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ICE Proceedings

E-ISSN: 1753-7789

Volume 91, Issue 3, September 1991

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STRENGTH OF COMPOSITE TUBULAR CONNECTIONS (INCLUDING APPENDICES).
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- pp. 377–398
- Authors: A S ELNASHAI; P J DOWLING
- Document Type: Research Article
- DOI: 10.1680/iicep.1991.15621
- Proc. InstnCiu. Engrs, Part 2, 1991,91, Sept., 317-398 BUILDING PAPER BOARD9590 STRUCTURAL AND Strength of composite tubular connections A. S . ELNASHAI, PhD, DIC* P. J. DOWLING, FEngt This Paper addresses the problem analytical modellingof tubular composite connections of of the type used for pile/sleeve assemblies in steel jacket offshore platforms. A brief literature review is followed by a description of the ingredients of a non-linear constit.utive model, incorporating grout, steel, friction and bearing components. The analytical model is substantiated by comparison with experimental results for concrete cylinders, sandwich double-skin cylinders, concrete-filled tubulars and weld-beaded grouted connections...
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EXPERIMENTS ON STANDARD SPILLWAY FLOW (INCLUDING APPENDIX).
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- pp. 399–416
- Author: W H HAGER
- Document Type: Research Article
- DOI: 10.1680/iicep.1991.15622
- Proc. Instn Ciu. Engrs, Part 2, 1991, 91, Sept., 399416 PAPER9680 WATERBOARD Experiments on standard spillway flow W.H. HAGER, PhD* Two standard spillway geometries as typically encountered for high head dams are considered. The first corresponds to the Waterways Experiment Station profile, whereas the change of curvature for the second shape is continuous, and pressure conditions along the channel invert are slightly improved. The spillways considered are prismatic; they are high relative to the design head; and they d o not have piers so that practically 2D flow conditions occur...
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MODEL STUDIES OF AIR ENTRAINMENT IN THE MUELA DROP SHAFT.
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- pp. 417–434
- Authors: D STEPHENSON; J R METCALF
- Document Type: Research Article
- DOI: 10.1680/iicep.1991.15623
- Proc. Instn Civ. Engrs, Part 2, 1991, 91, Sept., 417434 PAPER 9686 WATER BOARD Model studies of air entrainmentthe in Muela drop shaft D. STEPHENSON, MSc(Eng), PhD,DSc(Eng), FICE, FSAICE* J. R. METCALF, BEng, MBL, MICE, FSAICE? Model tests were conducted on the intake a 37 km long tunnel designed convey 77 m3/s of to of water from the Lesotho Highlands South Africa. For low flows, there is a free fall of up to to 25 m from the morning glory intake in the forebay to the tunnel head water level, but at high flows the intake is submerged...
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SPREAD OF A SURFACE PLUME IN A DECELERATING PHASE OF COASTAL WATER. (INCLUDES APPENDIX).
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- pp. 435–449
- Author: H O ANWAR
- Document Type: Research Article
- DOI: 10.1680/iicep.1991.15624
- Proc. Instn Civ. Engrs, Part 2, 1991, 91, Sept., 4 3 5 4 9 PAPER 9711 WATER BOARD Spread of a surface plume the decelerating in phase of coastal water H. 0. ANWAR, Dr-Ing* The distribution of temperature in a warm water plume discharging from an outfall into a tidal current was measured during a springebb tide. From the measured data in the decelerating phase of the current horizontal isotherms, temperature profiles in the vertical and lateral directions, lateral and vertical spreads, and the plume dilution were determined...
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TEMPERATURE DISTRIBUTION IN CONCRETE BRIDGE DECKS (INCLUDING APPENDIX).
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- pp. 451–476
- Authors: H DUEN; D HO; H L CHI; C H LIU; BS 5400
- Document Type: Research Article
- DOI: 10.1680/iicep.1991.15625
- Proc. Instn Ciu. Engrs, Part 2, 1991, 91, Sept., 4 5 1 4 7 6 PAPER 9715 STRUCTURAL AND BUILDING GROUP Temperature distribution in concrete bridge decks Temperatures in two unsurfaced concrete bridge decks have been monitored continuously for three years.A mathematical model based on one-dimensional heat flow was established. The model was calibrated by comparing the statistics the calculated and measured results. of On the basis of the established mathematical model, extreme values of various thermal parameters can be calculated. Influence of the form of construction on the effective temperature of a deck wasalso discussed...
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FRAME - SOIL INTERACTION AND WINKLER MODEL.
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- pp. 477–494
- Authors: M M ALLAM; K S SUBBA RAO; B V V SUBRAMANYA; WINKLER
- Document Type: Research Article
- DOI: 10.1680/iicep.1991.15626
- Proc. Instn Ciu. Engrs, Part 2, 1991,91, Sept. 411-494 PAPER 9135 STRUCTURAL AND BUILDING BOARD Framesoil interaction and Winkler model M. M. ALLAM, ME, PhD* BE, The Winkler spring model is the most convenient representation of soil support in the domain of linear elasticity for framed structure-soil interaction analyses. The closeness of the analytical results obtained using this model with those corresponding to the elastic halfspace continuum has been investigated in the past for foundation beams. The findings, however, are not applicable to framed structures founded on beam or strip footings...
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EDGE DISTURBANCES IN SPHERICAL SHELLS WITH VARYING GEOMETRIC PARAMETERS AND SUPPORT TYPES, WITH PARTICULAR REFERENCE TO THICKENING ON PEAK STRESSES.
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- pp. 495–516
- Authors: M N PAVLOVIC; A ZINGONI; J W GECKELER; POISSON
- Document Type: Research Article
- DOI: 10.1680/iicep.1991.15627
- Proc. Instn Civ. Engrs, Part 2, 1991,91, Sept., 495-516 PAPER 9745 STRUCTURAL AND BUILDING BOARD Edge disturbances in spherical shells with varying geometric parameters and support types, with particular reference to thickening on peak stresses M. N. PAVLOVIC, BEng, MEngSc,PhD* A. ZINGONI, BSdEng), MSdEng), DIC? Theaimofthisstudyistoinvestigatethelaws that governtherelationshipbetween maximum total fibre stresses and geometric parameters-in particular, thickness t-for open thin spherical shells loaded symmetrically with respect to their axis of revolution. For this purpose, closed-form expressions defining the net stresses in such shells are derived on the basis of a simplified-but nevertheless sufficientlyaccuratetheory for non-shallow shellsof revolution...
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THREE-DIMENSIONAL NON-LINEAR FINITE-ELEMENT MODEL FOR STRUCTURAL CONCRETE. PART 1: MAIN FEATURES AND OBJECTIVITY STUDY.
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- pp. 517–544
- Authors: F GONZALEZ VIDOSA; F G VIDOSA; M D KOTSOVOS; M N PAVLOVIC; NEWTON RAPHSON
- Document Type: Research Article
- DOI: 10.1680/iicep.1991.15628
- Proc. lnstn Civ. Engrs, Part 2, 1991, 91, Sept., 517-544 PAPER 9746 STRUCTURAL AND BUILDING BOARD Three-dimensional non-linear finite-element model forstructural concrete. Part 1 :main features and objectivity study F. GONZALEZ VIDOSA, Ing, PhD* A three-dimensional (and hence also fully-triaxial) finite-element model is presented for the non-linear analysis of concrete structures. Following a thorough review and discussion of the various material and procedural factors known to affect such models, those parameters for which not sufficient evidence is currently available are investigated through an objectivity study...
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THREE-DIMENSIONAL NON-LINEAR FINITE-ELEMENT MODEL FOR STRUCTURAL CONCRETE. PART 2: GENERALITY STUDY.
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- pp. 545–560
- Authors: F GONZALEZ VIDOSA; F G VIDOSA; M D KOTSOVOS; M N PAVLOVIC
- Document Type: Research Article
- DOI: 10.1680/iicep.1991.15629
- Proc. Instn Ciu. Engrs, Part 2, 1991, 91, Sept., 545-560 PAPER 9141 STRUCTURAL AND BUILDING BOARD Three-dimensional non-linear finite-element model for structural concrete. Part generality study 2: F. GoNZALEZ VIDOSA, Ing, PhD* M. D. KOTSOVOS, Dipl-Ing, PhD, DSc? The three-dimensional finite-element model for structural concrete, proposed on the basis of an objectivity study described in the first part of this two-paper series, is now applied to a wider range of problems in an attempt to establish its generality...
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EFFECTS OF DEPTH, BED SLOPE AND SCALING ON TIDAL CURRENTS AND EXCHANGE IN A LABORATORY SCALE MODEL.
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- pp. 561–576
- Authors: R A FALCONER; Y GUOPING; G YU
- Document Type: Research Article
- DOI: 10.1680/iicep.1991.15630
- Proc. Instn Ciu. Engrs, Part 2, 1991, 91, Sept., 561-576 PAPER 9753 BOARD MARITIME Effects of depth, bed slope and scaling on tidal currents and exchange in a laboratory model harbour R.A. FALCONER, BSdEng), MSCE, PhD, DIC, MICE, FIWEM, MASCE* YU GUOPING, MSc, PhD? Details are given of the measured depth-averaged velocity distributions and exchange coeffcients for a physical model of a square harbour with a single asymmetric entrance. The model was based on typical harbour shapes in the USA and the UK; the tidal conditions were typical of those in the UK...
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PRESTRESSED CONCRETE I-BEAMS UNDER COMINED MIXED TORSION, FLEXURE AND SHEAR.
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- pp. 577–592
- Authors: B M LUCCIONI; J C REIMUNDIN; R F DANESI; ST VENANT
- Document Type: Research Article
- DOI: 10.1680/iicep.1991.15631
- Proc. Instn Ciu. Engrs, Part 2, 1991, 91, Sept., 577-592 PAPER 9708 STRUCTURAL AND BUILDING BOARD Prestressed concrete I-beams under combined mixed torsion, flexure and shear J. C. REIMUNDIN, C E t R. F. DANESI, MSc(Eng), PhD1 Very little experimental information is available about the behaviour of prestressed concrete, thin-walled open members under mixed torsion: i.e. combined Saint Venant torsion and warping torsion. This Paper presents the results of eight prestressed concrete I-beams tested to failure under combined mixed torsion, bending and shear...
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DIMENSIONLESS HILLSLOPE HYDROLOGY.
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- pp. 593–603
- Authors: A CALVER; W L WOOD
- Document Type: Research Article
- DOI: 10.1680/iicep.1991.15632
- Proc. Instn Cio. Engrs, Part 2, 1991, 91, Sept. 593-602 PAPER 9717 WATER BOARD Dimensionless hillslopehydrology A. CALVER, BSc, PhD, MIWEM* W. L. WOOD, MA, PhD? Slope discharge and its controlling variables are defined in a non-dimensional setting using the Buckingham R theorem. The method is general, although in this case data are drawn from numerical modelling of linked surface and subsurface flow equations, covering variably saturated throughflow and both infiltration-excess and saturation-excess overland flow...
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TECHNICAL NOTE. DYNAMIC RESPONSE OF FORMWORK TO CONCRETE VIBRATION.
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- pp. 603–607
- Authors: M H MURRAY; G MILLAR
- Document Type: Research Article
- DOI: 10.1680/iicep.1991.15633
- Proc. Instn Cio.Engrs, Part 2, 1991,91, Sept., 603-607 TECHNICAL NOTE 561 STRUCTURAL AND BUILDING BOARD Dynamic responseof formwork to concrete vibration M. H. MURRAY, BEng, PhD, MIEAust* G. MILLAR, BEngt A great deal of research work has been undertaken over many years into the static performance of formwork during casting of fresh concrete, with the result that design procedures world-wide have been based on the static pressures. An extensive review, however, found no published work on the dynamic performance of formwork panels...
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DISCUSSION. MINIMUM REINFORCEMENT SOLUTION FOR FLAT SLABS
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- pp. 609–615
- Authors: MZ AHMAD; T K DATTA; R E MELCHERS
- Document Type: Discussion
- DOI: 10.1680/iicep.1991.15634
- Proc. Instn Ciu. Engrs, Part 2, 1991, 91, Sept., 609-615 DISCUSSION ON PAPER 9441 STRUCTURAL ENGINEERING GROUP Minimum reinforcementsolution for flat slabs M. Z . Ahmad and T. K. Datta R.E. Melchers, University of Newcastle, Australia There is a danger in applying the approach used by the Authors that idealistic assumptions will be made. The solution they propose is limited by considering only bending action and by idealizing the columns as point supports. Neither of these conditions are met in practice...
DISCUSSION. AN ENERGY METHOD FOR ARCH BRIDGE ANALYSIS.
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- pp. 617–630
- Authors: R J BRIDLE; T G HUGHES; M J BLACKLER; P C DAS; W J HARVEY; E MARKLAND; F W SMITH; CASTIGLIANO
- Document Type: Discussion
- DOI: 10.1680/iicep.1991.15635
- Proc. Instn Ciu. Engrs, Part 2, 1991, 91, Sept., 617430 DISCUSSION ON PAPER 9575 STRUCTURAL ENGINEERING GROUP An energy method for arch bridge analysis R.J. Bridle and T. G. Hughes Dr M. J. Blackler, Mott MacDonald, Special Services Division, Croydon For almost two years, Mott MacDonald has co-operated jointly with the Authors and others at the University of Wales College of Cardiff, in the further development of the method for bridge assessments. This work is being carried out for the Transport andRoad Research Laboratory (TRRL)...

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ICE - Institution of Civil Engineers - Virtual Library

ICE Proceedings

Volume 91, Issue 3, September 1991