Yokohama City Government Building Construction Times

We send about design, plan summary of new city hall and progress of construction, construction method to all of you once every three months as "Yokohama City Government Building Construction Times".

Last issue (PDF: 1,960KB)
(Apr. 2020)
~ At the end of January, the building was completed~
　Oh Completed Report
　　　Office (high-rise section)
　　　Meeting room and committee room (middle layer)
　　　Atrium (low-rise part)
　　　Citizen use facilities (low-rise building)
　　　Exhibit and Remains Exhibition
　　　Connection between Bashamichi Station and Sakuramirai Bridge　

No. 10 (PDF: 2,239KB)
(December 2019)
~ Appearance, close to completion! ～
　Oh Points of the plan
　　　Planning of exterior and parliamentary functions
　Oh On-site report
　　　Planting, exterior, low-rise part, and atrium
　Oh About historical remains excavated at the new city hall site

No. 9 (PDF: 5,673KB)
(September 2019)
~ The atrium, which is a atrium space with a height of about 20m, has appeared~
　Oh Plan for atrium
　Oh I know a little bit of architecture
　　　Method of construction of atrium
　Oh On-site report
　　　Construction status of administrative buildings, atrium, and parliamentary buildings
　Oh I received a power in August

No. 8 (PDF: 2,154KB)
(June 2019)
-All installation of the outer wall of the administrative building has been completed~
　Oh Points of the plan
　　　Plan for the high-rise floor of the Administration Building
　Oh I know a little bit of architecture
　　　Elevators that support middle-rise seismic isolation
　Oh On-site report
　　　Atrium steel frame construction, interior work of the administrative building, floor of the parliamentary hall, etc.
　Oh The upper building has been built

No. 7 (PDF: 2,006KB)
(February 2019)
-Exterior work has progressed and the overall picture of the building has begun to appear! ～
　Oh Points of the plan
　　　Use of BIM
　Oh Demolition of large tower cranes

　Oh On-site report
　　　Steel frame construction, exterior wall work, equipment plumbing work, foundation work, etc.
　Oh "Out Kannai OPEN!" Participation in

No. 6 (PDF: 5,511KB)
(December 2018)
~ The ground steel frame and exterior are steadily rising! ～
　Oh Points of the plan
　　　Environmental Technology (Fuel Cell)
　Oh I know a little bit of architecture!
　　　How do you build a steel frame straight?
　Oh On-site report
　　　Status of steel frame construction and fire-resistant coating
　Oh Interview with a temporary enclosure art creator
　Oh Implementation of Children's Adventure

No. 5 (PDF: 2,127KB)
(Aug. 2018)
~ The ground steel frame is steadily rising! ～
　Oh Points of the plan
　　　Environmental Technology
　　　・Air-conditioning system in offices
　　　・DHC (Regional Heating and Cooling)
　　　・Geothermal Air Conditioning
　Oh On-site report
　　　How do you go up the tower crane?
　　　Construction status at the site
　Oh I know a little bit!
　　　Symposium
　　　Introduction of temporary enclosure art

No. 4 (PDF: 2,715KB)
(Apr. 2018)
We are proceeding with ground construction and underground construction at the same time! ～
　Oh Points of the plan
　　　BCP measures
　　　・Highest Seismic Performance in Japan - Adoption of Hybrid Seismic Isolation
　Oh On-site report
　　　Ground steel frame construction and seismic isolation layer construction
　　　Underground excavation work, steel frame construction, and floor construction
　Oh I know a little bit!
　　　Supervisor design of the new city hall

No. 3 (PDF: 1,634KB)
(February 2018)
-To a new government building that plays a central role in crisis management that can deal with various crises-
　Oh Points of the plan
　　　BCP measures
　　　・Equipment-related measures
　　　・Introduction of Earthquake and Structural Monitoring System
　Oh On-site report
　　Flow of steel frame construction and first floor preceding floor construction
　Oh I know a little bit of architecture!
　　What is the capacity of the tower crane?

No. 2 (PDF: 3,388KB)
(November 2017)
~ We are working on pile construction that will form the foundation of the building~
　Oh Points of the plan
　　The concept of landscape formation
　　Exterior Exterior Planning
　Oh On-site report
　　Flow of construction of punch piles and structures
　Oh I know a little bit of architecture!
　　What is the difference?

No. 1 (PDF: 1,009KB)
(Aug. 2017)
Construction started with the aim of completion in 2020! ～
　Oh Points of the plan
　　Where is the new city hall planned?
　　What kind of building is the new city hall?
　Oh On-site report
　　A groundbreaking ceremony was held!
　Oh I know a little bit of architecture!
　　The construction period is shortened by the reverse hitting (Sakauchi) method!