RVK & TSS Staircase Connections

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:: General Information Background: • Quick, clean, hidden connection • Quality construction • Uniform performance • Easy to use • No bolting or welding • Neoprene pad (eg. Masticord) under the tube reduces impact sound transfer Advantages: • Safe and easy production in the precast factory • Simplicity in stair-wall production, independent of solution; (precast panels, in situ concrete or masonry) • Safe, quick and easy installation of stairs and landings in the shaft • No corbels or visual supports • Reduces transfer of impact sound from the stairway to the rest of the building Experience: 1987 - 88: RVK 100 developed and introduced in a new stairway system. 1994 - 95: RVK's for the first time used outside Norway (US and UK). 2002: TSS developed and patented by SB Produksjon. Every year an increasing number of buildings in many countries are experiencing the advantage of RVK and TSS. By January 2006 about 60,000 units are in use in 11 different countries. 3
:: Production Procedures using RVK Units General The RVK 100 unit was originally developed as a connection detail between precast landings and walls in stairways. It provides a hidden connection, the erection is quick, and no site work is necessary with bolts, welding or mortar. The units consist of two hollow rectangular or square tubes, the smallest of which slides within the other and is accessable from the surface of the concrete. Experience has shown that the RVK connection is suitable for a number of applications in the precasting industry, like a direct connection for stairs, or support for balconies. Since there normally is not a connection that can transfer tensile forces between the RVK unit and the wall, the supported concrete element must be locked in position connection details at least at three sides. Otherwise a steel plate can be embedded in the bottom of the recess in the wall, and a welded connection can be established. This is not recommended for sound insulation purposes, though. Non-certified for lifting Casting Procedure Normally the RVK is placed in the precast element with the opening facing upwards, as shown above. This eliminates the need for patching work on the underside after erection. The type of elements suited for the use of RVK units are normally cast on flat tables, either normal side up or upside down, depending upon the requirements to the surfaces. Either way, the method of fixing the unit in the form is similar. 4
Page 1 and 2: RVK & TSS Staircase Connections
Page 3: :: Contents 3. 4. 5. 6. 7. 8. 9. 10
Page 7 and 8: :: Capacities and Main Dimensions -
Page 9 and 10: :: Capacities and Main Dimensions -
Page 11 and 12: :: Recommended Reinforcement Patter

RVK & TSS Staircase Connections

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