AW_HC 16-US HALFEN HANDRAIL CONNECTIONS

CONCRETE

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HALFEN HGB/HTA-R Anchor Channels

and high-strength T-bolts provide a secure method of anchoring handrail posts to the edge of concrete slabs. HALFEN Anchor Channels are specifically engineered embedments for high performance in thin slabs.

Fast and cost-eff ective

• Adjustable anchorage• Can be used in slabs as thin as 6in• Bolted connection elimiates the need for welding• Edge of slab connection increases

usable square footage of balconies and walkways

Safe and reliable

• Structurally verifi ed connection• No drilling eliminates risk of damag-

ing thin slabs during installation• Can also be used for anchoring fall

protection guards required by OSHA (29 CFR 1926 Subpart M)

• Permits future adjustment and replacement of railing

HALFEN Handrail Connections

HGB E-54/33-A4

HALFEN Handrail Connections

HGB E-49/30-A4

HALFEN Handrail Connections

HTA-R 52/34-HDG

HALFEN Handrail Connections

HTA-R 50/30-HDG

HALFEN Handrail ConnectionsAdvantages at a Glance

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Contents

HALFEN HANDRAIL CONNECTIONS

Contents

HALFEN Handrail Connections

- Application examples 4 - Materials / Corrosion protection 5 - Product range 6-7 - Strength design requirements 8 - Technical data 9 - Installation specifi cations 10 - Installation guide 11

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HALFEN HANDRAIL CONNECTIONS

Appl icat ion examples

Connection of Handrails, RheinEnergieStadion Cologne, Germany

Connection of Handrails, RheinEnergieStadion, Cologne, Germany

Connection of Seats, O2-Arena, Berlin, Germany

Fall protection, O2-Arena, Berlin, Germany

Watchtower World Headquarters, NY, USA Watchtower World Headquarters, NY, USA

Watchtower World Headquarters, NY, USA

BALCONY HANDRAILS

STADIUM HANDRAIL AND SEAT CONNECTIONS

RAILING AND FALL PROTECTION

Park@201, Iowa City, USA

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HALFEN HANDRAIL CONNECTIONS

Mater ia ls/Corros ion protect ion

Handrails are a critical safety component of walkways, balconies, bridges and various industrial applica-tions. Handrail design is dictated by strict code requirements outlined in the latest editions of the International Building Code (IBC), ASCE ‒ 7, and OSHA 29 CFR 1926. These codes specify dimensional, height, spacing and loading requirements that must be observed when designing the structural system.

HALFEN Handrail Connections are engineered to comply with all code

To ensure that the connection performs to its full potential throughout its lifetime, it is critical that the correct corrosion protection is chosen. The corrosion process is complex and can be attributed to many factors. HALFEN Handrail Connections are available in either Hot Dip Galvanized (≥ 50 μm) or Stainless Steel, depending on the level of corrosion resistance required. The corrosion resistance of zinc coatings is primarily dependent on the thickness of the coating relative

requirements, while still providing a safe and reliable connection into the edge of thin slabs. Anchoring into the edge of slabs increases the usable square footage for balconies and walkways.

HALFEN Handrail Connections are cast into the concrete and eliminate the need for post-installed drilling or coring into the slab. This eliminates the risk of damaging reinforcement or cracking the slab. Railing posts grouted or cast into the concrete can be susceptible to concrete freeze-thaw or corrosion if the

to the environmental conditions. Zinc corrosion rates can be obtained from the American Galvanizer's Association and ASTM B 633. For moderately to highly corrosive environments (in-dustrial and coastal environments) or where an extended lifetime of the connection is warranted, stainless steel is recommended.

Corrosion can also occur when two dissimilar metals or alloys are in contact and in the presence of an

wrong grout is used. The HALFEN Handrail Connection product range consists of HGB stainless steel and HTA-R galvanized systems to accommodate various levels of corrosive environments.

HALFEN Handrail Connections are designed to be nailed to the form work allowing for quick, easy and accurate installation. The channel provides horizontal adjustment while installing the railing posts to accommodate for construction tolerances.

electrolyte. This is know as Galvanic Corrosion or Bi-metal Corrosion. To prevent Galvanic Corrosion from occurring, all T-bolts, nuts, washers and channels shall be of the same material, i.e., stainless steel bolts, nuts and washers shall be used with stainless steel channels.

All carbon steel components are Hot Dipped Galvanized in Accordance with ASTM A153.

General

Corrosion Protection

Materials Component Material/Grade1 Standard1

Stainless Steel Channel 1.4404 or 1.4571 (316L or 316Ti) DIN EN 10088

Stainless Steel T-bolt A4-70, A4-50 (316, 316L or 316T) DIN EN 356-1 & DIN EN 10 088 (ASTM F738M)

Stainless Steel Nut A4-70, A4-50 (316, 316L or 316T) DIN EN 356-2 & DIN EN 10 088 (ASTM F836M)

Stainless Steel Washer 1.4401, 1.4404 or 1.4571 (316, 316L or 316Ti) DIN EN 10088

Headed Anchor B500B DIN 488-1/-2

Hot Rolled Carbon Steel Channels S235JR or S275JR DIN EN 10025-2

Reinforcement Bar A 706 Grade 60 ASTMA A 706

Standard Grade T-bolts Steel FK 4.6 DIN EN ISO 898-1 & DIN EN ISO 4034(ASTM F568M)

High Strength T-bolts Steel FK 8.8 DIN EN ISO 898-1 & DIN EN ISO 4034(ASTM F568M)

Standard T-bolt hexagonal nut Steel FK 5 DIN EN ISO 898-2 & DIN EN ISO 4032(ASTM F563M)

High Strength T-bolt hexagonal nut Steel FK 8 DIN EN ISO 898-2 & DIN EN ISO 4032(ASTM F563M)

Standard T-bolt washer Steel ASTM F844

1 items in () are equivalent US material and standards for the international specification and standard provided

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HALFEN HGB Handrail Connection

Item Description Dimensions HGB-E (in [mm]) HALFEN HS T-bolts

l dA hA Description Grade Diameter [mm]

6 [150]

9/16 [14] 7-7/8 [200]

HS 50/30 A4-70 M12

8 [200] HS 50/30 A4-50 M16

6 [150]

1/2 [12] 4-5/16 [110]

HS 50/30 A4-70 M12

8 [200] HS 50/30 A4-50 M16

HALFEN HTA-R Handrail Connection

Item Description Dimensions HTA-R (in [mm]) HALFEN HS T-bolts

l dA hA Description Grade Diameter [mm]

6 [152]

5/8 [16] 17 [431] HS 50/30 4.6 M16

8 [203]

6 [152]

1/2 [13] 14 [356] HS 50/30 4.6 M16

8 [203]

6 [152]

1/2 [13] 14 [356] HS 40/22 4.6

M12

8 [203] M16

Additional bolt diameters are available. Contact HALFEN USA Engineering for more details Calculated in accordance with ACI 318-14 Eq. 25.4.2.3a for f`c=3000psi, normal weight concrete, cb based on page 10, and Ktr = 0

p

dA

hA

B500B (BSt 500 S)

B500B (BSt 500 S)

ASTM A706

ASTM A706

ASTM A706

HGB-E - 54/33-A4

HTA-R - 50/30-HDG

HTA-R - 40/22-HDG

HTA-R - 52/34-HDG

HGB-E - 49/30-A4

HALFEN HANDRAIL CONNECTIONS

Product range

A4 = Stainless steelHDG = Steel hot-dip galvanized

52.5

33.5 ha

ha

ha

30

49

23

39.5

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Dimesions Vmin

Bolt diameter vmin [mm]

M12 17.0

M16 20.5

M20 26.0

Channel lip dimensions f

Channel profile f [mm]

49/30 7.39

50/30 7.85

52/34 10.5

54/33 7.9fixt vmin

h

f

lreq = required T-bolt length

tfi x = thickness of clampedcomponent

f = profi le lip height

h = washer thickness

vmin = Nut height EN ISO 4032+ overhang approximately 5 mm (for M20: 7 mm)

lreq = tfix + f + h + vmin

Calculating the T-bolt length lreq for HALFEN T-bolts

Ordering Information

HALFEN T-bolt

lreq

HALFEN Handrail Connection

Description Article Number Profile Finish Length (mm) Min. Slab Thickness (mm) Qty/Order

HGB-E 49/30 - A4 - 150 0003.030-00803 49/30 A4 150 140 1

HGB-E 54/33 - A4 - 150 0003.040-00803 54/33 A4 150 150 1

HGB-E 49/30 - A4 - 200 0003.030-00804 49/30 A4 200 140 1

HGB-E 54/33 - A4 - 200 0003.040-00804 54/33 A4 200 150 1

HTA-R 52/34 - HDG - 152 0012.078-00003 52/34 HDG 152 150 1

HTA-R 50/30 - HDG - 152 0012.058-00003 50/30 HDG 152 140 1

HTA-R 40/22 - HDG - 152 0012.038-00003 40/22 HDG 152 120 1

HTA-R 52/34 - HDG - 203 0012.078-00002 52/34 HDG 203 150 1

HTA-R 50/30 - HDG - 203 0012.058-00002 50/30 HDG 203 140 1

HTA-R 40/22 - HDG - 203 0012.038-00002 40/22 HDG 203 120 1

HALFEN T-bolts & Nuts

Description Article Number Compatible Channel Grade Diameter (mm) Length (mm) Qty/Box

HS 50/30 - M12 x 40 - A4 - 70 0350.090-00002 49/30 & 54/33 A4-70 12 40 25

HS 50/30 - M12 x 50 - A4 - 70 0350.090-00003 49/30 & 54/33 A4-70 12 50 25

HS 50/30 - M16 x 40 - A4 - 50 0350.090-00006 49/30 & 54/33 A4-50 16 40 25

HS 50/30 - M16 x 40 - HDG 0350.090-00041 50/30 & 52/34 4.6 16 40 50

HS 50/30 - M16 x 50 - HDG 0350.090-00042 50/30 & 52/34 4.6 16 50 50

HS 40/22 - M12 x 50 - HDG 0350.090-00030 40/22 4.6 12 50 50

HS 40/22 - M16 x 50 - HDG 0350.090-00048 40/22 4.6 16 50 50

Washers are not included with T-bolts and nuts and must be purchased separately. Washers should be of the same finish as the corresponding T-bolt and nut. T-bolts should be of the same fi nish as the corresponding HGB or HTA-R Handrail Connection

HALFEN HANDRAIL CONNECTIONS

Product range

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Design Checks

Design Loads

Vua

Mua

Nua ee

(e-0

,41x

X)Mua

(e -0,41· x)

ew

W1

L1D1

eL

eD

The design strengths provided on page 9 shall be compared with loads determined using IBC Section 1605.2.1 or ACI 318-14 Section 5.3.1.

W1 = wind load acting on the handrail per ASCE 7 or IBC L1 = live load acting on the handrail per ASCE 7 or IBC D1 = dead load acting on the handrail per ASCE 7 or IBC

e = distance between channel axis and outer edge of the base platex = maximum height of concrete compression zone (calculate according to page 9)eD = distance between resultant dead load and edge of slabeL = distance between resultant live load and center line of anchor channeleW = distance between resultant wind load and center line of anchor channel

Note: This model is for reference only and it is ultimately the responsibility of the engineer to account for all loading according to applicable codes and design requirements.

It should be verifi ed that HALFEN Handrail Connections conform to the following requirements:φNn ≥ Nua φNn = lowest nominal tension strength from all appropriate failure modes under tensionφVn ≥ Vua φVn = lowest nominal shear strength from all appropriate failure modes under shearφMn ≥ Mua φMn = lowest nominal bending strength from all appropriate failure modes under bending

HALFEN HANDRAIL CONNECTIONS

Strength des ign requi rements

where:x = maximum height; concrete pressure zoneb = width of pressure zone = width of anchor plate bpf′c = compressive strength of concrete

Note: for concrete strength greater than 400 psi, f'c equals 4000

e = distance between anchor channel axis and outer edge of the anchor plate

φ = 0.65 = load reduction factor for compression controlled concrete sections

Design resistance of concrete edge bearing strength:

With combined loads the following interactions must be verified:

Nua = Mua

+ Hua(e − 0,41 ⋅ x)

Required Design Verifications

Load Failure Mechanism Strength Requirement

Tension (φNn)Steel Failure (φNn,steel)

Nua ≤ φ Nn = min (φNn,steel, 2 * φ Nss) T-bolt Failure (φNss)

Shear (φVn)

Steel Failure (φNn,steel)

Vua ≤ φ Vn = min (φVn,steel, φVn.conc, 2 * φ Vss) Concrete Failure (φVn,conc)

T-bolt Failure (φVss)

Bending (φMn) Bearing Failure (φMn) Mua ≤ φMn

φMn = 0.85 ⋅ x ⋅ b ⋅ φf`c ⋅ (e - 0.41 ⋅ x)

1.) (Nua/φNn) + (Vua / φVn) ≤ 1.2

2.) (Mua/φMn) +1.5 Vua / φVn ≤1.5 for 0.333 ≤ Vua / φVn ≤ 1.0

Hua = summation of factored horizontal loads acting on handrail Vua = summation of factored vertical force acting on the channel Mua = factored bending moment at channel (e.g. 1.6 L1*eL+1.2 D1*eD)Nua = factored tensile force acting on the channel

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Design Strength of Channel (two-bolts)

Profile 40/22 49/30 50/30 54/33 52/34

Steel

Tension (φNn,steel)

kip [kN] 9.2 [41.2] 6.1 [25.8] 10.9 [45.8] 10.3 [45.8] 17.9 [79.6]

Shear (φVn,steel)

kip [kN] 10.1 [44.9] 6.1 [25.8] 10.4 [46.2] 10.3 [45.8] 16.5 [73.4]

Concrete

Shear (φVn,conc)

kip [kN] 1.1 [4.9] 2.6 [11.7] 1.3 [5.7] 2.9 [12.7] 1.6 [7.1]

Maximum height of con-crete compression zone (x) 0.25 * e 0.30 * e 0.30 * e 0.40 * e 0.40 * e

e = distance between anchor channel axis and outer edges of the anchor plate. For asymmetrical anchor plates the smallest distance to the outer edge of the anchor

All capacities for the HGB 49/30 and HGB 54/33 are dependant on using the minimum required anchor reinforcement provided in the table below

All values based on the minimum allowable slab thickness, normal weight concrete, and f`c=3000psi

c1 e

ec1

bp

p ae

hp

Design Strength of Single T-bolt

Load Bolt GradeT-bolt Diameter

M12 M16 M20

Tension (φNss)kip [kN]

4.6 5.6 [24.9] 10.0 [44.4] 16.5 [73.4]

8.8 9.8 [43.5] 18.3 [81.4] 28.6 [127.2]

A4-50 ‒ 9.1 [40.4] ‒

A4-70 8.6 [38.2] ‒ ‒

Shear (φVss)kip [kN]

4.6 2.9 [12.9] 5.5 [24.4] 8.6 [38.2]

8.8 5.4 [24.0] 10.1 [44.9] 15.8 [70.2]

A4-50 ‒ 5.0 [22.2] ‒

A4-70 4.7 [20.9] ‒ ‒

Required minimum reinforcement:One stirrup shall be placed centrally between the channel anchors. The outer stirrups shall be placed in accordance with provisions shown in ACI 318-14, Figure 17.4.2.9.

For connections designed using Allowable Stress Design (ASD) allowable loads shall be determined as follows:

HALFEN HANDRAIL CONNECTIONS

Technica l data

Required min. anchor reinforcement

DescriptionAnchor channels

49/30 54/33

Stirrup (Quantity) # 3 # 4

Leg length (in [mm]) 19 [483] 23 [584]

Edge reinforcement, top and bottom #3 #4

Leg length = ldh + ld calculated in accordance with ACI-318-14 Ch. 25. ld calculated in accordance with ACI 318-14 Eq. 25.4.2.3a for f´c=3000psi, normal weight concrete cb = 1.0, and Ktr = 0

Tallowable, ASD = φNn

Vallowable, ASD = φVn

αASD

αASD

αASD = Conversation factor calcu-lated as a weighted ave-rage of the load factors for the controlling load combination

pL ae

Pos. 1

Pos. 2

Stirrup

Edge rebar

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Installation and Anchoring Specifications

Description Illustration40/22

50/30 52/3449/30 54/33

A) Bolt spacing requirements

Minimum T-bolt distancep (in [mm])

3-1/4 [80] 3-1/4 [80] 3-1/4 [80]

B) Concrete Dimensions and Edge Distance Requirements

Minimum thickness ofconcrete member (in [mm])

5 [127] 6 [152] 8 [203]

Minimum edge distance c1 (in [mm])(channel axis to the upper and the lower edge of the concrete component)

2.5 [63.5] 3 [126] 4 [101.6]

Minimum distance ae (in [mm]) to edge of concrete member (from end of channel)

1-3/4 [45] 2 [50] 2 [50]

C) Connection Plate Requirements

Minimum distance e (in [mm]) from channel axis to the upper and the lower edge of the anchor plate

1-3/16 [30] 1-3/8 [35] 1-1/2 [38]

Minimum distance a1 (in [mm]) from the upper and lower edge of the anchor plate to the uppper and lower edge of the concrete component

3/8 [10] 3/8 [10] 3/8 [10]

Minimum distance a2 (in [mm]) from the outer edge of the anchor plate to the edge of the concrete component

1-1/3 [45] 1-3/4 [45] 1-3/4 [45]

In components with a weather groove the bottom of the groove is regarded as the concrete component edge

e

e

a1

a1

a2

HALFEN HANDRAIL CONNECTIONS

Insta l la t ion spec i f i cat ions

10

h

C1

C1

ae

© 2016 HALFEN · AW_HC 16-US · www.halfenusa.com

≥1in≥1inI

After striking the formwork, remove the foam fi ller from the HALFEN Anchor Channels.

Where possible, use nails of similar material to that of the channel to avoid corrosion.

Insert HS T-bolts into the HALFEN Anchor Channel (turn 90° until bolt locks in place).

HALFEN Handrail Connection allows horizontal adjustability during installation.

Tighten the nuts using a tor-que wrench. See table on the right for torque values

washers are ordered separately

Installation and adjustment of handrails

Tighten the T-bolts

Nail the HALFEN Anchor Channel to the formwork

Short piece

Ability to nail HALFEN Anchor Channels to the form-work allows quick, easy and accurate installation.

Fixing Position of the T-bolts

1

2

3

Recommended Torque Values

T-bolt Description

Torque [lb-ft (Nm)]

4.6; 8.8A4-50; A4-70

HS 50/30

M 16 48 (65)

M 12 18 (25)

HS 40/22

M 16 48 (65)

M 12 18 (25)

HALFEN HANDRAIL CONNECTIONS

Insta l la t ion guide

≥1in

≥1in

≥1-3/4 in

≥1-3

/4in

l1

l

Corner connections available upon request, contact HALFEN USA Engineering.

α = 90°

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CONTACT HALFEN WORLDWIDE

www.HALFEN.com

HALFEN has a global network of Subsidiary Companies to assist you. The main contact information for North America and the European Headquarter is provided below. For a ful l l ist of off ices please visit www.HALFEN.com

HALFEN GmbH shall not accept liability for the accuracy of the information in this publication or for any printing errors.

HALFEN is also represented by distributors in Argentina, Australia, Azerbaijan, Belarus, Brazil, Bulgaria, Chile, China, Colombia, Croatia/Bosnia-Herzegovina/FYROM/Montenegro, Cyprus, Estonia, Greece, Hong Kong, Hungary, India, Indonesia, Ireland, Israel, Japan, Jordan, Kingdom of Saudi-Arabia, Latvia, Lebanon, Lithuania, Luxembourg, Malaysia, Malta, Mexico, New Zealand, Peru, Philippines, Republic of Kazakhstan, Romania, Russia, Serbia, Singapore, Slovenia, Spain, South Korea, Taiwan/ROC, Thailand, Turkey, Ukraine, United Arab Emirates, Uruguay, Vietnam

USA & Mexico HALFEN USA Inc.PO Box 18687San Antonio TX 78218

Phone: +1 800.423.9140E-Mail: info@halfenusa.comWeb: www.halfenusa.com

Fax: +1.877.683.4910

Canada UCC Industries International [Distributor]Units 12 & 13895 Sandy Beach RoadPickering, Ontario, L1W 3N7

Provinces of British Columbia and Alberta: Please contact HALFEN USA Inc.

Phone: +1 905.831.7724E-Mail: bhughes@ucci.caWeb: www.ucci.ca

Fax: +1 905.831.5872

Fax: +49 2173 970-123Germany HALFEN GmbHLiebigstrasse 14 40764 Langenfeld

Phone: +49 2173 970-0 E-Mail: info@halfen.deWeb: www.halfen.de