Project Frontline
Building "ES CON FIELD HOKKAIDO," a Baseball Park with a Giant Openable Roof
Kitahiroshima City, located in ドラクエ オンライン カジノ center of ドラクエ オンライン カジノ Ishikari Plain between ドラクエ オンライン カジノ Sapporo Station and ドラクエ オンライン カジノ New Chitose Airport Station on Japan Railway Hokkaido Chitose Line, is a town among gently sloping hills with a harmonious blend of abundant nature and urban functions. It is an area where temperatures drop to -20℃ in winter, and construction is underway to build ドラクエ オンライン カジノ new baseball park for ドラクエ オンライン カジノ Nippon Professional Baseball Team, HOKKAIDO NIPPONHAM FIGHTERS.
Constructing a new baseball parkthat will serve as ドラクエ オンライン カジノ center of ドラクエ オンライン カジノ city
SAPPORO DOME, serving as ドラクエ オンライン カジノ current base for ドラクエ オンライン カジノ HOKKAIDO NIPPONHAM FIGHTERS, is a facility owned by City of Sapporo and thus cannot be directly managed and operated by ドラクエ オンライン カジノ baseball team. ドラクエ オンライン カジノ baseball team therefore set out to build their own new baseball park through a public and private sector collaboration with Kitahiroshima City, by promoting urban development with ドラクエ オンライン カジノ new park at its core.
ドラクエ オンライン カジノ construction site for ドラクエ オンライン カジノ new baseball park, ES CON FIELD HOKKAIDO, is a sloped area with a 30 m elevation covering approximately 320,000 m², and was formerly planned as ドラクエ オンライン カジノ site of Kitahiroshima Sports Park. It will be a park with capacity of 35,000 people when it opens for ドラクエ オンライン カジノ 2023 season. ドラクエ オンライン カジノ baseball park is designed with various features, including seats close to ドラクエ オンライン カジノ field offering a great sense of presence, an openable roof, natural turf field and glass walls as high as 70 m providing natural lighting, and a 360-degree circuit-style concourse.
"Hokkaido Ballpark F Village," which will hold ドラクエ オンライン カジノ new baseball park, is scheduled to house a hotel and commercial facilities in ドラクエ オンライン カジノ future, becoming a town appealing in areas other than spectator sports. Construction on-site has passed ドラクエ オンライン カジノ midway mark for full delivery, with ドラクエ オンライン カジノ fixed roof almost completed, and assembly of ドラクエ オンライン カジノ retractable roof having been started.
Supporting a giant roof weighing 10,000 tons
Construction planning was established one year before start of construction
While this construction project had fixed start and end dates and full delivery of 32 months, detailed design drawings were not fixed when ドラクエ オンライン カジノ construction order was placed. Therefore, progress of ドラクエ オンライン カジノ roof construction was ドラクエ オンライン カジノ greatest point of concern in meeting ドラクエ オンライン カジノ established delivery date.
Taking ドラクエ オンライン カジノ positioning of four individuals including Project Director Takenaka as ドラクエ オンライン カジノ starting members one year before start of construction as an opportunity, frontloading that would allow opinions held by ドラクエ オンライン カジノ construction side to be reflected from ドラクエ オンライン カジノ outset with regard to structure and architectural design work was implemented. Both ドラクエ オンライン カジノ design and construction sides exchanged their opinions and ideas with regard to construction planning to meet ドラクエ オンライン カジノ tight construction delivery. As a result, a plan was formulated that would divide ドラクエ オンライン カジノ baseball park into ドラクエ オンライン カジノ North Zone for ドラクエ オンライン カジノ home base side and ドラクエ オンライン カジノ South Zone for ドラクエ オンライン カジノ center field side, and move ahead with construction for ドラクエ オンライン カジノ general area where ドラクエ オンライン カジノ fixed roof would be built, from ドラクエ オンライン カジノ North Zone toward ドラクエ オンライン カジノ South Zone.
Girder frame structure to support and slide ドラクエ オンライン カジノ roof
ドラクエ オンライン カジノ large roof is sloped and gable-shaped, with strong force spreading ドラクエ オンライン カジノ roof outward to support heavy snowfall during ドラクエ オンライン カジノ winter. It is ドラクエ オンライン カジノ girder frames made of rebar concrete that withstand this force. A giant framework structure with an unprecedented 2.5m x 4m column cross section and 4 m x 3 m beam cross section, equivalent to civil engineering structures such as roads and bridge piers, became necessary for ドラクエ オンライン カジノ architecture.
Ideas were also sought from sources such highway construction methods. However, this construction would not be completed in time if such methods were to be implemented. Thus it was decided that ドラクエ オンライン カジノ framework of ドラクエ オンライン カジノ girder structures would be made in a factory in advance by precasting (PCa). Since ドラクエ オンライン カジノ framework had a large cross section, however, creating it with PCa as one structure would result in several hundred tons in weight, and heavy lifting equipment used at construction sites would not be able to lift it. It was also necessary to keep ドラクエ オンライン カジノ structure at a weight that could be transported, putting into consideration weight limits placed upon public roads that would be used to transport ドラクエ オンライン カジノ manufactured structures from ドラクエ オンライン カジノ factory to ドラクエ オンライン カジノ site.
Therefore, a method where only ドラクエ オンライン カジノ columns and beams would be manufactured with PCa, and ドラクエ オンライン カジノ parts joined on-site was considered. ドラクエ オンライン カジノ "outer shell PC", which takes columns made with PCa for ドラクエ オンライン カジノ outer part only, and "knuckle PCa" beams, in which several parts made with PCa for ドラクエ オンライン カジノ bottom layer only are layered together, with ドラクエ オンライン カジノ upper portion being joined at ドラクエ オンライン カジノ construction site, were developed for this construction.
ドラクエ オンライン カジノ issue regarding weight was resolved by layering factory-manufactured outer shell PCa on-site, and filling them with concrete. Inner and upper portions of ドラクエ オンライン カジノ girder structure framework were filled with Clean-Crete, a low-carbon concrete developed by オンラインカジノ.
Further, high-precision construction was realized utilizing a sliding system frame for ドラクエ オンライン カジノ complex-shaped structure of ドラクエ オンライン カジノ framework for ドラクエ オンライン カジノ retractable roof, and enhanced safety and productivity were successfully achieved.
Enhancement of safety and productivity for ドラクエ オンライン カジノ roof construction
ドラクエ オンライン カジノ new baseball park's giant roof consisting of ドラクエ オンライン カジノ gable-shaped fixed roof and retractable roof has two major features. One is that since there are a large number of seats on ドラクエ オンライン カジノ right side, ドラクエ オンライン カジノ slope is 20 degrees on ドラクエ オンライン カジノ left side and 17 degrees on ドラクエ オンライン カジノ right side, making ドラクエ オンライン カジノ roof asymmetrical. ドラクエ オンライン カジノ other is that ドラクエ オンライン カジノ roof is designed to be waterproof to keep ドラクエ オンライン カジノ snow piled up on ドラクエ オンライン カジノ roof in ドラクエ オンライン カジノ winter from falling off.
Various ideas were put into place, especially with ドラクエ オンライン カジノ temporary design plans, to realize these features. If ドラクエ オンライン カジノ fixed roof were to be constructed with a standard bent method overall, temporary support columns (hereafter, "bents") would be positioned on ドラクエ オンライン カジノ field and necessary steel beams for building ドラクエ オンライン カジノ roof would be assembled on top.
However, building ドラクエ オンライン カジノ stand will not be possible directly underneath construction of ドラクエ オンライン カジノ fixed roof, and as ドラクエ オンライン カジノ space for moving ドラクエ オンライン カジノ boom of heavy lifting equipment required for construction underneath will become limited after ドラクエ オンライン カジノ roof is completed, work efficiency will decrease.
Therefore, a plan was proposed for ドラクエ オンライン カジノ construction of ドラクエ オンライン カジノ fixed roof to be ドラクエ オンライン カジノ same sliding type as ドラクエ オンライン カジノ retractable roof, and for bents to be placed on ドラクエ オンライン カジノ outer framework of ドラクエ オンライン カジノ stand that can be shared with construction of ドラクエ オンライン カジノ retractable roof. Construction of ドラクエ オンライン カジノ fixed roof steel beams and framework for ドラクエ オンライン カジノ stand directly underneath took place at ドラクエ オンライン カジノ same time.
ドラクエ オンライン カジノ roof is assembled on ドラクエ オンライン カジノ ground into units made with waterproof materials and ceiling sound-absorbing panels, and only waterproofing between ドラクエ オンライン カジノ units is handled at roof height. This has led to successfully enhancing safety and work efficiency as well as cost reductions.
Deputy Project Director Kuroda said, "Proposal of ドラクエ オンライン カジノ construction method was proactively made by ドラクエ オンライン カジノ construction side. Cooperating with relevant divisions, various methods were taken so that delivery was not delayed, and construction is currently also progressing smoothly."
Site Scan, effective in construction management
Using images captured by drone, ドラクエ オンライン カジノ Site Scan for ArcGIS service automatically creates point cloud data in a cloud allowing ドラクエ オンライン カジノ data to be shared. As ドラクエ オンライン カジノ construction site area is large, ドラクエ オンライン カジノ system can be used to monitor conditions on-site that change daily. It is able to confirm ドラクエ オンライン カジノ site three dimensionally, and data is shared among employees to confirm on-site conditions, undergo simple measuring, and calculate cut and fill soil volumes. It is effective in construction management. And this has been utilized for work plan briefings of stock yards and cranes as well as during construction site tours.
Taking on construction during severe winter season
Handling accumulated snow
Construction is sometimes halted in Hokkaido during ドラクエ オンライン カジノ severe winter season; however, this construction is on a tight delivery schedule and ドラクエ オンライン カジノ work cannot be halted twice during construction of ドラクエ オンライン カジノ park due to harsh winters. Therefore, measures must be put in place that can meet ドラクエ オンライン カジノ unique needs of vast construction sites in Hokkaido.
With ドラクエ オンライン カジノ site area so extensive, most workers commute by car. Removal of massive snow in ドラクエ オンライン カジノ winter and heating on-site are important for ドラクエ オンライン カジノ construction location, including parking areas. Two large-scale wheeled excavators and five small excavators are positioned on-site to work on snow removal.
If ドラクエ オンライン カジノ weather forecast is for snow, a dedicated snow plow team is deployed overnight to work on snow plowing from midnight to 6:00 a.m., to prepare ドラクエ オンライン カジノ site for construction to smoothly begin in ドラクエ オンライン カジノ morning. Even after that, snow must be plowed around one's area for roughly 30 minutes after ドラクエ オンライン カジノ morning staff meeting, and snow must constantly be handled.
Ensuring safety and quality
Temperatures can drop to -20℃ during winters in Kitahiroshima City. Under such circumstances, sufficient consideration must be put into ensuring quality of buildings not to mention ドラクエ オンライン カジノ safety and wellness management of employees and workers.
In concrete pouring during ドラクエ オンライン カジノ severe winter season, concrete freezes during curing if left in ドラクエ オンライン カジノ cold, which affects ドラクエ オンライン カジノ quality. Temporary walls and roofs are therefore set up to cover ドラクエ オンライン カジノ working area before pouring begins, and stoves are lit each time work begins so as to ensure quality. Snowfall that has accumulated melts into water as ドラクエ オンライン カジノ temperature rises during ドラクエ オンライン カジノ day, but then turns to ice. As this process gets repeated, ice blocks become as thick as roughly 20 cm, and they cannot be easily removed, causing disruptions in work. As it gets slippery and dangerous and issues arise surrounding ドラクエ オンライン カジノ safety of employees and workers, workers use electric pick hammers to break up ドラクエ オンライン カジノ ice one by one.
Deputy Project Director Shimada said, "Continuing construction work in ドラクエ オンライン カジノ winter is harder both physically and mentally than one might imagine, but we still have to look ahead and keep working in those conditions." Taking effort to handle ドラクエ オンライン カジノ snow and ice before starting work, workers assemble ドラクエ オンライン カジノ rebar and pour concrete. Project Director Takenaka said, "ドラクエ オンライン カジノ work during winter in Hokkaido is done with ドラクエ オンライン カジノ help of know-how from ドラクエ オンライン カジノ local community, striving to maintain ドラクエ オンライン カジノ same level of quality in construction as in areas without a severe winter season."
ドラクエ オンライン カジノ site is scheduled for construction going forward of ドラクエ オンライン カジノ retractable roof together with ドラクエ オンライン カジノ glass walls on ドラクエ オンライン カジノ south side, and ドラクエ オンライン カジノ exterior and field as well. Construction work is moving along in preparation for ドラクエ オンライン カジノ 2023 season opening in spring.
(Reporting in September 2021)
Construction Overview
| Project Name | Construction plan for Hokkaido Ballpark (provisional name) |
|---|---|
| Location | Kitahiroshima City, Hokkaido |
| Client | Fighters Sports & Entertainment Co., Ltd. |
| CMr | Yamashita PMC |
| Design | オンラインカジノ and HKS |
| Overview | RC construction, steel construction, steel RC construction, B2, 6F, total 120,500 m² |
| Delivery | May 2020 - December 2022 |
| Construction | オンラインカジノ and IWATA CHIZAKI INC. |