FEM of concrete structures strengthened with FRP laminates
Báo cáo khoa học: "Dose volume histogram analysis of normal structures associated with accelerated partial breast irradiation delivered by high dose rate brachytherapy and comparison with whole breast external beam radiotherapy fields" potx
... received by 20 cc and 30 cc of the whole heart volume (the D20 and D30 respectively) was measured The volume of the heart receiving a dose of Gy and higher, 10 Gy and higher and 20 Gy and higher ... lower volume of the heart and lung to higher doses than EBRT The volume of lung irradiated to lower doses was similar with both techniques However, the vol...
Ngày tải lên: 09/08/2014, 09:22
considerations for design of concrete structures subjected to fatigue loading
... 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
LEAN DUPLEX STAINLESS STEELS—THE ROLE OF MOLYBDENUM IN PITTING CORROSION OF CONCRETE REINFORCEMENT STUDIED WITH INDUSTRIAL AND LABORATORY CASTINGS
... low alloy duplex stainless steels (DSS) thường gọi thép lean duplex steel, làm tăng thêm tính đa dạng thép sử dụng gia cố bê tông Những loại DSS với thành phần Ni Mo thấp, tác động kinh tế thấp ... ăn mòn rỗ nhiều báo gần đây, Alvarez đồng nghiên cứu hoạt động ăn mòn hai loại tôn sóng lean duplex stainless steels (SAF 2001 2304) Thử nghiệm 2.1 Vật liệu Bốn DSS nạc khác với hai n...
Ngày tải lên: 04/08/2015, 11:32
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
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
guide for the design and construction of concrete reinforced with frp bars
... 8—FLEXURE The design of FRP reinforced concrete members for flexure is analogous to the design of steel -reinforced concrete members Experimental data on concrete members reinforced with FRP bars show ... in addition to the steel reinforced cross section: two sections reinforced with GFRP bars and one reinforced with CFRP bars For the sec...
Ngày tải lên: 24/10/2014, 21:59
guide for the design and construction of externally bonded frp systems for strengthening concrete structures
... can be computed by taking the first moment of the areas of the transformed section The transformed area of the FRP may DESIGN AND CONSTRUCTION OF EXTERNALLY BONDED FRP SYSTEMS 440.2R-25 Fig 10.1—Typical ... as to develop the strength of the FRP system The development length is a function of the strength of the substrate and the rigidity...
Ngày tải lên: 24/10/2014, 21:59
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