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	SECTION 05155
	TENSION ROD SYSTEMS
	** NOTE TO SPECIFIER ** Decon USA; design, manufacture and supply of threaded rod systems. . This section is based on the products of Decon USA, which is located at:
	10 Waterman Ave. P. O. Box 1486 Sonoma, CA 95476-3467 Toll Free Tel: (866)DECON-US Tel: (707) 996-5954 Fax: (707)939-9024 Email: Web: www.deconusa.com [ Click Here ] for additional information.
	Decon® USA Inc is the exclusive representative of Macalloy for North America. Macalloy Ltd. has been the leader in the design, manufacture and supply of threaded rod systems since 1948. In 1980's it pioneered the concept of Tensile Structures and, since this time, has led the world in the development of new systems and the introduction of new technology in this field. We offer the most comprehensive range of rod and cable systems in both carbon and stainless steel. Decon is also able to offer custom made systems to suit almost any application. Our technical team is always there to help develop concepts and ideas for your project requirements. We are a privately held, stand alone North American operational entity and currently have offices located in Palm Harbor, (FL), Medford (NJ), Sonoma (CA), Beaufort (SC) and Brampton (ON) Canada.
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	PART 1	GENERAL
	1.1	SECTION INCLUDES
		A.	Tension rod, compression strut and cabling structural support system, including engineering, fabrication, assembly and installation.
	1.2	RELATED SECTIONS
	** NOTE TO SPECIFIER ** Delete any sections below not relevant to this project; add others as required.
		A.	Section 05120 - Structural Steel; Primary and secondary building structural steel (host) framing.
		B.	Section 05150 - Wire Rope Assemblies.
		C.	Section 05500 - Metal Fabrications.
		D.	Section 13010 - Air-Supported Structures.
		E.	Section 13123 - Glazed Structures.
		F.	Section 13135 - Cable Supported Structures.
	1.3	REFERENCES
	** NOTE TO SPECIFIER ** Delete references from the list below that are not actually required by the text of the edited section.
		A.	American National Standards Institute (ANSI) - A58.l Minimum Design Loads in Buildings and Other Structures.
		B.	American Society for Testing and Materials (ASTM) A572 / A572M - Standard Specification for High-Strength Low-Alloy Columbium-Vanadium Structural Steel.
		C.	American Welding Society (AWS) - Structural Welding Code.
		D.	American Institute of Steel Construction (AISC).
		E.	Canadian Welding Bureau (CWB).
		F.	Canadian Standards Association (CSA).
	1.4	SUBMITTALS
		A.	Submit under provisions of Section 01300.
		B.	Product Data: Manufacturer's data sheets on each product to be used, including:
			1.	Storage and handling requirements and recommendations.
			2.	Installation methods.
	** NOTE TO SPECIFIER ** Add shop drawing requirements. Delete if not required.
		C.	Shop Drawings: Indicate details of construction and relationship with adjacent construction. Shop drawings shall be stamped by a structural engineer licensed in the jurisdiction of the project.
	1.5	SYSTEM DESCRIPTION
	** NOTE TO SPECIFIER ** Retain first paragraph below if Contractor is required to assume responsibility for design.
		A.	Delegated Design: Design tension/compression rod and cabling systems, including comprehensive engineering analysis by a qualified professional engineer, using performance requirements and design criteria indicated.
		B.	Design Requirements:
			1.	Tension/compression rod and cabling systems shall perform as an aesthetic element fulfilling the design intent as well as a structural component of the building structural system or building element as indicated and scheduled.
		C.	Service Requirements:
			1.	Tension/compression rod and cabling systems shall comply with safety factors, anticipated loads imposed or induced as scheduled or required and with local building code, requirements of authorities having jurisdiction.
			2.	Load carrying and resisting capacity shall comply with A58.l Minimum Design Loads in Buildings and Other Structures.
		D.	Structural Requirements:
			1.	Assembly shall be analyzed and modeled using finite analysis.
			2.	Structural Performance: Tension/compression rod and cabling systems shall withstand the effects of gravity loads and the following loads and stresses within limits and under conditions scheduled.
	** NOTE TO SPECIFIER ** Retain paragraph below for projects requiring seismic design. Model building codes and ASCE/SEI 7 establish criteria for buildings subject to earthquake motions. Verify requirements of authorities having jurisdiction.
			3.	Seismic Performance: Tension/compression rod and cabling systems shall withstand the effects of earthquake motions determined according to ASCE/SEI 7.
				a.	Component Importance Factor is 1.5.
	** NOTE TO SPECIFIER ** Include article below for design and construction services provided by Decon USA either under contract to a Contractor or directly to the Owner. Modify as required. Delete if not required.
	1.6	DELEGATED DESIGN
		A.	The construction and components of the tension/compression rod and cabling systems of the Project's construction are designated Contractor Design. Contractor is responsible to coordinate and assume or assign to subcontractors complete responsibility for design, calculations, submittals, permits if required, fabrication, delivery and installation of Contractor Design components.
		B.	Contractor is responsible, with no exceptions, for submittal of Contractor Design components documents to regulatory and approval authorities having jurisdiction (AHJ) for review, so review will not adversely affect Project's construction schedule. Contractor Design components are defined as complete systems provided for intended use.
		C.	Architect's review of Contractor Design submittals is for general conformance with design intent. Architect is not responsible for coordination of Contractor Design components with Contract Documents or review of materials submitted as result of Contractor Design components. Review does not lessen nor shift burden of responsibility from Contractor or assigned subcontractor/ supplier to Owner or Architect
		D.	Design Approval. The design agent will submit a set of pre-final drawings and project specifications to the respective AHJ representatives for review to ensure compliance with applicable codes and regulations.
	1.7	QUALITY ASSURANCE
		A.	Professional Engineer Qualifications: A professional engineer who is legally qualified to practice in jurisdiction where Project is located and who is experienced in providing engineering services of the kind indicated. Engineering services are defined as those performed for installations of tension/compression rod and cabling systems that are similar to those indicated for this Project in material, design, and extent.
	** NOTE TO SPECIFIER ** Add qualification and certifications. Delete if not required.
		B.	Manufacturer Qualifications: Minimum 5 years experience in engineering and fabrication of similar systems.
	** NOTE TO SPECIFIER ** Add qualification and certifications. Delete if not required.
		C.	Installer Qualifications: Minimum two years experience installing similar systems.
	** NOTE TO SPECIFIER ** Include a mock-up if the project size and/or quality warrant taking such a precaution. The following is one example of how a mock-up on a large project might be specified. When deciding on the extent of the mock-up, consider all the major different types of work on the project.
		D.	Mock-Up: Provide a mock-up for evaluation of surface preparation techniques and application workmanship.
			1.	Finish areas designated by Architect.
			2.	Do not proceed with remaining work until workmanship, color, and sheen are approved by Architect.
			3.	Refinish mock-up area as required to produce acceptable work.
	1.8	DELIVERY, STORAGE, AND HANDLING
		A.	Store products in manufacturer's unopened packaging until ready for installation.
		B.	Store and dispose of solvent-based materials, and materials used with solvent-based materials, in accordance with requirements of local authorities having jurisdiction.
	1.9	PROJECT CONDITIONS
		A.	Maintain environmental conditions (temperature, humidity, and ventilation) within limits recommended by manufacturer for optimum results. Do not install products under environmental conditions outside manufacturer's absolute limits.
	PART 2	PRODUCTS
	2.1	MANUFACTURERS
		A.	Acceptable Manufacturer: Decon® USA, which is located at: 10 Waterman Ave. P. O. Box 1486 ; Sonoma, CA 95476-3467; Toll Free Tel: 866-DECON-US; Tel: 707-996-5954; Email: request info; Web: www.deconusa.com
	** NOTE TO SPECIFIER ** Delete one of the following two paragraphs; coordinate with requirements of Division 1 section on product options and substitutions.
		B.	Substitutions: Not permitted.
		C.	Requests for substitutions will be considered in accordance with provisions of Section 01600.
	2.2	MATERIALS
	** NOTE TO SPECIFIER ** Macalloy 460 is a fine grain steel with an exceptional blend of mechanical properties; combined with rolled threads this provides a material with superior fatigue performance. Macalloy 460 is a weldable steel with a maximum carbon equivalent of 0.55 percent. Delete if not required.
		A.	Tension Rod System: Macalloy 460 as provided by Decon USA.
			1.	Alloy: A fine grain carbon steel with the following properties; combined with cold rolled ISO metric threads to provide superior fatigue performance. A weldable steel with a maximum carbon equivalent of 0.55 percent.
				a.	Minimum Yield Strength: 66,700 psi.
				b.	Minimum Tensile Strength: 88,400 psi.
				c.	Minimum Elongation: 19 percent.
				d.	Minimum Charpy Impact Value: 20 ft-lb (2.8 kg-m) at 4 degree F (16 degree C).
				e.	Young's Modulus: 29,700 ksi.
			2.	Fittings: Fittings shall be designed and tested to provide a tensile capacity equal or greater than the theoretical strength of the bar.
				a.	Forks shall be designed to be connected to an ASTM A-572 Grade 50 plate of the dimensions indicated or required. Ensure a connection with yield strength equal to the minimum tendon yield strength.
				b.	Spades shall be designed to be connected to forks or between grade 50 plates simulating a fork/spade connection indicated or required.
				c.	Pins connect the fork or spade to the host structure and may be held in place with either safety rings or architectural caps indicated or required.
				d.	Lock covers shall lock the components in place and hide the remainder of the rod thread form and provide an aesthetic and smooth transition from component to rod. Provide at either side of the turnbuckle or coupler and at the back end of a fork or spade indicated or required.
	** NOTE TO SPECIFIER ** Small and unobtrusive way of Joining 2 or more rods together when tendons are longer than the maximum rod length. The turnbuckles can further be used to apply a torque or induce a load into the rod especially when used In combination with the Macalloy TechnoTensioner.
				e.	Couplers and Turnbuckles: As indicated or required.
				f.	Architectural fittings shall be furnished to provide a smooth transition from the bar to the fork by the use of threaded lock covers, which combine the function of a lock nut and a blending thread cover.
			3.	Adjustment: The standard left hand- right hand tendon shall provide adjustment to accommodate site and manufacturing tolerances:
				a.	Adjustment for rods M10, 3/8 inch (9.5 mm) to M56, 2-1/4 inches (57 mm) plus or minus 1/2 inch (13 mm) thread diameter each end.
				b.	Adjustment for rods M64, 2-1/2 inches (63.5 mm) to M100, 4 inches (102 mm) plus or minus 1 inch (25 mm) each end.
				c.	Turnbuckles give additional adjustment of:
					1)	M10 3/8 inch (9.5 mm) - M24 1 inch (25 mm): plus or minus 1 (25 mm).
					2)	M30 1-1/4 inch (32 mm) - M100 4 inch (102 mm): plus or minus 2 inches (51 mm)
			4.	Fabrication Tolerance:
				a.	Cutting tolerance for rods: up to M76, 3 inches (76 mm) plus or minus 1/4 inch (6 mm).
				b.	Cutting tolerance for rods: over M76, 3 inches (76 mm) plus or minus 1 inch (25 mm).
				c.	Maximum lengths
					1)	M10 3/8 inch (9.5 mm) - M16 5/8 inch (16 mm): 19 feet 6 inches (6 meters).
					2)	M20 3/4 inch (19 mm) - 29 feet 6 inches (9.0 meters).
					3)	M24 1 inch (25 mm) - M100 4 inch (102 mm): 39 feet 2 inches (11.95 meters).
	** NOTE TO SPECIFIER ** Macalloy 460 can be provided with any practical coating system in accordance with your specification; Please discuss your exact requirements with the Decon engineers. Delete coating not required.
			5.	Coating: Galvanizing as scheduled.
			6.	Coating: Priming as scheduled.
			7.	Coating: Painting as scheduled.
			8.	Coating: Plating.
			9.	Connection: The connection to the structure shall be made by utilizing a connection plate with the same thickness and edge distance as the manufacturer's spade. Engineered fabricated building connections shall be made using standard grade 50 material.
	** NOTE TO SPECIFIER ** Macalloy Grade S460 provides a unique opportunity to present the same shape and profile for all bar systems. Many more structures are moving to stainless steel tension support systems. Delete if not required.
		B.	Tension Rod System: Macalloy 460S Stainless as provided by Decon USA.
			1.	Alloy: Material shall be selected from high strength austentitic/duplex stainless steel to provide the optimum balance of strength, ductility and appearance.
				a.	Minimum Yield Strength: 66,700 psi.
				b.	Minimum Tensile Strength: 88,400 psi.
				c.	Minimum Elongation: 15 percent.
				d.	Young's Modulus: 27.5 kSl.
			2.	Fittings: Fittings shall be designed and tested to provide a tensile capacity equal or greater than the theoretical strength of the bar.
				a.	Forks shall be designed to be connected to an ASTM A-572 Grade 50 plate of the dimensions indicated or required. Provide yield strength equal to the minimum tendon yield strength.
				b.	Spades shall be designed to be connected to forks or between grade 50 plates simulating a fork/spade connection indicated or required.
				c.	Pins shall connect the fork or spade to the host structure and shall be held in place with architectural caps. No cotter pins/circle clips permitted.
	** NOTE TO SPECIFIER ** Small and unobtrusive way of Joining 2 or more rods together when tendons are longer than the maximum rod length. The turnbuckles can further be used to apply a torque or induce a load into the rod especially when used In combination with the Macalloy TechnoTensioner.
				d.	Couplers and Turnbuckles: As indicated or required.
				e.	Architectural fittings shall be furnished to provide a smooth transition from the bar to the fork by the use of threaded lock covers, which combine the function of a lock nut and a blending thread cover.
			3.	Adjustment: The standard left hand- right hand tendon will provide adjustment to accommodate site tolerances:
				a.	Adjustment for rods M10, 3/8 inch (9.5 mm) to M56, 2-1/4 inches (57 mm) plus or minus 1/2 inch (13 mm) thread diameter each end.
				b.	Adjustment for rods M64, 2-1/2 inches (63.5 mm) to M100, 4 inches (102 mm) plus or minus 1 inch (25 mm) each end.
				c.	Turnbuckles give additional adjustment of:
					1)	M10 3/8 inch (9.5 mm) - M24 1 inch (25 mm): plus or minus 1 inch (25 mm).
					2)	M30 1-1/4 inch (32 mm) - M100 4 inch (102 mm): plus or minus 2 inch (51 mm).
			4.	Fabrication Tolerance:
				a.	Cutting tolerance for rods up to M56, 2-1/4 inches (57 mm) plus or minus 1/4 inch (6 mm).
				b.	Adjustment for rods up to M10, 3/8 inch (9.5 mm) plus or minus 1/2 inch (12 mm) each end.
				c.	Maximum lengths:
					1)	M10 3/8 inch (9.5 mm) - M56 2 1/4 inch (57 mm): 24 feet 7 inches (7.5 meters).
					2)	M64 2 1/2 inch (63.5 mm) - M100 4 inch (102 mm): 19 feet 6 inches (6.0 meters).
	** NOTE TO SPECIFIER ** Should you require any other finish please contact Decon to select from the wide range of optional surface treatments. Additional finishes available upon request.
			5.	Coating: Rods shall be finished with a light satin finish approximately equal to an N3 finish.
			6.	Connection: The connection to the structure shall be made by utilizing a connection plate with the same thickness and edge distance as the manufacturer's spade. Engineered fabricated building connections shall be made using standard grade 50 material or stainless equivalent.
				a.	If connecting stainless steel to carbon steel, measures shall be taken to prevent bimetallic corrosion. Isolation bushings and washers shall be provided to minimize bimetallic corrosion.
	** NOTE TO SPECIFIER ** Once more. Macalloy leads the way with the launch of a new tensile structure system, the Macalloy 520 system. The system is on extension to the already established Macalloy 460 system and is available in carbon steel from M10 (3/8 inch) to M100 (4 inches), The fittings ore designed to take the increased capacity of the system allowing approximately 13 percent higher load to be carried for the some diameter, when compared with the Macalloy 460 system or 45 percent when compared with the more common Grade 50 steel. Delete if not required.
		C.	Tension Rod System: Macalloy 520 as provided by Decon USA.
			1.	Alloy: A fine grain carbon steel with the following properties; combined with cold rolled ISO metric threads to provide superior fatigue performance. A weldable steel with a maximum carbon equivalent of 0.55 percent.
			2.	Rods have the following mechanical properties:
				a.	Minimum Yield Stress 75,400 psi.
				b.	Minimum Breaking Stress 95,700 psi.
				c.	Minimum Elongation 19 percent.
				d.	Minimum Charpy Impact Value: 20 ft-lb (2.8 kg-m) at 4 degree F (16 degree C).
				e.	Young's Modulus 29,700 ksi.
			3.	Fittings: Fittings shall be designed and tested to provide a tensile capacity equal or greater than the theoretical strength of the bar.
				a.	Forks shall be designed to be connected to an ASTM A-572 Grade 50 plate of the dimensions indicated or required. Ensure a connection which has yield strength equal to the minimum tendon yield strength.
				b.	Spades shall be designed to be connected to forks or between grade 50 plates simulating a fork/spade connection.
				c.	Pins connect the fork or spade to the host structure and may be held in place with either safety rings or architectural caps indicated or required.
				d.	Lock covers shall lock the components in place and hide the remainder of the rod thread form and provide an aesthetic and smooth transition from component to rod. Provide at either side of the turnbuckle or coupler and at the back end of a fork or spade indicated or required.
	** NOTE TO SPECIFIER ** Small and unobtrusive way of joining 2 or more rods together when tendons are longer than the maximum rod length. The turnbuckles can further be used to apply a torque or induce a load into the rod especially when used In combination with the Macalloy TechnoTensioner.
				e.	Couplers and Turnbuckles: As indicated or required.
				f.	Architectural fittings shall be furnished to provide a smooth transition from the bar to the fork by the use of threaded lock covers, which combine the function of a lock nut and a blending thread cover.
			4.	Adjustment: The standard left hand- right hand tendon shall provide adjustment to accommodate site and manufacturing tolerances:
				a.	Adjustment for rods M10, 3/8 inch (9.5 mm) to M56, 2-1/4 inches (57 mm) plus or minus 1/2 inch (13 mm) thread diameter each end.
				b.	Adjustment for rods M64, 2-1/2 inches (63.5) to M100, 4 inches plus or minus 1 inch (25 mm) each end.
				c.	Turnbuckles give additional adjustment of:
					1)	M10 3/8 inch (9.5 mm) - M24 1 inch: plus or minus 1 inch (25 mm).
					2)	M30 1 1/4 inch (32 mm) - M100 4 inch: plus or minus 2 inches (51 mm)
			5.	Fabrication Tolerance:
				a.	Cutting tolerance for rods: up to M76, 3 inches (76 mm) plus or minus 1/4 inch (6 mm).
				b.	Cutting tolerance for rods: over M76, 3 inches (76 mm) plus or minus 1 inch (25 mm).
				c.	Maximum lengths
					1)	M10 3/8 inch (9.5 mm) - M16 5/8 inch: 19 feet 6 inches (6 meters).
					2)	M20 3/4 inch (19 mm) - 29 feet 6 inches (9.0 meters).
					3)	M24 1 inch (25 mm) - M100 4 inch (102 mm): 39 feet 2 inches (11.95 meters).
	** NOTE TO SPECIFIER ** Macalloy 460 can be provided with any practical coating system in accordance with your specification; Please discuss your exact requirements with the Decon engineers. Delete coating not required.
			6.	Coating: Galvanizing as scheduled.
			7.	Coating: Priming as scheduled.
			8.	Coating: Painting as scheduled.
			9.	Coating: Plating.
			10.	Connection: The connection to the structure shall be made by utilizing a connection plate with the same thickness and edge distance as the manufacturer's spade. Engineered fabricated building connections shall be made using standard grade 50 material.
	** NOTE TO SPECIFIER ** This system utilizes standard Macalloy 460 and S460 components together with standard circular hollow sections in order to produce a pin ended compression member. Since their introduction, the Macalloy Compression Struts have been used on several high profile projects. Delete if not required.
		D.	Compression Strut System: Compression Struts as provided by Decon USA.
			1.	(CHS) Circular Hollow Section:
	** NOTE TO SPECIFIER ** Delete material not required.
				a.	Hollow Sections: Circular Hollow Sections (CHS) shall be carbon material.
				b.	Hollow Sections: Circular Hollow Sections (CHS) shall be stainless material.
				c.	Size: Diameters from M12 1/2 inch to M100 4 inches in carbon or galvanized steel components.
				d.	Macalloy Compression Struts utilize Macalloy 520 fork and pin sets. These are connected to the CHS (circular hollow section) by a taper cone and threaded stud. This is welded onto each end of a CHS.
				e.	Fabrication Tolerance:
					1)	Cutting tolerance for a CHS is: plus or minus 1/8 inch (3 mm).
				f.	Adjustment: The standard left hand- right hand tendon shall provide adjustment to accommodate site and manufacturing tolerances:
					1)	Adjustment for rods M12, 1/2 inch (13 mm) to M56, 2-1/4 inches plus or minus 1/2 inch (13 mm)thread diameter each end.
					2)	Adjustment for rods M64, 2-1/2 (63.5 mm) inches to M100, 4 inches (102 mm) plus or minus 1 inch (25 mm) each end.
	** NOTE TO SPECIFIER ** After the success of the Macalloy 460 and S460 systems, and to meet the ever increasing needs of its customers, the Macalloy SC460 Stainless Cable system has been introduced. This special design incorporates cable adapters, which allow standard imperial threaded swaged cables to be connected to the standard Macalloy S460 range of forks. By using the standard Macalloy S460 forks on the cable ends, continuity of design remains in projects where Standard Macalloy 460 & S460 rod systems have been used alongside the Macalloy SC460 Stainless Cable Systems. The cable used in the system undergoes both a conventional elastic stretch as well as an initial stretch. The initial stretch can be between 0.10 and 0.75 percent of the cable length, depending on the magnitude and frequency of loading, and should always be considered in the design of the structure. Delete if not required.
		E.	Cable System: Macalloy SC460 Stainless Cable Systems as provided by Decon USA.
	** NOTE TO SPECIFIER ** Macalloy offers 3 cable types. Delete type not required.
			1.	Cable: 1x19 spiral strand, has moderate initial stretch properties. The cable adapter fittings shall be designed to match the minimum break load of the 1x19 cable.
			2.	Cable: Compact Strand has a higher breaking load along with a lower initial stretch than the 1x19 strand cable.
			3.	Cable: 7x19 strand is the most flexible cable and is ideal where flexibility is paramount.
	** NOTE TO SPECIFIER ** Standard Components SC460 Tendons. Delete if not required.
			4.	The fork and pin components of the system shall be made from austenitic/duplex stainless steel. The swaged fittings shall be factory swaged to either end of the cable, and the strength of the connection shall exceed the break load of the cable.
			5.	Connection Plates: Forks shall be connected to connection plates with an equivalent strength to ASTM A-572, grade 50 ferrous steel or grade 316 stainless steel.
				a.	If connecting stainless steel to carbon steel, measures shall be taken to prevent bimetallic corrosion. Isolation bushings and washers shall be provided to minimize bimetallic corrosion.
	PART 3	EXECUTION
	3.1	EXAMINATION
		A.	Do not begin installation until substrates have been properly prepared.
		B.	If host structural preparation is the responsibility of another installer, notify Architect of unsatisfactory preparation before proceeding.
	3.2	PREPARATION
		A.	Clean surfaces thoroughly prior to installation.
		B.	Prepare surfaces using the methods recommended by the manufacturer for achieving the best result for the substrate under the project conditions.
	3.3	INSTALLATION
		A.	Install in accordance with manufacturer's instructions.
	**NOTE TO SPECIFIER** TechnoTensioner is available for rod sizes 1 1/4 inch M30 thru 4 inch M100. Delete if not required.
		B.	Installation using the manufacturer's tensioning device is required. The hydraulic stressing unit shall be placed over the turnbuckle Joint and clamped onto the lock covers either side of the turnbuckle. The live load is induced Into the tendon through the TechnoTensloner and shall be measured with a degree of accuracy of plus or minus 2.5 degrees.
	3.4	PROTECTION
		A.	Protect installed products until completion of project.
		B.	Touch-up, repair or replace damaged products before Substantial Completion.
	END OF SECTION