Evaluation of breaking load parameters under shock wave loading for critical constructions of oil and gas sector facilities

Abstract

Relevance of the research is caused by the fact that in recent years the necessty to design concrete constructions in oil and gas facilitiesoccurs more often. These constructions may be impacted by intensive short-term dynamic loads, emergency bearing of shock-wave character. Risk of shock waves effect on buildings and constructions increases as a result of possible explosions, accidental drop of heavy loads, acts of terrorism, natural and manmade disasters, etc. The occuring specific loads often cause significant damage of building structures, and even their total or partial destruction, which can lead to injury or loss of life, as well as damage of expensive equipment and, therefore, significant material costs. In addition, damage of building structures of critical constructions in oil and gas complex lead to a process shutdown, which is economically inefficient in some cases and even unacceptable. The main aim of the study is to develop the methodology for assessing the failure load under shock-wave loading for critical building structures of oil and gas complex facilities. The methods used in the study: measurement of load and support reactions by tensometry methods, graphic-analytical method of research using Microsoft Excel software, numerical integration by Simpson. The results. The authors have developed the method for estimating the parameters of the shock-wave nature for critical building structures of oil and gas complex facilities applying the instantaneous and average values of resultant force coefficients. By the example of the short-term dynamic load test of reinforced concrete bent element the authors obtained the instant and average values of resultant force coefficient.

Keywords

• resultant force coefficient
• short-term dynamic load
• shock-wave loading
• reinforced concrete
• support reactions
• experimental study