The number of anchor rods for shear nv must be considered as half the number of anchor rods at the plate or, in case of plate washer welded to the plate between the anchor rod nut and the top of the base plate, as the total number of anchor rods at the plate. The steel yield limit of the base plate and shear lug, the steel tensile strength of the anchor rods and the concrete compressive strength the user can choose between preexisting materials or input new properties ;. For complaints, use another form. If you need help with design, you can work with our expert Hilti engineers — contact your local Hilti team for more help. Edge distance at least 50 mm Cast-in anchors must be fixed at least 50 mm from the edge of the slab for both in situ concrete and masonry header blocks. First analyzing the case of compression, classifying a base as compressed with large moment means to consider traction on part of the anchors.
The anchor rods force Ft,Sd is given by equation 26 and the plate thickness is determined the same way as for plates subject to compression force with large moment, equations 17 , 18 and We also offer back up engineering services to help with design, design software, onsite testing and consultation, training, technical data and documentation. The Brazilian standard NBR To ease computational implementation, eight flowcharts were developed. Sorry, we are not able to log you in. The minimum thickness can be defined the same way as for base plates subject to small moments, equations 17 and
Figure 18 analyzes the thickness of the base plate plots, in both cases, tensioned and compressed with moment. This result is inconsistent because the base is considered subject to compression with large moment and the fact that there is no tensile force in the anchor rods makes the base a case of compression with a small moment. Take a look at this important anchor technical information page to determine the diameter of the anchor to use for a range of required torque values. With the development of this software, the authors intend to provide the academic community a toll of easy use and in accordance with Brazilian design standards prescriptions which also enables comparison between the uniform and triangular bearing pressure hypotheses. Analogously, Table 3 shows the input data and results of some of the bases designed with compression and moment.
Contact your preferred store for product availability. The diameter of the anchor bolt is calculated by the software and indicated in commercial dimensions, with a minimum limit of 16 mm. Each Fixing Anchor is nailed prior to concrete pour, and shall be left undisturbed until concrete has hardened ready for timber frames to be installed. Additionally, most texts about this kind of connection consider a triangular pressure distribution between the concrete and the base plate. The thickness determined by equation 35 considers bending at the plate caused by contact pressure.