If my previous post doesn't work, I think you have no choice but to rebuild the entire database.

You can do to the following in replacement of bcp in/out.

Create a new database with all the TABLE STRUCTURE ONLY, no PK, FK, Constraints, NO SP, no Triggers.....

This db is create in the same instance.

Copy over the data with T-SQL INSERT.. SELECT statements for all tables. Some table may not be able to copy if they are corrupted.

Create all PK, FK, Constraints, SP and all other database objects required to be the same as the original database.

Run DBCC CHECKDB to find errors.

Backup your database.