کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
510930 865803 2005 10 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Practical crack control during the construction of precast segmental box girder bridges
موضوعات مرتبط
مهندسی و علوم پایه مهندسی کامپیوتر نرم افزارهای علوم کامپیوتر
پیش نمایش صفحه اول مقاله
Practical crack control during the construction of precast segmental box girder bridges
چکیده انگلیسی

Cracks that occurred in the bottom slab of a precast segmental bridge were investigated through a construction sequence analysis, which revealed that the cracks were caused by excessive deformation during temporary post-tensioning while joining the segments. In addition, a parametric study was performed to evaluate the effects of the prestressing sequence, bottom slab thickness, and position of the prestressing anchors. The structural behavior of the girder sections was greatly affected by the thickness of the bottom slab and the position of prestressing anchors, but not by the prestressing sequence. Based on the results, a construction method that prevents the cracks is proposed.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Computers & Structures - Volume 83, Issues 31–32, December 2005, Pages 2584–2593
نویسندگان
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