# Grid-Framework Method for Plates

*A grid-framework procedure is presented for the analysis of plates in flexure. A square or rectangular grid model with side and diagonal members is used to represent a similar element...*

Stress in Hyperboloids under Edge Loadings

*A solution of the bending of thin shells of revolution with negative Gaussian curvature is presented. This solution is derived from the general theory presented by E. Reissner and later...*

Slow Viscous Flow of an Incompressible Suspension

*A mathematical model describes approximately the viscous creeping and incompressible flow of the fluid part of a suspension of equidistant, rigid, spherical particles, when the suspension...*

Slenderness Effects in Buildings

*Methods for analyzing slenderness effects in tier buildings are proposed. Some of these methods apply to buildings with braced frames, as well as to those with unbraced (space) frames....*

Analysis of Deflections in Elastic-Plastic Frames

*A method is proposed to compute deflections throughout an elastic-plastic plane frame. It is related to the Williot-Mohr analysis for trusses. After the force analysis, all frame joints...*

Inelastic Steel Beams Under Uniform Moment

*The out-of-plane behavior of closely braced steel wide-flange beams is examined. Unloading (failure) of such beams terminates their rotation capacity and thus their usefulness in plastic...*

Complementary Energy Method for Finite Deformation

*A principle of stationary complementary energy is developed for statically loaded structures with finite displacements, rotations, and strains, made of material with linear or nonlinear...*

Dynamic Response Functions

*Visco-elastic, shear, and rotatory inertia effects are introduced into the Laplace transforms of the response functions for lattice structures. The response functions are written in a...*

Optical Tooling for Precise Structural Measurements

*An experimental application of optical tooling to a structural engineering problem was made in the Truss Bridge Research Project at Northwestern University. The methods and equipment used...*

Experimentation Rotation Capacity of Steel Beams-Columns

*The results of 31 tests on small scale mild-steel I-section stanchions are presented. The specimens were loaded by a constant axial load and bending moment acting at one end in the plane...*

Interpretation of Moire Patterns

*A description of several of the basic properties of moiré patterns used in strain analysis is presented. The uniqueness and continuity of displacements are noted, compared with topological...*

Buckling of Stepped Columns with Rotated Ends

*Presented is an approximate solution to the problem of determining critical buckling loads for long columns with abrupt changes in inertia properties at the ends. The ends of the column...*

Stresses in a Pressurized Box

*Considering each of the six sides of a closed, pressurized box as a thin plate subjected to an unknown distribution of edge moments, the latter may be found by assuming that the rotations...*

Analysis of Arch Frames

*The analysis of arch frames is presented by means of an extension of the moment-distribution method which automatically accounts for sidesway. In the fixed-end stage, the frame undergoes...*

Calibration of A325 Bolts

*Direct tension and torqued tension tests of 170 A325 bolts were carried out to determine the behavior and performance of individual A325 bolts. The major variables studied in the program...*

Velocity Concentrations in Stratified Fluids

*Examples of velocity concentrations or jets in fluid systems; systems are discussed in which vorticity is present or is generated by density variations; typical jet streams of atmosphere...*

Optical Current Meter

*Stroboscopic device developed to measure surface velocities of water in open channels without immersing equipment in stream; meter is light-weight battery-powered unit consisting of low-power...*

Experimental Determination of Sludge-Flow Parameters

*Use of rotational and capillary viscometer for experimental determination of non-Newtonian flow parameters of sewage sludges is considered; description of equipment and calibrating procedures...*

Structural Model Analysis by Means of Moire Fringes

*Use of moire fringes in measurement of displacements and rotations in structural models; method, applied to case of simply supported beam, continuous beam, and 2 plane frames, gave results...*

Analysis of Frames Loaded into the Plastic Range

*Presented precise method of analysis involves determination of compatible moment of rotation of joint by intersection of 2 moment vs end rotation curves of adjoining members; effects of...*

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