NBS Special Publication, Issues 411-415U.S. Government Printing Office, 1974 |
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Results 1-5 of 100
Page 154
... beam . Other ad hoc empirical methods are equally limited . To overcome these difficul- ties an analytic model was ... beam is made degrade ; that is , they lose strength , they soften and flow as the beam is heated . The fire ...
... beam . Other ad hoc empirical methods are equally limited . To overcome these difficul- ties an analytic model was ... beam is made degrade ; that is , they lose strength , they soften and flow as the beam is heated . The fire ...
Page 157
... beam and at the middle of the side surface of the beam . This simple procedure has been found to give the correct relationship for the differing amounts of heat entering through the bottom and sides of the beam . The convection equation ...
... beam and at the middle of the side surface of the beam . This simple procedure has been found to give the correct relationship for the differing amounts of heat entering through the bottom and sides of the beam . The convection equation ...
Page 162
... beam is much smaller than the creep in the steel , it may be neglected in the analysis of simply supported beams . The assumption is based on the fact that in most fire tests the average temperature of the concrete compressive zone is ...
... beam is much smaller than the creep in the steel , it may be neglected in the analysis of simply supported beams . The assumption is based on the fact that in most fire tests the average temperature of the concrete compressive zone is ...
Page 24
... Beam Trap Main Fiber Beam Optics 10 ° 5 ° PM . PM . Figure 2. Block diagram of forward - lobe - ratio particle sizing instrument . the The light from CW laser , either argon ion or helium - neon , is focused to a small point by a lens ...
... Beam Trap Main Fiber Beam Optics 10 ° 5 ° PM . PM . Figure 2. Block diagram of forward - lobe - ratio particle sizing instrument . the The light from CW laser , either argon ion or helium - neon , is focused to a small point by a lens ...
Page 25
... beam . The optical system of the EPA instrument is similar except the fiber optics have been replaced by a series of lenses , mirrors , and baffles . x The active optical region is defined by the diameter of the laser beam , 0.14 mm ...
... beam . The optical system of the EPA instrument is similar except the fiber optics have been replaced by a series of lenses , mirrors , and baffles . x The active optical region is defined by the diameter of the laser beam , 0.14 mm ...
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