کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
267531 504404 2012 14 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Temperature effects on load transmission between slabs and shores
موضوعات مرتبط
مهندسی و علوم پایه علوم زمین و سیارات مهندسی ژئوتکنیک و زمین شناسی مهندسی
پیش نمایش صفحه اول مقاله
Temperature effects on load transmission between slabs and shores
چکیده انگلیسی

This paper analyses the influence of temperature changes on load transmission between floor slabs and shores during the in situ casting of concrete slabs by the shoring-clearing-striking method. Therefore several experimental studies were carried out which measured both the internal temperature evolution of the slabs and the loads on the shores. With the results of these studies, a Finite Element Model (FEM) of an experimental structure was then developed. In both the FEM and the experimental studies the same behaviour was observed regarding changes in temperature. When temperatures rose, the loads on shores decreased, accompanied by a reduction in slab deflection. When temperatures dropped, the loads on the shores increased, accompanied by an increased slab deflection. In the experimental study, for a temperature increment of ±1 °C the load per surface unit on shores varied between 0.13 kN/m2 and 0.34 kN/m2, which represents between 2% and 6% of the self-weight of the slabs. The main cause of these load variations appears to be the temperature gradient inside the floor slabs.


► An experimental study to evaluate construction loads in concrete buildings is exposed.
► The effect of temperature variations, on structural elements and shores, is studied.
► Considering this effect, a FEM of an experimental building was developed.
► The FEM and the experimental results present the same behaviour patterns.
► In the case studied, when temperature rose the load on shores decreased and viceversa.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Engineering Structures - Volume 39, June 2012, Pages 89–102
نویسندگان
, , ,