Nine basic components of ancient architecture

1, hard mountain building. There are only two slopes on the roof, the gables on both sides intersect with the roof, and the purlin beams are all sealed in the gables, which is called hard gable building. 2. Three purlins. 3. Five beams. 4. Three beams. 5. Six beams. 6. Four beams. 7. Top beam. 8. Two-step beam. 9. Tilt the two-step beam.