Abstract
Structural schemes of coverings using lightweight roof structure from modern composite materials are investigated in this paper. A comparison of two options for cable-stayed covering of a circus auditorium, one with an orthogonal mesh of cables (according to a standard design) and another one, with a mesh of cables formed by two groups of stabilizing cables are considered. The possibilities of reinforcement with composite material are analyzed. Calculation and preliminary selection of cable-stayed sections are also carried out and presented. The variations of the conditional volume with the relative sag arrows, for varying values of the coefficient qk have been investigated and shown on graphs. An optimization problem was solved and the optimal result with detailed calculations are proposed and presented in this research which enable the design of the cable-stayed coating with determination of its design characteristics. As a result, the optimum and most economical sections of the cable-stayed covering were obtained. The calculations also show the inexpediency of using a heavy roof structure for saddle cable-stayed coverings due to the exclusion of stabilizing cables from the operation with a large roof weight.
Highlights
The interest in cable-stayed coverings, which is manifested by many researchers, designers and builders, is common and becoming an actual engineering problem to resolve
Scientists are considering issues related to: – a choice of constructive schemes of a cable-stayed covering; – study of the stress-strain state of cable-stayed systems; – methods of solving equations; – optimal design of cable-stayed systems; – dynamics of cable-stayed systems; – construction of cable-stayed coverings; The relevance of the study is determined by the use of a constructive scheme of coverage, which allows the use of a lightweight roof structure using modern composite materials
The purpose of the study is to analyze the cable-stayed coverings used in long-span public buildings, finding their optimal parameters and choosing an efficient and economical type of roof
Summary
The interest in cable-stayed coverings, which is manifested by many researchers, designers and builders, is common and becoming an actual engineering problem to resolve. This is helped by the economic advantages of coatings used, and by the development of calculation methods and design techniques. Scientists are considering issues related to: – a choice of constructive schemes of a cable-stayed covering; – study of the stress-strain state of cable-stayed systems; – methods of solving equations; – optimal design of cable-stayed systems; – dynamics of cable-stayed systems; – construction of cable-stayed coverings; The relevance of the study is determined by the use of a constructive scheme of coverage, which allows the use of a lightweight roof structure using modern composite materials. All parameters and recommendations for design and research can be found only in the works of scientists who are specialized in this field
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