Seismic performance of single-storey light timber-framed buildings braced by gypsum plasterboards considering rigidity of ceiling diaphragms

Ma, Zhi-Sai; Li, Minghao; Liu, Angela; Wang, Jingfeng; Zhou, Lina; Dong, Wenchen

doi:10.1016/j.istruc.2022.05.076

Cited by 5 publications

(2 citation statements)

References 9 publications

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“…Figure 3 shows a typical configuration of 2.4m long singlelined plasterboard bracing wall [20]. Typical load-drift hysteretic curves of these bracing walls are shown in Figure 4.…”

Section: Modelling Techniques Of Ltf Walls and Ceiling Diaphragmsmentioning

confidence: 99%

Seismic effects of bracing irregularity of light timber-framed buildings

Liu

Li²

2023

BNZSEE

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Most residential buildings in New Zealand are low-rise light timber-framed (LTF) buildings, constructed according to a prescriptive standard – NZS 3604:2011 Timber-framed buildings. NZS 3604:2011 tabulates the seismic demand and also specifies the test procedure for evaluating the seismic resistance of proprietary LTF walls, which are often plasterboard walls. Designers need to ensure the provided total seismic bracing capacity is at least equal to the total seismic bracing demand, provided that bracing arrangements satisfy the specified irregularity limits. The irregularity limits of bracing arrangements in NZS3604:2011 were established based on engineering rules of thumb rather than rigorous scientific evidence. Earthquake damage observed in the 2010/11 Canterbury earthquake sequence demonstrated that simple regular LTF houses performed well while irregular houses often had significant damage that was uneconomical to repair. This suggested that the irregularity of LTF buildings was an important factor responsible for the exacerbated earthquake damage. To quantify seismic effects of permissible irregularities in NZS 3604:2011 and provide scientific evidence for elaborating irregularity limits in NZS 3604:2011, three single storey LTF buildings with varying degrees of permissible plan irregularities were designed and their seismic performance was studied by conducting three-dimensional non-linear push-over analyses. For the non-linear push-over analyses, the in-plane behaviour of LTF walls and ceiling diaphragms were modelled using the models, developed based on NZ practice, as reported in previous research. The study revealed that permissible irregular bracing arrangements in NZS 3604:2011 could amplify lateral deflections significantly, in comparison with the regular counterparts. As a result, irregular LTF buildings within the scope of NZS 3604:2011 could be susceptible to damage due to excessive deformations in earthquakes and this suggests that the irregularity limits in current NZS 3604:2011 be reviewed and tightened.

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“…Figure 3 shows a typical configuration of 2.4m long singlelined plasterboard bracing wall [20]. Typical load-drift hysteretic curves of these bracing walls are shown in Figure 4.…”

Section: Modelling Techniques Of Ltf Walls and Ceiling Diaphragmsmentioning

confidence: 99%

Seismic effects of bracing irregularity of light timber-framed buildings

Liu

Li²

2023

BNZSEE

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“…Ma at al. [29] provided insights on how the in-plane rigidity of ceiling diaphragms could affect the overall seismic performance of gypsum-plasterboard-braced light timber-framed buildings. Abdoli et al [30] investigated the effects of the fastener type, end distance, layer arrangement, and panel strength direction on the lateral resistance of nailed and screwed single shear lap joints in cross-laminated timber panels.…”

Section: Introductionmentioning

confidence: 99%

Factors Influencing Choice of Wooden Frames for Construction of Multi-Story Buildings in Sweden

2023

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Construction of buildings with wooden frames higher than two stories has been permitted in Sweden since 1994. As construction of multi-story buildings with wooden frames is relatively new, people in the construction industry are more likely to construct these buildings with concrete frames. The current research evaluates the factors influencing the choice of wooden frames for construction of multi-story buildings in Sweden. The purpose of this study is to explain which advantages and disadvantages construction companies in Sweden consider with wooden construction and to highlight the factors for why multi-story buildings are built with wood to a lesser extent than with other materials. The main goal is to investigate what factors or assumptions construction companies base their decisions on, and whether experience and competence in wooden frames for construction of multi-story buildings are considered in short supply in Sweden today. The chosen method for this research is a descriptive survey study with a qualitative and quantitative approach. The survey is based on respondents from five leading building companies in Sweden with regard to the companies’ revenue. The respondents had either previous experience in constructing multi-story buildings with wooden frames, experienced respondents (ERs), or no experience, unexperienced respondents (UERs). 63% of the respondents were ERs, while 37% of them were UERs. It is resulted that the respondents think there is a lack of competence and experience in wooden frames for construction of multi-story buildings in Sweden. Factors that have the greatest impact on decisions to construct with wooden frames are positive environmental and climatic aspects as well as production advantages. Factors that are considered as major obstacles to construct with wooden frames are cost, acoustics, and moisture problems.

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Seismic behavior of the assembled walls using uniform precast hollow-core concrete panels restrained by cast-in-place boundary elements in single-story buildings

Sun

Zhang³

et al. 2023

Structures

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Seismic performance of single-storey light timber-framed buildings braced by gypsum plasterboards considering rigidity of ceiling diaphragms

Cited by 5 publications

References 9 publications

Seismic effects of bracing irregularity of light timber-framed buildings

Seismic effects of bracing irregularity of light timber-framed buildings

Factors Influencing Choice of Wooden Frames for Construction of Multi-Story Buildings in Sweden

Seismic behavior of the assembled walls using uniform precast hollow-core concrete panels restrained by cast-in-place boundary elements in single-story buildings

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