COMPARATIVO ENTRE OS SISTEMAS ESTRUTURAIS EM CONCRETO ARMADO PRÉ-FABRICADO E MOLDADO IN LOCO

Abstract

Due to factors such as low productivity and large waste of materials, the Civil construction is considered to be late when compared to other branches. One and perhaps the most efficient way to increase its efficiency is the use of elements manufactured in locations other than the final disposal, facilitating this process and combating other problems that involve this process. These elements produced in different places than they will be introduced, are called precast or prefabricated, differentiating them basically by the rigorous control and production process. However, due to the resistance suffered in the construction industry by changes, due to the already established methods, it is necessary an approach aiming at the comparison between such methods. With this objective, this work searched in bibliographical references the particularities of the pre reinforced concrete methods. -fabricated concrete and cast-in-place (on-site), describing the process of execution of the former, for a better knowledge about it, and presenting the largest discrepancies between both, presenting advantages of both the prefabricated method, as the reduction or even elimination the use of formwork and crimping in the execution and the possibility of using lower coefficients in the design of the elements, as well as the method of cast-in-place concrete, as ease of execution in the joints of the elements and unnecessary consideration of atypical requests those in which the element will suffer. in your final position. Thus, parameters were defined for such comparison, using a commercial building for a case study that compared the quantitative of materials between the two methods, being the prefabricated concrete using rigid connections, reaching the conclusion that The prefabricated concrete structure is more economical for concrete materials and formwork, but is more unfavorable to the amount of steel.