5—design of structural lightweightaggregate concrete p 213r 24
recent approaches to shear design of structural concrete
... specified compressive strength of concrete (MPa) √ fc′ = square root of specified compressive strength of concrete (MPa) fpc = compressive stress in concrete (after allowance for all prestress losses) ... Collins, M P. ;, 1990, “Strutand-Tie Models for the Design of Pile Caps,” ACI Structural Journal, V 87, No 1, Jan.-Feb., pp 81-92 RECENT APPROACHES TO SHEAR DESIGN OF STRUCTURAL CONCRETE Adebar, P. , ... this complexity and the importance of developing physical models to explain this behavior The existing mechanical or physical models are presented in Chapter Despite differences in the approaches,...
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nano and microstructural design of advanced materials, 2003, p.317
... based on Prof Thomas’ patents on nano microcomposite steels Professor Thomas has also played an important role in promoting the profession He was president of the Electron Microscopy Society of the ... applied for ISBN: 0-08-044373-7 @ The paper used in this publication meets the requirements of ANSUNIS0 239.48-1992 (Permanence of Paper) Printed in The Netherlands Preface The importance of ... highly coherent p- like monoclinic GP-I zone Thepoorly-developed Q particles Figure is a typical high-resolution image of another type of poorly-developed precipitates with a lath shape Owing to the...
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seismic design of liquid-containing concrete structures
... tank roof, plus superimposed load, plus applicable portion of snow load considered as dead load, lb (kN) mass of the tank wall (shell), lb (kN) in a rectangular tank, the mass of one wall perpendicular ... foundation, or a structural slab supported on piles The tank roof may be a free-span dome or column-supported flat slab; or the tank may be open-topped Rectangular tanks Type 1.1 Fixed base Type 1.2 Hinged ... -24gt w E c (4-17) where γ L DH L [ T v = π - in SI system] 2gt w E c 4.2—Application of site-specific response spectra R4.2—Application of site-specific response spectra 4.2.1—Site-specific...
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Flexural strength ductility performance of flanged beam sections cast of high strength concrete (p 29 43)
... The purpose of expressing the flexural strength in terms of Mp/BD2 is to render it independent of the actual dimensions and allow comparison of the flexural strength– ductility performances of ... compression flange depth of compression reinforcement depth of neutral axis Young’s modulus of steel reinforcement in situ uniaxial compressive strength of concrete yield strengths of compression ... then decrease to 50% of the peak moment Details of the analysis procedure have been presented in Ho et al (2003) and Pam et al (2001) The method of analysis previously applied to solid rectangular...
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Tiêu chuẩn Châu Âu EC2 phần 1.2 (Eurocode2 BS EN1992 1 2 e 2004 Design of concrete structures part 1.2: Structural fire design)
... 1992-1-2:2004 (E) Application of design procedures is illustrated in Figure 0.1 The prescriptive approach and the performance-based approach are identified The prescriptive approach uses nominal ... relationship of steel is truncated to provide a yield plateau 1.5.4 Part of structure: isolated part of an entire structure with appropriate support and boundary conditions 1.5.5 Protective layers: ... quenched and tempered (bars) prestressing steel at elevated temperatures are given by fpy,θ / (βfpk), fpp,θ / (β fpk), Ep,θ /Ep, εpt,θ [-],εpu,θ [-] The value of β is given by the choice of Class A...
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Tiêu chuẩn Châu Âu EC3: Kết cấu thép phần 1.5: Cấu kiện tấm (Eurocode3 BS EN1993 1 5 e 2006 Design of steel structures part 1.5: Plated structural elements)
... equivalent plate is defined as: p = with β A ,c f y σ cr , p β A,c = where Ac (4.7) Ac ,eff ,loc Ac is the gross area of the compression zone of the stiffened plate except the parts of subpanels supported ... mentioned in A.2.1(4) should be applied only to the area of the column No reduction need be applied to other compressed parts of the plate, except for checking buckling of subpanels (6) As an alternative ... are plated structural components subject to in-plane loads as in tanks and silos The effects of out -of- plane loading are outside the scope of this document NOTE 1: The rules in this part complement...
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Real-Time Digital Signal Processing - Chapter 5: Design and Implementation of FIR Filters
... measurement of a lowpass filter As shown in Figure 5.2, the magnitude of passband defined by mates unity with an error of Ædp That is, À dp jH
!j dp , ! !p : ! !p approxi
5:1:4 The passband ripple, ... does not depend on the input applied after n0 It depends only on the input applied at and before n0 On the contrary, the output of a non-causal filter depends not only on the past input, but ... filter outputs due to the application of the inputs x1
n and x2
n, respectively The important property of linearity is that in the computation of y(n) due to x(n), we may decompose x(n) into...
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Tài liệu The Design of Prestressed Concrete Bridges ppt
... of bearings for curved decks Temporary fixity of deck built span-by-span Use of shock absorbers Typical example of the use of rubber bearings Development of twin leaf piers Buckling of split piers ... steel Dispersal of prestress The principle of parasitic moments Reactions due to prestress parasitic moments Concordant cables Cable transformations Typical cable zone Span arrangement of sample bridge ... arrangement of box deck option GSZ Pearl River Delta Viaduct, PRC: production line for prefabrication of one box per day GSZ Pearl River Delta Viaduct, PRC: operation of launching gantry GSZ Pearl...
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Structural design of steel work
... manufacture and types of steel Structural design Fabrication of steelwork 1 12 CHAPTER Mechanical Properties of Structural Steel 2.1 2.2 2.3 2.4 2.5 2.6 2.7 2.8 2.9 2.10 Variation of material properties ... Full plastic moment capacity can be developed but local buckling may prevent development of a plastic hinge with sufficient rotation capacity to permit plastic design • Class 3: High values of ... manufacturing process are dependent on the degree of control Variations in material properties must be recognized and incorporated into the design process The material properties that are of most importance...
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Báo cáo Y học: Monitoring the structural consequences of Phe12 fi D-Phe and Leu15 fi Aib substitution in human/rat corticotropin releasing hormone Implications for design of CRH antagonists pdf
... transfer spectroscopy J Magn Reson 65, 355–360 Marion, D & Wuthrich, K (1983) Application of phase sensitive ¨ two-dimensional correlated spectroscopy (COSY) for measurements of 1H-1H spin-spin coupling ... of the peptide structure and provide the elements of the secondary structure, as well as other statistical parameters RESULTS NMR spectra–proton assignment The spin patterns of 39 out of 41 residues ... residue possesses two diastereotopic methyl groups, with the pro-R methyl replacing the Ha proton at Ca carbon of an L-valine and the pro-S group corresponding to the side chain (Cb of an L-valine)...
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Báo cáo khoa học: The structural comparison of the bacterial PepX and human DPP-IV reveals sites for the design of inhibitors of PepX activity pot
... compared, the structures of PepX and DPP-IV not show any homology except for their catalytic portion, where it is possible to superimpose only 140 Ca atoms (around 18% of PepX and DPP-IV Ca positions) ... sites of the two X-PDAP enzymes, the bacterial PepX (green) and the human DPP-IV (orange) (B) Superposition of the active and specificity sites of the S9 enzymes porcine POP (cyan) and human DPP-IV ... inhibition of DPP-IV [3], the superimposition involves a phenylalanine, Phe393, in the same region of PepX (Exo2 subsite) As in the case of Glu205 and Glu206 in DPP-IV, their homologues in PepX (Phe393...
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Principles of structural design
... for plastic analysis p 3.76 (E=Fy) for nonseismic application p 3.05 (E=Fy) for seismic application For Pu=fbPy 0.125: p 3.76(1 À 2.75Pu=fbPy) (E=Fy) for nonseismic application p 3.05(1 À 1.54Pu=fbPy) ... 1.54Pu=fbPy) (E=Fy) for seismic application p 1.40= (E=Fy) p 5.70(1 À 0.74Pu=fbPy) (E=Fy) For Pu=fbPy > 0.125: p 1.12(2.33 À Pu=fbPy) (E=Fy) ! p 1.49 (E=Fy) fb ¼ 0.90 Pu ¼ factored axial force Py ¼ ... Behavior of Structural Steel Types of Steel HighPerformance Steel Fireproofing of Steel Corrosion Protection of Steel Structural Steel Shapes Structural Fasteners Weldability of Steel...
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fabrication and design of resonant microdevices. micro and nanotechnologies, 2008, p.198
... amounts of specific impurities to them Doping is the process of adding such impurities known as dopants, to the bulk or a film of the semiconducting material The concept of doping is explained ... titanate or PZT (Pb Zrx Ti1−x O3 ) is another material with piezoelectric properties PZT films have been mostly used for actuation purposes because of the large coupling factor between the applied electric ... mechanical deformation of the PZT films [19] However, the piezoelectric properties of PZT have also been employed for power generation and sensory applications [20–22] Other piezoelectric materials...
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