Skip to main content

Table 4 Results of the multiple linear regression analysis.

From: Research on Whole-Process Tensile Behavior of Headed Studs in Steel–Concrete Composite Structures

Correlation

coefficient R

p value of

significance (F)

 

Regression

coefficient

Standard

error

Statistic

t

p

0.97

0.000

Intercept

− 2.84

1.00

− 2.831

0.006

ln(fcc)

− 0.86

0.22

− 3.924

0.000

ln(hef)

2.66

0.13

20.091

0.000

ln(Ah)

− 1.04

0.06

− 17.265

0.000

ln(Ψc)

2.59

0.12

21.262

0.000

  1. R, F, t and p are statistical values describing the results of the multiple linear regression analysis. fcc is the compressive strength of concrete cubes with side length of 200 mm; hef is the embedment depth of the headed stud; Ah is the bearing area of stud head; Ψc is the boundary coefficient considering the influence of the free edges and group studs.