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:
  Bridges Computer Programs Design Load Live Loads Load Factor Load Limits Loads Load Tests Mechanical Tests Resistance (Mechanics) Shear Strength Shear Tests Software Torsion Torsion Tests 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.
  
  
• Format:
  PDF
• Funding:
  C1723
• Collection(s):
  University Transportation Centers US Transportation Collection
• Main Document Checksum:
  urn:sha-512:2781dd804875f466f31eb46b8e567c64183b9a2319050dab4eba4f45bfe25319cf3b2d3e628bddbceead8b0d96bbf3e0b830c36a5ea6b3d00de46ed684045032
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/23479/dot_23479_DS1.pdf
• File Type:
  [PDF - 3.21 MB ]