The research aims to motivate towards an effort to rethink the current strategy in earthquake architecture in countries where new buildings are designed based on redundant systems. Momentarily, the codes and regulations coincide mostly in building rigid structures that break down in seismic events. The underlying idea was to minimize extra cost in affected zones by building extra (redundant) structural members in, so the buildings only partially or at least less rapidly collapse and give the people inside a chance to leave with their lives. This strategy is called “earthquake resistant” and has forces many quality restrictions while not protecting the inhabitant’s livelihoods. Furthermore, there are several active / semi active systems in place to prevent building collapse. (tuned) Mass damper systems etc. However, these are not commonly found in every normal building and maybe not even be necessary if there could be an alternative; found by controlling the resonance of the structure, damping the acceleration of the forces within the structure. There are many examples on strategies on how to secure the structural integrity of buildings throughout seismic events in history for example in the forbidden City of China (withstanding 200 Earthquakes in 600 years) and within many bamboo structures in South East Asia, but also very sophisticated contemporary solutions developed in Japan. Apparently only the rigidity of building codes, the slow market introduction of new concepts (often caused by lobbyism within supply chains), general cost aspects (especially considering frequency and likeliness of disaster events) and sheer trouble to communicate all techniques worldwide (especially across professions) prevent the rest of the world in pursuing a similar direction. Hopefully this research will be able to prove the relevancy of the field and open up questions and intent for further investigation.
La ricerca mira a motivare verso uno sforzo per ripensare l'attuale strategia di architettura sismica nei paesi in cui i nuovi edifici sono progettati sulla base di sistemi ridondanti. Momentaneamente, i codici e le normative coincidono principalmente nella costruzione di strutture rigide che si rompono in eventi sismici. L'idea alla base era quella di ridurre al minimo i costi aggiuntivi nelle zone colpite costruendo membri strutturali extra (ridondanti) in modo che gli edifici crollassero solo parzialmente o almeno meno rapidamente e dessero alle persone all'interno la possibilità di andarsene con le loro vite. Questa strategia si chiama "resistente ai terremoti" e ha imposto molte restrizioni di qualità senza proteggere i mezzi di sussistenza degli abitanti. Inoltre, esistono diversi sistemi attivi / semi attivi in atto per prevenire il collasso dell'edificio. (sintonizzati) Sistemi di smorzatori di massa, ecc. Tuttavia, questi non si trovano comunemente in tutti gli edifici normali e forse non sarebbero nemmeno necessari se ci fosse un'alternativa; trovato controllando la risonanza della struttura, smorzando l'accelerazione delle forze all'interno della struttura. Ci sono molti esempi di strategie su come garantire l'integrità strutturale degli edifici durante eventi sismici nella storia, ad esempio nella Città proibita della Cina (resistendo a 200 terremoti in 600 anni) e all'interno di molte strutture di bambù nel sud-est asiatico, ma anche molto sofisticate soluzioni contemporanee sviluppate in Giappone. Apparentemente solo la rigidità dei codici di costruzione, la lenta introduzione sul mercato di nuovi concetti (spesso causati dal lobbismo all'interno delle catene di approvvigionamento), aspetti di costo generali (soprattutto considerando la frequenza e la probabilità di eventi catastrofici) e la pura difficoltà a comunicare tutte le tecniche in tutto il mondo (specialmente tra le professioni ) impedire al resto del mondo di perseguire una direzione simile. Speriamo che questa ricerca sia in grado di dimostrare la pertinenza del campo e di aprire domande e intenti per ulteriori indagini.
Responsive systems in seismic computational design. Architectural early design phase implementation
FISCHER, TIM
2019/2020
Abstract
The research aims to motivate towards an effort to rethink the current strategy in earthquake architecture in countries where new buildings are designed based on redundant systems. Momentarily, the codes and regulations coincide mostly in building rigid structures that break down in seismic events. The underlying idea was to minimize extra cost in affected zones by building extra (redundant) structural members in, so the buildings only partially or at least less rapidly collapse and give the people inside a chance to leave with their lives. This strategy is called “earthquake resistant” and has forces many quality restrictions while not protecting the inhabitant’s livelihoods. Furthermore, there are several active / semi active systems in place to prevent building collapse. (tuned) Mass damper systems etc. However, these are not commonly found in every normal building and maybe not even be necessary if there could be an alternative; found by controlling the resonance of the structure, damping the acceleration of the forces within the structure. There are many examples on strategies on how to secure the structural integrity of buildings throughout seismic events in history for example in the forbidden City of China (withstanding 200 Earthquakes in 600 years) and within many bamboo structures in South East Asia, but also very sophisticated contemporary solutions developed in Japan. Apparently only the rigidity of building codes, the slow market introduction of new concepts (often caused by lobbyism within supply chains), general cost aspects (especially considering frequency and likeliness of disaster events) and sheer trouble to communicate all techniques worldwide (especially across professions) prevent the rest of the world in pursuing a similar direction. Hopefully this research will be able to prove the relevancy of the field and open up questions and intent for further investigation.| File | Dimensione | Formato | |
|---|---|---|---|
|
2020_04_Fischer_Tim_01.PDF
non accessibile
Descrizione: Masterthesis
Dimensione
13.07 MB
Formato
Adobe PDF
|
13.07 MB | Adobe PDF | Visualizza/Apri |
I documenti in POLITesi sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
https://hdl.handle.net/10589/153776