Strength and Stiffness of Corrugated Metal Shear Diaphragms
The subject diaphragms are made from individual corrugated sheets which are connected to one another and to framing members with discrete fasteners. Failure of them under load is most...

Tunnel Sealing Method with Waterproofed PVC Sheets
A modern method of tunnel sealing with plastic waterproof polyvinyl chloride sheets for tunnels and all kinds of underground constructions is presented. Using the heating wedge manual...

Flow Resistance in Broad Shallow Grassed Channels
Resistance to sheet flows over natural turf surface is investigated experimentally. The formulation of a functional relationship between the resistance coefficient and controlling parameters...

Failure of Anchored Sheet Pile Walls
Several failures of anchored sheet pile walls have occurred in Sweden. Most of these have been caused by insufficient stability or by frost action. Large movements have been observed when...

Sheet Pile Interlock Tension-Probabilistic Design
A design method based on probability theory is particularly appropriate for a cellular sheet pile-type structure in which an isolated low strength interlock can cause catastrophic failure....

Shear of Light-Gage Partitions in Tall Buildings
Connection details of wall panels fabricated of light-gage corrugated sheets are described. The difference between these panels and other panels used in practice as shear diaphragms are...

Interlock Tension in Steel Sheet Piling
A need exists for representation of the interlock strength of steel sheet piling as a distribution for two main reasons. First, this strength is highly variable, and second, this aspect...

Curved Diaphragm Cellular Cofferdams
The use of curved rather than straight cross walls in diaphragm cofferdams makes the cells independently stable, eliminating the major disadvantage of diaphragm cofferdams. Examples are...

Frost Heaves — A Major Dilemma for Ice Arenas
The ice sheets of three arenas in Minneapolis-St. Paul have had frost heaves ranging from seven to eleven inches (0.2 to 0.3 m). Proper design should prevent frost from penetrating the...

Theory and Practice of Public Participation in Planning
Communications, sociology and social psychology, and political science provide the principal theoretical base for public participation programs. Planners more readily accept improved communications...

Structural Behavior of Thick Cold-Formed Steel Members
A study was made on the use of the Specification for the Design of Cold-Formed Steel Structural Members of the American Iron and Steel Institute (AISI) for the design of steel members...

Sheet Pile Design with Variable Soil Parameters
A computer program was developed to assist design engineers in their calculations for a sheet pile section under given soil conditions and a given factor of safety in which the Free Earth...

Rainfall Effect on Sheet Flow over Smooth Surface
The variation of friction factor for different flows and rainfall conditions is established by statistical analysis. Boundary shear stress was directly measured by hot-film anemometry....

Seepage into Sheet Pile Cofferdam
It has been shown that the Weirstrass zeta function transforms a rectangle conformally into the geometry of a sheet pile cofferdam. A study of the relevant properties of this and the corresponding...

Buckling of Longitudinally Stiffened Sheets
A new formula is developed to determine the plate thickness of stiffened light gage members. Based on the concept that intermediate stiffeners transform the plate into an orthtropic plate,...

Elastic Waves in Half-Space with Thin Barrier
A combined perturbation-numerical approach to the solution of the problem of wave propagation across a thin barrier imbedded in an elastic half-space is given. The zero order term in a...

Model Tests with Thin Sheets to Reduce Evaporation
Laboratory physical studies have been used to determine the evaporation coefficient for a circular sheet such as a physically separate barrier suspended over the water surface. The circular...

Approximately Linear Low-Pass Wave Filters
Tests were conducted on an inexpensive low-pass filter comprising parallel sheets of fiber glass gauze. In these tests a spectral wave generator was used and transmissivity was measured:...

Volume of Snowmelt Intercepted by Logging Roads
Snowmelt runoff into two 100-ft sections of logging road near the Montana-Idaho border was measured from 1965 to 1967. For two years, subsurface seepage from the road cut was measured...

Resistance Coefficients for Steady Spatially Varied Flow
In spatially varied flow three coefficients in Weisbach f form are involved which are sometimes termed resistance coefficients. They are the frictional resistance coefficient, the dissipated...

 

 

 

 

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