Mid Valley Tower of Light

Mid Valley Southpoint or also known as Mid Valley Tower of Light is a development carried out on the last remaining available parcel, Parcel 3 within the Mid Valley City, a colossal scale mixed development, acting as the final jigsaw piece for Mid Valley City’s mixed development. The Mid Valley Southpoint development is a single block of 60-storey tower which comprises of 19-storey of serviced apartment (Level 38 to Level 56), 29-storey of offices (Level 8 to Level 36), 7-storey of elevated car park (Level 1 to Level 7), 2-storey of retails (Ground Floor & Ground Floor Mezzanine) and 5-storey of basement car park (Basement 4 to Lower Ground) at Mid Valley City, Kuala Lumpur. The overall building height for the Mid Valley Southpoint tower stands tall at approximately 243m.

Technical Description

Kenny Hill formation enable Diaphragm wall to be adopted as the perimeter basement wall. As top-down construction was adopted, the floor slabs at the basement excavation act as strut to the Diaphragm Wall as the excavation progresses downwards. Plunged in King Post of steel columns provides support to gravity loads as the top-down construction progressed.

The Mid Valley Southpoint tower structure comprises of a centred reinforced concrete lift core wall along with perimeter columns system. The central core wall was formed by 1000mm thick barrette pile wall commencing from the ground floor. The reinforced concrete core wall will be supported by the barrette pile wall from ground floor to Level 60. The tower perimeter columns were designed as circular columns, 450mm thick reinforced concrete band beam system framing the perimeter tower column and 290mm thick slab was adopted at the tower office floor to maximise the headroom height. Post tensioned slab system was adopted at the tower serviced apartment floor and reinforced concrete band beam system was adopted at the basement, ground floor and car park floors. Transfer structures were introduced at Level 38 to transfer the shear wall and column from the serviced apartments above to accommodate the change in column grid below the transfer structures at Level 38.

The 60-storey tower’s foundation was supported by 2.0m thick piled raft foundation with combination of 1000mm thick barrette piles, 3.5m diameter caisson piles and 1.8m bored piles while the podium columns were supported by 1.3m thick piled raft foundation with 1.8m and 1.5m bored pile with plunged in column.

Project Highlights, Achievement and Recognition:

• Top-down construction technique was used for the formation of deep basement structures. Construction time was reduced as the superstructure floor could be constructed in parallel and/or simultaneously along with the basement construction.
• Transfer structure was adopted at high level (Level 38) which was supported by the perimeter tower columns and centre core wall. Due to late changes in usage requirement from a office to apartment building at Level 38, the structural configuration design, innovative construction methodology to mitigate the high induced forces due to significant relative elastic shortening of tower column and centre core wall.
• It’s the 15^th tallest skyscraper in Malaysia and top 500 tallest building in Asia according to The Council on Tall Buildings and Urban Habitat (CTBUH), 2022.