A state-of-the-art review of progressive collapse research and guidelines for single-layer lattice shell structures

Kolakkattil, Ranjith; Tsavdaridis, Konstantinos Daniel; Sanjeevi, Arul Jayachandran

doi:10.1016/j.istruc.2023.104945

Cited by 5 publications

(2 citation statements)

References 96 publications

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“…Characterized by large spans, structural stability, cost-effective material use, and aesthetic qualities, this field has seen significant contributions from numerous researchers across various studies on latticed shell structures. Focusing on the issues of stability and collapse, several scholars have developed methodologies for calculating the distribution of internal forces and failure loads [1][2][3][4][5][6], along with collapse analysis techniques [7], by employing finite element analysis and considering both the unique properties of these structures and the nature of the applied loads. On this basis, Zhang et al [8] proceeded to calculate the dynamic failure loads of latticed shell structures by adhering to relevant standards and employing fitted calculation formulas.…”

Section: Introductionmentioning

confidence: 99%

Experimental Study on Small-Scale Shake Table Testing of Cable-Stiffened Single-Layer Spherical Latticed Shell

Zhao,

Zhang,

Chen

et al. 2024

Buildings

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The cable-stiffened single-layer latticed shell is an innovative structural design that achieves a perfect balance between lightweight and stability by combining cables and a latticed shell. However, the study on dynamic response and failure mechanism of cable-stiffened single-layer latticed shell under seismic action is still lacking. Therefore, small-scale shaking table tests of two kinds of single-layer spherical latticed shells are carried out; the dynamic response and failure mode of the two shells under sine wave earthquake are investigated by using time history analysis. The conclusions show that the introduction of the prestressed cable plays an important role in improving the seismic performance of the single-layer latticed shell, and the cable-stiffened single-layer latticed shell has better load capacity and seismic performance under earthquake action than the ordinary single-layer latticed shell structure.

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Section: Introductionmentioning

confidence: 99%

Experimental Study on Small-Scale Shake Table Testing of Cable-Stiffened Single-Layer Spherical Latticed Shell

Zhao,

Zhang,

Chen

et al. 2024

Buildings

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“…However, in applying lattice structures in engineering, the design optimization must align with the functional requirements of the parts [19]. Although there have been proposed optimization methods for gradient and hybrid TPMS lattice structures [20], considering that most lattice structure preparation involves support, further improvement is needed in researching the preparation and performance of these structures [21,22]. In recent years, the advancement of laser selective sintering polymer material technology has broadened the possibilities for unsupported printing, allowing the creation of various lattice structures.…”

Section: Introductionmentioning

confidence: 99%

The Laser Selective Sintering Controlled Forming of Flexible TPMS Structures

Xue,

Li,

Chen

et al. 2023

Materials

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Sports equipment crafted from flexible mechanical metamaterials offers advantages due to its lightweight, comfort, and energy absorption, enhancing athletes’ well-being and optimizing their competitive performance. The utilization of metamaterials in sports gear like insoles, protective equipment, and helmets has garnered increasing attention. In comparison to traditional truss and honeycomb metamaterials, the triply periodic minimal surface lattice structure stands out due to its parametric design capabilities, enabling controllable performance. Furthermore, the use of flexible materials empowers this structure to endure significant deformation while boasting a higher energy absorption capacity. Consequently, this study first introduces a parametric method based on the modeling equation of the triply periodic minimal surface structure and homogenization theory simulation. Experimental results demonstrate the efficacy of this method in designing triply periodic minimal surface lattice structures with a controllable and adjustable elastic modulus. Subsequently, the uniform flexible triply periodic minimal surface lattice structure is fabricated using laser selective sintering thermoplastic polyurethane technology. Compression tests and finite element simulations analyze the hyperelastic response characteristics, including the element type, deformation behavior, elastic modulus, and energy absorption performance, elucidating the stress–strain curve of the flexible lattice structure. Upon analyzing the compressive mechanical properties of the uniform flexible triply periodic minimal surface structure, it is evident that the structure’s geometric shape and volume fraction predominantly influence its mechanical properties. Consequently, we delve into the advantages of gradient and hybrid lattice structure designs concerning their elasticity, energy absorption, and shock absorption.

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