AISC Specification J3. 5 indicates that the maximum edge distance for bolt holes is 12 times the thickness of the connected part (but not more than 6 in.). The maximum spacing for bolt holes is 24 times the thickness of the thinner part (but not more than 12 in.).
How close can bolts be together?
Considerations for bolting anchors
Bolts should be about eight inches apart in good rock, such as granite, and up to 18 inches apart in softer rock. Anchor bolts placed closer together than that could fracture the rock.
What is the maximum spacing for the anchor bolts?
The maximum anchor bolt spacing shall be 4 feet (1219 mm) for buildings over two stories in height. Stepped cripple walls shall conform to Section R602.
What is the minimum allowable bolt spacing per AISC?
The minimum spacing between bolts and distance to the bolt centre to an edge of a connected part are checked. The minimum spacing 2.66 times (editable in Code setup) the nominal bolt diameter between centres of bolts is checked according to AISC 360-16 – J.
What is end distance of bolt?
End distance (e1), i.e., the distance measured in the line of force from the center of the bolt hole to the nearest edge of an adjacent hole or to the end of the plate , has effects on the ultimate strength and failure mode of a bolted connection subjected to tensile loading.
How far apart do you put J bolts in concrete?
Placement is approximately every 6 to 8 feet depending on code, with one not more than 12 inches from each end of a wall bottom plate. Make sure not to put a J-bolt in the middle of a doorway. Hammer an 8d nail on the outside of the concrete form to mark the J-bolt positions.
What is the minimum edge distance?
Minimum edge distance is 2 · d for steel with Ryn ≤ 375 MPa and 2.5 · d otherwise in the direction of the shear load. Minimum edge distance is 1.35 · d in the direction perpendicular to the shear load. Minimum edge distances may be smaller under some circumstances specified in SP 16, Table 40.
How long do anchor bolts need to be?
As a rule of thumb, the space for the nut and washer is equal to the diameter of the wedge anchor being used. For example, if a 2×4 is being fastened to concrete with a 1/2” wedge anchor then the minimum length of wedge anchor would be 1-1/2”(2×4) + 2-1/4”(minimum embedment) + 1/2”(space for nut and washer) = 4-1/4”.
How far apart should Tapcon screws be placed?
Most basement slabs are 3 1/2-4″ thick, so either length tapcon should work. Spacing them 4′ apart should be plenty often, or even less.
What is the code for anchor bolts?
There shall be a minimum of two bolts or anchor straps per piece with one bolt or anchor strap located not more than 12 inches (305 mm) or less than 4 inches (102 mm) from each end of each piece. A properly sized nut and washer shall be tightened on each bolt to the plate.
How do you calculate bolt spacing?
For example: The length of a workpiece is 48″ and you decide to install five screws as fasteners. The formula is: 5 + 1 = 6. Dividing this total into the 48″ length, means the five screws should be spaced every 8 inches – at 8″, 16″, 24″, 32″ and 40″.
How do you measure bolt spacing?
For a 4 lug wheel, measure center to center of two holes directly across from each other. Measuring a 6 bolt wheel requires you to measure center to center of two holes directly across from each other. To measure an 8 lug bolt pattern, measure center to center of two holes directly across from each other.
What is the maximum spacing of bolts if the connection is not subjected to corrosion?
The maximum spacing for bolts between painted members or unpainted members not subject to corrosion is 24 times the thickness of the thinner part (but not more than 12 in.).
What is maximum pitch distance?
Explanation: Pitch shall not be more than 16t or 200mm, whichever is less in tension member where t is thickness of thinner plate. Pitch shall not be more than 12t or 200mm, whichever is less in compression member, where t is thickness of thinner plate.
What is Edge distance?
Edge distance is a term used in sheet metal aircraft construction. It refers to the distance from the center of a rivet to the edge of the material it is holding together. Edge Distance. We know the common fastening system for aluminum aircraft components is rivets.