scholarly journals SEISMIC RESPONSE EVALUATION CONSIDERING NATURAL PERIOD RATIOS AND MASS RATIOS WITH SUPPORTING SUBSTRUCTURE OF HP LATTICE SHELLS WITH STRAIGHT EDGE LINES SUBJECTED TO EARTHQUAKE MOTIONS WITH ARBITRARY DIRECTION

2021 ◽  
Vol 86 (780) ◽  
pp. 213-223
Author(s):  
Tomohiko KUMAGAI ◽  
Mari WAKAO ◽  
Kazuya NITTA ◽  
Toshiyuki OGAWA
Keyword(s):  
Seismic Response ◽  
Straight Edge ◽  
Response Evaluation ◽  
Arbitrary Direction ◽  
Natural Period ◽  
Mass Ratios ◽  
Hp Lattice ◽  
Lattice Shells

Shaking Table Test Study on Mid-Story Isolation Structures

2012 ◽  
Vol 446-449 ◽  
pp. 378-381
Author(s):  
Jian Min Jin ◽  
Ping Tan ◽  
Fu Lin Zhou ◽  
Yu Hong Ma ◽  
Chao Yong Shen
Keyword(s):  
Seismic Response ◽  
Seismic Isolation ◽  
Shaking Table Test ◽  
Base Isolation ◽  
Shaking Table ◽  
Natural Period ◽  
Isolation System ◽  
Isolation Layer ◽  
Lead Rubber Bearing ◽  
Complex Structural

Mid-story isolation structure is developing from base isolation structures. As a complex structural system, the work mechanism of base isolation structure is not entirely appropriate for mid-story isolation structure, and the prolonging of structural natural period may not be able to decrease the seismic response of substructure and superstructure simultaneously. In this paper, for a four-story steel frame model, whose prototype first natural period is about 1s without seismic isolation design, the seismic responses and isolation effectiveness of mid-story isolation system with lead rubber bearing are studied experimentally by changing the location of isolation layer. Respectively, the locations of isolation layer are set at bottom of the first story, top of the first story, top of the second story and top of the third story. The results show that mid-story isolation can reduce seismic response in general, and substructure acceleration may be amplified.

Seismic response evaluation of medical gas and fire-protection pipelines’ Tee-Joints

2018 ◽  
Vol 173 ◽  
pp. 1039-1053 ◽  
Author(s):  
Gianni Blasi ◽  
Maria Antonietta Aiello ◽  
Giuseppe Maddaloni ◽  
Maria Rosaria Pecce
Keyword(s):  
Seismic Response ◽  
Fire Protection ◽  
Response Evaluation ◽  
Medical Gas ◽  
Tee Joints

Review of assumptions in simplified multi-component and codified seismic response evaluation procedures

2015 ◽  
Vol 19 (5) ◽  
pp. 1320-1335 ◽  
Author(s):  
Alfredo Reyes-Salazar ◽  
Achintya Haldar ◽  
Juana L. Rivera-Salas ◽  
Edén Bojórquez
Keyword(s):  
Seismic Response ◽  
Response Evaluation ◽  
Evaluation Procedures
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