Quantifying robustness in tall timber buildings: A case study

Voulpiotis, Konstantinos; Schär, Styfen; Frangi, Andréa

doi:10.1016/j.engstruct.2022.114427

Cited by 16 publications

(9 citation statements)

References 38 publications

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“…In addition, the advances related to the structural robustness of timber high-rise buildings can also be highlighted, because of their capability to avoid disproportionate collapse after a catastrophic event. In this way, some key aspects for robust timber buildings can be emphasized: the design of joints and their performance against seismic loads; research based on numerical simulations with element removal scenarios, and the development of standards and construction codes [13,34,[284][285][286].…”

Section: Discussionmentioning

confidence: 99%

From Trees to Skyscrapers: Holistic Review of the Advances and Limitations of Multi-Storey Timber Buildings

et al. 2022

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Products derived from trees have been used by mankind for thousands of years, where timber has a long tradition as an ecological construction material. There is currently an increasing trend in multi-storey timber buildings, because of the projected growth in the demand for housing in urban areas between now and 2050, along with the urgent need for a more sustainable and productive construction industry. The construction of these buildings is now possible thanks to the new advances in architecture, engineering, and construction (AEC) and the new technological developments around timber construction. Its industrialization requirements imply a paradigm shift for the construction industry, which requires, among other aspects, the early and collaborative integration of stakeholders in its design and construction process. According to this, the objective of this review article is to determine the main advances and limitations related to the design and construction of multi-storey timber buildings, categorizing them in aspects such as sustainability, engineering and construction sciences, and collaborative design. The methodology of this article was based on the review of 266 articles published in Web of Science (WoS), as indexed scientific journals, between 2017 and mid-2022, performing a comparative and cooccurrence analysis of the contents. The results evidenced that 73% of the articles showed advances and limitations corresponding to the engineering and construction sciences category, 23% to sustainability, and the remaining 4% to collaborative design. The main advances in the development of multi-storey timber buildings are related to seismic analysis, connections design, fire performance, and fire design. While the main limitations are related to social sustainability, the results are not conclusive due to the low number of publications that support them.

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Section: Discussionmentioning

confidence: 99%

From Trees to Skyscrapers: Holistic Review of the Advances and Limitations of Multi-Storey Timber Buildings

et al. 2022

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“…One of the main drawbacks of previous models was the lack of an incremental damping formulation [31], which is also a general weakness for the most common damping implementations [32]. During a collapse, the connections and members may enter the nonlinear range and parts of the building may detach from the surviving structure.…”

Section: Incremental Dampingmentioning

confidence: 99%

“…Accounting for inelastic behaviour in the model would have increased the rotational capacity y and may increase the deformations of the members before failure. However, including ductility in the inelastic behaviour of the connections may not increase the robustness of the structure [31]. For edge or internal column damagescenarios, ductility in the connections could be beneficial.…”

Section: Connection Behaviourmentioning

confidence: 99%

A Nonlinear Dynamic Model for Collapse Investigations in Tall Timber Buildings - Preliminary Results

Cao,

Esser,

Glarner

et al. 2023

World Conference on Timber Engineering (WCTE 2023)

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Structural robustness of timber buildings is becoming increasingly relevant because of the increasing use of timber in the built environment. An important tool for assessing the robustness of any structure is an efficient numerical model capable of simulating progressive collapse. With such a model, physical tests can be limited to a few carefully selected validation tests and the robustness of a wide range of building typologies and geometries can be investigated efficiently. In this paper, a parametric nonlinear dynamic model for simulating progressive collapse of timber buildings is presented. Because of the parametric capabilities of the model, a vast range of buildings can be modelled. Moreover, the entirety of a collapse can be simulated with the recently developed mixed element method and the implementation of stress-and energy-based failure criteria for normal loading and impact loading. To demonstrate the capabilities of the model, a case study is presented on a symmetrical three-dimensional frame building with varying cross-sectional member dimensions. The model is an indispensable tool for investigating the robustness of timber buildings.

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“…As a result, tall timber buildings (TBs) have become viable and effective solution to meet sustainability objectives 1,3 . With the demand for innovation and resiliency, the research is now oriented towards the study of tall TBs in order to provide new proposal and solutions for their design and execution 4–6 . International codes are supporting this development, such as the Canadian National Building Code (NBC) 7 and 2021 International Building Code (IBC) 8 which now allow TBs up to 12 and 18 stories, respectively.…”

Section: Introductionmentioning

confidence: 99%

“…1,3 With the demand for innovation and resiliency, the research is now oriented towards the study of tall TBs in order to provide new proposal and solutions for their design and execution. [4][5][6] International codes are supporting this development, such as the Canadian National Building Code (NBC) 7 and 2021 International Building Code (IBC) 8 which now allow TBs up to 12 and 18 stories, respectively. One of the most challenging topics on tall TBs is their performance under strong wind and earthquake loads 6,9 and thus the development of new protection techniques and performance-based design methodologies suitable for the case of tall TBs.…”

Section: Introductionmentioning

confidence: 99%

Risk‐based optimization of concentrically braced tall timber buildings: Derivative free optimization algorithm

Laguardia,

Franchin,

Tesfamariam

2023

Earthq Engng Struct Dyn

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Mass timber materials are attractive alternatives for tall‐timber buildings (TBs), where the need for sustainability is apparent. Innovative structural systems and design methodologies are needed to fulfil performance requirements according to modern performance based approaches. This paper deals with the design and optimization of buckling restrained braces as earthquake protection system for tall‐TBs through risk‐based design procedure. This procedure controls the mean annual frequency of exceedance of several limit states evaluated through a SAC‐FEMA approach and using response spectrum linear analyses on linearized models for demand assessment. The features of the optimization procedure and the linearized models are shown through an application on a 20‐story mass‐TB located in a high seismic zone. The optimization is executed through a derivative‐free algorithm, the generalized pattern Search, adopting several solution strategies whose efficiency and effectiveness for this kind of applications are shown and discussed. Finally, the results are compared and validated through the execution of non‐linear analyses within a multiple stripe framework.

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Quantifying robustness in tall timber buildings: A case study

Cited by 16 publications

References 38 publications

From Trees to Skyscrapers: Holistic Review of the Advances and Limitations of Multi-Storey Timber Buildings

From Trees to Skyscrapers: Holistic Review of the Advances and Limitations of Multi-Storey Timber Buildings

A Nonlinear Dynamic Model for Collapse Investigations in Tall Timber Buildings - Preliminary Results

Risk‐based optimization of concentrically braced tall timber buildings: Derivative free optimization algorithm

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