Simplified shear force-chord rotation relationship for concrete-filled steel plate composite coupling beams

Structures ◽  
2022 ◽  
Vol 35 ◽  
pp. 1-14
Author(s):  
Ali Mansouri ◽  
Hasan Najafi
Keyword(s):  
Shear Force ◽  
Steel Plate ◽  
Coupling Beams ◽  
Chord Rotation

scholarly journals Shear Capacity of Open Sandwich Steel Plate-Concrete Composite Slab: Experimental and Analytical Studies

2019 ◽  
Vol 2019 ◽  
pp. 1-14
Author(s):  
Lili Wu ◽  
Lipei An ◽  
Jiawei Li
Keyword(s):  
Failure Mode ◽  
Shear Force ◽  
Steel Plate ◽  
Concrete Slab ◽  
Experimental Studies ◽  
Shear Capacity ◽  
Crack Model ◽  
Composite Slab ◽  
Finite Element Software ◽  
Shear Performance

Considering that the fixed crack model by default of the general finite element software was unable to simulate the shear softening behavior of concrete in the actual situation, a rotational crack model based on the modified compression field theory developed by UMAT (user material) of ABAQUS software was proposed and applied to the nonlinear analysis, and a numerical simulated model for the steel-concrete composite slab was built for shear analysis. Experimental studies and numerical analyses were used to investigate the shear load-carrying capacity, deformation, and crack development in steel plate-concrete composite slab, as well as the effects of the shear span ratio and shear stud spacing on the shear performance and the contribution of the steel plate and the concrete to the shear performance. Shear capacity tests were conducted on three open sandwich steel plate-concrete composite slabs and one plain concrete slab without a steel plate. The results indicated that the shear-compression failure mode occurred primarily in the steel plate-concrete composite slab and that the steel plate sustained more than 50% of the total shear force. Because of the combination effect of steel plate, the actual shear force sustained by the concrete in the composite slab was 1.27 to 2.22 times greater than that of the calculated value through the Chinese Design Code for Concrete Structures (GB 50010-2010). Furthermore, the shear capacity of the specimen increases by 37% as the shear stud spacing decreases from 250 mm to 150 mm. By comparing the shear capacity, the overall process of load deformation development, and the failure mode, it was shown that the simulation results corresponded with the experimental results. Furthermore, the numerical simulation model was applied to analyze the influence of some factors on composite slab, and a formula of shear bearing capacity of slab was obtained. The results of the formula agreed with the test result, which could provide references to the design and application of steel plate-concrete composite slab.

Research on Asymmetric and Negative Offset Mechanism of Large-Scale Steel Plate Rolling Shear

2008 ◽  
Vol 375-376 ◽  
pp. 700-704
Author(s):  
Yu Gui Li ◽  
Li Feng Ma ◽  
Qing Xue Huang ◽  
Si Qin Pang
Keyword(s):  
Shear Force ◽  
Large Scale ◽  
Steel Plate ◽  
Effective Means ◽  
Structural Features ◽  
Motion Path ◽  
Back Wall ◽  
Rolling Shear ◽  
Pure Rolling ◽  
Blade Clearance

According to revised Cailikefu’s rolling shear force formula, motion path equation of spatial seven-bar path is built, and mechanical model, with such new structural features as asymmetric and negative offset, is thus successfully established for 2800 mm heavy shear of some Iron&Steel Company. Shear force and bar force of steel plate, before and after adoption of asymmetric and negative offset structure, are analyzed, as well as horizontal force component of mechanism that influences pure rolling shear and back-wall push force that keeps blade clearance. The discovery is that back-wall push force could be kept large enough at rolling start-up (i.e. the time that the maximum rolling shear produces), meanwhile, back-wall push force is the most approximate to side forces with adoption of 60mm~100mm offset. Theoretical results and on-site shear quality both indicate that new structural features such as asymmetric and negative offset plays an important role in ensuring pure rolling shear and keeping blade clearance constant, which provide an effective means to improve quality of steel plate.

The Research of the Relative Rigid Effect in the Numerical Simulation of the Steel Plate Reinforced Concrete Coupling Beams

2014 ◽  
Vol 638-640 ◽  
pp. 283-286
Author(s):  
Li Song ◽  
Dong Chen ◽  
Bao Lei Li
Keyword(s):  
Numerical Simulation ◽  
Reinforced Concrete ◽  
Steel Plate ◽  
Simulation Analysis ◽  
Great Influence ◽  
Shear Walls ◽  
Internal Force ◽  
Coupling Beams ◽  
Loading Mode ◽  
Deformation Properties

The coupling beam work as an important component in coupled shear walls, the strength,stiffness and deformation properties of which have great influence on the seismic performance of shear walls, the steel plate reinforced concrete coupling beams have the advantages as follows: simplify the constructional details, make the construction convenient and reliable performance [1][2]. The numerical simulation model in this paper is a coupled shear wall connected by steel plate reinforced concrete coupling beams in reference [3], and the loading mode is the same as the reference [4] . The relative stiffness effect was explored by study the internal force and displacement of the model with changing the stiffness of the coupling beams and the shear walls while the span-depth ratio is stable .The study will provide a reference for the numerical simulation of the finite element simulation analysis of the coupling beams and the steel reinforced concrete structures.

The Mechanical Properties Numerical Analysis of Steel Plate of Coupling Beam

2014 ◽  
Vol 1065-1069 ◽  
pp. 1139-1142
Author(s):  
Bao Lei Li ◽  
Dong Chen ◽  
Cheng Fan ◽  
Li Song
Keyword(s):  
Steel Plate ◽  
Shear Capacity ◽  
Steel Plates ◽  
Coupling Beam ◽  
Coupling Beams ◽  
Steel Reinforced Concrete ◽  
Finite Element Software ◽  
Model Size ◽  
The Impact ◽  
Performance Research

In this paper, on the basis of specimen model size mentioned in steel reinforced concrete coupling beam stress performance research, using the ANSYS finite element software about coupling beam specimens with different steel plates for one-off monotonic loading. Through the comparative analysis of simulation results, to explore the impact of different steel plate forms on shear capacity and ductility of coupling beams, etc .

Internal force and deformation of concrete-filled steel plate composite coupling beams

2014 ◽  
Vol 92 ◽  
pp. 150-163 ◽  
Author(s):  
Hong-Song Hu ◽  
Jianguo Nie ◽  
Matthew R. Eatherton
Keyword(s):  
Steel Plate ◽  
Internal Force ◽  
Coupling Beams

Shear capacity of concrete-filled steel plate composite coupling beams

2016 ◽  
Vol 118 ◽  
pp. 76-90 ◽  
Author(s):  
Hong-Song Hu ◽  
Jian-Guo Nie ◽  
Yu-Hang Wang
Keyword(s):  
Steel Plate ◽  
Shear Capacity ◽  
Coupling Beams

scholarly journals Damage Deformation of Flexure-Yielding Steel-Reinforced Concrete Coupling Beams: Experimental and Numerical Investigation

2019 ◽  
Vol 2019 ◽  
pp. 1-15 ◽  
Author(s):  
Yinghui Li ◽  
Huanjun Jiang ◽  
T. Y. Yang
Keyword(s):  
Three Dimensional ◽  
Great Influence ◽  
Boundary Region ◽  
Test Results ◽  
Coupling Beams ◽  
Damage Behavior ◽  
Aspect Ratios ◽  
Beam Depth ◽  
Chord Rotation ◽  
Global And Local

SRC coupling beams offer many significant advantages, including the reduction in section depth, reduced congestion at the wall boundary region, improved degree of coupling for a given beam depth, and improved deformation capacity. In this paper, 7 half-scale flexure-yielding SRC coupling beams designed according to Chinese approach have been tested under cyclic loads. Detailed parameters such as aspect ratios, steel reinforcement ratios, and steel flange-web ratios were systematically studied, and the damage behavior of SRC coupling beams were presented in this paper. The test results show that the aspect ratio, steel ratio, and steel flange-web ratio have great influence on the damage behavior of SRC coupling beams. Three-dimensional nonlinear finite element models were constructed and benchmarked through comparison with test results for both global and local damage deformation behavior. Based on the material damage and strength degradation, four performance levels were defined and corresponding chord rotation limits were obtained through the verified numerical analysis.

scholarly journals Behaviour of Plate Anchorage in Plate-Reinforced Composite Coupling Beams

2013 ◽  
Vol 2013 ◽  
pp. 1-12 ◽  
Author(s):  
W. Y. Lam ◽  
Lingzhi Li ◽  
R. K. L. Su ◽  
H. J. Pam
Keyword(s):  
Steel Plate ◽  
Maximum Shear Stress ◽  
Element Model ◽  
Coupling Beam ◽  
Coupling Beams ◽  
Anchorage Length ◽  
Steel Ratio ◽  
Reinforced Composite ◽  
Depth Ratio ◽  
Nonlinear Finite Element Model

As a new alternative design, plate-reinforced composite (PRC) coupling beam achieves enhanced strength and ductility by embedding a vertical steel plate into a conventionally reinforced concrete (RC) coupling beam. Based on a nonlinear finite element model developed in the authors’ previous study, a parametric study presented in this paper has been carried out to investigate the influence of several key parameters on the overall performance of PRC coupling beams. The effects of steel plate geometry, span-to-depth ratio of beams, and steel reinforcement ratios at beam spans and in wall regions are quantified. It is found that the anchorage length of the steel plate is primarily controlled by the span-to-depth ratio of the beam. Based on the numerical results, a design curve is proposed for determining the anchorage length of the steel plate. The load-carrying capacity of short PRC coupling beams with high steel ratio is found to be controlled by the steel ratio of wall piers. The maximum shear stress of PRC coupling beams should be limited to 15 MPa.

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