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    VA 13 05 41-2011 SEISMIC RESTRAINT REQUIREMENTS FOR NON-STRUCTURAL COMPONENTS.pdf

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    VA 13 05 41-2011 SEISMIC RESTRAINT REQUIREMENTS FOR NON-STRUCTURAL COMPONENTS.pdf

    1、08-11 13 05 41 - 1 SECTION 13 05 41 SEISMIC RESTRAINT REQUIREMENTS FOR NON-STRUCTURAL COMPONENTS SPEC WRITER NOTE: Delete between /-/ if not applicable to the project. Also, delete any other item or paragraph not applicable in the section and renumber the paragraphs. PART 1 GENERAL 1.1 DESCRIPTION:

    2、A. Provide seismic restraint in accordance with the requirements of this section in order to maintain the integrity of nonstructural components of the building so that they remain safe and functional in case of seismic event. B. Definitions: Non-structural building components are components or syste

    3、ms that are not part of the buildings structural system whether inside or outside, above or below grade. Non-structural components of buildings include: 1. Architectural Elements: Facades that are not part of the structural system and its shear resistant elements; cornices and other architectural pr

    4、ojections and parapets that do not function structurally; glazing; nonbearing partitions; suspended ceilings; stairs isolated from the basic structure; cabinets; bookshelves; medical equipment; and storage racks. 2. Electrical Elements: Power and lighting systems; substations; switchgear and switchb

    5、oards; auxiliary engine-generator sets; transfer switches; motor control centers; motor generators; selector and controller panels; fire protection and alarm systems; special life support systems; and telephone and communication systems. 3. Mechanical Elements: Heating, ventilating, and air-conditio

    6、ning systems; medical gas systems; plumbing systems; sprinkler systems; pneumatic systems; boiler equipment and components. 4. Transportation Elements: Mechanical, electrical and structural elements for transport systems, i.e., elevators and dumbwaiters, including hoisting equipment and counterweigh

    7、ts. 1.2 RELATED WORK: SPEC WRITER NOTE: Include here all applicable specification sections. A. Section No._ B. Section No._ C. Section No._ Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-08-11 13 05 41 - 2 1.3 QUALITY CONTROL: A. Shop-Drawing Prepar

    8、ation: 1. Have seismic-force-restraint shop drawings and calculations prepared by a professional structural engineer experienced in the area of seismic force restraints. The professional structural engineer shall be registered in the state where the project is located. 2. Submit design tables and in

    9、formation used for the design-force levels, stamped and signed by a professional structural engineer registered in the State where project is located. B. Coordination: 1. Do not install seismic restraints until seismic restraint submittals are approved by the Resident Engineer. 2. Coordinate and ins

    10、tall trapezes or other multi-pipe hanger systems prior to pipe installation. C. Seismic Certification: In structures assigned to IBC Seismic Design Category C, D, E, or F, permanent equipments and components are to have Special Seismic Certification in accordance with requirements of section 13.2.2

    11、of ASCE 7 except for equipment that are considered rugged as listed in section 2.2 OSHPD code application notice CAN No. 2-1708A.5, and shall comply with section 13.2.6 of ASCE 7. 1.4 SUBMITTALS: A. Submit a coordinated set of equipment anchorage drawings prior to installation including: 1. Descript

    12、ion, layout, and location of items to be anchored or braced with anchorage or brace points noted and dimensioned. 2. Details of anchorage or bracing at large scale with all members, parts brackets shown, together with all connections, bolts, welds etc. clearly identified and specified. 3. Numerical

    13、value of design seismic brace loads. 4. For expansion bolts, include design load and capacity if different from those specified. B. Submit prior to installation, a coordinated set of bracing drawings for seismic protection of piping, with data identifying the various support-to-structure connections

    14、 and seismic bracing structural connections, include: 1. Single-line piping diagrams on a floor-by-floor basis. Show all suspended piping for a given floor on the same plain. 2. Type of pipe (Copper, steel, cast iron, insulated, non-insulated, etc.). Provided by IHSNot for ResaleNo reproduction or n

    15、etworking permitted without license from IHS-,-,-08-11 13 05 41 - 3 3. Pipe contents. 4. Structural framing. 5. Location of all gravity load pipe supports and spacing requirements. 6. Numerical value of gravity load reactions. 7. Location of all seismic bracing. 8. Numerical value of applied seismic

    16、 brace loads. 9. Type of connection (Vertical support, vertical support with seismic brace etc.). 10. Seismic brace reaction type (tension or compression): Details illustrating all support and bracing components, methods of connections, and specific anchors to be used. C. Submit prior to installatio

    17、n, bracing drawings for seismic protection of suspended ductwork and suspended electrical and communication cables, include: 1. Details illustrating all support and bracing components, methods of connection, and specific anchors to be used. 2. Numerical value of applied gravity and seismic loads and

    18、 seismic loads acting on support and bracing components. 3. Maximum spacing of hangers and bracing. 4. Seal of registered structural engineer responsible for design. D. Submit design calculations prepared and sealed by the registered structural engineer specified above in paragraph 1.3A. E. Submit f

    19、or concrete anchors, the appropriate ICBC evaluation reports, OSHPD pre-approvals, or lab test reports verifying compliance with OSHPD Interpretation of Regulations 28-6. 1.5 APPLICABLE PUBLICATIONS: A. The Publications listed below (including amendments, addenda revisions, supplements and errata) f

    20、orm a part of this specification to the extent referenced. The publications are referenced in text by basic designation only. SPEC WRITER NOTE: Edit applicable publications to indicate the most recent edition. B. American Concrete Institute (ACI): 355.2-07 . Qualification for Post-Installed Mechanic

    21、al Anchors in Concrete and Commentary C. American Institute of Steel Construction (AISC): Load and Resistance Factor Design, Volume 1, Second Edition D. American Society for Testing and Materials (ASTM): A36/A36M-08 Standard Specification for Carbon Structural Steel Provided by IHSNot for ResaleNo r

    22、eproduction or networking permitted without license from IHS-,-,-08-11 13 05 41 - 4 A53/A53M-10 Standard Specification for Pipe, Steel, Black and Hot-Dipped, Zinc-Coated, Welded and Seamless A307-10 Standard Specification for Carbon Steel Bolts and Studs; 60,000 PSI Tensile Strength. A325-10 Standar

    23、d Specification for Structural Bolts, Steel, Heat Treated, 120/105 ksi Minimum Tensile Strength A325M-09 . Standard Specification for High-Strength Bolts for Structural Steel Joints Metric A490-10 Standard Specification for Heat-Treated Steel Structural Bolts, 150 ksi Minimum Tensile Strength A490M-

    24、10 . Standard Specification for High-Strength Steel Bolts, Classes 10.9 and 10.9.3, for Structural Steel Joints Metric A500/A500M-10 Standard Specification for Cold-Formed Welded and Seamless Carbon Steel Structural Tubing in Rounds and Shapes A501-07 Specification for Hot-Formed Welded and Seamless

    25、 Carbon Steel Structural Tubing A615/A615M-09 Standard Specification for Deformed and Plain Billet-Steel Bars for Concrete Reinforcement A992/A992M-06 Standard Specification for Steel for Structural Shapes for Use in Building Framing A996/A996M-09 Standard Specification for Rail-Steel and Axel-Steel

    26、 Deformed Bars for Concrete Reinforcement E488-96(R2003) . Standard Test Method for Strength of Anchors in Concrete and Masonry Element E. American Society of Civil Engineers (ASCE 7) Latest Edition. F. International Building Code (IBC) Latest Edition G. VA Seismic Design Requirements, H-18-8, Febru

    27、ary 2011 H. National Uniform Seismic Installation Guidelines (NUSIG) I. Sheet Metal and Air Conditioning Contractors National Association (SMACNA): Seismic Restraint Manual - Guidelines for Mechanical Systems, 1998 Edition and Addendum 1.6 REGULATORY REQUIREMENT: A. IBC 2003. DESIGNER AND SPEC WRITE

    28、R NOTES: 1. The design professionals responsibilities are to identify the components to be restrained, to Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-08-11 13 05 41 - 5 identify the lateral force coefficient, to provide details for restraints on

    29、the construction drawings, and to review and approve seismic restraint shop drawing details prepared by the Contractor/Vendor. 2. The designer (structural engineer) shall specify on the drawings: a) the short-period acceleration (SDS); b) the importance factor (Ip) for non-structural elements; and c

    30、) the maximum interstory drifts permitted in H-18-8. /B. Exceptions: The seismic restraint of the following items may be omitted: 1. Equipment weighing less than 400 pounds, which is supported directly on the floor or roof. 2. Equipment weighing less than 20 pounds, which is suspended from the roof

    31、or floor or hung from a wall. 3. Gas and medical piping less than 2 inches inside diameter. 4. Piping in boiler plants and equipment rooms less than 1 inches inside diameter. 5. All other piping less than 2 inches inside diameter, except for automatic fire suppression systems. 6. All piping suspende

    32、d by individual hangers, 12 inches or less in length from the top of pipe to the bottom of the support for the hanger. 7. All electrical conduits, less than 2 inches inside diameter. 8. All rectangular air handling ducts less than six square feet in cross sectional area. 9. All round air handling du

    33、cts less than 28 inches in diameter. 10. All ducts suspended by hangers 12 inches or less in length from the top of the duct to the bottom of support for the hanger. PART 2 PRODUCTS 2.1 STEEL: A. Structural Steel: ASTM A36 / A36M / A992 /. B. Structural Tubing: ASTM A500, Grade B. C. Structural Tubi

    34、ng: ASTM A501. D. Steel Pipe: ASTM A53/A53M, Grade B. E. Bolts BOILER PLANT STACKS AND BREACHING; ELECTRICAL BUSWAYS, CONDUITS, AND CABLE TRAYS; AND TELECOMMUNICATION WIRES AND CABLE TRAYS DESIGNER AND SPEC WRITER NOTES: Seismic bracing is required for projects in seismic areas of Moderate High, Hig

    35、h, and Very High seismicities (see Table 4, H-18-8). A. Support and brace mechanical ductwork and piping; electrical busways, conduits and cable trays; and telecommunication wires and cable trays including boiler plant stacks and breeching to resist directional forces (lateral, longitudinal and vert

    36、ical). B. Brace duct and breeching branches with a minimum of 1 brace per branch. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-08-11 13 05 41 - 7 D. Provide supports and anchoring so that, upon application of seismic forces, piping remains fully c

    37、onnected as operable systems which will not displace sufficiently to damage adjacent or connecting equipment, or building members. E. Seismic Restraint of Piping: 1. Design criteria: a. Piping resiliently supported: Restrain to support / 120 / -percent of the weight of the systems and components and

    38、 contents. b. Piping not resiliently supported: Restrain to support / 60 / -percent of the weight of the system components and contents. /2. Provide seismic restraints according to one of the following options: F. Piping Connections: Provide flexible connections where pipes connect to equipment. Mak

    39、e the connections capable of accommodating relative differential movements between the pipe and equipment under conditions of earthquake shaking. 3.4 PARTITIONS SPEC WRITER NOTE: 1. Seismic bracing for partitions is required in buildings in areas of Moderate High, High, and Very High seismicities (s

    40、ee Table 4, H-18-8) 2. Masonry walls used as interior partitions or as exterior surfaces of buildings shall be properly anchored to the structure, and shall be designed to carry lateral loads imposed due to earthquake along with their own weight and other lateral forces. A. In buildings with flexibl

    41、e structural frames, anchor partitions to only structural element, such as a floor slab, and separate such partition by a physical gap from all other structural elements. B. Properly anchor masonry walls to the structure for restraint, so as to carry lateral loads imposed due to earthquake along wit

    42、h their own weight and other lateral forces. 3.5 CEILINGS AND LIGHTING FIXTURES SPEC WRITER NOTE: Seismic bracing for ceilings and lighting fixtures is required in buildings located in areas of Moderate High, High, and Very High seismicities. A. At regular intervals, laterally brace suspended ceilin

    43、gs against lateral and vertical movements, and provide with a physical separation at the walls. B. Independently support and laterally brace all lighting fixtures. Refer to applicable portion of lighting specification, Section 26 51 00, INTERIOR LIGHTING. Provided by IHSNot for ResaleNo reproduction

    44、 or networking permitted without license from IHS-,-,-08-11 13 05 41 - 8 3.6 FACADES AND GLAZING DESIGNER NOTES: 1. Heavy rigid facades should be used only on rigid structural systems; they should never be attached to relatively flexible building frames. 2. Review building design to ensure contracto

    45、rs ability to comply with the following paragraphs. 3. Design brick veneer anchors and back-up wall for applicable seismic forces at the project location. 4. Design attachments to structure for all faade materials to accommodate applicable seismic forces at the project location. A. Do not install co

    46、ncrete masonry unit filler walls in a manner that can restrain the lateral deflection of the building frame. Provide a gap with adequately sized resilient filler to separate the structural frame from the non-structural filler wall. B. Tie brick veneers to a separate wall that is independent of the s

    47、teel frame as shown on construction drawings to ensure strength against applicable seismic forces at the project location. C. Install attachments to structure for all faade materials as shown on construction drawings to ensure strength against applicable seismic forces at the project location. 3.7 S

    48、TORAGE RACKS, CABINETS, AND BOOKCASES A. Install storage racks to withstand earthquake forces and anchored to the floor or laterally braced from the top to the structural elements. B. Anchor medical supply cabinets to the floor or walls and equip them with properly engaged, lockable latches. C. Anch

    49、or filing cabinets that are more than 2 drawers high to the floor or walls, and equip all drawers with properly engaged, lockable latches. D. Anchor bookcases that are more than 30 inches high to the floor or walls, and equip any doors with properly engaged, lockable latches. - - - E N D - - - Provided by IHSNot for ResaleNo reproduction or networking permitted without


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