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ICE Proceedings

E-ISSN: 1753-7789

Volume 79, Issue 3, September 1985

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DESIGN AND CONSTRUCTION OF A MODEL PRESTRESSED CONCRETE BIFURCATED BOX GIRDER BRIDGE.
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- pp. 439–454
- Authors: SH PERRY; P WALDRON; MW PINKNEY
- Document Type: Research Article
- DOI: 10.1680/iicep.1985.833
- Proc. Instn Civ. Engrs, Part 2,1985,79, Sept., 439454 PAPER 8899 STRUCTURAL ENGINEERING GROUP Design and construction of a model prestressed concrete bifurcated box girder bridge S. H. PERRY, BSc(Eng),PhD, MICE, MIStructE* P. WALDRON, BSc, PhD, DIC, MICEt M. W. PINKNEY, MA, MSc,DIC, MIStructES The design and construction of a 1 : 12 scale prestressed concrete spine beam model of an elevated highway intersection is described. The model represents a four-lane carriageway bifurcating into three- and two-lane spans, and is of typical single and double box girder construction, incorporating large side cantilevers...
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ELASTIC ANALYSIS AND EXPERIMENTAL BEHAVIOUR TO COLLAPSE OF A 1:12 SCAL E PRESTRESSED CONCRETE BIFURCATED BRIDGE.
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- pp. 455–481
- Authors: MW PINKNEY; SH PERRY; P WALDRON
- Document Type: Research Article
- DOI: 10.1680/iicep.1985.834
- Proc. Instn Civ. Engrs, Part 2,1985,79, Sept., 4 5 5 4 8 1 PAPER 8900 STRUCTURAL ENGINEERING GROUP Elastic analysis and experimental behaviour to collapse of a 1 :12 scale prestressed concrete bifurcated bridge A companion paper describes the construction and prestressing of a large-scale, prestressed concrete spine beam, bifurcated bridge model. In this Paper the results of the testing, which included patch loads, distributed lane loads and an ultimate load test, are presented. All test results are described qualitatively and theaccuracy of the results is discussed...
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PROGRESSIVE GATE-MODELLING FPR STUDIES OF FLOW-INDUCED VIBRATION.
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- pp. 483–509
- Author: JD HARDWICK
- Document Type: Research Article
- DOI: 10.1680/iicep.1985.835
- Proc. Instn Ciu. Engrs, Part 2, 1985,79, Sept., 483-509 8901 PAPER ENGINEERING GROUP Progressive gate-modelling studies of for flow-induced vibration J. D. HARDWICK, PhD, DIG* The flow-induced vibration of 50 m span radial gates proposed for the Scheldt Barrier at Antwerp was investigated using a progressive modelling technique involving two, preliminary, part-span modelsbeforeconstruction of afinal,full-spanmodel.Variationsinthe design were explored in the preliminary stages, thus reducing the need to modify the large andexpensivefinalmodel. The prototype gates had an unusuallyheavy duty and were of vibrationindicated no threat to the designedwithoutseals butthepredictedlevels stability or operation of the gates...
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THE FINITE ELEMENT ANALYSIS OF ARCH DAMS IN WIDE VALLEYS INCLUDING THE EFFECT OF CRACK FORMATION AT THE CONCRETE-ROCK INTERFACE.
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- pp. 511–532
- Author: JPF O CONNOR
- Document Type: Research Article
- DOI: 10.1680/iicep.1985.836
- Proc. lnstn Ciu. Engrs, Part 2, 1985,79, Sept., 5 1 1-532 PAPER 8906 STRUCTURAL ENGINEERING GROUP The finite element analysis of arch dams in wide valleys including the effect of crack formation at the concreterock interface A method of analysing arch dams in wide valleys is presented which takes into account the formation of a crack at the concrete-rock interface. A 16 node isoparametric curved surface interface element is embedded in a three-dimensional finite element mesh. The interface elements are most commonly placed along the concreterock contact surface but can also be used in other locations, as desired...
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WEB POST STRENGTH IN CASTELLATED STEEL BEAMS.
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- pp. 533–557
- Authors: T OKUBO; DA NETHERCOT
- Document Type: Research Article
- DOI: 10.1680/iicep.1985.837
- Proc. Instn Civ. Engrs, Part 2,1985,79, Sept., 533-557 PAPER 8909 STRUCTURAL ENGINEERING GROUP Web post strength castellated steel beams in D. A. NETHERCOT, BSc, PhD, MIStructEt An experimental study is reported in which 16 castellated beam specimens of the standard British module have been subjected to locally applied compressive loading over a web post. Experimentalfailure loads were found to be relativelyinsensitive bothto cross-section geometry and to the exact way in which the load was introduced into the web post. The results have been used as the basis for a critical evaluation of a number of possible design approaches, which has shown that modified versions of accepted methods for determining the local web strength of solid web sections are not generally suitable for castellated beams...
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FLEXURAL SHEAR FAILURE OF REINFORCED CONCRETE SLAB BRIDGES.
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- pp. 559–583
- Author: RJ COPE
- Document Type: Research Article
- DOI: 10.1680/iicep.1985.838
- Proc. InstnCio. Engrs, Part 2, 1985,79, Sept., 559-583 PAPER 8934 STRUCTURAL ENGINEERING GROUP Flexural shear failure of reinforced concrete slab bridges R. J. COPE, BSc, PhD, MICE, MIStructE* Test results on shear failures of five models of skew reinforced concrete slab bridges are reported. Factors affecting shear failure and the interpretation of model results to full-sized structuresarediscussed.Currentdesignmethodsareassessedusingthetest data, and recommendations concerning future practice are made. Introduction Design of slab bridges against flexural shear failureis based on test data obtained mainlyfrombeams and one-way spanning slabs...
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A STUDY OF THE EARLY HYDRATION OF PORTLAND CEMENT.
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- pp. 585–604
- Authors: WJ MCCARTER; AB AFSHAR
- Document Type: Research Article
- DOI: 10.1680/iicep.1985.839
- Proc. Instn Ciu. Engrs, Part 2, 1985,79, Sept., 5 8 5 4 0 4 PAPER 8954 STRUCTURAL ENGINEERING GROUP A study of the early hydration of Portland cement W. J. McCARTER, BSc, PhD* A. B. AFSHAR, BSc, MSc A novel electrical response technique for monitoring cement hydration is presented. The response data can be used to monitor the chemical and structure-building processes associated with hydration and also in assessing the influence of, for example, additives, cement composition and environment on these processes...
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BURSTING STRESSES DUE TO PRESTRESSING TENDONS IN CURVED DUCTS. TECHNICAL NOTE.
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- pp. 605–615
- Author: A MCLEISH
- Document Type: Research Article
- DOI: 10.1680/iicep.1985.840
- Proc. instn Cio. Engrs, Part 2,1985,79, Sept., 605-615 TECHNICAL NOTE 441 STRUCTURAL ENGINEERING GROUP Bursting stresses due to prestressing tendons in curved ducts A. MCLEISH, BSc, PhD, MICE* Deflected prestressing tendons are commonly used in bridge slab construction. Whereas and the global benefits from using curved prestressing tendons can be evaluated without difliculty, the local effects adjacent to the duct are harderto quantify. The radial force due to a curved tendon induces bursting stresses in the concrete, a problem that is compounded when several tendons run parallel to each other...
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TECHNICAL NOTE. HYDRAULIC DESIGN OF ROOF GUTTERS.
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- pp. 767
- Authors: JN DUDER; RWP MAY; BS 6367
- Document Type: Research Article
- DOI: 10.1680/iicep.1985.773
- Proc. Instn Ciu. Engrs, Part 2, 1985,79, Dec., 767 DISCUSSION O N TECHNICAL NOTE 420 Hydraulic design of roof gutters R. W. P. May Mr J. N. Duder, Tonkin and Taylor Ltd, Auckland The best designed gutter is only as good as its outlet: and howeverwell designed that is, it can still get blocked under unusual circumstances. Designers should be reminded, therefore, to provide for emergency overflow in a location that will not unreasonably damage either the building its surrounds...
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ICE - Institution of Civil Engineers - Virtual Library

ICE Proceedings

Volume 79, Issue 3, September 1985