Research on seismic behavior and shear strength of SRHC frame columns

2017 ◽  
Vol 16 (2) ◽  
pp. 349-364 ◽  
Author(s):  
Shansuo Zheng ◽  
Qing Qin ◽  
Yixin Zhang ◽  
Liang Zhang ◽  
Wei Yang
Keyword(s):  
Shear Strength ◽  
Seismic Behavior

The importance of panel zone shear strength on seismic behavior of improved slotted-web beam connections

2017 ◽  
Vol 17 (1) ◽  
pp. 307-318 ◽  
Author(s):  
Mohammad Reza Adlparvar ◽  
Mohammad Ghasem Vetr ◽  
Farshad Ghaffari
Keyword(s):  
Shear Strength ◽  
Seismic Behavior ◽  
Panel Zone

Seismic Design Factors for Steel Moment Frames with Masonry Infills: Part 1

2012 ◽  
Vol 28 (3) ◽  
pp. 1189-1204 ◽  
Author(s):  
Shiv Shanker Ravichandran ◽  
Richard E. Klingner
Keyword(s):  
Shear Strength ◽  
Seismic Behavior ◽  
Pushover Analysis ◽  
Moment Frames ◽  
Steel Moment Frames ◽  
Moment Frame ◽  
Steel Moment Frame ◽  
Masonry Infills ◽  
Open Ground ◽  
Shear Failures

In this two-part work, seismic behavior and design of steel moment frames with masonry infills are investigated systematically. In this first part, the “infill strength ratio” (the ratio of the story shear strength of infills to the story shear strength of the bare frame) is shown to have a fundamental effect on the seismic behavior of an infilled frame. This fundamental effect is demonstrated using pushover analysis of an example steel moment frame with masonry infills in uniformly infilled and open ground story configurations. In general, infill strength ratios greater than about 0.35 are associated with progressive deterioration of seismic performance, leading to story mechanisms concentrated in the lower stories. Greater infill strength ratios can also lead to local shear failures in frame members.

scholarly journals Seismic Behavior of Stone Masonry Joints with ECC as a Filling Material

Materials ◽  
2021 ◽  
Vol 14 (21) ◽  
pp. 6671
Author(s):  
Wei Hou ◽  
Xinghua Dai ◽  
Zheyu Yang ◽  
Hanhuang Huang ◽  
Xiaoli Wang ◽  
...  
Keyword(s):  
Shear Strength ◽  
Seismic Behavior ◽  
Failure Process ◽  
Deformation Energy ◽  
Stone Masonry ◽  
Partial Substitution ◽  
Interface Debonding ◽  
Filling Material ◽  
Test Results ◽  
Residual Shear Strength

This paper investigates the seismic behavior of novel stone masonry joints using ductile engineered cementitious composite (ECC) as a substitute for ordinary mortar. Ten stone masonry joints with different types of mortar/ECC were tested under axial and cyclic loads. The filling materials of mortar joints tested included ordinary mortar, polymer mortar, ECC, and composite mortar with two combination proportions of ECC and ordinary mortar. The test results indicated that ECC specimens exhibited a more stable hysteretic response as well as an improvement in strength, deformation, energy dissipation, and strength degradation. The ECC mortar joints maintained integrity during the entire loading process due to the “self-confinement” effect of ECC. A partial substitution of mortar with ECC could provide effective reinforcement and confinement to prevent mortar failure and peeling, thereby allowing such specimens to approach the seismic performance of ECC specimens. Based on the trend of shear strength variations, a corresponding failure process is defined for ECC/mortar joints under cyclic and axial compressive loads, including four distinct stages: linear elastic, crack-developing stage, interface debonding, and friction sliding. New equations are proposed for predicting the shear strength and residual shear strength of the ECC/mortar joints on the basis of the test results, which are validated in the composite mortar specimens.

Seismic behavior and shear strength of tubed RC short columns

2010 ◽  
Vol 66 (3) ◽  
pp. 385-397 ◽  
Author(s):  
Xuhong Zhou ◽  
Jiepeng Liu
Keyword(s):  
Shear Strength ◽  
Seismic Behavior ◽  
Short Columns

Seismic Behavior of Squat Reinforced Concrete Shear Walls

2002 ◽  
Vol 18 (2) ◽  
pp. 287-308 ◽  
Author(s):  
Pedro A. Hidalgo ◽  
Christian A. Ledezma ◽  
Rodrigo M. Jordan
Keyword(s):  
Shear Strength ◽  
Reinforced Concrete ◽  
Seismic Behavior ◽  
Limit State ◽  
Shear Walls ◽  
Experimental Program ◽  
Shear Mode ◽  
Concrete Walls ◽  
Strength Deterioration ◽  
Distributed Reinforcement

The behavior of reinforced concrete walls that exhibit the shear mode of failure is studied, through the results of an experimental program that included the test of 26 full-scale specimens subjected to cyclic horizontal displacements of increasing amplitude. Test parameters were the aspect ratio of the walls, the amount of vertical and horizontal distributed reinforcement, and the compressive strength of concrete. The results include the cracking shear strength, the maximum shear strength, the drifts associated to these loads and the drift associated to a collapse limit state for each of the specimens tested. Conclusions are drawn concerning the deformation capacity, the energy absorption, the dissipation characteristics and the strength deterioration after maximum strength shown by the walls and the influence of vertical distributed reinforcement on the seismic behavior of walls.

Experimental analysis of in-plane shear strength of reinforced concrete masonry walls and its seismic behavior

2016 ◽  
pp. 2295-2302 ◽  
Author(s):  
D.A. Hidalgo-Leiva ◽  
A.H. Barbat ◽  
L.G. Pujades ◽  
D. Acuña-García
Keyword(s):  
Shear Strength ◽  
Reinforced Concrete ◽  
Experimental Analysis ◽  
Seismic Behavior ◽  
Masonry Walls ◽  
Plane Shear ◽  
Concrete Masonry ◽  
Concrete Masonry Walls

Seismic Behavior and Shear Strength of Framed Joint Using Steel‐Fiber Reinforced Concrete

1992 ◽  
Vol 118 (2) ◽  
pp. 341-358 ◽  
Author(s):  
Tang Jiuru ◽  
Hu Chaobin ◽  
Yang Kaijian ◽  
Yan Yongcheng
Keyword(s):  
Shear Strength ◽  
Reinforced Concrete ◽  
Seismic Behavior ◽  
Steel Fiber ◽  
Fiber Reinforced Concrete ◽  
Fiber Reinforced ◽  
Steel Fiber Reinforced Concrete

Shaking Table Test on the Seismic Behavior of Caisson Type Quay-Wall in Application of Ground Solidification Technique

2009 ◽  
Author(s):  
Kiyonobu Kasama ◽  
Kouki Zen ◽  
Guangqi Chen ◽  
Kentaro Hayashi
Keyword(s):  
Shear Strength ◽  
Seismic Behavior ◽  
Shaking Table Test ◽  
Earth Pressure ◽  
Seismic Damage ◽  
Shaking Table ◽  
Quay Wall ◽  
Current Design ◽  
The Stability ◽  
Seismic Earth Pressure

In order to investigate the effect of ground solidification method for reducing the seismic damage of caisson type quay-wall, a series of shaking table tests in 1g gravitational field were performed in terms of the shear strength and the improvement width of ground solidification. The main conclusions obtained from this study are as follows: 1) Ground solidification behind caisson type quay-wall is effective for reducing the seismic damage of caisson type quay-wall and, however, setting backfill stones in solidified ground is not useful for the stability of quay-wall in current experimental condition for this study. 2) For solidified ground with large shear strength, the seismic behavior of quay-wall sympathizes with solidified ground as if both of solidified ground and quay-wall are a combined structure. Consequently, the seismic earth pressure from liquefied sandy ground is absorbed by solidified ground reducing the seismic earth pressure to quay-wall. 3) A formula to evaluate the sliding safety of caisson type quay-wall with solidified ground is proposed considering the cohesive component of shear strength of solidified ground. Based on the proposed formula, the improvement width for ground solidification method can be reduced from a conventional width in current design code.

scholarly journals Seismic Performance of High-Ductile Fiber-Reinforced Concrete Short Columns

2018 ◽  
Vol 2018 ◽  
pp. 1-11 ◽  
Author(s):  
Mingke Deng ◽  
Yangxi Zhang
Keyword(s):  
Shear Strength ◽  
Reinforced Concrete ◽  
Energy Dissipation ◽  
Seismic Performance ◽  
Seismic Behavior ◽  
Fiber Reinforced Concrete ◽  
Test Results ◽  
Fiber Reinforced ◽  
Short Column ◽  
Short Columns

This study mainly aims to investigate the effectiveness of high-ductile fiber-reinforced concrete (HDC) as a means to enhance the seismic performance of short columns. Six HDC short columns and one reinforced concrete (RC) short column were designed and tested under lateral cyclic loading. The influence of the material type (concrete or HDC), axial load, stirrup ratio, and shear span ratio on crack patterns, hysteresis behavior, shear strength, deformation capacity, energy dissipation, and stiffness degradation was presented and discussed, respectively. The test results show that the RC short column failed in brittle shear with poor energy dissipation, while using HDC to replace concrete can effectively improve the seismic behavior of the short columns. Compared with the RC short column, the shear strength of HDC specimens was improved by 12.6–30.2%, and the drift ratio and the energy dissipation increases were 56.9–88.5% and 237.7–336.7%, respectively, at the ultimate displacement. Additionally, the prediction model of the shear strength for RC columns based on GB50010-2010 (Chinese code) can be safely adopted to evaluate the shear strength of HDC short columns.

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