Abstract

One of the largest economic sectors in Brazil is the construction industry, being an important segment for investments in the country. As a result, it is a firmly established sector which has attained a high level of competitiveness. However, given the dynamic approach necessary in a world of accelerated change, the construction industry faces a wide range of challenges which must be addressed so to maintain, and if possible, improve its competitiveness. This study aims to determine how to maximize the profit of a construction company located in Curitiba, Parana state, applying techniques of Operations Research, an analytical method of problem-solving and decision-making. The tool used to perform the optimization was Linear Programming, a mathematical modeling technique in which a linear function is maximized or minimized when subjected to various constraints. The results show a strong possibility of increasing the company’s profit by production leveling.

Highlights

  • This study aims to determine how to maximize the profit of a construction company located in Curitiba, Paraná state, applying techniques of Operations Research, an analytical method of problem-solving and decision-making

  • The results show a strong possibility of increasing the company’s profit by production leveling

  • One of the largest economic sectors in Brazil and in the world is that of civil construction, being one of the most important spheres of investment in a country resulting in infrastructure, both at home and for companies and industries

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Summary

INTRODUCTION

One of the largest economic sectors in Brazil and in the world is that of civil construction, being one of the most important spheres of investment in a country resulting in infrastructure, both at home and for companies and industries. In recent years, the Brazilian construction market has fallen due to political and economic instability, resulting in the entire construction materials logistics chain having low sales volume and having to rethink their strategies and costs. In this context, the largest cement factory in Latin America has three industrial complexes to produce its entire product portfolio, and until 2012 and mid-2013 it was used to its maximum production potential, from 2013 with crises in the constructions only 1 complex is in operation not reaching maximum production capacity. The company began to apply simple linear programming methodologies to understand how its production leveling and portfolio could reduce costs and maximize profits. To create a fast and simple linear programming tool, so that managers can make decision-making instantly if the market scenario changes, minimizing the impact of future crises and maximizing profit in positive scenarios

II.1 OPERATIONAL RESEARCH
II.2 MATHEMATICAL PROGRAMMING
II.3 LINEAR PROGRAMMING
II.4 SOFTWARE
II.5 MODELING
DEVELOPMENT
III.1 MATHEMATICAL MODEL
RESULTS
IV.1 SENSITIVITY ANALYSIS
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