Building Glossary

8/6/2019 Building Glossary

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Anchor bolt Also called "I-bolt," or "L-bolt," depending on its shape; used to con-nect sill plates to footings. The term "bolt" technically means a headed fas-tener; thus, "anchor bolt" is not entirely accurate to describe typical sill an-

chors.

Anchor rod Used in this book to describe hardware that connects a tie-down to thef ot ng. " nchor r d" is a m r t chnically ac ur t t rm t des r be a

threaded fastener that connects a building's superstructure to the footing

(seeentry above).,

APA F rm r y T e Am r can Plywood Assocaton; changed it nam t

" P A - T e E ng in ee r d W o d A ss oc ia t on .

Boundary An edge of a diaphragm; typically along eave blocking and the trusses orrafters in line with the gable-end walls for a roof diaphragm (not the fasciaor barge rafters), the end and rim (band) joists for a floor diaphragm andt e end- ost and t p and bot m m m er of a shear wall.

Chor T e t p or bot m m m er of a t ss; als us d t descr be t e m m er

along a diaphragm boundary.

Collect r A st ct r l m m ~r t at connect a diaphr gm t a shear wall in or er t

gather lateral forces spread throughout the diaphragm and deliver them to

the shear wall.

Cr pple wall A shor wood- m d wall built on t p of t e f undat on t suppor t e

first-floor level above.

Diaphr gm A lar e ar a of sheat ing such as a f oor r of or s ear wall ( iaphr gm

m y be ver cal as well as hor zont l) in or er t f nc on as a diaphr gm

all edges of t e sheat ed ar a m st have boundar m m er , and t e

sheat ing panels m st connect t t es m m er and t f mng m m er

t t nsf r f r es acr ss t e panel joint .

Double plat Two hor zont l f mng m mer at t e t p of a wall, t pically spliced or

lapped t give cont nuit or te wall s ct ons t get er .

Drag strut Essentially the same as a collector; may have slightly varying meanings,such as a collect r t at only f nct ons in com r s ion.

Drag tie Essentially'the same as a drag strut or collector, with the added possibilityt at it m y r f r t a m m er t at only t nsmt f r f m one par of t e

st ct r t anot er par som dist nce away wit out collec ng any addi-

. tional force along the way.

Edge When referring to a shear panel, a panel has four edges-two of theseedges. are "ends" and two are" sides."

ER Evaluaton R epor r por put out by t e Evaluat on S er ice.

ES Evaluat on Ser ice- n or anizaton t at cer f es m t r als m et t e

r quir m nt of t e var ous building c des. ES r por det il ins llat on r -

q ui r mn t a nd l im t to ns f r m ny m nu f ct r d p rd uc .

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WOOD-FRAMEDHEARWALLCONSTRUCTION 107

GLOSSARY



GO S A RY

Header

Hold-down

IBC

ICBO

ICC

ISANTA

IRC

King stud

Lateral

Mudsill

A hor zont l m m er t at spans acr ss an opening in a wall ( ic lly over

a door or window).

See " e- own" - device used t keep t e end of a s ear wall f m lif ng

up. .

International Building Code; published by the International Code Council,

Inc.~_and available for adoption by government jurisdictions internationally.I t r at onal Conf r nce of Building O cials; publisher of t e Unif rm

Building Code.

International Code Council; publisher of the International Codes; ncludingte It ratonal Building Code and te It ratonal Resdental Code.

T e I tr atonal St ple, Nail and T ol Associat on.

I t r at onal R es ident al C ode; p ubli shed by t e I CC.

A st d t at ext nds up t t e t p plat of a wall and c nnec t t e end of a

header.

Describing orces hat act n a horizontal direction; usually causedby windor earthquakes.

As used in t is g uide, sam as sill.

National Evaluation Report issued by the National Evaluation ~rvice (a

certification organization that worked with the major building codeorganizations) certifying the performance of power-driven nails and staples.

Oriented Strand Board (sometimes called "wafer-board" or" ake- oar " ar cleboar is com let ly dif r nt f m asB) a t pe of

wood st ct r l panel com osed of wide, t in waf r of wood t at ar

bonded together with adhesive under high pressure and heat.

A wall or sect on of wall t at does not ext nd t e f ll height f m t e foor

to the ceiling.

Sout er Building Code Congr ss I t r atonal, I c

Forces hat act in opposite directions and tend to cause struCtural membersto slip past each other.

U s ed i n t i s g ui d e t m a n st C t r l p l yw oo d o r O B p an el s a pp l ie d t

NER-272

OSH

Pony wall

SBCCI

Shear

Sheathing

Sill

Sole plate

Stemwall

Stud

Tie-down

framing members.

A hor zont l f mng m m er at t e base of a wall, t ically at c ed

directly to a concrete or masonry footing.

A hor zont l f mng m m er at t e base of a wall, t pic lly when at c ed

to a wood-framed floor platform below (see also "Sill").

A concr t or m sonr wall built on t p a f ot ng and ext nding above

the ground to support wood framing.

A ve r ca l wa l l f mn g mme r

A device used t keep t e end of a shear wall f m lif ng up; als c lled

"hold-down."

WOOD-FRAMED



T mm r st d A st d adjacent t an opening in a wall. T mm r st ds suppor t e header

over an opening in a wall and d o not ext nd all t e way up t t e t p plat .

T p plat T e hor zont l f mng m m er at t e t p of a wall ( ee als "Double

plate").

UBC Unif rm Building Code; published by ICBO T e 1997 edit on of t e UBC

w as t e l as t u pd at p ub li sh ed b ef r t e m t o k i t p la ce .

Wood

structural panel Generic term m aning eit er plywood or asH.

Can' f nd a t rm in t is G ossar 7 Cont ct us at www. hearwalls. om W will post defni-

t ons f r r asonable quer es in t e F quenty Asked Q estons s ct on of t e web sit and

will include them in glossaries to future editions of this book.

GLOSSARY

--=-..,"""" r""A..Cn ~UCAD Wi l INQ RITn N 1 0 9



California Polytechnic University Design of Timber Structures

Civil and Environmental Engineering Professor Charles Chadwell

1

Additional Glossary

Additional words to know for the quiz…

• A35

• LPT4

• Joist

• SubFloor

• Gable End

• Fascia

• Truss

• 16d Sinker

• Rim Joist

• Rake Wall

• Balloon Wall

• Ring Shank

• Lookout

Additional words to know for the quiz…

• A35

• LPT4

• Joist

• SubFloor

• Gable End

• Fascia

• Truss

• 16d Sinker

• Rim Joist

• Rake Wall

• Balloon Wall

• Ring Shank

• Lookout

• LRFD

• LFRS

• ASD

• NDS

• PTDF

• Clear Wood

• Rough Sawn

• Full Sawn

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Building Glossary