Calculation of deformations of perforated beams
deflections with the theory of composed bars was modified by author with integration of differential equation in Fourier series [6].
But using this approach the effect of shear lag is neglected, which may lead to underestimation of
deflections, see Bazant et al.
The final inspection conducted by TDOT and Timewell engineers followed TDOT and AASHTO criteria, noting that
deflection testing was to occur no sooner than 30 days after installation.
Because the outer wall has been constructed, the design of the inner structure has a significant influence on the
deflection and stability of the support structure.
Once the Green's function is found, the
deflection or internal forces can be easily computed.
This approach utilizes the
deflection of the pipe, calculated using a version of the classic Iowa Formula, in estimating the wall-bending stresses in the pipe.
The
deflections and maximum tensile stresses of the shell with an optimized thickness distribution (design 2) are compared to the same shell with edge beam of uniformly varying cross section (design 3) and another shell with a uniform thickness of 8,9 cm (design 1).
In this process, more commonly referred to as backcalculation, a numerical optimization method is employed so that the measured
deflection basin agrees with the
deflections given by a numerical model.
The
deflections, curvature and crack width were measured at each load stage.
To solve this problem, FHWA researchers developed the rolling wheel deflectometer (RWD), which can perform structural evaluations by collecting continuous profiles of pavement
deflection while traveling at normal highway speeds.
It is concluded that air-to-air exchangers should be designed and manufactured with pre-stressed membranes and a good support scheme should be chosen to reduce the mass flow rate variation caused by membrane
deflections.
For a 4-inch diameter orifice meter, Burgin (1971) reported that plate
deflections of 1/8 inch gave an under-measurement error between 2.