Open AccessAnalysis of Sunshine Temperature Field and Temperature Effect of Prestressed Concrete Beam Bridge
Author(s) -
Liuyu Zhang,
Siyue He,
Guitong Zhang,
Jingwen Zhou,
Lezhou Huang,
Zhiguo Wang
Publication year - 2020
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.179
H-Index - 26
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/571/1/012082
Subject(s) - materials science , beam (structure) , adina , prestressed concrete , cracking , structural engineering , finite element method , stress (linguistics) , creep , hysteresis , t beam , bridge (graph theory) , composite material , engineering , physics , medicine , linguistics , philosophy , quantum mechanics
Temperature stress is one of the important causes of concrete structure cracking. In order to study the development law of temperature field and temperature effect of prestressed concrete beam bridge under sunshine load, taking the construction of a prestressed concrete beam bridge as an example, ADINA finite element software was used for solid simulation and compared with the measured value. The results show that the temperature curve of each point inside and outside the beam is consistent with that of the ambient temperature, but it has some hysteresis. The temperature stress distribution of the beam body calculated by using the temperature gradient in the current code is approximately the same as the measured value. The top and bottom plates are compressed, and the web plate produces large tensile stress.