Details:

Creators:
Minnetyan, Levon ; Janoyan, Kerop D.
Minnetyan, Levon ; Janoyan, Kerop D. Less -
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:

Supporting Files

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