जब दो प्लेटों को आमने-सामने (एक छोर से दूसरा छोर मिलाकर) रखा जाता है और उन्हें कवर प्लेटों द्वारा जोड़ा जाता है, तो इस जोड़ को कहा जाता है:

The strength and size specification of a butt weld is primary specified by its:

As per IS 800, the maximum bending moment for the design of purlins can be taken as (where W is the total distributed load including wind load on purlins and L is the effective span/centre distance of supports):