The 41st engineering meritorious service award was announced in 2021 sponsored by the engineering association, and the obayashi group project was awarded in two categories.The engineering merit award is recommended and decided by companies and organizations in various fields such as generalenets, engineering, steel, and shipbuilding, and is given to groups and individuals who have contributed to the development of the engineering industry. this year, 14 group awards were selected.
International contribution division
KACHIPUR MEGNA GUMTI SHIMTI CONSTRUCTION AND EXISTING BRIDGE RENOVATION TEAM (
BOTTOM PLATE REBAR ASSEMBLY WORK IN THE STEEL PIPE YAITAI CYLINDER FOUNDATION THAT SUPPORTS BOTH OLD AND NEW BRIDGE LEGS. A TOTAL OF 3.75 MILLION LOCAL ENGINEERS PARTICIPATED IN THE PROJECT WERE TRANSFERRED TO TECHNOLOGY BY OJT.
Engineering promotion division
Short construction period replacement project team for aging floor plates on rapidly increasing highways (obayashi corporation)
In the concrete floor plate replacement work of the aging highway, we developed and applied 'Slim Fastener ' using ultra high strength fiber reinforced concrete (UFC: Ultra high stregth Fiber reinforced Concrete) as the filling material of the precast floor plate joint, and realizedshortening of the construction process and improvement of the quality of the joint.
By using Obayashi's development technology 'Slim Cleats', which demonstrates high strength without heat curing, UFC eliminatesthe need for additional reinforcement muscles in the joints and reduces the bonding width to 50% of the conventional method. A multi-shear key with a uneven shape is provided on the joint surface to strengthen adhesion between the precast floor plate and the intercumple material, preventing the joint surface from opening. increased durability of joints.
THIS DEVELOPMENT AND APPLICATION WAS HIGHLY EVALUATED FOR CONTRIBUTING TO THE PROMOTION OF ENGINEERING, SUCH AS PIONEERING THE MANUFACTURE, TRANSPORTATION, HITTING AND CURING OF LARGE-SCALE UFC IN THE FIELD, AND THE FACT THAT SLIM FASTENERS CAN BE APPLIED TO UFC SITES HITTING ELSEWHERE IN THE FUTURE.
The obayashi group will continue to contribute to solving social issues by working to create a city where people can live safely and securely not only in japan but also overseas through engineering that brings together technology and wisdom.
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