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


Contribute GEM Taxonomy Tool
A
B
C
D
E
F
G
H
I
L
M
N
O
P
R
S
T
U
V
W
X
Y
1
2
3
5

Roof-wall diaphragm connection present [RWCP]

Details
Category: terms
Hits: 1338

There are connections between the roof diaphragm and the walls, capable of transferring in-plane forces from roof to wall and restraining outward displacements of walls.

RWCP_-_FEMA_1

Example of retrofit method to improve strength of wall-to-roof connections of a steel deck diaphragm to a concrete or masonry wall; note that N refers to New and E refers to existing components (FEMA 172, 1992)

RWCP_Allen&Brzev_1

Diagram showing a roof-wall connection for wood diaphragm and masonry wall, and parapet bracing.

RWCP_Seattle_USA_Brzev_1

Roof-wall diaphragm connection in a retrofitted building in Seattle, USA achieved through steel anchors (S. Brzev)

RWCP_Seattle_USA_Brzev_2

A typical wall anchor, consisting of a steel rod and an exterior steel plate exposed at the exterior; note that anchor plates are of different shapes and sizes (S. Brzev)