What is the common name for a heavy steel frame building? pole building post-frame building rigid-frame building post-and-girde building

## Step 1<br />The question asks for the common name of a heavy steel frame building. The options provided are pole building, post-frame building, rigid-frame building, and post-and-girder building.<br /><br />## Step 2<br />A pole building is a type of construction that uses poles or columns to support the roof. This does not match the description of a heavy steel frame building.<br /><br />## Step 3<br />A post-frame building is a type of construction that uses posts or columns to support the roof. This also does not match the description of a heavy steel frame building.<br /><br />## Step 4<br />A rigid-frame building is a type of construction that uses a heavy steel frame to support the roof. This matches the description of a heavy steel frame building.<br /><br />## Step 5<br />A post-and-girder building is a type of construction that uses posts and girders to support the roof. This does not match the description of a heavy steel frame building.