slabs ◽  
Timber Beam ◽  
Load Bearing Capacity ◽  
Load Bearing ◽  
Shear Connectors ◽  
Timber Beams

Abstract This paper presents an analysis of timber-concrete composite beams. Said composite beams consist of rectangular timber beams and concrete slabs poured into the steel sheeting. The concrete slab is connected with the timber beam using special shear connectors. The authors of this article are trying to patent these connectors. The article contains results from a numerical analysis. It is demonstrated that the type of steel sheeting used as a lost formwork has an influence on the load-bearing capacity and stiffness of the timber-concrete composite beams.

Hydrating Hyderabad: Rapid urbanisation, water scarcity and the difficulties and possibilities of human flourishing

Urban Studies ◽  
2019 ◽  
Vol 57 (7) ◽  
pp. 1553-1569 ◽  
Author(s):  
Diganta Das ◽  
Tracey Skelton
Keyword(s):  
Water Scarcity ◽  
State Of The Art ◽  
High Tech ◽  
Human Flourishing ◽  
Rural Villages ◽  
The Past ◽  
Urban Transition ◽  
Different Types ◽  
Telangana State ◽  
The City

The city of Hyderabad plays a significant role in urban transition processes at play in India. Cyberabad, a section of the city of Hyderabad, developed through the rapid urbanisation of rural villages and land, becoming a high-tech, state of the art, globally connected enclave. On weekday mornings in the neighbourhood of Madhapur, smartly dressed HITEC City workers, with ID tags, emerge from hostel accommodation and walk alongside large, black buffalo being herded into rundown dairies. This paradoxical use of space is replicated in the urban fabric of Cyberabad and surrounding Madhapur. Cheek-by-jowl urbanisation has created two very different types of urban locale: Cyberabad – air-conditioned, gardened, watered – a space of hydration and flourishing; and Madhapur – hot, dusty and desiccated – a space of dryness and water struggles. This paper explores whether aspects of urban flourishing and resilience are possible in the newly formed Telangana state and its capital, Hyderabad, through an examination of the past, present and future of the city’s water.

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