The Ongreening Pavilion

Harding, J.E.; Pearson, Will; Lewis, H. E.; Melville, Stephen

doi:10.1007/978-3-319-11418-7_19

Cited by 12 publications

(12 citation statements)

References 3 publications

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“…Although focus was only given in here on two-way grid shells with constant member's length, the described formulations can be applied to any kind of actively bent structural system involving the use of initially straight or naturally curved beams/rods, as for instance, geodesic rib shells [37,38], interlaced space structures [39] or hybrid systems, such as tension structures with integrated actively bent elements [40].…”

Section: Discussionmentioning

confidence: 99%

Optimization of cross-section of actively bent grid shells with strength and geometric compatibility constraints

D’Amico

Kermani

Zhang

et al. 2015

Computers & Structures

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Section: Discussionmentioning

confidence: 99%

Optimization of cross-section of actively bent grid shells with strength and geometric compatibility constraints

D’Amico

Kermani

Zhang

et al. 2015

Computers & Structures

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“…together with the constitutive relation between axial force and centreline strain N EA = ε (5) and the definition of the axial strain…”

Section: Euler-bernoulli Theorymentioning

confidence: 99%

“…Since the construction of the Mannheim Multihalle 1 designed by Frei Otto, which is a pioneering modern application of the active bending principle in architecture, a number of dome-shaped grid-shells have been designed and built. Many of them have been designed as temporary or experimental structures as reported by Douthe et al, 2 Nicholas et al, 3 Pone et al 4 or Harding et al 5 The basic principle of grid-shells is the use of very flexible members which are joined and bent into a target shape and stabilized by fixing the ground supports in a convenient way. The result is a lightweight shell-like structure which is stiff enough due to its shape, but whose members are light and easy to manipulate during construction.…”

Section: Introductionmentioning

confidence: 99%

Mechanical models in computational form finding of bending-active structures

Lázaro

Bessini

Monleón

2018

International Journal of Space Structures

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This article reviews the different aspects involved in computational form finding of bending-active structures based on the dynamic relaxation technique. Dynamic relaxation has been applied to form-finding problems of bending-active structures in a number of references. Due to the complex nature of large spatial deformations of flexible beams, the implementation of suitable mechanical beam models in the dynamic relaxation algorithm is a non-trivial task. Type of discretization and underlying beam theory have been identified as key aspects for numerical implementations. References can be classified into two groups depending on the selected discretization: finite-difference-like and finite-element-like. The first group includes 3-and 4-degree-of-freedom implementations based on increasingly complex beam models. The second gathers 6-degree-of-freedom discretizations based on co-rotational three-dimensional Kirchhoff-Love beam elements and geometrically exact Reissner-Simo beam elements. After reviewing and comparing implementation details, the advantages and drawbacks of each group have been discussed, and open aspects for future work have been pointed out.

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“…aware-driven-designs examples of using bending as a self-forming process for the shape definition of roof structures (for both temporary [9,10] or permanent use [11,12,13]) are fairly recent. Particularly, in the last few years, an increasing number of experimental pavilions [14,15,16,17,18] have been built around the world, by academics/professionals, in (both) Architecture/Structural Engineering, mostly as a means of drawing attention on such a 'new' method of building 'through' bending. For the design of such actively bent systems, shape and material aspects are tightly connected through the particular construction (bending) process, meaning that: physical and/or numerical models are required to be used during the design process (see Figures 1,2) in order to take the structural mechanical behaviour of the system into account while defining the architectural shape [19].…”

Section: Introductionmentioning

confidence: 99%

A finite-difference formulation of elastic rod for the design of actively bent structures

D’Amico

Zhang

Kermani

2016

Engineering Structures

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A discrete formulation of elastic rod has been tailored for the particular design task of geometric modelling, form finding and analysis of actively bent structural systems. The rod element is fully described by using vector based quantities, hence making it easy to implement and be suitable for explicit resolution methods such as the Dynamic Relaxation (DR). From this point of view, the model under consideration aims to provide a natural enhancement, of existing DR schemes of elastic rods, primarily formulated for analysis/design of stressed spline structures with isotropic cross-section, whilst, the proposed formulation allows for the general case of initially straight rods with anisotropic cross-section and torsional stiffness effects, to be taken into consideration. In order to avoid numerical conditioning problems, the method adopts a reduced Degrees of Freedom approach, however, the design limitations usually involved with such an approach, are 'removed' by adopting the Bishop theory of framed curves, hence making it possible to reduce to only three (translations) the Degrees of Freedom to be explicitly computed by numerical integration of the corresponding acceleration terms.

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The Ongreening Pavilion

Cited by 12 publications

References 3 publications

Optimization of cross-section of actively bent grid shells with strength and geometric compatibility constraints

Optimization of cross-section of actively bent grid shells with strength and geometric compatibility constraints

Mechanical models in computational form finding of bending-active structures

A finite-difference formulation of elastic rod for the design of actively bent structures

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