| 摘要 |
PROBLEM TO BE SOLVED: To analyze the temperature stress of concrete while taking account of the time dependence of modulus of elasticity or creep properties appropriately. SOLUTION: In the method, an initial strain ε1i is defined while including the temperature strain εTi of material age ti and a modulus of elasticity Ei is defined for a time section (ti -ti-1 ) (step 101). If a creep strain εCi is present in addition to the temperature strain εTi , it is defined as required (step 102). Subsequently, the temperature stress1 σ1 of concrete at the end point of the time section (ti -ti-1 ) is calculated according to a relation between the1 σ1 and the actual strain1 εi at that moment (step 103) followed by calculation of the stress0 σi+1 of concrete at the end point of a time section (ti+1 -ti ) is calculated by applying the calculation results to a relation between the0 σi+1 and the actual strain0 εi+1 at that moment (step 104). |
