Inspection, Evaluation and Repair of Steel Structures Part 4 ppsx

... with the radiation beam, and accessibility to both sides of the parts to be inspected is required. EM 1110-2-60 54 1 Dec 01 4- 4 Figure 4- 2. Corrosion of rivet heads (2) Ultrasonic ... inspection of welds. The most commonly used frequencies are between 1 and 5 MHz, with sound beams at angles of 0, 45 , 60, and 70 degrees. During application of the m...

Ngày tải lên: 11/08/2014, 09:20

... 2.6 1 .4 0 .49 152 (22) 24 12.0 5.7 4. 3 1.9 1.0 0.37 165 ( 24) 18 8.8 4. 4 3.3 1.5 0.79 0.28 179 (26) 14 6.9 3.5 ... inspection of hydraulic steel structures, if necessary. These methods, discussed in Chapter 4, include dye penetrant, magnetic particle, or eddy-current methods for inspection of...

Ngày tải lên: 05/08/2014, 11:20

... src="data:image/png;base 64, iVBORw0KGgoAAAANSUhEUgAAAvkAAATaCAIAAABHNu6NAAAACXBIWXMAABYlAAAWJQFJUiTwAAAgAElEQVR42u3dfaxkZWH48ec012DcKiJeJHW1u8US3PCyTdEaVjszBWkatFBeQsXGxKZYW42mtk0a+8ecwaSNSWsjJtqmSf/AIhQDRMoWtl32ngEuSiqlhS19C+xCl/ByacSVNWzYZn5/PN3nd5y5e3fuvXPnzjzz+fxBLrP3ZebcuXO+85znPKfo9XqBjXHaaae9/PLLY/txF1100eLios0OAHVzNsHGefnllw8cODC2H7dlyxbbHAD6FMZ1NsixY8de97rX2bwAsLl+zCbYIIcOHXrzm99sOw...

Ngày tải lên: 05/08/2014, 11:20

... but some 1-1 US Army Corps of Engineers® ENGINEERING AND DESIGN Inspection, Evaluation, and Repair of Hydraulic Steel Structures EM 1110-2-60 54 1 December 2001 ... 3 -4 3-13 Critical Area Checklist 3-5 3-13 Inspection Intervals 3-6 3- 14 Chapter 4 Detailed Inspection Introduction 4- 1 4- 1 Purpose of Inspection 4- 2 4- 1 Inspe...

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...

Ngày tải lên: 05/08/2014, 11:20

... structural evaluation is included and the severity of the condition can be quantitatively compared with previous and future observations. c. Evaluation. Evaluation of the effects of existing ... flange of a built-up girder (Figure 3-1). Evaluation of girder flexure includes the longitudinal web-to-flange weld, the attachment of the welded stiffener to the girder,...

Ngày tải lên: 05/08/2014, 11:20

... with the radiation beam, and accessibility to both sides of the parts to be inspected is required. EM 1110-2-60 54 1 Dec 01 4- 1 Chapter 4 Detailed Inspection 4- 1. Introduction This ... results of NDT. (c) NDT Level III: An NDT Level III individual shall be capable of establishing techniques and procedures; interpreting codes, standards, and procedures;...

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, ... inspection of welds. The most commonly used frequencies are between 1 and 5 MHz, with sound beams at angles of 0, 45 , 60, and 70 degrees. During application of the meth...

Ngày tải lên: 05/08/2014, 11:20

... through- thickness direction, and P = effective dimension of the distance between the edge of component and edge of crack in the through-thickness direction Figure 6 -4. Resolution of a discontinuity ... Milton Keynes, MK 14 6LE) EM 1110-2-60 54 1 Dec 01 6-11 Figure 6- 14. Embedded elliptical or circular crack (Barsom and Rolfe 1987, p 47 . Reprinted by per...

Ngày tải lên: 05/08/2014, 11:20

... src="data:image/png;base 64, iVBORw0KGgoAAAANSUhEUgAAAkIAAAGfCAIAAAA8jSo7AAAACXBIWXMAABYlAAAWJQFJUiTwAAAgAElEQVR42u3dWZajurIAUKhV8zIemWFkNiPjfeiWno5ojDvavT9qZTmdaScGhSLUUBQAsFtlURRd1zkQAOwvhpXlH0cBgP0SxgAQxgBAGAMAYQwAYQwAhDEAEMYAQBgDQBgDAGEMAIQxAIQxABDGAEAYAwBhDABhDACEMQAQxgBAGANAGAMAYQwAhDEAhDEAEMYAYBl/HQLgVNq2vVwuE999PB5FUVRVFb7YjsfjUVXV2Lfi 247 /xsfDf3/9d1VVdb/flz8sZVEUXdc5s+ETTdPcbreJRrNp...

Ngày tải lên: 05/08/2014, 11:20