Tool for analysis of early age transverse cracking of composite bridge decks.

Details

• Creators:
  Minnetyan, Levon ; Janoyan, Kerop D.
• Corporate Contributors:
  Transportation Infrastructure Research Consortium (U.S.)
• Subject/TRT Terms:
  Bridge Decks Composite Materials Transverse Cracking
• Publication/ Report Number:
  Research project SPR-06-37 (C-06-37)
• Resource Type:
  Tech Report
• Geographical Coverage:
  United States
• Corporate Publisher:
  Transportation Infrastructure Research Consortium (U.S.)
• Abstract:
  "Executive Summary: Computational methods and associated software were developed
  
  to compute stresses in HP concrete composite bridge decks due to temperature, shrinkage, and
  
  vehicle loading. The structural analysis program uses a layered finite element model. Before
  
  running the structural analysis code, layer-by-layer time history temperatures due to hydration
  
  heat are computed using a thermal finite element analysis program. Nodal coordinates for the
  
  thermal finite element analysis are generated from the layer thicknesses of the structural analysis
  
  finite element model. Autogeneous shrinkage, drying shrinkage, and stress relaxation due to
  
  creep are taken into account using models based on HP concrete test data. The software
  
  computes time-history residual stresses for 28 days. After 28 days an HS25 vehicle load is
  
  additionally applied. Longitudinal stress levels are printed layer by layer for comparison with the
  
  modulus of rupture and assessment of cracking. A composite bridge specimen was built in the
  
  structures testing lab in Clarkson University with thermocouple and strain gage instrumentation.
  
  After monitoring temperatures and strains for 28 days, the test specimen was loaded by a
  
  concentrated load applied by universal testing machine. Cracking under loading was observed
  
  and monitored. Software predictions were compared with test data. A one-day training course
  
  was conducted in Albany for NYSDOT engineers on August 3, 2011 to communicate the
  
  research findings and recommendations as well as provide training for the use of the developed
  
  software.
  
  This report is organized into seven parts. Each part number is associated with the corresponding
  
  task number."
  
  
• Format:
  PDF
• Funding:
  Contract #C010331
• Collection(s):
  US Transportation Collection
• Main Document Checksum:
  urn:sha256:4da374d0eff956e7994c0fee489bec4c6eb4cb6f681356678ad2ef7ece84a03b
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/23348/dot_23348_DS1.pdf
• File Type:
  [PDF - 5.29 MB ]