Field measurements of total wind forces on buildings

Rebecca Fagan, Douglas A. Smith, Kishor C. Mehta

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Overall loads on a structure typically are established in model-scale in a wind tunnel. Most of these model scale studies focus on high-rise structures. Overall loads on a low-rise building have been measured on the full-scale test structure in the natural wind environment at Texas Tech University's Wind Engineering Research Field Laboratory (WERFL). This facility consists of a 49 m (160 ft) high meteorological tower instrumented at six heights to measure wind flow characteristics, a rotatable 9.1 × 13.7 × 4.0 m (30 × 45 × 13 ft) high test building, and a data acquisition system housed in a 3.0 × 3.0 × 2.4 m (10 × 10 × 8 ft) data acquisition room. The fundamental features of the field site are described in Levitan and Mehta (1992a, 1992b). To measure the overall loads a triaxial load cell was installed at each corner of the building. These four load cells supported the entire weight of the building and measured two orthogonal horizontal shear forces and one vertical force. The triaxial load cells were custom designed for this experiment under a cooperative agreement with ISI in Round Rock, Texas. Each load cell was positioned under a wide flange section that was welded to the existing undercarriage adjacent each corner of the building. The top and bottom bearing surfaces consisted of machined plates (one embedded in the concrete foundation and one attached to the steel wide flange) to insure that the building was level during the experiments. The wheels of the building's rotation system were disengaged from the foundation to insure that the load cells measure all the wind-induced shear and vertical loads.

Original languageEnglish
Title of host publicationStructures - A Structural Engineering Odyssey, Structures 2001 - Proceedings of the 2001 Structures Congress and Exposition
DOIs
StatePublished - 2004
Event2001 Structures Congress and Exposition, Structures 2001 - Washington, DC, United States
Duration: May 21 2001May 23 2001

Publication series

NameStructures - A Structural Engineering Odyssey, Structures 2001 - Proceedings of the 2001 Structures Congress and Exposition
Volume109

Conference

Conference2001 Structures Congress and Exposition, Structures 2001
Country/TerritoryUnited States
CityWashington, DC
Period05/21/0105/23/01

Keywords

  • Buildings
  • Measurement
  • Wind forces
  • Wind tunnels

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