PSI - Issue 44

Ciro Del Vecchio et al. / Procedia Structural Integrity 44 (2023) 1411–1418 Ciro Del Vecchio et al. / Structural Integrity Procedia 00 (2022) 000 – 000

1414

4

The anchors were realized injecting cement-based mortar in blinded holes by means of a filler pump. Then the steel bar was inserted into the hole. Two different diameters of bars,10 mm and 14 mm, were used. The test matrix is reported in Table 1 where the label, the reference hole, the positions (center or edge), the bar diameter and the axial stress in the wall are specified.

180

370

370 180

330

Section A-A

300

A

380 365 365

2

3

6

Steel bar (tested anchor)

1110

5

4

1

Reaction frame

30

A

1100

350

Fig. 2. Geometry of the masonry wallet and details of the tested anchors.

Table 1. Test matrix

Reference hole in fig. 2 Position

Bar diameter [mm]

Axial pressure [MPa]

Label

 10_center_0.15  10_edge_0.15  14_center_0.15  14_edge_0.15  14_edge_0.10  14_edge_0.20

1 2 3 4 5 6

center edge center edge

10 10 14 14 14 14

0.15 0.15 0.15 0.15 0.10 0.20

edge edge

Test setup for axial load pressure

Masonry wallet

Hollow jack

Steel sleeve

Oil pump

Data acquisition system

Fig. 3. Test setup