Date of Award
1964
Degree Type
Thesis
Degree Name
Master of Science in Civil Engineering (MSCE)
Department
Civil Engineering
First Advisor
Charles Bernard Clarke
Abstract
This investigation deals with the comparison of plastic and elastic designs of four different types of reinforced concrete slabs. The types of slabs investigated consist of a flat slab with and without drop panel, a flat plate and a two-way slab. The loads considered for the slabs are 150 psf and 500 psf.
The empirical method of the ACI Code is used in the elastic design of flat slabs with and without drop panels and for flat plates. The two-way slabs are designed elastically according to the Method 2 of the code. In plastic design the moments on which the designs are based are determined by the application of the yield line theory and the most probable critical yield patterns are determined.
The findings of this investigation are included in the summary. For the different types of slabs the required thicknesses, the quantity of positive and negative steel per foot of slab and the total amounts of positive and negative steel required in a full panel are tabulated. A comparison of the required areas of positive and negative steel and the thicknesses for the four types of slabs is made.
Results of this investigation show that by plastic design the required amounts of steel are generally higher. For the 500 psf load, slabs designed plastically require a smaller thickness. For the 150 psf load, plastic design gives either a thickness equal to or smaller than the thickness determined by elastic design.
Recommended Citation
Waizy, Abdul Azim, "COMPARISON OF ELASTIC AND YIELD LINE DESIGN OF REINFORCED CONCRETE SLABS" (1964). Open Access Master's Theses. Paper 2511.
https://digitalcommons.uri.edu/theses/2511