Search results for: TIMBER ROOF STRUCTURE

• Diagnosis and rehabilitation of timber elements in housing of traditional structure.

  Publication

  • S. Niewitecki
  • J. Przewłócki

  - Year 2004

  W pracy zaproponowano klasyfikację charakterystycznych, najbardziej narażonych na deteriorację miejsc w budynku mieszkalnym, które mogą wymagać rehabilitacji drewnianych elementów konstrukcyjnych. Rozpatrzono budynek "modelowy", zakładając, że jest on obiektem o typowej, powszechnie kiedyś stosowanej technologii. Omówiono podstawowe problemy dotyczące rehabilitacji konstrukcji drewnianych.

• Typology, current state and non-destructive testing of timber roof trusses of historic churches in the West Vistula Delta, Poland

  Publication

  • T. Zybała
  • M. Zielińska
  • M. Rucka
  • J. Przewłócki
  • K. Grębowski

  - Heritage Science - Year 2024

  This paper presents the current state of conservation of historic roof churches located in the Żuławy of Gdańsk (Poland). It also describes the architecture of these temples, the region itself and old carpentry techniques for constructing roof trusses. Interdisciplinary tests were carried out in six churches. The geometry of the load bearing structures, the moisture content and the carpentry technique were specified. The field...

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• SHM System of the Roof Structure of Sports Arena “Olivia”

  Publication

  • K. Wilde
  • M. Miśkiewicz
  • J. Chróścielewski

  - Year 2013

  The paper presents a structural health monitoring system of the Sports Arena “Olivia” in Gdansk, Poland. The system was installed because of doubts about the roof stability due to observed buckling of the steel truss members. The SHM system was based on nonlinear FEM models used for detection of type of near failure modes of the roof. The application of detailed FEM model in current state updated on data from in situ loading testes...

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• Portico Farmhouses of the Vistula Delta: Architecture, Current State and Finite Element Modelling of Timber Roof Truss under Material and Cross-section Uncertainty

  Publication

  • T. Zybała
  • K. Szepietowska
  • G. Bukal
  • I. Lubowiecka

  - International Journal of Architectural Heritage - Year 2022

  The article focuses on the oldest surviving I-type portico houses located in the Vistula Delta, which were built in the 17th and 18th centuries. The study describes the houses’ origins, structure, details of roof structures and technical condition, and it also includes numerical modelling of a roof truss and its mechanical analysis. Numerical models of the roof trusses are defined and analysed by means of the finite element method....

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• Analysis of Validation and Simplification of Timber-Frame Structure Design Stage with PU-Foam Insulation

  Publication

  • M. Szczepański
  • W. Migda

  - Sustainability - Year 2020

  The transition from experimental studies to the realm of numerical simulations is often necessary for further studies, but very difficult at the same time. This is especially the case for extended seismic analysis and earthquake-resistant design. This paper describes an approach to moving from the experimental testing of an elementary part of a wood-frame building structure to a numerical model, with the use of a commercial engineering...

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• Roof over PGE Arena in Gdansk. Review of structure and monitoring system

  Publication

  • K. Żółtowski
  • T. Romaszkiewicz

  - Year 2012

  This paper presents general structural assumptions of the steel construction designed for a newfootball stadium to be built for UEFA Championship 2012 in the city of Gdańsk. The superstructureis founded directly on the modified abutment. The facade and the roof are collected from 82 steelgirders made of tube profiles. The girders are braced by circular beams and X tension rods. All thiscreates a quasi - dome covered by polycarbonate...

• THE CONCEPT OF MODELING OF SNOW IMPACT ON THE STRUCTURE OF THE SUSPENDED TAURON ARENA ROOF IN CRACOW

  Publication

  • K. Grębowski

  - Year 2018

  The article presents studies and numerical simulations on modeling snow influence on TAURON ARENA suspended roof structure in Cracow. The scope of work includes experimental tests, functions solutions taking into account various cases of snow impact according to PN and EC, as well as numerical simulations for the sport and entertainment arena in the Czyzyny district. The FEM roof structure model developed in the SOFISITK software...

• REMONTY I PRZEBUDOWY DACHÓW Z ZASTOSOWANIEM ELEMENTÓW LEKKIEJ OBUDOWY

  Publication

  • E. Urbańska-Galewska
  • D. Kowalski

  - Izolacje - Year 2016

  W artykule przedstawiono przykładowe rozwiązania remontów i przebudowy dachów. Omówiono rozwiązania zmiany materiału pokrycia zarówno bez dodawania warstwy izolacyjnej, jak i z ułożeniem dodatkowej warstwy ocieplenia na istniejącej połaci dachowej a także sposób przebudowy dachu, polegający na ustawianiu nowej, lekkiej konstrukcji nośnej dachu, bezpośrednio na istniejącym pokryciu dachu płaskiego.

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• Wzmocnienie przestrzennych dźwigarów kratowych z zastosowaniem dodatkowego podparcia i sprężenia

  Publication

  • D. Kowalski

  - Year 2017

  Podczas obowiązkowego przeglądu technicznego obiektu budowlanego stwierdzone zostały deformacje stalowych prętów wykratowania przestrzennych dźwigarów dachowych. Opinie techniczne dotyczące stanu technicznego potwierdziły wstępnie wykryte nieprawidłowości i nakazywały podjęcie kroków zaradczych w postaci opracowania koncepcji naprawy, a w jej ślad projektu budowlanego i wykonawczego. Do czasu naprawy obiekt został dopuszczony do...

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• Drewniane więźby dachowe żuławskich domów podcieniowych typu III – badania, stan zachowania, analiza

  Publication

  • T. Zybała

  - Budownictwo i Architektura - Year 2019

  Zabytkowe domy podcieniowe ujścia Delty Wisły były obiektem zainteresowań wielu badaczy, jednak ich prace koncentrowały się głównie na aspektach historyczno-architektonicznych. Nie ma publikacji skupiających się na szczegółach i dokładnych analizach ustrojów budowlanych dla tej grupy historycznych obiektów. Artykuł jest rezultatem badań terenowych, kwerendy archiwalnej i obliczeń wykonanych przez autora....

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• Analiza statyczna i wytrzymałościowa konstrukcji wiszącej zadaszenia Stadionu Śląskiego

  Publication

  • K. Żółtowski
  • T. Romaszkiewicz
  • M. Drawc

  - Materiały Budowlane - Year 2015

  W artykule scharakteryzowano konstrukcję nośną zadaszenia Stadionu Śląskiego w Chorzowie, system statyczny i przyjęte rozwiązania konstrukcyjne. Przedstawiono poziom wytężenia kluczowych elementów oraz wytyczne dotyczące wzmocnienia. Analizy przeprowadzono w ramach audytu dokumentacji projektowej wykonanego na zlecenie inwestora.

• Instalacje fotowoltaiczne w budownictwie wielorodzinnym

  Publication

  • K. Seklecki
  • L. Litzbarski
  • K. Wójcik
  • Z. Cieślikowska
  • M. Włas
  • J. Grochowski

  - Przegląd Elektrotechniczny - Year 2024

  Artykuł opisuje wpływ instalacji fotowoltaicznych na bezpieczeństwo eksploatacji budynków wielorodzinnych. W oparciu o projekty rzeczywistych obiektów przeprowadzono analizę zwiększenia ryzyka strat odgromowych, zmiany obciążenia konstrukcji dachu i wzrostu zagrożenia pożarowego na skutek montażu systemu fotowoltaicznego. Przeprowadzone obliczenia wskazują na konieczność kompleksowego podejścia do projektowania instalacji fotowoltaicznych....

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• Timber frame houses resistant to dynamic loads - seismic analysis

  Publication

  • M. Szczepański
  • W. Migda

  - MATEC Web of Conferences - Year 2018

  The aim of the article is to present results of seismic analysis results of two real-sized timber frame buildings subjected to seismic excitations. The first model was insulated with mineral wool, the second one with polyurethane foam. Technology and specifications involved in both models construction is based on the previously conducted experimental research on timber frame houses, including wall panels tests, wall numerical models...

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• Analiza porównawcza sposobów wyznaczania obciążeń wiatrem na podstawie norm projektowych i analizy przepływu CFD

  Publication

  • R. Okoński
  • A. Ambroziak

  - Przegląd Budowlany - Year 2022

  W pracy poruszono tematykę wykorzystania analizy przepływu CFD do wyznaczania obciążeń wiatru na konstrukcje. Przedstawiono analizę trzech modeli budynków o dachu dwuspadowym o różnych kątach nachylenia, dla których dokonano porównania wielkości współczynników parcia z wynikami dostępnymi w literaurze. Obliczenia analityczne wykonano zgodnie z normą z PN-EN 1991-1-4, natomiast obliczenia numeryczne wykonano w programie R-Wind Simulation....

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• Experimental dynamic study on a timber-frame house using shaking table

  Publication

  • M. Szczepański
  • R. Jankowski

  - Year 2011

  The aim of this paper is to show the results of the shaking table experimental study concerning the behaviour of the model of the timber-frame house under earthquake excitation and impact loading. In order to determine the basic dynamic properties of the undamaged structure, the free vibration and the sweep-sine tests were first conducted. Then, the model was excited using the time history record of the El Centro earthquake of...

• Timber Frame Houses with Different Insulation Materials - Seismic Analysis

  Publication

  • M. Szczepański
  • W. Migda
  • R. Jankowski

  - IEEE Access - Year 2017

  The aim of this article is to present results of a dynamic numerical analysis focused on the response of two timber frame building structures exposed to seismic excitations. The first structure was insulated with mineral wool, while the second one with polyurethane foam. Specifications and technology involved in the models' construction are based on the previously conducted experimental study, upon which numerical structural models...

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• MODAL ANALYSIS OF REAL TIMBER FRAME HOUSES WITH DIFFERENT INSULATION MATERIALS

  Publication

  • M. Szczepański
  • W. Migda
  • R. Jankowski

  - Advances in Science and Technology Research Journal - Year 2016

  The aim of this article is to present the results of a numerical modal analysis of two actual structures of timber frame buildings and the different behaviour due to the used insulation material. One model of the timber structure was filled with mineral wool, while the other with polyurethane foam. During the modal analysis, eigenvalues for both models have been determined. The results of the analysis clearly show the increase...

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• Timber - material of the future. Examples of small wooden architecture structures.

  Publication

  • D. Wojtowicz-Jankowska
  • T. Żmijewski

  - Year 2017

  The aim of this article is to present various types of wood-based products, classified as engineered timber, while specifying the implications of their structural properties for their forms. Timber is used as a construction material due to its fire resistance, good structural characteristics and insulating properties. The advent of new technologies of wood processing and wood-based materials production has converted timber into...

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• The reasons of considarable deflections of roof trusses in engineering analysis

  Publication

  • J. Wojtas
  • J. W. Kaczmarek
  • J. Przewłócki

  - Year 2013

  The aim of the paper is to present an unconventional analysis of deformations of roof trusses of an exhibition pavilion. Structure of the main hall of the pavilion consists of repeatable span frames with steel pillars made of I-sections, fastened in the foundations and hinged supporting roof girders. The roof trusses, completed in steel construction, have undergone considerable permanent deflections. Deformations of the lower chord...

• The selected roof covering technologies in the aspect of their life cycle costs

  Publication

  • M. Apollo
  • A. Siemaszko
  • E. Miszewska

  - Open Engineering - Year 2018

  In the article is presented an analysis of the life cycle costs calculation for selected roof coverings. The scope of research includes costs of construction, maintenance and demolition of the roof covering structure for two alternative technologies – the traditional and new generation. On the presented example of an industrial building with a roof area of 1000 m², the above costs are taken to consideration for the roof covering...

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• Nonlinear numerical simulation of earthquake-induced pounding between timber frame buildings

  Publication

  • W. Migda
  • M. Szczepański
  • N. Lasowicz
  • A. Jakubczyk-Gałczyńska
  • R. Jankowski

  - AIP Conference Proceedings - Year 2020

  Earthquakes may induce serious dynamic loads acting on buildings, which can lead to damage or even destruction of the whole structure. In densely populated areas, it is quite common that buildings are located very close one to another which can result in pounding between them during ground motions. Due to the environmental awareness, multi-story timber frame buildings are gaining popularity and therefore there is a need to investigate...

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• Stability of roof trusses stiffened by corrugated sheets

  Publication

  • P. Iwicki

  - Year 2010

  The present parametric study is devoted to the stability analysis of a set of trusses stiffened by decking of corrugated steel sheets. For different parameters of corrugated sheets the critical loading of the roof is calculated. In the parametrical analysis the threshold bracing condition of the roof is obtained. Then the geometrically non-linear analysis of trusses braced by corrugated sheets was conducted. As a results of non-linear...

• Porównanie obciążenia wiatrem wyznaczonego na podstawie procedur normowych z wynikami symulacji w cyfrowym tunelu aerodynamicznym dla hali stalowej.

  Publication

  • W. Migda
  • M. Gordziej-Zagórowska
  • P. Deniziak
  • W. Leszczyńska

  - Builder - Year 2023

  W niniejszych badaniach porównano obciążenia od wiatru wyznaczonego metodą normową oraz w cyfrowym tunelu aerodynamicznym. Analizom poddano typowy budynek hali na planie prostokąta z dwuspadowym dachem w czterech wariantach geometrycznych. W pierwszym etapie budynki zwymiarowano bazując na obciążeniach od wiatru wyznaczonych według Eurokodu. Następnie dla poszczególnych elementów konstrukcyjnych określono poziom wytężenia. Dla...

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• Naprawa po pożarze stalowej wielokondygnacyjnej wieży produkcyjnej z zastosowaniem sprężanych elementów wzmocnienia

  Publication

  • D. Kowalski

  - Year 2017

  Pożar we wnętrzu wielokondygnacyjnego obiektu produkcyjnego o stalowej konstrukcji ramowej spowodował znaczne uszkodzenia w zakresie stalowych stropów międzykondygnacyjnych oraz części głównych słupów nośnych obiektu. Pomimo dużych strat w obrębie konstrukcji i lekkiej obudowy obiektu oraz długiej akcji gaśniczej udało się uratować w całości baterię technologicznych silosów magazynowych zlokalizowanych na jego dachu. Wydane bezpośrednio...

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• The aluminium and polycarbonate covering to the roof over the stadium in Gdańsk

  Publication

  • D. Kowalski

  - STEEL CONSTRUCTION - DESIGN AND RESEARCH - Year 2013

  This paper presents information about structural elements of the roof covering to the stadium in Gdansk built for the 2012 European Football Championship in Poland and the Ukraine. The paper discusses elements of the polycarbonate covering, the supporting structure and the drainage system. It also provides information about tests and research performed prior to construction, which determined the solutions adopted as well as...

• Modele numeryczne uwzględniające tarczową pracę pokrycia dachowego z blach trapezowych

  Publication

  • N. Korcz-Konkol

  - Czasopismo Inżynierii Lądowej, Środowiska i Architektury - Year 2017

  W artykule porównano wybrane sposoby uwzględniania w modelowaniu numerycznym tarczowej pracy pokrycia dachowego z blachy trapezowej, możliwe do zrealizowania w programie Autodesk Robot Structural Analysis Professional 2015, w celu oceny słuszności stosowania ich do obliczeń konstrukcji nośnej współpracującej z poszyciem z blachy trapezowej. Analizy przeprowadzono dla pojedynczej przepony. Za pomocą powłokowych elementów skończonych...

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• Chemical composition of water from roof in Gdańsk, Poland

  Publication

  • S. Tsakovski
  • M. Tobiszewski
  • S. Vasil
  • Ż. Polkowska
  • J. Namieśnik

  - ENVIRONMENTAL POLLUTION - Year 2010

  This study deals with the assessment of roof runoff waters from the region of Gdansk collected during the winter season (2007/2008). The chemical analysis includes 16 chemical variables: major ions, PAHs and PCBs measured at 3 sampling sites for 6-14 rain events. Although the data set is of limited volume the statistical data treatment using self-organizing maps (SOM) reveals the main factors controlling roof runoff water quality...

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• Impact of the glazed roof on acoustics of historic interiors

  Publication

  • A. Kulowski

  - Year 2018

  The paper discusses the adverse acoustic phenomena occurring in the semi-open interiors (courtyards, yards) covered with a glass roof. Particularly negative is the rever-beration noise, which leads to the degradation of the utility functions of the resulting spaces. It involves the drastically reducing the intelligibility of speech, loss of natural sounding of music, problems with the sound system, as well as disturbances in the...

• Investigation on thermal changes of mechanical properties of textile fabric of National Stadium in Warsaw roof

  Publication

  • P. Kłosowski

  - Year 2013

  Subject of the research is investigation of mechanical properties of technical fabric Précontraint 1202 S2 used for construction of the mobile part of roof of National Stadium in Warsaw. The research has been focused on fabric behavior in low temperature conditions. The main question which had to be answer has been: is it save to open and close the roof or keep the roof in the close position in winter conditions?

• COMPARISON OF NOISE EMISSION OF HCT AND CLASSIC VEHICLE COMBINATIONS FOR TIMBER TRANSPORTATION IN SWEDEN

  Publication

  • U. Sandberg
  • S. Kharrazi
  • P. Mioduszewski

  - Year 2018

  By means of a special simulation tool, the noise emission of a high-capacity heavy vehicle (11 axles) was compared to that of a classic heavy vehicle (a truck-dolly-semitrailer with 8 axles). The two cases are designated “Extended vehicle” versus “Classic vehicle” in this study, having total lengths of 34 and 25 m, respectively. The Classic vehicle represents the most common articulated heavy vehicle configuration for transport...

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• Pesticides in rain and roof runoff waters from an urban region

  Publication

  • Ż. Polkowska
  • M. Tobiszewski
  • T. Gorecki
  • J. Namieśnik

  - Urban Water Journal - Year 2009

  The levels of organonitrogen, organochlorine and organophosphorus pesticides were monitored in rain and roof runoff waters in Gdask (Poland) over a period of 6 months (October 2000 - March 2001). Buildings included in the study were of different ages, and covered with a variety of roofing materials. Samples were collected during the precipitation events. Pesticides were determined by gas chromatography combined with NPD and ECD...

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• The impact of footing conditions of a vertical-axis floating-roof tank on structural shell deformation

  Publication

  • K. Żyliński
  • J. Górski

  - Year 2022

  Structural shells of fuel tanks are often subjected to geometric imperfections which may lead to exceeding the ultimate and serviceability limit states. One of the means triggering shell deformation is non-uniform settlement caused by incoherent soil conditions. Analysis carried out in the work concerns of vertical-axis, floating-roof cylindrical shell which volume is 50.000 m3, founded on a complex multi-layered soil. The sensitivity...

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• Photovoltaic Roof Tiles: The Influence of Heat Recovery on Overall Performance

  Publication

  • J. Wajs
  • A. Gołąbek
  • R. Michałka

  - ENERGIES - Year 2019

  A photovoltaic (PV) roof tile serves both as a roofing material and as an electricity-producing surface. The main aim of the present study was to increase the overall system efficiency of PV tiles by using heat recovery. The chosen strategy was two-fold: determine the operational efficiency of PV tiles and optimize construction to increase the cooling effect when using air as the working medium. A detailed experimental study was...

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• Timber-frame house resistant to dynamic loads - analysis of wall panel filled with polyurethane foam

  Publication

  • M. Szczepański
  • W. Migda
  • R. Jankowski

  - Vibrations in Physical Systems - Year 2016

  The present study shows the experimentally and numerically determined response of a single timber-frame house wall panel filled with polyurethane (PU) foam under dynamic loads. The harmonic tests were conducted for the following frequencies: 0.5 Hz, 1.0 Hz, 2.0 Hz and 5.0 Hz for various values of the specified displacement. Based on the results of the comparison between the experimental tests and the numerical analyses, the numerical...

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• Diagnosis of Damage in a Steel Tank with Self-Supported Roof through Numerical Analysis

  Publication

  • D. Burkacki
  • M. Wójcik
  • R. Jankowski

  - Key Engineering Materials - Year 2013

  The safety of civil engineering structures is one of the most important issues of building industry. That is why the assessment of the damage-involved structural response has recently become of major concern to engineers. Among a number of different approaches to diagnosis of damage, the method of measuring the changes in natural frequencies is considered to be one of the most effective indicators of global damage. From the practical...

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• Squashed entanglement for multipartite states and entanglement measures based on the mixed convex roof

  Publication

  • D. Yang
  • K. Horodecki
  • M. Horodecki
  • P. Horodecki
  • J. Oppenheim
  • W. Song

  - IEEE TRANSACTIONS ON INFORMATION THEORY - Year 2009

  New measures of multipartite entanglement are constructedbased on two definitions of multipartite information anddifferent methods of optimizing over extensions of the states. Oneis a generalization of the squashed entanglement where one takesthe mutual information of parties conditioned on the state's extensionand takes the infimum over such extensions. Additivity ofthe multipartite squashed entanglement is proved for both versionsof...

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• CONSTRUCTION TECHNOLOGY OF TIMBER-FRAME HOUSES RESISTANT TO DYNAMIC LOADS – STUDY ON MODELS OF EXTERIOR WALLS

  Publication

  • M. Szczepański
  • W. Migda
  • R. Jankowski

  - Advances in Science and Technology Research Journal - Year 2015

  The aim of this paper is to show the numeric representation of experimental studies concerning the behaviour of exterior wall models of a timber-frame house under harmonic loading. A single wall model according to traditional technology of timberframe house walls (filling with mineral wool) was tested. The analysis was conducted for the following frequencies: 0.5 Hz, 1.0 Hz, 2.0 Hz and 5.0 Hz for various values of the specified...

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• Moment resistance of I-section end-plate roof girder splices; a case study

  Publication

  • K. Żółtowski
  • P. Kalitowski

  - Archives of Civil Engineering - Year 2016

  This article deals with the problem of determining the resistance of end-plate connections. A nonlinear FEM model of the joint was constructed in order to predict its carrying capacity. A standard code procedure was done as well. The analyses have been done to assess atypical end-plate joints designed and constructed as a part of roof structures.

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• Acidity trace pollutants of urban rain and roof runoff from selected roof coverings

  Publication

  • Ż. Polkowska

  - International Journal of Environmental Sciences - Year 2010

  W pracy przedstawiono dane dotyczące chemizmu opadów atmosferycznych i wód spływnych pobranych na terenie dużej aglomeracji miejskiej. Oznaczane były: pH, aniony - chlorki, azotany i siarczany oraz metale ciężkie - cynk, ołów, miedź, kadm. Próbki były pobierane na terenie Trójmiasta i w Dąbrówce Tczewskiej koło Gdańska z budynków pokrytych nowymi i starymi pokryciami. Badania prowadzono od kwietnia do czerwca 2006.

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• Assessment of the impact of jet impingement technique on the energy efficiency of air-cooled BIPV/T roof tile

  Publication

  • J. Wajs
  • J. Łukasik

  - Archives of Thermodynamics - Year 2024

  The paper concerns a numerical analysis of cooling of the hybrid photovoltaic (PV) modules dedicated to Building-Integrated Photovoltaic/Thermal (BIPV/T) systems. Attention was focused on the photovoltaic roof tiles, using a jet impingement technique, in which the intensification of heat transfer is ensured by streams of air hitting the heat exchange partition. A series of numerical simulations were carried out to assess an influence...

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• Air-cooled photovoltaic roof tile as an example of the BIPVT system – An experimental study on the energy and exergy performance

  Publication

  • J. Wajs
  • A. Gołąbek
  • R. Michałka
  • D. Mikielewicz

  - ENERGY - Year 2020

  The air-cooled photovoltaic tile is a subject of presented investigations, which focused on improving the overall system efficiency of PV tiles with heat recovery. The operational efficiency of a PV roof tile, together with the construction optimising the air cooling efficiency, were the main points of plans realized at this research stage. The article describes the experimental research consisting of the assessment of electrical,...

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• Application of the Bodner-Partom constitutive equations for modelling of the technical fabric Valmex used for the hanging roof of the Forest Opera in Sopot

  Publication

  • K. Żerdzicki
  • P. Kłosowski
  • K. Woźnica

  - Year 2014

  The study of an inelastic properties of the technical fabric Valmex used for 20 years as the roof structure of the Forest Opera in Sopot (Poland) is presented. The uniaxial tensile laboratory tests with constant strain rate have been conducted and analysed. Parameters of the Bodner-Partom constitutive model have been identified and verified by numerical simulations. Two approaches of the parameters identification have been proposed:...

• Membranowe przekrycia wiszące -zagadnienia konstrukcyjno-materiałowe. Membrane hanging roof - constructional-material problems.

  Publication

  • A. Ambroziak
  • P. Kłosowski

  - Year 2005

  Artykuł przedstawia przykłady zastosowania membranowych przekryć wiszących w budownictwie ogólnym. Dodatkowo zwraca uwagę na wybrane zagadnienia konstrukcyjno-materiałowe tego typu obiektów.This paper presents the application examples of membrane hanging roof in building engineering. Additionally, attention to the chosen constructional-material problems of this type of structures has been focused.

• Comparison of non-linear statical analysis of truss with linear and rotational side supports and 3d roof model

  Publication

  • P. Iwicki

  - Year 2008

  In the paper geometrically non-linear analysis of example truss with linear and rotational elastic side supports is compared with geometrically non-linear analysis of part of the roof construction with purlins and truss-bracing. For different stiffness of side-supports a non linear relation between normal force in compressed chord due to out of truss plane displacement has been calculated.

• Membrane-hanging roof analysis: an example

  Publication

  • A. Ambroziak

  - TASK Quarterly - Year 2006

  Artykuł przedstawia analizę konstrukcji membranowo cięgnowej poddanej obciążeniom klimatycznym. Analizowano wstępny wariant nowoprojektowanego przekrycia Opert Leśnej w Sopocie. Dyskutowane są również podstawowe równania modelu sieci gęstej wykorzystanego w opisie zachowania się tkaniy technicznej.

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• Structural response of existing spatial truss roof construction based on Cosserat rod theory

  Publication

  • M. Miśkiewicz

  - CONTINUUM MECHANICS AND THERMODYNAMICS - Year 2019

  Paper presents the application of the Cosserat rod theory and newly developed associated finite elements code as the tools that support in the expert-designing engineering practice. Mechanical principles of the 3D spatially curved rods, dynamics (statics) laws, principle of virtual work are discussed. Corresponding FEM approach with interpolation and accumulation techniques of state variables are shown that enable the formulation...

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• Dynamic analysis of the impact of the wind spectrum according to the theory of Davenport for lightweight structures of the roof in sports hall Czyzyna in Cracow.

  Publication

  • K. Grębowski

  - Year 2013

  The main aim of this analysis is to characterize numerical simulations connected with modeling dynamic influence of wind on the lightweight structures of the roof in sports hall – “Czyżyna”. This hall is built in Cracow. The article also involves the proposals of the solutions connected with dynamic influence of the wind – Davenport’s method has been used. These proposals have not been taken into consideration at the detailed engineering...

• Crystal structure and electronic structure of CePt2In7

  Publication

  • T. Klimczuk
  • O. Walter
  • L. Müchler
  • J. W. Krizan
  • F. Kinnart
  • R. J. Cava

  - JOURNAL OF PHYSICS-CONDENSED MATTER - Year 2014

  We report a corrected crystal structure for the CePt2In7 superconductor, refined from single crystal x-ray diffraction data. The corrected crystal structure shows a different Pt–In stacking along the c-direction in this layered material than was previously reported. In addition, all of the atomic sites are fully occupied with no evidence of atom site mixing, resolving a discrepancy between the observed high resistivity ratio of...

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• Life Cycle Cost Assessment and the Optimum Design of Timber Roofs for Sustainable Construction

  Publication

  • K. Krzywiński
  • Ł. Sadowski

  - Year 2019

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• Risk assessment of biocides in roof paint. Part 1

  Publication

  • C. Jungnickel
  • F. Stock
  • T. Brandsch
  • J. Ranke

  - ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH - Year 2008

  Szereg pokryć dachowych, jak farby dachowe, zawiera w swoim składzie biocydy. Dotychczas nie wiadomo do jakiego stopnia biocydy wymywane są z farb dachowych, a ponadto jakie ich stężenie może występować w systemach zbierających wodę deszczową. Zbadano podatność na wymywanie biocydów z różnych niemieckich farb dachowych oraz oszacowano ich stężenie w zebranej wodzie deszczowej

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