Shear Strength Reduction Factor of Prestressed Hollow-Core Slab Units Based on the Reliability Approach
Table 1
Dimensions and material properties of shear test data collected from literature [7, 9].
Authors
Specimens name
Void type
Geometry
Prestress reinforcement
Loading
(MPa)
(mm)
(mm)
(mm2)
/S (mm3)
(mm2)
(MPa)
(MPa)
(—)
L (m)
(kN)
Walraven and Mercx (1983)
—
C, NC
64.0
250.0~294.0
225.0~260.0
171000~199000
59601~60490
470.0~940.0
1860.0
2.7~6.3
1.7~6.7
6.0
181.6~286.3
Becker and Buettner (1985)
—
NC
41.4
337.8~431.8
170.0~215.9
140645~165806
43658~44528
449.0~1032.2
1722.5
2.9~5.3
3.5~6.7
4.6~10.4
115.3~271.9
Pajari (2005)
—
C
41.0~72.6
215.0~335.0
200.0~500.0
119000~300000
36333~125833
372.0~1953.0
—
2.2~8.3
2.4~4.6
4.0~11.0
80.0~528.0
TNO Building and Constructions Research (2005) [17]
—
I, C
59.9~113.9
241.0~449.0
255.0~400.0
172000~261000
49073~114927
853.7~1684.4
—
4.2~10.4
2.5
4.0~6.0
224.0~652.0
Bertagnoli and Mancini(2009)
—
I
55.7~65.7
215.0~444.0
151.0~497.0
116000~293000
41425~130089
249.1~1440.3
1860.0
2.4~8.0
2.3~3.0
4.1~7.0
157.0~714.0
Celal (2011)
—
C
62.9~67.9
219.0~283.0
158.0~255.0
132887~180414
34246~42359
502.5~888.3
1860.0
5.4~6.9
3.0~3.8
—
163.0~297.0
Rahman et al. (2010)
—
C
40.0
315.7~325.4
212.0~262.0
151812~179115
47304~70400
592.2~789.6
1960.0
4.0~4.7
2.3~2.8
—
198.5~298.9
Im (2015)
ST200
C
60.0
247.0
175.0
121590
37839.5
504.8
1860.0
5.0
3.00
7.8
73.8
ST200R
C
60.0
247.0
175.0
121590
37839.5
504.8
1860.0
5.0
3.00
7.8
171.8
ST265
NC
60.0
257.0
230.0
151120
52853.4
504.8
1860.0
4.0
3.00
7.8
111.3
ST265R
NC
60.0
257.0
230.0
151120
52853.4
504.8
1860.0
4.0
3.00
7.8
208.4
ST4N-1
NC
60.0
260.0
360.0
212114
81201.8
899.6
1860.0
5.1
2.50
6.4
268.5
ST4N-2
NC
60.0
260.0
360.0
212114
81201.8
899.6
1860.0
5.1
2.50
6.4
250.6
ST4N-3
NC
60.0
260.0
360.0
212114
81201.8
899.6
1860.0
5.1
2.50
6.4
283.3
ST5N-1
NC
60.0
286.0
455.0
255405
111867.8
1097.0
1860.0
5.2
2.50
6.4
417.5
ST5N-2
NC
60.0
286.0
455.0
255405
111867.8
1097.0
1860.0
5.2
2.50
6.4
444.8
ST5N-3
NC
60.0
286.0
455.0
255405
111867.8
1097.0
1860.0
5.2
2.50
6.4
359.6
Total 155 specimens
Cf. void type: NC (noncircular), C (circular), and I (I shape); : specified tensile strength of prestressing steel; : compressive stress in concrete at the centroid of the section due to effective prestress.
