11—evaluation and repair of structures affected by alkali aggregate reactivity p 221 1r 25
Inspection Evaluation And Repair Of Steel structures Part 11 pot
... corrosion or cracking problems (see paragraph 8-2a and paragraph 8-3) Repair of corroded areas is discussed in paragraph 8-2b, repair of cracks is discussed in paragraph 8-4, and rivet replacement is ... depths that exceed the penetration capability of GTA remelting and the effectiveness of peening cannot be repaired by these procedures Such cracks can be repaired by installing bolted splice plates ... applied to repair plates or components must be compatible with the protective system of adjacent steel EM 1110-2-3400, CWGS 09940 and CWGS 05036 provide detailed information on selection, application,...
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Tài liệu Inspection, Evaluation and Repair of Steel Structures P2 ppt
... up and calibrate equipment and to interpret and evaluate results with respect to applicable codes, standards, and specifications The NDT Level II individual shall be able to organize and report ... inspected structures, date and time of inspection, type of inspection, inspection procedure, inspection equipment, inspector identity and qualifications, and a record of discontinuities detected that ... reliable when pitting corrosion is prevalent, because the size and depth of the pitting impair the output signal of the transducer d Inspection for plastically deformed members When plastically...
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Tài liệu Inspection, Evaluation and Repair of Steel Structures P1 docx
... Engineering and Design INSPECTION, EVALUATION AND REPAIR OF HYDRAULIC STEEL STRUCTURES Purpose This manual describes the inspection, evaluation, and repair of hydraulic steel structures, including preinspection ... various types of repair are discussed Applicability This manual applies to all USACE commands having responsibilities for the design of civil works projects Distribution Statement Approved for public ... evaluation of the capability of a structure to perform its intended function Chapter discusses the determination of fracture toughness, and Chapter describes repairs FOR THE COMMANDER: Appendix (See...
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Inspection, Evaluation and Repair of Hydraulic Steel Structures: USACE Engineering Manual Guide Book on CD-ROM pdf
... Engineering and Design INSPECTION, EVALUATION AND REPAIR OF HYDRAULIC STEEL STRUCTURES Purpose This manual describes the inspection, evaluation, and repair of hydraulic steel structures, including preinspection ... various types of repair are discussed Applicability This manual applies to all USACE commands having responsibilities for the design of civil works projects Distribution Statement Approved for public ... up and calibrate equipment and to interpret and evaluate results with respect to applicable codes, standards, and specifications The NDT Level II individual shall be able to organize and report...
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Inspection, Evaluation, and Repair of Hydraulic Steel Structures pptx
... Simpo PDF Merge and Split Unregistered Version - http://www.simpopdf.com Dec 01 Subject Paragraph Page Chapter Material and Weld Testing Purpose of Testing 5-1 Selection of Samples ... Engineering and Design INSPECTION, EVALUATION AND REPAIR OF HYDRAULIC STEEL STRUCTURES Purpose This manual describes the inspection, evaluation, and repair of hydraulic steel structures, including preinspection ... various types of repair are discussed Applicability This manual applies to all USACE commands having responsibilities for the design of civil works projects Distribution Statement Approved for public...
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inspection evaluation and repair of hydraulic steel structures docx
... Engineering and Design INSPECTION, EVALUATION AND REPAIR OF HYDRAULIC STEEL STRUCTURES Purpose This manual describes the inspection, evaluation, and repair of hydraulic steel structures, including preinspection ... various types of repair are discussed Applicability This manual applies to all USACE commands having responsibilities for the design of civil works projects Distribution Statement Approved for public ... up and calibrate equipment and to interpret and evaluate results with respect to applicable codes, standards, and specifications The NDT Level II individual shall be able to organize and report...
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inspection evaluation and repair of hydraulic steel structures 3 docx
... Engineering and Design INSPECTION, EVALUATION AND REPAIR OF HYDRAULIC STEEL STRUCTURES Purpose This manual describes the inspection, evaluation, and repair of hydraulic steel structures, including preinspection ... various types of repair are discussed Applicability This manual applies to all USACE commands having responsibilities for the design of civil works projects Distribution Statement Approved for public ... up and calibrate equipment and to interpret and evaluate results with respect to applicable codes, standards, and specifications The NDT Level II individual shall be able to organize and report...
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Inspection Evaluation And Repair Of Steel structures Part 1 docx
... Engineering and Design INSPECTION, EVALUATION AND REPAIR OF HYDRAULIC STEEL STRUCTURES Purpose This manual describes the inspection, evaluation, and repair of hydraulic steel structures, including preinspection ... various types of repair are discussed Applicability This manual applies to all USACE commands having responsibilities for the design of civil works projects Distribution Statement Approved for public ... evaluation of the capability of a structure to perform its intended function Chapter discusses the determination of fracture toughness, and Chapter describes repairs FOR THE COMMANDER: Appendix (See...
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Inspection Evaluation And Repair Of Steel structures Part 2 pot
... than a thin plate Rapid cooling of the weld material and HAZ promotes the formation of martensite, which is a brittle phase of steel Preheat and postheat requirements have been adopted (American ... contributes to the susceptibility of cracking by promoting plane strain behavior Weldments involving thick plates are particularly more susceptible to cracking than those of thin plates In addition ... crack-tip plastic deformation under slow loading conditions at normal service temperatures Consequently, the LEFM approach is invalidated by the formation of large plastic zones and elastic-plastic...
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Inspection Evaluation And Repair Of Steel structures Part 3 potx
... fabrication and after the thick assemblies are welded and placed into service 2-6 Operation and Maintenance Proper operation and maintenance of hydraulic steel structures are necessary to prevent ... should be performed during the periodic inspection 3-2 Inspection Procedures The following four primary steps are considered necessary to perform a periodic inspection adequately: preinspection ... inspection The procedure for identifying critical areas and a checklist of locations (both specific and general) that are susceptible to fracture and corrosion are presented in paragraphs 3-3 and...
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Inspection Evaluation And Repair Of Steel structures Part 4 docx
... occur at support locations on all structures (i.e., trunnion assembly of gates and valves, end posts of lift gates, and end disks of roller gates), lifting connections, and areas where skin plate ... checklist should be developed prior to inspection as part of the preinspection assessment discussed in paragraph 3-2 Critical areas are likely common for a given type of hydraulic steel structure; ... construction, and are fracture critical (6) Intersecting welds These occur at uncoped stiffeners and diaphragm web-to-girder welds (7) Previous cracks repaired by welding Figure 3-6 shows an example of...
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Inspection Evaluation And Repair Of Steel structures Part 5 pot
... up and calibrate equipment and to interpret and evaluate results with respect to applicable codes, standards, and specifications The NDT Level II individual shall be able to organize and report ... inspected structures, date and time of inspection, type of inspection, inspection procedure, inspection equipment, inspector identity and qualifications, and a record of discontinuities detected that ... reliable when pitting corrosion is prevalent, because the size and depth of the pitting impair the output signal of the transducer d Inspection for plastically deformed members When plastically...
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Inspection Evaluation And Repair Of Steel structures Part 6 docx
... future inspections, any repair and maintenance procedures, and the urgency of these tasks The engineering decision on appropriate repair or planned maintenance is based on the concept of fitness ... appearance of the fractured surface The fracture appearance can be quantified by measuring the length and width of the cleavage portion of the fracture surface or comparing the appearance of ... described by ASTM E23 When specified, the surface finish of the V-notch of the Charpy impact specimen is 0.5 µm (20 µin.), or less The testing machine is a pendulum type of rigid construction and of...
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Inspection Evaluation And Repair Of Steel structures Part 7 docx
... (Barsom and Rolfe 1987, p 40 Reprinted by permission of PrenticeHall, Inc., Englewood Cliffs, NJ.) Figure 6-8 Through-thickness crack (Barsom and Rolfe 1987, p 39 Reprinted by permission of Prentice-Hall, ... (Barsom and Rolfe 1987, p 40 Reprinted by permission of Prentice-Hall, Inc., Englewood Cliffs, NJ.) Figure 6-11 Cracks growing from round holes (Barsom and Rolfe 1987, p 42 Reprinted by permission of ... 1987, p 47 Reprinted by permission of Prentice-Hall, Inc., Englewood Cliffs, NJ.) 6-11 EM 1110-2-6054 Dec 01 Figure 6-15 Surface crack (Barsom and Rolfe 1987, p 48 Reprinted by permission of Prentice-Hall,...
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Inspection Evaluation And Repair Of Steel structures Part 8 ppt
... more permanent solution Repair procedures are discussed in Chapter 8, and recommended inspection intervals may be computed using fatigue principles as described in paragraph 6-11 The inspection ... severe operations occur (e.g., persistent vibrations), it may be appropriate to repair and/ or recommend a shorter inspection interval to ensure the structural and operational integrity of the ... dimensions of a discontinuity and the parameter ā for embedded discontinuities (Extracts from British Standards Institution 1980 Complete copies of the standard can be obtained by post from BSI Publications,...
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Inspection Evaluation And Repair Of Steel structures Part 9 pot
... This indicates that an immediate repair plan should be developed and implemented If the repair will be costly and/ or substantially affect the function of the project, a more accurate analysis ... would consist of three steps: • Minimize the occurrence of gate vibrations by operating outside the range causing vibration • Reduce the inspection interval to approximately year and inspect a greater ... and then reopened approximately 3.0 cm (0.1 ft) when vibration began By rough measurement, the vibration frequency was estimated at 5-10 Hz The amplitude of vibration was maximum at midspan of...
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Inspection Evaluation And Repair Of Steel structures Part 10 ppsx
... first example case was developed The fracture and fatigue analysis of this example consists of three propagation steps (1) The first step is to analyze the crack propagation of a hemispheric surface ... fracture resistance, crack propagation rate, and stability of properties with seasonal temperature changes are considered important parameters The weldability of steels is also of interest since welding ... hydraulic steel structures were constructed are of interest from both a structural evaluation and a repair and maintenance standpoint In a structural evaluation, the characteristics of corrosion...
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Inspection Evaluation And Repair Of Steel structures Part 12 docx
... have been improved by grinding the weld profile smooth, or by retrofitting the welds by peening or GTA remelting procedures A similar modification was undertaken on an extensive retrofit of the Yellow ... situation exists depending on the thickness of joined elements (With overlapping welds and poor weld profiles, the strength is likely less than that of a Category E detail.) (3) Repair alternatives ... flexure The prior repair, which consisted of drilling a hole at the end of the crack, served to arrest the crack temporarily However, since the out -of- plane displacement is not restrained and the...
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Inspection Evaluation And Repair Of Steel structures Part 13 docx
... Quality of Industrial Radiographic Film Processing,” Philadelphia, PA ASTM E1 025 American Society for Testing and Materials “Practice for Design, Manufacture, and Material Grouping Classification of ... Transportation 1988 Pennsylvania Department of Transportation 1988 “Guidelines for Fatigue and Fracture Safety Inspection of Bridges,” Commonwealth of Pennsylvania, Department of Transportation, Bridge ... rigid This may improve the vibration problem (similar to the discussion of repair of the trashrack bars in paragraph 8-6e) Figure 8-18 Bolted tee connection retrofit of fractured hand rail 8-23...
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