In a pure truss, members experience only axial tension or compression, with no bending or shear forces, as loads act solely at the joints. However, real-world conditions introduce member dead weight, which is treated as point loads at the joints, and external loads can create moments and shears that should be minimized. It's essential to analyze individual members for bending stresses to ensure they are not overstressed when combined with axial loads. Proper load distribution and consideration of additional forces are crucial for accurate truss design. Understanding these principles is vital for effective truss analysis and ensuring structural integrity.