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55 Cards in this Set
- Front
- Back
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Conc formwork: coil ties |
med to heavy duty. Accept threaded bolt and passes they formwork |
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Conc formwork: flat tie |
Light duty. Wedge bolt to space and secure forms |
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Conc formwork: snap ties |
Light duty. Can be broken off where not needed outside of formwork. |
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Conc formwork: steel taper tie |
Back (Definition) |
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Conc formwork: Rock anchor |
One side forming of walls |
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Conc formwork: tie rod accessories |
Back (Definition) |
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Conc formwork: rebar / mesh supports |
Back (Definition) |
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Conc formwork: Fiberglass form tie |
Cut excess easily |
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Masonry: rebar spacers |
Holds rebar |
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Mortar: angle clip anchor |
Back (Definition) |
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Mortar: anchor bolt detail |
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Mortar: anchor bolts |
Angled part is submerged in concrete . |
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Mortar: anchor details |
Back (Definition) |
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Masonry: joint reinforcement |
Adjustable allows for more movement between wythe |
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Masonry: adjustable unit tie- conc frame backup |
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Masonry: adjustable unit tie for steel stud backup |
Back (Definition) |
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Masonry: unit tie for masonry backup |
Back (Definition) |
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Masonry: adjustable unit tie for steel frame backup |
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Masonry: typ adjustable unit tie |
Back (Definition) |
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Wood: be familiar w/ fasteners and how deep they go into receiving members |
Countersunk = less corrosion & vandalism ( hidden with wood plugs) |
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wood: (conc connectors) retrofit bolts |
-Attach wood to conc walls, footings or slabs. - inserted into predrilled hole & bonded to conc using expansion bolts, epoxy adhesives, nonshrink cementitious grout |
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wood: (conc connectors) embedded anchor bolts/hold down |
- set in place during conc pour (precise layout) - threaded end of anchor bolt extends out from conc & receives wood member / metal connector. |
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wood: what're post base anchors |
base anchors (avail for retrofit or new construction) anchor is epoxied or expansion-bolted to conc footing or embedded into conc pour. Anchors avail as fixed or adjustable, designed to receive standard dim’ed wood posts. |
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wood: hangers |
designed to connect horizontal member (beam / joist) w/ another horizontal member (beam). -these rely on nails, screws, bolts to form connection |
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wood: nails should be how long compared to the thickness of the board? |
use nails 2-1/2 times as long as thickness of board |
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wood: screws |
-embed more than ½ of it’s length into the base. -Clearance and pilot holes help install and prevent wood splitting. -Flat heads can be flush or countersunk. Washers placed under roundhead (esp in softer woods) can also be countersunk. |
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wood: which bolts are used w/ special metal plates? why? |
-Carriage bolts are used w/ metal plates w. Square hole to prevent bolt from turning while being tightened. |
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Wood: be familiar w/ nails ( image) |
common nails-nails w/ heads: used for structural framing. Finish nails: non structural where appearance is important. |
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Wood:(image) be familiar w/ screws |
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Wood:(image) be familiar w/ bolts |
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Wood:( image) be familar w/ TYP post anchors |
Back (Definition) |
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Wood: bolts should typ be long enough to permit what in construction? |
long enough to permit washer under both the head and the nut and allow at least 3/16” beyond the nut. |
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Wood:( image) TYP post cap and tie plates |
Back (Definition) |
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Wood:(image) typ metal straps and brackets |
Back (Definition) |
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Wood: nails should be installed how for better holding power |
drive nails @ slight angle = better holding power |
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Wood:aside from carriage bolts what other bolt req's a washer under the head? |
Lag bolts req washer under the head. |
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Wood:nails - whats a common cause of failure what should be used instead in these conditions? |
heavy load conditions = nails pulling out. use bolts or lag bolts. |
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Wood:nails - what type of nail resists rust better? |
hot dipped nails resist rust. |
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Wood: how should lag bolts be installed during construction? |
Threaded end of lag bolt should NEVER be exposed. Use pilot hole to prevent splitting of wood member. |
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Wood: what're post caps? |
Caps designed to sit on top of post / column & provide seat to receive horizontal member (beam or joist). |
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Wood:(image) TYP framing anchors |
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Wood:(image) TYP joist hangers and girder hangers |
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list general Strongest to weakest hardware connectors |
Bolts > screws > nails |
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rust resistance of hardware listed best to least |
hot-dip galvanized> mechanically galvanized > electro-galvanized |
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materials and finishes of metals |
zinc plated: moderate rust protection (not good for exterior use) galvanized steel (good corrosion resistance) |
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carriage bolts are best used on... |
wood |
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which bolts / screws should be used w/ expansion shields? |
lag bolts |
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why are bolts always drilled into pilot holes? |
less chance of wood splitting allows for a snug fit if drilled at least 1/16th larger than bolt |
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why use washers for fasteners? |
increase the surface of the fastener against the wood due to their size - spreads (?) out pressure of fastener on surface of material adds addt'l protection against fastener pulling out of wood (tension failure) |
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what helps bolts lessen the chance of breakage under load? |
the size of their heads (vs screws/ nails) |
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which bolt is (apparently) very permanent |
hex bolts |
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what's a post cap? |
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be familiar with different methods of joining and fastening wood fences |
method depends on desired look |
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epoxy characteristics |
resin. low shrinkage rate, userful for adhering and potting. excellent adhesion to metals / other matierlas chemical resistance & waterproof |
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silicone characteristics |
superior thermal stability. has flexibility under pressure (allows for memory of original shape) |
