Table 5 - uploaded by Emad El-Dardiry
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This paper investigates the structural response of wide span structures where the primary structural system is cable-stayed roof, and aims at optimizing the design of such structures. Finite element analysis is carried out using commercial software taking into consideration the nonlinear formulation of cables. In order to check the accuracy and cap...
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Context 1
... was carried out for the sections of the main truss only, so as to reach the least possible weight of the structure. The optimized weights are given in Table 5, compared to the corresponding weights of the existing structure. It is observed that the optimization procedure managed to decrease the structure total weight by about 16.88 ton. ...
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Introduction about the structural analysis, Load, reactions, structural analysis of beams, frames and trusses and the influence line
Structural Analysis is a branch which includes in the assurance of conduct of structures so as to foresee the reactions of real structures, for example, buildings, trusses, bridges and so on. Under the enhancement of expected loading and outer condition amid the administration life of structure. Structural Analysis is a process in which behaviour o...
Citations
... A significant amount of study has been done to research a stress-strain state (SSS) of cable-stayed structures. The design of wide-span cable-stayed structures is justified in [1]. In article [2], a calculation of a ceiling for a unit load in the joints of the bottom boom is performed. ...
... In the works devoted to research of steel-reinforced concrete cable-stayed structures, the issue of using and developing calculating composite stay for methods ropes with fiber structure is not considered in works [1][2][3][4][5]. ...
The purpose of research is to justify a calculation method for a stay rope of composite fiber structure with a breakage in fiber continuity. Research methodology is in constructing and solving a deformation model of a composite fiber stay rope with continuity breakage of one of its fibers. The calculation method of a stress-strain state of a stay rope of composite fiber structure considering the breakage of one of its fibers is established. The scientific novelty of research is in determining that the length of manifestation of a local disturbance of a stress-strain state of composite stay rope is proportional to a square root of a ratio of tensile modulus of a reinforcing element material and shear modulus of an elastic material that connects them. The practical value of the research is in that the calculation method allows reasonable prediction of a tractive capacity loss of a stay rope as a result of breakage of any of its reinforcing elements. The known value of residual tractive capacity allows reasonable selection of a safety margin for a stay rope, which ensures a sufficient level of reliability of a cable-stayed bridge.
... rking stress method, which results in economical design of truss design. Objective of this study is to analyze and design Pratt truss of 30m span with Limit State Method (LSM) and Working Stress Method (WSM) of design of steel structures. Pratt truss model is analyzed in STAAD Pro. The truss is analyzed for the dead load, live load and wind loads. Gehan A. Hamdy et. al. (2018) This study investigates the structural response of wide span structures where the primary structural system is cable-stayed roof, and aims at optimizing the design of such structures. A numerical study is conducted where four different systems are suggested for the same structure: plane truss, space truss, cable-stayed plane truss and c ...
Article purpose is in establishing stress-strain state features of a flat composite stay rope constructed of separate periodically connected elastomer-cable stripes of considerable length. Influence mechanism of continuity breakages of stripes along a stay rope length on the area size of local disturbance of a stress-strain state from local influence on a stay rope is established. The scientific novelty is in establishing that the absence of mechanical connection of stripes in a rope constructed of glued elastomer-cable stripes due to an increase in length of an area of manifestation of local disturbances affects both the stress-strain state of a stay rope in an area of stripe connection absence and beyond it, including in the event of a continuity breakage of a limited amount of cables. Practical significance of the article is in a possibility of stay rope production by periodically connecting elastomer-cable stripes in one plane, which also allows the production of ropes of greater strength on existing equipment without significant modernization.
