You can use the File Motion File Export to export .bvh files into 3ds Max. 
To import a .bvh file into 3ds Max:
- Create a BIPED in the Systems > Create panel. 
 
- Go to the BIPED settings under Motion. 
 
- Open the Motion Capture tab. Twelve icons appear but only three are active. 
 
- Click the first icon (top left, a folder and a camera) to display a file browser. 
 
- Select bvh as the File of Type. 
 
- Browse and select the .bvh file that you saved in MotionBuilder. 
Tip: If you do not need to work with all the data in a raw motion-capture file, you can choose Use Key Reduction in 3ds Max to reduce keys for simpler key editing. Doing so minimizes the file size. 
  
- Activate the Point option under Knee and Elbow in Limb Orientation. 
 
- Click OK in the dialog box. 
 
- Play back the animation on the Biped. 
 
Only one rotation order per file is supported.