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ICE Proceedings

E-ISSN: 1753-7789

Volume 89, Issue 3, September 1990

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WAVE ENERGY ABSORPTION BY THE BRISTOL CYLINDER - LINEAR AND NON-LINEAR EFFECTS.
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- pp. 317–340
- Authors: J P DAVIS; COULOMB
- Document Type: Research Article
- DOI: 10.1680/iicep.1990.9394
- Proc. Znstn Civ. Engrs, Part 2, 1990, 89, Sept., 317-340 PAPER 9438 GROUP ENGINEERING ENERGY Wave energy absorption by the Bristol Cylinder-linear and non-linear effects J. P. DAVIS, BSc, PhD* A previous paper described a scheme for the full-scale engineering of the Bristol Cylinder wave energy device. The paper presented some results of the performance of the device in various three-dimensional random seas as a justification for the economic performance claims. In this Paper, the fundamental hydrodynamics of the device are examined in twodimensional flow...
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AERODYNAMIC STABILITY OF SUSPENSION BRIDGES SIMPLIFIER.
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- pp. 341–353
- Author: M A M HERZOG
- Document Type: Research Article
- DOI: 10.1680/iicep.1990.9395
- h o c . lnstn Civ. Engrs, Part 2, 1990, 8 9 , Sept., 341-353 PAPER 9568 STRUCTURAL ENGINEERING GROUP Aeroelastic stabilityof suspension bridges simplified M. A. M. HERZOG, Drtechn, MICE, MAKE* Firstly, two approximate methods of analysis for aerostatic and aerodynamic stabilities of suspension bridges under wind action are outlined. Secondly, the critical windspeeds calculated by these methods, those calculated from sectionand full model tests, and observations for actual structures are compared-in 48% of cases the aerostatic analysis yields a lower critical wind speed than the aerodynamic one...
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ANTISYMMETRIC PLANE STRAIN FLEXURE OF A FINITE STRIP FOUNDATION ON A HALF-SPACE.
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- pp. 355–373
- Authors: J A HEMSLEY; CHEBYSHEV; FREDHOLM
- Document Type: Research Article
- DOI: 10.1680/iicep.1990.9396
- Proc. Instn Civ. Engrs, Part 2, 1990,89, Sept., 3 5 5 3 7 3 PAPER 9574 STRUCTURAL ENGINEERING GROUP Antisymmetric plane strain flexure a finite of strip foundation a half-space on J. A. HEMSLEY, MEng, PhD, DIC, MICE, MIStructE* An exact elastic solution is derived for the antisymmetric plane strain flexure of a strip foundation of finite width in frictionless contact with a half-space. The governing equations for strip and half-spaceare analytically reduced to a single Fredholm integral equation for interfacial slope, and the resulting Chebyshev expansion is integrated analytically give all to other quantities of flexure...
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AN ENERGY METHOD FOR ARCH BRIDGE ANALYSIS.
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- pp. 375–385
- Authors: R J BRIDLE; T G HUGHES
- Document Type: Research Article
- DOI: 10.1680/iicep.1990.9397
- Proc. Instn Civ. Engrs, Part 2, 1990, 89, Sept., 3 7 5 3 8 5 PAPER 9575 STRUCTURAL ENGINEERING GROUP An energy methodfor arch bridgeanalysis R. J. BRIDLE, BSc, FEng, FICE, ppIHT* T. G. HUGHES, PhD, M I C E ~ A computer based energy method of analysing arches for loads up to failure is proposed, which modifiesthe arch geometry and stiffnessmodel the effects the masonry's inability to of to sustain tensile stress. This `thinning' of the arch ring in areas of tension enables the formation of incipient hinges to be modelled...
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QUANTIFYING LIMIT-STATES OF ROTATION CAPACITY IN FLEXURAL MEMBERS.
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- pp. 387–406
- Author: A R KEMP
- Document Type: Research Article
- DOI: 10.1680/iicep.1990.9398
- h o c . Instn Civ. Engrs, Part 2, 1990, 89, Sept., 387406 GINEERING CTURAL PAPER 9589 GROUP Quantifying limit-states of rotation capacity in flexural members A. R. KEMP, BSc(Eng), MSc(Eng), PhD, MIStructE, FSAICE* A general approach is described for quantifying inelastic behaviour of flexural members, using limit-states principles. involves assessing available and required inelastic rotations This loss of connections and rotation capacities flexural members before of moment resistance. of A lower-bound method of elastic-plastic analysis is proposed and illustrated for calculating required inelastic rotations...
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SIMPLE COMPUTER ANALYSIS OF CIRCULAR RAFTS UNDER VARIOUS AXISYMMETRIC LOADING AND ELASTIC FOUNDATION CONDITIONS.
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- pp. 407–431
- Authors: E S MELERSKI; WINKLER
- Document Type: Research Article
- DOI: 10.1680/iicep.1990.9399
- Proc. Instn Civ. Engrs, Part 2, 1990, 8 9 , Sept., 407-431 PAPER 9595 STRUCTURAL ENGINEERING GROUP Simple computer analysis of circular rafts under variousaxisymmetric loading and elastic foundation conditions E. S. MELERSKI, MSc, PhD* A simple numerical method of elastic analysis of circular disc or ring (annular) rafts under various axisymmetric loading and foundation conditions is outlined. Plate behaviour is assumed to follow the thin platetheory, and the soil bed can be modelled by either Winkler springs or an elastic half-space...
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TECHNICAL NOTE. SPATIAL TRANSFER OF EXTREME SEA LEVEL DATA FOR USE IN THE REVISED JOINT PROBABILITY METHOD.
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- pp. 433–438
- Authors: J A TAWN; J M VASSIE
- Document Type: Research Article
- DOI: 10.1680/iicep.1990.9400
- h o c . Instn Cio. Engrs, Part 2, 1990, S , Sept., 433-438 s TECHNICAL NOTE 535 WATER ENGINEERING GROUP Spatial transfer extreme sea level data for of use in the revised joint probability method J. A. T A W , BSc, PhD* J. M. VASSIE, BSc, PhD? Estimates of extreme sea level heights for specific`return periods' are often required from data which are not ofsufficient length for a conventionalextreme value analysis.This problem is examined in this Technical Note, a solution involvingthe transfer of extreme and level information to a target site from a nearby reference port, for which a long data set is available, is illustrated...
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DISCUSSION. STRUCTURAL RELIABILITY ASSESSMENT FOR MAJOR STRUCTURES.
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- pp. 439–442
- Authors: R E MELCHERS; R C TURNER
- Document Type: Discussion
- DOI: 10.1680/iicep.1990.9401
- Proc. Instn Civ. Engrs, Part 2,1990,89, Sept., 439442 9395 DISCUSSION COMPUTER APPLICATIONS AND METHODS GROUP Structural reliability assessment major for structures R.E.Melchers c. Turner, Imperial College of Science, Technology & Medicine, and W . S. Atkins Engineering Sciences Papers on structural reliability are very welcome, as they appear too infrequently in these Proceedings. However, a number of points concerning the Monte Carlo simulation need to be clarified. 49. Firstly, the Monte Carlo techniques discussed in the Paper are not new...

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ICE - Institution of Civil Engineers - Virtual Library

ICE Proceedings

Volume 89, Issue 3, September 1990