Wind Loads Imposed by Parabolic Solar Collectors

Wave Runup on Variable Beach Profiles
The runup of breaking waves on beach profiles of variable slope is analyzed as a function of beach and offshore profile geometry, variations in stillwater level, and wave characteristics....

Bending Analysis of Parabolic Velaroidal Shells
This paper deals with the linear analysis of parabolic velaroidal shell on rectangular base subjected to a uniform normal pressure. Vlassov's governing differential equations...

Forced Vibrations of Cable Networks
Forced vibration response is investigated for hyperbolic paraboloid cable networks composed of a linkage of straight members connected by frictionless pins with concentrated masses lumped...

Design of Counterstressed Cable Structures
An approximate method of analysing counterstressed parabolic cable structures is developed and used to analyse a cable truss, a cable net, and a two-way cable grid. The significant displacements...

Comparison of FEM Analyses for a Hyperboloidal Shell

End-Supported Folded Plates Optimally Prestressed
The analysis of prismatic concrete folded plates prestressed with parabolic cables draped in the plane of the plates has been carried out by several investigators. It is the purpose of...

Parametric Investigations of Vibrating Cable Networks
Natural frequencies and modes of vibration are determined for hyperbolic paraboloid cable networks composed of a linkage of straight members connected by frictionless pins with concentrated...

Vibrations of Annular Plates of Variable Thickness
An exact solution for the circular frequencies of a polar orthotropic annular plate of uniform and parabolic thickness under the action of in-plane forces is presented. The annular plate...

Parametric Time Series: Cooling Tower Wind Pressures

In-Plane Buckling of Crane Jibs with Toplis Reeving
This paper describes a method for determining the degree of in-plane restraint imposed by the load ropes at the jib head of luffing cranes with Toplis reeving. Stability relationships...

Modified Proportional V-Notch Weirs
Seven different shaped modified proportional V-notches were designed and pertinent data for their use are given in tables 1 - 4. It is shown that the indication accuracies of these weirs...

Exact Analysis of Class of Ring Segments
An exact analysis for a class of rings whose center lines are cycloids, circles, catenaries, and parabolas based on a simplest elastic thin ring theory has been presented. General homogeneous...

Inclined Cables Under Load — Design Expressions
The findings of an earlier paper are extended to include the behavior of cables with support points at different levels. It is shown that generalized expressions can be used for the direct...

Digital Generation of Alongwind Velocity Field
The loss of surface efficiency performance of a paraboloidal reflector antenna results from various sources. In particular, the surface deformation from its ideal paraboloidal shape due...

Analysis of Hyperbolic Paraboloid Inverted Umbrella Shells with Prestressed Edge Members

Analytic and Numeric Integration for Quadrilaterals
Two-dimensional finite element analysis uses linear edge arbitrary quadrilaterals with hyperbolic paraboloid shape functions as an important element. To obtain the element stiffness matrix,...

Buckling of Hyperbolic Paraboloid Shells
The buckling characteristics of hyperbolic paraboloid shells loaded by uniform pressure were first analyzed by Reissner. Governing equations of elastic stability have been derived by Wilson...

Free-Form Arch Dam Design System
Instead of using curves, e.g. circles, parabolas, or three-centered arches, the new technique defines the upstream and downstream faces by designating coordinate locations of selected...

Reinforced Concrete Hyperbolic Paraboloid Shells
An experimental study is presented of the behavior of reinforced concrete inverted umbrella hypar shell models loaded with uniform load to failure. Reinforced microconcrete model shells...

 

 

 

 

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