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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Steel sections that have been hot rolled or fabricated from plates welded together and used as primary lateral load-resisting structure, welded or bolted together.

SR_Canada_Brzev_1

Hot-rolled steel sections at a construction site: I-shaped (called W sections in North America), channel sections (called C sections in North America, etc. (Canada - S. Brzev)

SR_Canada_Brzev_2

Hot-rolled hollow steel sections (HSS sections), Canada (S. Brzev)

SR_NewZealand_Charleson_1

Steel building construction, hot-rolled steel members, Wellington, New Zealand (A. Charleson)

SR_USA_Brzev_1

Steel building under construction, hot-rolled steel members, California (S. Brzev)

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The floor structure material is known, but they do not fit within any of the definitions in this table.

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Wood frame members of large cross-sections are used. They may form some type of frame or a Post and Beam system. Includes infilled heavy wood frames such as Half-wooded buildings.

Heavy Timber 1.jpg

 

 

 

 

 

Heavy wood, New Zealand (A. Charleson)

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The approximate height of the ground floor above grade can be determined by the surveyor where the exact height is not clear from survey or drawing.
Units: metres

Example: HFAPP:0.5 (approximately 0.5 m)

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The roof is pitched (sloped) on all sides.

RSH3_Indonesia_Bothara_1

Pitched and hipped roof, Padang, Indonesia (J. Bothara)

RSH3_India_Rawal_1

Pitched and hipped roof, Assam, India (People in Centre)

RSH3_Indonesia_Bothara_1

Pitched and hipped roof, Indonesia (J. Bothara)

  1. No elevated or suspended floor material [FN]
  2. Other plan irregularity [IRHO]
  3. Concrete
  4. Glass exterior walls [EWG]

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