[SAP2000으로 배우는 구조역학] 15장 내진설계 Seismic Design: 푸쉬오버 해석 Pushover Analysis
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#SAP2000 #따라하기 #Tutorial
#내진설계 #Seismic_Design #푸쉬오버_해석 #Pushover_Analysis
구조시스템연구실 Structural System Laboratory, https://www.kim2kie.com
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Reference 
• KSSE Structural Engineers, How to perform properly Nonlinear Pushover Analysis in SAP2000 v24, 2022.05.
  https://youtu.be/Vk8qeay9J_c

[YouTube] 
https://youtu.be/419Q2EpOYs8

■ 개요
.단위: kN, m
.구조물: 3 stories 2 bay (3 m 층고, 6 m 지간)
.연직하중: 10 kN/m

■ 푸쉬오버 해석 기준
.FEMA 273-1997 NEHRP Guidelines for the Seismic Rehabilitation of Buildings
.FEMA 356-2000 Prestandard and commentary for the seismic rehabilitation of buildings
.ASCE 41-13 Seismic evaluation and retrofit of exitsting buildings
.ASCE 41-17 Seismic Rehabilitation of Existing Buildings

■ Key Procedure
1. 모델링
2. 중력하중
   ▷ Assign > Frame Loads > Distributed Loads...
3. 보와 기둥의 양단에 비선형 힌지 정의
   ▷ Assign > Frame > Hinges...
   ▷ Assign > Frame > Hinges Overwrites
   ▷ Define > Section Properties > Hinge Propertiels...
4. 수평 지진하중
   ▷ Define > Load Cases... >  
      - Modal | Max Modes(6), Show Advanced Load Parameters(O), Load Type(Accel)
      - Add New Load Case... |
           Name(Pushover), Analysis Type(Nonlinear), Load Type(Accel), Scale Factor(-1), 
           Load Application(Displacement Control)
           Result Saved(Multiple States)
5. 결과
   ▷ Display > Show Static Pushover Curve...