The influence of construction and service stages on the internal forces of prestressed precast beams

Computational Civil Engineering Conference 2019

土木建筑工程

Stan, I.L.^1 ; Florea, N.^2 ; Mihai, P.^2 ; Tnsuc, V.C.^1

Doctoral School, Faculty of Civil Engineering, Building Services, Gheorghe Asachi Technical University of Iai, Romania^1

Department of Concrete, Materials Technology and Management, Faculty of Civil Engineering and Building Services, Gheorghe Asachi Technical University of Iai, Romania^2

关键词: Accurate design;    Construction stages;    Construction technologies;    Influence of construction;    Internal forces;    Mounting stage;    Precast beams;    Stress development;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/586/1/012018/pdf
DOI  :  10.1088/1757-899X/586/1/012018

学科分类：土木及结构工程学

来源: IOP

【 摘 要 】

The accurate design of prestressed precast beams is correlated with the proper evaluation of construction and service stages. On usually are considered the following construction stages: casting, transfer of prestressing, storage time, transport and mounting stage. In the presented paper, it will be illustrated the stress development on the beams by altering the specific times between different construction and service stages as a result of using different construction technologies as well as a consequence by imposing in advance different requirements during the design phase. To highlight these particularities IDEA StatiCA software was used, and a comparison between various cases is presented.