Interfacial bond-slip behaviour between reinforced high-strength concrete and built-in steel plate with studs

2021 ◽  
Vol 226 ◽  
pp. 111317
Author(s):  
Hongying Dong ◽  
Yizhou Zhao ◽  
Wanlin Cao ◽  
Xuepeng Chen ◽  
Jianwei Zhang
Keyword(s):  
High Strength Concrete ◽  
Steel Plate ◽  
High Strength ◽  
Interfacial Bond ◽  
Bond Slip ◽  
Strength Concrete

Bond behavior of high strength concrete under reversed pull-out cyclic loading

2002 ◽  
Vol 29 (2) ◽  
pp. 191-200 ◽  
Author(s):  
M Alavi-Fard ◽  
H Marzouk
Keyword(s):  
Cyclic Loading ◽  
Bond Strength ◽  
High Strength Concrete ◽  
Concrete Strength ◽  
High Strength ◽  
Displacement Curve ◽  
Bond Slip ◽  
Strength Concrete ◽  
Pull Out ◽  
Normal Strength

Structures located in seismic zones require significant ductility. It is necessary to examine the bond slip characteristics of high strength concrete under cyclic loading. The cyclic bond of high strength concrete is investigated under different parameters, including load history, confining reinforcement, bar diameter, concrete strength, and the rate of pull out. The bond strength, cracking, and deformation are highly dependent on the bond slip behavior between the rebar and the concrete under cyclic loading. The results of cyclic testing indicate that an increase in cyclic displacement will lead to more severe bond damage. The slope of the bond stress – displacement curve can describe the influence of the rate of loading on the bond strength in a cyclic test. Specimens with steel confinement sustained a greater number of cycles than the specimens without steel confinement. It has been found that the maximum bond strength increases with an increase in concrete strength. Cyclic loading does not affect the bond strength of high strength concrete as long as the cyclic slip is less than the maximum slip for monotonic loading. The behavior of high strength concrete under a cyclic load is slightly different from that of normal strength concrete.Key words: bond, high strength, cyclic loading, bar spacing, loading rate, failure mechanism.

scholarly journals Steel Plate Cold-Rolled Section Steel Embedded High-Strength Concrete Low-Rise Shear Wall Seismic Performance

2018 ◽  
Vol 2018 ◽  
pp. 1-18
Author(s):  
Min Gan ◽  
Yu Yu ◽  
Liren Li ◽  
Xisheng Lu
Keyword(s):  
Bearing Capacity ◽  
Failure Mode ◽  
Seismic Performance ◽  
High Strength Concrete ◽  
Steel Plate ◽  
Shear Walls ◽  
High Strength ◽  
Shear Wall ◽  
Steel Plates ◽  
Strength Concrete

Four test pieces with different steel plate center-to-center distances and reinforcement ratios are subjected to low-cycle repeat quasistatic loading to optimize properties as failure mode, hysteretic curve, skeleton curve, energy dissipation parameters, strength parameters, and seismic performance of high-strength concrete low-rise shear walls. The embedded steel plates are shown to effectively restrict wall crack propagation, enhance the overall steel ratio, and improve the failure mode of the wall while reducing the degree of brittle failure. Under the same conditions, increasing the spacing between the steel plates in the steel plate concrete shear wall can effectively preserve the horizontal bearing capacity of the shear wall under an ultimate load. The embedded steel plates perform better than concealed bracing in delaying stiffness degeneration in the low-rise shear walls, thus safeguarding their long-term bearing capacity. The results presented here may provide a workable basis for shear wall design optimization.

Development and some Prospects of the Shaft Lining Structure

2012 ◽  
Vol 166-169 ◽  
pp. 636-639
Author(s):  
Lin Lin Wu ◽  
Yong Guang Lian ◽  
Yong Xiang Kong ◽  
Yong Jun Ma ◽  
Bin Jiang ◽  
...  
Keyword(s):  
High Strength Concrete ◽  
Steel Plate ◽  
High Strength ◽  
Damage Mechanism ◽  
Strength Concrete ◽  
Advantages And Disadvantages ◽  
Composite Shaft ◽  
Lining Structure ◽  
Shaft Lining

The damage mechanism and causes of the shaft lining structures are introduced, and the advantages and disadvantages of some current shaft lining structures are analyzed. The prospects of steel plate-high strength concrete composite shaft lining structure are proposed in this paper.

Bond-slip behavior of large high-strength concrete-filled circular steel tubes with different constructions

2020 ◽  
Vol 167 ◽  
pp. 105951 ◽  
Author(s):  
Hongying Dong ◽  
Xuepeng Chen ◽  
Wanlin Cao ◽  
Yizhou Zhao
Keyword(s):  
High Strength Concrete ◽  
High Strength ◽  
Steel Tubes ◽  
Bond Slip ◽  
Strength Concrete

scholarly journals Interfacial Bond Behavior of High Strength Concrete Filled Steel Tube after Exposure to Elevated Temperatures and Cooled by Fire Hydrant

Materials ◽  
2019 ◽  
Vol 13 (1) ◽  
pp. 150
Author(s):  
Zongping Chen ◽  
Jiyu Tang ◽  
Xingyu Zhou ◽  
Ji Zhou ◽  
Jianjia Chen
Keyword(s):  
Bond Strength ◽  
High Strength Concrete ◽  
Elevated Temperatures ◽  
High Strength ◽  
Steel Tube ◽  
Water Cooling ◽  
Interfacial Bond ◽  
Concrete Filled Steel Tube ◽  
Bond Behavior ◽  
Strength Concrete

For the engineering structure in case of fire, a fire hydrant is generally used for extinguishing the fire. This paper presents an experimental investigation on interfacial bond behavior of high-strength concrete-filled steel tube (HSCFST) after exposure to elevated temperatures and cooled by fire hydrant using the pull-out test of 22 specimens. According to the experimental study, the failure mechanism of HSCFST exposed to elevated temperatures and water-cooling (ETWC) was revealed, the influence of various parameters on the bond behavior was analyzed, and the calculation formula of the bond strength of HSCFST subjected to ETWC was put forward. The results show that the load-slip curves of the loading end and the free end of the specimen are basically similar, and can be divided into three types of typical curves. In the push out test, the strain on the outer surface of the steel tube is exponentially distributed with its distance from the loading end. After ETWC exposure, the bond strength of the specimen is less affected by the concrete strength, which is inversely proportional to the anchorage length, and it is basically stable after the constant temperature duration is longer than 60 min. With the increase of the maximum temperature, the ultimate bond strength increases first, then decreases and then increases, and the residual bond strength increases first and then decreases. Besides, the study indicate that cooling method has significant influence on the bond behavior, compared with natural cooling specimens, the ultimate bond strength, residual bond strength, and shear bond stiffness of water-cooling specimens are smaller, and the interfacial energy dissipation capacity is larger.

Experimental study on the interfacial bond behavior of FRP plate-high-strength concrete under seawater immersion

2020 ◽  
Vol 259 ◽  
pp. 119799
Author(s):  
Pu Zhang ◽  
Yi Hu ◽  
Yuyang Pang ◽  
Danying Gao ◽  
Qingfeng Xu ◽  
...  
Keyword(s):  
Experimental Study ◽  
High Strength Concrete ◽  
High Strength ◽  
Interfacial Bond ◽  
Bond Behavior ◽  
Strength Concrete

scholarly journals Experimental Study of High-Strength Concrete-Steel Plate Composite Shear Walls

2019 ◽  
Vol 9 (14) ◽  
pp. 2820 ◽  
Author(s):  
Dongqi Jiang ◽  
Congzhen Xiao ◽  
Tao Chen ◽  
Yuye Zhang
Keyword(s):  
Experimental Study ◽  
Reinforced Concrete ◽  
High Strength Concrete ◽  
Steel Plate ◽  
Shear Walls ◽  
High Strength ◽  
Lateral Load ◽  
Test Results ◽  
Strength Concrete ◽  
Composite Shear

Shear walls are effective lateral load resisting elements in high-rise buildings. This paper presents an experimental study of the seismic performance of a composite shear wall system that consists of high-strength concrete walls with the embedded steel plate. Two sets of wall specimens with different aspect ratios (height/width, 1.5 and 2.7) were constructed and tested under quasi-static reversed cyclic loading, including five reinforced concrete shear walls (RCSW) and six reinforced concrete-steel plate shear walls (RCSPSW). The progression of damage, failure modes, and load-displacement responses of test specimens were studied and compared based on experimental observations. The test results indicated that high-strength (HS) RCSPSW system showed superior lateral load strength and acceptable deformation capability. The axial compressive load was found to have an indispensable effect on the ductility of both RCSW and RCSPSW, and an upper limit of axial compression ratio (0.5) is recommended for the application of HS RCSPSW in engineering practices. In addition, the design strength models were suggested for predicting the shear and flexure peak strength values of RCSPSW systems, and their applicability and reliability were verified by comparing with test results.

Experimental study on seismic behavior of high-strength concrete filled double-steel-plate composite walls

2013 ◽  
Vol 88 ◽  
pp. 206-219 ◽  
Author(s):  
Jian-Guo Nie ◽  
Hong-Song Hu ◽  
Jian-Sheng Fan ◽  
Mu-Xuan Tao ◽  
Sheng-Yong Li ◽  
...  
Keyword(s):  
Experimental Study ◽  
High Strength Concrete ◽  
Seismic Behavior ◽  
Steel Plate ◽  
High Strength ◽  
Strength Concrete ◽  
Composite Walls
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