Taisei Corporation's Technologies and Services

Taisei Corporation's Technologies and Services

Introduction to Innovative Technology Development to Solve Society's Problems and Diverse Solutions to Respond to Customers' Needs

Taisei Corporation's Urban-style Zero Energy Building (ZEB)

Taisei Corporation is aiming to realize an “urban-style ZEB”, which is unprecedented in the world.
This “urban-style ZEB” will overturn traditional concepts, and is a new concept of building that can provide a comfortable interior environment, while controlling the energy balance of the building to zero over the years. In the “urban-style ZEB”, we are undertaking technological development based on 3 fundamental concepts in order to achieve the change from energy conservation to zero energy.

The ZEB Demonstration Building at the Technology Center. It was the first building in Japan to obtain the highest 5-star rank in the Building Energy-efficiency Labeling System (BELS)

The ZEB Demonstration Building at the Technology Center. It was the first building in Japan to obtain the highest 5-star rank in the Building Energy-efficiency Labeling System (BELS)

Technologies introduced into the “ZEB Verification Building”

Low brightness task & ambient lighting system
  • By combining a natural light system with ultra high efficiency LED indirect lighting the feeling of brightness in the interior is achieved
  • High efficiency downward-facing LED lighting is controlled using motion sensors to determine whether a person is present or absent
  • The lighting environment on the desk surface is adjusted in accordance with preferences using soft light from organic EL task lighting
Task & ambient air conditioning system using waste heat
  • Chilled water is produced with an adsorption refrigerator effectively utilizing low temperature waste heat of fuel cells
  • A comfortable environment is provided and drive power is reduced by radiative air conditioning of the building structure
  • Both comfort and energy efficiency are achieved by selecting the air flow rate to suit an individual's preference and control of external flow rate with seat occupancy information
Organic thin film solar panel external wall units

Application of organic thin film solar panels to wall surfaces, utilizing their characteristics

  • The color can be selected or changed because the material is organic
  • The freedom of form and dimension is increased by using the roll-to-roll system
  • Constructability is improved because it is lightweight, and can be integrated with the building materials
T-Light Cube
  • Natural light is illuminated onto the ceiling surface, which reduces the feeling of glare while increasing the feeling of brightness in the interior
  • With a fixed structure, direct sunlight at various elevations throughout the year can be brought into the building
  • The light reaches deep into the interior, not just around the windows, so the lighting energy is minimized
T-Fresh Air
  • Opening and closing of windows is determined using measurement data such as wind and external air temperature, room temperature, location of people, etc.
  • A comfortable interior thermal environment is controlled by the intake of external air
Urban-style small displacement seismic isolation
  • Realization of seismic isolation that ensures the maximum building area in densely built up urban areas
  • The seismic isolation clearance is kept to within 30 cm by switching oil dampers
  • Ensures safety in a major earthquake and feeling of security in small and medium earthquakes

Increasing Productivity

Building and Civil Engineering Design Solutions using BIM and VR/CIM

We are working on using BIM and VR/CIM for greater quality. BIM (Building Information Modeling) is a 3-dimensional virtual model of a building constructed within a computer, in which all the attribute information required for design, construction and maintenance of each member is recorded, and currently we use it on about 70% of our design projects. By coupling this with virtual reality (VR) technology, interior and exterior views of the building can be visually represented, thereby creating greater added value in a wide range of activities such as planning, design and maintenance. In the civil engineering field also, Construction Information Modeling (CIM) is being introduced as a revolutionary tool using ICT equipment and systems and 3-dimensional data models, to increase productivity in the civil engineering industry.

BIM of the Technology Center ZEB Building

BIM of the Technology Center ZEB Building

Development of Next-generation Unmanned Construction System with Automatic Control of Construction Machinery

We are developing an autonomous control system in which by just inputting the work instructions, a construction machine can determine the status of the work using various sensors provided in advance, and complete the work without human intervention. This system is being verified on actual machines. The development for commercial application is being implemented in a 3 year plan from FY 2012 with assistance from the Ministry of Land, Infrastructure, Transport and Tourism.

Measures for Conservation of Water Quality and Energy Efficiency

Preserving water bodies in the city

A system has been developed for conservation of water quality taking biodiversity into consideration, to enable waterside areas such as ponds, etc., to be habitats for wildlife in cities. By effectively using an absorbent made from natural material, the extreme growth of algae by nutrient enrichment is suppressed, and the ecosystem can be conserved and good views can be created.
(A joint development with Nisshoku Corporation)

Aquatope Concept Diagram

Aquatope Concept Diagram

“Energy Saving Diagnosis Solution” that has Achieved Building Energy Efficiency

The company's engineers with expert knowledge implemented an energy efficiency diagnosis for identifying issues in the present status of a building, with a view to improving the energy efficiency of an existing building. Based on the diagnosis results, we propose energy efficient modifications with excellent environmental efficiency, functionality and economics.

'Energy Saving Diagnosis Solution' that has Achieved Building Energy Efficiency

Seismic Countermeasures

“Rack Vibration Control Unit” to Speed up Recovery of an Automatic Warehouse after an Earthquake

This easy to install device has been developed and applied as an earthquake countermeasure for newly built or in-service multi-level automatic warehouses. By installing the unit it is possible to prevent stored goods from falling in an earthquake of seismic intensity “6 weak” (japanese scale) and long term stoppage of operation.

Rack Vibration Control Unit

Rack Vibration Control Unit

Spherical Panorama Image System “T-Siteview” and Seismic Strengthening of Ceilings “T-Ceiling”

A spherical panorama image system has been developed that enables measurement of the status of services equipment or ceiling members, etc., within the ceiling space of a building in a short period of time and a 3-dimensional view to be produced, and it is being used for surveying and recording ceiling spaces. It enables the status within ceiling spaces and measures to be taken to be determined with a greater feeling of being present, which in the past was difficult with static images. Also, the system is being used for planning and implementing countermeasures to prevent collapse by seismic strengthening of ceilings, based on incidents in which ceiling members have dropped out and collapsed in the Great East Japan Earthquake.

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