scholarly journals Load-displacement relationship of plate shape shear connector in steel-concrete composite structures.

1991 ◽  
pp. 223-229 ◽  
Author(s):  
Chin Long CHUAH ◽  
Hiroshi SHIMA ◽  
Rungrojsaratis VIRACH
Keyword(s):  
Composite Structures ◽  
Shear Connector ◽  
Plate Shape ◽  
Load Displacement ◽  
Relationship Of

scholarly journals Analytical Model for Load–Slip Relationship of Perfobond Shear Connector Based on Push-Out Test

Materials ◽  
2018 ◽  
Vol 12 (1) ◽  
pp. 29 ◽  
Author(s):  
Shuangjie Zheng ◽  
Chen Zhao ◽  
Yangqing Liu
Keyword(s):  
Analytical Model ◽  
Composite Structures ◽  
Concrete Slab ◽  
Concrete Strength ◽  
Shear Connector ◽  
Design Variables ◽  
Wide Range ◽  
Alternative Type ◽  
Relationship Of ◽  
Push Out

In composite structures, the perfobond connector is an alternative type of shear connector which consists of a steel plate with a certain number of holes. The load–slip relationship is critical for structural analysis and numerical simulation of composite structures using perfobond connectors. In this study, push-out tests were conducted on 72 specimens to obtain the load–slip behaviors of perfobond connectors. Based on the test results, parametric study was performed to analyze the effects of changing the hole geometry, the concrete strength, the configuration of the rebar in hole, the dimensions of the perfobond rib, and the size of the concrete slab. Furthermore, the characteristics and physical meanings of the load–slip curves were analyzed, and the limits and conditions for theoretical expressions were derived. Finally, an analytical model was proposed to express the load–slip relationship of perfobond connectors covering a wide range of design variables.

scholarly journals Behavior of an Advanced Bolted Shear Connector in Prefabricated Steel-Concrete Composite Beams

Materials ◽  
2019 ◽  
Vol 12 (18) ◽  
pp. 2958 ◽  
Author(s):  
Jun Chen ◽  
Wei Wang ◽  
Fa-Xing Ding ◽  
Ping Xiang ◽  
Yu-Jie Yu ◽  
...  
Keyword(s):  
Composite Structures ◽  
Concrete Slab ◽  
Concrete Strength ◽  
High Strength ◽  
Fe Model ◽  
Building Structures ◽  
Shear Connector ◽  
Test Results ◽  
Shear Connectors ◽  
Bolt Pretension

The high-strength bolt shear connector in prefabricated concrete slab has advantages in applications as it reduces time during the construction of steel-concrete composite building structures and bridges. In this research, an innovative and advanced bolt shear connector in steel-concrete composite structures is proposed. To investigate the fundamental mechanical behavior and the damage form, 22 static push-off tests were conducted with consideration of different bolt dimensions, the reserved hole constraint condition, and the dimension of slab holes. A finite element (FE) model was established and verified by using test results, and then the model was utilized to investigate the influence of concrete strength, bolt dimension, yield strength, bolt pretension, as well as length-to-diameter ratio of high strength bolts on the performances of shear connectors. On the basis of FE simulation and test results, new design formulas for the calculation of shear resistance behavior were proposed, and comparisons were made with current standards, including AISC, EN 1994-1-1, GB 50017-2017, and relevant references, to check the calculation efficiency. It is confirmed that the proposed equation is in better agreement with the experimental results.

Experimental Research on PBL Shear Connector for Steel-Concrete Composite Structures

2010 ◽  
Vol 163-167 ◽  
pp. 2137-2141
Author(s):  
Lin Xiao ◽  
Shi Zhong Qiang ◽  
Xun Xu
Keyword(s):  
Finite Element ◽  
Model Test ◽  
Composite Structures ◽  
Mainland China ◽  
Shear Connector ◽  
Nonlinear Fem ◽  
Element Analysis ◽  
Main Work ◽  
Work Model ◽  
Push Out

PBL shear connector is a recently developed shear connector for steel-concrete composite structure that making the two element work as a unique piece. In this work, model test has been carried out to investigate the mechanical characteristics of 21 specimens in 7 types of PBL connectors. Combining the model test with finite element simulation, the main work has been done as follows：Load transfer behavior, load-slippage rule and static load mechanical property of PBL have been analyzed. Research on main factors that could influence the mechanical characteristic of PBL has also been conducted. Based on comparison of results of model test and finite element analysis, the feasibility of push-out simulation by nonlinear FEM has been analyzed. Compared to typical push-out tests results in mainland China, recommendations of push-out test of PBL are presented.

Experimental Study on PBL Shear Connector Composite Structures

2013 ◽  
Vol 101 (3) ◽  
pp. 1-9 ◽  
Author(s):  
Qiao Li ◽  
Song Xia ◽  
Canhui Zhao ◽  
Yuzhi Zhang
Keyword(s):  
Experimental Study ◽  
Composite Structures ◽  
Shear Connector

scholarly journals Shear Load-Displacement Curves of PVA Fiber-Reinforced Engineered Cementitious Composite Expansion Joints in Steel Bridges

2019 ◽  
Vol 9 (24) ◽  
pp. 5275
Author(s):  
Liqiang Yin ◽  
Shuguang Liu ◽  
Changwang Yan ◽  
Ju Zhang ◽  
Xiaoxiao Wang
Keyword(s):  
Composite Structure ◽  
Composite Structures ◽  
Shear Load ◽  
Cementitious Composite ◽  
Fiber Reinforced ◽  
Expansion Joints ◽  
Failure Characteristics ◽  
Engineered Cementitious Composite ◽  
Load Displacement ◽  
Pva Fiber

The concrete in the transition strips of expansion joints can become damaged prematurely during the service period. Polyvinyl alcohol (PVA) fiber-reinforced engineered cementitious composite (ECC) is a kind of high ductility concrete material, and its ultimate uniaxial tensile strain is more than 3%. It can be used to improve the damage status of expansion joints. Based on previous research results, ECCs were used in the pilot project of bridge expansion joints. Under this engineering background, the shear load-displacement curves of ECC expansion joints were studied through 27 groups of compression-shear tests of ECC/steel composite structures. The shear failure characteristics of ECC expansion joints were analyzed by the digital image correlation method. A shear load-displacement curve model of the composite structures was proposed based on the equivalent strain assumption and Weibull distribution theory. The results show that the failure mode of the composite structure specimens was ECC shear cracking. Stress and strain field nephograms were used to explain the failure characteristics of the composite structure specimens. The calculated curves of the shear load-displacement model of the composite structures were in good agreement with the experimental curves. The work is of great importance to the shear design of ECC expansion joints and their further engineering applications.

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