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TWIN LOCK T GRID SUSPENSION LAY-IN SYSTEM
   
 



   

  

 

 

SPECIFICA TECNICA DI CAPITOLATO:
Controsoffitto ispezionabile a pannelli dimensione mm.600x600 (tipologia, decoro e caratteristiche a scelta della Direzione Lavori) in appoggio a filo o ribassato su struttura metallica portante reticolare mm.600x600 Tipo METALSCREEN TWIN LOCK mm.24xh38 – mm.15xh38 incombustibile Euroclass A1 corpo unico antitorsione con scatto anti-sganciamento sismico, non ammesse linguette riportate e rivetti, rivestita con lamina alluminio preverniciato lavabile imputrescibile anti-ingiallimento resistenza umidità e corrosione 100% senza piombo-cromo colore Bianco Sanitas RAL 9003 a vista opportunamente sospesa con pendino rigido e molla metallica doppia ultraflessibile Tipo METALSCREEN 23/D ULTRAFLEX di regolazione millimetrica con trattamento resistente alla corrosione.

 

 PERIMETRICAL FRAME WALL ANGLE L SECTION mm.24x24 WITH CONNECTOR JOINT


Perimetrical wall angles frames Type RA L section mm.24x24x3000 with connector joint
prepainted Aluminium and Steel

- FAST AND EASY INSTALLATION
- PERFECT ALLIGNMENT
- TOP AESTHETICS RESULTS



 

TWIN LOCK Seismic T grid systems 
Details of products and packing

 

SELECTED STEEL MATERIAL - FIRST CHOICE - TOP QUALITY

Hot-dipped galvanized dry steel for BODY and pre-painted ALUMINIUM CORROSIONPROOF for CAP. Both of these material can meet with either ASTM or CNS standard and CE EN 13964:2004 - CE EN 14195:2005. Good quality of material can make sure the ceiling grid in qualified structure and loading ability when forming the body shape during the production process Be carefully, make attention to all manufacturers that use the pre-painted galvanized steel for CAP that became yellow, change colour in short time and corrosion and dust damage seriously the stability of the grid system WARNING.Require the T bar grid system with the CAP made of pre-painted ALUMINIUM CORROSIONPROOF suitable also for external use and humidity wet place, swimming pools, sauna, steam bath, fitness centers and kitchens.

 

Metal T grid systems for modular false ceilings

   False ceilings panels lay-in T grid system
mm.24xH38 - mm.15xH38 seismic unhooking
without click on joggled assembly
 

 

 



 

                       

WARNING - DANGEROUS

 

Pictures of false ceilings panels installed on T grid systems with click on earthquakes and lowest instability beware very dangerous.

 

       
Twin lock Seismec

TWIN LOCK Seismic Grid System T Bar Lay-in for Suspended Ceiling

Experience from around the world shows that failure of suspended ceilings caused by an earthquake can have a significant effect on life safety and building damage. For those areas subject to seismic disturbance should added requirement for suspended ceilings. We provide information available on seismic design of ceiling and requirement for designers, contractors and installers.

Why suspended ceilings fail during a seismic event
There are many reasons why suspended ceilings have failed and they included:

● A differential in movement between walls on opposite sides of the room during an earthquake which tears the ceiling elements apart at their connection or caused the ceiling to lose support at the walls.
● A differential in movement between columns within a room and the ceiling.
● A differential in movement between services that penetrate the ceiling and the ceiling.
● Movement of services in the ceiling plenum which damage ceiling hangers such that support is lost.
● Large horizontal loads induced in the ceiling during an earthquake causing buckling of ceiling members in compression and failure of connections in tension.
● Local failure leading progressive collapse.

TWIN LOCK T Grid System Seismic design principles
To overcome these failure, the seismic design should include the following principles.

● Positively fix the ceiling to two adjacent walls only and provide sliding connections to the other two walls with enough of a gap to accommodate the expected different movement during an earthquake.
● Alternatively keep the ceiling independent of all perimeter walls by bracing it back to the structure above and providing sliding connections to all walls with enough of a gap to accommodate the expected different movement during an earthquake.
● Limit the sizes of ceilings or spacing between braces such that the horizontal forces induced in ceiling members during an earthquake does not cause them to buckle or break their connection.

Where services penetrate ceilings they shall be either:

● Positively fixed to the ceiling grid and their load accounted for in the ceiling design both vertically (dead load) and horizontally (seismic load) or
● Supported independently of the ceiling, both vertically and horizontally, and provided with a perimeter clearance to the ceiling to accommodate the expected differential movement during an earthquake.
● Where partitions rely on ceilings for horizontal bracing the load they induce in a ceiling is considerate in the seismic design.
● Where partitions provide horizontal (seismic) support for ceilings they are appropriately designed and installed to resist such loads and allow the required fixings between the wall and ceiling.

TWIN LOCK T Grid System Seismic Building Code
The Building Code presents minimum design / performance requirements and in some instances prescriptive guidance. The code also sets forth limitations and use. It is important to know that while the building code establishes the requirements, the code official has the power to enforce its provisions. The code official also has the latitude to allow materials and methods of construction that are not addressed in the code.

Each country may have their own building code. Somehow, when speak of seismic building code of suspended ceiling most of countries choose to consider and follow ASTM E580.

Additional Resources on Seismic Code and Requirement, you may visit at the following related websites.

American Society for Testing and Materials (ASTM) : www.astm.org
International Code Council : www.icc-es.org
American Society of Civil Engineers (ASCE) : www.asce.org

TWIN LOCK T Grid System Purpose of Seismic Installation Requirements for Suspended Ceiling
● Provide a suspension system strong enough to resist lateral forces imposed upon it without failing..
● Prevent border panels from falling from the ceiling plane
● Limit structure damage to suspension system during an earthquake

TWIN LOCK T Grid System Seismic Design Categories
The seismic design category A-F must be specified by a professional engineer or registered architect on the project drawings. The project requirements which include the seismic design category can be found in the Section 1 of the specification and the first page of the structure drawings. And a seismic design category must be established for each construction project bases on:

● Anticipated ground motion
● Soil type in a specified geographic area
● Occupancy category

Seismic Design Category What does it mean
A Very small seismic vulnerability
B Low to moderate seismic vulnerability
C Moderate seismic vulnerability
D High seismic vulnerability
E & F Very high seismic vulnerability and near a major fault

Categories A & B are installed to meet requirements established in ASTM
C636. There are no additional seismic requirements.

Category C, D, E & F must follow ASTM E580

TWIN LOCK Seismic T Grid Systems feature
●Heavy duty load-bearing capability
●Hop dipped galvanized steel featured corrosion resistant
●Cross tees are click in tab design provide tight connection and easy removal
●Cross tees feature joggled cut end which is ideal for perfect strong….
●Stitched line in main tee provide additioal torsional strength
●Suitable for seismic application
●Available in Imperial size and metric size
 

Day-Lighting color White RAL 9003-20 Gloss matt for suspended false ceiling

Color White RAL 9003-20 Gloss matt, reproduce day light visual impact, visual comfort for offices light reflectance more of 87%.
Color White RAL 9003 also called White Sanitas dust-proof clean color enlarge the rooms and perfect to individuate an immediatelly remove dust or other kinds of powder on the ceilings surface.

 


 

 

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Contacts

 

FALSE CEILINGS INDUSTRIES
BUILDING PROFILES AND SUSPENSION SYSTEMS FACTORY

VIA ALDO MORO, 38
41030 BOMPORTO MODENA - ITALY EU

Ph.  +39 059 8170611
Fax +39 059 8170633
E-mail: metalscreen@metalscreen.it


Quality Management System Operated
UNI EN ISO 9001

European Test Approval
EN 13964:2007
EN 14195:2005

METALSCREEN g.e.e.e.
False ceilings industries building profiles and suspension systems factory
41030 BOMPORTO MODENA ITALY EU - Via Aldo Moro, 38

Tel. +39 059 8170611 - Fax +39 059 8170633
Web: www.metalscreen.it -  E-mail: metalscreen@metalscreen.it - Metalscreen

 

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