1,720,984 research outputs found
Seismic design of RC precast industrial building with cladding panels
Get PDFIn this thesis is analysed reinforced precast industrial building on the seismic impact\ud
according to standard SIST EN-1998-2:2006. Thesis deals with structural system and\ud
claddind panels and about non–structual elements and Eurocode. The work is based on\ud
behavior of the structure along with the facade panels and made a number of cases. Here\ud
we were interested in connections between the supportin structure and facade panels, which\ud
has been studied in the context of the European project SAFECLADDING. This project has\ud
made an extensive study of the contacts, which are in common practice in European\ud
construction. From the data obtained in the studies was a typical connection modeled and\ud
used in the analysis. To yield the best results, the structure has been analysed with non –\ud
linear analysis. The results of analysis on our assumptions determine what can withstand\ud
seismic forces the structure
Seismic design of an office-residential building in Maribor according to EC 8
Get PDFDiplomsko delo obravnava potresno odporno projektiranje v skladu z evropskim standardom EN 1998 (EC 8) na primeru že obstoječe osem etažne poslovno-stanovanjske stavbe v Mariboru, ki je bila leta 1999 projektirana v skladu z obstoječim predpisom. Vsebinsko je diplomsko delo razdeljeno na tri dele. V prvem delu je prikazano projektiranje stavbe po EC 8. Podani so podatki o konstrukciji in določena stopnja duktilnosti konstrukcije. Določeni so tudi vplivi na konstrukcijo. Linearno-elastična modalna analiza prostorskega modela je izvedena z računalniškim programom EAVEK. Prikazano je projektiranje dveh kritičnih nosilnih elementov konstrukcije, po enega za vsako pravokotno nosilno smer. Preverjeni sta strižna in upogibna nosilnost ter prikazano konstruiranje za zagotovitev lokalne duktilnosti. Izrisana sta tudi armaturna načrta za oba nosilna elementa. V drugem delu je obravnavana primerjava med obstoječim predpisom in standardom EC 8. Primerjava je izvedena z enakima računskima modeloma, z razliko, da je potrebno v skladu z EC 8 upoštevati vpliv razpokanosti prerezov. Zaradi precejšnjih razlik v načinu projektiranja prihaja do velikih razlik v rezultatih analize. Prikazane so razlike v lastnem nihanju konstrukcije in razporeditev notranjih sil v konstrukciji in posameznih elementih. Na dveh nosilnih elementih je preverjeno ali izračunana armatura po obstoječem predpisu zadosti tudi za strižno in upogibno nosilnost po EC 8. V tretjem delu je prikazana primerjava med različnimi modeli konstrukcije. Na podlagi primerjave lastnega nihanja in razporeditve notranjih sil v konstrukciji ter strižne in upogibne nosilnosti dveh nosilnih elementov konstrukcije je
prikazan vpliv upoštevanja razpokanosti prerezov in upoštevanja prirobnic elementov ter
obnašanje konstrukcije na območju Ljubljane z visoko potresno intenziteto.The graduation thesis deals with seismic design according to European standard EN 1998 (EC 8), examining the case of existing eight-storied office-residential building in Maribor that was designed in 1999 according to existing regulations. The subject matter splits the research into three parts. Part one presents the designing of the building, done according to EC 8: the information on structure is given, the structure’s ductility class set and the actions on structure are defined. Linear elastic modal analysis of the spatial model was conducted with the computer program EAVEK. The first part also shows the designing of two critical structural members, one for each transversal structural direction. Shear resistance and bending resistance were verified and so the detailing for assured local ductility is presented. In addition, reinforcement plans for the both two structural members are drawn. The second part compares the existing regulations and standard EC 8. The comparison was made with the same computational models, the only difference being that according to EC 8 cracked sections has to be taken into consideration. Due to quite some differences in the manner of designing, the results of the analysis offer big discrepancies. The differences in structure’s mode shapes are shown, as well as the arrangement of internal forces in the structure as a whole and in its individual structural members. It was examined out on two structural members, whether the reinforcement calculated according to existing regulations also suffices for shear and bending resistance according to EC 8. In the last part of the research the comparison between different models of structure is presented. By comparing its mode shapes and the arrangement of
structure’s internal forces, as well as shear and bending resistance of the two structural
members, this thesis shows the effect of considering cracked sections and considering wall
flanges, as well as the structure’s behaviour in the Ljubljana region with high seismic
intensity
Design of the reinforced concrete precast industrial buildings - critical evaluation of the requirements in Eurocode 8
Get PDFSeismic Behaviour of Reinforced Concrete Structural Walls Designed According to the European nad Slovenian Standards
Get PDFDesign of reinforced concrete business-residential building on seismic area
Get PDFReinforced concrete residential-business building design is a g thesis based on architect’s design concept. The thesis is in accordance with architectural plan and Eurocode standards. The lower six storeys are intended for stores and offices, while the upper five storeys serve as a residential space. The building perimeter is in »I« profile shape, which changes according to building’s height. The intended location of the facility is in Ljubljana. Supporting construction is entirely built of reinforced concrete. The construction is composed of a frame and walls which are connected with full concrete slabs at the storey levels. Apart from its own weight, vertical load such as imposed load and snow load are taken into consideration. \ud
As far as horizontal load is concerned, wind load and seismic load have been considered. We have designed five different numerical models. For analysis we have picked a model which best describes the real state and it’s in accordance with constructional requirements. We have analysed it with SAP2000 program. By constructing different models we found out that the assumption of rigid diaphragma is unjustified because of extremely elongated facility. The most appropriate model turns out to be a model, where slabs are modelled with shell elements, and the rest of the supporting construction is modelled with linear elements. First shape fluctuation is mostly translational with fluctuation in y direction, the second one is torsional, which affects the reduced behavioural factor, and the third is mainly translational with fluctuation in x direction. \ud
The basic slab has been designed, so have the inner and the outer frame and the walls which create a box-shaped core together which, due to their great stiffness, carry most of the weight. In the end, we have made armature sketches for the selected construction elements. Additionally, the armature sketch has been made
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