By Kenneth M., Jr. Childs
This handbook offers suggestions for these focused on underwater structural inspection. It offers directions representing criteria of perform, documentation and reporting, and administrative concerns for numerous inspection forms, together with new development, baseline, regimen, fix layout, certain, fix development, and postevent inspections. the 1st of a number of large appendices offers instructions for the inspection of detailed underwater constitution kinds, together with bridges, open-piled constructions, gravity and keeping buildings, marinas, hydraulic buildings, pipelines and conduits, dry docks, locks and gates, floating buildings, breakwaters, tower bases, moorings and anchors, tanks and garage amenities, and cathodic security structures. next appendices contain forms and explanations of defects and deterioration usually present in underwater concrete buildings, metal buildings, wood buildings, masonry buildings, composite structural elements, and undermining and scour; references for acquiring in-depth info at the constitution varieties; and an in depth word list of key phrases.
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Extra resources for Underwater Investigations: Standard Practice Manual
Typically, the structure should be ready to have bid documents prepared at this stage, using the results of the repair design inspection. 1 Objectives Special inspections should be conducted with a specific purpose in mind. 2 Methods of Inspection and Documentation Special inspections may include field testing, laboratory testing, laboratory analysis, or a combination thereof. The scope of special inspections will be dictated by the type of testing or analysis to be performed. Standard test methods exist for many special inspection types.
Because the effectiveness of a wrap may be compromised by removal and because the removal and reinstallation of wraps is time-consuming, such removals should not be routinely done. However, if evidence of significant damage exists or the effectiveness of the wrap is questionable, then a sample of wraps should be removed to facilitate the inspection and evaluation. The sample may be limited to particular zones or portions of the member where damage is suspected, for example, at the waterline. The sample size should be determined on the basis of the physical evidence of potential problems.
If a reported condition has not had an adverse effect on the structure, that should be noted. This section may also contain a narrative description of causes contributing to the observed conditions as well as the engineer's assessment of the structure and the rationale for that assessment. If a numerical condition assessment rating system is used, such as described in Chapter 2, then that rating should be assigned. Although the assessment should be based on sound engineering judgment and accepted standards of good practice, the assessment and DOCUMENTATION AND REPORTING 47 the recommendations that proceed from the assessment may vary between engineers.