دانلود pdf مقاله سیستم سقف تیرچه ای بتنی بدون شمع بندی و با استفاده از بتن سبک سازه ای – فایل مورد نظربا فرمت pdf با حجم ۸۰۰ کیلو بایت در۸ صفحه می باشد. دوستان گرامی و مهندسین ارجمند و عزیز در صورت تمایل می توانند این فایل بسیار با ارزش را به صورت مستقیم و رایگان از سافت سیویل دانلود نمایند. نویسندگان: وحیدرضا کلات جاری، پویا منصوریان
Abstract: Development of new techniques and improvements of the existing methods are of concerns of the new generation of civil engineers. One of the most popular types of the floor systems is concrete joist floor system. The traditional method consist the use of piling to limit the deflection of the joists during the construction of floors. Omitting this supports (piles) saves money and time and is a remarkable improvement in the techniques of construction. The aim of the present research is to find the new materials and to perform the structural computations to be able to remove the piles during the construction. Such a system is called “Self-Standing Joist Floor Systems”. To achieve the goal of the research, first the formulation and the reason of using the light weight concrete in joists is demonstrated and then 15 concrete beams with 4-m length each was constructed and the load-deflection behavior on each was measured. Finally one floor without piling is constructed and based on codes is loaded. The results of these tests were compared with those of the numerical test performed with ANSYS (V.5.4) software and showed a good agreement. The method was also investigated from an economical point of view.In the present thesis based on complete investigate of the economy of available methods and the computational basis of the proposed methods and the experimental set up and the test conditions, out coming that the proposed self-standing light weight concrete joist floor system has remarkable advantages in compare with the traditional systems