Cold-Formed Steel Connectors Installation

hello and welcome to Simpson strong ties

training video this video is about full

form steel connector installations after

watching this video you will be familiar

with the basic terms associated with

cold form steel connectors and their

common fastener types you'll also learn

how to install cold form steel

connectors correctly and use them to

form a continuous load path the

continuous load path can effectively

resist wind and seismic forces by

reinforcing the structure from the roof

of the foundation cold form steel

framing members sometimes called light

gauge steel are most commonly made by

roll forming a steel through a series of

dies unlike for hot form structural I

beams this process does not require heat

to form the shape because of its

thickness cold form steel or CFS

requires no heat and can be produced

faster at a more economical rate the CFS

wall studs at each end of a shear wall

sometimes called boundary members or

compression studs are usually made from

two studs positioned back-to-back this

is where usually find a hold down the

stud sizes are specified by the designer

construction that is not 100% steel and

incorporates a mixture of wood or

masonry is called hybrid framing

examples are wood trusses on steel walls

steel trusses or masonry walls etc we

will talk more about this later

let's talk about the fastening systems

used to make connections between CFS

connectors and the steel framing for

steel the steel connections screws are

the most common fasteners screws made

for CFS have better shear values than

nails it is the designers responsibility

to specify the type and number of

fasteners to use on a particular

connector depending on the connector

selected designer may specify fewer

screws than the holes we provide it is

important to install the fasteners in

the holes that are provided all screws

should penetrate and protrude through

the attached materials a minimum of

three full exposed threads

always consult with your specifier if

welding is acceptable with the

connection specified some Steel's have

poor weld ability and have a tendency to

crack when welded welded connections

need to be performed by certified

welders the galvanized coating on the

steel is burned off during the welding

process so it should be treated with

cold galvanizing or other similar

material to retain the corrosion

resistance of the welded area

acrylic and epoxy based adhesives such

as acrylic thai epoxy thai set XP set

and ET epoxy thai adhesives may be used

as a high-strength anchor solution in

CFS structures the Titan HD is a

high-strength thread and anchor for use

in concrete and masonry securing CFS

construction to the foundation the Titan

HD is recommended for permanent dry non

corrosive applications or temporary

outdoor applications it may be used with

hold downs or the built in washer head

conveniently secures the bottom track to

the foundation

power actuated fasteners provide a quick

and economical method for fastening cold

form steel to concrete or steel based


tighten screws are 3/16 and 1/4 inch

diameter masonry screws for attaching

all types of components to concrete and

masonry industry studies show that

hardened fasteners can experience

performance problems in corrosive

environments accordingly use this

product in dry and non corrosive

environments only all specified

fasteners must be installed according to

the instructions incorrect fastener

quantity size type material or finish

may cause a connection to fail install

all specified fasteners before loading

the connection some fasteners may have

premature failure if exposed to moisture

make sure the correct fastener coating

is used together with the correct

connector and installation environment

it is the designers responsibility to

select a connector using the current

code to provide a continuous load path

to resist Wynn seismic and other forces

imposed on the structure in order for

the connectors to properly resist these

forces they must be installed correctly

the SS TB is designed for maximum

performance as an anchor bolt for

holdouts this bolt holds the hold downs

and prevents them from sliding or

overturning helping them resist seismic

or wind forces the Anchor mate is

designed to hold the anchor bolt in

place before the concrete pour the

anchor made holders are reusable for the

next job install the anchor mate to the

forum board using a 2x4 or 2x6 guide the

threaded grippers hold the bolt in the

exact same location and height without

using a nut match the alignment arrows

with the SS TB bolt head arrow

identification arrows on the bolt head

show which way to install the anchor

bolt install the SST B before the

concrete port using anchor mates install

the SST be using one number four rebar

three to five inch from the top of the

foundation use foundation rebar and not

post tension cable the SST B does not

need to be tied to the rebar

the MAS is designed for concrete

foundations such as slabs or concrete

stem walls it's usually installed at the

edge of a slab or stem wall and let's

the finisher draw right up to the edge

without having to steer around anchor

bolts you can install the MAS either

before or right after you pour the

concrete in either case when you install

the MAS correctly the embedded portion

is fully submerged in the concrete and

the straps are outside the concrete to

install the MAS before the concrete is

poured set the straps on top of the form

directed away from inside of the

foundation set the embedded portion in

the area where you'll pour the concrete

drive a duplex nail through each strap

into the form you can also install the

MAS after the concrete is poured but

while it's still wet to do this hold one

strap while you submerge the hook in the

wet concrete up to the embedment line

wiggle the anchor from side to side to

draw it tightly to the inside of the

form and to ensure concrete

consolidation make sure that the straps

are flush with the top of the form then

let the concrete cure watch the anchor

doesn't sink or move during curing

process after the concrete is cured

remove the duplex nails and the form

board after the wall is in position a

12-inch minimum length section of stud

must be installed inside the track then

bend the MAS straps over the stud in the

track install to number 10 screws on the

side and for number 10 screws on the top

if a wall stud is located at any of the

mas strap locations you may screw the

straps to the wall stud it is

recommended that you use low-profile

head screws when sheathing is installed

over the mas

the sdhd is an economical embedded

strapped I hold down with high load

capacity the sdhd the s /pa HD and the s

/ HP HD or hold downs that have one end

embedded into the concrete and the other

strapped in above grade that is screwed

into the wall studs the s THD has a slot

below the embedment line which allows

for increased front-to-back concrete

bond and reduce spalling the following

shows how the s THD is installed the s

THD is installed on the forum board

before the concrete is poured the built

in tab holds the s THD away from the

forum board and keeps the embedment

portion at the correct angle the best

way to secure it to the forum is to use

a strap mate holder and nails line up

the strap mate locator line on the sdhd

with the top of the strap mate 1 number

4 rebar must be installed in the

triangular area or shear cone formed by

the abetted portion of the strap tie in

the concrete during the concrete pour

the strap may be wiggled and adjusted

while the concrete is vibrated to

prevent honeycombing behind the embedded

portion of the strap just make sure that

the locator line is in the correct

position before concrete cures after the

concrete cures the SM one may be removed

and reused

he may be bent down to allow

installation of the wall before

attaching to the wall studs

only one full band cycle is allowed

additional bending will weaken the strap

screw the strap to the cult form steel

studs from the bottom up to prevent

bulging this is what a correct

installation looks like bending the

strap 90 degrees to aid in wall

placement may cause spalling behind the

strap consult the latest Simpson catalog

to see if the load reductions may apply

any portion of the strap left exposed

should be protected against corrosion

strap should not be more than five

degrees out of plumb left or right

otherwise load reductions may apply

the SLA hdu the s /hd s and the s latch

HT t series hold downs install using

self drilling screws in the studs

back-to-back studs or other compression

members are usually required with a hold

outs the designer should specify the

correct Anchorage when selecting the

hole down place the s / hdu over the SST

B anchor bolt and install it with the

standard hex nut drive number 14 or 1/4

inch self drilling screws through the

provided holes in the hole down into the

compression stud members hold downs may

also be installed using our FB bolts

with epoxy adhesives where lighter loads

are desired a Titan HD may be used the s

/ H DB series is ideal for bolt on

applications where the cold form stud

manufacturer can pre punch the bolt

holes place the hole down over the

anchor bolt and fix it with the standard

hex nut a washer is not required for the

anchor bolt use a 307 bolts as the stud

bolts for the s / HDB holdouts standard

washers are required on stud-bolt nuts

for Model S / HD B has two triangular

holes that require number fourteen

screws when slotted studs are used as

the compression studs a thin wall socket

is required for the S / HD 15 bead to

tighten the nut on the one-inch anchor

bolt this is how an S / HD be bolted

connection looks when it is installed

correctly s / HD s and s / HDD hold

downs may also be welded for the

designers recommendation and


the steel strong wall shear wall for CFS

is a prefabricated metal shear panel

designed to resist lateral forces

induced by wind or earthquakes the steel

strong wall provides high-capacity

narrow wall solutions for cold form

steel framing the wall installs easily

in cold form steel framing and

eliminates the need for X bracing

pre-installed steel stud boundary

elements make it easier to attach siding

and drywall steel strong walls may be

custom ordered to the desired plate

height the s / s SW connects to the

foundation using steel strong wall

anchor bolts SS WAB the SS W abs come in

3/4 and 1 inch diameter have heavy hex

nuts fixed in place the purpose of the

SS WAB anchor bolts is to transfer

lateral forces from the shear wall to

the foundation this keeps it from

sliding and overturning off the


steal strong wall concrete templates are

reusable templates that attach to the

form boards the purpose of the concrete

templates is to properly space hold and

elevate the required anchor bolts there

are five different template sizes and

three basic ways to use them based on

the different form types S SWT standard

reversible template used for both

interior and exterior applications SSW

TPF used for panel form applications

SSW TBL used for brick ledge

applications decide which method you

will use before installing the anchor

bolts start the installation by securing

the anchor bolts to the template with

the compression nuts and the

installation nut the next step is to

place the whole assembly on the wood

form be sure to check that is in the

right location pour the concrete to the

top of the compression nut after the

concrete is cured remove the nails the

top installation nut and the reusable

template now that we've learned how easy

it is to install the SS WAB anchor bolts

using the three different templates

let's move on to installing a steel

strong wall to install the steel strong

wall the first step is to place the wall

over the anchor bolts next install the

heavy hex nuts that are provided for you

please note that a snug tight fit is

required use a hand wrench or socket do

not use an impact wrench for top of the

wall attachment use number fourteen self

drilling screws extended through the

connection a minimum of three exposed

threads make sure to fill all screw

holes this is how a steel strong wall

looks in a steel framed wall when


there are a variety of joist hangers to

choose from for the cold form steel

there are the traditional top flange

hangers face mount hangers and the

innovative s / JC T hanger made

especially for steel framing the

traditional top flange s / LBV s / ba or

s / b hangers may be ordered in several

different widths and heights to match

your steel frame joist sizes top flanges

hold the hanger in place during

installation which makes installation

faster and easier

before you begin installing any hanger

verify that you have correctly

identified the joist size the hanger

size the hanger type and the hanger

location the type and number of

fasteners will be determined by the

specified hanger the first step is to

the joist layout so that you know where

to install the hanger place a hanger so

that the top flange is rest on top of

the steel header install number 10

screws to the top flanges and enter the

top of the steel header all screw holes

in the top flange must be filled

along with all holes on the website of

the joist place the joist in the hanger

there should be an eighth of an inch

between the end of the joist and the

face of the steel header to prevent for

squeaks install a number 10 screws

through the hanger side flanges and into

the joist this is what a correct

installation looks like

s /l bv s /b a and s /d hangers may also

be installed by welding the top flanges

a minimum of one eight by two Filat weld

on each top flange is required

distribute the weld equally on both top

flanges consult the designer and the

code for special considerations when

welding galvanized steel this versatile

hanger allows steel joists to be

attached from either side or doubled up

this hanger can also be used with either

steel or wood headers the s / JC t

joists may be attached from the left or

right sides one-size-fits joists 8 inch

through 14 inch deep the s / H JCT

provides all the same features and has a

higher capacity hanger install a top

flange of the hanger or the header using

number 10 screws for the minimum load

capacity go all the round holes to

achieve the maximum load capacity fill

both round and triangular holes

note that the s / H JCT hanger uses

number 14 screws for a higher allowable

load place the joist on the hanger two

hooks at the top of the hanger allow the

joist to position temporarily with the

flange to the left or the right until

the joist can be secured

the s /jc T is filled skew able up to 45

degrees left or right this installation

may also be used for weld on

applications the minimum required weld

on the top flange is 1/8 by two and a

half inch fill it weld on each side of

the top flange consult your designer and

the appropriate building codes for

special considerations when welding

galvanized steel sometimes concealed

flange face mount hangers such as the

ahu series are the hangers of choice

they may be screwed or welded to the

supporting steel members the first step

is to measure and mark the intended

location of the joist on the header so

that you know where to install the

hanger for screwed applications go all

round hole with number 10 screws for

welded applications use 1-inch weld

segments equally spaced top to bottom

with half a segment on each side of the

hanger based on the desired load you

will need four or six 1-inch weld

segments welds may either lap joint on

the outside edge of the flanges or flare

bevel groove on the flange Bend line

tbh and lt be tension bridging are a

cost-effective way to provide bracing

between floor joists when compared with

field fabricated blocking and clip

angles with multiple fasteners the LT be

bridging features a staggered fastening

pattern that accommodates six to twelve

inch web heights on floor joists either

the TB or LT B will fit joist flange

widths from one and five-eighths to

three inches install TB or LT be

bridging on the top flange of the first

joist drive to number 10 screws in any

of the seven screw holes provided bend

the bridging so that the other side of

the strap meets the bottom flange of the

second joist drive to more number ten

screws in any of the seven holes

provided on this end leaving a minimum

of a quarter inch gap between the first

bridging install the next bridging

diagonally in the opposite direction in

the same manner the quarter inch gap

will help prevent for squeaks

this is what a correct installation

looks like trust slip clips the STC dtc

or the STC T supports the top of a non

load-bearing wall while allowing

vertical movement of the truss cord the

one and a half inch slot permits

vertical trust chord movement when loads

are imposed on the structure to install

the STC T first place it on the top

plate position it next to the truss then

install two number eight screws into the

top track install slot screws in the

middle of the slot screws installed into

the truss or rafter should not be driven

too tight to allow vertical trust

movement this is what the STC tea looks

like when it's installed correctly

the trespasser bracer captures the

Oncenter spacing of trusses and

laterally braces the truss members its

tube shape provides strength in both

compression and tension you can use the

TSB 2-24 as lateral bracing for top

chords bottom chords and web members

start the installation by placing the

brace on top of the top chord or bottom

chord next secure the bracing by driving

to number 10 screws through the two

holes at each end of the brace if web

members require permanent lateral

bracing the truss design drawings will

indicate which webs to brace you can

install the TSB on either side of the

web members here is what the TSB 2-24

looks like when it's correctly installed

you don't need to remove the TSB 2-24

before you install the permanent

sheathing diaphragm its profile is low

enough that you can sheet over it

hurricane ties are designed to resist

imposed seismic and wind loads

connecting the trust or joist to the

wall framing this versatile line may be

used for many applications where one

member crosses another strong back

attachments and various general purposes

the s / h3 is a versatile uplift

connector this series of truss

connectors attaches to one side of the

truss and the other to the track below

it the s / h3 comes in left's and rights

to aid in the installation to install

align the s / h3 where the top of the

top plate secured the s / h3 by driving

two screws into the top plate and two

screws into the truss

the s /h one is ideal connector when

installing the ties before the trusses

are put into position the S / H 1 can be

pre-installed on layout when stacking

trusses simply slide them into position

place the hangers such that it aligns

flush on the top track of the wall

derive 3 number 10 screws into all holes

in the top track and wall stud the s /

h1 can be installed with flanges facing

outwards when installed inside a wall

for trust applications hurricane ties do

not replace solid locking s / PS PN

protecting shield plate can also be used

as a track splice trap these plates are

required to meet the plumbing and

electrical codes note that there are

more holes in this part than the

required number of screws consult with a

designer to determine how many screws to

use place the s / PS pn between the

studs where the track flange has been

compromised and install a required

number number 10 screws we realize that

not all construction is 100% cold form

steel some constructs uses hybrid

framing and therefore connector

installation may be different

the SLS JCT may be used with a wood

header full length 10 D nails are used

in the top flange and face of the hanger

consult the catalog or designer to

determine how many nails should be used

for the S / h JC TN SDS screws may be

required through the face into the

header to achieve the desired loads

place the joists on the hanger a hook at

the top of the hanger will allow the

joist to be positioned temporarily

install number 10 screws through the

side of the hanger into the steel joist

many times wood trusses or rafters are

used over CFS framing in this situation

regular word hurricane ties can be used

consult the hybrid framing section of

the catalog or the designer to determine

how many nail or screws should be

installed use 80 nails into the wood and

number 10 screws to secure to the CFS

do not install screws into the wood or

nails into the steel framing in the case

of a wood trust which needs to attach to

a Steel header you would use au Lu or hu

hanger whichever meets the required

design loads use a require number and

type nail for the truss and use the

required number and type of screw for

the steel header when wood framing

members are used in conjunction with

steel framing standard Simpson

connectors should be used except for

double sheared hangers like the L us the

M US and the H us the slant nailing and

such hangers will deflect off the CFS on

the wall in correct fastener quantity

size type material or finish may cause a

connection to fail well the connection

should be done by certified welders only

it is important to install the fasteners

in the holes that are provided do not

install screws into the wood or nails

into the steel frame double shear

hangers cannot be used in steel


the cold form steel products cannot be

bent on the field unless specified by

the designer we covered a lot in this

short video about cold form steel

connectors now you are familiar with

basic terms associated with cold form

steel connector installation and you can

use the different fastening systems you

also know how to install cold form steel

connectors correctly while avoiding some

common mistakes I hope you enjoyed this

video thank you for your attention