Analysis of technical solutions of stacks in high-rise buildings

Nowadays, due to the maximum use of building lands, high-rise buildings in the cities are coming to the forefront of construction. A high-rise building is a building that, due to its height, requires a different technical, technological and structural design. Due to the increasing floors of buildings, more and more demands are placed on sanitary installations in terms of hygiene and quality of distribution. With the drainage in a high-rise building, the biggest problem arises in the design of stacks, which must be given individual attention. Foul water stacks must be designed in such a way that the overpressure and negative pressure created in them do not cause the extraction of water from traps and thus the spread of unpleasant smell in the building. Fluctuations in the pressure in stacks are influenced by many other factors, such as the method of venting of the stack, the fitting used on the stack, or the transition of the stack to the drain. When dimensioning stacks in addition to the correct design, it is also necessary to use a suitable system, which significantly affects the investment costs. A properly chosen system can save a lot of money that could arise from excessive dimensions, unnecessary fire protection systems, or anchorages. The paper deals with a theoretical analysis of modern technical solutions that positively affect pressure fluctuations in waste water pipes in high-rise buildings.