Figure 3 - uploaded by Patricia Stouter
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Testing frame (left to right): a) Frame attached to sample base. b) Straps as hold-downs and horizontal ties. c) Piston in cradle with steel plates on plywood pressure plate for weak fill sample.
Source publication
Earthbag walls with conventional inserted rebar reinforcement are too highly deformable for many projects in high seismic risk areas. Two 0.9 m (3') x 1 m (3.3') wide 60% scale sample walls were built to test a novel embedded but base-anchored 'cut-bag' rebar technique. Under static horizontal force these plastered samples showed that better connec...
Contexts in source publication
Context 1
... of a welded frame (Figure 3a) was bolted to 100x150 mm (4x6) spacer blocks on each side of the base. Ratchet straps were used to reduce horizontal force on the four lag bolts attaching the base to the testing frame and as vertical hold-downs (Figure 3b). ...
Context 2
... of a welded frame (Figure 3a) was bolted to 100x150 mm (4x6) spacer blocks on each side of the base. Ratchet straps were used to reduce horizontal force on the four lag bolts attaching the base to the testing frame and as vertical hold-downs (Figure 3b). A handpowered 44 kN (10,000 lb-f) hydraulic jack applied quasi-static pressure through a 12.6 cm² (1.96 si) piston supported on a cradle clamped to the test frame. ...
Context 3
... handpowered 44 kN (10,000 lb-f) hydraulic jack applied quasi-static pressure through a 12.6 cm² (1.96 si) piston supported on a cradle clamped to the test frame. The pressure plate of plywood spread force to both the bond beam and the top earthbag course (Figure 3c). A 114 mm (4.5") diameter analog pressure gauge to 6.9 kPa (1000 psi) was used for lower force levels and a smaller 41 MPa (6,000 psi) class B for higher loads. ...
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