Improving the progressive collapse resistance of long-span single-layer spatial grid structures

Wei, Jian-peng; Tian, Li-min; Hao, Jiping

doi:10.1016/j.conbuildmat.2018.03.126

Cited by 38 publications

(9 citation statements)

References 22 publications

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“…The rods are located on geodesic lines (the shortest lines connecting two points on a curved-based surface). Such arrangement allows achieving the optimal space filling and the most complete use of the structural strength of the materials [12]. The construction technology consists in the tiered-like erection of rod triangular cells of various types and sizes from bottom to top [13].…”

Section: Discussionmentioning

confidence: 99%

The use of modern polymer materials and wood in the construction of buildings in the form of geodesic domes

et al. 2021

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Spherical structures have been used by mankind since time immemorial in religious and public buildings, as well as in engineering structures. With the development of lightweight design and construction, non-standard architectural and planning solutions are used. More and more frequently they are being successfully implemented in private home projects and becoming a fact of everyday life. This may be explained by certain advantages of the form, as well as by the opportunities offered to the construction industry by the age of new materials and technologies for the works performance. The functional and architectural-structural design of round-shaped buildings in the form of geodesic domes will allow creating comfortable, cost-effective, energy-efficient and environmentally expedient conditions for human habitation taking into account the shortage of land areas and increased demand for alternative housing options due to the environmental situation around the world. This article analyzes the experience of building spherical buildings of different types and scales. The authors present the results of research carried out in the field of the geodesic dome design improvement with the use of wood and polymer materials.

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Section: Discussionmentioning

confidence: 99%

The use of modern polymer materials and wood in the construction of buildings in the form of geodesic domes

et al. 2021

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“…The vertical eccentricity E2 is proportional to the angle ϕ, being equivalent to the correction distance d. Figure 8 shows that the measurement of d2 is equal to 5t1 of the pipe wall thickness (flange) Several other collapses in 3D trusses have been observed in the world. However, the ranges of space truss structures have been reevaluated and some have been strengthened in recent years [61][62][63][64][65][66][67][68][69][70], thanks to increasingly robust computer systems and commercial Finite Element Method (FEM) programs and complex nonlinear analyses [10,30,56,[71][72][73][74][75][76][77][78][79][80][81][82].…”

Section: Correction Of Eccentricity In Typical Connectionsmentioning

confidence: 99%

Experimental Analysis of Space Trusses Using Spacers of Concrete with Steel Fiber and Sisal Fiber

Silva

Bezerra

et al. 2020

Materials

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Space trusses are structural systems, generally made of tubes, used worldwide because of their advantages in covering long-span roofs. In addition to having a low cost, the truss weight is relatively reduced. The load capacity of these structures depends also on the strength of their node connection. Connections made with the superposition of flattened tube ends trespassed by one bolt are, generally, known as typical nodes. They are inexpensive but present eccentricities that reduce significantly the strength of such space trusses. To increase the truss load capacity, this research presents the results of an experimental program to reduce the eccentricities of the typical nodes. This reduction is done with a new type of spacer made of encapsulated concrete with steel fiber or sisal fiber. The experimental tests showed that the trusses with typical nodes collapsed under reduced load by local failure due to high distortions at the nodes. The trusses with encapsulated concrete spacer showed good results, with an increase in collapse load of 36% and failure by buckling bars.

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“…The collapses of long-span spatial structures, especially for the spatial truss structures caused by member failure, may lead to more losses. The study of collapse behavior analysis has attracted more attention [18][19][20].…”

Section: Introductionmentioning

confidence: 99%

Robustness Analysis and Important Element Evaluation Method of Truss Structures

Feng

Sun

et al. 2021

Buildings

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Robustness and vulnerability are important evaluation criteria for structural safety to improve progressive collapse resistance. Modeling rapid evaluation on important elements in the conceptual analysis stage is an essential and efficient way to ensure the robustness of a design. This paper proposes an evaluation method for element importance by using structural strain energy, which can reflect the influence of geometric topology and external load distribution on the structural safety status simultaneously. Three simple planar trusses are chosen to clarify the proposed method. Moreover, the influences of geometric topology, boundary condition, stiffness distribution and load distribution on the element importance are investigated. This evaluation method also extends to the two spatial truss structures, regular quadrangular pyramid grid structures and chessboard-shaped pyramid grid structures. The distribution characteristics of important elements are obtained. This work defines the element importance distribution law of typical structures. It provides a method for rapid robustness analysis of general truss structures, which can be effectively integrated into the existing analysis platform.

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Improving the progressive collapse resistance of long-span single-layer spatial grid structures

Cited by 38 publications

References 22 publications

The use of modern polymer materials and wood in the construction of buildings in the form of geodesic domes

The use of modern polymer materials and wood in the construction of buildings in the form of geodesic domes

Experimental Analysis of Space Trusses Using Spacers of Concrete with Steel Fiber and Sisal Fiber

Robustness Analysis and Important Element Evaluation Method of Truss Structures

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