... microcracking as compared to fracture of concrete under incorporates the influence of range of loading For a zero static loading. 3,4 4Fatigue strength of concrete for a life of ten minimum stress ... guide for design for concrete structures subjected to fatigue loading However, this report does not contain the type of detailed design procedures s...
Ngày tải lên: 24/10/2014, 15:46
guide for evaluation of concrete structures prior to rehabilitation
... STRATIFICATION STRUCTURAL PERFORMACE UNIFORMITY OF CONCRETE 00 0 l 0 l 00 l l 364.1R-13 EVALUATION OF STRUCTURES PRIOR TO REHABILITATION Table 6.2 -Evaluation of properties of reinforcing steel PROPERTIES ... EVALUATION OF STRUCTURES PRIOR TO REHABlLlTATlON 437R B-14 SP-85 Strength Evaluation of Existing Concrete Buildings History of Concrete Rehabili...
Ngày tải lên: 24/10/2014, 21:59
Life cycle cost design of concrete structures
... based Design 1.3 Service Life of Concrete Structures 1.4 Life Cycle Cost Based Design for Concrete Structures 1.5 Scope of Work 1.6 Objectives CHAPTER TWO – LITERATURE REVIEW 2.1 2.2 2.3 Service Life ... magnitude of costs for any economic analysis 1.4 Life Cycle Cost Based Design for Concrete Structures From a structural design point of view, the m...
Ngày tải lên: 08/11/2015, 17:33
finite element analysis of fracture in concrete structures state of the art
... incorporate the model into the finite element analysis is by employing interface elements The first interface element was formulated by FINITE ELEMENT ANALYSIS OF FRACTURE IN CONCRETE STRUCTURES ... CHAPTER 1—INTRODUCTION In this report, the state -of- the- art in finite element modeling of concrete is viewed from a fracture mechanics perspec...
Ngày tải lên: 24/10/2014, 21:58
Báo cáo khoa học: "THE REPRESENTATION OF CONSTITUENT STRUCTURES FOR FINITE-STATE PARSING" pdf
... daughter of a particular constituent does not provide sufficient evidence for the identification of that constituent, a prefix may still be used if that constituent is the left sister of a constituent ... sufficient evidence for the identification of that constituent; e.g., if the leftmost daughter is either the specifier or the head of that constituent in the sense o...
Ngày tải lên: 08/03/2014, 18:20
control of cracking in concrete structures
... restraint needed for shrinkage-compensating concrete To take full advantage of the expansive potential of shrinkage-compensating concrete in minimizing or preventing shrinkage cracking of exposed concrete ... use of shrinkage-compensating concrete are contained in ACI 223R CHAPTER 4 CONTROL OF CRACKING IN FLEXURAL MEMBERS 4.1—Introduction The control of crack...
Ngày tải lên: 24/10/2014, 15:46
erosion of concrete in hydraulic structures
... detailing of the terminus of the stilling basin and the exit channel, so as to maximize flushing of the stilling basin and to minimize chances of debris from the exit channel entering the basin Maintain ... observance of any erosion of concrete should be included in these inspections The frequency of inspections is usually a function of use and evidence of distress The...
Ngày tải lên: 24/10/2014, 15:46
prediction of creep, shrinkage, and temperature effects in concrete structures
... Z.P., “Theory of Creep, and Shrinkage in Concrete Structures: A Precis of Recent Developments,” by D.E Branson) Prediction of Creep, Shrinkage and Temperature Effects in Concrete Structures, ” ... Report, Prediction of Creep, Shrinkage, and Experimental Studies of Time-Dependent Deflections of Temperature Effects in Concrete Structures, ” Pri...
Ngày tải lên: 24/10/2014, 16:03
recommendations for design of beam-column connections in monolithic reinforced concrete structures
... for Deformed Bars in Tension 352 Recommendations for Design of Slab-Column Connections in Monolithic Reinforced Concrete Structures ASTM A 706 BEAM-COLUMN CONNECTIONS IN MONOLITHIC CONCRETE STRUCTURES ... γ-values shown in Table assume that extensive inclined cracking would occur in the joint Tests indicate that initial inclined cracking in well-confi...
Ngày tải lên: 24/10/2014, 16:04
control of deflection in concrete structures
... strain in the extreme compression fiber of a concrete element (0.003 in. /in. ) strain at first cracking load strain in prestressed reinforcement at ultimate flexure unit shrinkage strain in concrete ... nonprestressed reinforcement overall thickness of member depth of flange moment of inertia of cracked section transformed to concrete effective moment of inertia for...
Ngày tải lên: 24/10/2014, 17:25
control of deflection in concrete structuresstate-of-the-art report on fiber reinforced plastic (frp) reinforceme
... to unbonded FRP tendons 4.5.2 Deflections—Deflections of an uncracked concrete section reinforced with an unbonded FRP tendons may be computed using the guidelines of ACI 318 Once the section cracks, ... composite sections with in (25 mm) of concrete deck, failure occurred as a result of combined concrete spalling in the compression zone and shear between concrete inside...
Ngày tải lên: 24/10/2014, 17:25
design and construction of circular prestressed concrete structures with circumferential tendons
... 1.2—Objective The objective of this report is to provide guidance in the design and construction of circular prestressed concrete structures circumferentially prestressed using tendons 1.3—Scope The ... facilitate placement of the concrete without segregation (a) 10 in for cast-in-place concrete walls with internal circumferential tendons, with or without ve...
Ngày tải lên: 24/10/2014, 17:26
design and construction of circular wire- and strand-wrapped prestressed concrete structures
... reinforced concrete and prestressed concrete design and construction given in ACI 318-99, ACI 350-01, and ACI 301 Design and construction recommendations cover the following elements or components of circularwrapped ... from the restraint of deflections, rotations, and deformations that DESIGN AND CONSTRUCTION OF PRESTRESSED CONCRETE STRUCTURES 372R-7...
Ngày tải lên: 24/10/2014, 17:26