LOTTE WORLD TOWER

Tower Story

Engineering & Technology

Safety Technology Verified in World’s Supertall Skyscrapers

Strong Mat Foundation

Compact Filling of Mat Foundation of 72m (W) x 72m (L) x 6.5m (H)

As the supertall skyscrapers on the side of Lake Michigan in Chicago in the US, The safety of skyscrapers near a lake has been verified by the cutting-edge geodynamics and civil.

Comparison of Rigidity of Foundation

기획 확인 요망 기획 확인 요망 기획 확인 요망

Foundation(MAT) practice

The weight of completed Lotte World Tower is 750,000 ton, and it is equivalent to total weight of around 10 million Seoul residents assuming an adult weighs 75kg. To support such a gigantic building, the mat foundation sized 72m (W) x 72m (L) x 6.5m (H) was constructed by digging the ground to 38m in depth, driving 108 steel columns of 1m in diameter and 30m in length through the firm bedrock layer to reinforce the bedrock, and then placing reinforcing bars of 4,200 ton and pouring high strength concrete of 60,000 ton. It is much thicker than the world’s tallest building Burj Khalifa used 2.5 times concrete.

Concrete Barrier Wall with Thickness of 1m and Depth of 27m

A concrete barrier wall with thickness of 1m and depth of 27m is inserted into the bedrock around the whole building to block penetration of underground water.

기획 확인 요망 기획 확인 요망 기획 확인 요망

Wind Resistance and Earthquake Resistance Design

World’s Best Level of Wind Resistance and Earthquake Resistance Design

A wind of 30m/sec. at 10m from the ground becomes a gale of 56m/sec. at 555m from the ground. Lotte World Tower is designed to withstand the gale of 50m/sec. and Richter9 magnitude earthquake.

  • 9 Earthquake Resistance Design

    Earthquake resistance design to withstand Richkter-9 or higher magnitude earthquakes

  • 80m/s Wind Resistance Design

    Withstanding typhoons of 80m/sec. in 555m high from the ground Earthquake resistance design to withstand the gale in the same level as Hurricane Katrina

  • 기획 확인 요망 기획 확인 요망
    Core Wall and Eight Mega Columns

    The core wall and eight mega columns which are the center frame of the tower supports the vertical gravity.

  • 기획 확인 요망 기획 확인 요망
    Outrigger and Belt Truss

    The outriggers and belt trusses that function like joints of bamboo are installed in every 40 floors in Lotte World Tower to withstand the traversal pressure of typhoon and earthquake.

  • 기획 확인 요망 기획 확인 요망
    Diagrid method of construcition

    The diagrid structure at the top connects the steel frames like a mesh to withstand the traversal pressure of typhoon and earthquake without additional column or support.

Structural Safety Management Technology

Architectural Health Monitoring System
기획 확인 요망

“Structural Health Monitoring System” to manage the structural safety of Lotte World Tower The Structural Health Monitoring System monitors the structural safety and risk from typhoon, earthquake and terror. More than 600 sensors and the cutting-edge measuring system installed in the building checks the health of building in real time using the integrated monitoring system.

Disaster Prevention System

Disaster Prevention System Conforming to IBC (International Building Code) and NFPA (National Fire Protection Association) Standard
  • IBC International Building
    Code
  • NFPA National Fire Protection
    Association

At the time of fire, the fireproof concrete can withstand for at least 3 hours, and 19 high speed elevators are immediately converted into the evacuation elevator to evacuate people from each floor to five safety zones within 15 minutes. 15,000 residents can be all evacuated within 63 minutes. It is the better plan than Burj Khalifa which requires 89 minutes to evacuate people to four safety zones.

Evacuating Elevator 기획 확인 요망 기획 확인 요망 기획 확인 요망
Evacuation Period 기획 확인 요망 기획 확인 요망 기획 확인 요망

More than 160,000 spring coolers and 30,000 fire sensors are installed in Lotte World Tower. Five fire fighting water sources can supply the water for up to 300 minutes, and the emergency power generator operates the spring coolers to delay proliferation of fire at the time of power interruption. The safety system exceeds the international standard, and the disaster prevention system operated for 24 hours a day can immediately mobilize the internal fire engines and fire fighters (including professional fire fighters) to extinguish a fire quickly. Moreover, the joint anti-terror training in the realistic simulated situation against the international terror ensures prevention of risks and protection of citizens.

Green Complex

GREEN COMPLEX

Using the eco-friendly system turning the natural resources such as rainwater, river water source, solar energy and geothermal energy, Lotte World Tower received the LEED Gold Rating by U.S. Green Building Council.

Energy Plan Optimization

  • Greening of Rooftop

    Insulation through greening of rooftop to reduce heating/cooling load and environmental pollution

  • High Insulation Glass (Low-E)

    Reduction of heat loss in winter and blocking of heat in summer

  • Recycling of Heavy Water and Rain Water

    Heavy water treatment facility (1,200t) to recycle wastewater and rain water storage tank (1,800t)

  • High Efficiency Equipment and Apparatus

    Reduction of heat loss in winter and blocking of heat in summer

New & Renewable Energy

  • Solar Heat Collector

    Collection of solar energy in rooftop to be used for heating and hot water

  • Wind Power Generation

    Wind power generator installed in upper floors and around the complex to generate electricity

  • Geothermal Heating and Cooling

    Heating and cooling system using underground heat

  • Collection of Waste Heat from Domestic Sewage

    Waste heat from heavy water and rain water used for heating and hot water supply

Benefit of New & Renewable Energy

  • Solar Heat Collector
  • Plus
  • Wind Power Generation
  • Plus
  • Geothermal Heating and Cooling
  • Plus
  • Collection of Waste Heat from Domestic Sewage
  • Plus

“Internal production of 51,168Mwh power which is 14.5% of total energy use annually” “Reduction of 23,113t CO2 which is equivalent to planting 8.5 million 20-year old pine trees annually”

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