第４講　耐震診断と補強

　①　耐震基準はどのように整備されてきたか？

　（主な内容）市街地建築物法、建築基準法、新耐震基準、必要壁量・壁倍率

　②　阪神・淡路大震災等の家屋被害をふまえ、どのような法律や制度が整備されたか？

　（主な内容）耐震改修促進法、住宅の品質確保の促進等に関する法律（品確法）、

住宅性能表示制度、マンションの建替えの円滑化等に関する法律

　　③　東日本大震災の家屋被害の特徴は？

　　（主な内容）津波による木造住宅の被害、液状化による木造住宅の被害

　　④　既存不適格建物とは何か？　どのような対応が必要か？

　　⑤　耐震診断の手法にはどのようなものがあるか？

　　（主な内容）「誰でも出来る我が家の耐震診断」、一般診断、精密耐震診断

　　⑥　耐震補強を費用とするのはどの様な場合か？

　　（主な内容）壁の絶対量が不足している場合、壁が本来の性能を発揮できない場合、

　　　　　　　局部に生じる大きな変形や破壊を防ぐ場合

　　⑦　地震に強い工法にはどのようなものがあるか？

　　（主な内容）耐震・制震（制振）・免震

Lecture 4 Seismic diagnosis and reinforcement

① How have seismic standards been developed?

(Main content) Urban Buildings Act, Building Standards Act, new seismic standards, required wall amount/wall magnification

② What kind of laws and systems have been put in place in light of the damage to houses caused by the Great Hanshin-Awaji Earthquake?

(Main content) Act on the Promotion of Earthquake Retrofitting, Act on Promotion of Housing Quality Assurance (Quality Assurance Act),

Act on Housing Performance Indication System, Facilitation of Condominium Reconstruction, etc.

③ What are the characteristics of damage to houses caused by the Great East Japan Earthquake?

(Main content) Damage to wooden houses due to tsunami, damage to wooden houses due to liquefaction

④ What is an existing non-conforming building? What kind of response is necessary?

⑤ What types of seismic diagnosis methods are available?

(Main content) “Earthquake resistance diagnosis of your home that anyone can do”, general diagnosis, precise earthquake resistance diagnosis

⑥ In what cases is seismic reinforcement considered an expense?

(Main content) If the absolute amount of the wall is insufficient, if the wall cannot demonstrate its original performance,

To prevent large local deformation or destruction

⑦ What construction methods are available that are resistant to earthquakes?

(Main content) Earthquake resistance, vibration control (vibration control), and seismic isolation