VA 13 05 41 Seismic Restraint Requirements for Non-Structural ...

VA 13 05 41 Seismic Restraint Requirements for Non-Structural ... VA 13 05 41 Seismic Restraint Requirements for Non-Structural ...

13.07.2015 Views

12-01-13E. 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 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 toequipment. Make the connections capable of accommodating relativedifferential movements between the pipe and equipment under conditionsof earthquake shaking.3.4 PARTITIONSSPEC WRITER NOTE:1. Seismic bracing for partitions isrequired in buildings in areas ofModerate High, High, and Very Highseismicities (see Table 4, H-18-8)2. Masonry walls used as interiorpartitions or as exterior surfaces ofbuildings shall be properly anchored tothe structure, and shall be designed tocarry lateral loads imposed due toearthquake along with their own weightand other lateral forces.A. In buildings with flexible structural frames, anchor partitions to onlystructural element, such as a floor slab, and separate such partition bya physical gap from all other structural elements.B. Properly anchor masonry walls to the structure for restraint, so as tocarry lateral loads imposed due to earthquake along with their ownweight and other lateral forces.3.5 CEILINGS AND LIGHTING FIXTURESSPEC WRITER NOTE: Seismic bracing forceilings and lighting fixtures is requiredin buildings located in areas of ModerateHigh, High, and Very High seismicities.A. At regular intervals, laterally brace suspended ceilings against lateraland vertical movements, and provide with a physical separation at thewalls.B. Independently support and laterally brace all lighting fixtures. Referto applicable portion of lighting specification, Section 26 51 00,INTERIOR LIGHTING.3.6 FACADES AND GLAZINGDESIGNER NOTES:1. Heavy rigid facades should be used onlyon rigid structural systems; they13 05 41 - 7

12-01-13should never be attached to relativelyflexible building frames.2. Review building design to ensurecontractor's ability to comply with thefollowing paragraphs.3. Design brick veneer anchors and back-upwall for applicable seismic forces atthe project location.4. Design attachments to structure for allfaçade materials to accommodateapplicable seismic forces at theproject location.A. Do not install concrete masonry unit filler walls in a manner that canrestrain the lateral deflection of the building frame. Provide a gapwith adequately sized resilient filler to separate the structural framefrom the non-structural filler wall.B. Tie brick veneers to a separate wall that is independent of the steelframe as shown on construction drawings to ensure strength againstapplicable seismic forces at the project location.C. Install attachments to structure for all façade materials as shown onconstruction drawings to ensure strength against applicable seismicforces at the project location.3.7 STORAGE RACKS, CABINETS, AND BOOKCASESA. Install storage racks to withstand earthquake forces and anchored to thefloor or laterally braced from the top to the structural elements.B. Anchor medical supply cabinets to the floor or walls and equip them withproperly engaged, lockable latches.C. Anchor filing cabinets that are more than 2 drawers high to the floor orwalls, and equip all drawers with properly engaged, lockable latches.D. Anchor bookcases that are more than 30 inches high to the floor orwalls, and equip any doors with properly engaged, lockable latches.- - - E N D - - -13 05 41 - 8

12-01-<strong>13</strong>E. <strong>Seismic</strong> <strong>Restraint</strong> of Piping:1. Design criteria:a. Piping resiliently supported: Restrain to support // 120 //-percent of the weight of the systems and components and 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 toequipment. Make the connections capable of accommodating relativedifferential movements between the pipe and equipment under conditionsof earthquake shaking.3.4 PARTITIONSSPEC WRITER NOTE:1. <strong>Seismic</strong> bracing <strong>for</strong> partitions isrequired in buildings in areas ofModerate High, High, and Very Highseismicities (see Table 4, H-18-8)2. Masonry walls used as interiorpartitions or as exterior surfaces ofbuildings shall be properly anchored tothe structure, and shall be designed tocarry lateral loads imposed due toearthquake along with their own weightand other lateral <strong>for</strong>ces.A. In buildings with flexible structural frames, anchor partitions to onlystructural element, such as a floor slab, and separate such partition bya physical gap from all other structural elements.B. Properly anchor masonry walls to the structure <strong>for</strong> restraint, so as tocarry lateral loads imposed due to earthquake along with their ownweight and other lateral <strong>for</strong>ces.3.5 CEILINGS AND LIGHTING FIXTURESSPEC WRITER NOTE: <strong>Seismic</strong> bracing <strong>for</strong>ceilings and lighting fixtures is requiredin buildings located in areas of ModerateHigh, High, and Very High seismicities.A. At regular intervals, laterally brace suspended ceilings against lateraland vertical movements, and provide with a physical separation at thewalls.B. Independently support and laterally brace all lighting fixtures. Referto applicable portion of lighting specification, Section 26 51 00,INTERIOR LIGHTING.3.6 FACADES AND GLAZINGDESIGNER NOTES:1. Heavy rigid facades should be used onlyon rigid structural systems; they<strong>13</strong> <strong>05</strong> <strong>41</strong> - 7

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