Combination form analysis and experimental study of mechanical properties on steel sheet glass fiber reinforced polymer composite bar
Chao WU , Xiongjun HE , Li HE , Jing ZHANG , Jiang WANG
Front. Struct. Civ. Eng. ›› 2021, Vol. 15 ›› Issue (4) : 834 -850.
Combination form analysis and experimental study of mechanical properties on steel sheet glass fiber reinforced polymer composite bar
The concept of steel sheet glass fiber reinforced polymer (GFRP) composite bar (SSGCB) was put forward. An optimization plan was proposed in the combined form of SSGCB. The composite principle, material selection, and SSGCB preparation technology have been described in detail. Three-dimensional finite element analysis was adopted to perform the combination form optimization of different steel core structures and different steel core contents based on the mechanical properties. Mechanical tests such as uniaxial tensile, shear, and compressive tests were carried out on SSGCB. Parametric analysis was conducted to investigate the influence of steel content on the mechanical properties of SSGCB. The results revealed that the elastic modulus of SSGCB had improvements and increased with the rise of steel content. Shear strength was also increased with the addition of steel content. Furthermore, the yield state of SSGCB was similar to the steel bar, both of which indicated a multi-stage yield phenomenon. The compressive strength of SSGCB was lower than that of GFRP bars and increased with the increase of the steel core content. Stress-strain curves of SSGCB demonstrated that the nonlinear-stage characteristics of SSGCB-8 were much more obvious than other bars.
steel sheet GFRP composite bar / combination form / numerical modeling / mechanical properties test / strength
| [1] |
|
| [2] |
|
| [3] |
|
| [4] |
|
| [5] |
|
| [6] |
|
| [7] |
|
| [8] |
|
| [9] |
|
| [10] |
|
| [11] |
|
| [12] |
|
| [13] |
|
| [14] |
|
| [15] |
|
| [16] |
|
| [17] |
|
| [18] |
|
| [19] |
|
| [20] |
|
| [21] |
|
| [22] |
|
| [23] |
|
| [24] |
|
| [25] |
|
| [26] |
|
| [27] |
|
| [28] |
|
| [29] |
|
| [30] |
|
| [31] |
|
| [32] |
|
| [33] |
|
| [34] |
|
| [35] |
|
| [36] |
|
| [37] |
|
| [38] |
|
| [39] |
|
| [40] |
|
| [41] |
|
| [42] |
|
| [43] |
|
| [44] |
|
| [45] |
|
| [46] |
ASTM. Standard Specification for Carbon and Alloy Steel Bars Subject to End-Quench Hardenability Requirements. West Conshohocken, PA, 2020 |
| [47] |
ACI 440.3R–04. Guide Test Methods for Fiber-Reinforced Polymers (FRPs) for Reinforcing or Strenthening Concrete Structures. Farmington Hill: American Concrete Institute, 2004 |
| [48] |
JG/T 406–2013. Glass Fibre Reinforced Plastics Rebar for Civil Engineering. Beijing: China Building Industry Press, 2013 |
| [49] |
GB/T 1448–2005. Fiber-reinforced Plastics Composites-Determination of Compressive Properties. Beijing: Standardization Administration of the People’s Republic of China, 2005 |
Higher Education Press 2021.
/
| 〈 |
|
〉 |