High Strength Bolts for Bridges (with Addendum of April 14, 1994). Demonstration Project No. 88
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High Strength Bolts for Bridges (with Addendum of April 14, 1994). Demonstration Project No. 88

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  • Corporate Creators:
    United States. Federal Highway Administration
  • Subject/TRT Terms:
  • Publication/ Report Number:
    FHWA-SA-91-031
  • Resource Type:
    Tech Report
  • Geographical Coverage:
    United States
  • Corporate Publisher:
    United States. Federal Highway Administration
  • Abstract:
    The objectives of Demonstration Project No. 88 are to disseminate relevant information and demonstrate various techniques and methods to assure that all high-strength bolts for bridges will be specified, purchased, manufactured and installed in accordance with the appropriate specification requirements. This volume is a guide for accomplishing these objectives. The contents are presented in the following twelve sections, which are designated "Sessions" and contain photographs of the slides which would accompany an oral presentation: (1) Introduction, Objectives and Problems Encountered; (2) Theory and Behavior of Structural Bolts and Connections; (3) FHWA Requirements for High-Strength Bolts: FHWA Supplemental Specifications; (4) Manufacturing Processes; (5) Receipt Inspection, Storage, Pretest, Review of MTD (Mill Test Data); (6) Job-site Rotational-Capacity Testing; (7) Installation--General; (8) Turn-of-Nut Tightening; (9) Direct Tension Indicators; (10) Calibrated Wrench Tightening; (11) Alternate Design and Lock Pin and Collar Fasteners; and (12) Re-Use and Inspection. There are six Appendices: (A) Installation Procedure Guides; (B) Definitions and Fastener Behavior; (C) FHWA Supplemental Specification; (D) ASTM Specifications A194, A325, A490, A563, F436, F606, and F959 and ANSI Specifications B18.2.1 and B18.2.2; (E) AASHTO Standard Specifications for Highway Bridges - Division II, Section 11; and (F) Specification for Structural Joints Using ASTM A325 or A490 Bolts (RCSC).
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