Ramset RBRACE12-SET Engineered Bracing System User Guide

JULY 2023 – NZ ONLY
ReidBrace™ Design Guide

RBRACE12-SET Engineered Bracing System

This Document contains important user information with regards to the ReidBrace™ Engineered Bracing System
For more information on our products call 0800 72 67 38 Or go on our website ramset.co.nzReidBrace™
Engineered Bracing System
ReidBrace™ is an off the shelf, out of the box system that provides design engineers and installers with an economic solution for tension bracing of structures, tie-back applications, retrofits and temporary works bracing with proven performance.
ReidBrace™ utilises ReidBar™, a user friendly continuously threaded 500 grade reinforcing bar as the tension member. ReidBrace™ is a unique system that is as easy as screwing on a thread to install, minimising fabrication time.
Seismic Performance
ReidBrace™ has been tested and validated for Seismic Performance through an extensive test program at the University of Auckland’s Structural Test Laboratory. Technical Data
ReidBrace™

Boxed Set Contents

ReidBrace™ Boxed Set Contents

1. Reid™ Tension Spring
2. Reid™ Tab Washer
3. RBRACE
4. RBRACE-END
5. Full nut & Half nut
   full nut may be supplied in lieu of half nut, depending on product availability.
6. Pin and Clip

ReidBrace™ Boxed Set Kit Codes

Typical Applications

ReidBrace™
Benefits, Advantages and Features
Ease of Installation
ReidBrace™ is supplied in boxed sets, simple to install complete with step by step installation procedure.
Performance Tested

• ReidBrace™ has been performance tested as a system at the University of Auckland’s Structural Test Laboratory.

Simple to Design

• No welding nor custom design of bracing element. Furthermore, Ramset™ provides recommendations on steel cleat connection design.

Trusted ReidBar™ Tension Rod
ReidBrace™ utilises the 500E ReidBar™ reinforcing rod. Widely recognised and readily available in the market, ReidBar™ is locally manufactured by ACRS certified Infrabuild to AS/NZS 4671.

Quality Assured Products

• ReidBrace™’s banana fittings, end fittings and nuts are manufactured to ASTM A536 Grade 100-70-03 / ISO 1083 Grade 600-3 SG Iron by ISO 9001 accredited manufacturer.
• ReidBrace™ load bearing components are tensile tested to destruction at Ramset™ facility.

Design Data ReidBrace™

Structural Displacement Ductility Factor (µ)
Structural Category (NZS 3404 12.2.3) and maximum Structural Displacement Ductility Factor for design:

Diameter| S. Cat. 4 max µdes| S. Cat. 3 max µdes| S. Cat. 2 max µdes| S. Cat. 1 max µdes
---|---|---|---|---
12mm| 1| 1.25| 3| 5
16mm| 1| 1.25| 3| 5
20mm| 1| 1.25| 3| 5
25mm| 1| 1.25| —| —

*Please consider the behaviour of the overall structure when using higher ductility values.
Tensile Capacities – kN (ReidBrace TM System)
φNu = Reduced Characteristic Capacity (UTS Tested) where φ = 0.9
φNt = Limit State Design of System (Yield Theory) where φ = 0.9

Diameter| *Tested Capacity (φNu) per brace| Design Capacity (φNt) per brace
---|---|---
12mm| 63kN| 51kN
16mm| 112kN| 91kN
20mm| 180kN| 141kN
25mm| 255kN| 221kN

*Note: Tested Capacity demonstrates suitability of Recommended Design Capacity as per procedure of NZS 3404 C17.5 & AS/NZS 1170.0 Appendix B.
**Note: The Recommended Design Capacity is based on nominal yield strength of Grade 500E ReidBarTM used as part of the ReidBraceTM System.

Overstrength Factor

Overstrength loads have been determined following the principles of NZS 3404, based on the experimental testing undertaken.
The overstrength is to be resisted by the design capacity of secondary elements of the steel system, in a capacity designed system.

| S. Cat. 4 max µdes| S. Cat. 3 max µdes| S. Cat. 2 max µdes| S. Cat. 1 max µdes
---|---|---|---|---
Overstrength factor (φoms)| 1| 1.25| 1.3| 1.35

Equivalent Elastic Modulus

Test data has shown that the stiffness of the ReidBrace™ System is different from the theoretical Young’s Modulus of steel; in order to obtain more realistic results from the FEM model, it is recommended to adopt the proposed Equivalent Elastic Modulus.

32mm ReidBrace™

32mm was not included in the test program, due to machine capabilities in the testing facility, therefore, 32mm ReidBrace™ should be designed elastically (µ = 1).
The Design Capacity (including strength reduction factor Ø=0.9) for the 32mm ReidBrace™ system is φNt =361kN. This is based on the nominal yield strength of 500E grade ReidBar™.

Preloading Bracing System

Tension on structural bracing span should meet L/100 sag criteria. Ref:
HERA report R4-80 section 3.3.2
Woolcock, S T and Kitipornchai, S; Tension Members and Self-Weight; Steel Construction, Vol. 19, No. 1, May 1985, Australian Institute of Steel Construction.

Ply in Bearing Design Recommendations

The following are ply in bearing design capacities derived in conjunction with Associate Professor Charles Clifton based upon the University of Auckland testing programme. Numerous plate thicknesses and steel grades were considered to provide Design Engineers with options.
Refer to Charles Clifton letter summarising the testing performed at the University of Auckland. The following tables are based on φVb Ply in Bearing equal to or greater than Nov for the respective structural categories.
Nominal Load (ReidBrace™) – kN

12mm ReidBrace™

φVb  Ply in Bearing (kN)

Steel Grade| Thickness of cleat plate (mm)
10| 12| 14
G 250| 115| 138| 161
G 300| 120| 144| 169
G 350| 126| 151| 176

Legend:
= ReidBrace™ Nominal Load where
φoms = Overstrength Factor
= ReidBrace™ Overstrength Loads
= Yield stress
= Stress area of bar
= Suitable for structural category 4 (µ = 1.0)
= Suitable for structural category 3 & 4 (µ ≤ 1.25)
= Suitable for structures of every category
16mm ReidBrace™

φVb  Ply in Bearing (kN)

Steel Grade| Thickness of cleat plate (mm)
10| 12| 14| 15**
G 250| 115| 138| 161| 172
G 300| 120| 144| 169| 181
G 350| 126| 151| 176| 189

non standard plate thicknesses will require welding additional steel plate to increase overall cleat thickness
For hole to cleat edge distances, please refer NZS3404 clauses 9.6.2 & 12.9.4.4
20mm ReidBrace™**

φVb  Ply in Bearing (kN)

Steel Grade| Thickness of cleat plate (mm)
16| 18| 20
G 250| 230| 259| 287
G 300| 241| 271| 301
G 350| 252| 284| 315

25mm ReidBrace™

φVb  Ply in Bearing (kN)

Steel Grade| Thickness of cleat plate (mm)
20| 22| 25
G 250| 431| 474| 539
G 300| 452| 498| 566
G 350| 473| 521| 592

Technical Data

Product Specification –
Dimensions Of RBRACE (mm) RBRACE

Size| A| B| C| D1| D2| D3| H| W1| W2
---|---|---|---|---|---|---|---|---|---
16-Dec| 276| 36| 46| 17| 25| 19| 107| 16| 20
20| 345| 45| 58| 21| 32| 24| 134| 21| 25
25| 382| 53| 73| 31| 40| 29| 149| 26| 29
32| 436| 68| 72| 31| 44| 38| 170| 36| 36

Product Specification –
Dimensions Of RBRACE-END (mm) RBRACE-END

Additional notes:

• Testing follows the principles of AS/NZS 1170.0
• For detailing of the hole in the cleat, position & tolerance, refer to NZS 3404
• Service temperature of the ReidBrace™ system (from NZS 3404 & AS 4100), should be limited to -5ºC using the above information
• 3x 32mm HDG ReidBrace™ pin samples have been Charpy impact tested at 0°C with an average result of 140J.
• This document supersedes any previous publication

ReidBrace™
Material Data
ReidBrace™ Pin sizes (mm)

For applications requiring coupling system
When ReidBar™ bracing lengths need to be coupled, Reid Steel couplers need to be used. When using ReidBar™ Couplers for this application, Epcon™ C8 will be required only to install the coupler – not the ReidBrace™ End and the ReidBar™ Nut.

Part No.| Description| Hex A/F (mm)| Length (B) (mm)| Body Diameter (A) (mm)
---|---|---|---|---
RB12CS| 12mm Steel ReidBar™ Coupler| 26| 130| 32
RBA16CS| 16mm Steel ReidBar™ Coupler| 26| 136| 32
RB20CS| 20mm Steel ReidBar™ Coupler| 32| 148| 35
RB25CS| 25mm Steel ReidBar™ Coupler| 38| 193| 42
RB32CS| 32mm Steel ReidBar™ Coupler| 52| 242| 60
RB12CSG| 12mm Steel ReidBar™ Coupler (HDG)| 26| 130| 32
RBA16CSG| 16mm Steel ReidBar™ Coupler (HDG)| 26| 136| 32
RB20CSG| 20mm Steel ReidBar™ Coupler (HDG)| 32| 148| 35
RB25CSG| 25mm Steel ReidBar™ Coupler (HDG)| 38| 193| 42
RB32CSG| 32mm Steel ReidBar™ Coupler (HDG)| 52| 242| 60

ReidBrace™

Installation Guidelines

Step 1: Checks

1. Check if all RBRACE components are in the box.
2. Check if the RBRACE fitting flanges will fit onto the steel cleat.

Boxed Set Contents:

1. Reid™ Tension Spring
2. Reid™ Tab Washer
3. RBRACE
4. RBRACE-END
5. Pin and Clip
6. Full nut & Half nut
   full nut may be supplied in lieu of half nut, depending on product availability.

Step 2: Measure

1. Measure the centre to centre distance between the holes on the steel cleat.
2. Subtract the above length by A+B as per the following table. This is the length of ReidBar™ to be cut.

ReidBar ™ Size| RBRACE| A ± 5mm| RBRACE__-END| B ± 5mm| A + B (mm)
---|---|---|---|---|---
RB12| RBRACE12/16| 135| RBRACE12-END| 75| 210
RBA16| RBRACE12/16| 130| RBRACE16-END| 80| 210
RBA20| RBRACE20(A)| 170| RBRACE20-END(A)| 105| 275
RB25| RBRACE25| 175| RBRACE25-END| 125| 300
RB32| RBRACE32| 200| RBRACE32-END| 135| 335

*New Zealand only Australia only
Step 3: Assemble**

1. Insert ReidBar™ into the RBRACE-END fitting and tighten.
2. Insert ReidBar™ Half Nut into the other side of the bar, followed by inserting the tension spring.
3. Slide the RBRACE Fitting onto the ReidBar™, followed by inserting the tab washer onto the ReidBar™ with the tabs facing the nut.
4. Wind ReidBar™ Nut onto the ReidBar™ until it is flush with the end of the ReidBar™. This will give adjustability to the RBRACE fitting upon installation.

ReidBrace™
Installation Guidelines
Step 4: When coupling is required

1. Acquire ReidBar™ Steel Coupler & Epcon™ C8 Epoxy for the corresponding bar size
2. Inject the required amount of pumps of Epcon™ C8 into one side of the Steel Coupler. Start from the bottom of the thread and draw the nozzle out from the component in a rotating motion as the epoxy is being injected.
3. Screw the Steel Coupler onto the first ReidBar™, and tighten coupler using a wrench to ensure that the ReidBar™ is hard against the stop. Wipe excess filler with cloth/fabric/carton as applicable.
4. Inject the recommended number of pumps of Epcon™ C8 into one side of the Steel Coupler. Start from the bottom of the thread and draw the nozzle out from the component in a rotating motion as the epoxy is being injected.
5. Screw in the second ReidBar™ into the steel coupler, and tighten the bar using a wrench to ensure that the ReidBar™ is hard against the stop. Wipe excess filler with cloth/fabric/carton as applicable.

Step 5: Install

1. Lift the ReidBrace™ assembly into location.
2. Fix the RBRACE-END fitting onto the steel cleat using the pin supplied in the box set. Clip through hole in pin.
3. Place necessary means to prop the ReidBrace™ assembly so that the sag of the brace is not excessive. A sag of 1 in 100 is recommended as a maximum deflection (refer to HERA: Seismic Design of Steel Structures).
4. Fix the RBRACE fitting onto the steel cleat using the pin supplied in the box set. Fix clip through hole in pin.
5. Adjust the positions of the nuts so that the 1 in 100 maximum deflection criteria is met.
6. Tighten the Nut to fully compress the tension spring. Fold the tab washers onto the ReidBar™ Nut.

Step 6: Check

1. ReidBar™ is tightly fastened into the RBRACE-END fitting.
2. The deflection of the brace shall not exceed 1 in 100 of the brace length.
3. Tension spring is fully compressed.
4. Tab washer is folded onto the ReidBar™ Nut.
5. Supplied Pins and Clips are securely fixed to steel.
6. Steel cleat thickness must only allow 3mm gap each side of the ReidBrace™ fitting (or total maximum of 6mm in the case of horizontal/roof-bracing).
7. When coupler is used, ensure that installation & checks as per Step 4 has been carried out.

*Cyclic testing of ReidBrace™ has been carried out simulating horizontal/roof-bracing application. Therefore in the instance of horizontal/roof- bracing application, it is acceptable for the ReidBrace™ Fitting to sit flush against the steel fixture, as long as the total gap doesn’t exceed 6mm.
Design Tools
Ramset™ provides assistance for Engineers to choose a suitable anchoring solution which meets a project specific set of design inputs such as:

• Design tools for considering complex anchor layouts & calculating performance in grouped anchor configurations.
• Tailored outcomes to suit project specific anchoring and performance criteria.
• The latest design technology and performance calculation tools are available in hard copy or electronic format.

Specifiers Resource Book

This concise and systematically presented book contains the information most useful to Specifiers, Engineers and Architects when selecting the concrete anchoring solution that best suits their project.
Selection of a concrete anchoring product is made on the basis of the basic type of fixing (bolt, stud or internally threaded), macro environment, (e.g. coastal or inland), micro environment (particular chemicals) and of course the capacity that best meets the design load case.https://admin.ramset.mmginteractive.com.au/Resources/Library/rsc1315_20230621162342.pdf

Ramset™ iExpert™

• iExpert™ is our online anchoring design tool, which allows Engineers and design professional to work out the best product solutions for an application in line with AUS/NZ Standards.
• Featuring a simple 6 step design process, iExpert™ then provides a design report document once all the parameters have been assigned.
• Applications
• Cracked and uncracked concrete
• Seismic
• Fire

https://ramset.co.nz/Document/Detail/458/iExpert-Anchor-Design- Software

Project Case Study

OrbiPlate™ and ReidBrace™ Orams Marine Facility, Auckland, New Zealand

The Project
Project: Orams Marine
Product: 20mm OrbiPlate™
Main Contractor: MacRennie Construction Structural Engineer: Strata Group Consulting Engineers Ltd
Steel fabricator: Culham Engineering
Precast Fabricator: ConcreTec NZ
Crane company: Hi Lift
OrbiPlate™ and ReidBrace™ added strength and stability to this prestigious commercial construction project, saving time and money for the builders
For every glamorous activity, there is some hard work behind the scenes – something that makes everything work seamlessly and look easy. This is the case with the new Orams Marine Facility in Auckland.This huge new marine workshop is being constructed to provide increased maintenance facilities for Auckland’s ferries, fishing vessels and commercial vessels – and the occasional superyacht. It’s a large project, even involving a 110-tonne travelator to move the boats around. It’s due to be handed over on the first week of March 2023.
Why OrbiPlate™ was chosen Main contractor of the project, MacRennie Construction, chose 20mm OrbiPlate™ connectors to connect the steel to the precast panels.Working with steel fabricator, Culham Engineering, and precast fabricator ConcreTec NZ, the OrbiPlate™ connectors were essential to the efficiency of the build.
“We piled first, then we added footings, structural steel, then precast,” explains site manager Tony Watson of MacRennie Construction. “And our services are going on now .” OrbiPlate™ and ReidBrace™ Orams Marine Facility, Auckland, New Zealand
MacRennie Construction discussed the precast panel installation process with Luke Price, the design engineer from Strata Group Consulting Engineers Ltd, because they wanted the maximum tolerance they could get at the connection point of the structural steel and precast panels.
Price recommended OrbiPlate™ connectors, which are made of high tensile steel. The OrbiPlate™ system delivers 360 degrees connection tolerances of up to 20mm in structural connections. Quick and easy to install, it delivers fine locational accuracy when positioning steel members.
The OrbiPlate™ system streamlined the install process, reducing crane time and potential delays caused by misaligned connection points having to be remediated onsite while large panels were hanging on a crane.
This was the first time that MacRennie used the OrbiPlate™ system and after installing over #1000 units of them on this project, Watson said they were happy with the product and felt it was a good system.
“It was really effective,” he says. “Once the precasts were made, it was pretty straightforward.”
“ImacWusconf
ReidBrace™ in action
MacRennie also used Ramset’s ReidBrace™ on the project, which is one of their favourite and most-used Ramset™ products.
ReidBrace™ is an off-the-shelf system that provides design engineers and constructors with an economic solution for tension bracing of structures, tie- back applications and temporary works bracing.
“We use this product on 99% of our jobs and don’t have any issues with it,” says Watson.
Boost for Health and Safety
Because the team was working at heights throughout the build, having a faster and smoother install not only reduced costs, but it also reduced exposure to health and safety issues.
The site has more than 30 people working at most times of the day, so safety is a big challenge.
“It’s all up high,” says Watson. “It’s all on boom machines – there are 10 boom machines on site.
Working at heights is the biggest challenge for us, as well as the fact that everyone is in a small, confined area.” About OrbiPlate™
Ramset’s patented OrbiPlate™ system delivers orbital connection tolerances of up to 20mm in structural connections. OrbiPlate™ is quick and easy to install, delivering fine locational accuracy when positioning steel members.
About ReidBrace™
ReidBrace™ is an off the shelf, out of the box system that provides design engineers andconstructors with an economic solution for tension bracing of structures, tie-back applications, retrofits and temporary works bracing.
ReidBrace utilises ReidBar™, a user friendly continuously threaded 500 grade reinforcing bar as the tension member. ReidBrace is a unique system that is as easy as screwing on a thread to install, minimising fabrication time.
For more information,

|
---|---
https://www.youtube.com/watch?v=67iJ1FtfWEQ| https://ramset.com.au/Product/Detail/401/OrbiPlate-

Important Disclaimer: Any engineering information or advice (“Information”) provided by Ramset™ in this document is issued in accordance with a prescribed standard, published performance data or design software. It is the responsibility of the user to obtain its own independent engineering (or other) advice to assess the suitability of the Information for its own requirements. To the extent permitted by law, Ramset™ will not be liable to the recipient or any third party for any direct or indirect loss or liability arising out of, or in connection with, the Information.
Customer Service
Ramset™ New Zealand
Sales, Orders and Enquiries
Tel: 0800 726 738
Email: info@ramset.co.nz
Web: www.ramset.co.nz
Website:
www.ramset.co.nz Ramset™ Trade Centres

@ramsetnz
@ramsetnz
ramsetanz
ramsetanz
Ramset™ 1 Ramset Drive, Chirnside Park 3116
Information in this document is correct at the time of printing. Readers should contact Ramset™ or consult Ramset™ detailed technical information to ensure product is suitable for intended use prior to purchase. ITW Australia Pty Ltd ABN 63 004 235 063 trading as Ramset™
© Copyright 2023. ™ Trademarks of Cetram Pty. Ltd. Used under license by Ramset™
CB1297

Ramset™ ReidBrace™ Design Guide New Zealand

Documents / Resources

| Ramset RBRACE12-SET Engineered Bracing System [pdf] User Guide
RBRACE12-SET, RBRACE16-SET, RBRACE20-SET, RBRACE25-SET, RBRACE32-SET, RBRACE12-SET Engineered Bracing System, Engineered Bracing System, Bracing System, System
---|---

References

• Ramset - Products that make building easier
• Ramset - Products that make building easier

Read User Manual Online (PDF format)

Download This Manual (PDF format)

Download this manual  >>