Study of seismic response characteristics of building frame models using shake table test and considering soil–structure interaction

Kumar, Madan; Mishra, Shambhu Sharan

doi:10.1007/s42107-018-00114-w

Cited by 19 publications

(7 citation statements)

References 16 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In this study, all required material properties of the physical model were scaled using similitude law suggested by Iai et al [27]. Structures are usually scaled down to a smaller size [28,29]. Considering the dimensions of the laminate shear model box, a geometric scale of λ 30 was used.…”

Section: Scaling Factorsmentioning

confidence: 99%

Seismic Response of a Bridge Pile Foundation during a Shaking Table Test

Dong

Feng

et al. 2019

Shock and Vibration

View full text Add to dashboard Cite

Puqian Bridge is located in a quake-prone area in an 8-degree seismic fortification intensity zone, and the design of the peak ground motion is the highest grade worldwide. Nevertheless, the seismic design of the pile foundation has not been evaluated with regard to earthquake damage and the seismic issues of the pile foundation are particularly noticeable. We conducted a large-scale shaking table test (STT) to determine the dynamic characteristic of the bridge pile foundation. An artificial mass model was used to determine the mechanism of the bridge pile-soil interaction, and the peak ground acceleration range of 0.15 g–0.60 g (g is gravity acceleration) was selected as the input seismic intensity. The results indicated that the peak acceleration decreased from the top to the bottom of the bridge pile and the acceleration amplification factor decreased with the increase in seismic intensity. When the seismic intensity is greater than 0.50 g, the acceleration amplification factor at the top of the pile stabilizes at 1.32. The bedrock surface had a relatively small influence on the amplification of the seismic wave, whereas the overburden had a marked influence on the amplification of the seismic wave and filtering effect. Damage to the pile foundation was observed at 0.50 g seismic intensity. When the seismic intensity was greater than 0.50 g, the fundamental frequency of the pile foundation decreased slowly and tended to stabilize at 0.87 Hz. The bending moment was larger at the junction of the pile and cap, the soft-hard soil interface, and the bedrock surface, where cracks easily occurred. These positions should be focused on during the design of pile foundations in meizoseismal areas.

show abstract

Section: Scaling Factorsmentioning

confidence: 99%

Seismic Response of a Bridge Pile Foundation during a Shaking Table Test

Dong

Feng

et al. 2019

Shock and Vibration

View full text Add to dashboard Cite

show abstract

“…In this study four, six and eight storeys moment resistant steel frame models of 1.2, 1.8 and 2.4m heights were fabricated [18]. These fabricated models represented 12, 18 and 24 m heights of actual residential buildings.…”

Section: Test Frame Modelsmentioning

confidence: 99%

Response Of Framed Building Models Near Underground Excavation Due To Artificial Excitation using Shake Table Test

Kumar*,

Mishra

2019

IJITEE

View full text Add to dashboard Cite

In urban areas where land is limited and buildings are closely spaced, deep excavations are necessary for the construction of surface and sub-surface facilities. Therefore, there is a concern that soil excavations resulting in a ditch or a trench adjacent to a building may adversely affect the response of nearby buildings when earthquakes occur. In this paper, the results of experimental study of building frame models in close proximity of excavations and subjected to artificial excitations are presented through a series of shake table tests. The study has been conducted to investigate the effects of the size and offset distances of excavations on the response of the building frame models founded on different types of foundation systems. It is observed that the width, depth and offset distance of the trench has a significant influence on the response of the building frame. It is seen that pile foundation with sufficient embedment depth produces less displacement at the top of the building as compared to other foundation systems.

show abstract

“…Therefore, effect of SSI becomes important for structures situated on relatively soft soils. Many researchers [2][3][4] confirm that Kobe, 1995 earthquake highlighted the seismic behaviour of a superstructure as well as substructure.The transmitting boundaries can be typically classified into two important arrangements [5]; local (viscous) and consistent boundaries. Local boundary conditions are commonly used in engineering practice because the radiation condition is satisfied approximately at the artificial boundary, as the solution is local in space and time.…”

Section: Introductionmentioning

confidence: 99%

Effect of Transmitting Boundary on Soil – Slope - Foundation Interaction

Kumar*¹,

Rani²,

Priyadarshee³

et al. 2020

IJITEE

View full text Add to dashboard Cite

Abstract: In recent years, extensive research has been performed when the foundation is placed on the crest of slope. Besides of so many researches less number of researches has been done for foundation is placed on slope considering Soil-Structure Interaction (SSI) effect. Construction on slopes poses more challenges especially under seismic load due to an earthquake in addition to the forces of sliding slope itself. The failure of slope not only affects any structure but also has damaging consequences on the environment in general. Therefore, transmitting boundaries should be adequate to absorb the seismic energy at the boundaries. In this paper, effect of transmitting boundary on soil-slope-foundation interaction (SSFI) is studied. Two cases have analysed for SSFI when foundation is placed at various position on the crest and slope itself. El-Centro earthquake (1940) with three different PGA viz. 0.25g, 0.5g and 1g is applied as input motion for both the cases. It is observed that the foundation placed near the slope is more susceptible to damage. Responses of slope (acceleration and displacement) have also been observed at three different nodal points on slope. Results show that the amplification in soil mass leads to settlement of foundation. Shear stress and equivalent plastic strain distribution for SSFI is discussed for different load conditions. It is found thatthe slope-foundation system shows the local and global failure. Further Post earthquake peak settlement for foundation is plotted and it shows the true behavior of soil.

show abstract

Study of seismic response characteristics of building frame models using shake table test and considering soil–structure interaction

Cited by 19 publications

References 16 publications

Seismic Response of a Bridge Pile Foundation during a Shaking Table Test

Seismic Response of a Bridge Pile Foundation during a Shaking Table Test

Response Of Framed Building Models Near Underground Excavation Due To Artificial Excitation using Shake Table Test

Effect of Transmitting Boundary on Soil – Slope - Foundation Interaction

Contact Info

Product

Resources

About