Nasze serwisy używają informacji zapisanych w plikach cookies. Korzystając z serwisu wyrażasz zgodę na używanie plików cookies zgodnie z aktualnymi ustawieniami przeglądarki, które możesz zmienić w dowolnej chwili. Więcej informacji odnośnie plików cookies.

Obowiązek informacyjny wynikający z Ustawy z dnia 16 listopada 2012 r. o zmianie ustawy – Prawo telekomunikacyjne oraz niektórych innych ustaw.

Wyłącz komunikat

 
 

Logowanie

Logowanie za pomocą Centralnej Usługi Uwierzytelniania PRz. Po zakończeniu pracy nie zapomnij zamknąć przeglądarki.

Budownictwo i Inżynieria Środowiska

Budownictwo i Inżynieria Środowiska
2015.165, DOI: 10.7862/rb.2015.165

Issues of alternating load in design of cold-formed steel frames with lap joints

Szymon SWIERCZYNA, Walter WUWER

DOI: 10.7862/rb.2015.165

Abstract

The paper raises the issues of alternating loads in designing of cold-formed steel frames with blind bolt lap joints. Based on own research and information found in the literature pointed out the need to develop the procedures for calculating such connections, taking into account their actual behaviour, i.e. according to proper hysteresis loops. Presented also the method of determining of nonlinear force-displacement (F-d) and moment-rotation (M-f) characteristics describing the behaviour of a single-cut connections of cold-formed sections with blind fasteners of the type BOM [1], loaded in one direction. The proposed formulas are based on previously unpublished research results and allow for determination of mentioned dependencies on the basis of selected physical parameters of such connections. The curves of the relationships F-d and M-f obtained from the proposed formulas were compared in graphs with experimental curves obtained during the tests of elements in which connections has been loaded in both one direction and alternately. As a conclusion, the predicted directions for further research are presented.

Full text (pdf)

References

[1]    https://www.alcoa.com/global/en/products/product.asp?prod_id=884 [access: 16 April 2015].

[2]    Wuwer W., Kowolik B. Thin-walled frames with semi-rigid joints. VIIth Symposium in the series: New Achievements of Science and Technology in Construction: Shaping of Structures, Tension Structures, Structures with Corrugated Sheets. Proceedings pp. 355-366. Rzeszów 2005, (in Polish).

[3]    Wuwer W., Kowolik B. The rigidity of flexible lap-joints subjected to complex loads. Proceedings of the XIth International Conference on Metal Structures (ICMS-2006): Progress in Steel, Composite and Aluminium Structures, Rzeszow, Poland, 21-23 June, 2006, pp. 192-193.

[4]    Wuwer W. The behaviour and design of lap-joints in thin-walled bar constructions. Advanced Steel Construction an International Journal, Hong Kong, USA, Italy; Vol. 4, Number 1, March 2008, pp. 59-83.

[5]    Wuwer W., Kowolik B. Design of single lap joints in cold-formed steel frames. Konstrukcje Stalowe, nr 2/2009, pp. 34-40 (in Polish).

[6]    Swierczyna S., Wuwer W. Thin-walled latticed frame with semi-rigid bolted joints. Proceedings of the 12th International Conference on Metal Structures Wrocław, Poland, IABSE, June 2011, pp. 256-257; CD – Wrocław University of Technology.

[7]    Zadanfarrokh F. Analysis and design of bolted connections in cold formed steel members. PhD Thesis. Department of Civil Engineering, University of Salford, 1991.

[8]    Dubina D., Stratan A., Ciutina A., Fulop L., Nagy Z. Strength, stiffness and ductility of cold-formed steel bolted connections. Connections in Steel Structures V. Amsterdam 2004, pp 263-272.

[9]    Ślęczka L. Shaping and analysis of selected steel frame joints subjected to variable actions. Oficyna Wydawnicza Politechniki Rzeszowskiej. Rzeszów 2013 (in Polish).

[10]  Bródka J., Kozłowski A. Stiffness and load resistance of semi-rigid joints. Oficyna Wydawnicza Politechniki Rzeszowskiej. Rzeszów 1996 (in Polish).

[11]  Zamorowski J. Spatial bar structures with geometric imperfection and  flexible nodes. Habilitation Thesis. Wydawnictwo Politechniki Śląskiej. Gliwice 2013 (in Polish).

[12]  Wuwer W. Flexible joints with blond bolts in thin-walled bar constructions. Habilitation Thesis. Zeszyty Naukowe Politechniki Śląskiej Nr 1710 (z. 105). Gliwice 2006 (in Polish).

[13]  EN 1993-1-8:2005 Eurocode 3: Design of steel structures - Part 1-8: Design of joints.

[14]  Wuwer W., Zamorowski J., Swierczyna S. Lap joint stiffness according to Eurocode EC3 and experimental investigations results. Archives of Civil and Mechanical Engineering, ACME17, Elsevier 2012.

[15]  Swierczyna S., Wuwer W. Preliminary investigation on bering resistance of blind bolt lap joints. Journal of Civil Engineering, Environment and Architecture, vol. XXX, issue 60 (no 2/2013), ISSN 2300-5130, Oficyna Wydawnicza Politechniki Rzeszowskiej, pp. 243-252 (in Polish).

[16]  ECCS TC7 TWG 7.10. Connections in Cold-formed Steel Structures. The testing of connections with mechanical fasteners in steel sheeting and sections. ECCS No 124, 2nd edition, 2009.

[17]  Słowiński K. Investigation of closely spaced members with flexible joints under axial compression. PhD Thesis. Silesian University of Technology, Gliwice 2013 (in Polish).

[18] EN 1993-1-8:2006 Eurocode 3: Design of steel structures. Part 1.8 : Design of joints.

[19]  Sato A., Hong J-K., Uang C-M. Cyclic modeling of mold-formed steel special bolted moment frame connections. Journal of Structural Engineering, ASCE, 2008 [submitted for publication].

About this Article

TITLE:
Issues of alternating load in design of cold-formed steel frames with lap joints

AUTHORS:
Szymon SWIERCZYNA (1)
Walter WUWER (2)

AUTHORS AFFILIATIONS:
(1) Silesian University of Technology
(2) Katowice School of Technology

JOURNAL:
Budownictwo i Inżynieria Środowiska
2015.165

KEY WORDS AND PHRASES:
cold-formed steel frames, lap joints, blind fasteners, alternating load, semi-rigid joints, stiffness of joints

FULL TEXT:
http://doi.prz.edu.pl/pl/pdf/biis/388

DOI:
10.7862/rb.2015.165

URL:
http://dx.doi.org/10.7862/rb.2015.165

COPYRIGHT:
Publishing House of Rzeszow University of Technology Powstańców Warszawy 12, 35-959 Rzeszow

POLITECHNIKA RZESZOWSKA im. Ignacego Łukasiewicza; al. Powstańców Warszawy 12, 35-959 Rzeszów
tel.: +48 17 865 11 00, fax.: +48 17 854 12 60
Administrator serwisu: