Utjecaj krutosti priključaka na ponašanje čelične konstrukcije

master's thesis

• Title (english): Influence of joint stiffness on steel structure behaviour
• Author: Ivan Kasalo
• Mentor: Davor Skejić (mentor)
• Committee member: Ivan Lukačević (predsjednik povjerenstva)
• Committee member: Davor Skejić (član povjerenstva)
• Committee member: Mislav Stepinac (član povjerenstva)
• Granter: University of Zagreb; Faculty of Civil Engineering; (Structures); Zagreb
• Defense date and country: 2021-11-25, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Civil Engineering; Supporting Structures

Abstract

Današnji pristup projektiranja čeličnih konstrukcija baziran je na suvremenim metodama analize i modeliranja konstrukcija. Primjena koncepta djelomično nepopustljivih priključaka omogućuje ekonomsko optimiziranje materijala i rada, ali s druge strane zahtjeva specijalizirano znanje i veći trud projektanata. Ideja ovog rada je provođenje analize konstrukcije sa usvajanjem čim realnijeg ponašanja priključaka i njihovog utjecaja na globalno ponašanje dvobrodne dvoetažne čelične konstrukcije. Provedena
je usporedba ponašanja razmatrane konstrukcije s konzervativnim nepopustljivim, optimalnim nepopustljivim i djelomično nepopustljivim priključcima. Dodatno je prikazan proračun priključaka prema novoj metodi CBFEM (Metoda konačnih elemenata bazirana na metodi komponenti) koja omogućuje još realniju procjenu njihovog ponašanja. Ostvarene su uštede materijala, ali je najviše ušteđeno na radioničkoj izradi čeličnih konstrukcijskih elemenata i sklopova. Usvajanjem suvremenih metoda za analizu i dimenzioniranje čeličnih konstrukcija prema europskim normama projektanti postaju konkurentni, te projektiraju čelične konstrukcije
koje su, u isto vrijeme, i pouzdane i ekonomične.

Abstract (english)

Today's approach to the design of steel structures is based on modern methods of analysis and modelling of structures. The application of the concept of semi-rigid joints enables economic optimization of materials and work, but on the other hand requires specialized knowledge and greater effort of designers. The idea of this paper is to conduct a structure analysis with the adoption of the most realistic behaviour of the joints and their impact on the global behaviour of a two-bay two-storey steel structure. A comparison of the behaviour of the considered structure with the conservative rigid, optimal rigid and semi-rigid joints was performed. In addition, the calculation of connections according to the new CBFEM method (Component-based finite element method) is presented, which enables an even more realistic assessment of their behaviour. Material savings were achieved, but the most savings were made on the workshop production of steel structural elements and assemblies. By adopting modern methods for the analysis and design of steel structures according to European standards, designers become competitive, and design steel structures that are, at the same time, reliable and extremely economical.

• Keywords: čelik; djelomično nepopustljivi priključci; metoda komponenata; CBFEM; optimizacija konstrukcije
• Keywords (english): steel; semi-rigid joints; component method; CBFEM; optimization
• Language: croatian
• URN:NBN: urn:nbn:hr:237:712304
• 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: Construction Management; 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: 2022-04-11 08:12:19