You are confused. DB2 for z/OS and DB2 for Linux, UNIX, and Windows (LUW) are different products. DB2 for LUW does not have simple, segmentated, LOB, and partitioned tablespaces (these for for DB2 z/OS).
If you want to see the tablespace types for DB2 LUW, refer to the SQL Reference Vol 2. For more information, see the WindowsData Servers, Databases, and Database Objects Guide, which is available in PDF for download at the IBM website for no charge.