| Vertical Load Carrying System | 9" lightweight reinforced concrete slabs supported by deep beams and recinforced columns. |
| Lateral Force Resisting System | Reinforced concrete frames with East and West shear walls in the North-South direction and shear walls around the elevator shaft in the EW direction. |
| Foundation Type | A central concrete pad extneding from the East curved wall to the West curved wall as well as two parallel foundation beams in the North and South pf the pad. |
| Remarks | The instrumentation of the building was initiated right after its construction, but the current dense system has been deployed since 1998. Also, an eccentric mass shaker with peak frequency of 9 Hz was permanently installed on the roof in 1970. |
