What is bolted Angle Joint? Explain in details step by step procedure to make a bolted Angle Joint with example and application.
A bolted angle joint is a type of joint used to connect two structural members at an angle, typically using angle brackets or plates and bolts. It provides strength, stability, and load transfer between the members. Here is a step-by-step procedure to create a bolted angle joint:
Step 1: Prepare the materials Gather the materials you want to join using the bolted angle joint. These could be metal beams, wooden beams, or any other suitable structural members. Ensure that the materials are clean, free from debris, and have smooth surfaces for optimal contact.
Step 2: Determine the angle bracket or plate size and location Decide on the size and location of the angle bracket or plate. The bracket or plate should be made of a material strong enough to withstand the loads and stresses applied to the joint. Determine the appropriate dimensions based on engineering calculations or specifications.
Step 3: Mark the angle bracket or plate location Using a measuring tool, mark the angle bracket or plate location on the two members that will form the joint. This will help you align the bracket or plate accurately during the assembly process.
Step 4: Prepare the joint surfaces To ensure a strong and secure joint, prepare the joint surfaces of the members. This may involve cleaning, sanding, or planing to remove any irregularities, burrs, or contaminants. The goal is to create clean, smooth, and flush surfaces for optimal contact and load transfer.
Step 5: Attach the angle bracket or plate Position the angle bracket or plate on the marked locations of the two members. Align the holes on the bracket or plate with the holes that will be drilled on the members. Use clamps or other holding devices to secure the bracket or plate in place.
Step 6: Drill holes for the bolts Using the pre-drilled holes on the bracket or plate as a guide, mark the hole positions on the members. Then, drill holes through the members at the marked positions. The hole diameter should match the size of the bolts you intend to use.
Step 7: Insert the bolts Insert the bolts through the holes in the bracket or plate, passing them through the members. Place washers under the bolt heads and nuts to distribute the load and prevent damage to the bracket or plate and members.
Step 8: Tighten the bolts Using an appropriate tool such as a wrench, tighten the nuts on the bolts to secure the bracket or plate and members together. Apply even pressure while tightening to ensure a uniform clamping force.
Step 9: Verify the joint Inspect the joint to ensure it is properly assembled and secure. Check for any misalignment, gaps, or loose bolts. Make any necessary adjustments or re-tighten the bolts if needed.
Example and application: Let’s consider an example of a bolted angle joint in construction. Suppose you are building a wooden frame for a bookshelf, and you need to connect the horizontal shelves to the vertical side panels at an angle.
You prepare the shelves and side panels by cleaning their surfaces, marking the angle bracket or plate location on the side panels, and drilling holes for the bolts