Database-assisted design methodology to predict wind-induced structural behavior of a light-framed wood building

Mensah, Akwasi F.; Datin, Peter L.; Prevatt, David O.; Gupta, Rakesh; Lindt, John W. van de

doi:10.1016/j.engstruct.2010.11.028

Cited by 27 publications

(10 citation statements)

References 11 publications

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“…Recent studies reported some interesting results related to load sharing on roof-to-wall (Kopp et al, 2011;Mensah et al, 2011) and wall-to-foundation connections (Mensah et al, 2011). In both studies, only a limited portion of the roof or foundation was instrumented with load cells and observations were focused on adjacent trusses and frames.…”

Section: Wind Load Pathsmentioning

confidence: 99%

Wind load transfer mechanisms on a low wood building using full-scale load data

Zisis

Stathopoulos

2012

Journal of Wind Engineering and Industrial Aerodynamics

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a b s t r a c tThe wind-induced response of low-rise wood buildings has been evaluated by monitoring a specially instrumented test building exposed to real wind action. The field facilities included a state-of-the-art data acquisition system which collected wind, pressure and force data. In addition to the field monitoring, a 1:200 scaled model of the test building was tested in the wind tunnel and the envelope wind pressures were estimated for various terrain exposures. The wind-induced pressures obtained from both the full-scale and wind tunnel experiments were incorporated in the finite element model of the test building and its response was numerically derived.Vast amounts of experimental data were generated during the long-term monitoring of the test building. These data were used to successfully verify the simulation approaches in terms of both wind-induced pressures and structural forces. Some limited discrepancies were observed in the peak pressure coefficients for locations close to the roof ridge and corners. The field acquired force data revealed that the majority of the wind uplift force is supported by the two side walls. Moreover, it was experimentally verified that the wind-induced load was attenuated as it was transferred through the buildings' structural system. This attenuation was estimated to be at least 17%, as far as the total foundation uplift force is concerned, and reached the 28% for certain approaching wind directions.

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Section: Wind Load Pathsmentioning

confidence: 99%

Wind load transfer mechanisms on a low wood building using full-scale load data

Zisis

Stathopoulos

2012

Journal of Wind Engineering and Industrial Aerodynamics

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“…This is indicated by the parameter, d, which represents these effects including changing stiffness and load sharing as the connection, and the adjacent ones, displace and accumulate damage. 1 Influence functions for wood frame structures are not generally known (notwithstanding the recent study by Mensaha et al, 2011), even for the case of d¼0 (i.e., no displacements), let alone when there is damage in the individual connections. Consequently, the approach usually taken for design is to assign each connection its geometric tributary area, within which I(x,y,z,d)¼1.…”

Section: Wind Effects On Residential Structuresmentioning

confidence: 98%

Full-scale testing of low-rise, residential buildings with realistic wind loads

Kopp

Morrison

Henderson

2012

Journal of Wind Engineering and Industrial Aerodynamics

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“…The influence function needs to be measured by applying a unit load on the roof structure or finite element model to calculate the influence coefficient of RTWCs. The RTWCs due to wind loads can be obtained by combining the roof wind pressure measurement results and RTWCs influence coefficients (e.g., Mensah et al, 2011;Feng and Chen, 2018). In this test, the first approach is adopted.…”

Section: Introductionmentioning

confidence: 99%

Experimental Assessment of Wind Loads on Roof-to-Wall Connections for Residential Buildings

Feng

Chowdhury

Elawady

et al. 2020

Front. Built Environ.

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Wind hazards are one of the most disastrous events that frequently occur in the United States. Hurricane Irma, which hit the southeast coast in 2017, left a majority of damage concentrated on low-rise buildings and wooden construction in its wake. As revealed by recent hurricane damage reconnaissance, hardware-type roof-to-wall connections are especially vulnerable to high wind suction. There is only limited research on the assessment of wind loads on these roof-to-wall connections, which are important components of the wind load path. Hence, it is essential to have realistic estimates of wind effects on these connections to ensure a safe design. To fill this fundamental knowledge gap, an extensive large-scale aerodynamic testing study has been recently conducted at the NSF-Natural Hazard Engineering Research Infrastructure (NHERI) Wall of Wind (WOW) Experimental Facility (EF) to investigate wind actions resulting from simulated hurricane force winds. A wooden gable roof building of a large length scale of 1:4 was adopted for this study. Seven trusses were used to construct the roof and were connected to the top plate of the side walls. Load cells were mounted at the roof-to-wall connection (RTWC) level to measure the effective net wind-induced forces. The model was tested under different wind directions varying from 0 to 360 • with an increment of 5 • under varying wind speeds. In addition, three different configurations, i.e., one enclosed and two partially enclosed, were considered to assess different internal pressure scenarios that affect the net loading on the roof-to-wall connections and the overall roof system. The RTWC force coefficients distribution along the entire roof was obtained. The results were compared to force coefficients recommended by ASCE 7-16 version for the cases of Main Wind-Force Resisting System (MWFRS) and Component and Cladding (C&C). The experimental results were in between MWFRS and C&C values based on the ASCE provisions in general. However, for partially enclosed case, some values slightly exceeded those based on the ASCE C&C provisions. Also, the overall uplift on the roof was found to be dependent on the location of the opening (i.e., opening on long side vs. short side of the building).

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Database-assisted design methodology to predict wind-induced structural behavior of a light-framed wood building

Cited by 27 publications

References 11 publications

Wind load transfer mechanisms on a low wood building using full-scale load data

Wind load transfer mechanisms on a low wood building using full-scale load data

Full-scale testing of low-rise, residential buildings with realistic wind loads

Experimental Assessment of Wind Loads on Roof-to-Wall Connections for Residential Buildings

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