Rigging Design Guide€¦ · CHECKLIST ADVICE ... This lab tested system uses high-quality code approved ASSY self tapping fasteners. ... The basic procedures proposed above contain

Rigging Design Guide

MyTiCon Timber Connectorswww.myticon.com | 1.866.899.4090 | [email protected]© 2019 by MyTiCon Timber Connectors Inc.

Rigging Design Guide

Copyright © 2019 by MyTiCon Timber Connectors Inc.

All rights reserved. This document or any portion thereof may not be reproduced or used in any manner whatsoever without the expressed written permission of the publisher.

The information contained in this document is for general information purposes. We advice the user that all rigging and panel material handling procedures conducted with the system outlined in this document are to be approved by a qualified design professional familiar with the governing site conditions and the conditions of the system. All rigging must follow the governing work safety rules of the users province, state or country. While we aim to keep the information provided in this document complete, accurate, up to date and in accordance with applicable design standards, we can not make warranties of any kind.

Images and drawings provided are for reference only and can not be applicable to all conditions that may occur on site. Any reliance you place on such information is therefore strictly at your own risk. In no event will we assume liability for any loss or damage including and without limitation, indirect or consequential loss or damage, or any loss or damage whatsoever arising from loss of profits arising out of, or in connection with the use of the system. Through the use of the document and system you are able to derive other uses which are outside of our control. The inclusion of the system or the implied use of the document to other applications is outside of our responsibility.

The guide is valid until December 31st, 2019 and relies on information available at time of the development of the guide.

TABLE OF CONTENTSTHE YOKE RIGGING SYSTEM .................................................................................................................. 4

Tested Solutions .................................................................................................................................... 4

YOKE RIGGING SYSTEM - SELECTION TOOL ........................................................................................ 5

HOW TO USE THIS GUIDE ........................................................................................................................ 6

NOTES TO THE DESIGNER ...................................................................................................................... 7

STEP 1: FACTORING TOTAL LOAD ......................................................................................................... 8

STEP 2: YOKE SYSTEM SELECTION ...................................................................................................... 9Step 2 Option A: Light Frame Panel Rigging ........................................................................................ 9

Structural Insulated Roof Panels .................................................................................................... 9Prefabricated I-Joist Floor Panels ................................................................................................ 10Prefabricated Stud Walls ...............................................................................................................11

Step 2 Option B: CLT Floor / Roof Panels .......................................................................................... 12Step 2 Option C: CLT Wall Panels ...................................................................................................... 14Step 2 Option D: Glulam Beams ......................................................................................................... 15

STEP 3: SAFETY CHECKS ...................................................................................................................... 16Step 3 Check 1: Screw Penetration .................................................................................................... 16Step 3 Check 2: Yoke System Capacity .............................................................................................. 17

RIGGING CONSIDERATIONS .................................................................................................................. 18Sling Angles ........................................................................................................................................ 18Load Spreading .................................................................................................................................. 19

ON-SITE CONSIDERATIONS ................................................................................................................... 20Recommended Workflow .................................................................................................................... 20Pre-fabricated Jigs .............................................................................................................................. 21Magnetic Socket ................................................................................................................................. 21

ANNEX - DETAILING ................................................................................................................................ 22

CHECKLIST ADVICE ................................................................................................................................ 23

TO THE USER

Rigging Considerations

Step 2.A: Light Frame Panel Rigging p. 9 - 11

Step 2.B: CLT Floor/Roof Panel Rigging

Step 3: Safety Checks

On-Site Considerations

Step 2.D: Glulam Beam Rigging

Step 2.C: CLT Wall Panel Rigging

p. 12 - 13

p. 14

p. 15

p. 16 - 17

Step 2: Yoke System Selection

p. 18 - 19

p. 8

p. 20 - 21

Step 1: Factoring Total Load

Annex - Detailing p. 22

“Build Strong, Build Sustainable, Build the Future”

MyTiCon is a specialty supplier of connection systems for modern wood and mass-timber applications in commercial, industrial and residential projects. We are proud to be working with the most innovative partners on cutting-edge projects across North America.

Our goal is to see the wood construction industry thrive and help to maintain a low carbon footprint through education, research, and cost-effective approaches.

More than 450 timber connection systems are stocked and ready for delivery throughout North America.

We do extensive research with leading North American universities to innovate ways to connect wood, reduce costs and extend the reach of mass timber into the market.

WE ARE CURIOUS, WE FUND

WE ARE A DISTRIBUTOR, WE SUPPLY

We offer free educational sessions on mass timber solutions in forms of webinars, technical learning sessions and event participation throughout North America.

WE ARE SUPPORTVE, WE EDUCATE

You deserve the support you need to design your connections. Our North American team is ready to connect with you and answer your questions. You can reach our Support Team at:

[email protected]

WE ARE COLLABORATIVE, WE GUIDE

General Information p. 4 - 7

3

THE YOKE RIGGING SYSTEMThe Yoke rigging system is a one of a kind rigging system from MyTiCon, designed to lift various timber elements. This lab tested system uses high-quality code approved ASSY self tapping fasteners. The Yoke anchor configurations and the fast installation of the fasteners make this system one of the most efficient mass timber panel rigging systems on the market. The figures below provide an overview of the Yoke systems available.

The Yoke Rigging System is a complete tested solution for mass timber rigging. All components of the system have undergone testing up to the ultimate failure using North American timber materials.

In addition, all fasteners used in this system hold ICC and CCMC approvals and have been used in many prominent mass timber projects across North America.

Tested Solutions

Mini Yoke Yoke 1T Yoke 5T Yoke XL

The Yoke System Used for Brock Common Tallwood House

4

Gen

eral

Info

rmat

ion

The following pre-selection table is intended to give the designer and builder an overview of the different rigging scenarios and Yoke Rigging systems available. The table lists the allowable lifting capacities for common scenarios.

For more information on a specific rigging scenario, the appropriate sections should be consulted. When lifting with the Yoke Rigging system, other lifting requirements, such as geometry requirements and potential rigging hazards should be considered.

YOKE RIGGING SYSTEM - SELECTION TOOL

Mini Yoke Yoke 1T Yoke 5T Yoke XL

Structural Insulated Panel

Prefabricated I-Joist Floor

Prefabricated Stud Wall

CLT Panel up to 3,700 lbs[1]




Glulam Beam Rigging

Notes: [1] Unfactored weight for CLT floor or roof panel rigging with 4 anchors and standard rigging scenario.[2] Unfactored weight for CLT wall panel rigging with 2 anchors and standard rigging scenario.

Option A:Light Panel Rigging

Option B:Floor / Roof Panel Rigging

Option C:Wall Panel Rigging

Option D:Beam Rigging

Table 1, Yoke Rigging Anchor Selection Tool

5

General Inform

ation

HOW TO USE THIS GUIDE

Preparing a Rigging Plan

Note:The basic procedures proposed above contain the steps recommended for the licenced design professional to prepare a rigging plan.

Step 1: Factoring Total Load

Option A - Light Frame Panel Rigging

Determine the total factored load (Wf) based on the weight of the panel and rigging conditions.

Rigging ConsiderationsIn order to ensure safe rigging operation, special attention should be given to the following:

• Factored load of the rigged element (Wf)• Maximum anchors capacity (Nr)• Maximum capacity of slings, ropes, connection

points and other hardware (Please refer to your respective rigging equipment provider or the rigging engineer's suggestions)

In order to ensure stable rigging with appropriate load sharing, the center of gravity shall be determined and locations of the anchors shall be chosen accordingly. All rigging shall be done by qualified personnel only. Before each lift, all hardware shall be checked for possible defects, material fatigue or abrasion.

Step 2: Yoke Rigging System SelectionDetermine the type of rigging needed, this guide provides solutions for 4 options:

Step 3: Safety Checks

Check 1 - Screw Penetration CheckCheck that the screws will penetrate as many plies or wood material as possible and a minimum clearance of 10mm is respected to avoid through penetrations.

Check 2 - Yoke System Capacity CheckCheck that the anchors capacity (Nr) exceeds the total factored load (Wf) of the lifted element.

Option C - CLT Wall Panel Rigging

Option B - CLT Floor/Roof Panel Rigging

Option D - Glulam Beam Rigging

Solution for pre-fabricated I-Joist floor

Solution for CLT floor and roof panel

Solution for Glulam beamSolution for CLT wall panel

Solution for SIP roof panel

Solution for pre-fabricated stud wall

6

Gen

eral

Info

rmat

ion

NOTES TO THE DESIGNER1. All rigging elements shall be approved by a licensed

design professional. It is the responsibility of the rigger to ensure a safe work environment and verify the condition of all equipment. All suggestions and details shown are to be treated as general and can not be assumed to be valid for all construction requirements and specific site conditions.

2. In this guide, the term “Yoke” refers only to the Yoke itself, while the term “anchor” refers to the yokes and the screws as a system. The capacity of the Yoke represents the upper limit in terms of capacity per anchor, while the basic factored resistance of the anchor (N’r) takes into account the capacity of the screws.

3. Rigging capacity:

• The total capacity of the anchors (Nr), resolved into the vertical components, must be greater than the total factored load (Wf) of the rigged element.

• To ensure full connection capacities, fasteners should penetrate panel plies to the largest extent possible, with a minimum of three plies penetrated.

• For light frame panel rigging, the minimum penetration and wood panel thickness should be respected.

4. Anchor placement:

• End and edge distance requirements must be respected.

• Additional moment equilibrium calculations are required to determine the proportion of the total factored load shared by each anchor for situations where anchors are not spaced equidistant around the center of gravity.

• The placement of the anchors should not exceed the maximum span of the lifted element, in accordance with the structural engineer's specifications.

5. Rigging slings and load spreader:

• Slings must lift elements at a minimum angle of 60° measured between the sling and the panel surface (β). Otherwise, the capacity of the anchors shall be adjusted with the appropriate sling angle reduction factor (RAR) given in Table 14.

• Sling angles shall not exceed 30° measured between the sling and the vertical (λ),

• A load spreader/compensation system shall be used for lifts using more than two anchors. Otherwise, the capacity of the anchors shall be adjusted with the appropriate load spreader reduction factor (RLS) or other appropriate engineering judgement.

Table 2, Fastener Torsional Strength

S-P-F Douglas FirG = 0.42 G = 0.49

6. Rigging condition requirements:

• Before each lift, check to see that the sling is properly attached.

• The load line should be brought over to the element’s center of gravity before the lift.

• No object or person should be present on the panels when rigged (no live load).

• Suspended loads should be securely slung and properly balanced before they are set in motion.

• The load must be kept under control at all times.The use of taglines is recommended to prevent uncontrolled motion.

• Loads must be safely landed and properly blocked before unhooking and unslinging the panels.

• No overhead lifting at anytime.

7. To ensure safety and proper capacity, the fasteners used for panel rigging must only be used once. Proper inspection should be performed frequently to ensure the structural integrity of the anchors. If any damage or failure is noticed, stop using the anchors immediately.

8. The maximum installation torque of the screws are as follows:

Screw Diameter1/4” 3/8” 1/2”

[6mm] [10mm] [12mm]

Maximum Torque5.4 ft.lbf 27.8 ft.lbf 34.9 ft.lbf

[7.3 N.m] [37.7 N.m] [47.3 N.m]

9. Assigned relative dentities (G) are:

7

General Inform

ation

Ste

p 1:

Fac

torin

g To

tal L

oad

STEP 1: FACTORING TOTAL LOADDetermining the total factored load (Wf) of the rigged element is essential. Actual loads must be factored up. The proposed method incorporates a dead load factor (1.4), a dynamic acceleration factor, and an optional safety factor to consider in each rigging scenario. In all cases, the total factored load (Wf) shall be specified and approved by a licensed design professional.

Wf = 1.4 ∙ W ∙ KOS ∙ Kv

W Unfactored weight of the rigged element [kN or lbs] :

KOS Optional safety factor :

• For rig mat rigging 1• For open space rigging 1.2• For tight space rigging 1.3

The unfactored weight of the element (W) is usually provided in shop drawings or the panel manufacturer’s specifications. Table 3 provides recommended dynamic acceleration factors (Kv) subject to approval by the licensed design professional.

Table 3, Proposed Dynamic Acceleration Factor, Kv

Sources:1. Pfeifer, Snaam, Halfen, Peikko, Arteon

In cases where information on weight is not provided, a calculation based on the dimensions and the wood species may be done to estimate the unfactored weight:

W = (h ∙ b ∙ l) ∙ G ∙ C’

h Element thickness [mm]b Element width [m]

Element length [m]G

C’ Unit conversion factor [1] :

• For pounds (lbs) 2.54• For kilonewtons (kN) 11.3 ∙ 10-3

(eq.1)

Note:[1] The unit conversion factor contains adjustments from oven dry to standard dry service condition moisture content.

(eq.2)

Kv Dynamic acceleration factor :

l

Assigned relative densities :

• For SPF 0.42• For D-Fir 0.49

Crane Type Dynamic Acceleration Factor [Kv]

Fixed crane 1.1 to 1.3

Mobile crane 1.3 to 1.4

Bridge crane 1.2 to 1.6

Rigging and moving on flat terrain 2 to 2.5

Rigging and moving on rough terrain 3 to 4

8

Step 2.A

: Light Frame P

anel Rigging

Notes: 1. Basic factored resistance values (N’r) listed are only valid for limit state design in Canada.2. Basic factored resistance values (N’r) listed need to be factored with appropriate reduction factors, described on page 8.3. Basic factored resistance values (N’r) listed are valid for a minimum sling angle to the panel (β) of 60°.4. Basic factored resistance values (N’r) listed are only valid with listed ASSY screws. 5. The resistance of ASSY screws can only be assured for a single use. New screws are to be used for each lift.6. The right ASSY screw length should be chosen to penetrate the OSB board to the largest extent possible with the threaded portion of the fastener.7. The maximum installation torque of ASSY screws shall not exceed the fastener torsional strength, described on page 7, table 2.

Structural Insulated Roof PanelsTable 4, Basic Factored Resistance Values for SIP Roof Panel Rigging Using Mini Yoke (N’r )

STEP 2: YOKE SYSTEM SELECTION

Step 2 Option A: Light Frame Panel Rigging

[95 mm]3-3/4”

[95 mm]3-3/4”

tOSB

End And Edge Distance RequirementsWhen rigging structural insulated panels, the minimum end and edge distances are as follows:

Rigging Device Relative Density

Min OSBThickness (tOSB) Fastener Designation Basic Factored

Resistance Value (N’r)

G in. [mm] in. [mm] lbs. kN

Mini Yoke ; 8 screws0.42

0.43" [11] SK 1/4" x 2-3/8" [6 x 60] 141 0.63

0.49

9

Ste

p 2.

A: L

ight

Fra

me

Pan

el R

iggi

ng

Notes: 1. Basic factored resistance values (N’r) listed are only valid for limit state design in Canada.2. Basic factored resistance values (N’r) listed need to be factored with appropriate reduction factors, described on page 8.3. Basic factored resistance values (N’r) listed are valid for a minimum sling angle to the panel (β) of 60°.4. Basic factored resistance values (N’r) listed are only valid with listed ASSY screws. 5. The resistance of ASSY screws can only be assured for a single use. New screws are to be used for each lift.6. The right ASSY screw length should be chosen to penetrate the OSB board to the largest extent possible with the threaded portion of the fastener.7. The maximum installation torque of ASSY screws shall not exceed the fastener torsional strength, described on page 7, table 2.8. The Mini Yoke must only be placed on the I-joist flange. The capacity of the Mini Yoke placed on locations other than the flange cannot be guaranteed. 9. Fasteners used with the Mini Yoke anchor must properly penetrate the I-joist flange of the prefabricated I-joist floor.

Prefabricated I-Joist Floor Panels

The Mini Yoke fastener pattern is specifially designed to be placed on the the flange of I-Joist members.This special pattern accomodates most narrow flange sizes and materials.

Table 5, Basic Factored Resistance Values for Prefab. I-Joist Floor Rigging Using Mini Yoke (N’r )

[45 mm]1 - 3/4"

[95 mm]3 - 3/4”

When rigging prefabricated I-joist floors, the minimum end and edge distances are as follows:

End And Edge Distance Requirements


Min Flange Thickness, tf

Fastener Designation Basic Factored Resistance Value (N’r)


Mini Yoke ; 8 screws0.42

1.5" [38] SK 1/4" x 2-3/8" [6 x 60] 715 3.18

0.49

tOSBtf

15mm ≤ tOSB ≤ 18mm

10

Step 2.A

: Light Frame P

anel Rigging


Minimum PenetrationThickness, t Fastener Designation Basic Factored



Yoke 1T ; 2 screws0.42

3" [76] VG CSK 3/8" x 4" [10 x 100] 1,245 5.54

0.49

Notes: 1. Basic factored resistance values (N’r) listed are only valid for limit state design in Canada.2. Basic factored resistance values (N’r) listed need to be factored with appropriate reduction factors, described on page 8.3. Basic factored resistance values (N’r) listed are valid for a minimum sling angle to the panel (β) of 60°.4. Basic factored resistance values (N’r) listed are only valid with listed ASSY screws. 5. The resistance of ASSY screws can only be assured for a single use. New screws are to be used for each lift.6. The maximum installation torque of ASSY screws shall not exceed the fastener torsional strength, described on page 7, table 2.7. The minimum member thickness for proper fastener penetration as stated in Table 6 must be respected.8. All sheathing, blocking, sill, and top plates should be nailed or screwed appropriatly for continous load path.9. No panel tilt up.

Prefabricated Stud WallsTable 6, Basic Factored Resistance Values for Prefab. Stud Wall Rigging Using Yoke 1T (N’r )

t

[95 mm]3 - 3/4”

[32 mm]1 - 1/4”

End And Edge Distance RequirementsWhen rigging prefabricated stud walls, the minimum end and edge distances are as follows:

11

Ste

p 2.

B: C

LT F

loor

/Roo

f Pan

el R

iggi

ng

Table 7, Basic Factored Resistance Values for Flat CLT Panel Rigging Using Yoke 1T (N’r )

Table 8, Basic Factored Resistance Values for Flat CLT Panel Rigging Using Yoke 5T (N’r )

Notes: 1. Basic factored resistance values (N’r) listed are only valid for limit state design in Canada.2. Basic factored resistance values (N’r) listed need to be factored with appropriate reduction factors, described on page 8.3. Basic factored resistance values (N’r) listed are valid for a minimum sling angle to the panel (β) of 60°.4. Basic factored resistance values (N’r) listed are only valid with listed ASSY screws. 5. The resistance of ASSY screws can only be assured for a single use. New screws are to be used for each lift.6. The maximum installation torque of ASSY screws shall not exceed the fastener torsional strength, described on page 7, table 2.

Step 2 Option B: CLT Floor / Roof Panels


Rigging Device Relative Density Panel Thickness Fastener Designation Basic Factored



Yoke 1T ; 2 screws

0.42

3-1/8” [78]

Kombi

1/2” x 3-1/8” [12 x 80] 1,600 7.1

4” [100] 1/2” x 4” [12 x 100] 1,600 7.1

4-3/4” [120] 1/2” x 4-3/4” [12 x 120] 1,900 8.5

6-1/4” [160] 1/2” x 6-1/4” [12 x 160] 2,200 9.8

0.49

3-1/8” [78]

Kombi

1/2” x 3-1/8” [12 x 80] 2,100 9.3

4” [100] 1/2” x 4” [12 x 100] 2,100 9.3

4-3/4” [120] 1/2” x 4-3/4” [12 x 120] 2,150 9.6

6-1/4” [160] 1/2” x 6-1/4” [12 x 160] 2,200 9.8




Yoke 5T ; 4 screws

0.42

3-1/8” [78]

Kombi

1/2” x 3-1/8” [12 x 80] 2,800 12.5

4” [100] 1/2” x 4” [12 x 100] 2,800 12.5

4-3/4” [120] 1/2” x 4-3/4” [12 x 120] 3,900 17.3

6-1/4” [160] 1/2” x 6-1/4” [12 x 160] 7,000 31.1

0.49

3-1/8” [78]

Kombi

1/2” x 3-1/8” [12 x 80] 3,100 13.8

4” [100] 1/2” x 4” [12 x 100] 3,100 13.8

4-3/4” [120] 1/2” x 4-3/4” [12 x 120] 4,300 19.1

6-1/4” [160] 1/2” x 6-1/4” [12 x 160] 7,700 34.3

12

Step 2.B

: CLT Floor/R

oof Panel R

igging




Yoke XL ; 4 screws

0.42

3-1/8” [78] Ecofast 3/8” x 3-1/8” [10 x 80] 2,300 10.2

4” [100]VG CSK

3/8” x 4” [10 x 100] 3,500 15.6

6-1/4” [160] 3/8” x 6-1/4” [10 x 160] 6,300 28.0

0.49

3-1/8” [78] Ecofast 3/8” x 3-1/8” [10 x 80] 2,500 11.1

4” [100]VG CSK

3/8” x 4” [10 x 100] 4,000 17.8

6-1/4” [160] 3/8” x 6-1/4” [10 x 160] 7,000 31.1

Yoke XL ; 8 screws

0.42

3-1/8” [78] Ecofast 3/8” x 3-1/8” [10 x 80] 4,300 19.1

4” [100]VG CSK

3/8” x 4” [10 x 100] 6,700 29.8

6-1/4” [160] 3/8” x 6-1/4” [10 x 160] 10,100 44.9

0.49

3-1/8” [78] Ecofast 3/8” x 3-1/8” [10 x 80] 4,800 21.4

4” [100]VG CSK

3/8” x 4” [10 x 100] 7,600 33.8

6-1/4” [160] 3/8” x 6-1/4” [10 x 160] 10,500 46.7

Yoke XL ; 12 screws

0.42

3-1/8” [78] Ecofast 3/8” x 3-1/8” [10 x 80] 6,600 29.4

4” [100]VG CSK

3/8” x 4” [10 x 100] 10,400 46.3

6-1/4” [160] 3/8” x 6-1/4” [10 x 160] 10,900 48.5

0.49

3-1/8” [78] Ecofast 3/8” x 3-1/8” [10 x 80] 7,300 32.5

4” [100]VG CSK

3/8” x 4” [10 x 100] 10,600 47.2

6-1/4” [160] 3/8” x 6-1/4” [10 x 160] 11,000 48.9

Table 9, Basic Factored Resistance Values for Flat CLT Panel Rigging Using Yoke XL (N’r )

Notes: 1. See notes under table 8.2. For the different screw options of the Yoke XL system, the screws must be placed in the indicated holes in table 9.

End and Edge Distance Requirements

[150 mm]5-7/8”

[150 mm]5-7/8”

[150 mm]5-7/8”

[270 mm]10 - 5/8”

[270 mm]10 - 5/8”

[270 mm]10 - 5/8”

13

Ste

p 2.

C: C

LT W

all P

anel

Rig

ging

Rigging Device Relative Density Min Panel Thickness Fastener Designation Basic Factored



Yoke XL ; 12 screws0.42 3-1/2” [87] VG CSK 3/8” x 6-1/4” [10 x 160] 2,800 12.4

0.49 3-1/2” [87] VG CSK 3/8” x 6-1/4” [10 x 160] 3,100 13.8

Table 10, Basic Factored Resistance Values for CLT Wall Panel Rigging Using Yoke XL (N’r )


For wall panel rigging on the narrow edge of CLT panels, the Yoke XL is used, as it uses small diameter fasteners. The reduced edge distance requirements below are a minimum, and apply to the Yoke XL only.

Step 2 Option C: CLT Wall Panels

Tilting up wall panels with the Yoke XL

[270 mm]10 - 5/8”

[32 mm]1-1/4”

End And Edge Distance Requirements

Panel bearing

14

Step 2.D

: Glulam

Beam

Rigging

Rigging Device Relative Density Min Beam Width Fastener Designation Basic Factored



Yoke 1T ; 2 screws0.42 6-5/8” [168] Kombi

1/2” x 4-3/4” [12 x 120] 1,900 8.5

1/2” x 6-1/4” [12 x 160] 2,200 9.8

0.49 6-5/8” [168] Kombi1/2 x 4-3/4” [12 x 120] 2,150 9.6

1/2 x 6-1/4” [12 x 160] 2,200 9.8

Rigging Device Relative Density Min Beam Width Fastener Designation Basic Factored



Yoke XL ; 4 screws0.42 5-1/8” [130] VG CSK

3/8” x 4” [10 x 100] 3,500 15.6

3/8” x 6-1/4” [10 x 160] 6,300 28.0

0.49 5-1/8” [130] VG CSK3/8” x 4” [10 x 100] 4,000 17.8

3/8” x 6-1/4” [10 x 160] 7,000 31.1

Yoke XL ; 12 screws0.42 5-1/8” [130] VG CSK

3/8” x 4” [10 x 100] 10,400 46.3

3/8” x 6-1/4” [10 x 160] 10,900 48.5

0.49 5-1/8” [130] VG CSK3/8” x 4” [10 x 100] 10,600 47.2

3/8” x 6-1/4” [10 x 160] 11,000 48.9

Table 11, Basic Factored Resistance Values for Glulam Beam Rigging Using Yoke 1T (N’r )

Table 12, Basic Factored Resistance Values for Glulam Beam Rigging Using Yoke XL (N’r )

Notes: See notes under table 12

Notes: 1. Basic factored resistance values (N’r) listed are only valid for limit state design in Canada.2. Basic factored resistance values (N’r) listed need to be factored with appropriate reduction factors, described on page 8.3. Basic factored resistance values (N’r) listed are valid for a minimum sling angle to the panel (β) of 60°.4. Basic factored resistance values (N’r) listed are only valid with listed ASSY screws. 5. The resistance of ASSY screws can only be assured for a single use. New screws are to be used for each lift.6. The maximum installation torque of ASSY screws shall not exceed the fastener torsional strength, described on page 7, table 2.7. For the different screw options of the Yoke XL system, the screws must be placed in the indicated holes in table 9.

Step 2 Option D: Glulam Beams

End and Edge Distance Requirements

[270 mm]10 - 5/8”

[270 mm]10 - 5/8”

[84 mm]3 - 5/16” [50 mm]

2”

15

Ste

p 3:

Saf

ety

Che

cks

STEP 3: SAFETY CHECKS

Fastener length is often limited by the thickness of the rigged element. While it is recommended that the screws should penetrate as many plies as possible, a minimum clearance of 10mm is recommended to avoid through penetration. The following table provides suggested fastener lengths for most common North American CLT thicknesses.

Table 13, ASSY Screw Length Suggestion According to Panel Thickness

Notes: 1. Fastener lengths are suggestions only and can be adapted to fit certain site conditions and rigging needs. 2. The thread embedment length on the fastener determines the capacity of each system.

Kombi 1/2" x 6-1/4"

Kombi 1/2" x 4-3/4"

Kombi 1/2" x 4"

Kombi 1/2" x 3-1/8"

VG CSK 3/8" x 6-1/4"

VG CSK 3/8" x 4"

Ecofast 3/8" x 3-1/8"

SK 1/4" x 2-3/8"

Step 3 Check 1: Screw Penetration

CLT Panel Type Yoke Type

Thickness Yoke 1T Yoke 5T Yoke XL

in [mm] Screw in. [mm] Screw in. [mm] Screw in. [mm]

3 PL

Y

3-1/8” [78]

Kombi 1/2” x 3-1/8” [12x80] Kombi 1/2” x 3-1/8” [12x80]Ecofast 3/8” x 3-1/8” [10x80]

3-3/8” [87]

3-1/2” [89]

VG CSK 3/8” x 4” [10x100]4” [100]

Kombi 1/2” x 4” [12x100] Kombi 1/2” x 4” [12x100]4-1/8” [105]

4-3/4” [120] Kombi 1/2” x 4-3/4” [12x120] Kombi 1/2” x 4-3/4” [12x120]

5 PL

Y

4” [100] Kombi 1/2” x 4” [12x100] Kombi 1/2” x 4” [12x100]

VG CSK 3/8” x 4” [10x100]

4-3/4” [120]

Kombi 1/2” x 4-3/4” [12x120] Kombi 1/2” x 4-3/4” [12x120]5-1/8” [131]

5-1/2” [139]

5-5/8” [143]

6-1/4” [160]

Kombi 1/2” x 6-1/4” [12x160] Kombi 1/2” x 6-1/4” [12x160] VG CSK 3/8” x 6-1/4” [10x160]6-7/8” [175]

7-1/8” [180]

7-7/8” [200]

7 PL

Y

4-3/8” [111] Kombi 1/2” x 4” [12x100] Kombi 1/2” x 4” [12x100] VG CSK 3/8” x 4” [10x100]

7-1/2” [191]

Kombi 1/2” x 6-1/4” [12x160] Kombi 1/2” x 6-1/4” [12x160] VG CSK 3/8” x 6-1/4” [10x160]

7-3/4” [197]

8-3/8” [213]

8-5/8” [220]

9-5/8” [245]

16

Step 3: S

afety Checks

Nr = N’r ∙ n ∙ RAR ∙ RLS ∙ RD

N’r

Nr

Basic factored resistance per anchor (provided in design tables)Anchor capacity

n Number of anchors usedRAR Sling angle (β) reduction factor:

• For sling angles ≥60° to the panel surface 1.0• For one [or more] sling angles <60° to the panel surface

RLS Load spreader reduction factor:

• For n = 2 1.0• For n = 4, with adequate load spreader/compensation device 1.0• For n = 4, without adequate load spreader/conpensation device 0.5

RD Load duration reduction factor:

• Short term rigging (<10 min) 1.0• Long term rigging (>10 min) 0.86

β 50° 40° 30° 20° 10° 0°

RAR 0.80 0.65 0.55 0.45 0.35 0.30

Table 14, Reduction Factor for Sling Angles β<60°

βaβb

βc βd

λa λb

λc λd

Step 3 Check 2: Yoke System Capacity

(eq.3)

17

Rig

ging

Haz

ards

RIGGING CONSIDERATIONS

Tabulated basic factored resistance values (N’r) are valid for rigging scenarios with a minimum sling angle (β) measured between the sling and the panel surface of 60°. Additionally, the angle (λ) measured between the vertical and the sling, must be smaller than 30°.

15°

50°

25° 75°

30°

Sling Angles

Example of Panel Angled at 15°

βλ

S

L

β

λ

S

L

βλ

For cases where the sling angle (β) is less than 60°, an appropriate reduction factor (RAR) must be applied to the capacity of the anchors (Nr).

18

Rigging H

azards

Load Spreading When using more than two anchors, it is important to ensure that uneven load sharing does not occur. Without an adequate load spreader/compensation system, only two slings may carry the entire load, with the remaining slings hanging slack. In such cases, a reduction factor RLS = 0.5 will need to be applied to the the capacity of the anchors (Nr).

When lifting CLT floor panels using load spreader or compensation devices as seen below, even load share may be assumed.

When lifting CLT wall panels, load spreaders can be used to further stabilize the load while increasing the sling angle (β).

For Floor Panels For Wall Panels

Example 1 Example 2

19

On-

site

Con

side

ratio

ns

Recommended Workflow

ON-SITE CONSIDERATIONS

The prefabrication of various mass timber elements allow for a fast and efficient installation on-site. The majority of mass timber element manufacturers provide sequencing of material, with the trucks arriving in the sequence the elements are set to be installed. When rigging the elements, it is crucial to keep up with the material workflow on-site by steadily unloading truck beds and maximizing crane efficiency.

4

It is recommended to follow a circular workflow, using 4 sets of rigging hardware, reducing delays on-site.

1 set is used for rigging the panel into place

1 set is transported back to the truck1 set is unmounted from the panel in place

1 set is installed on the panel on the truck bed1 2

3 4

20

On-site C

onsiderations

Pre-fabricated JigsFor repetitive lifts, a jig can be made to assure correct placement and even load sharing between the rigging hardware. The jig also allows for a faster installation on bigger projects.

A magnetic socket can be used for a faster installation of the ASSY Kombi screws used with the Yoke 1T and the Yoke 5T. With the built-in magnet, it is simple to place the screw head inside the socket and drill in the self-tapping screw.

Magnetic Socket

21

Ann

ex -

Det

ailin

g

ANNEX - DETAILING

98 mm

72 mm

50 mm

14 mm

89 mm

12 mm

12 mm

22 mm

74 mm

43 mm190 mm

190 mm

61 mm

64 mm

40 mm

40 mm

16 mm

22 mm

74 mm

43 mm

61 mm

90 mm

380 mm

50 mm50 mm

30 mm

30 mm

30 mm

30 mm

Yoke 1T Anchor Specifications

Yoke 5T Anchor Specifications

Yoke XL Anchor Specifications

Mini Yoke Anchor Specifications

29 mm

22mm102 mm

25 mm

38 mm

204 mm

Notes: 1. Dimensions are not to scale

14 mm

55mm

27mm6 mm

22

Factoring Total Loads

Anchor Selection

Safety Checks

Rigging Hazards

Identify unfactored element weight

Is the weight factored up with correct modification factors?

Apply dead load factor

Apply dynamic acceleration factor

Apply optional safety factor

Is the capacity per anchor enough to lift the element?

Is the correct fastener length and type used?

Is the element minimum thickness for lifting respected?

Are end and edge distance requirements satisfied?

Is the correct number of Yoke anchors used?

Is the angle (β) measured between the sling and the panel surface greater than 60°?

Is the angle (λ) measured between the vertical and the sling smaller than 30°?

Is the load rating of the slings greater than the angled force component?

Is even load sharing between the anchors assured?

Is the center of gravity below the upper pick point of the crane?

Are the fasteners new? Fasteners must only be used once!

Is all rigging hardware installed properly and double checked?

Is the surrounding area clear and safe?

Is the rigging element secured with tag lines?

Does the current wind condition allow for safe rigging?

Is the intended location prepared to accept the rigged material?

Is the panel fully secured with no load on the rigging slings?

Are used fasteners disposed of correctly to avoid reusing it for the next rigging applications?

Wf

CHECKLIST ADVICE

Contact [email protected]

Technical [email protected]

MyTiCon Timber Connectorswww.myticon.com

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Documents

Rigging Design Guide€¦ · CHECKLIST ADVICE ... This lab tested system uses high-quality code approved ASSY self tapping fasteners. ... The basic procedures proposed above contain