oq-gem

Glossary for gem taxonomy

Authors: Luke Allen, Andrew Charleson, Svetlana Brzev, and Charles Scawthorn

This online Glossary explains around 400 terms contained in the GEM Building Taxonomy v 2.0 and nearly 700 images.

The terms have been listed in alphabetical and numerical order. Text description of each term is accompanied by illustrations (photos and/or drawings) where possible.

We welcome contributions in the form of photographs or images, illustrating glossary terms. If you have any questions you can also contact us at buildingtaxonomy@globalquakemodel.org


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Category: terms
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The roof structure is of earthen construction.

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The building is used for agriculture, but it is not known what type of agricultural use.

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Any pre-school educational centre. E.g. Child care centre, crèche.

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There are connections that provide vertical attachment of roof to walls in order to restrain roof from wind lift-off.

RTDP_FEMAP804_1

A diagram showing roof-wall tie-down connections for resisting wind loads (FEMA P-804, 2010)

RTDP_WHE stonemasonry 4-7

An example of a retrofit bond beam with roof tie-down anchor bolts ("J" bolts) (Improving Seismic Performance of Stone Masonry Buildings, Bothara and Brzev, EERI, 2011).

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Metal beams or trusses supporting light-weight roofing system e.g. corrugated metal or plywood sheets over steel rafters or purlins.

RME1_India_Brzev_1

Curved steel beams supporting corrugated steel sheet roofing, Mumbai, India (S. Brzev)

Steel trusses (open web steel joists) supporting corrugated steel roofing 1, Canada (S. Brzev)

Steel trusses (open web steel joists) supporting corrugated steel roofing, Canada (S. Brzev)

Steel trusses (open web steel joists) supporting corrugated steel roofing 2, Canada (S. Brzev)

Detail of steel trusses (open web steel joists) supporting corrugated steel roofing, Canada (S. Brzev)

  1. Cast-in-place beam-supported reinforced concrete roof [RC2]
  2. College/university, research facilities and/or labs [EDU4]
  3. Equipped with base isolation and/or energy dissipation devices [DBD]
  4. Rectangular, solid [PLFR]

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