Contents

Structure of this Magazine:
This magazine presents Takenaka Corporation's New Tokyo Main Office Building from a variety of different perspectives. We have strived to provide an easy-to-understand description of the three key themes of the design of the New Tokyo Main Office Building: the creation of a highly efficient and high-quality workplace; the reduction of environmental load; and the pursuit of cost-performance. Chapters 1 to 6 present the features incorporated into the New Tokyo Main Office Building as sustainable architecture, in line with the framework of Sustainable Works, which is a concept of Takenaka Corporation, and Chapters 7 and 8 deal with the workplace and IT respectively. Chapter 9 presents architectural details.

Contents

prefatory discussion: The Potential of Architecture
in a Sustainable Society
Shuzo MurakamiNorikazu Hattori

leadoff article: New Office Type Concept Junji Suga

article: What we ask in Sustainable Architecture Akira Matsukuma

The Record of Environmentally-Responsible, and Sustainable
Architectural Works by Takenaka Corporation

1: Indoor Environment
article: The Requirements of an Indoor Environment Yoshiki Mizuno

The exterior skin which Breathes
A Large Volume Space and Ceiling System
Pathways for Light and Wind
Light Environment
Flow of Air / Air Quality Environment
Thermal EnvironmentAcoustic Environment

2: Life CycleQuality of Service
article: Service and Life Cycle Performance Required by Offices
Hiroki Ito

Flexibility
A Large Space
Creation of Communications
Adaptability of Facilities and Module
Safety Performance in the event of Fire
Safety for Long Life Use
Outer Brace Structure
Foundation Structure
Prevention of Disaster
Life Cycle Assessment and Maintenance

3: Landscape
article: Landscape / Creating a Sustainable Environment
Yoshinori Onishi

Consideration for the Local Environment
Site Planning which takes account of the Surrounding Environment
Townscape of Surrounding Environment
Details Linking Interior and Exterior

4: Energy
article: Energy use in the age of Sustainability
Yasuhiro Shiratori

Envelope Design
Low Temperature and Large Temperature Gap Heat
Source and Delivery System
Use of Natural Energy
Solar Heat-Collection Ducts
Mobility Plan

5: Resources and Materials
article: Sustainable Materials and Construction
Yasuyuki Shibata

Resources Saving
Grinding Finish PCa Panel
Corrugated Cardboard Duct

6: EmissionOff-site Environment
article: Emission control and amalgamation with the local
environment Hiroaki Takai

Off-Site EnvironmentSuppressing Heat Island Effect
Concurrent Design-Construction System
Environmental Load Reduction during Construction

7: Workplace
article: Workplace for Succession and Growth
Hirotsugu Yamaguchi

Programming:A Comprehensive Approach
Goals Setting
Organizing Demands and Stacking Planning
Planning Concept
Workstations
Communication Space
Support Space
Pre and Post Occupancy Evaluation
Workplace Productivity

8: IT Environment
article: Architecture and IT Masahide Kouno

IT Planning Process
IT that will realize the Work Style

9: Details and Appendix
article: Expression and Detail Masaaki Hiroshima

Building name board and Gateway
Piloti and Vestibule

()
Entrance Hall (Reception Counter and Atrium Handrails)
Light Ceiling and Light Floor
Reception Rooms and Reception Corridors
Executive Corridor
Security Gate
Tea room
Cafeteria and Kitchen
Cafeteria / Hall
Open Staircase
Sky light
Lavatory
Break Area
AB AB Hall
Sign Planning
Lighting Planning

Art Planning

One-Package Service
/
Environmental Evaluation Method /
Takenaka Evaluation Tool
CASBEE-
Environment Performance Assessment Sheet, CASBEE
Drawings
Date Sheet
Profile