Open AccessErection of Formwork with Optimum Spacing of Joists and Stringers
Author(s) -
M. Sánchez D.,
Venkata Subramaniam C,
G. Nandhini
Publication year - 2020
Publication title -
international journal of innovative technology and exploring engineering
Language(s) - English
Resource type - Journals
ISSN - 2278-3075
DOI - 10.35940/ijitee.i7155.079920
Subject(s) - formwork , deflection (physics) , structural engineering , engineering , geotechnical engineering , optics , physics
The success of any project depends on suitable and economical formwork arrangements and it accounts about 25% in the overall cost. The project completion time depends on the erection and de-shuttering of formwork. Proper planning, management and safety is very important to finish the project within the cost budget and satisfactory quality. This study focuses on the conventional type of form work using timber joists and stringers loaded with different types of spacing in an actually erected model. The soil has been compacted, consolidated before the erection of model. After erections, the entire model has been subjected to sand bag loading with the specified loading capacity per sq. m. The deflections due to the added load on the formwork is characterized by standard deflectometer for different spacing of timber joists. Accordingly, the shores spacing have also been obtained with the designed load bearing capacity. With this study it has been found that the stability of formwork is analyzed based on vibrations and deflections. Hence the study infers that optimum spacing of joists designed should be decreased for minimum deflection. The vibrations and key factors for this erection have been identified and the results are presented.