scholarly journals Comparative Study of Open Frame Structure Modeling with Diagonal Bracing at the Integrated Laboratory of Institut Teknologi Kalimantan

2021 ◽  
Vol 5 (1) ◽  
pp. 22-36
Author(s):  
Christianto Credidi Septino Khala ◽  
Andina Prima Putri ◽  
Oryza Lhara Sari
Keyword(s):  
Comparative Study ◽  
Structural Properties ◽  
Internal Force ◽  
Frame Structure ◽  
Structure Modeling ◽  
Brick Wall ◽  
Analysis Program ◽  
Original Design ◽  
Structural Element ◽  
Usual Model

Generally, brick wall (hebel) is considered as non-structural element, which never be counted to bear structural load. But, if carefully calculated, brick walls take part in structure load bearing. In the purpose of reducing the main structural element properties, the brick wall needs to be considered in bearing structural load. In this article, the brick walls modelled as compressive bracings. Using the structure analysis program, the model showed some significant differences in terms of internal force. From the analysis, the differences of moment, shear, axial and torsional force between open frame model (usual model, OF) and compressive bracing (CB) model were 38.17 kN.m; 58.03 kN; 181.75 kN dan 44.18 kN.m, respectively, where the first model had the bigger numbers than the latter model. Displacement of OF model was quite larger than CB model, with the value of difference was up to 85.35% for the X direction structures, and 70.83% for the Y direction. Final properties used for the design are smaller compared than original design, 30/60 to 40/60 for the beams, 50/50 for the columns with the different reinforcements 16-D22 for the second model compared to 20-D22 for the first one. The depth of slab on the second model was 180 mm, slightly smaller than the first model, 190 mm. It can be concluded that using compressive bracing model, structural properties of ITK Integrated Laboratory Building may greatly be reduced, compared to OF model.

A practical method for incorporating flexible connections in plane frame analysis

1995 ◽  
Vol 22 (5) ◽  
pp. 871-882 ◽  
Author(s):  
D. S. K. Lo ◽  
S. F. Stiemer
Keyword(s):  
Frame Analysis ◽  
Practical Method ◽  
Internal Force ◽  
Frame Structure ◽  
Analysis Program ◽  
Practical Application ◽  
Plane Frame ◽  
Ideal Tool ◽  
Flexible Connections ◽  
The Moment

A practical method for incorporating realistic flexible connections in plane frame analysis, including the effect of connection sizes and shear deflection, is presented. The general algorithm can be easily implemented in a standard plane frame analysis program and, once implemented, it can be an ideal tool for production work in the steel industry. Connection stiffness is programmed directly into the analysis using the moment–rotation equations developed by Frye and Morris or may be entered separately as data. Practical application of this method of analysis is demonstrated by modifying a standard plane frame analysis program to include the effect of flexible connections. Solutions obtained using this modified program, CPlane, were verified against the findings of Moncarz and Gerstle. A simple plane frame structure was analyzed under various lateral load intensities for different connection assumptions. It was found that the inclusion of connection behavior significantly altered the internal force distribution and design of the structure. Key words: connections, matrix frame analysis, moment–rotation relations.

Research on Semi-Rigid Connections Calculation of Laminated Wood Frame Beam-Column

2013 ◽  
Vol 438-439 ◽  
pp. 743-748
Author(s):  
Zhi Hui Bian ◽  
Tie Cheng Wang ◽  
Shi Yong Zhao ◽  
Su Juan Fu
Keyword(s):  
Internal Force ◽  
Frame Structure ◽  
Design Calculation ◽  
Original Design ◽  
Small Deflection ◽  
Rigid Connection ◽  
Rigid Rod ◽  
Wood Frame ◽  
Steel Bolts ◽  
Force Calculation

Generally laminated wood frame beam-column uses the additional steel bolts to connect, its performance is a semi-rigid characteristics under the loads. In the small deflection assumption conditions, this paper is based on the theory of semi-rigid connection, derived the semi-rigid rod end stiffness matrix and moment calculation formula of laminated wood structural frame beam-column element under the arbitrary loads. By SAP2000 the type of flexible coefficient is adopted to establish finite element numerical analysis based on 1# wood frame structure-building of science and technology R&D center in Hebei province. The result shows that each component is basically the same with the original design internal forces while the flexible coefficient is range of 0.41 to 0.82, the framework of semi-rigid connections in the actual calculation should be considered. The internal force calculation method is proposed, which provide a basis for wood design calculation that takes into account the semi-rigid connections.

Experimental Research and Finite Element Analysis on Behavior of Steel Frame with Semi-Rigid Connections

2010 ◽  
Vol 168-170 ◽  
pp. 553-558
Author(s):  
Feng Xia Li ◽  
Bu Xin
Keyword(s):  
Architectural Design ◽  
Plastic Hinge ◽  
Steel Frames ◽  
Seismic Energy ◽  
Internal Force ◽  
Steel Frame ◽  
Frame Structure ◽  
Element Analysis ◽  
Rigid Deformation ◽  
Steel Frame Structure

Most steel beam-column connections actually show semi-rigid deformation behavior that can contribute substantially to overall displacements of the structure and to the distribution of member forces. Steel frame structure with semi-rigid connections are becoming more and more popular due to their many advantages such as the better satisfaction with the flexible architectural design, low inclusive cost and environmental protect as well. So it is very necessary that studying the behavior of those steel frame under cyclic reversal loading. On the basics of connections experiments the experiment research on the lateral resistance system of steel frame structure has been completed. Two one-second scale, one-bay, two-story steel frames with semi-rigid connections under cyclic reversal loading. The seismic behavior of the steel frames with semi-rigid connections, including the failure pattern, occurrence order of plastic hinge, hysteretic property and energy dissipation, etc, was investigated in this paper. Some conclusions were obtained that by employing top-mounted and two web angles connections, the higher distortion occurred in the frames, and the internal force distributing of beams and columns was changed, and the ductility and the absorbs seismic energy capability of steel frames can be improved effectively.

Comparative study of the spectral and structural properties of EuAl3(BO3)4 single crystals with different morphologies

2017 ◽  
Vol 59 (12) ◽  
pp. 2423-2429
Author(s):  
T. N. Fursova ◽  
V. V. Kedrov ◽  
O. G. Rybchenko ◽  
S. Z. Shmurak ◽  
E. B. Yakimov ◽  
...  
Keyword(s):  
Comparative Study ◽  
Single Crystals ◽  
Structural Properties

A comparative study of functional and structural properties of starch extracted from Dioscorea rotundata and Colocasia esculenta

2016 ◽  
Vol 68 (7-8) ◽  
pp. 771-777 ◽  
Author(s):  
Adewoyin Martin Ogunmolasuyi ◽  
Evans C. Egwim ◽  
Mary A. Adewoyin ◽  
Oluwapemi Awoyinka
Keyword(s):  
Comparative Study ◽  
Structural Properties ◽  
Colocasia Esculenta ◽  
Dioscorea Rotundata
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