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wiki:sns:sns2014:example_restraints [2017/07/13 09:24] clairewiki:sns:sns2014:example_restraints [2023/12/13 13:47] (current) – [Related Tutorial Videos] michael
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 +~~CLOSETOC~~
 +{{TOC:wide}}
 +\\
 ======Example Restraints====== ======Example Restraints======
 Here are a few example restraints to help you get started. Here are a few example restraints to help you get started.
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 So while this method allows for rotation about the end, it does not fully allow the beam to extend at the ends. So while this method allows for rotation about the end, it does not fully allow the beam to extend at the ends.
  
-{{ simply_supported_neutral_load.png?600 }}+{{ :simply_supported_neutral_load.png?600 |}}
  
  
-{{ simply_supported_neutral_result.png?600 }}+{{ :simply_supported_neutral_result.png?600 |}}
  
 ====Method 2: Apply equilibrium loads and restrain edge in middle of beam==== ====Method 2: Apply equilibrium loads and restrain edge in middle of beam====
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 For this loading, the best choice to restrain the model is where the slope of deflection will be zero. In this case, zero bending slope occurs at the mid-point of the beam because the loading is symmetric.  This example restrains the midpoint edge at the bottom, although the edge at the top is also a valid choice. For this loading, the best choice to restrain the model is where the slope of deflection will be zero. In this case, zero bending slope occurs at the mid-point of the beam because the loading is symmetric.  This example restrains the midpoint edge at the bottom, although the edge at the top is also a valid choice.
  
-{{ simply_supported_eqlib_load.png?600 }}+{{ :simply_supported_eqlib_load.png?600 |}}
  
 The static equilibrium loading produces the same bending shape and almost the same peak bending stress as the first case.  In addition, the peak Z-direction deflections are also quite similar.  However, the peak deflection had to be measured from a different point.  Because of the differing restraints, the peak deflections differ in sign. The static equilibrium loading produces the same bending shape and almost the same peak bending stress as the first case.  In addition, the peak Z-direction deflections are also quite similar.  However, the peak deflection had to be measured from a different point.  Because of the differing restraints, the peak deflections differ in sign.
- +{{ :simply_supported_eqlib_result.png?600 |}}
-{{ simply_supported_eqlib_result.png?600 }}+
  
  
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 A sliding restraint is applying as a "partial restraint" in Scan&Solve.  A sliding restraint is applying as a "partial restraint" in Scan&Solve. 
  
-==== Method 1: asymmetric restraint====+==== Example 1: Asymmetric restraint====
 in this case,  the left footing of an arch if fully retrained in x,y, and z, directions (indicated by appearance of green, blue, and red colors),  while the right footing is restrained in z direction only, shown here in blue. As the result, the left footing is fixed, but the right footing can slide in x-y plane. \\ in this case,  the left footing of an arch if fully retrained in x,y, and z, directions (indicated by appearance of green, blue, and red colors),  while the right footing is restrained in z direction only, shown here in blue. As the result, the left footing is fixed, but the right footing can slide in x-y plane. \\
 {{:1.hejeiicd.png?300|}}{{:2.cecfdebc.png?300|}} {{:1.hejeiicd.png?300|}}{{:2.cecfdebc.png?300|}}
  
  
-==== Method 2: symmetric restraint ====+==== Example 2: Symmetric restraint ====
 The sliding can be made symmetric by adding an edge to the arch at the centerline, and applying an XY restraint to the edge (required for numerical stability), and Z restraints to the footings. Now both footings can slide in the x-y plane. \\ The sliding can be made symmetric by adding an edge to the arch at the centerline, and applying an XY restraint to the edge (required for numerical stability), and Z restraints to the footings. Now both footings can slide in the x-y plane. \\
 {{:3.hgcheffh.png?300|}}{{:4.egibjejb.png?300|}} {{:3.hgcheffh.png?300|}}{{:4.egibjejb.png?300|}}
  
-This short video shows how to restrain edges in Scan&Solve +=====Related Tutorial Videos===== 
-{{http://www.youtube.com/v/8zEEzcVdd-4?.swf?560??315}}+<WRAP half column> 
 +This short video shows how to restrain edges in Scan&Solve
 + 
 +{{youtube>8zEEzcVdd-4?large}} 
 +</WRAP> 
wiki/sns/sns2014/example_restraints.1499959491.txt.gz · Last modified: 2017/07/13 09:24 by claire