Wyniki wyszukiwania dla: CHORDS OF THE TRUSSES

• Trusts & Trustees

  Czasopisma

  ISSN: 1363-1780 , eISSN: 1752-2110

• Influence of nodes with positive eccentricity on load-carrying capasity of truss' top chords in trusses made of welded cold-formed members.

  Publikacja

  • M. Gordziej-Zagórowska
  • E. Urbańska-Galewska

  - Rok 2014

  In order to establish the influence of eccentric crossing of truss members on the load-carrying capacity of the folded chord of a hat-section truss, a research model was created and preliminary numerical analysis of the truss was performed with the use of Marc Mentat programme. Distorial instability of crossheads caused by deviation of loose (unmounted) channel section web’s bends was observed. Due to the slenderness of the section’s...

• The influence of brace to chord rotational connection stiffness on stability of the truss

  Publikacja

  • M. Krajewski

  - Bulletin of the Polish Academy of Sciences-Technical Sciences - Rok 2025

  The paper is devoted to the numerical analysis of the roof truss subjected to upward wind loading and braced at the tensioned top chord. The linear buckling analysis were performed for the beam and shell model of the structure. As the result the influence of rotational connection stiffness between the brace and the top chord on the truss stability was appointed. The biaxial strength testing machine was used to conduct the experimental...

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

  Publikacja

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

  - Archives of Civil Engineering - Rok 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...

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• Comparison of classical Winter's bracing requirements of compressedtruss chord with stability analysis of 3D truss-model

  Publikacja

  • P. Iwicki

  - Rok 2009

  Most code requirements concerning bracing are based on principles developed by Winter. The present research is devoted tostudy a lateral buckling of truss with linear elastic side supports. The classical Winter's model of truss chord in the case ofout of the truss plane buckling is compared with nonlinear analysis of 3D truss model. Full bracing condition, that permitsthe truss chord to support load level corresponding to an unbraced...

• Stability of trusses with linear elastic side-supports

  Publikacja

  • P. Iwicki

  - THIN-WALLED STRUCTURES - Rok 2007

  The present research is devoted to study of a lateral buckling of truss with linear elastic side supports. The elastic support reaction in relation to force in compressed chord and coefficient of buckling length related to side support distance are also calculated. The effect of slope of side support on limit force is also considered. The nonlinear analysis of two roof trusses are carried out. The results are compared to design...

• Stability of roof trusses stiffened by corrugated sheets

  Publikacja

  • P. Iwicki

  - Rok 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...

• Brussels Studies

  Czasopisma

  ISSN: 2031-0293

• The validation process of truss model with joint eccentricities

  Publikacja

  • M. Gordziej-Zagórowska
  • E. Urbańska-Galewska
  • Ł. Pyrzowski

  - Rok 2018

  Nowadays, due to the technological reasons in modern lightweight steel trusses, fabricated from cold-formed sections, positive eccentricities appear in the truss nodes, to induce additional forces truss chords. In order to account for the real load-carrying capacity of truss node area the steel structure research was conducted in scale 1:1. As a result of experimental research, the forms of deformation and strains of the walls...

• Stability of roof trusses stiffened by trapezoidal sheeting and purlins

  Publikacja

  • N. Korcz-Konkol
  • P. Iwicki

  - MATEC Web of Conferences - Rok 2018

  In the article linear buckling analysis of a set of steel trusses braced by purlins and trapezoidal sheeting are conducted. The buckling load factor due to the height of a corrugated sheeting profile is investigated in parametric studies. The minimal height of trapezoidal sheeting required for preventing the sheeting and chords of the trusses against the buckling is obtained. Two groups of models are considered: “axial” model as...

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