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1 1. PRECAST WALL CONNECTORS Tunel Pey Khazar PSK Wall Nail are precast wall connectors designed for tension splicing. The structural connection between precast wall and other concrete element is achieved by using a bolt and a wall nail. These wall connectors are usually used in stiffening walls but can also be used as structural fixings for other types of precast walls. Tunel Pey Khazar wall connectors are designed in six different sizes offering a maximum range of capacities.

2 The loads are transferred from the precast wall to the load bearing structures with the help of Tunel Pey Khazar wall connectors and anchor bolts as seen in the next picture : PSK Wall Nail Benefits Easy and fast element installation into the mold

3 Comfortable and fast bolt connection, no welding needed Strong tensile connection: enables element building of shear walls Large size and capacity range Invisible after installation Fully working connection once installed. The connection is functional and is able to transfer forces according to capacities during building process. 2. DIMENSIONS AND MATERIALS Materials and standards: Plates S355J2+N EN ksi Yield strength Metal Sheet S235JR EN ksi Yield strength Ribbed Bars A500HW SFS ksi Yield strength

4 MANUFACTURING 3.1 Manufacturing method Plates Flame or mechanical cutting Ribbed Bars mechanical cutting Welding MAG by hand or with a robot Welding class C (SFS-EN-25817) 3.2 Manufacturing markings Products are marked with the mark of the Arsad, the emblem of the Tunel Pey Khazar Group, the type of the product, the year and the week of manufacturing. 3.3 Quality control Tunel Pey Khazar wall nail have certified product declarations that can be consulted upon request. 4. CAPACITIES OF WALL SHOES The anchor bars of the Tunel Pey Khazar Wall Nail are calculated for concrete grade of 5000 PSI. The Wall Nail are dimensioned for the tensile force that comes from HPM or PPM anchor bolt. The capacities of the joints are related to the bolt used. The anchor bolt can be a short or a long type depending on where the bolt is going to be used. Thicker and bigger AL washers have to be used depending on the bolts used in connection with the Wall Nail. ETA approval guarantees that the product fulfills requirements of construction and is suitable for use according to instructions. ETA approval also guarantees that capacities of the product are calculated according to methods generally approved and

5 that this independent organization is implementing quality control with manufacturing. ETA approval grants the right to use CE-marking for the products 5. APPLICATION 5.1 Principle of application Tunel Pey Khazar precast Wall Nail are used in tensile connections of shear walls. Wall Nail transfer only tensile forces. The pressure load in horizontal joint is transmitted via grouting of the joint. The thickness of concrete cover surrounding the Wall Nail must be adequate according to fire resistance, environmental exposure class and intented operating life. 5.2 Limitations for application The capacities of the precast Wall Nail have been calculated for static loads. In the case of dynamic and fatigue loads, greater safety factors have to be used individually for each case. If the

6 If the application conditions are below 4 F, it is necessary to consider using plates with better cold impact resistance. 5.3 Design principles Dimensioning Forces inside the element are transferred from the Wall Nail to the overlapping bolt by the reinforcement of the element. 2 or 4 reinforcement bars might be needed in addition to the mesh depending sizes of the precast Wall Nail. The capacity of the reinforcement has to be the same as the bolt s and the Wall Nail s capacity Reinforcement of the precast wall The upper element is reinforced for the loads directed on the precast wall. The Wall Nail anchors to the lower element. In each element, the forces are transferred with the help of the element s reinforcement. The necessary reinforcement is selected according to table 3 and figure 2, either mesh + 2 additional reinforcement bars or mesh + 4 additional reinforcement bars. The forces are transferred to the foundations trough anchoring bolts. Depending on the type of the foundation the bolts are either HPM/L and PPM/L short bolts or HPM/P and PPM/P long bolts.

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8 5.3.3 Edge and centre distances

9 5.3.4 The concrete cover thickness The fire resistance period and environment class, in which the Wall Nail is located, defines the concrete cover thickness. Concrete cover thickness is measured from the bottom plate s front to the concrete surface. It is also measured from the rear of the plate to the concrete surface Height level of the anchoring bolt The joint thickness between the precast wall elements defines the height level of the bolt. 6. INSTALLATION 6.1 Installation tolerances of Tunel Pey Khazar precast wall Nail Installation tolerance of the wall Nail in longitudinal direction of the bottom plate is ±1 inch and in horizontal direction is ±3/16 inch. 6.2 Installation of Tunel Pey Khazar precast wall nail The Wall Nail is attached to the mold for example by nails. The concrete cover thickness in front of the Wall Nail is ensured by the installation piece (plywood). 6.3 Erection of the precast wall nail

10 The precast wall element is erected to correct height with the help of shims. The precast element has to be supported properly. The element has to be checked to make sure that it is in the right position and then the nuts of the anchor bolts are tightened. As the nuts are tightened, the washer must be turned inside the bottom plate s edges. The lower joint of the element will be grouted afterwards or the concrete element must be erected on fresh non-shrinking mortar. The mortar joint has to be according to the local regulation having jurisdiction. The grouting has to be done before the upper structures are installed 7. INSTALLATION CONTROL 7.1 Erection of precast wall Fastening must be done according to installation plan made by the designer. The following must be checked:

11 Installation order Support during installation Bolt s tightening instructions Instructions concerning the grouting