{"id":94,"date":"2025-09-26T16:29:13","date_gmt":"2025-09-26T07:29:13","guid":{"rendered":"https:\/\/e-defense.bosai.go.jp\/eng\/?page_id=94"},"modified":"2025-12-09T13:44:59","modified_gmt":"2025-12-09T04:44:59","slug":"project_01","status":"publish","type":"page","link":"https:\/\/e-defense.bosai.go.jp\/en\/project_01\/","title":{"rendered":"R&#038;D for Enhanced Earthquake Resistance"},"content":{"rendered":"<main>\r\n    <section class=\"second research project\">\r\n      <div class=\"bg\">\r\n        <h2>Research Results<\/h2>\r\n      <\/div>\r\n      <div class=\"breadcrumb\">\r\n        <ul>\r\n          <li><a href=\"\/en\/\">Home<\/a><\/li>\r\n          <li><a href=\"research_index\/\">Research Results<\/a><\/li>\r\n          <li class=\"current\">R&amp;D for Enhanced Earthquake Resistance<\/li>\r\n        <\/ul>\r\n      <\/div>\r\n      <div class=\"inner02\">\r\n        <div class=\"index\">\r\n          <ul>\r\n            <li class=\"current\"><a href=\"project_01\/\">R&amp;D for Enhanced Earthquake Resistance<\/a><\/li>\r\n            <li><a href=\"handbook\/\">Earthquake Preparedness Handbook for Hospital Staff<\/a><\/li>\r\n            <li><a href=\"achievement\/\">Presentations for NIED Annual Research Results Forum<\/a><\/li>\r\n          <\/ul>\r\n        <\/div>\r\n        <div class=\"contents\">\r\n          <h3>R&amp;D for Enhanced Earthquake Resistance<\/h3>\r\n          <p>To enhance Japan\u2019s resilience against major earthquake disasters, we utilize E-Defense to conduct experiments that reproduce earthquake damage and demonstrate and evaluate the seismic performance of structures and related mitigation technologies. Through these activities, we advance earthquake disaster mitigation technologies and strengthen social infrastructure. We also carry out research on seismic performance assessment using simulation techniques to further improve these technologies.<\/p>\r\n          <section class=\"project\">\r\n            <div class=\"project_box\">\r\n              <div class=\"box red\">\r\n                <div class=\"txt\">\r\n                  <h4>Elucidating the collapse process of structures<\/h4>\r\n                  <p class=\"ttl\">Acquisition of Data for Elucidating the Destruction Mechanisms of Buildings Constructed under old Earthquake Resistant Standards<\/p>\r\n                  <ul>\r\n                    <li>Conducted on wooden houses, reinforced concrete buildings, steel-frame buildings, and other structures.<\/li>\r\n                    <li>Collected data and video footage on the processes of damage and collapse of buildings subjected to the shaking experienced during the Kobe Earthquake.<\/li>\r\n                    <li>Verified retrofitting technologies and evaluation methods.<\/li>\r\n                  <\/ul>\r\n                <\/div>\r\n                <figure>\r\n                  <div class=\"video_box\">\r\n                    <video class=\"video\" src=\"https:\/\/e-defense.bosai.go.jp\/en\/wp-content\/themes\/e-defense\/assets\/video\/project\/\u6728\u9020\u30bb\u30c3\u30c8.mp4\" poster=\"https:\/\/e-defense.bosai.go.jp\/en\/wp-content\/themes\/e-defense\/assets\/video\/project\/poster_\u6728\u9020\u30bb\u30c3\u30c8.jpg\" controls muted><\/video>\r\n                  <\/div>\r\n                <\/figure>\r\n              <\/div>\r\n              <div class=\"box blue\">\r\n                <div class=\"txt\">\r\n                  <h4>Verification of Seismic Performance and Countermeasure Technologies<\/h4>\r\n                  <p class=\"ttl\">Demonstrating the Effectiveness of Buildings under Current Standards, Identifying Issues and Developing Countermeasure Technologies<\/p>\r\n                  <ul>\r\n                    <li>Conducted experiments on reinforced concrete and steel buildings.<\/li>\r\n                    <li>Demonstrated that buildings would not collapse even under the shaking of the Kobe Earthquake.<\/li>\r\n                    <li>Developed supporting technologies for continued use of buildings.<\/li>\r\n                  <\/ul>\r\n                <\/div>\r\n                <figure>\r\n                  <div class=\"video_box\">\r\n                    <video class=\"video\" src=\"https:\/\/e-defense.bosai.go.jp\/en\/wp-content\/themes\/e-defense\/assets\/video\/project\/\u5357\u6771\u5074\u5168\u666f2.mp4\" poster=\"https:\/\/e-defense.bosai.go.jp\/en\/wp-content\/themes\/e-defense\/assets\/video\/project\/poster_\u5357\u6771\u5074\u5168\u666f2.jpg\" controls muted><\/video>\r\n                  <\/div>\r\n                <\/figure>\r\n              <\/div>\r\n              <div class=\"box blue\">\r\n                <div class=\"txt\">\r\n                  <h4>Evaluating the Ability of Buildings to Maintain Function<\/h4>\r\n                  <p class=\"ttl\">Demonstrating the Impact on Building Functions and the Effectiveness of Countermeasure Technologies<\/p>\r\n                  <ul>\r\n                    <li>Conducted experiments with furnished indoor spaces to evaluate impacts on building functions.<\/li>\r\n                    <li>Obtained video data of indoor damage alongside building response.<\/li>\r\n                    <li>Demonstrated the effectiveness of seismic isolation structures and highlighted issues and countermeasures for long-period ground motions.<\/li>\r\n                  <\/ul>\r\n                <\/div>\r\n                <figure>\r\n                  <div class=\"video_box\">\r\n                    <video class=\"video\" src=\"https:\/\/e-defense.bosai.go.jp\/en\/wp-content\/themes\/e-defense\/assets\/video\/project\/\u75c5\u9662\u900f\u6790\u5ba4\u30b9\u30bf\u30c3\u30d5\u30eb\u30fc\u30e0\u77ed\u5468\u671f.mp4\" poster=\"https:\/\/e-defense.bosai.go.jp\/en\/wp-content\/themes\/e-defense\/assets\/video\/project\/poster_\u75c5\u9662\u900f\u6790\u5ba4\u30b9\u30bf\u30c3\u30d5\u30eb\u30fc\u30e0\u77ed\u5468\u671f.jpg\" controls muted><\/video>\r\n                  <\/div>\r\n                <\/figure>\r\n              <\/div>\r\n              <div class=\"box red\">\r\n                <div class=\"txt\">\r\n                  <h4>Development of High-Precision Analysis Technologies<\/h4>\r\n                  <p class=\"ttl\">R&amp;D on Detailed FEM, Pre- and Post-Processing, and Fundamental Technologies<\/p>\r\n                  <ul>\r\n                    <li>Improved the ability to reproduce damage behavior of buildings and other structures.<\/li>\r\n                    <li>Established pre- and post-processing technologies necessary for using multi-point measurement data in verification and validation (V&amp;V).<\/li>\r\n                    <li>Developed a general-purpose mesh generation algorithm.<\/li>\r\n                  <\/ul>\r\n                <\/div>\r\n                <figure>\r\n                  <div class=\"video_box\">\r\n                    <video class=\"video\" src=\"https:\/\/e-defense.bosai.go.jp\/en\/wp-content\/themes\/e-defense\/assets\/video\/project\/M1.mp4\" poster=\"https:\/\/e-defense.bosai.go.jp\/en\/wp-content\/themes\/e-defense\/assets\/video\/project\/poster_M1.jpg\" controls muted><\/video>\r\n                  <\/div>\r\n                  <div class=\"video_box\">\r\n                    <video class=\"video\" src=\"https:\/\/e-defense.bosai.go.jp\/en\/wp-content\/themes\/e-defense\/assets\/video\/project\/32.mp4\" poster=\"https:\/\/e-defense.bosai.go.jp\/en\/wp-content\/themes\/e-defense\/assets\/video\/project\/poster_32.jpg\" controls muted><\/video>\r\n                  <\/div>\r\n                <\/figure>\r\n              <\/div>\r\n            <\/div>\r\n          <\/section>\r\n          <section class=\"experiment_ex\">\r\n            <h4>Main Experiments<\/h4>\r\n            <section>\r\n              <h5>Understanding failure<\/h5>\r\n              <h6>We obtained realistic data to clarify the mechanisms of failure.<\/h6>\r\n              <div class=\"txt\">\r\n                <p class=\"ttl\">Data obtained for clarifying the failure processes of buildings constructed under outdated standards that could not withstand the Kobe Earthquake.<\/p>\r\n                <ul>\r\n                  <li>Verified the reliability of countermeasure technologies.<\/li>\r\n                <\/ul>\r\n                <p>Also obtained data on steel buildings, pile foundations, liquefied ground, and road bridge piers.<\/p>\r\n              <\/div>\r\n              <div class=\"figure_box\">\r\n                <figure><img decoding=\"async\" src=\"https:\/\/e-defense.bosai.go.jp\/en\/wp-content\/themes\/e-defense\/assets\/img\/experiment_ex_01_01.jpg\" alt=\"Wooden building\"\/>\r\n                  <figcaption>Wooden building<\/figcaption>\r\n                <\/figure>\r\n                <figure><img decoding=\"async\" src=\"https:\/\/e-defense.bosai.go.jp\/en\/wp-content\/themes\/e-defense\/assets\/img\/experiment_ex_01_02.jpg\" alt=\"RC building\"\/>\r\n                  <figcaption>RC building<\/figcaption>\r\n                <\/figure>\r\n                <figure><img decoding=\"async\" src=\"https:\/\/e-defense.bosai.go.jp\/en\/wp-content\/themes\/e-defense\/assets\/img\/experiment_ex_01_03.jpg\" alt=\"Bridge pier\"\/>\r\n                  <figcaption>Bridge pier<\/figcaption>\r\n                <\/figure>\r\n                <figure><img decoding=\"async\" src=\"https:\/\/e-defense.bosai.go.jp\/en\/wp-content\/themes\/e-defense\/assets\/img\/experiment_ex_01_04.jpg\" alt=\"Steel-frame building\"\/>\r\n                  <figcaption>Steel-frame building<\/figcaption>\r\n                <\/figure>\r\n                <figure><img decoding=\"async\" src=\"https:\/\/e-defense.bosai.go.jp\/en\/wp-content\/themes\/e-defense\/assets\/img\/experiment_ex_01_05.jpg\" alt=\"Pile foundation\"\/>\r\n                  <figcaption>Pile foundation<\/figcaption>\r\n                <\/figure>\r\n              <\/div>\r\n            <\/section>\r\n            <section>\r\n              <h5>Protecting Building Functionality<\/h5>\r\n              <h6>Demonstrating the reliability of technologies that preserve functionality.<\/h6>\r\n              <div class=\"txt\">\r\n                <p class=\"ttl\">Evaluating the ability of medical facilities to remain operational during earthquake disasters.<\/p>\r\n                <ul>\r\n                  <li>Verified the ability of seismic isolation structures to reduce the transmission of strong shaking.<\/li>\r\n                  <li>Compared indoor responses of buildings with seismic resistance and seismic isolation structures.<\/li>\r\n                  <li>Compared shaking caused by near-fault earthquakes and long-period ground motions.<\/li>\r\n                <\/ul>\r\n              <\/div>\r\n              <div class=\"figure_box\">\r\n                <figure><img decoding=\"async\" src=\"https:\/\/e-defense.bosai.go.jp\/en\/wp-content\/themes\/e-defense\/assets\/img\/experiment_ex_02_01.jpg\" alt=\"Seismic isolation building\"\/>\r\n                  <figcaption>Seismic isolation building<\/figcaption>\r\n                <\/figure>\r\n                <figure><img decoding=\"async\" src=\"https:\/\/e-defense.bosai.go.jp\/en\/wp-content\/themes\/e-defense\/assets\/img\/experiment_ex_02_02.jpg\" alt=\"Hospital room\"\/>\r\n                  <figcaption>Hospital room<\/figcaption>\r\n                <\/figure>\r\n                <figure><img decoding=\"async\" src=\"https:\/\/e-defense.bosai.go.jp\/en\/wp-content\/themes\/e-defense\/assets\/img\/experiment_ex_02_03.jpg\" alt=\"Operation room\"\/>\r\n                  <figcaption>Operation room<\/figcaption>\r\n                <\/figure>\r\n                <figure><img decoding=\"async\" src=\"https:\/\/e-defense.bosai.go.jp\/en\/wp-content\/themes\/e-defense\/assets\/img\/experiment_ex_02_04.jpg\" alt=\"Seismic isolation system\"\/>\r\n                  <figcaption>Seismic isolation system<\/figcaption>\r\n                <\/figure>\r\n                <figure><img decoding=\"async\" src=\"https:\/\/e-defense.bosai.go.jp\/en\/wp-content\/themes\/e-defense\/assets\/img\/experiment_ex_02_05.jpg\" alt=\"Seismic isolation system\"\/>\r\n                  <figcaption>Seismic isolation system<\/figcaption>\r\n                <\/figure>\r\n              <\/div>\r\n            <\/section>\r\n            <section>\r\n              <h5>Protecting Business Continuity<\/h5>\r\n              <h6>Proposed technologies to ensure continued use after massive earthquake.<\/h6>\r\n              <div class=\"txt\">\r\n                <p class=\"ttl\">Demonstration of damage-reducing technologies.<\/p>\r\n                <ul>\r\n                  <li>Verified the reliability of design methods for columns and beam joints that minimize damage and enable continued use after major earthquakes.<\/li>\r\n                <\/ul>\r\n              <\/div>\r\n              <div class=\"figure_box\">\r\n                <div class=\"video_wrap\">\r\n                  <div class=\"video_box\">\r\n                    <video class=\"video\" src=\"https:\/\/e-defense.bosai.go.jp\/en\/wp-content\/themes\/e-defense\/assets\/video\/project\/10\u5c64RC\u9ad8\u8010\u9707.mp4\" poster=\"https:\/\/e-defense.bosai.go.jp\/en\/wp-content\/themes\/e-defense\/assets\/video\/project\/poster_10\u5c64RC\u9ad8\u8010\u9707.jpg\" controls muted><\/video>\r\n                  <\/div>\r\n                <\/div>\r\n                <figure><img decoding=\"async\" src=\"https:\/\/e-defense.bosai.go.jp\/en\/wp-content\/themes\/e-defense\/assets\/img\/experiment_ex_03_01.jpg\" alt=\"Demonstration of damage-reducing technologies\"\/><\/figure>\r\n              <\/div>\r\n            <\/section>\r\n            <section>\r\n              <h5>Protecting Spatial Behavior<\/h5>\r\n              <h6>Next step: Protecting people\u2019s activity spaces.<\/h6>\r\n              <div class=\"txt\">\r\n                <p class=\"ttl\">Based on the damage observed during massive earthquakes at E-Defense:<\/p>\r\n                <ul>\r\n                  <li>Toward the development of technologies to understand damage to people\u2019s activity spaces.<\/li>\r\n                  <li>Toward the development of technologies to analyze risks to people\u2019s activity spaces.<\/li>\r\n                <\/ul>\r\n              <\/div>\r\n              <div class=\"video_wrap\">\r\n                <div class=\"video_box\">\r\n                  <video class=\"video\" src=\"https:\/\/e-defense.bosai.go.jp\/en\/wp-content\/themes\/e-defense\/assets\/video\/project\/\u9996\u90fd\u30ec\u30b8\u5ba4\u5185\u30b7\u30e7\u30fc\u30c8.mp4\" poster=\"https:\/\/e-defense.bosai.go.jp\/en\/wp-content\/themes\/e-defense\/assets\/video\/project\/poster_\u9996\u90fd\u30ec\u30b8\u5ba4\u5185\u30b7\u30e7\u30fc\u30c8.jpg\" controls muted><\/video>\r\n                <\/div>\r\n              <\/div>\r\n              <div class=\"figure_box\">\r\n                <figure><img decoding=\"async\" src=\"https:\/\/e-defense.bosai.go.jp\/en\/wp-content\/themes\/e-defense\/assets\/img\/experiment_ex_04_01.jpg\" alt=\"All-in-one monitoring\"\/>\r\n                  <figcaption>All-in-one monitoring<\/figcaption>\r\n                <\/figure>\r\n                <figure><img decoding=\"async\" src=\"https:\/\/e-defense.bosai.go.jp\/en\/wp-content\/themes\/e-defense\/assets\/img\/experiment_ex_04_02.jpg\" alt=\"Knowledge engine for indoor damage prediction\"\/>\r\n                  <figcaption>Knowledge engine for indoor damage prediction<\/figcaption>\r\n                <\/figure>\r\n              <\/div>\r\n            <\/section>\r\n            <section>\r\n              <h5>Eliminating Shaking<\/h5>\r\n              <h6>Next step: Protecting \u201cthings\u201d by preventing shaking from being transmitted.<\/h6>\r\n              <div class=\"txt\">\r\n                <p class=\"ttl\">Toward the development of technologies that dramatically reduce shaking at seismic intensity 7 (on the Japanese seismic scale).<\/p>\r\n                <ul>\r\n                  <li>Significantly reduces the forces acting on structures during earthquakes through a three-dimensional base isolation system.<\/li>\r\n                  <li>Technology that protects valuable \u201cthings\u201d.<\/li>\r\n                <\/ul>\r\n              <\/div>\r\n              <div class=\"figure_box\">\r\n                <div class=\"video_wrap\">\r\n                  <div class=\"video_box\">\r\n                    <video class=\"video\" src=\"https:\/\/e-defense.bosai.go.jp\/en\/wp-content\/themes\/e-defense\/assets\/video\/project\/\u6d6e\u63da\u514d\u9707.m4v\" poster=\"https:\/\/e-defense.bosai.go.jp\/en\/wp-content\/themes\/e-defense\/assets\/video\/project\/poster_\u6d6e\u63da\u514d\u9707.jpg\" controls muted><\/video>\r\n                  <\/div>\r\n                <\/div>\r\n                <figure><img decoding=\"async\" src=\"https:\/\/e-defense.bosai.go.jp\/en\/wp-content\/themes\/e-defense\/assets\/img\/experiment_ex_05_01.jpg\" alt=\"\u9707Toward the development of technologies that dramatically reduce shaking at seismic intensity 7\"\/><\/figure>\r\n              <\/div>\r\n            <\/section>\r\n          <\/section>\r\n        <\/div>\r\n      <\/div>\r\n    <\/section>\r\n  <\/main>","protected":false},"excerpt":{"rendered":"Research Results Home Research Results R&amp;D for Enhanced Earthquake Resistance R&amp;D for Enhanced Earthqu\u2026","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"page.php","meta":{"_acf_changed":false,"footnotes":""},"class_list":["post-94","page","type-page","status-publish","hentry"],"acf":[],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/e-defense.bosai.go.jp\/en\/wp-json\/wp\/v2\/pages\/94","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/e-defense.bosai.go.jp\/en\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/e-defense.bosai.go.jp\/en\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/e-defense.bosai.go.jp\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/e-defense.bosai.go.jp\/en\/wp-json\/wp\/v2\/comments?post=94"}],"version-history":[{"count":8,"href":"https:\/\/e-defense.bosai.go.jp\/en\/wp-json\/wp\/v2\/pages\/94\/revisions"}],"predecessor-version":[{"id":284,"href":"https:\/\/e-defense.bosai.go.jp\/en\/wp-json\/wp\/v2\/pages\/94\/revisions\/284"}],"wp:attachment":[{"href":"https:\/\/e-defense.bosai.go.jp\/en\/wp-json\/wp\/v2\/media?parent=94"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}