SIMULATION OF THE INFLUENCE OF GEOMETRIC FEATURES ON MULTI-STOREY BUILDINGS VIBRATION CHARACTERISTICS

Abstract

Background. Nowadays, assessing the reliability of buildings and structures is performed by calculating the static strength of building structures and calculating fatigue and strength. One of the most important conditions for increasing the efficiency of use of buildings and structures is to ensure the strength and reliability of their structures. This led to the development of new methods for calculating strength, durability, and performance properties, including their behavior under conditions of high temperatures and dynamic loads. The effectiveness of further improvement of construction management is highly depends on how well developed the base of resource standards for construction processes. The old regulatory framework was created for the functioning of the construction industry in the planned economy. It is unsuitable for a market economy and not only slows down construction, but also increases the number of errors. This leads to undesirable results.Objective. Simulation allows you to increase the level of automation of construction preparation, to develop standards for resource consumption for standard and special projects. A large amount of work to clarify the existing standards for resource consumption cannot be carried out without the use of computer modeling. Modeling is increasingly used in the construction industry, so the goal of this work is to do geometric modeling of a multi-storey building according to one of the most common projects of Ukraine in the 90s.Conclusions. In this work, using the SolidWorks CAD system, geometric models of a multi-storey building of varying complexity were created. They will allow in the future to carry out simulation modeling of the influence of dynamic effects in the form of seismic vibrations of various intensities. In addition, it will be possible to evaluate the effect of the presence of different structural elements on the time and accuracy of the calculation. The constructed models differ among themselves by the presence of internal (non-bearing) walls, a staircase and separate passages. Joint simplification of models consists in the absence of attic, basement and elevator shaft rooms. In addition, a geometric model of a pile foundation with a tape monolithic grillage was constructed for the possibility of studying the soil-structure interaction. Simulations have shown that using a full model of a multi-storey building gives a more accurate result. Also, as a result of simulation, it was determined that under vibrational load the largest deformations occur in the areas of the roof and foundation.