Third Millennium Towers Home

The Towers

The Third Millennium Towers are actually a combination of three separate towers at 30 floors that look like one solid block from the outside. These towers are connected with skyways at selected floors for a secluded access to different levels.

The Floor Area

The building’s structural height reaches 110 meters above ground level, and with the helipad and rooftop structure, the total height increases to 118 meters. With over 400 residential units planned, the three towers offer 125,000 square meters of floor area.

The Lot

The complex grounds are bound by the Sheykh Bahayi boulevard from the west which is the main access street to the building and from Golestan street from the east that offers an extra 3 entrance gates to compliment the project area.

Parking

The TMT towers offer over 630 parking spots at 4 levels beneath Ground Floor at a bigger footprint than the building. This number can rise up to 750 spots under the developed application of the building.

Mechanical Systems

The building offers over 2000 square meters of building services including boilers, chillers, diesel generators, booster pumps and more. These rooms are located on the north end of the site alongside the parking levels at 4 stories beneath ground floor.

30floors

125,000m²

15,200m²

630parking spots

2,000m²

GF-1-2-3-4

Location

The towers offer various access from south, east and west. These routes lead to four uniques entrances to the ground level of the site, that can evenly distributes the traffic load in the neighborhood; something that is difficult to witness these days with a project of this magnitude sitting in the heart of a city like Tehran.

Base Plate 2

Corner Columns

The building’s structural height reaches 110 meters above ground level, and with the helipad and rooftop structure, the total height increases to 118 meters. The north and south towers are identical, but the central tower, while having the same height, has a larger built-up area. Together, the three sections of the Millennium Tower form a regular rectangular cuboid. The building’s structural height reaches 110 meters above ground level, adf s ada nd with the helipad and rooftop structure, the total height increases to 118 meters. The north and south towers are identical, but the central tower, while having the same height, has a larger built-up area. Together, the three sections of the Millennium Tower form a regular rectangular cuboid.

Concrete Mat Thickness: 200 cm

Number of Anchor Bolts: 24

Base Plate thickness: 4 cm

Anchor Bolt height: 170 cm

Spacer Grid height: 35 cm

Anchor Bolts bolts

Concrete Bed

Spliced Connection 1

Spliced Connection

Spliced connections in steel columns are used to extend column height while ensuring continuous load transfer. They are strategically placed at specific floor levels, often at every two to three stories, depending on construction feasibility and lifting constraints. These connections must provide strength, stiffness, and stability while accommodating potential forces like axial compression, bending moments, and shear. The Third Millennium Towers use bolted spliced connections on the ground floor for center and corner columns.

Column size and section properties: (e.g., W-sections, box sections)

Material strength: (e.g., ASTM A992 steel for wide flange sections)

Bolt strength and number of bolts: (A325 or A490 high-strength bolts)

Weld type and size: (fillet vs. full-penetration groove weld)

Plate thickness: 3 cm

Spliced Connection 2

Spliced Beam Connection

Spliced Beam Connections are commonly used in steel structures to join two segments of an I-beam when a single, continuous beam is not feasible due to transportation or handling constraints. In the Third Millennium Towers the these connections have been adopted in the exterior cluster where as the beam extensions are welded to the column and connected to each other using high-strength ASTM A325 bolts.

Column size: 560x300 mm (C2)

Beam size: 2440x780x200 mm

Bolt details: x24 A325 bolts

Weld type: full-penetration groove weld

Plate thickness: 15 mm

Connections

The TMT structural system is composed entirely of steel, with both the main vertical and lateral elements, as well as the floor spanning systems, constructed from cast-in-place concrete reinforced with steel. The tower’s design features a projected grid extending 100 centimeters outward, which casts shadows over customized openings on the facades. This approach exposes the building’s structural framework, integrating it into the exterior aesthetic.