Computer Programs for Strip Aerotriangulation
A FORTRAN IV computer program was developed for each of the following three methods of strip aerotriangulation: (1) fully-analytical; (2) instrumental; and (3) semianalytical, by independent...

Buckling of Rigidly-Jointed Plane Trusses
A direct method for determining the critical loading pattern of a rigidly jointed truss as a whole is presented. It was found that the equation of the critical load is independent of the...

Geodesy and Photogrammetry in the 1960's
The basic geodetic control network in the United States includes about 100,000 monumented first- and second-order horizontal control stations that are accurately related one to another,...

Survey Control for Concrete Dam Construction
The development of survey controls for Morrow Point Dam, a double-curvature, concrete-arch structure, 465 ft in height, was required through the phases of reconnaissance, site investigation,...

Electronic Traverse Versus Triangulation
The USC & GS in its concern over the costs of long-range, highly accurate geodetic surveys, conducted extensive tests comparing electronic traverses, using Tellurometers with triangulation....

Snap-Through Buckling of Framed Triangulated Domes
The elastic stability problems that develop when a concentrated load is applied to a frictionless joint of a framed triangulated dome were studied. They were found to be of two types:...

Double Summation of Errors in Aerial Triangulation
Data from a 100-model grid triangulation are used to demonstrate certain features associated with the double summation of errors in the transfer of scale, azimuth, and longitudinal tilt...

Aerial Triangulation Using Independent Photo Paris
Three different methods of determining control points with second-order photogrammetric instruments have been examined. The practical uses of these methods are illustrated and analyzed....

Analogue Aerial Triangulation
Analogue aerial triangulation procedures for application on the precision photogrammetric plotting machinery are dealt with in a simple way, and the mathematical basis of the procedures...

Simultaneous Relative Orientation of Multiple Cameras
There are two groups of solutions to the problem of analytical aerotriangulation. The first group uses a cantilever extension technique based on independent triangulation of two-photograph...

Measuring Structural Behavior of Glen Canyon Dam
This paper describes layouts of two systems and the methods used for measuring the deformation of Glen Canyon Dam, a large, concrete, arch structure. The deformation is caused by water...

Cadastral Surveying in Alaska
New methods are being used to facilitate the task of surveying public lands in Alaska. These methods include the computation of positions of corner monuments so they can be positioned...

Strength of Figure Equation in Triangulation
That which is termed strength of figure equation is a basic tool for analyzing a triangulation scheme in geodetic surveying. The derivation of this equation is not readily available (as...

Aerial Traverse and Maximum Bridging Distance
Aerial triangulation methods, a major problem in photogrammetry, require the use of first-order instruments. A method for using second-order instruments, which offers two solutions—numerical...

Report on Highway and Bridge Surveys
The principle purpose of this report, Report on Highway and Bridge Surveys, is to provide a working guide for the highway engineer in designing...

Measurement of Displacement and Deformation by Geodetic Methods
Geodetic methods provide only means of determining absolute terrain displacements; aspects of triangulation, trilateration, and use of electronic distance measuring devices; new equipment...

Surveys for the Lake Pontchartrain Bridge
Problems of overall survey for bridge, having length of some 24 mi over open water; control measures used prior to construction consisted of various forms of triangulation; alignment and...

Highway and Bridge Surveys: Construction Surveys Part I Triangulation: Progress Report, Committee on Engineering Surveying
A report on control systems for bridge projects....

Measurement of Displacement and Deformation by Geodetic Methods
Geodetic methods provide only means of determining absolute terrain displacements; aspects of triangulation, trilateration, and use of electronic distance measuring devices; new equipment...

Electric Analog for Triangulation Adjustment
Various methods based on principle of electric analogy for triangulation adjustment problems are suggested; it is shown that for triangulation involving eight angle equations and two side...

 

 

 

 

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