Centrifugal Method of Mixing Soil with Stabilizer
A new method of pulverizing and mixing soil with stabilizers is considered for the purpose of minimizing the energy required in these operations. The method consists of extruding soil...

Response of Torsionally Excited Foundations
Investigated herein are two aspects of the response of a rigid massless foundation of circular plane which is supported at the surface of a homogeneous elastic half space and is excited...

Flow Through Annulus with Large Radial Clearance
This investigation deals with a theoretical analysis of the characteristics of a fully developed turbulent helical flow in a concentric annulus, and an experimental program to verify the...

Ripple Profiles Modeled Mathematically
Fundamental to the mechanics of ripple and dune behavior is the eddy zone in the lee of the bedform. A profile model based on irrotational flow and incorporating an eddy zone is presented...

Predicted Pullout Strength of Sheet-Piling Interlocks
A theoretical study was made to determine the role of material properties and interlock dimensions in the pullout strength of steel sheet piling. Pullout occurs after large plastic rotations...

Tangent Stiffness in Space Frames
A tangent stiffness matrix is derived for the geometrically nonlinear analysis of elastic space frames, based on the assumption of small relative deformations but large rotations. The...

Behavior of Polygonal and Circular Ring Beams
In this paper, expressions for rotational stiffness of polygonal and circular rings are derived and interpreted, and results are also presented graphically as design aids. A special study...

Elasto-Plastic Analysis of Coupled Shear Walls
An elasto-plastic procedure for analysis of coupled shear walls by assuming a partial or complete collapse mechanism is presented. The complete collapse mechanism is assumed to occur when...

Spiral Flows in Finite Rotating Annular Tubes
Three-dimensional, time-dependent, axisymmetric flows of an incompressible Newtonian fluid in an annular tube as well as in a circular one were analyzed numerically. The flow was produced...

Stability of Framed Structures
The stability characteristics of multistory framed structures are studied herein. A simplified reduced eigenvalue approach to include the effect of joint rotation is used, and its validity...

Finite Deflections of Circular Membranes
The behavior of membrane-like structures is of interest in conjunction with problems concerning slack diaphragms, inflatable structures, explosive forming of metals, interpretation of...

Free Vibrations of Arches Flexible in Shear
An analysis of the in-plane, free vibration of uniform, circular arches is made, considering the effects of both shearing deformation and rotatory inertia. From a study of numerical solutions,...

Free Vibration of Horizontally Curved Beams
The effects of transverse shearing deformation and the flexural rotatory inertia on the natural frequencies of horizontally circularly curved beams were studied....

Transverse Anisotropy in Disks and Plates
This technical note describes the method of limit analysis which is used to obtain the collapse loads of a rotating disk and circular plate under lateral loading....

Inviscid Shear Flow with Corner Eddies
Steady rotational flow of an inviscid fluid in a two-dimensional channel with symmetrical, asymmetrical abrupt contractions and also flow in a circular channel with a symmetric abrupt...

Helical Flow through Concentric Annulus
The object of this investigation is to study the properties of a fully developed turbulent helical flow in a concentric annulus. A steady axial flow is assumed to take place under a constant...

Behavior of Laterally Loaded Piles: III—Socketed Piles
An analysis is made of the working-load behavior of a single laterally loaded pile, the tip of which is socketed into rock underlying the soil layer, for various combinations of boundary...

Plastic Behavior of Hollow Structural Sections
A series of tests on beams of hollow structural sections was conducted to determine their adequacy in plastic design. A minimum plastic rotation requirement of law times the elastic limit...

Composite Beams in Torsion
The experimental behavior of four 12 WF 27 sections in composite action with a reinforced concrete slab (2 in., 3 in., 4 in., 6 in. thick) by 36.0 in. wide, subjected to only an end torque...

Concrete Arch Culvert Behavior-Phase 2
An arch culvert, under a 240-ft. (73-m) embankment, was tested to assess influence on structural behavior of four methods of backfilling, including Method A, employing well-compacted structure...

 

 

 

 

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