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Conservation of Historic Stone Buildings and Monuments (1982) / Chapter Skim
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Diagnosis and Prognosis of Structural Integrity
Pages 233-241

The Chapter Skim interface presents what we've algorithmically identified as the most significant single chunk of text within every page in the chapter.
Select key terms on the right to highlight them within pages of the chapter.


From page 233...
... This paper presents a general methodology for the diagnosis and prognosis of structural integrity in masonry structures. Basic steps in this procedure include preliminary evaluation, on-site investigation, off-site research, preliminary analysis, laboratory and field tests, and structural evaluation.
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From page 234...
... Rapidly increasing deterioration of basically sound original `designs may be attributed to such factors as excessive loading, accident, human action, and/or significantly increased environmental exposure. Excessive loading includes any loading greater than that considered in the original design, such as sonic booms and vibration resulting from traffic.
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From page 235...
... Preliminary Evaluation Plan The preliminary evaluation plan involves establishing procedures for preparing a project dossier, including methods of organizing information and of documenting and recording data obtained in the diagnostic activities. However, concurrent with organization of the diagnostic effort, pertinent available information concerning the structure should
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From page 236...
... Off-Site Research 1 Additional Investigative Research
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From page 237...
... In masonry construction in general, points of high shear and low moment should be identified and examined, because joints, bearings, and connections are normally the most vulnerable ~n(l critical areas of a structure. Testing Alternatives Visual site investigation, along with a review of available documents, is intended to permit identification of deficient portions of the struc
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From page 238...
... A research project is finder way to assess the applicability of four nondestructive test (NDT) methods currently used for evalution of soil, rock, and concrete to the evaluation of masonry structures.2 The four NOT methods are: harness, mechanical pulse velocity, ultrasonic pulse velocity, and dynamic response vibration techniques.
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From page 239...
... Concrete block units, although highly controlled in recent years, will also display significant ranges in properties, as will stone units. Some structures may have been designed using the rule-of-thumb approach, and an analysis using modem techniques may indicate considerable latent capacity.
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From page 240...
... r Diagnosis f Causes | Determinatio ~ of Remedies | ~ . _ _ Decision f Remedy 1 Elimination of Causes 1 Correction of Deficiency FIGURE 2 Deficiency-correction process.
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From page 241...
... Structural Evaluation Guide for Building Rehabilitation. Report submitted to National Bureau of Standards, July 18, 1979.
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Key Terms

  • masonry structures
  • structural evaluation
  • masonry construction
  • preliminary evaluation
  • construction materials

  • historic masonry
  • masonry units
  • pulse velocity
  • laboratory tests
  • evaluation plan

  • historic structures
  • human action
  • masonry monuments
  • existing structural
  • site investigation

  • excessive loading
  • water penetration
  • structural capacity
  • structural adequacy
  • remedial action

  • structural appendages
  • architectural restoration
  • roman times
  • nondestructive testing
  • nonstructural masonry

  • existing deficiencies
  • castle ruins
  • sound original
  • monocular reticule
  • increased tourism


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