Advances in Civil Engineering / 2018 / Article / Tab 4

Research Article

FRP-Confined Concrete Columns: A New Procedure for Evaluating the Performance of Square and Circular Sections

Table 4

Parameters and coefficients for evaluating the strength enhancement from existing analytical expressions.

ModelCoefficientsOther parameters and coefficients

CNR-DT200 [10]α = 1
k1 = 2.6
m = 2/3

kv = kα = 1 for continuous jackets with fibers ⊥ to the member axis, Ag = cross-section area of the specimen

Triantafillou et al. [26]α = 1
k1 = 2.79
m = 1

kv = kα = 1 for continuous jackets with fibers ⊥ to the member axis

Campione and Miraglia [24]α = 1
k1 = 2
m = 1

ffu = ultimate strength of the fiber, ki = 0.2121

Pellegrino and Modena [23]α = 1

m = 1

Mirmiran et al. [27]α = 1

m = 1

Di Ludovico et al. [28]α = 1
k1 = 2.94
m = 1

kv = kα = 1 for continuous jackets with fibers ⊥ to the member axis

Youssef et al. [38]For circular sectionsFor circular sections
α = 1.0
k1 = 2.25
m = 1.25
ke = 1.0
 = longitudinal reinforcement ratio
For square sectionsFor square sections
α = 0.50
k1 = 1.225
m = 0.6

We are committed to sharing findings related to COVID-19 as quickly and safely as possible. Any author submitting a COVID-19 paper should notify us at help@hindawi.com to ensure their research is fast-tracked and made available on a preprint server as soon as possible. We will be providing unlimited waivers of publication charges for accepted articles related to COVID-19. Sign up here as a reviewer to help fast-track new submissions.