Progressive collapsed zone extent estimation in two-way slab floors by yield line analysis

2014 ◽  
Vol 66 (13) ◽  
pp. 685-696 ◽  
Author(s):  
Alireza Pachenari ◽  
Abolghassem Keramati
Keyword(s):  
Yield Line ◽  
Line Analysis

Yield Line Analysis of Square Footings

1979 ◽  
Vol 105 (11) ◽  
pp. 1355-1359
Author(s):  
Satish C. Jain ◽  
Kiran K. Singh ◽  
Prabhas K. Maity
Keyword(s):  
Yield Line ◽  
Line Analysis

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.

scholarly journals Automatic yield-line analysis of slabs using discontinuity layout optimization

2014 ◽  
Vol 470 (2168) ◽  
pp. 20140071 ◽  
Author(s):  
Matthew Gilbert ◽  
Linwei He ◽  
Colin C. Smith ◽  
Canh V. Le
Keyword(s):  
Effective Means ◽  
Maximum Load ◽  
Layout Optimization ◽  
Benchmark Problems ◽  
Potential Yield ◽  
Yield Line ◽  
The Past ◽  
Critical Yield ◽  
Line Patterns ◽  
Line Analysis

The yield-line method of analysis is a long established and extremely effective means of estimating the maximum load sustainable by a slab or plate. However, although numerous attempts to automate the process of directly identifying the critical pattern of yield-lines have been made over the past few decades, to date none has proved capable of reliably analysing slabs of arbitrary geometry. Here, it is demonstrated that the discontinuity layout optimization (DLO) procedure can successfully be applied to such problems. The procedure involves discretization of the problem using nodes inter-connected by potential yield-line discontinuities, with the critical layout of these then identified using linear programming. The procedure is applied to various benchmark problems, demonstrating that highly accurate solutions can be obtained, and showing that DLO provides a truly systematic means of directly and reliably automatically identifying yield-line patterns. Finally, since the critical yield-line patterns for many problems are found to be quite complex in form, a means of automatically simplifying these is presented.

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