Dynamic Assessment of Composite Structures with Different Types of Shear Connection Systems

2012 ◽  
Author(s):  
I. Henderson ◽  
X. Q. Zhu ◽  
B. Uy ◽  
O. Mirza
Keyword(s):  
Composite Structures ◽  
Dynamic Assessment ◽  
Shear Connection ◽  
Different Types

FIRE RESISTACE OF SHEAR CONNECTORS FOR COMPOSITE BEAMS

2020 ◽  
Vol 92 (6) ◽  
pp. 59-65
Author(s):  
G.P. TONKIH ◽  
◽  
D.A. CHESNOKOV ◽  
◽  
Keyword(s):  
Fire Resistance ◽  
Composite Structure ◽  
Composite Structures ◽  
Composite Beams ◽  
Design Codes ◽  
Connection Strength ◽  
Shear Connectors ◽  
Shear Connection ◽  
Capacity Reduction ◽  
Russian Research

Most of Russian research about composite structure fire resistance are dedicated to the composite slab behavior. The composite beams fire resistance had been never investigated in enough volume: the temperature evaluation within the scope of the actual Russian design codes leads to the significant reduction in the shear connection strength. Meanwhile, there no correlation between the strength decreasing and type of the shear connection. The article provides an overview of the relevant researches and offers some approaches which could take into account bearing capacity reduction of the shear connectors within composite structures design.

Full-scale tests on composite structures with low degree of shear connection

ce/papers ◽  
2017 ◽  
Vol 1 (5-6) ◽  
pp. 297-302
Author(s):  
Therese Sheehan ◽  
Xianghe Dai ◽  
Dennis Lam
Keyword(s):  
Composite Structures ◽  
Full Scale ◽  
Shear Connection ◽  
Low Degree ◽  
Full Scale Tests

Dynamic Assessment of Shear Connection Conditions in Slab-Girder Bridges by Kullback-Leibler Distance

2012 ◽  
Vol 15 (5) ◽  
pp. 771-780 ◽  
Author(s):  
X.Q. Zhu ◽  
H. Hao ◽  
B. Uy ◽  
Y. Xia ◽  
O. Mirza
Keyword(s):  
Dynamic Assessment ◽  
Shear Connection ◽  
Girder Bridges

scholarly journals A new type of hollow-shallow steel and concrete composite floor beam

2021 ◽  
Vol 15 (4) ◽  
pp. 65-73
Author(s):  
Vu Anh Tuan ◽  
Han Ngoc Duc ◽  
Nguyen Dinh Hoa ◽  
Nguyen Tran Hieu ◽  
Nguyen Trung Kien
Keyword(s):  
Composite Beam ◽  
Composite Structures ◽  
Concrete Slab ◽  
Raw Material ◽  
Secondary Beam ◽  
Shear Connection ◽  
Connected Surface ◽  
New Type ◽  
Development Orientation ◽  
The Cost

Recently in Vietnam, steel-concrete composite structures especially composite beams are widely constructed in high-rise buildings. To apply broader in construction field mainly in secondary beam systems, the new type of slim-floor composite beam is proposed to aim at reducing the cost, saving the raw material, and decreasing the overall floor depth for sustainable development orientation. This type of floor beam structure consists of built-up hollow-shallow steel beam mandatory connected with cast in situ concrete slab through the openings at both side of web along the beam. The shear connection level of composite beam is depended on not only the friction at the connected surface between hollow steel section and concrete but also the shear resistance of concrete dowels, which go through the openings. The paper deals with an innovative shape of cross-section and design philosophy of composite beam according to EN 1994-1-1.

scholarly journals Post-fire Behaviour of Innovative Shear Connection for Steel-Concrete Composite Structures

Structures ◽  
2017 ◽  
Vol 9 ◽  
pp. 147-156 ◽  
Author(s):  
Fidelis R. Mashiri ◽  
Olivia Mirza ◽  
Carlo Canuto ◽  
Dennis Lam
Keyword(s):  
Composite Structures ◽  
Fire Behaviour ◽  
Shear Connection

scholarly journals Numerical and Experimental Analysis of a Shear Connection Made Using a Top-Hat Profile

2017 ◽  
Vol 26 (3) ◽  
pp. 69-78 ◽  
Author(s):  
Paweł Helbrych ◽  
Maciej Major ◽  
Jacek Nawrot
Keyword(s):  
Numerical Model ◽  
Experimental Research ◽  
Composite Structures ◽  
Concrete Slab ◽  
Ansys Software ◽  
Reinforced Concrete Slab ◽  
Material Parameters ◽  
Shear Connection ◽  
Shear Connections ◽  
Steel Shape

Abstract The paper proposed a numerical model of a shear connection between a reinforced concrete slab and a steel shape. The connection was made using a top-hat profile. A method for conducting experimental research on shear connections in the composite structures was presented. Geometric dimensions and material parameters of the analysed model of connection, on which the experimental research was conducted, were noted. The results of the conducted experimental research were compared to the results of the numerical analysis performed using ANSYS software. displecement curves were analysed for both cases and any correlation between experimental and numerical results was noted.

scholarly journals ANALYSIS OF BEHAVIOUR OF COMPOSITE ELEMENTS WITH PROFILED STEEL SHEET/LENKIAMŲJŲ KOMPOZITINIŲ ELEMENTŲ, ARMUOTŲ PROFILIUOTAIS METALO LAKŠTAIS, DARBO ANALIZĖ

2001 ◽  
Vol 7 (6) ◽  
pp. 425-432
Author(s):  
Gediminas Marčiukaitis ◽  
Juozas Valivonis ◽  
Andrius Vaškevičius
Keyword(s):  
Joint Action ◽  
Composite Structures ◽  
Steel Sheet ◽  
Deformation Modulus ◽  
Experimental Investigations ◽  
Interface Zone ◽  
Factors Affecting ◽  
Concrete Layer ◽  
Different Types ◽  
Mechanical Bond

Joint action at the interface of concrete and profiled steel sheet layers of composite structures can be achieved in various ways. In most cases different types of roughness (embossments) are made inside sheet waves, which increase mechanical bond between concrete and sheets. Behaviour of such structures and particularly of the section at the interface of the layers is not fully investigated. The analysis performed has indicated that calculation methods proposed by various authors give different results. Theoretical and performed experimental investigations have shown that behaviour of interface zone is affected by concrete layer thickness, its deformation modulus, distribution of transverse and longitudinal deformations in concrete layers. On the basis of the theory of composite bars, a method for strength calculation of such structures was proposed; it gives opportunity to evaluate more accurately the behaviour of interface zone and other factors affecting the joint action of the structures under the load.

Composite Dowels: the Way to the New Forms Of Steel-Concrete Composite Structures

2020 ◽  
Author(s):  
W. Lorenc
Keyword(s):  
Composite Structures ◽  
Design Principle ◽  
Concrete Slab ◽  
Design Guidelines ◽  
Current Version ◽  
Shear Connection ◽  
Eurocode 2 ◽  
Composite Bridges ◽  
New Type ◽  
Connection Design

<p>The introduction of composite dowels in Europe at the beginning of the last decade led to the creation of new forms of composite bridges in which a T-profile is used instead of an I-beam. Both the construction and design methods are new. The paper presents the bridges using this new type of shear connection. The variety of forms and dynamic development of a new type of construction is presented. The development history and the latest shear connection design guidelines are summarized. Reference was made to the basic design principle for composite beams with the associated concrete slab: the omission of part of the transverse force transmitted by the concrete slab. To understand design basis for new forms is to deeply understand that they are beyond current version of Eurocode 4: "3 + 2 ≠ 4 and Eurocode 3 + Eurocode 2 ≠ Eurocode 4". The above in a good way reflects the sense of what new forms are and why their design is complicated.</p>

scholarly journals Experimental Investigation of a Slip in High-Performance Steel-Concrete Small Box Girder with Different Combinations of Group Studs

Materials ◽  
2019 ◽  
Vol 12 (17) ◽  
pp. 2781 ◽  
Author(s):  
Bishnu Gupt Gautam ◽  
Yiqiang Xiang ◽  
Xiaohui Liao ◽  
Zheng Qiu ◽  
Shuhai Guo
Keyword(s):  
Composite Structures ◽  
High Performance ◽  
Vital Role ◽  
Accelerated Bridge Construction ◽  
Continuous Beam ◽  
Box Girders ◽  
Test Beam ◽  
Simply Supported ◽  
Shear Connectors ◽  
Shear Connection

Due to the significant advantages of steel-concrete composite beams, they are widely used for accelerated bridge construction (ABC). However, there is still a lack of experimental research on the proper design of ABC, especially in the slip with a different group of shear connectors. As a component of steel-concrete composite structure, shear studs play a vital role in the performance of composite structures. This paper investigates the influence of group studs in simply supported and continuous box girders. To this end, three sets of simply supported steel-concrete composite small box girders and two continuous steel-concrete composite small box girders were made with different groups of shear studs, and the slip generated along the beams was recorded under different caseloads. The results were then compared with the proposed simplified equations. The results show that the slip value of the test beam is inversely proportional to the degree of shear connection. The slip of Simply Supported Prefabricated Beam-3 (SPB3) is 1.247 times more than Simply Supported Prefabricated Beam-1 (SPB1), and 2.023 times more than Simply Supported Prifabricated Beam-2 (SPB2). Also, the slip value of Experimental Continuous Beam-1 (ECB1) is 1.952 times more than Experimental Continuous Beam-2 (ECB2). The higher the degree of shear connection, the smaller the maximum slip value.

Stiffness Matrices for Linear and Buckling Analyses of Composite Beams with Partial Shear Connection

2006 ◽  
Vol 22 (4) ◽  
pp. 299-309 ◽  
Author(s):  
L.-J. Leu ◽  
C.-W. Huang
Keyword(s):  
Composite Beams ◽  
Transverse Displacement ◽  
The Finite Element Method ◽  
Shape Functions ◽  
Shear Connection ◽  
Beam Elements ◽  
Geometric Stiffness ◽  
Stiffness Matrices ◽  
Different Types ◽  
Exact Shape

AbstractThis paper is concerned with linear and buckling analyses of composite beams with partial shear connection (partial composite beams) using the finite element method. Two elements derived from different types of shape functions are proposed in this study. The first element, referred to as exact, is based on the exact shape functions obtained by solving the differential equations governing the transverse displacement and the slip of the shear connector layer of a partial composite beam. The second element, referred to as approximate, is based on the conventional linear and cubic shape functions used in conventional axial and beam elements. By making use of these two types of shape functions, the elastic and geometric stiffness matrices can be derived explicitly from the strain energy and the load potential, respectively. Both types of elements can be used to carry out linear static and buckling analyses. As expected, the exact element is more accurate than the approximate element if the same discretization is adopted. However, the approximate element has the advantage of easy implementation since the expressions of its elastic and geometric stiffness matrices are very simple. Also, the solutions obtained from the approximate element converge very fast; with reasonable discretization, say 8 elements per member, very accurate solutions can be obtained.

Sign in / Sign up

Export Citation Format

Share Document