Inspection Evaluation And Repair Of Steel structures Part 3 potx

... paragraphs 3- 3 and 3- 5, respectively, to assist the inspector during the preinspection. (3) Review of previous inspection reports and operations records will aid in defining occurrence of unusual ... reduces the torsional stability of miter gates during opening and closing. EM 1110-2-6054 1 Dec 01 3- 1 Chapter 3 Periodic Inspection 3- 1. Purpose of...

Ngày tải lên: 05/08/2014, 11:20

... Operation and Maintenance 2-6 2-15 Unforeseen Loading 2-7 2-16 Chapter 3 Periodic Inspection Purpose of Inspection 3- 1 3- 1 Inspection Procedures 3- 2 3- 1 Critical Members and Connections 3- 3 3- 2 ... 3- 2 Visual Inspection 3- 4 3- 13 Critical Area Checklist 3- 5 3- 13 Inspection Intervals 3- 6 3- 14 Chapter 4 Detailed Inspection Introducti...

Ngày tải lên: 05/08/2014, 11:20

... toughness of steel is generally a function of chemical composition, thermomechanical history, and microstructure. Chemical composition affects the toughness of a steel, since the addition of solute ... especially true of welds on riveted structures, since the structural steels typically used in older structures are not characterized as steels for welding. A discussion of...

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... oxidation) and the normal waterline (wetting and drying promotes corrosion). EM 1110-2-6054 1 Dec 01 3- 13 3- 4. Visual Inspection a. Visual inspection is the primary inspection method and ... according to paragraph 3- 3. A visual inspection is hands-on and requires careful and close examination. The inspector should look closely at the members and connecti...

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... 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 ... results of NDT. (c) NDT Level III: An NDT Level III individual shall be capable of establishing techniques and procedures; interpreting codes, standards, and...

Ngày tải lên: 05/08/2014, 11:20

... Behavior of Steel Materials a. The operating service temperature of a steel structure has a significant effect on the fracture behavior of the steel. For low- and intermediate-strength steels, ... Structural Evaluation 6-1. Purpose of Evaluation a. Structural evaluation is the process of determining the capability of a structure to perform its intended f...

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... of σ and a. Stress-intensity factors for various types of geometries can be calculated using the information included in Figures 6-8 through 6-16 (Barsom and Rolfe 1987). Barsom and Rolfe and ... the distance between the edge of component and edge of crack in the through-thickness direction Figure 6-4. Resolution of a discontinuity (after British Standards Insti...

Ngày tải lên: 05/08/2014, 11:20

... units, da/dN = 3. 6 × 10 -10 (∆K I ) 3 where a = in. and ∆K I = ksi- .in ) (2) Martensitic steels. ASTM A514/A514M and ASTM A517/517M steels are martensitic steels: da/dN = 1 .35 × 10 -7 ... src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAkIAAAGfCAIAAAA8jSo7AAAACXBIWXMAABYlAAAWJQFJUiTwAAAgAElEQVR42u3dWZajurIAUKhV8zIemWFkNiPjfeiWno5ojDvavT9qZTmdaScGhSLUUBQAsFtlURRd1zkQAOw...

Ngày tải lên: 05/08/2014, 11:20

... Because of the history of problems at this site, a thorough visual inspection was made previously on several gates. (2) Inspection. An in-depth inspection was made of the gate with particular ... fracture toughness. A review of the hypothetical design documents indicated that the gate had been fabricated from A36 steel. Since K Ic testing (ASTM E399) of mild steels at re...

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... src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAvkAAATaCAIAAABHNu6NAAAACXBIWXMAABYlAAAWJQFJUiTwAAAgAElEQVR42u3dfaxkZWH48ec012DcKiJeJHW1u8US3PCyTdEaVjszBWkatFBeQsXGxKZYW42mtk0a+8ecwaSNSWsjJtqmSf/AIhQDRMoWtl32ngEuSiqlhS19C+xCl/ByacSVNWzYZn5/PN3nd5y5e3fuvXPnzjzz+fxBLrP3ZebcuXO+85znPKfo9XqBjXHaaae9/PLLY/txF1100eLios0OAHVzNsHGefnllw8cODC2H7dlyxbbHAD6FMZ1NsixY8de97rX2bwAsLl+zCbYIIcOHXrzm99sOwCA...

Ngày tải lên: 05/08/2014, 11:20