Software for AASHTO LRFD combined shear and torsion computations using modified compression field theory and 3D truss analogy.

Details

• Creators:
  Halim, Abdul Halim ; Rasheed, Hayder A. ; Esmaeily, Asad
• Corporate Creators:
  Kansas State University. Transportation Center
• Corporate Contributors:
  Kansas. Dept. of Transportation. Bureau of Materials & Research ; K-Trans (Firm)
• Subject/TRT Terms:
  • Computer programs
  • Software
  • Load factor
  • Design load
  • Load limits
  • Load tests
  • Loads
  • Live loads
  • Resistance (Mechanics)
  • Truss bridges
  More +
• Publication/ Report Number:
  K-TRAN: KSU-08-5
• Resource Type:
  Tech Report
• Geographical Coverage:
  Kansas
• Edition:
  Final report; Jan. 2008-Sept. 2010.
• Corporate Publisher:
  Kansas. Dept. of Transportation
• Abstract:
  The shear provisions of the AASHTO LRFD Bridge Design Specifications (2008), as well as the simplified ; AASHTO procedure for prestressed and non-prestressed reinforced concrete members were investigated and compared ; to their equivalent ACI 318-08 provisions. Response-2000 is an analytical tool developed for shear force-bending ; moment interaction based on the Modified Compression Field Theory (MCFT). This tool was first validated against ; the existing experimental data and then used to generate results for cases where no experimental data was available. ; Several reinforced and prestressed concrete beams, either simply supported or continuous were examined to evaluate ; the AASHTO and ACI shear design provisions for shear-critical beams. ; In addition, the AASHTO LRFD provisions for combined shear and torsion were investigated and their accuracy ; was validated against the available experimental data. These provisions were also compared to their equivalent ACI ; code requirements. The latest design procedures in both codes can be extended to derive exact shear-torsion interaction ; equations that can directly be compared to the experimental results by considering all φ factors as one. In this ; comprehensive study, different over-reinforced, moderately-reinforced, and under-reinforced sections with highstrength ; and normal-strength concrete for both solid and hollow sections were analyzed. ; The main objectives of this study were to evaluate the shear and the shear-torsion procedures proposed by ; AASHTO LRFD (2008) and ACI 318-08, validate the code procedures against the experimental results by mapping ; the experimental limit points on the code-based exact ultimate interaction diagrams, and also develop a MathCAD ; program as a design tool for sections subjected to shear or combined shear and torsion effects.
  More +
• Format:
  PDF
• Funding:
  C1723
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/23479/dot_23479_DS1.pdf
• File Type:
  [PDF - 3.21 MB]
• Collection(s):
  University Transportation Centers ; US Transportation Collection
• Main Document Checksum:
  urn:sha-512:2781dd804875f466f31eb46b8e567c64183b9a2319050dab4eba4f45bfe25319cf3b2d3e628bddbceead8b0d96bbf3e0b830c36a5ea6b3d00de46ed684045032