Structural Behavior of Precast Reinforced Concrete Shear Walls with Large Diameter Bars

2019 ◽  
Vol 116 (5) ◽  
Author(s):  
Xin Chen ◽  
Ming Liu ◽  
Fabio Biondini ◽  
Gianpaolo Rosati
Keyword(s):  
Reinforced Concrete ◽  
Large Diameter ◽  
Shear Walls ◽  
Structural Behavior

scholarly journals Analytical Evaluation of Reinforced Concrete Pier and Cast-in-Steel-Shell Pile Connection Behavior considering Steel-Concrete Interface

2016 ◽  
Vol 2016 ◽  
pp. 1-14 ◽  
Author(s):  
Jiho Moon ◽  
Dawn E. Lehman ◽  
Charles W. Roeder ◽  
Hak-Eun Lee ◽  
Tae-Hyung Lee
Keyword(s):  
Reinforced Concrete ◽  
Large Diameter ◽  
Structural Behavior ◽  
Steel Shell ◽  
Fe Model ◽  
Fe Method ◽  
Design Guideline ◽  
Composite Action ◽  
Embedment Length ◽  
The Cost

The seismic design of bridges may require a large-diameter deep pile foundation such as a cast-in-steel-shell (CISS) pile where a reinforced concrete (RC) member is cast in a steel casing. In practice, the steel casing is not considered in the structural design and the pile is assumed to be an RC member. It is partially attributed to the difficulties in evaluation of composite action of a CISS pile. However, by considering benefits provided by composite action of the infilled concrete and the steel casing, both the cost and size of CISS pile can be reduced. In this study, the structural behavior of the RC pier and the CISS pile connection is simulated by using an advanced 3D finite element (FE) method, where the interface between the steel and concrete is also modeled. Firstly, the FE model is verified. Then, the parametric study is conducted. The analysis results suggest that the embedment length and the friction coefficient between the steel casing and the infilled concrete affect the structural behavior of the RC pier. Finally, the minimum embedment length with reference to the AASHTO design guideline is suggested considering the composite action of the CISS pile.

scholarly journals U Tipi Plan Düzensizliği olan Betonarme Yapılarda Perde Yeri Seçiminin Yapısal Davranışa Etkisinin İrdelenmesi

2019 ◽  
Vol 2 (2) ◽  
pp. 284-294
Author(s):  
Mehmet HOCAOĞLU ◽  
Necati MERT ◽  
Hüseyin KASAP
Keyword(s):  
Reinforced Concrete ◽  
Shear Walls ◽  
Structural Behavior ◽  
Earthquake Risk ◽  
Reinforced Concrete Buildings ◽  
Cross Sectional ◽  
Earthquake Loads ◽  
Concrete Buildings ◽  
Frame Systems ◽  
Earthquake Zone

Damage to structures may occur due to irregularities and other effects on reinforced concrete structures. Due to the earthquake zone, the buildings to be designed in our country should be designed according to the earthquake loads. In this study, the effects of the location and directions of the shear walls on the earthquake loads in the case of discontinuity in reinforced concrete buildings were examined. In this study, the effect of curtain placement on structural behavior in reinforced concrete buildings with U type plan irregularity was investigated.In order to determine the behavior of the structure under the effect of the earthquake and to find the relevant cross-sectional effects, the regular or irregularity of the structure of the structure of the structure is significantly effective. Irregularities present in the design cause further strain of the carrier elements. With the increase in the number of floors in earthquake risk regions, curtains are needed in order to ensure sufficient rigidity and strength in the frame systems and to limit the floor displacements. When the shear walls are used together with the frame system in a conveyor system, their stiffness is larger than the columns and they meet a significant part of their horizontal loads such as earthquake and wind.In this study, the effect of shear walls placement on structural behavior in reinforced concrete buildings with U-type irregularity was investigated. For this purpose, 7 models, each of which are 5,10,15 stories and one of which are reference models, have been examined on the irregularity and behavior of the structure in different shear walls settlements. The results obtained by using the İDECAD V7 program were compared with the results analyzes were made using the principles of TBDY 2018 and the results were reached.

Numerical Study of the Behavior of Reinforced Concrete Shear Walls during Fire Exposure

2011 ◽  
Vol 101-102 ◽  
pp. 644-647
Author(s):  
Gui Rong Liu ◽  
Fu Lai Qu ◽  
Yu Pu Song ◽  
Chang Yong Li
Keyword(s):  
Reinforced Concrete ◽  
Geometric Nonlinearity ◽  
Numerical Study ◽  
Shear Walls ◽  
Order Effect ◽  
Structural Behavior ◽  
Fire Exposure ◽  
Simple Method ◽  
Axial Forces ◽  
Sectional Analysis

A simple method based on the well-known sectional analysis approach is presented to trace the structural behavior of reinforced concrete (RC) shear walls exposed to fire. It is similar to the approaches described in the existing literature but it does not require computations of moment-curvature curve group. This method can take into account material nonlinearity by use of the coupling constitutive relation of materials. Moreover, the geometric nonlinearity is considered by taking account the second-order effect of axial forces. The predictions of the proposed method are validated using experimental and analytical studies.

THE EFFECT OF PLACEMENT OF L-TYPE SHEAR WALLS IN RC STRUCTURES ON STRUCTURAL BEHAVIOR

2021 ◽  
Vol 0 (15) ◽  
pp. 0-0
Author(s):  
Muhammet Zeki ÖZYURT
Keyword(s):  
Reinforced Concrete ◽  
Natural Vibration ◽  
Shear Walls ◽  
Shear Wall ◽  
Structural Behavior ◽  
Structural System ◽  
Reinforced Concrete Structure ◽  
Vibration Period ◽  
Peak Displacement ◽  
Ground Floor

Aim: In this study; In this study, it was investigated how the symmetrical and different positions of the L-type shear walls on the floor plan affect the structural behavior in the reinforced concrete residential and office buildings with a symmetrical structural system. Method: In the study, three different carrier system types were created for a symmetrical reinforced concrete structure with 5 floors (ground floor + 4 normal floors), according to the shear wall layouts, and on a total of 12 different models (ground floor heights of 2.5 m, 3.0 m, 4.0 m and 5 m) was examined. Results: It was determined that as the ground floor height increased, the natural vibration period, soft floor irregularity coefficient and peak displacement value also increased in all models examined in the study. It has been observed that the natural vibration period is greater when the shear walls are located at the corners of the outer axles than if they are located in the middle of the outer axles and in the inner axles. It has been observed that in all cases of ground floor height, the number of soft floor irregularities in the corner shear wall layout model on the outer axes is approximately 0.2% higher than in the Type 2 situation. Conclusion: In this study, for the 5-storey reinforced concrete structures used for workplace and residential purposes, whose structural system is determined symmetrically so that torsional irregularity does not occur, the results obtained by changing the placement of L-section shear walls in the plan, drew attention to the fact that the position of the shear wall affects the structural behavior. For buildings with a ground floor height less than or equal to the normal floors, the most appropriate shear wall placement is when the shear walls are on the outer axes and in the corner. For buildings with a ground floor height higher than normal floors, the most appropriate shear wall placement takes place on the inner axes of the building.

Analytical study of tessellated structural-architectural reinforced concrete shear walls

2021 ◽  
Vol 244 ◽  
pp. 112768
Author(s):  
Mohammad Syed ◽  
Mohammad Moeini ◽  
Pinar Okumus ◽  
Negar Elhami-Khorasani ◽  
Brandon E. Ross ◽  
...  
Keyword(s):  
Reinforced Concrete ◽  
Analytical Study ◽  
Shear Walls
Sign in / Sign up

Export Citation Format

Share Document