Experimental Tests on Fibers Influence on the Size Effect on Shear - On Shear Behavior of Structural Elements Made of Steel Fiber Reinforced Concrete - page 81

B eams H5000
B eams H1000
B eams H1500
Fig. 5.9 Geometry and reinforcement details of beams (Frontal view)
5.4.2 Testing Procedure
Beams were tested under a three point loading system and a shear span-to-depth
ratio (a/d) of 3. The load was applied to the beams by an electro-mechanical jack
with displacement control. All tests began by imposing an initial displacement rate
of 0.20 mm/min, decreased to 0.10 mm/min after the appearance of some shear
crack. For beams H500 was used a jack with a load capacity of 500 kN, whereas for
beams H1000 and H1500, one of 1,500 kN was used. Load was measured with a
load cell at load point. Before starting the test, preliminary elastic cycles were
applied to verify the correct operation of the devices. Obviously, these cycles