Nonlinear Finite Element Analysis of Shearwalls with Various Types of Openings

2011 ◽  
Vol 194-196 ◽  
pp. 1900-1903
Author(s):  
Baek Il Bae ◽  
Hyun Ki Choi ◽  
Chang Sik Choi
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Coupling Effect ◽  
Shear Walls ◽  
Nonlinear Finite Element Analysis ◽  
Nonlinear Finite Element ◽  
Structural Safety ◽  
Structural Walls ◽  
Element Analysis ◽  
Wall Area

The installation of new opening is necessary for remodeling project, house merging type. Current structural design code cannot provide the deterministic way for designing the shear walls with openings. So many engineers prefer to retrofit the perforated wall area for the structural safety. For the safe design of retroftitting, for the perforated structural walls, we carried out nonlinear finite element analysis to find the coupling effect of remaing walls. Specifically, many types of shapes were considered and various area of rectangular openings were analyzed. For the effective retrofitting, door shape and such area about 20% of wall is appropriate for retrofitting of reinforced concrete shearwalls.

Nonlinear finite element analysis for structural assessment of existing bridges: network manager experiences

2021 ◽  
Author(s):  
Johan de Boon ◽  
Marco A. Roosen ◽  
Dick G. Schaafsma ◽  
Max A. N. Hendriks
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Nonlinear Finite Element Analysis ◽  
Nonlinear Finite Element ◽  
Public Works ◽  
Sensitivity Analyses ◽  
Structural Safety ◽  
Element Analysis ◽  
Bridge Structures ◽  
Existing Bridges

<p>The Dutch Directorate-General for Public Works and Water Management (Rijkswaterstaat) is assessing its bridges as a part of the major renovation and replacement task of bridge-structures in the Netherlands. For assessments it appears that calculations show that an increasing number of existing bridges no longer comply with current assessment standards or are becoming restricted in their functionality. Complete renovation is costly, results in disruption of traffic, and is not sustainable. The Eurocode permits to demonstrate sufficient safety using a nonlinear finite element analysis (NLFEA). NLFEA offers a possibility to demonstrate additional structural safety of the existing bridge-structures.</p><p>The challenge is to gain confidence that the approach gives reliable results for the structural safety of the considered bridge. Moreover, experience learns that NLFEA demands many choices to be made by Rijkswaterstaat as a client and will not always lead to unambiguous results. These choices concern modelling aspects, applied safety format, load positions, and the required sensitivity analyses. Another question is what conclusions, based on the obtained results of this analysis, can be drawn for similar structures.</p><p>This paper shows how Rijkswaterstaat has dealt with these challenges with case 'Peddemors' and what lessons are learned, all from the viewpoint of a client.</p>

Nonlinear Finite Element Analysis on Steel Reinforced Concrete L-Shaped Short-Shear Wall

2011 ◽  
Vol 94-96 ◽  
pp. 571-574
Author(s):  
Hong Yuan Tang ◽  
Wei Lin
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Reinforced Concrete ◽  
Development Process ◽  
Shear Walls ◽  
Nonlinear Finite Element Analysis ◽  
Nonlinear Finite Element ◽  
Element Analysis ◽  
Finite Element Program ◽  
Steel Reinforced Concrete

This paper uses ANSYS finite element program to do the nonlinear finite element analysis on steel reinforced concrete L-shaped short-shear walls. Through applying the vertical and horizontal load on the model, three typical stages of the whole working period are studied. And the cracking load and deformation regularity in various stages are obtained. The development process of cracks until the specimen damaged is revealed. At last, the development process of crack distribution at different stages is studied.

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