Investigation of the Modified Beam-in-Slab Bridge System: Volume 1 Technical Report, Volume 2 Design Manual, and Volume 3 Design Guide

This project (Phase 3 of the Investigation of Two Bridge Alternatives for Low Volume Roads) is a continuation of research which addresses some of the numerous bridge problems on Iowa’s secondary road system. Volume 1 of the three volume final report presents the development of the Modified Beam-in-Slab Bridge (MBISB) system in the form of three technical papers beginning with a summary of previous research and an overview of the laboratory testing. Three specimens were designed, constructed and tested to determine the combined behavior of the alternative shear connector and the transverse arch. The purpose of the first two specimens was to evaluate the failure mode of the transverse arch. The third specimen was a model bridge constructed to evaluate the global behavior of the modifications when incorporated into a full scale structure. The results from the laboratory phase, presented in detail in the second technical paper, indicated the modifications were applicable to full scale low volume road structures; thus, two demonstration bridges were designed and constructed. The demonstration bridges were field tested to determine the structural behavior; instrumentation was installed at critical sections to measure strains and deflections. The resulting data confirmed compliance with strength and serviceability requirements. Based on the field data and subsequent analysis, the demonstration bridges were found to exceed design requirements and possess considerable reserve capacity. The results of the field testing are presented in the third technical paper. A design methodology was then developed based on the test results and applicable American Association of State Highway and Transportation Officials (AASHTO) Load and Resistance Factor Design (LRFD) Bridge Design Specifications strength and serviceability requirements. Volumes 2 and 3 describe the design methodology developed and provide a design example and construction guidance. Volume 2, the Design Manual, contains a detailed example listing the steps required to design a MBISB. The Design Manual also includes a tabular summary of selected designs and a PowerPoint slide show documenting the construction of MBISB 2. The Design Guide (Volume 3) is a complement to the Design Manual (Volume 2) and provides background information on the development of the MBISB design criteria. The design guide presents an overview of the laboratory and field tests that were completed. An explanation of the resulting MBISB design methodology and criteria are also presented.

• Record URL:
  http://publications.iowa.gov/id/eprint/2425
• 
• Record URL:
  https://rosap.ntl.bts.gov/view/dot/29446
• Record URL:
  https://rosap.ntl.bts.gov/view/dot/29447
• Record URL:
  https://rosap.ntl.bts.gov/view/dot/29448
• Corporate Authors:

  Iowa State University, Ames

  Department of Civil, Construction and Environmental Engineering
  Town Engineering Building
  Ames, IA  United States  50011-3232

  Iowa Department of Transportation

  Highway Division, 800 Lincoln Way
  Ames, IA  United States  50010

  Iowa Highway Research Board

  800 Lincoln Way
  Ames, IA  United States  50010
• Authors:
  • Wipf, T J
  • Klaiber, F W
  • Brehm, L W
  • Konda, T F
• Publication Date: 2004-11

Language

• English

Media Info

• Media Type: Digital/other
• Edition: Final Report
• Features: Appendices; Figures; Photos; References; Tables;
• Pagination: 389p

Subject/Index Terms

• TRT Terms: Bridge design; Field tests; Guidelines; Laboratory tests; Low volume roads; Manuals
• Identifier Terms: AASHTO LRFD Bridge Design Specifications
• Uncontrolled Terms: Modified beam-in-slab bridges
• Geographic Terms: Iowa
• Subject Areas: Bridges and other structures; Design; Highways; I24: Design of Bridges and Retaining Walls;

Filing Info

• Accession Number: 01584332
• Record Type: Publication
• Report/Paper Numbers: Iowa DOT Project TR-467
• Files: NTL, TRIS, ATRI, STATEDOT
• Created Date: Dec 30 2015 4:08PM