Joints are one of the main problems concerning the design of bamboo structures. This paper proposes a classification of the main joints applied in full-culm bamboo structures according to their constructive behavior, subdivided into semi-rigid and flexible joi...

A meshless and non-parametric approach is proposed for shape design of curved surfaces consisting of approximately developable surface patches. A local Gauss map is defined at the grid point of a surface, and its developability is evaluated based on the area o...

Exploring a wide range of relevant design options from the outset is crucial for every sound conceptual design process. Optimization techniques are generally employed to generate well-performing structural design options. However, focusing only on performative...

Timber, being a versatile and sustainable material, has been used for residential and public buildings throughout history. In recent years, advancements in engineering and construction technology have resulted in the development of innovative timber spatial st...

The aluminum alloy reticulated shell structure of Nanjing Niushou Mountain, the largest single-layer aluminum alloy reticulated shell in Asia, is 227m long from south to north, 130m spanning from east to west. In the design process, the aluminum alloy reticula...

Progressive collapse accidents of single-layer latticed domes seriously threaten public safety. The progressive collapse-resisting capacity (PCRC) is gradually becoming an essential requirement in the design of spatial structures. Currently, the joint system u...

Inspired by the traditional notched planar reciprocal frame (RF) that uses short elements to build load-bearing structures with a span longer than individual elements, we search for an innovative way of using salvaged timber for building RFs specifically conne...

Stress flows in a predictable pattern, and structural optimization is achieved by matching the natural flow of stress with the structural shape. The geometry of the parabolic shape simulates the natural flow of stress, and is therefore highly efficient in the ...

Tensegrity structures are typically composed of bars and cables held together in a state of self-stress. This introduces a challenge regarding the practical use of tensegrity structures, as many structures in civil engineering, such as bridge decks and roof co...

Recent developments in applied algebraic topology can simplify and extend results in graphic statics – the analysis of equilibrium forces, dual diagrams, and more. The techniques introduced here are inspired by recent developments in cellular cosheaves and the...

NURBS can create free-form shells by specifying a number of control points and their weights. However, it is challenging to create a form that strictly passes through all the specified control points even with increased weights. This paper proposes an initial-...

The transverse out-of-plane response of the RC moment frame on the arena floor damaged a school gymnasium that was expected to function as a natural disaster shelter. It was composed of heavy RC substructure and a light steel roof, which partially collapsed, r...

With the development of technology and the materials used, shell structures have developed into more complex forms. This article is a comparison between contemporary and historical shell structures. The change is an effect of the evolution in the design proces...

This paper presents an optimization method for incorporating discarded naturally curved wood logs onto a freeform gridshell with a predefined topology. Though still little explored, the research field of reusing structural elements is experiencing increasing a...

In this study, we propose a form-finding method for the free-formed reticulated shell structure, considering both structural performance and regularization of node connection patterns. The coordinates of the nodes of the reticulated shells are represented on t...

This facility was used for the Tokyo 2020 Olympic and Paralympic Games. It is a multi-purpose arena with up to 11,000 seats, and the roof covers the large space of the auditorium and stadium column-free. In this paper, the structural design of the main arena i...

The inner concave cable-arch structures with V-shape web struts were classified, and single-tensioning construction method and multiple-tensioning construction method for continuous cable-arch structures were described. The optimization of pretension for multi...

Focusing on the free-form reticulated shells with semi-rigid joints, a stability study is conducted in this paper. Firstly, the gradient-based optimization and genetic optimization are conducted respectively, by which the local optimal shell and the global she...

additional-mass-type vibration-control devices, especially TMDs, and confirm their control performance under seismic loadings by both analytical and experimental methods. Firstly, to effectively control spatial structures that have different vibration properti...

The authors propose a new clamped joint system that can easily join wooden members together and a wooden spatial structure that utilizes this system. The proposed system can clamp wood members without the need for special joint machining. Two types of clamps h...