Year 2007

• 52. ''KRYNICA 2006'' Scientific Conference

  Publication

  • P. Korzeniowski

  - Archives of Civil Engineering - Year 2007

  Praca jest raportem z konferencji naukowej ''Krynica 2006'', na której autor pełnił funkcję sekretarza naukowego. W pracy omówiono częć ogólnš i problemowš Konferencji. Przedstawiono udział poszczególnych jednostek naukowo badawczych w Konferencji oraz grupy tematyczne tam reprezentowane.

• Effect of different ventilation systems on air quality, heat consumption and psycho-physical comfort in modern residential buildings

  Publication

  • T. Maier
  • J. Tejchman

  - Archives of Civil Engineering - Year 2007

  Artykuł omawia wpływ różnych systemów wentylacji na jakość powietrza, zużycie ciepła i komfort psychiczno-fizyczny w nowoczesnych domach mieszkalnych na terenie Niemiec. Badania wykonano na kompleksie domków jednorodzinnych. Zbadano wpływ 4 systemów wentylacji.

Year 2011

• A graphical approach to yield and boundary surfaces of selected hypoplastic constitutive equations

  Publication

  • Z. Sikora
  • P. Cieśla

  - Archives of Civil Engineering - Year 2011

  The article describes how to identify the boundary and yield surface for hypoplastic constitutive equations proposed by Wu, Gudehus and Bauer. It is shown how to identify and plot the surfaces for any equation in this class. Calculation errors are analyzed characteristic for appleid set of numerical formulas. In the paper there are computer links to the source code prepared in the MATLAB system, based on istructions in the article....

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• A solution of non-linear differential problem with application to selected geotechnical problems

  Publication

  • A. Milewska

  - Archives of Civil Engineering - Year 2011

  A certain non-linear differential equation containing a power of unknown function being the solution is considered with application to selected geotechnical problems. The equation can be derived to a linear differential equation by a proper substitution and properties of the operations G and S.

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• A two-scale numerical approach to granular systems

  Publication

  • M. Nitka
  • J. Tejchman

  - Archives of Civil Engineering - Year 2011

  W artykule zaprezentowano wyniki dwuskalowego numerycznego podejścia do materiałów granulowanych. Na poziomie mikro materiał był modelowany przy zastosowaniu metody elementów dyskretnych, natomiast na poziomie makro przy zastosowaniu metody elementów skończonych na bazie macierzy sztywności wyznaczonej na podstawie naprężeń i odkształceń na poziomie mikro.

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• Advanced field investigations of screw piles and columns

  Publication

  • A. Krasiński

  - Archives of Civil Engineering - Year 2011

  Przedstawiono opis badań pali i kolumn wkręcanych na terenowym poletku doświadczalnym, wykonanych w ramach projektu badawczego MNiSW. Badania statyczne pali i kolumn wykonano z zaawansowanym systemem do pomiaru rozkładu siły wzdłuż trzonów. Przedstawiono podstawowe wyniki badań z rozdziałem obciążenia na podstawę i pobocznicę pali i kolumn.

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• Computing internodal conductivities in numerical modeling of two dimensional unsaturated flow on rectangular grid

  Publication

  • A. Szymkiewicz
  • K. Burzyński

  - Archives of Civil Engineering - Year 2011

  W artykule porównano rozwiązania numeryczne dwuwymiarowego równania przepływu nienasyconego z użyciem różnych metod uśredniania współczynnika przewodności hydraulicznej między sąsiednimiwęzłami. Uwzględniono średnia arytmetyczną, geometryczną, "pod prad" oraz całkową, a także niedawno zaproponowany sposób uśredniania oparty na analizie przepływu ustalonego. Ten ostatni sposób okazałsię najbardziej uniwersalny, gdyż umożliwiał otrzymanie...

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Year 2003

• Analysis of material properties of technical fabric for hanging roofs andpneumatic shells.

  Publication

  • P. Kłosowski
  • A. Zagubień

  - Archives of Civil Engineering - Year 2003

  Przedyskutowano zastosowanie w metodzie elementów skończonych specjalnego modelu elementu do analizy tkanin technicznych. Przedstawiono specjalne postępowanie z typowym elementem w płaskim w stanie naprężenia, tak aby uwzględnić można było zjawiska charakterystyczne dla tkanin technicznych. Zaproponowany model pozwala na zastosowanie niesprężystych związków konstytutywnych a w szczególności związków lepkoplastycznych. Opisano doświadczenia...

• Application of Adomian decomposition method in analysis of displacements ofrandom subsoil

  Publication

  • J. Przewłócki

  - Archives of Civil Engineering - Year 2003

  W pracy przedstawiono metodę dekompozycji Adomiana oraz jej zastosowanie do rozwiązania zagadnienia losowego ośrodka gruntowego. Rozpatrzono ważką warstwę gruntu, posadowioną na nieodkształcalnym podłożu, poddaną działaniu równomiernie rozłożonego pionowego obciążenia zewnętrznego. Przyjęto, że ośrodek jest sprężysty, a jego parametry są funkcjami losowymi. Uzyskano przybliżone rozwiązanie analityczne wraz z oceną zakresu jego...

• Free torsional vibration sensitivity analysis of thin walled beams.

  Publication

  • T. Mikulski

  - Archives of Civil Engineering - Year 2003

  W pracy przedstawiono analizę wrażliwości swobodnych drgań skrętnych bisymetrycznej , cienkościennej belki o otwartym przekroju poprzecznym, poddanej działaniu siły osiowej

• Japanese trace of a historical bridge in Poland.

  Publication

  • Z. Cywiński

  - Archives of Civil Engineering - Year 2003

  Komunikat wyjaśnia sprawę japońskiego tekstu związanego z powstaniem pierwszego na świecie spawanego mostu drogowego wybudowanego w roku 1929 z inicjatywy i według projektu profesora Stefana Bryły. Przybliżenie tej sprawy ma na celu dalszą międzynarodową promocję tego mostu jako znamienitego zabytku techniki w skali globu.

Year 2012

• Application of extended Finite Element Method to cracked concrete elements - numerical aspects

  Publication

  • J. Bobiński
  • J. Tejchman

  - Archives of Civil Engineering - Year 2012

  Artykuł omawia zastosowanie rozszerzonej metody elementów skończonych do zarysowanych elementów betonowych. Obliczenia wykonano dla elementów poddanych zginaniu i mieszanemu ściskaniu - rozciąganiu. Wyniki porównano z doświadczeniami.

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• Damage detection of a T-shaped panel by wave propagation analysis in the plane stress

  Publication

  • M. Rucka
  • W. Witkowski
  • J. Chróścielewski
  • K. Wilde

  - Archives of Civil Engineering - Year 2012

  W pracy zaprezentowano podejście obliczeniowe do analizy propagacji fal w płaskim stanie naprężenia. Problem brzegowo-początkowy podlega przestrzennej aproksymacji z użyciem wielowęzłowych, izoparametrycznych, czworobocznych elementów klasy C0. Macierze elementowe są całkowane numerycznie za pomocą kwadratury Gauss-Legendre-Lobatto. Aproksymację w dziedzinie czasu wykonano za pomocą algorytmu Newmarka. Symulacje numeryczne przeprowadzono...

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Year 2014

• Application of guided wave propagation in diagnostics of steel bridge components

  Publication

  • M. Rucka
  • B. Zima
  • R. Kędra

  - Archives of Civil Engineering - Year 2014

  Early detection of potential defects and identification of their location are necessary to ensure safe, reliable and long-term use of engineering structures. Non-destructive diagnostic tests based on guided wave propagation are becoming more popular because of the possibility to inspect large areas during a single measurement with a small number of sensors. The aim of this study is the application of guided wave propagation in...

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• Dome over the Gdynia seaport building

  Publication

  • T. Godycki-Ćwirko
  • K. Nagrodzka-Godycka
  • P. M. Piotrkowski (formerly: P. Piotrkowski)

  - Archives of Civil Engineering - Year 2014

  The paper presents the description of structure and the selected problems of the technical condition, as well as the strength analysis of the thin-walled reinforced concrete shell which has been making a covering of the main hall of the Gdynia Seaport Building through the last 80 years. The rectangle projection of four single curvature shells of the dome was shaped out of mutual perpendicular intersection of two cylindrical shells. The...

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• Multipoint Ultrasonic Diagnostics System of Prestressed T-Beams

  Publication

  • A. Kuryłowicz-Cudowska
  • K. Wilde

  - Archives of Civil Engineering - Year 2014

  This paper is devoted to the application of ultrasonic wave propagation phenomena for the diagnostics of prestressed, concrete, bridge T-beams. A multi-point damage detection system is studied with use of numerically obtained data. The system is designed to detect the presence of the material discontinuities as well as their location.

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Year 2002

• Approximation of Covariance Function with Application to Stochastic Mechanics.

  Publication

  • J. Przewłócki

  - Archives of Civil Engineering - Year 2002

  W pracy przedstawiono koncepcję rozwinięć kanonicznych dla funkcji losowych oraz możliwość ich zastosowania w stochastycznej mechanice gruntów. Rozpatrzono rozkład widmowy, rozwinięcia Karhunena-Loevego oraz rozwinięcia ortogonalne zmodyfikowanymi wielomianami Hermite'a. Przeprowadzono analizę błędów dla zagadnienia warstwy gruntu o losowych parametrach sprężystych, uzyskano analityczne rozwiązanie systemu stochastycznego.

Year 2008

• Archives of civil engineering. Intelligent graphic modeler integrating FE analisys of transient heat transfer with early computer-aided design of energy-efficient buildings

  Publication

  • M. Krzaczek

  - Archives of Civil Engineering - Year 2008

  W pracy zaprezentowano nowatorski Modeler Rozmyty, w którym zaimplementowano unikalną koncepcję rozpoznawania. Modeler Rozmyty dokonuje ekstrakcji danych geometrycznych poprzez rozpoznanie i identyfikację niedokładnych i niejednorodnych rysunków, złożonych z prostych obiektów graficznych.

• Influence of boundary conditions in calibration chamber

  Publication

  • L. Bałachowski
  • N. Kurek

  - Archives of Civil Engineering - Year 2008

  Przedstawiono wyniki badań modelowych penetracji w komorze kalibracyjnej z zastosowaniem modeli o różnej średnicy. Badania przeprowadzono w piasku średnio zagęszczonym i zagęszczonym przy stałej składowej poziomej naprężenia i przy składowej pionowej naprężenia w gruncie do 400 kPa. Określono wpływ warunków brzegowych na uzyskane wyniki oporu podstawy/oporu stożka lub ostrza dylatometru. Wyznaczono współczynniki korekcyjne oraz...

• Modeling of a rock fall using the discrete element method and study of the seismic signal

  Publication

  • A. Pater
  • E. Dembicki
  • P. Villard

  - Archives of Civil Engineering - Year 2008

  Mechanizm dużego spadającego bloku skalnego lub lawiny pozostaje nadal słabo rozpoznany zarówno w zakresie pęknięć jak i procesów propagacji. Jedynie ilościowe dane, które aktualnie są mierzone i uchwytne podczas spadania skały, zarejestrowane są jako sejsmiczne sygnały przez szereg sejsmografów. Właściwości sygnału (amplituda, trwanie, częstotliwość) są wyraźnie powiązane z cechami spadania (masa, wysokość spadania, odległość...

Year 2022

• Assessment of the application of CEM III with exposed aggregate as an alternative to CEM I for road pavements

  Publication

  • M. Kurpińska
  • A. Wcisło

  - Archives of Civil Engineering - Year 2022

  The article presents a results of study on the impact of replacing CEM I SR3/NA by CEMIII/A LH/HSR/NAon the mechanical properties and durability of pavement concrete with exposed aggregate. Was used granite aggregate and washed sand. Water/cement () ratio in the tested concretes constituted 0.35 and 0.4 and part of the cement was replaced with a 5% addition of natural pozzolana – zeolite. Compressive strength tests were performed...

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• Corrosion monitoring as a factor increasing the safety of hydrotechnical infrastructure

  Publication

  • R. Mazur
  • P. Stefanek
  • J. Orlikowski

  - Archives of Civil Engineering - Year 2022

  Water distribution systems at KGHM S.A. are of great importance for the efficient production of copper and environmental protection. For failures leading to perforation and leakage, the corrosion processes are responsible. This paper aims to assess corrosion on the basis of the analysis of the exposure of the Hydrotechnical Plant pipelines. To this end, the system of transfer and deposition of post-flotation waste as well as the...

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• Determination of vertical displacements by using the hydrostatic levelling systems with the variable location of the reference sensor,

  Publication

  • W. Kamiński

  - Archives of Civil Engineering - Year 2022

  Abstract: In this paper, the author proposed a new method for determination of vertical displacements with the use of hydrostatic levelling systems. The traditional method of hydrostatic levelling uses a rule in which a position of reference sensor is stable. This assumption was not adapted in the proposed method. Regarding the issue mentioned above, the reference sensor is treated in the same way as the others sensors that measure...

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• Effects of full displacement pile installation on the stress and deformation state of surrounding soil: review

  Publication

  • W. F. Kabeta

  - Archives of Civil Engineering - Year 2022

  Several field and model tests have been conducted to investigate the impact of pile installation on bearing capacity. However, little is known about how piles behave during installation, how they interact with the surrounding soil, and how this affects sandy soil properties. This review paper investigates the effect of pile driving on surrounding sandy soil as it compacts sandy soil near to the pile. For this purpose, various related...

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Year 2021

• Cable-stayed bridges. Basic static schemes

  Publication

  • K. Żółtowski

  - Archives of Civil Engineering - Year 2021

  The paper presents an overview of shaping of cable-stayed bridges. Historical background, basic static sketches and overview of selected bridges are included. Selected natural solutions and interesting unrealized projects were presented. Basic ideas and most important principals are discussed. The examples and sketches were given an author's comment. Static diagrams of two pylon structures with three variants of the arrangement...

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• Case study of water vapour transmission properties of EPDM façade membranes

  Publication

  • A. Ambroziak
  • S. Dobrowolski

  - Archives of Civil Engineering - Year 2021

  This research aimed to investigate the water vapour transmission properties of chosen EPDM membranes applied in façade and window systems under laboratory tests. The applied procedure included in national and international standards utilized for the laboratory tests of water vapour transmission properties of EPDM membrane is described. Two main types (outside and inside types) of EPDM membranes are laboratory tested. The authors...

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• Evaluating the convenience and safety effects of bicycle lanes in Gdańsk

  Publication

  • R. Okraszewska
  • K. Kijewska
  • J. Wachnicka
  • M. Mikusova

  - Archives of Civil Engineering - Year 2021

  Bicycle lanes are lanes marked on a road and dedicated for exclusive use for cyclists.. Because they combine bike and motor traffic they provide directness and flow. However, a shared use of streets could result in bicycle-car accidents. Following up on the good practice Western countries have in planning cycle infrastructure, Gdańsk has recently introduced bike lanes on a few streets. The aim of the research was to assess the...

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• Load capacity of steel-aluminium brackets under static and cyclic laboratory tests

  Publication

  • A. Ambroziak

  - Archives of Civil Engineering - Year 2021

  The aim of the research is the laboratory investigation of steel-aluminium brackets employed to fasten lightweight curtain walls to building facilities. Static pressure, suction forces, and cyclic loads parallel to end plates (horizontal – to simulate wind influence) were applied in the study. The steel-aluminium brackets were tested on a reinforced concrete substrate made of C30/37 concrete class to simulate the real working conditions....

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Year 2020

• CHARACTERIZATION STUDY ON MECHANICAL PROPERTIES OF POLYESTER COATED FABRIC

  Publication

  • A. Ambroziak

  - Archives of Civil Engineering - Year 2020

  The scope of the paper is to determine the mechanical properties of the Precontraint 1302 polyester coated fabric under uniaxial and biaxial tensile tests. The results are compared for Precontraint 1302 fabric and other types of coated fabrics. The author applied an orthotropic model and a dense net model to reflect the polyester coated fabric performance under uniaxial and biaxial tensile tests. Material parameters are specified...

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• DETERMINATION OF VERTICAL DISPLACEMENTS IN RELATIVE MONITORING NETWORKS

  Publication

  • D. Filipiak-Kowszyk
  • W. Kamiński

  - Archives of Civil Engineering - Year 2020

  The problem of determining displacements of objects is an important and current issue, in particular in terms of operational safety. This is a requirement that covers geodetic, periodic control measurements in order to determine horizontal and vertical displacements. The paper is focused on the analysis of vertical displacements. Geodetic measurements and their interpretation allow to reduce the risk of possible structural catastrophes....

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• Development of the New Polish Method for Capacity Analysis of Motorways and Expressways

  Publication

  • P. Olszewski
  • T. Dybicz
  • W. Kustra
  • A. Romanowska
  • K. Jamroz
  • O. Krzysztof

  - Archives of Civil Engineering - Year 2020

  The paper presents development of the new Polish method for performing capacity analysis of basic segments of dual carriageway roads (motorways and expressways). The method is based on field traffic surveys conducted at 30 motorway and expressway sites (class A and S roads) in Poland. Traffic flows, composition and travel times were observed in 15-min intervals at each site using ANPR filming method. These data were used to calibrate...

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• Improving the procedure of probabilistic load testing design of typical bridges based on structural response similarities

  Publication

  • P. Owerko
  • K. Winkelmann

  - Archives of Civil Engineering - Year 2020

  This paper concerns load testing of typical bridge structures performed prior to operation. In-situ tests of a two-span post-tensioned bridge loaded with three vehicles of 38-ton mass each formed the input of this study. On the basis of the results of these measurements, an advanced FEM model of the structure was developed for which the sensitivity analysis was performed for chosen uncertainty sources. Three uncorrelated random...

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• Inverse Analysis as a Key Element of Safety Assessment under the Snow Load For The Large Suspension Roofs Structure

  Publication

  • K. Żółtowski
  • M. Drawc

  - Archives of Civil Engineering - Year 2020

  The paper presents a concept and realization of monitoring system for the Silesian Stadium in Chorzow. The idea of the system lies in fusion of structure monitoring with a calibrated numerical FEM model [1]. The inverse problem is solved. On the base of measured selected displacements, the numerical FEM model of the structure combined with iterative method, develops the current snow load distribution. Knowing the load, we can calculate...

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Year 2017

• Curb-to-Barrier Face Distance Variation an a TB51 Bridge Barrier Crash Test Simulation

  Publication

  • K. Wilde
  • K. Jamroz
  • D. Bruski
  • M. Budzyński
  • S. Burzyński
  • J. Chróścielewski
  • W. Witkowski

  - Archives of Civil Engineering - Year 2017

  This paper addresses the problem of road safety regarding barrier placement as relative to the curb. A short summary of existing regulations is presented. Numerical simulations using the explicit finite element system Ls- Dyna are shown. In the analysis, variable distance between the barrier and the curb is assumed. The obtained result reveals that the distance has little impact on the working width of the barrier.

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• Damage Analysis of Tensioning Cable Anchorage Zone of a Bridge Superstructure, Using CDP Abaqus Material Model

  Publication

  • J. Chróścielewski
  • M. Miśkiewicz
  • Ł. Pyrzowski
  • B. Sobczyk

  - Archives of Civil Engineering - Year 2017

  Numerical analysis of the tensioning cables anchorage zone of a bridge superstructure is presented in this paper. It aims to identify why severe concrete cracking occurs during the tensioning process in the vicinity of anchor heads. In order to simulate the tensioning, among others, a so-called local numerical model of a section of the bridge superstructure was created in the Abaqus Finite Element Method (FEM) environment. The...

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• DYNAMIC RESPONSE OF FORUM GDANSK STRUCTURE DUE TO RAIL TRAFFIC

  Publication

  • M. Miśkiewicz
  • Ł. Pyrzowski
  • M. Rucka
  • K. Wilde
  • J. Chróścielewski

  - Archives of Civil Engineering - Year 2017

  The paper presents the study of the impact of vibration induced by the movement of the railway rolling stock on the Forum Gdańsk structure. This object is currently under construction and is located over the railway tracks in the vicinity of the Gdańsk Główny and Gdańsk Śródmieście railway stations. The analysis covers the influence of vibrations on the structure itself and on the people within. The in situ measurements on existing...

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Year 2006

• Discussion. Numerical analysis of thin-walled frames with flexible joints

  Publication

  • C. K. Szymczak (formerly: C. Szymczak)
  • I. Kreja
  • T. Mikulski
  • M. Kujawa

  - Archives of Civil Engineering - Year 2006

  Przedstwiono uwagi do artkułu Tews R., Rachowicz W. ''Numerical Analysis of Thin-Walled Frames with Flexible Joints'', Archives of Civil Engineering, 51, 3, 2005, ss. 344-369.

• Modelling of size effects in concrete using elasto-plascity with non-local softening

  Publication

  • J. Bobiński
  • J. Tejchman

  - Archives of Civil Engineering - Year 2006

  Artykuł przedstawia numeryczne symulacje MES efektów skali w materiałach kruchych takich jak beton , wykonane w warunkach płaskiego stanu odkształceń. Materiał był modelowany w ramach sprężysto-plastyczności z izotropowym wzmocnieniem i osłabieniem. W obszarze ściskania przyjęto liniowe kryterium Druckera-Pragera z niestowarzyszonym prawem płynięcia a w obszarze rozciągania liniowe kryterium Rankina ze stowarzyszonym prawem płynięcia....

Year 2009

• FE-analysis of spacing of localized zones in reinforced concrete bars under tension using elasto-plasticity with non-local softening

  Publication

  • Ł. Widuliński
  • J. Bobiński
  • J. Tejchman

  - Archives of Civil Engineering - Year 2009

  W artykule przedstawiono wyniki numerycznej analizy lokalizacji odkształceń w pręcie żelbetowym poddanym rozciąganiu. Obliczenia wykonano przy zastosowaniu metody elementów skończonych i sprężysto-plastycznego modelu z nielokalnym osłabieniem. Pokazano wpływ różnych parametrów na nośność pręta i rozstaw lokalizacji.

• Formulation of spectral truss element for guided waves damage detection in spatial steel trusses

  Publication

  • J. Chróścielewski
  • M. Rucka
  • K. Wilde
  • W. Witkowski

  - Archives of Civil Engineering - Year 2009

  W pracy przedstawiono sformułowanie wielowęzłowego elementu spektralnego oraz odpowiedniego schematu całkowania ukierunkowanego na problem propagacji fal w kratownicach przestrzennych o dowolnej geometrii. Zaproponowane podejście nie ogranicza liczby węzłów w elemencie kratowym. Porównawcze rozwiązania numeryczne przeprowadzono dla konstrukcji idealnej (w stanie nieuszkodzonym) oraz dlakonstrukcji z miejscową nieregularnością w...

• Mesoscopic modelling of strain localization in concrete

  Publication

  • Ł. Skarżyński
  • J. Tejchman

  - Archives of Civil Engineering - Year 2009

  Artykuł omawia obliczenie lokalizacji odkształceń w elementach betonowych poddanych zginaniu. Obliczenia wykonano dla betonu na poziomie mezo przy zastosowaniu modelu zniszczeniowego z degradacją sztywności rozszerzonego o nielokalność. Zbadano wpływ zagęszczenia kruszywa, wielkość kruszywa, kształtu kruszywa oraz długości charakterystycznej na szerokość lokalizacji.

Year 2023

• FEM modelling of screw displacement pile interaction with subsoil

  Publication

  • P. Więcławski
  • A. Krasiński

  - Archives of Civil Engineering - Year 2023

  Predicting the-settlement characteristics of piles is an important element in the designing of pile foundations. The most reliable method in evaluating pile-soil interaction is the static load test, preferably performed with instrumentation for measuring shaft and pile base resistances. This, however, is a mostly post-implementation test. In the design phase, prediction methods are needed, in which numerical simulations play an...

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• Influence of cyclic frozen and defrost on mechanical properties of polytetrafluoroethylene (PTFE)-coated woven fabrics

  Publication

  • A. Ambroziak
  • P. Kłosowski

  - Archives of Civil Engineering - Year 2023

  This research aims to determine the influence of the cyclic process of freezing and defrosting on the mechanical properties of the chosen glass fibres and PTFE-coated woven fabrics. The specimens were subjected to freezing at about −20 °C for 4 h and thawing by full immersion into the water at about +20 °C for 4 h. The fabric samples after 25 and 50 frozen cycles were air-dried at room temperature for one week and then subjected...

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• Influence of soil anisotropic stiffness on the deformation induced by an open pit excavation.

  Publication

  • K. Lisewska
  • M. Cudny

  - Archives of Civil Engineering - Year 2023

  In this paper, the problem of deformation induced by an open pit excavation in anisotropic stiff soils is analysed by FE modelling. The presented research is focused on the influence of material model with anisotropic stiffness on the accuracy of deformation predictions as compared with the field measurements. A new hyperelastic-plastic model is applied to simulate anisotropic mechanical behaviour of stiff soils. It is capable...

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• Influence of water soaking on the ultimate tensile strength of polyester-based coated woven fabrics

  Publication

  • A. Ambroziak
  • P. Kłosowski

  - Archives of Civil Engineering - Year 2023

  This research aims to determine the influence of water-soaking on polyester-based coated woven fabrics for ultimate tensile strength and elongation at break under uniaxial tensile tests. The paper begins with a short survey of literature concerning the investigation of the determination of coated woven fabric properties. The authors carried out the uniaxial tensile tests with an application of a flat grip to establish the values...

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• Modeling the effect of electric vehicles on noise levels in the vicinity of rural road sections

  Publication

  • M. Hałucha
  • J. Bohatkiewicz
  • P. Mioduszewski

  - Archives of Civil Engineering - Year 2023

  Numerous European countries experience a steady increase in the share of electric (EV) and hybrid electric (HEV) vehicles in the traffic stream. These vehicles, often referred to as low- or zero-emission vehicles, significantly reduce air pollution in the road environment. They also have a positive effect on noise levels in city centers and in the surroundings of low-speed roads. Nevertheless, issues related to modeling noise from...

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• Monte Carlo simulations of the fracture resistance degradation of asphalt concrete subjected to environmental factors

  Publication

  • C. Szydłowski
  • Ł. Smakosz
  • M. Stienss
  • J. Górski

  - Archives of Civil Engineering - Year 2023

  The paper presents the results of laboratory tests of SCB (semi-circular beam) samples of asphalt concrete, subjected to the destructive effect of water and frost as well as the aging processes. The determined values of material parameters show significant dispersions, which makes the design of mixtures difficult. Statistical analysis of the test results supplemented by computer simulations made with the use of the proprietary...

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Year 2024

• Importance of sign conventions on analytical solutions to the wave-induced cyclic response of a poro-elastic seabed

  Publication

  • W. Magda

  - Archives of Civil Engineering - Year 2024

  This paper discusses the influence of different sign conventions for strains and stresses, i.e. the solid mechanics sign convention and the soil mechanics sign convention, on the form of governing partial differential equations (the static equilibrium equations and the continuity equation) used to describe the wave-induced cyclic response of a poro-elastic seabed due to propagation of a sinusoidal surface water-wave. Some selected...

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Year 2019

• Mechanical Properties of Aluminium Bracket Strengthening

  Publication

  • A. Ambroziak

  - Archives of Civil Engineering - Year 2019

  The aim of the research is laboratory investigation of aluminium brackets employed to fasten lightweight curtain walls to building facilities. Tensile loads perpendicular to end plates (vertical) were applied here. The author focused on the solutions intended to increase the load-carrying capacity of aluminium brackets applying the plain washer form A (DIN 125; ISO 7089), plain washer with an outer diameter about 3d (DIN 9021;...

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Year 2016

• 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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