11—evaluation and repair of structures affected by alkali aggregate reactivity 11 1— introduction
Inspection Evaluation And Repair Of Steel structures Part 11 pot
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05/08/2014, 11:20
... arrested by drilling a hole at the crack tip For large cracks and/ or higher stress range, repair can be accomplished by removing the crack tip by drilling a hole and repairing the remaining length of ... fracture resistance and fatigue strength, bolted repairs are often preferable to welded repairs However, bolted repairs typically are more expensive and require more time to design and install Dimensional ... 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 that...
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Tài liệu Inspection, Evaluation and Repair of Steel Structures P2 ppt
Ngày tải lên :
19/01/2014, 23:20
... 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 ribs ... uncoped stiffeners and diaphragm web-to-girder welds (7) Previous cracks repaired by welding Figure 3-6 shows an example of cracks redeveloped at weld repairs (8) Locations of previous repairs or where ... determine the corrosivity of water Corrosivity of water can also be determined by correlation with pH and ion concentration levels (Pisigan and Singley 1985) 4-2 EM 111 0-2-6054 Dec 01 Figure 4-1...
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Tài liệu Inspection, Evaluation and Repair of Steel Structures P1 docx
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19/01/2014, 23:20
... 111 0-2-6054 EM 111 0-2-6054 December 2001 Engineering and Design INSPECTION, EVALUATION AND REPAIR OF HYDRAULIC STEEL STRUCTURES Purpose This manual describes the inspection, evaluation, and repair ... 1993, and ETL 111 0-2-351, 31 March 1994 CECW-ED Manual No 111 0-2-6054 DEPARTMENT OF THE ARMY U.S Army Corps of Engineers Washington, DC 20314-1000 EM 111 0-2-6054 December 2001 Engineering and ... fracture toughness, and Chapter describes repairs FOR THE COMMANDER: Appendix (See Table of Contents) ROBERT CREAR Colonel, Corps of Engineers Chief of Staff This manual supersedes ETL 111 0-2-346, 30...
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Inspection, Evaluation and Repair of Hydraulic Steel Structures: USACE Engineering Manual Guide Book on CD-ROM pdf
Ngày tải lên :
27/06/2014, 05:20
... 111 0-2-6054 EM 111 0-2-6054 December 2001 Engineering and Design INSPECTION, EVALUATION AND REPAIR OF HYDRAULIC STEEL STRUCTURES Purpose This manual describes the inspection, evaluation, and repair ... 1993, and ETL 111 0-2-351, 31 March 1994 CECW-ED Manual No 111 0-2-6054 DEPARTMENT OF THE ARMY U.S Army Corps of Engineers Washington, DC 20314-1000 EM 111 0-2-6054 December 2001 Engineering and ... fracture toughness, and Chapter describes repairs FOR THE COMMANDER: Appendix (See Table of Contents) ROBERT CREAR Colonel, Corps of Engineers Chief of Staff This manual supersedes ETL 111 0-2-346, 30...
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Inspection, Evaluation, and Repair of Hydraulic Steel Structures pptx
Ngày tải lên :
27/06/2014, 14:20
... DEPARTMENT OF THE ARMY U.S Army Corps of Engineers Washington, DC 20314-1000 Manual No 111 0-2-6054 EM 111 0-2-6054 December 2001 Engineering and Design INSPECTION, EVALUATION AND REPAIR OF HYDRAULIC ... fracture toughness, and Chapter describes repairs FOR THE COMMANDER: Appendix (See Table of Contents) ROBERT CREAR Colonel, Corps of Engineers Chief of Staff This manual supersedes ETL 111 0-2-346, 30 ... September 1993, and ETL 111 0-2-351, 31 March 1994 Simpo PDF Merge and Split Unregistered Version - http://www.simpopdf.com CECW-ED Manual No 111 0-2-6054 DEPARTMENT OF THE ARMY U.S Army Corps of Engineers...
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inspection evaluation and repair of hydraulic steel structures docx
Ngày tải lên :
27/06/2014, 17:20
... 111 0-2-6054 EM 111 0-2-6054 December 2001 Engineering and Design INSPECTION, EVALUATION AND REPAIR OF HYDRAULIC STEEL STRUCTURES Purpose This manual describes the inspection, evaluation, and repair ... 1993, and ETL 111 0-2-351, 31 March 1994 CECW-ED Manual No 111 0-2-6054 DEPARTMENT OF THE ARMY U.S Army Corps of Engineers Washington, DC 20314-1000 EM 111 0-2-6054 December 2001 Engineering and ... fracture toughness, and Chapter describes repairs FOR THE COMMANDER: Appendix (See Table of Contents) ROBERT CREAR Colonel, Corps of Engineers Chief of Staff This manual supersedes ETL 111 0-2-346, 30...
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inspection evaluation and repair of hydraulic steel structures 3 docx
Ngày tải lên :
27/06/2014, 17:20
... 111 0-2-6054 EM 111 0-2-6054 December 2001 Engineering and Design INSPECTION, EVALUATION AND REPAIR OF HYDRAULIC STEEL STRUCTURES Purpose This manual describes the inspection, evaluation, and repair ... 1993, and ETL 111 0-2-351, 31 March 1994 CECW-ED Manual No 111 0-2-6054 DEPARTMENT OF THE ARMY U.S Army Corps of Engineers Washington, DC 20314-1000 EM 111 0-2-6054 December 2001 Engineering and ... fracture toughness, and Chapter describes repairs FOR THE COMMANDER: Appendix (See Table of Contents) ROBERT CREAR Colonel, Corps of Engineers Chief of Staff This manual supersedes ETL 111 0-2-346, 30...
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Inspection Evaluation And Repair Of Steel structures Part 1 docx
Ngày tải lên :
05/08/2014, 11:20
... 111 0-2-6054 EM 111 0-2-6054 December 2001 Engineering and Design INSPECTION, EVALUATION AND REPAIR OF HYDRAULIC STEEL STRUCTURES Purpose This manual describes the inspection, evaluation, and repair ... 1993, and ETL 111 0-2-351, 31 March 1994 CECW-ED Manual No 111 0-2-6054 DEPARTMENT OF THE ARMY U.S Army Corps of Engineers Washington, DC 20314-1000 EM 111 0-2-6054 December 2001 Engineering and ... fracture toughness, and Chapter describes repairs FOR THE COMMANDER: Appendix (See Table of Contents) ROBERT CREAR Colonel, Corps of Engineers Chief of Staff This manual supersedes ETL 111 0-2-346, 30...
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Inspection Evaluation And Repair Of Steel structures Part 2 pot
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05/08/2014, 11:20
... cracking of a component The most important factors governing the fatigue life of structures are the severity of the stress concentration and the stress range of the cyclic loading The fatigue life of ... the last sheet of this table Taken from AASHTO 1996, Copyright 1996 by AASHTO, reproduced with permission 2-7 EM 111 0-2-6054 Dec 01 Table 2-1 (Continued) (Sheet of 4) 2-8 EM 111 0-2-6054 Dec 01 ... Dec 01 Table 2-1 (Continued) (Sheet of 4) 2-9 EM 111 0-2-6054 Dec 01 Table 2-1 (Concluded) (Sheet of 4) 2-10 EM 111 0-2-6054 Dec 01 (2) The American Institute of Steel Construction (AISC) has adopted...
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Inspection Evaluation And Repair Of Steel structures Part 3 potx
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05/08/2014, 11:20
... the lock chamber water level and to opening and closing of gates The number of load cycles is a function of the number of lockages that occurs at the lock The number of load cycles due to gate ... operation of the existing structure, and overstress conditions may 2-14 EM 111 0-2-6054 Dec 01 exist Current information, including modern welding practice and fatigue and fracture control in structures, ... establish allowable size and number of discontinuities for base metal used to fabricate hydraulic steel structures In addition, EM 111 0-2-2703 also recommends that the steel structures be welded...
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Inspection Evaluation And Repair Of Steel structures Part 4 docx
Ngày tải lên :
05/08/2014, 11:20
... 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 ribs ... uncoped stiffeners and diaphragm web-to-girder welds (7) Previous cracks repaired by welding Figure 3-6 shows an example of cracks redeveloped at weld repairs (8) Locations of previous repairs or where ... on a tainter gate 3 -11 EM 111 0-2-6054 Dec 01 Figure 3-5 Distortion-induced high-stress location Figure 3-6 Fatigue crack at weld repair on roller gate end shield 3-12 EM 111 0-2-6054 Dec 01 3-4...
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Inspection Evaluation And Repair Of Steel structures Part 5 pot
Ngày tải lên :
05/08/2014, 11:20
... EM 111 0-2-6054 Dec 01 Figure 3-9 Critical areas for lift gates 3-17 EM 111 0-2-6054 Dec 01 Figure 3-10 Critical areas for miter gates 3-18 EM 111 0-2-6054 Dec 01 Chapter Detailed Inspection 4-1 Introduction ... determine the corrosivity of water Corrosivity of water can also be determined by correlation with pH and ion concentration levels (Pisigan and Singley 1985) 4-2 EM 111 0-2-6054 Dec 01 Figure 4-1 ... components of the structure (5) The inspector should complete a report following the actual inspection The report should include the identification and location of inspected structures, date and time of...
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Inspection Evaluation And Repair Of Steel structures Part 6 docx
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05/08/2014, 11:20
... performance criteria and analytical tools are needed Loading and performance criteria for hydraulic steel structures are outlined in EM 111 0-2-2105, EM 111 0-22701, EM 111 0-2-2702, and EM 111 0-2-2703 Basic ... 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 for service of the ... effect of bead configuration, and macrodefects of welded joints The quality of welds can be evaluated as a function of ductility to resist cracking during bending The top and bottom surfaces of a...
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Inspection Evaluation And Repair Of Steel structures Part 7 docx
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05/08/2014, 11:20
... EM 111 0-2-6054 Dec 01 Figure 6-5 Interaction of coplanar discontinuities (Extracts from British Standards Institution 1980 Complete copies of the standard can be obtained by post from ... (Barsom and Rolfe 1987) Barsom and Rolfe and Tada, Paris, and Irwin (1985) contain compilations of solutions for a wide variety of configurations c After the stress-intensity factor is determined by ... depth, and g = function that describes effect of a/w on KI 6-10 EM 111 0-2-6054 Dec 01 Figure 6-14 Embedded elliptical or circular crack (Barsom and Rolfe 1987, p 47 Reprinted by permission of Prentice-Hall,...
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Inspection Evaluation And Repair Of Steel structures Part 8 ppt
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05/08/2014, 11:20
... Association of State Highway and Transportation Officials 1996; American Institute of Steel Construction 1994; EM 111 0-2-2105) (5) Integrate the crack growth rate expression (i.e., Equations 6-8 and ... growth behavior in steels and weld metals using fracture mechanics concepts as recommended by Barsom and Rolfe (1987) is as follows 6-17 EM 111 0-2-6054 Dec 01 (1) On the basis of the inspection data, ... used for conservative estimates of fatigue-crack growth rates in base metals, weld metals, and heat -affected zones 6-15 EM 111 0-2-6054 Dec 01 Figure 6-20 Values of constant C for different loading...
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Inspection Evaluation And Repair Of Steel structures Part 9 pot
Ngày tải lên :
05/08/2014, 11:20
... EM 111 0-2-6054 Dec 01 structure is framed similar to the standard tainter gate geometry as described by EM 111 0-2-2702 with a 0.95-cm (3/8-in.) skin plate, C12 × 25 vertical ribs, two W30 × 118 ... capacity of the buckled members or of the gate is not in jeopardy at this time 7-5 EM 111 0-2-6054 Dec 01 (b) The amount of water leakage from the side seals is considered tolerable and will have ... and geometry of detail are known and the stress level and material fracture toughness have been estimated, the crack can be evaluated for fracture by calculating the stress intensity factor and...
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Inspection Evaluation And Repair Of Steel structures Part 10 ppsx
Ngày tải lên :
05/08/2014, 11:20
... Hydraulic Steel Structures Steel standards for the period when many hydraulic steel structures were constructed are of interest from both a structural evaluation and a repair and maintenance standpoint ... 7-20 EM 111 0-2-6054 Dec 01 Figure 7 -11 Curves for fatigue life of a stiffening member with a surface crack (1 in = 2.54 cm; ksi = 6.89 MPa) 7-21 EM 111 0-2-6054 Dec 01 a Structural steel standards ... growth curve for a stress range of 124 MPa (18 ksi) is shown in Figure 7-11a The total remaining life and critical crack length are also shown in Figure 7-11b and c for stress ranges varying...
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Inspection Evaluation And Repair Of Steel structures Part 12 docx
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05/08/2014, 11:20
... the direction of the existing crack 8-16 EM 111 0-2-6054 Dec 01 Figure 8 -11 Trashrack repair details (1 in = 2.54 cm; ft = 0.3 m) (Continued) 8-17 EM 111 0-2-6054 Dec 01 Figure 8 -11 (Concluded) ... measurements have shown that out -of- plane displacement and rigidity of end connections may also impose flexure in the bracing members (Commander et al 1994) 8 -11 EM 111 0-2-6054 Dec 01 CRACK Figure ... 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...
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Inspection Evaluation And Repair Of Steel structures Part 13 docx
Ngày tải lên :
05/08/2014, 11:20
... Hydraulic Steel Structures EM 111 0-2-2105 Design of Hydraulic Steel Structures EM 111 0-2-2701 Vertical Lift Gates EM 111 0-2-2702 Design of Spillway Tainter Gates EM 111 0-2-2703 Lock Gates and Operating ... Publications ER 111 0-2-100 Periodic Inspection and Continuing Evaluation of Completed Civil Works Structures ER 111 0-2 -115 0 Engineering and Design for Civil Works Projects ER 111 0-2-8157 Responsibility ... 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 EM 111 0-2-6054 Dec 01 Appendix A References...
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