VSH Turòa nad Bodvou - Nemetschek Scia

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Analysis of the Atrium Steel Structure General Designer: STRABAG a.s. Author of Design: RFR Paris, Jean Lelay Structural engineer: PARS Building s.r.o. ing. Jaromír Tomek Workshop documentation: PARS building s.r.o. ing. Jaromír Tomek Reviewer: Ing. Adolf Godík (BUREAU VERITAS) According to the orders of the general designer, this document contains a comparison of the authors’ design of the Atrium steel structure with realisation of the documentation by the structural engineer. Basic data The following data and documents were used for the comparative stress analysis: • Stress analysis - PARS Building • Workshop documentation - PARS Building • Design documentation - RFR Paris – Fragments without static calculation Used resources FEM stress analysis software: ESA Prima Win 3.40.04 Spreadsheet program: Microsoft Excel Used codes DIN 18 800 Design of steel structure DIN 1055 Loads The elastic check was made according to T1 article 750. The limit for the torsional check was 0,1. All sectional characteristics of all general sections were calculated with FEM analysis. Structure description The steel structure consists of truss lift columns as a grand load bearing structure, which is dominant for all vertical members. The roof is made with a system of rods, tube columns and T-beams, which form the bearing structure of the roof and facade glazing. Steel structures compose the southern atrium of the building. All possible temperature changes are taken into account. The anchorage of the system is especially designed to reduce the forces coming from this changes. Structural stress analysis This calculation was done as a 3D analysis with loads fully based on DIN 1055. The software calculates all possible combinations and adds together the appropriate maximums with the appropriate combination factors. Only an exemplar part of the structure was printed for this review as a representative extract. Analysis tasks The first task is to model and evaluate two different designs, the second task is to compare the results, advantages and handicaps. Evaluation 1. RFR - Paris Structure - T-beams with one brace According to our analysis this structure is insufficient. See the members with red area of sections efficiency. The first basic handicap of the structure is sections insufficiency between ca 1,2 to ca 3,7. The second handicap – T- beams with only one brace is the static system with tendency of infinity growing deformations in case of insufficient torsion rigidity of the supporting beam (in this case a triangle beam with insolvable torsion) The third handicap – torsion of the triangle beams – there is an absence of theory, we have no possibility to make correct physical or engineering calculations to solve this problem and make the structure infallible. The fourth handicap – buckling of the lower strips of the triangle beams is an unsolvable problem. This structure cannot be realised without additional comments. 2. PARS - Building Structure - T-beams with two braces According to our second analysis the structure is in limit or slightly over. Additional second braces eliminate the torsions’ problem and assure the stability of the T- beam cantilever. Buckling of the lower strips of triangle beams remains only on the primary beams. According to this calculation, the infallibility of this system is sufficient. Reserves in critical parts of beams are still very small and the stress in some parts of beams is in area of material plasticity. It could cause growing deformations. Such structures could be too sensitive to many different small accidents as a fire and dynamic accidents etc. All analysis details and more/all information are in electronic form and it is possible to make complementary documents. Conclusion Such an important structure with great impact on a public area with high traffic has to be systematically constructed with more attention to safety, taking financial demands into account. River City Prague The project concerns an atrium in the city of Prague. The steel structure consists of truss lift columns as a grand load bearing structure, which is dominant for all vertical members. The roof is made with a system of rods, tube columns and T-beams, which form the bearing structure of the roof and facade glazing. Steel structures compose the southern atrium of the building. All possible temperature changes are taken into account. The anchorage of the system is especially designed to reduce the forces coming from these changes. River City Prague 193
5 CAE Special Projects Ing. Daniel Bukov OK TEAM Address Budatínska 31 • 851 05 Bratislava (SK) Telephone +421 263815362 Fax +421 263537744 Contact Mr Daniel Bukov Email d.bukov@okteam.sk Website www.okteam.sk The small private company of Ing. Daniel Bukov OK TEAM is specialised in the structural analysis of buildings as well as technological objects as pipes, vessels, bearing parts of machines, … I started my own small firm, as one of the many structural engineers in Slovakia in 1991. At that time I worked as a structural designer in one of the biggest Slovak designing companies. From the year 2001 on, I worked as a private structural designer, mostly for conceptual structural designers and for making calculations. During this time a lot of things changed in my professional life: increased efficiency of computers, of operating systems and of course of computers program. In the beginning, I worked with the computer program NE-XX, SAPIV running under DOS, later on with FEMDESIGNER, STRAP, STAAD, SAP2000 and of course with ESA-Prima Win. Used software • SCIA•ESA PT, ESA-Prima Win 194 SCIA User Contest 2007 • Category 5 • CAE Special Projects Vessel for dangerous liquid waste treatment calculation
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CAD Architecture CAD Engineering SC
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Copyright © 2007 SCIA Group Intern
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2 Table of content Foreword . . . .
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4 Table of content GBD ZT GmbH . .
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WINNER NOMINATIONS 6 Category 2: CA
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WINNER NOMINATIONS 8 Category 4: CA
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10 Introduction of the internationa
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40 Building bridges in the construc
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Category 3 3CAE Civil works (ESA) 6
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Le projet concerne la reconstructio
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Bouw van een museum Het ontwerp, va
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Project: Bridge ‘Olsene’ across
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When the Dutch Municipality of Utre
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In general „Universo“ is a mult
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Introduction to the project The inc
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Introduction L’étude menée dans
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Author: Ing. Ach. Rudolf Kruliac, I
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In General The block of flats “OB
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Die Realisierung des Zentralen Omni
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A steel-cage construction of seven
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Introduction The CS underground sta
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Inleiding De zuidelijke randweg is
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Inleiding Deze opdracht heeft als b
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Project Controlestudie van de opwaa
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The goal of this pedestrian bridge
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Project: Bicyclist and pedestrian b
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Bauherr: Pappas Georg Automobil AG
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Introductie Het gebied rond rioolwa
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Architect‘s vision The new underg
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Maitrise d’ouvrage : Syndicat Mix
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Introduction au projet En 2003, pou
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The regional indoor stadium of Lié
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Na de allesvernietigende brand op 3
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Le calcul présenté s’inscrit da
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Administration building realized by
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Il s’agit de la construction d’
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In general „PARK ONE“ is an off
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Cette opération consiste à transf
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General information Customer : Bakb
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Description du projet Construction
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The mission of the structural engin
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The mission of the structural engin
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Projektbeschreibung In 2006 hat die
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Schihalle mit 330 m Länge, 80-135
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Technical data of the project This
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Page 212 and 213: Data Délka bazénu 7400mm, šíøk
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Page 218 and 219: Type: Arched bridge Location: Schaa
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VSH Turòa nad Bodvou - Nemetschek Scia

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