The 9th National Resilience Design Award NaRda

Results Announcement

After careful consideration by juries, Grand Prix, 2nd Prize, and 3 Honorable Judge Award have been selected. On November 18th 2022, the Awards Ceremony was held at Intercity Hall.

    ▲Awards Ceremony
    (Nov. 18th 2022 at Shinagawa Intercity Hall)

  • ▲Award-winning works introduction

  • Grand Prix (Highest Award)

    KRAY Inc.

    Level 2 Earthquake Dynamic Nonlinear Analysis of Existing Overpass with Composite Piers
    -Verify a bridge constructed in the early Showa period under the latest seismic loads-

    • Program Used: Engineer's Studio®

      This bridge is a 4-span continuous steel plate girder overpass constructed in the early Showa period. The central three piers are of RC structures in the lower part, and the upper part is a composite structure with steel truss legs consisting of seven lattice columns connected with trusses to form a single plate. It has passed over 80 years since its construction, and a dynamic nonlinear analysis was conducted at the level 2 earthquake to verify the seismic performance of the bridge under the latest seismic loading. The superstructure and steel truss legs were modeled as elastic beam elements, and the substructure as a nonlinear beam element (M-φ element), with plastic hinge springs at the column bases. As a result of the verification, the shear capacity of the RC members and the bending and compressive stress of the steel truss legs exceeded the allowable values, which were confirmed as basic data for future reinforcement studies.

  • 2nd Prize (Excellence Award)

    Hagihara Giken Co., Ltd.

    Preliminary Study of Thermal Cracking Before Construction of New Bridge Abutments
    -Analysis and countermeasure based on the crack control guideline for mass concrete-
    Program Used: JCMAC3

    As for the construction of the abutment of a simple girder bridge, the abutment wall was mass concrete of 1.95 m thick according to the design. Therefore, cracking due to thermal stress was expected to occur when the in-situ concrete was placed, and the thermal stress analysis of the mass concrete was conducted with JCMAC3 for the initial construction plan. In addition, cracking occurred as expected in the initial plan, simulations were conducted with different curing periods and pouring temperatures.
  • Honorable Judge Award (Prof. Hiromichi Yoshikawa)
    Structural Performance Evaluaton Award

    Chikyu Giken Consultant

    Re-analysis of Existing Water Distribution Basins and Verification of Reinforced Seismic Performance
    -Reinforcement plan to take measures against NG for normal case while keeping water distribution functionality-
    Program Used: Engineer's Studio®, Dynamic effective stress analysis for ground UWLC

    Seismic performance verification was conducted for an existing water distribution reservoir. The analysis for the existing conditions found that there was a problem with the design load concept at the time of construction. After fixing it and performing an analysis again, the result became so strict that it was NG even in normal time. In addition, severe restrictions were imposed on the reinforcement, for example, the reinforcement should have not interfered with the function of the water distribution reservoir, and there are not so many vacant sites for construction due to buildings around the reservoir. However, after considering several reinforcement methods and performing FEM analysis, a reinforcement plan that satisfied the constraints and the seismic performance was determined.
  • Honorable Judge Award (Prof. Masaru Morita)
    Water Supply Resilience Award

    Wakasuzu Consultants Co., Ltd.

    Liquefaction Analysis of Water Pipes
    -Ground deformation due to liquefaction and its impact on pipelines-
    Program Used: Dynamic effective stress analysis for ground UWLC

    A seismic response analysis was performed to check the response of an agricultural canal pipe in liquefied ground during an earthquake. Three cross sections were used as the analytical model. The cases of normal backfilling, curing the surrounding area with a concrete box, and considering external forces separately because it corresponds to a bending section were considered. The results of the study showed that liquefaction would be limited to near the surface layer and that no significant deformation would occur. Data processing such as wavelength calculation and thinning was performed on the response waveforms.
  • Honorable Judge Award (Prof. Akihiko Wakai)
    Multi-stage Process Analysis Award

    SK Engineering

    Impact Study of Propulsion Pipe Shaft Neighboring Work
    -Impact analysis of shaft construction near railroad tracks-
    Program Used: Geo Engineer's Studio

    A starting shaft was planned to place the propulsion pipe crossing directly under the existing railroad. The excavation width was 8.0 m, the excavation depth was 7.5 m, and the length was 5.6 m. Steel sheet piles type IV were used for earth retaining, and a two-stage cut beam was planned in the length direction and two sets of H400 and H500 wales in the excavation width direction. The distance from the center of excavation to the track surface was 20.46 m, and there were concerns about the impact during shaft excavation. The model was designed with ground improvement around the excavation area and rigid temporary structures with retaining and wale, so the stiffness of the beam members was converted to a length of 1 m and a 2-dimensional FEM analysis was performed.
  • Nomination Award

    Knowledge Fusion Co., Ltd.

    Dynamic Analysis of Bridges Using Earthquake Motion Predicted by RNN
    -Application of AI technology in the field of disaster prevention-
    Program Used: Engineer's Studio®

    In Japan, it is strongly pointed out that large-scale earthquakes such as the Nankai Trough earthquake and an earthquake directly under the Tokyo metropolitan area will occur soon. In order to protect infrastructure from unprecedented major earthquakes, it is important to predict future seismic motions with greater accuracy than ever before. In recent years, AI technology has made remarkable progress, and this work attempted to predict future earthquake ground motions using RNN, which can handle time-series data. As a result, it was confirmed that even bridges that were considered to satisfy the seismic performance under the conventional design earthquake motion did not satisfy one under the earthquake motion predicted by RNN. This work shows an example of the application of AI technology in the field of disaster prevention.
  • Nomination Award

    Yabu Doken Co., Ltd.

    Crack Examination by Temperature Stress Analysis of Caisson Foundation and Countermeasures
    -Example of cracking prevention by pipe cooling-
    Program Used: JCMAC3

    The subject structure was a new pier caisson foundation to be constructed in a river. The planned cast-in-place concrete for the caisson foundation was mass concrete with a wall thickness of 1.5 m to 1.8 m. Cracking due to thermal stress was a concern. Therefore, it was necessary to identify the locations where cracks would occur and take appropriate measures. This analysis using JCMAC3 is a case study of the sequential elastic temperature stress analysis without countermeasures, and the same analysis considering pipe cooling as a countermeasure to prevent cracks.
  • Nomination Award

    Ube Industries Consultant Co.,Ltd.

    Seismic Performance Verification of Arch Channel Bridge
    -Analysis of plain concrete bridge using frame element and flat plate element-

    Program Used: Engineer's Studio®

    Arch aqueduct bridges, such as the Tsujunkyo Bridge, were originally constructed as agricultural waterways, but today they are of great scenic and civil engineering heritage value. The bridge is an unreinforced arch aqueduct, and its main structure consists of a substructure (columns), arch and channel sections. Between the arch and channel sections is filled with concrete. Although it is possible to model the padded concrete section as a rigid body, the entire bridge was modeled using frame elements and flat plate elements to approximate the actual structure as closely as possible. And static and dynamic analyses were conducted to verify the seismic performance against level 2 earthquake motion.
  • Nomination Award

    FUJI Consultants Co.,Ltd.

    Seismic Performance Verification of a Simple Steel Truss Bridge Built in the 1950s
    -The wisdom of our forefathers that can be realized when a major earthquake occurs-
    Program Used: Engineer's Studio®

    This bridge is a simple steel truss deck bridge. Because it is an old bridge, completed in 1959, and has a so-called "top-heavy" structure in which the heavy floor slab is above the truss structure, it was anticipated that many points would exceed the yield point at an event of a major earthquake, requiring a great deal of reinforcement. However, the "wisdom of our ancestors" has kept the damage and repair to a minimum. In this work, we will consider the "wisdom of our ancestors" based on the results of the seismic performance verification and validation analysis of the Level 2 earthquake by dynamic analysis.
  • Nomination Award

    Kitacon Corporation

    Seismic Performance Verification of River Bridges with Box Structures
    -Static nonlinear analysis of box and piles as a whole-
    Program Used: Engineer's Studio®

    This project was designed as a triple box culvert structure to replace a river bridge. The former bridge was a bridge structure, but it was difficult to secure a margin height under the girder or to secure a construction yard and acquire land due to the existence of an intersection, etc. That was why the box culvert structure was adopted for the new bridge. Because of the conditions such as a pile foundation structure in a triple box culvert, it would not be within the application of "conventional type box culvert" covered by the guidelines of culvert work. Therefore, the seismic design was conducted using static nonlinear analysis based on a framework in which the box culvert and piles are integrated, referring to the specifications for highway bridges and calculation examples for sluice gates and weirs.
  • Nomination Award

    Sanei Sekkei

    Impact Study of Sewer Facility Neighboring Work
    -Impact mitigation by excavation incorporating the main body construction-
    Program Used: Geo Engineer's Studio

    The site was located at the mouth of an estuary, where a soft layer had accumulated approximately 30 m below the ground surface. The existing railroad ran nearby, and a 6 m deep and 27.2 m wide earth retaining excavation from a point 28.5 m from the track surface was planned. FEM analysis showed that even if steel sheet piles Type III were driven up to 21.5 m, the open excavation without cut beams or intermediate piles would have a significant impact on the track surface. Therefore, after various studies, including steel pipe sheet piles as rigid earth retaining works and ground improvement, it was concluded that it would be possible to keep the displacement within the required amount by using the main structure as a counterweight by simultaneously constructing the partial excavation and the main body.
Nomination work screening

  • Meeting for selecting nomination works at
    Seminar Room in FORUM8 Head Office

  • Nomination work screening

  • Juries (From the left) Mr. Hiromichi Yoshikawa (Jury Chair), Mr. Masaru Morita, Mr. Akihiko Wakai

Overview

With the growing desire for society to build lasting structures that can withstand the tests of disasters, NaRDA was established in 2014 to recognize those who are taking action. Focusing on many different disciplines from civil engineering, to hydroengineering, and disaster prevention. These contributions will be awarded and will become a key source of information and technical study for the future.

Submission Requirements

Content that directly or indirectly contributes to the overall improvement to national resilience, similar but not limited to disaster prevention and mitigation, rational design methods, BCP, and risk management.

Application / Schedule
Submission Conditions

Mandatory Requirements
1.Title and subtitle of work: 20-40 characters
2.Outline of work: 150-200 characters
3.Poster：A1A1 landscape (Purpose/contents are simply described)
>>Poster Template (Word、111KB)
4.Report (Purpose, methods, results, limitations, etc.): 2-10 pages
>>Report Template (Word, 58KB)
5.Input Data (Result File)
6. List of Products Used

Optional
1. Animation, Videos
2. Presentation slides

Languages
English or Japanese only

Destination of Submission

Please tell your contact person of FORUM8 staff and send it to him/her.

Schedule
  • Mon. Oct. 17th, 2022
  • Deadline for Application
  • Tue. Oct. 25th, 2022
  • Nomination Work Screening

  • Fri. Nov. 18th, 2022

  • Announcement and Awards Ceremony
    Venue: Shinagawa Intercity Hall
Copyright of Submitted Work

The copyright of the VR data of the winning work belongs to the applicant.
Although the submitted data will not be distributed, FORUM8 will edit and process output images, videos, etc. for the data, works and deliverables produced by the author, and will make external presentations, research presentations, sales activities, As a public relations activity, you have a secondary license right such as publication/introduction on media such as HP, public relations magazines, books, magazines and newspapers.

Inquiries for Application

TEL：03-6894-1888　FAX：03-6894-3888
E-mail：forum8@forum8.co.jp

Awards / Prizes

  • Grand Prix(The highest award)

    raytrek high-performance laptop, Book gift cards (JPY50,000), Trophy, Certificate

  • 2nd Prize (Excellence Award)

    GALLERIA laptop, Book gift cards (JPY20,000), Certificate

  • Honorable Judge Award

    Shade3D/Game programming PC, Book gift cards (JPY10,000), Certificate

  • Nomination Award

    Book gift cards (JPY5,000), Plaque

Juries

  • Chair

    Prof. Hiromichi Yoshikawa

    Honorary Prof., Tokyo City University

    Waseda University's Faculty of Science and Engineering Graduate with a specialization in Construction. Doctorate of construction engineering. Specializes in seismic design, earthquake risk, and reinforced concrete. Recipient of JSCE awards, Yoshida Award, etc., and the author of 7 books.

  • Prof. Masaru Morita

    Honorary Prof., Shibaura Institute of Tech.

    Professor of the Shibaura Institute of Technology's department of Civil Engineering, Faculty of Engineering. Specializes in urban hydrology, groundwater hydrology, and flood risk management. Author of "Groundwater Talks - The Crisis of Invisible Resources" (Iwanami Shinsho).

  • Prof. Akihiko Wakai

    Professor, Gunma Univ. Graduate School of Science and Eng.

    Professor of Gunma University's Graduate School of Environmental Physiology and Engineering. Specializes in disaster prevention, earth and foundationional disasters, etc. Research on computer-based phenomenon prediction, mechanisms for extreme weather/major earthquakes, and disaster mitigation measures.

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Past Award Winners

Our level of competition is increasing every year as we see projects and works from various fields in structural analysis, geotechnical engineering, hydraulic engineering, disaster prevention and risk assessment.

  • 8th Grand Prix

    NiX Co., Ltd.

    Seismic Study of Existing Steel Pipe Arch Water Pipe Bridge
    Program Used: Engineer's Studio®
    This work is a seismic survey of a 59-meter-long Langer stiffening type water pipe bridge in accordance with the guidelines for seismic construction methods for waterworks facilities. In the basic design of the seismic reinforcement, the seismic resistance of the bridge was verified by nonlinear dynamic analysis, and the reinforcement methods were compared for the areas where the bearing capacity was insufficient. As a result of the comparative study, the thickening of the back side was applied for the movable side, and the carbon fiber winding and the thickening of footing for the fixed side. As for the temporary construction method, the clamping method was used after considering the river conditions such as the river inhibition ratio. In the seismic diagnosis survey, detailed investigations such as pipe thickness measurement, neutralization test, and compressive strength test were carried out, and a seismic resistance verification was carried out to propose the proper reinforcement method.
  • 8th 2nd Prize (Excellence Award)

    F-tech Inc.

    United Seismic Performance Verification of Civil Engineering Facility and Architectural Facility
    Program Used:Engineer's Studio®
    The seismic performance of large-scale drainage pump stations, which consist of a large underground water storage tank and a multi-story building facility above ground, has been verified separately for civil engineering facility and building facility. However, there comes a question that it is inconsistent to use different compliance standards, different analysis methods, and different evaluation indices for verification of those structures, even though the facility is structurally and functionally the same. Also, there is another question whether the actual behaviors during earthquakes and the process of damage generation have not been sufficiently reproduced, and whether the methods and scale of countermeasures have not been optimized. Here, this work proposes a method to verify the seismic performance of large-scale drainage pumping stations through dynamic analysis, by creating an analytical model integrating underground civil engineering facilities and above-ground building facilities, and applying actual seismic motion waveforms as external forces.
  • 8th Honorable Judge Award
    (Prof. Hiromichi Yoshikawa)
    Structural Performance Evaluation Award

    Knowledge Fusion Co., Ltd.

    Study on Bearing Capacity of RC Beam Members Using Nonlinear Structural Analysis Program
  • 8th Honorable Judge Award
    (Prof. Masaru Morita)
    Bridge Pier Reinforcement Award

    SANKYO ENGINEERING Co., Ltd.

    Level 2 Seismic Performance Verification for Pile-Bent Piers
  • 8th Honorable Judge Award
    (Prof. Akihiko Wakai)
    Urban Amenity Design Award

    SEED CONSULTANT,INC.

    3D Dynamic Nonlinear Analysis of a New 5-Span Continuous Steel Pedestrian Deck Bridge
  • 8th Nomination Award

    ORBIT Co.,LTD.

    Level 2 Seismic Study of π-Shaped Rigid-Frame Bridge with PC Diagonal Members
  • 8th Nomination Award

    FUJI Consultants Co.,Ltd.

    Single Column Dynamic Analysis by Modeling Pier Frame and Deep Foundation
  • 8th Nomination Award

    Kyushu Electric Power Company, Incorporated

    Response Seismic Method of Ground
Past Award Winners PickUp
Historical Works
Past Contest Award Ceremonies (8th National Resilience Award - November 2021)

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