Dissertation > Transportation > Road transport > Bridges and Culverts > Bridge Construction > The works > Concrete and reinforced concrete works

Study on Concrete Creep Theory Applied in Construction of Continuous Rigid Frame Bridge

Author SunHongGuang
Tutor HuDaLin
School Chang'an University
Course Architecture and Civil Engineering
Keywords Concrete Creep Deflection Construction Control
CLC U445.57
Type Master's thesis
Year 2011
Downloads 25
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The bridge is a complex spatial structure , especially pre-stressed concrete bridge . Deflection control is one of the key success of the construction , cantilever construction , creep deformation and stress caused redistribution is a difficult deflection control . Concrete creep occurs by concrete to suffer load a \losses. Consider the creep deflection calculation of the structure is extremely complex , because it contains a number of factors, including concrete creep and even calculated Precamber before construction should also be calculated data and compared with the design value , thus find the problem. At present , at home and abroad rise construction boom span continuous rigid frame . Span continuous rigid frame construction process , there are some problems to be solved : the the stress measurement value in the construction process generally larger bridge late creep deflection than expected too much shrinkage and creep of the pier top longitudinal obviously biased bit . From shrinkage and creep mechanism , influencing factors and calculate the theoretical aspects of these issues made ??to a certain extent of and effective solution , the summarized method for large -span continuous rigid frame bridge construction to provide a reference .

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