Static capacity of tubular X-joints reinforced with fiber reinforced polymer subjected to compressive load

2021 ◽  
Vol 236 ◽  
pp. 112041
Author(s):  
Hossein Nassiraei ◽  
Pooya Rezadoost
Author(s):  
Jianping Lin ◽  
Ye Lin ◽  
Junying Min ◽  
Hao Teng

Hybrid structures from metal and fiber-reinforced polymer (FRP) hybrid laminates offer an attractive solution to enhance strength and structural stiffness as well as to achieve lightweight effect. The behavior of steel-FRP hybrid laminates subject to axial compression is not well understood due to lack of experimental and analytical investigations. The axial compression performance of steel-FRP hybrid laminates was studied by using axial compression test in this study. Hybrid laminates from DP980-CFRP (carbon fiber-reinforced polymer) and DP980-AFRP (aramid fiber-reinforced polymer) were fabricated and studied. An analytical model was deduced to analyze the maximum axial compressive load of steel-FRP hybrid laminates. The results demonstrate that steel-FRP hybrid laminates exhibit significantly higher maximum compressive loads and initial stiffnesses in axial compression in comparison with the single steel sheet.


2017 ◽  
Vol 747 ◽  
pp. 342-349 ◽  
Author(s):  
Mattia Santandrea ◽  
Giovanni Quartarone ◽  
Christian Carloni ◽  
Xiang Lin Gu

The rehabilitation of existing masonry elements by means of jacketing of columns using composite materials is becoming a remarkable technique in several applications that aim to increase the strength of existing masonry buildings. Fiber reinforced cementitious matrix (FRCM) composites are a newly developed strengthening system that consist of high-strength fibers embedded in a cementitious grout and externally bonded to the substrate. High resistance to fire and high temperatures, ease of handling during application, and vapor permeability with the substrate are some of the characteristics that make FRCMs a promising alternative to traditional organic composites such as fiber reinforced polymer (FRP) composites. This work presents the results of an experimental study carried out to understand the behavior of masonry columns with a square cross-section confined by steel and basalt fiber sheets embedded in a mortar matrix subjected to monotonic concentric compressive load. The effectiveness of the confinement is studied in terms of load-bearing capacity with respect to unconfined columns. The effect of corner radius for columns confined with basalt fibers is investigated.


2011 ◽  
Vol 477 ◽  
pp. 443-452
Author(s):  
Li Wen Zhang ◽  
Jun Ping Zhang ◽  
Zuo Sun

The study on compressive strength of fiber reinforced polymer confined concrete was conducted in this paper. Firstly, the general confinement mechanics was revealed, in which the confinement stress-σl, the restraint stiffness-El and the ultimate confinement stress-fl were proposed. Secondly, the influences of various parameters on compressive strength were analyzed by recent related studies and numerical simulation. The numerical simulation was carried out through the total of 27 finite element models under axial compressive load which were constructed by using software-ANSYS. Finally, the compressive strength model was set up by the dimension analysis and numerical regression.


Sign in / Sign up

Export Citation Format

Share Document