King Power Mahanakhon, Thailand
King Power Mahanakhon is a 77-storey skyscraper in Bangkok. Standing at 314 meters, it became Thailand’s tallest building upon its completion in 2016. Mahanakhon is located in Silom, Bangkok’s busiest business district, directly above the Chong Nonsi BTS Skytrain station. The project was developed by PACE and built by Bouygues-Thai.
Fondations
Building foundations in Bangkok is always a challenge. With the city situated on sandy and humid soils, foundations must be deep, and most projects feature thick parois moulées (D-Walls) to prevent water infiltration.
For the D-Walls of Mahanakhon, Dextra supplied Bartec rebar couplers that were mounted on hook bars, installed horizontally, and cast in concrete. This application allows for the reconnection of bars to the D-Wall at a later stage when starting slab Armatures.
Additionally, headed bars were installed in the thick foundation mat. Barres à tête are a superior alternative to Epingle in congested areas, offering high-performance anchorage while being easier to install.
Superstructure
The tower is built around a Noyau principal, constructed using slip-formwork, and is surrounded by 12 mega columns. To connect the columns to the Noyau principal, Dextra supplied Bouygues-Thai with its renowned Bartec solution. Bartec couplers, installed flush with the formwork and cast in concrete, allow for second-phase bar reconnection, bridging the columns and Noyau principal.
In the mega columns, rebar couplers were also used to perform bar-to-bar vertical connections.
Barre de ciel
For the rooftop skybar, Dextra supplied Tension Rod Systems. These systems, equipped with fork ends, provide aesthetic and efficient anchorage, making installation simple and effective.
