Strength analysis of RHS double chord joints with separated chords

1985 ◽  
Vol 12 (2) ◽  
pp. 370-381 ◽  
Author(s):  
R. M. Korol ◽  
H. S. Mitri
Keyword(s):  
Strength Analysis ◽  
Failure Model ◽  
Hollow Section ◽  
Geometrical Properties ◽  
Yield Line ◽  
Yield Line Theory ◽  
Plastic Strength ◽  
Theory Of Plates ◽  
Line Theory ◽  
Good Agreement

A plastic failure model that is based on the yield line theory of plates is developed to provide a means for predicting the plastic strength of double chord RHS K-joints with separated chords. The model accounts for both localized bending of the chord face and shearing of its inner and outer walls in the gap between the mated diagonals.The results of a series of 24 tests conducted on RHS twin shear beams are reported. Predictions of joint strength were compared with experimental results and were found to be generally in good agreement for both the RHS twin shear beams and isolated K-joint specimens of square hollow section from previous work. A study on the effect that varying the geometrical properties of the joint has on its strength is also presented. Key words: experiments, K-joints, mechanism, plastic analysis, rectangular hollow sections, steel, yield lines.

scholarly journals Flexural Behavior of Posttensioned Flat Plates Depending on Tendon Layout

2016 ◽  
Vol 2016 ◽  
pp. 1-11 ◽  
Author(s):  
Min Sook Kim ◽  
Young Hak Lee
Keyword(s):  
Maximum Load ◽  
Flexural Behavior ◽  
Test Results ◽  
Flat Plates ◽  
Yield Line ◽  
Yield Line Theory ◽  
Posttensioned Concrete ◽  
Line Theory ◽  
Line Analysis ◽  
Good Agreement

This paper discusses the experimental results on the flexural behavior and deflections of posttensioned concrete flat plates depending on tendon layout. One reinforced concrete flat plate and two posttensioned concrete flat plates were manufactured and tested. One-way posttensioning layout and two-way posttensioning layout were considered in this paper. The load-deflection behavior and modes of crack are presented from the test results. Posttension systems effectively controlled crack and deflection. One-way and two-way posttensioning layouts both showed similar maximum load. However, serviceability improved with two-way posttensioning layout compared to one-way posttensioning layout. Also, the yield-line theory was applied to predict the ultimate load for the posttensioned flat plates. The comparison between the test results and estimation by yield-line analysis generally showed good agreement.

Limit Analysis and Yield-Line Theory

1968 ◽  
Vol 35 (2) ◽  
pp. 357-362 ◽  
Author(s):  
Antoni Sawczuk ◽  
P. G. Hodge
Keyword(s):  
Limit Analysis ◽  
Single Point ◽  
Point Load ◽  
Simply Supported ◽  
Yield Line ◽  
Yield Line Theory ◽  
Line Theory ◽  
The Relationship ◽  
Line Analysis ◽  
General Method

The relationship between limit analysis and yield-line analysis is investigated. Attention is restricted to simply supported, isotropic slabs subjected to single-point loadings. It is found that conventional yield-line analyses quite often give substantial overestimates of the carrying capacity. A general method is formulated for finding the yield-point load, and various examples are considered.

Yield-line theory and plasticity

1972 ◽  
Vol 24 (78) ◽  
pp. 37-42
Author(s):  
D. H. Clyde
Keyword(s):  
Yield Line ◽  
Yield Line Theory ◽  
Line Theory

Mechanical Behavior Analysis of the Unbonded Prestressed Concrete Slabs with Openings Strengthened by Different Methods

2010 ◽  
Vol 163-167 ◽  
pp. 1354-1358
Author(s):  
Xia Cao ◽  
Ling Zhi Jin ◽  
Qiang Fu ◽  
Hong Mei Zhou ◽  
Ya Qiong Liu ◽  
...  
Keyword(s):  
Experimental Data ◽  
Mechanical Behavior ◽  
Bearing Capacity ◽  
Prestressed Concrete ◽  
Concrete Slabs ◽  
Uniform Load ◽  
Yield Line ◽  
Yield Line Theory ◽  
Line Theory ◽  
Lift Off

Based on the contrast experiments of unbonded prestressed concrete slabs with openings subjected to uniform load strengthened by different methods, this paper investigates and analyzes the appearance and the development of cracks, deflections, bearing capacity of the unbonded prestressed concrete slabs that are with strengthening steel and with hidden beams. According to the experimental failure mode of the slabs, prestressed concrete slabs with openings by yield line theory considering the conditions to enhance the contribution of hidden beam and the strengthening steel. Compared with the experimental data, this paper puts forward some bearing capacity lift-off effect of the slabs under different strengthened methods.

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