Nice stand, nice test. I plan to do something close to that, but for longer prestresed concrete beams. Can I have the dimensions of the metaic structure and few pictures - details with all the stand ? Many thanx in advance if it is possible. The cylinders are Enerpac or something else ? What is the capacity and the stroke ? My email is cgeo73@gmail.com.
@brilientbulb there are eight puntual loads wich are equal (simulating Uniform Distributed Load). The aplication of the load is by two jacks and an isostatic distribution
1- The load is aplied in 8 points simulating a UDL (The spanish code and the euro code are formulated for beams under one and two points loads)
2- The beam is hyperstatic.
In my thesis I had demostrate why the big diferences betwen CODE and REAL BEAM.
As a conclussion we arrive that the big difference is by there is Arch effect who transfere (by compression) the forces to de support without produce tension in the forces.
Because we want to study the influence betwen bending moment and shear. And if you see the real structures subjected to UDL and also are hiperstatics beams, so it was intresting to know the behaiviour of real structures
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Hi, is it possible to have any information about this test? concrete parameters and load-displacement path? Thanks.
DanieleJack84 2 months ago
Nice stand, nice test. I plan to do something close to that, but for longer prestresed concrete beams. Can I have the dimensions of the metaic structure and few pictures - details with all the stand ? Many thanx in advance if it is possible. The cylinders are Enerpac or something else ? What is the capacity and the stroke ? My email is cgeo73@gmail.com.
cgeo73 9 months ago
depth 0.70 m, As/Ac=0.31%,span length 4.0m
patpadil 1 year ago
what is the size of the beam? and steel?
hjmhs 1 year ago
what type of loading is this?
brilientbulb 1 year ago
@brilientbulb there are eight puntual loads wich are equal (simulating Uniform Distributed Load). The aplication of the load is by two jacks and an isostatic distribution
patpadil 1 year ago
You drawed a 45 degree Morsch truss or different?
Civ1l7 1 year ago
wow, is that 724kN capacity vs 279kN code capacity?
stevehawking 3 years ago
Yes, but this beam has 2 particularities.
1- The load is aplied in 8 points simulating a UDL (The spanish code and the euro code are formulated for beams under one and two points loads)
2- The beam is hyperstatic.
In my thesis I had demostrate why the big diferences betwen CODE and REAL BEAM.
As a conclussion we arrive that the big difference is by there is Arch effect who transfere (by compression) the forces to de support without produce tension in the forces.
patpadil 3 years ago
Very nice.
How were you able to detect the arching effect? And when does arching come into play? Certain L/d ratios?
Also, what is the black grid/web drawn on the
side face of the beam?
stevehawking 3 years ago
The black grid is probably demec studs, so you can measure the strain in the beam.
tarasibi 3 years ago
why the beam must be hyperstatic?
why not on rollers?
rymen 2 years ago
Because we want to study the influence betwen bending moment and shear. And if you see the real structures subjected to UDL and also are hiperstatics beams, so it was intresting to know the behaiviour of real structures
patpadil 2 years ago
thank you very much,due to this test i could imagine shear failure in reinforced concrete exactly.
13allacKurdi 4 years ago 3