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	SECTION 01570
	TEMPORARY MASONRY WALL BRACING For best results, display hidden notes to specifier.
	** NOTE TO SPECIFIER ** Dur-O-Wal, Inc.; masonry wall temporary bracing products. This section is based on the products of Dur-O-Wal, which is located at: 7777 Washington Village Dr. Dayton, OH 45459 Toll Free Tel: 800-323-0090 Fax: 630-898-8331 Email: request info Web: www.dur-o-wal.com [ Click Here ] for additional information.
	Dur-O-Wal has been the innovator in designing new products for improved masonry connection, seismic applications and quality products for moisture control in masonry walls. In response to a growing need for specific information on how masonry walls should be braced the Council for Masonry Wall Bracing has prepared a guideline of recommended wall bracing methods. Dur-O-Wall Brace-Rite system provides a fast economical means for meeting the requirements of this Guideline. Temporary masonry bracing is for use during construction and is not intended for permanent support of masonry. Our experience with and knowledge of the engineering of masonry structures' performance insures that Dur-O-Wal truly can 'DO IT ALL'. . SECTION 01570 - TEMPORARY MASONRY WALL BRACING, Copyright 2004, ARCAT, Inc.
	PART 1	GENERAL
	1.1	SECTION INCLUDES
	** NOTE TO SPECIFIER ** Delete items below not required for project.
		A.	Temporary Masonry Wall Bracing during installation of masonry work.
	1.2	RELATED SECTIONS
	** NOTE TO SPECIFIER ** Delete any sections below not relevant to this project; add others as required.
		A.	Section 01500 - Temporary Facilities and Controls.
		B.	Section 04810 - Unit Masonry Assemblies.
		C.	Section 04812 - Glass Masonry Assemblies.
		D.	Section 04840 - Shop Prefabricated Masonry Panels.
		E.	Section 04850 - Stone Assemblies.
	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.	ASCE 7 - Minimum Design Loads for Buildings and Other Structures.
		B.	ANSI 10.9 - Construction and Demolition Operations - Concrete and masonry Work.
		C.	ASTM A 36 - Standard Specification for Carbon Structural Steel.
		D.	CFR 1910 - Occupational Safety and Health Standards.
	1.4	SYSTEM DESCRIPTION
		A.	Temporary bracing: Furnish temporary bracing during installation of masonry work. Maintain in place until building structure provides permanent support.
		B.	Design Requirements:
			1.	Design and size components to withstand dead and live loads caused by positive and negative wind pressure acting normal to plane of wall as calculated in accordance with ASCE 7 - Calculations of Wind Loads and the applicable building code.
			2.	Comply with the provisions of OSHA and American Safety Standards Institute when considering safety factors. As a minimum, comply with the following safety factors based on tilt-up construction industry practices.
				a.	Braces: 1.5 to 1.
				b.	Braces Anchors/Deadmen: 1.5 to 1.
				c.	Wall Ties: 2.0 to 1.
				d.	Augers: 2.0 to 1.
	1.5	SUBMITTALS
		A.	Submit under provisions of Section 01300.
		B.	[ Product Data ]: Manufacturer's data sheets on products to be used, including:
			1.	Preparation instructions and recommendations.
			2.	Storage and handling requirements and recommendations.
			3.	Installation methods.
		C.	Shop Drawings: Indicate dimensions, layout, joints, construction details, methods of anchorage, and interface with adjacent materials.
		D.	Design Data: Submit design calculations.
	1.6	QUALITY ASSURANCE
		A.	Installer: Company specializing in performing Work of this section with minimum three years documented experience.
		B.	Design bracing under direct supervision of Professional Engineer experienced in design of this Work and licensed at the Project location.
	1.7	COORDINATION
		A.	Coordinate Work with erection of masonry and the placement of mounting plates and anchors.
		B.	Coordinate Work with installation of windows, doors, louvers, and adjacent components or materials.
	PART 2	PRODUCTS
	2.1	MANUFACTURERS
		A.	Acceptable Manufacturer: Dur-O-Wal, which is located at: 7777 Washington Village Dr. ; Dayton, OH 45459; Toll Free Tel: 800-323-0090; Fax: 630-898-8331; Email: request info; Web: www.dur-o-wal.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.
	** NOTE TO SPECIFIER ** Dur-O-Wall Brace-Rite System consists of a number of components including a pipe brace assembly, strongbacks, struts and earth augers. Select components required and delete those not required.
	2.2	COMPONENTS
	** NOTE TO SPECIFIER ** Select pipe brace required and delete the components not required.
		A.	Dur-O-Wall Brace-Rite Pipe Braces: Telescoping steel pipe braces with pin holes in both pipes permitting adjustment in increments of 6 inches (152 mm). Pipe brace lower bases are attached to a galvanized steel 1-1/2 inch (28 mm) diameter threaded adjusting rod with four 1/2 inch (12.5 mm) contour threads to the inch. Braces are available in the following types and sizes:
			1.	Brace-Rite BR20, regular pipe brace with a minimum brace length of 13 feet (4 m) and a maximum brace length of 20 feet 6 inches (6.25 m) and the following types:
	** NOTE TO SPECIFIER ** Select type required and delete the types not required.
				a.	Type I with a flat plat and a clip end.
				b.	Type II with two clip ends.
				c.	Type III with a flat plate and a floor bracket end.
				d.	Type IV with a clip and a floor bracket end.
			2.	Brace-Rite BR23, heavy duty regular pipe brace with a minimum brace length of 14 feet 6 inches (4.42 m) and a maximum brace length of 23 feet 6 inches (7.16 m) and the following types:
	** NOTE TO SPECIFIER ** Select type required and delete the types not required.
				a.	Type I with a flat plat and a clip end.
				b.	Type II with two clip ends.
				c.	Type III with a flat plate and a floor bracket end.
				d.	Type IV with a clip and a floor bracket end.
			3.	Brace-Rite BR39, heavy duty long pipe brace with a minimum brace length of 22 feet 6 inches (6.85 m) and a maximum brace length of 39 feet (11.88 m) and the following types:
	** NOTE TO SPECIFIER ** Select type required and delete the types not required.
				a.	Type I with a flat plat and a clip end.
				b.	Type II with two clip ends.
				c.	Type III with a flat plate and a floor bracket end.
				d.	Type IV with a clip and a floor bracket end.
	** NOTE TO SPECIFIER ** Select components required and delete those not required.
		B.	Dur-O-Wall Brace-Rite attachment devices:
			1.	D/A-800MP Mounting Plate: Connects to wall face and bears on the brace side of the wall and connected with two 5/8 inch (15.9 mm) diameter button head pins. Plate is 3/8 inch (10 mm) thick steel plate conforming to ASTM A 36 .
			2.	D/A-800BP Backing Plate: Installed on the unbraced side of the wall and is fabricated with two slots to accommodate wall ties that are inserted through the bed joint of the wall. Plate is 3/8 inch (10 mm) thick steel plate conforming to ASTM A 36 .
			3.	D/A-800SBP Strongback Backing Plate: Installed on the unbraced side of the wall when a strongback is used and is fabricated with one slots to accommodate a wall tie that is inserted through the head joint of the wall. Plate is 3/8 inch (10 mm) thick steel plate conforming to ASTM A 36 .
			4.	D/A-800WT Wall Ties: Wall ties are used to connect the mounting plate to the backing plate. Ties are fabricated of high strength steel and is available in the following sizes:
				a.	D/A-800WT610 for 8 inch (203 mm) and 10 inch (254 mm) block walls.
				b.	D/A-800WT812 for 10 inch (254 mm) and 12 inch (305 mm) block walls.
			5.	D/A-800ST Strongback Ties: Used to tie strongbacks to the wall. Ties are available in two sizes:
				a.	D/A-800ST610 for 6 inch (152 mm) and 10 inch (254 mm) block and strongback.
				b.	D/A-800ST812 for 8 inch (203 mm) and 12 inch (305 mm) block and strongback.
			6.	D/A-800W Wedges: Fabricated of 3/16 inch (5 mm) thick steel plate conforming to ASTM A 36 .
			7.	D/A-800BC Brace Clip: Connects the brace to an aluminum horizontal strut or strongback with 1/2 inch (12.5 mm) diameter Grade 5 bolts. Clip is 3/8 inch (10 mm) thick steel plate conforming to ASTM A 36 .
			8.	D/A-800FB Floor Bracket: Steel casting connects the brace with a concrete slab, foundation or deadman. Use with D/A-800CA Coil Anchor.
			9.	D/A-800CA Coil Anchor: Used to connect floor bracket to substraight or deadman.
			10.	D/A-800FC Foundation Clip: Connects the horizontal strut to the deadman with two 1/2 inch (12.5 mm) anchor bolts. Clip is 3/8 inch (10 mm) thick steel plate conforming to ASTM A 36 .
			11.	D/A-800S Strongbacks and Struts: Tubular extruded 6063-T5 aluminum. Tubes are prepunched to allow for attachment of brace and foundation clips and wall ties.
			12.	D/A-800SBC Strongback Clip: Clip is 3/8 inch (10 mm) thick steel plate conforming to ASTM A 36 .
			13.	D/A-800SP Splice Plate: Plate is 3/8 inch (10 mm) thick steel plate conforming to ASTM A 36 .
			14.	D/A-800SC Strut Clip: Plate is 3/8 inch (10 mm) thick steel plate conforming to ASTM A 36 .
	2.3	ACCESSORIES
	** NOTE TO SPECIFIER ** Select type and wire material required and delete the type not required.
		A.	Dur-O-Wall Brace-Rite Anchorage Devices:
			1.	Auger D/A-800A: 4 feet long, designed to provide pull-out resistance for pipe brace assembly.
			2.	Spade D/A-800SP: For use with auger to provide some lateral restraint. Two spaces are required for each auger.
	** NOTE TO SPECIFIER ** Select model required and delete the model not required.
		B.	Dur-O-Wall Brace-Rite Windspeed Indicators:
			1.	Model 200-WS-21: Microprocessor based windspeed indicator and alarm device.
			2.	Model 200-WS-21: Microprocessor based windspeed indicator and alarm device.
	PART 3	EXECUTION
	3.1	EXAMINATION
		A.	Verify that field conditions are ready to receive the work of this Section.
		B.	Do not begin installation until related components have been properly prepared.
		C.	If preparation of related components is the responsibility of another installer, notify Contractor 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 ** Coordinate the following reinforcing descriptions with the structural requirements and the Drawings. Edit if required and delete those not required.
		B.	Furnish temporary bracing during installation of masonry work. Maintain in place until building structure provides permanent support.
	3.4	PROTECTION
		A.	Protect installed products until completion of project.
		B.	Repair or replace damaged products immediately.
	3.5	REMOVAL AND CLEANING
		A.	Properly remove temporary bracing when walls are permanently supported.
		B.	Restore any surfaces damaged by temporary bracing.
	END OF SECTION