G-5 Install Reinforcement

Question 1

Anchor bolts

Answer 1

used to make connections between framing and concrete members. provide lateral stability against earth quakes, uplift from wind.

Question 2

Pipe sleeve

Answer 2

Pipe leaves leave a portion of the bolt free of concrete so that location may be adjusted after casting

Question 3

Protection of anchor bolts

Answer 3

protect threads with tape during pour

Question 4

Dowels

Answer 4

short pieces of rebar used to connect two separate cast-in-place concrete sections. can be smooth or deformed rebar. can also be inserted by hand after concrete is poured *make sure not to go through into soil.

Question 5

Penetration od dowels

Answer 5

if not specified by engineer multiply diameter of bar by 24 then multiply that by 2.

fo is rebar is 12mm in diameter go
12 x 24 = 288
then
288x2 = 576mm

Question 6

Rebar

Answer 6

added to increase tensile strength is foundations, columns, beams, slabs and other concrete members.

Question 7

why is steel rebar perfect for concrete

Answer 7

because steel and concrete expand and contract at the same rate.

Question 8

Lapping rebar

Answer 8

unless specified by and engineer, bar should be lapped at least 24 bar dimensions over the last bar.

Question 9

Bending rebar

Answer 9

either purchased pre bend or done onsite with a rebar bender (big red)

Question 10

Smooth dowels

Answer 10

Expansion joints use smooth dowels to keep slabs in alignment. the dowels hold both slabs in place vertically but allow them to move horizontally.

Question 11

Anchorage

Answer 11

embedded metals are anchored to concrete by deformed rods, bolts or bent bars. these anchors are welded to the back of the metal components.

Question 12

Edge projection

Answer 12

angled metal lates are used to protect edges of loading docks, doorways or on exposed corners.

Question 13

Weld plates

Answer 13

pre cast construction methods use weld-plates to connect sections. plates embedded in footings and embedded in wall section are welded together after being placed.

Question 14

Inserts

Answer 14

size and holding capacity is designed for the load that that are supporting.

Question 15

strength of insert depends on/

Answer 15

how well the concrete is consolidated around it.

Question 16

Tee bar ceiling hangers

Answer 16

used for suspended ceiling hangers in commercial building where suspended slabs are flooring systems.

Question 17

Loop inserts

Answer 17

used to support heavy loads. lifting rings are used to move precast concrete.

Question 18

Raglet

Answer 18

a Raglet is a continuous groove that is cut or formed into a wall (usually above a point of intersection with a flat roof) flashing is caulked into the raglet to keep everything waterproof.

usually 25mm deep

Question 19

How are Raglets formed?

Answer 19

formed by nailing a wooden strip to inside of form-board.

Question 20

Manufactured raglets

Answer 20

PVC raglets can be fastened to inside of form board.

Question 21

Metal or PVC wall mounted raglets

Answer 21

these are attached directly to the wall after its finished. then flashing snaps into it.

Question 22

Metal frame in concrete

sewer access cover frames

Answer 22

barrel shaped concrete shaft descending from the street or floor level to the storm sewer main.

Question 23

Pit mounted dock levers

Answer 23

formework for this is incorporated into a box that is set into the surface of a concrete slab. it will be incased with concrete on all five sides.

the five sided form will act like a boat and float in concrete so it will be needed to be braced or weighted down.

Question 24

Cast in place doc levers

Answer 24

require little or no forming. they must be set in place very accurately and securely braced.

Question 25

Controls for dock levers

Answer 25

normally located far from dock lever. conduit pipe must be laid in slab so that wires cable fed to control panel.

Question 26

Water stops

Answer 26

made from plastic or rubber. these are positioned along construction joints between two separate placements of concrete to prevent water seepage dude to hydronic pressure.

Question 27

dumbell waterstop

Answer 27

used where significant water seepage is expected.

Question 28

Serrated waterstop

Answer 28

used where differential settlement is expected and a firm grip in concrete is required.

Question 29

Caulk waterstop

Answer 29

waterstop that is not secured into the formwork. it is applied over the construction joint after it is poured.

Question 30

wooden door jambs

Answer 30

opening formed by wood in formwork. fasted to wooden keys also formed into concrete.

Question 31

when forming wooden door buck make sure to?

Answer 31

brace vertically and horizontally so weight of concrete does not bend or twist buck.

Question 32

Metal door jambs

Answer 32

either knocked down (KD) or welded and ready to instal. both types can be used in concrete or masonry walls before or after wall is constructed.

Question 33

Procedure for installing steel jamb in concrete form.

Answer 33

1. set pre assembled jam closely against one side on concrete form. 2. thoroughly brace frames as shown to keep it from bending. 3. plug all holes with rubber stoppers so concrete doesn't leak through 4. if jamb is thinner than wall install wooden pack out strips.

Question 34

Installing metal jamb in masonry wall

Answer 34

you must carefully brace and support and level the jamb in such a way that does not interfere with the mason.

Question 35

what are different to headers in block walls

Answer 35

extra deep header to make up the difference in height between regular door height and the blocks in wall.

Question 36

Fastener strength

Answer 36

usually made with materials that are stronger than the materials they are getting fastened to.

Question 37

Expansion shields

Answer 37

are used with lag bolts to fasten items to concrete. they expand once pounded into concrete

Question 38

Lead plug

Answer 38

similar to expansion shields but used for lighter loads.

Question 39

Wedge, sleeve or drop in anchors

Answer 39

anchors are inserted into holes drilled into the concrete. the size of hole must match the size of anchor. as the bolt tightened the anchor spreads.

Question 40

Insulation attachments

Answer 40

these are for light duty functions. attaching insulation materials to concrete.

Question 41

Pin bolt

Answer 41

(used to put strapping on 1st street) anchor is placed into a predrilled hole in concrete and pin is driven into sleeve that holds the strapping.

Question 42

Tapcon anchors

Answer 42

known for its ease of installation. 1. drill hole 1/4" deeper then needed

Question 43

Adhesive anchor

Answer 43

uses polyester resin to glue fastener into place. a glass capsule of resin is placed into hole then the anchor stud is used to break it.

Question 44

Powder-actuated fasteners

Answer 44

fasteners are designed to penetrate concrete or mild steel.