يشير الامتثال لقوانين الزلازل إلى استخدام الأنظمة والتصميمات المعتمدة، التي تلبي متطلبات التصميم المقاوم للزلزال للمشروع، لضمان سلامة السكان والحفاظ على المبنى أثناء وبعد الزلزال. تمثل المواد غير الهيكلية نسبة عالية من الاستثمار الرأسمالي للمشروع. ومن المحتمل أن يتسبب فشل هذه المواد في مقاومة الزلزال في حدوث ضرر، ومنع الخروج، وإعاقة جهود الإنقاذ، ويمكن أن يعطل وظيفة المبنى. إن الأهداف الأساسية للتصميم الزلزالي للمواد غير الهيكلية هي توفير سبل السلامة وتقليل الخسائر في الممتلكات ومنع الخسائر الوظيفية للمبنى.
فيما يلي جميع متطلبات قانون البناء العالمي IBCمن البند DوE وF2 للألواح الصوتية الداخلية والبلاط الصوتي المعلق المباشر. المواصفات أدناه هي للتطبيقات القياسية، وعرض حل بديل يقدم خيارات إضافية.
| Basic Connections, Perimeter, and Lateral Splay Bracing | Requirements |
|---|---|
| Minimum intersection strength limits @ MT / CT | 180 lbs |
| Vertical hanger wire 12-gauge @ 4' o.c. | Required |
| Connection device from vertical wire to the structure above must sustain min 100 lbs | Required |
| Main tee classifications | Heavy-duty |
| 1 in 6 max plumb of vertical hanger wires | Required |
| Perimeter vertical hanger wires not more than 8" from wall | Required |
| Grid end/wall clearance | Min 3/4" |
| Perimeter closure (molding) width | Min 2 " |
| Grid connection to perimeter attached on two adjacent walls | Required |
| Perimeter tee ends tied together | Required |
| Horizontal restraint (splay wires or rigid bracing) within 2" of intersection and splayed 90° apart at 45° angles | Required |
| Compression posts (struts) 12' o.c. in both directions, starting 6' from walls | Required |
| Splay bracing connection strength 200 lbs or the design load, whichever is greater | Required |
| Partition attachment | Bracing independent of ceiling splay bracing |
| Seismic separation joint4 | Required for areas > 2,500 sq. ft. (or full height partition) |
| Rigid bracing for ceiling plane elevation changes | Required |
| Light Fixture Attachment | Requirements |
|---|---|
| Light fixture (all types) mechanically attached to grid NEC 410-16 (two per fixture unless independently supported) | Required |
| Surface-mounted fixtures attached to grid | Not required |
| Pendant-hung fixtures directly supported from structure with 9-gauge wire (or approved alternative) | Required |
| Rigid lay-in or can light fixtures | - |
| ? 10 lbs – one wire to structure (may be slack) | Required |
| 11 to 56 lbs – two wires from housing to structure (may be slack) | Required |
| ? 57 lbs – supported directly to structure by approved | Required |
| Light Fixture Supplementary Hanger Wires | Requirements |
|---|---|
| Intermediate Duty Main Tees with cross tee rating below 16 lbs./LF | Required |
| Min. 12-gauge hanger wires must be attached to the grid members within 3 inches of each corner of each light fixture. | - |
| Heavy Duty Main Tees with cross tee rating below 16 lbs./LF | Required |
| Min. 12-gauge hanger wires must be attached to the supporting cross tee within 3 inches of the corner of each light fixture. | - |
| Supplementary hanger wires for Heavy Duty Main Tees with cross tee rating equal to 16 lbs./LF | Not Required |
| Service Application | Requirements |
|---|---|
| Air terminals | - |
| ? 20 lbs – positively attached to grid | Required |
| 21 to 56 lbs – positively attached to grid and two wires to structure (may be slack) | Required |
| ? 57 lbs – directly supported to structure | Required |
| Sprinkler heads and other penetration clearance | Min 2" dia. opening or a swing joint |
| Cable trays and electrical conduit independently supported and braced | Required |
