Design of enclosing structures of a residential building using a system of permanent formwork as a control element of the life cycle of a construction object
The article discusses the use of fixed formwork systems in the design of external enclosure structures as a way to increase the competitiveness of a contractor in the construction market. In modern Russia, a large proportion of customers adhere to the choice of contractor through tendering. This direction is set by the state by introducing Federal Laws 44 and 223 "On the Contract System in the Sphere of Procurement of Goods, Works, and Services". Under conditions of the auction, the contracting organization needs to familiarize itself with the terms of reference and find technologies and ways of organizing the production of works to reduce costs and thereby provide better conditions in price and quality for the customer. Expenses on making formwork are usually 1/3 of the price of concrete work. In addition, properly selected formwork is the key to high-quality execution of construction and installation works. This study will help the contracting organization approach the issue of selecting a formwork system from scientific point of view and be confident in compliance with domestic legislation. As a justification for choosing a fixed formwork system, the variant design method is used. The essence of the method lies in the fact that several alternative, competitive options (models) are being developed in terms of the material composition and method of erecting enclosure structures developed using different engineering solutions. Using the method of comparative analysis, further substantiation of the best option is made according to the criterion of efficiency (optimality). Indicators of efficiency will be considered the complexity, duration of the process and the need for labor. An effective option will be considered the option that has the least value for all indicators.