Seizmička analiza visoke čelične građevine izvedene konstrukcijskim sustavom dijagonalne uvinute mreže

master's thesis

• Title (english): Seismic analysis of tall steel building with twisted diagrid structural system
• Author: Ivan Ladavac Jančin
• Mentor: Ivan Lukačević (mentor)
• Granter: University of Zagreb; Faculty of Civil Engineering; (Structures); Zagreb
• Defense date and country: 2023, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Civil Engineering; Supporting Structures

Abstract

U radu su ukratko opisane karakteristike konstrukcijskih sustava dijagonalne mreže, te su navedene prednosti uporabe takvih sustava. Proveden je proračun dvije građevine, prve pravilnog tlocrta kao oglednog primjera i druge uvinutog konstrukcijskog sustava kao glavne teme ovog rada. Napravljen je seizmički proračun obje građevine koristeći spektralnu analizu, a faktori ponašanja preuzeti su iz znanstvenih radova koji su istraživali takve sustave. Zbog nepravilnosti oblika sustava uvinute dijagonalne mreže potrebno je bilo proučiti i primijeniti metode proračuna koje nisu u potpunosti obuhvaćene i opisane u smjernicama Europskih normi, osiguravajući pouzdanost projektirane građevine. Kao dodatna tema, posebno je istraženo djelovanje vjetra, koje je dominantno opterećenje na razmatranu građevinu. Uspoređene su vrijednosti djelovanja vjetra prema Europskoj normi te vrijednosti dobivene iz numeričke simulacije gibanja fluida, za koju je bio korišten specijalizirani računalni program. Primjena specijaliziranog programa je kalibrirana prilagođavanjem parametara simulacije za konstrukciju građevine pravilnog tlocrta uspoređujući dobivene rezultate s rezultatima dobivenim prema Europskoj normi. Dobiveni kalibrirani parametri su primijenjeni za građevinu uvinutog tlocrta. Za konačni dimenzionirani model konstrukcije uvijenog sustava dijagonalne mreže proračunati su priključci, te izrađeni dispozicijski i pregledni nacrti te nacrti karakterističnih detalja konstrukcije.

Abstract (english)

The thesis briefly describes the characteristics of diagonal grid systems, and the advantages of using such systems. The calculation of two buildings was carried out, the first with a regular floor plan as an example and the second with a twisted diagrid system as the main topic of this thesis. Seismic calculation of both buildings was made using modal response spectrum analysis, and the behavior factors were taken from academic papers that researched such systems. Due to the irregular shape of the twisted diagonal grid system, it was necessary to study and apply calculation methods that are not fully covered and described in the guidelines of European standards, ensuring the reliability of the designed building. As an additional topic, the effect of wind, which is the dominant load on the considered building, was particularly investigated. The values of wind action according to the European standard and the values obtained from the computational fluid analysis, for which a specialized computer program was used, were compared. The application of the specialized program was calibrated by adjusting the simulation parameters for the construction of a building with a regular floor plan, comparing the results obtained with the results obtained according to the European standards. The obtained calibrated parameters were applied on analysis of the twisted diagrid system. Connections were calculated for the final designed model of the twisted system of the diagonal grid, plans and overview drawings and drawings of characteristic construction details were made.

• Keywords: Uvinuta dijagonalna mreža; dijagrid; seizmički proračun; spektralna analiza; visoka čelična građevina; numerička simulacija gibanja fluida; Europske norme
• Language: croatian
• URN:NBN: urn:nbn:hr:237:217140
• Study programme: Title: Civil Engineering; specializations in: Construction Management, Transportation Engineering, Geotechnical Engineering, Hydraulic Engineering, Structural Engineering, Construction Materials, Theory and Modeling of Structures; Course: Structural Engineering; Study programme type: university; Study level: graduate; Academic / professional title: magistar/magistra inženjer/inženjerka građevinarstva (magistar/magistra inženjer/inženjerka građevinarstva)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Closed access
• Created on: 2023-07-18 08:09:36