### What is the design criteria of Extended End-Plate Splice Joint? Explain in details step by step procedure of a design of Extended End-Plate Splice Joint with required formula and an example of calculation

The design criteria for an Extended End-Plate Splice Joint, also known as an Extended End-Plate Connection, will depend on the specific requirements of the structural system and the applicable design codes or standards. This type of connection is commonly used in steel structures to join two members together.

Here is a step-by-step procedure for designing an Extended End-Plate Splice Joint:

Step 1: Identify the Joint Requirements Determine the specific requirements of the Extended End-Plate Splice Joint, including the type and size of the members being joined, the applied loads, desired safety factors, material properties, and any applicable design codes or standards.

Step 2: Analyze the Splice Joint Geometry Analyze the geometry of the members being joined, including their cross-sections, lengths, and thicknesses. Determine the end preparations required for the Extended End-Plate Splice Joint, such as the size and shape of the end plates and the number and diameter of the bolts.

Step 3: Determine the Applied Loads Identify the loads that will be applied to the splice joint, such as axial forces, bending moments, and shear forces. Determine the magnitude, direction, and distribution of these loads.

Step 4: Calculate the Connection Strength Calculate the required strength of the Extended End-Plate Splice Joint based on the applied loads, material properties, and desired safety factor. This may involve calculations for tension, compression, bending, and shear strength, depending on the loading conditions.

Step 5: Design the End Plate Based on the calculated connection strength, design the end plate for the joint. Consider the material properties, thickness, length, and width of the end plate. Ensure that the end plate is capable of transferring the required forces between the members.

Step 6: Design the Bolts and Bolt Layout Determine the size and number of bolts required for the connection based on the calculated loads and the desired bolt capacity. Consider factors such as bolt spacing, edge distances, and bolt type (e.g., friction grip or bearing).

Step 7: Detailing and Installation Considerations Prepare detailed drawings and specifications for the Extended End-Plate Splice Joint, including the location, dimensions, and installation requirements for the end plates and bolts. Consider constructability, accessibility, and any additional requirements for joint detailing and installation, such as bolt tightening torque.

Please note that the above steps are a general guideline, and the actual design process may vary depending on the specific project requirements, design codes, and standards. It is important to consult with a qualified structural engineer and refer to the appropriate design codes and standards for a complete and accurate design of an Extended End-Plate Splice Joint.

As an example, let’s consider the design of an Extended End-Plate Splice Joint for two steel beams:

Step 1: Identify the Joint Requirements Assume we have two steel beams with known properties and dimensions that need to be joined by an Extended End-Plate Splice Joint.

Step 2: Analyze the Splice Joint Geometry Analyze the geometry of the beams, considering their cross-sectional dimensions, lengths, and thicknesses. Determine the end preparations required for the Extended End-Plate Splice Joint, such as the size and shape of the end plates.

Step 3: Determine the Applied Loads Determine the applied loads on the splice joint, such as axial forces, bending moments, and shear forces.

Step 4: Calculate the Connection Strength Calculate the required connection strength based on the applied loads, material properties, and desired safety factor. This may involve calculations for tension, compression, bending, and shear strength.

Step 5: Design the End Plate Design the end plate to transfer the required forces between the beams. Consider the material properties, thickness, length, and width of the end plate.

Step 6: Design the Bolts and Bolt Layout Determine the size and number of bolts required based on the calculated loads and the desired bolt capacity. Consider factors such as bolt spacing, edge distances, and bolt type.

Step 7: Detailing and Installation Considerations Prepare detailed drawings and specifications for the Extended End-Plate Splice Joint, including the location, dimensions, and installation requirements for the end plates and bolts. Consider constructability, accessibility, and any additional requirements for joint detailing and installation.

The specific calculations and design details for the Extended End-Plate Splice Joint will depend on the project requirements and design codes. Consulting with a qualified structural engineer and referring to the appropriate design standards is crucial to ensure a safe and accurate design of an Extended End-Plate Splice Joint.