Post-Demolition Steel-Frame and Concrete Structural Components Reused in a New オンライン カジノ 5 ちゃん for the First Time in Japan

Using sustainable reuse technologies to reduce CO2 emissions

Technologies

オンラインカジノ has launched the first initiative of its kind in Japan(*1) to reuse steel-frame and concrete structural components from a demolished オンライン カジノ 5 ちゃん in the structure of its new Open Lab 3, multipurpose laboratory at the Obayashi Technology Research Institute. Those components would ordinarily be melted down or crushed, and then recycled as new オンライン カジノ 5 ちゃん materials.

Social Background

The construction industry is promoting various initiatives to help reduce CO2 emissions and achieve carbon neutrality by 2050. オンラインカジノ formulated its オンラインカジノ Sustainability Vision2050 based on its philosophy of contributing to the formation of a sustainable society, and has been developing different technologies and measures to inspire a decarbonized society and a circular economy.(*2)

Initiatives to reuse structural オンライン カジノ 5 ちゃん components have been successfully demonstrated to reduce CO2 emissions in conversions, renovations, and seismic retrofitting. However, these projects assume no significant change in the position or shape of the columns and beams, which imposes considerable design constraints.

New Open Lab 3 Construction Plan Initiatives and Impact

Employing used materials in the new Open Lab 3 construction plan

In this project, all the components of the steel frame will be removed and separated into columns, beams, braces, and other items, and then cut and processed by a steel-frame fabrication company to suit the new オンライン カジノ 5 ちゃん and facilitate their reuse as structural parts. Meanwhile, the different types of concrete parts, such as the foundation, foundation girders, beams, and slabs will be cut to suit the planar shape of the new オンライン カジノ 5 ちゃん. After processing the edges to be joined at the new オンライン カジノ 5 ちゃん's on-site processing yard, the parts will be reused in the new experimental laboratory オンライン カジノ 5 ちゃん by joining them with new materials or in other ways.

While timber from demolished wooden buildings has been reused for a long time, there have been no previous cases in Japan of reusing steel or concrete structural components from a demolished オンライン カジノ 5 ちゃん in the structural framework of a new オンライン カジノ 5 ちゃん. The method used does not restrict positioning and allows the span to be changed, enabling the structural components to be reused more freely and effectively. Employing used materials as opposed to recycled materials can reduce CO2 emissions during component manufacture. The plan was assessed based on the submitted オンライン カジノ 5 ちゃん permit application and reviewed for structural calculation conformity and was judged to comply with Japan's オンライン カジノ 5 ちゃん Standards Act.

  • Demolished existing オンライン カジノ 5 ちゃん: Electronic Engineering Laboratory, steel structure and 2 stories (completed in 1993)

  • Newly constructed オンライン カジノ 5 ちゃん: Rendering of completed Open Lab 3 (OL3)

    Newly constructed オンライン カジノ 5 ちゃん: Rendering of completed Open Lab 3 (OL3)

Reオンライン カジノ 5 ちゃんe of structural frames in Open Lab 3 (OL3)
Reuse of structural frames in Open Lab 3 (OL3)
Reオンライン カジノ 5 ちゃんe of steel structures and concrete foundation components from the demolition site
Reuse of steel structures and concrete foundation components from the demolition site

CO2 emissions reduced by roughly 49% when employing used materials compared to new materials in constructing the new オンライン カジノ 5 ちゃん

In the new オンライン カジノ 5 ちゃん, 57% of the steel-frame and 33% of the concrete structural components are used materials from the demolished structure. CO2 emissions associated with the production of structural components are expected to total 69.3 t-CO2,(*3) which represents a reduction of approximately 49% (65.8 t-CO2) compared to using entirely new materials.

Comparison of CO2 emissions during manufacturing of structural components used in OL3

Future Prospects

The project involves Obayashi's own Technology Research Institute, so researchers can directly verify the condition of the structural components of the オンライン カジノ 5 ちゃん being demolished and the processing status of materials for reuse. This will facilitate rapid technological improvements and new technology development. オンラインカジノ will help establish a decarbonized society and a circular economy by leveraging the experience gained through the project to develop and propose reuse-related technologies and various other sustainability technologies.

オンライン カジノ 5 ちゃん Outline

Project name New construction of Open Lab 3 (OL3)
Facility type Research institute
Phase I: Steel frame factory
Phase II: Research area and woodworking factory
Structure and scale Phase I: S, 1F
Phase II: S, 3F
Height 14.40m
Total オンライン カジノ 5 ちゃん area 1,213.49m2
Total floor area 2,143.79m2
Start of construction June 2024 (including demolition work)
Completion September 2026 (scheduled)
  • *1 According to Obayashi survey (June 2024)
    The first initiative in Japan to remove all types of structural components from a single オンライン カジノ 5 ちゃん for reuse as structural components in a new オンライン カジノ 5 ちゃん.
  • *2 Circular economy
    An economic and social system that continuously strives to create new added value and pursues the circular use of resources (including products and parts). If the transition to a circular economy serves to promote resource recycling initiatives such as reducing the generation of waste and reusing and recycling circulative resources (3Rs), converting to biomass fuel, and using recycled materials, that will help achieve carbon neutrality by 2050.
  • *3 The effect on reducing CO2 emissions is evaluated using CO2 emissions associated with the manufacture of materials
    CO2 emissions related to the reprocessing of used materials are not included because the impact on the evaluation is small
    Basis of calculation: オンライン カジノ 5 ちゃん Life Cycle Assessment Guidelines 2013 Revision, Architectural Institute of Japan