目次

第 1 章 はじめに
1.1 WG の目的と立ち上げの経緯 ········································ 1-2
1.2 WG の体制 ························································ 1-6
1.2.1 WG メンバー ·················································· 1-6
1.2.2 SWG の構成 ··················································· 1-6
1.3 WG の活動記録 ···················································· 1-81.3.1 WG 開催記録 ·················································· 1-81.3.2 外部組織との協同活動········································· 1-9
第 2 章 事例調査
2.1 概要 ···························································· 2-2
2.2 防災拠点事例 ···················································· 2-32.2.1 自治体庁舎··················································· 2-32.2.2 医療施設 ···················································· 2-92.2.3 防災公園 ···················································· 2-202.2.4 エネルギー施設··············································· 2-252.3 街区建築計画事例················································· 2-282.3.1 街区都市構造モデル··········································· 2-28
2.3.2 街区免震計画················································· 2-33
2.4 まとめ ·························································· 2-37
第 3 章 レジリエンス評価
3.1 概要 ···························································· 3-23.2 レジリエンス一般論··············································· 3-33.2.1 レジリエンスの概念··········································· 3-33.2.2 レジリエンス評価事例········································· 3-73.2.3 自治体 BCP 事例··············································· 3-263.3 被害関数評価事例················································· 3-313.3.1 地震時の被害評価の実情······································· 3-313.3.2 被害評価を実施するための入力地震動 ··························· 3-32
3.3.3 構造部材の被害評価··········································· 3-33
3.3.4 非構造部材の被害評価········································· 3-34
3.3.5 ライフラインの被害評価······································· 3-35i3.4 防災拠点のレジリエンス評価······································· 3-36
3.5 まとめ ·························································· 3-39
第 4 章 都市免震構造の性能評価
4.1 概要 ···························································· 4-3
4.2 都市免震構造の設定··············································· 4-44.2.1 設定の経緯··················································· 4-44.2.2 防災拠点施設の設定··········································· 4-94.2.3 街区免震モデルの作成········································· 4-124.3 街区免震モデルの地震応答解析····································· 4-194.3.1 解析方針 ···················································· 4-194.3.2 解析モデル··················································· 4-194.3.3 解析結果 ···················································· 4-40
4.3.4 地震応答解析のまとめ········································· 4-574.4 防災拠点としてのレジリエンス評価 ································· 4-584.4.1 レジリエンス評価の仮定条件··································· 4-584.4.2 インフラ機能のレジリエンス評価 ······························· 4-60
4.4.3 病院機能のレジリエンス評価··································· 4-65
4.4.4 行政機能のレジリエンス評価··································· 4-78
4.4.5 収容機能のレジリエンス評価··································· 4-96
4.4.6 レジリエンス評価のまとめ····································· 4-98
4.5 レベル 2 超えの地震動に対するレジリエンス評価 ····················· 4-103
4.5.1 入力地震動の設定············································· 4-103
4.5.2 地震応答解析結果············································· 4-104
4.5.3 レジリエンス評価結果········································· 4-109
4.6 まとめ ·························································· 4-117
第 5 章 街区免震を実現するための留意点・課題点と解決策
5.1 概要 ···························································· 5-25.2 レジリエンス評価の課題··········································· 5-3
5.3 建築計画上の留意点··············································· 5-65.4 構造的諸課題の解決シナリオ······································· 5-85.5 免震構造の極限事象に関する検討··································· 5-95.5.1 極限事象の検討概要··········································· 5-95.5.2 長周期地震動に対する免震部材の多数回繰り返し変形の影響 ······· 5-10
5.5.3 擁壁衝突に関する検討········································· 5-61ii

5.5.4 水平上下動に対する応答性状の把握 ····························· 5-93
5.5.5 地震動の位相差入力による水平 2 方向応答の検討 ················· 5-126
5.5.6 極限事象の検討のまとめ······································· 5-147
5.6 まとめ ·························································· 5-149
第 6 章 まとめ6.1 活動成果の要約··················································· 6-2
6.1.1 性能評価 SWG ················································· 6-2
6.1.2 試設計 SWG ··················································· 6-2
6.1.3 解析検討 SWG ················································· 6-36.1.4 全体 WG ······················································ 6-36.2 今後の展望 ······················································ 6-4iii