yes there is but most of sap2000 users consider it difficult (they used to do it in the past when using sap90)
sir..
all u have to do is to generate ur geometry using sap 2000 and then use the editable file s2k and generate the solid element the same way as sap90....
and the re import the file from sap200
I suggest you mesh the solid using femap, tranfer to staad. from staad file tranfer to sap2k via staad2sap translator. (bundled sap2k in some version). SAP8 now support mesh solid....