... previous suggestion in the correspondence on a Paper by Dr M. R. Home 1-that elastic analysis would at once indicate which joints would fail as plastic t J. Instn Civ. Engrs, vol. 35, p. 41 (Nov. 1950). FundamentalPropositions in the Plastic Theory of Structures. J. Instn Civ. Engrs, vol. 34, p. 174...

...A L L BAKER Synopsis The Paper presents a general plastic theory for the solution of statically indeterminate reinforced-concrete frameworks, and also for calculating the ultimate strength in bending of reinforced-concrete and pre-stressed-concrete beams, of both bonded and non-bonded types...

.... Concrete Publications Ltd. London, 1944. 5. A. L.L. Baker, Reinforced Concrete. Concrete Publications Ltd., London,1949. B. A. L. L. Baker, A plastic theory of design for ordinary reinforced and pre- stressed concrete including moment re-distribution in continuous members. Magazine of Concrete...

... that eventually large deformations will be built up, rendering the structure useless. This type of failure is distinct from the plastic collapse occurring under a single application of load which is usually considered as the basis of plastic design methods. Incremental collapse is discussed in the Paper...

..., that a skilled analyst may be able to reduce the labour involved to a considerable extent. The method is contrasted with the method which is used at present, in which the designer guesses the locations of the plastic hinges which form when the structure collapses, and then adjusts his guesses in a systematic...

...P S SYMONDS; B G NEAL Synopsis The Paper extends the plastic theory for plane frames of mild steel to cover the cases in which the detailed loading programmes of a set of independently variable loads are either wholly or partially unspecified and there is no restriction on the number of times each...

...R G BRAITHWAITE; D J DAVIES; A W HENDRY; S K GHASWALA; S MEHEW; G R BRUETON © 1950 Thomas Telford Ltd 1950 WELDED HIGHWAYS BRIDGES DESIGN METHODS PLASTIC ALUMINIUM ALLOYS WELDING LOADING BRIDGEWORKS STRESS CORRESPONDENCE ON WELDED HIGHWAY BRIDGES 387 CORRESPONDENCE...

... might have tobe increased in order to reduce the stress in a butt weld ; Mr Brueton had pointed out the comparison with riveted joints. Paper No. 5761 Fundamental Propositionsin the Plastic Theory of Structures by MICHAELREX HORNE, M.A., A.M.I.C.E. Correspondence Mr R.M.Haythornthwaiteconsidered...

...M R HORNE Synopsis According to the plastic theory, the collapse load of a ductile structure in the absence of instability due to axial stresses may be predicted by reference solely to the requirements of statical equilibrium. Since it is found unnecessary to consider the behaviour...

... on a structure during a high wind. The damage is expressed in terms of the permanent plastic deformation and, hence, wind loads suitable for use in ultimate (plastic) design methods may be derived. Although some numerical results are given, it is found that available data on wind velocities and pressures...

...J F BAKER; D LEE; B F NEAL © 1949 Thomas Telford Ltd 1949 RECENT INVESTIGATIONS BEHAVIOUR STEEL FRAMES PLASTIC RANGE LOADS 540 CORRESPONDENCEON A REVIEW OF RECENT INVESTIGATIONS CORRESPONDENCE ON PAPERSPUBLISHED IN JANUARY 1949 JOURNAL. Paper No. 5702. 11 A Review of Recent...

...J F BAKER; F A PARTRIDGE © Thomas Telford Ltd 1949 RECENT INVESTIGATIONS BEHAVIOUR STEEL FRAMES PLASTIC RANGE 110 CORRIGENDA. CORRIGENDA. December, 1948 Journal (Paper No. 5653-Boorman) :p. 103, equation ( 5 ) should read : p. 106, line 16 ; for Fig. 5 read Fig. 3. p. 107...

...J F BAKER © Thomas Telford Ltd 1949 INVESTIGATIONS BEHAVIOUR STEEL FRAMES PLASTIC RANGE THEORY BEAMS PORTAL DESIGN SINGLE BAY LOADS FACTORS CONTINUOUS STANCHIONS BENDING CURVATURE LATERAL INSTABILITY CAMBRIDGE UNIVERSITY 188 BAKER ON A REVIEW O F RECENT...

...J F BAKER; C LILLICRAP; F A PARTRIDGE; A C VIVIAN; H L COX; W A MITCHELL; E H BATEMAN; A J S PIPPARD; A W HENDRY © 1949 Thomas Telford Ltd 1949 INVESTIGATIONS BEHAVIOUR STEEL FRAMES PLASTIC RANGE PORTAL LOADS AIRCRAFT SHIPS DESIGN METHODS MOMENTS TESTS 224 BAKER...

... as fine as the one shown in Slide 29. STRESSEISN PLASTIMCATERIAL. I n one respect we have dehitely gone to windward : we can deal nowwith stresses in plastic material (Slide 30). Slides 31-33 showsome diagrams-as yet unpublished-relating to notched tensile specimens. I EANNG I N E E RAI NPGP R O A C...

...A C VIVIAN; W C UNWIN; E G IZOD © Thomas Telford and ICE 1947 PERCENTAGE ELONGATION STEEL BARS TENSILE TESTS NECKING DEFORMATION STANDARDS CURVES PLATES SHIPS BOILERS STRESS ULTIMATE PLASTIC CHARACTERISTICS TESTING 138 VIVIAN POENRCENTAEGLEONGATION OF STEEL. 2. In built...

... by mathematical treatment. The Paper gives a detailed description of the apparatus and technique employed for photo-elastic tcsting in the Engineering Department of Aberdeen University. I n addition, resuits of a number of cxperiments on the mechanical and optical properties of the plastic Cabalin , relevant t...

... . . . Bouncing-ball experiments .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. 487 493 .Tests in which the yield-point is passed . . . . . . . . . . . 496 Rate of strain . . . . . . . . . . . . . . . . . . . 499 Impact at very high speeds . . . . . . . . . . . . . . . 502 Stress waves ina plastic material...

... recent developments in detonators, he could only guess at what a gasless detonator was. The reference to itmade him feel the need for the glossary to which Mr. Cronin had referred. Under the heading of Plasticity the Author had said : I n industry the necessity for plasticity is limited. Industrial...

... to the use of rotary frequency-changers could be more than offsit if they were run at low load,.with a consequent drop in the efficiency of the machine. A thorough knowledge of the water to be ozonized was necessary before apparatus was designed for its treatment. Paper No. 5376. The Plastic Theories...