Large displacement elastic analysis of planar steel frames with flexible beam-to-column connections under static loads by corotational beam-column element

  • Nguyen Van Hai Faculty of Civil Engineering, Ho Chi Minh City University of Technology, Vietnam National University Ho Chi Minh City, 268 Ly Thuong Kiet street, District 10, Ho Chi Minh city, Vietnam
  • Doan Ngoc Tinh Nghiem Faculty of Civil Engineering, Ho Chi Minh City University of Technology, Vietnam National University Ho Chi Minh City, 268 Ly Thuong Kiet street, District 10, Ho Chi Minh city, Vietnam
  • Le Van Binh Faculty of Civil Engineering, Ho Chi Minh City University of Technology, Vietnam National University Ho Chi Minh City, 268 Ly Thuong Kiet street, District 10, Ho Chi Minh city, Vietnam
  • Le Nguyen Cong Tin Faculty of Civil Engineering, Mientrung University of Civil Engineering, 24 Nguyen Du street, Tuy Hoa city, Phu Yen province, Vietnam
  • Ngo Huu Cuong Faculty of Civil Engineering, Ho Chi Minh City University of Technology, Vietnam National University Ho Chi Minh City, 268 Ly Thuong Kiet street, District 10, Ho Chi Minh city, Vietnam

Abstract

This paper presents the elastic large-displacement analysis of planar steel frames with flexible connections under static loads. A corotational beam-column element is established to derive the element stiffness matrix considering the effects of axial force on bending moment (P-Δ effect), the additional axial strain caused by end rotations and the nonlinear moment – rotation relationship of beam-to-column connections. A structural nonlinear analysis program is developed by MATLAB programming language based on the modified spherical arc-length algorithm in combination with the sign of displacement internal product to automate the analysis process. The obtained numerical results are compared with those from previous studies to prove the effectiveness and reliability of the proposed element and program.

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Published
31-08-2019
How to Cite
Hai, N. V., D. N. T. Nghiem, L. V. Binh, L. N. C. Tin, and N. H. Cuong. “Large Displacement Elastic Analysis of Planar Steel Frames With Flexible Beam-to-Column Connections under Static Loads by Corotational Beam-Column Element”. Journal of Science and Technology in Civil Engineering (STCE) - NUCE, Vol. 13, no. 3, Aug. 2019, pp. 85-94, doi:10.31814/stce.nuce2019-13(3)-08.
Section
Research Papers