Investigation of the Mechanical Behavior of Partially Precast Partially Encased Assembled Composite Beams
Table 1
Design and test results of the specimens.
No.
Shear span length (mm)
Shear span ratio
Steel ratio (%)
Concrete strength
Stirrup
Ultimate load (kN)
Bearing capacity
Mu
Vu
PPEC-1-M
650
2.6
7.01
C30
B8@150
402.75
130.89
—
PPEC-2-M
650
2.6
8.28
C30
B8@150
463.50
150.64
—
PPEC-3-M
650
2.6
9.55
C30
B8@150
468.13
152.14
—
PPEC-4-M
650
2.6
8.28
C20
B8@150
421.55
137.00
—
PPEC-5-M
650
2.6
8.28
C40
B8@150
453.50
147.39
—
PPEC-6-M
650
2.6
8.28
C30
B8@150
382.40
124.28
—
PEC-7-M
650
2.6
8.28
C30
B8@150
488.75
158.84
—
PPEC-1-S
400
2.0
6.84
C30
B8@200
428.25
—
214.13
PPEC-2-S
400
2.0
7.76
C30
B8@200
527.88
—
263.94
PPEC-3-S
500
2.5
6.84
C30
B8@200
399.38
—
199.69
PPEC-4-S
300
1.5
6.84
C30
B8@200
464.13
—
232.07
PPEC-5-S
400
2.0
6.84
C40
B8@200
513.75
—
256.88
PPEC-6-S
400
2.0
6.84
C20
B8@200
407.25
—
203.63
PPEC-7-S
400
2.0
6.84
C30
B10@200
452.63
—
226.32
PPEC-8-S
400
2.0
6.84
C30
B8@100
476.88
—
238.44
PEC-9-S
400
2.0
6.84
C30
B8@200
478.75
—
239.38
Note. The stirrups of the PPEC-6-M specimens were in the form of welded tie rods between the upper and lower flanges. The shear span length refers to the horizontal distance between the loading point and the adjacent support, and the shear span ratio is the length of the shear span divided by the height of the composite beam.
