Field Analysis of Torsionless Bridge Gridsby J. C. Smith, (M.ASCE), Asst. Prof. of Civ. Engrg.; North Carolina State Univ., Raleigh, NC,
Donald L. Dean, (M.ASCE), Prof. of Civ. Engrg.; North Carolina State Univ., Raleigh, NC,
Serial Information: Journal of the Structural Division, 1973, Vol. 99, Issue 9, Pg. 1837-1849
Document Type: Journal Paper
Exact solutions are found for rationally based mathematical models for rectangular grids with simple end supports and flexible side supports. The solutions are valid for general loadings and are in the form of double finite Fourier series. An exact micro discrete field approach is used. The mathematical model is a partial difference equation for the unknown nodal moments and deflections. Solutions are given for nonprismatic membered, regular grids in which the identical boundary stringers are: (1) different from interior stringers; and (2) identical to interior stringers.
Subject Headings: Grid systems | Torsion | Bridge tests | Mathematical models | Load factors | Displacement (mechanics) | Fourier analysis | Domain boundary
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