Impact of Holes in Offshore Pile Foundation on Internal Force Distribution

2018 ◽  
pp. 210-216
Author(s):  
L. G. Tran ◽  
T. D. C. Nguyen
Keyword(s):  
Pile Foundation ◽  
Internal Force ◽  
Force Distribution

scholarly journals Mobility evaluation of wheeled robots on soft terrain: Effect of internal force distribution

2016 ◽  
Vol 100 ◽  
pp. 259-282 ◽  
Author(s):  
Bahareh Ghotbi ◽  
Francisco González ◽  
József Kövecses ◽  
Jorge Angeles
Keyword(s):  
Internal Force ◽  
Force Distribution ◽  
Wheeled Robots ◽  
Terrain Effect

Seismic Performance Assessment of Long Span Continuous Rigid Bridge

2013 ◽  
Vol 353-356 ◽  
pp. 2033-2038
Author(s):  
Qi Wen Jin ◽  
Tong Ning Wang ◽  
Yi Li Sun ◽  
Zhao Tong Hu
Keyword(s):  
Pile Foundation ◽  
Plastic Hinge ◽  
Bending Moment ◽  
Internal Force ◽  
Seismic Capacity ◽  
Seismic Performance Assessment ◽  
Soil Function ◽  
Long Span ◽  
Rigid Frame ◽  
Cantilever Construction

Based on the theory of cantilever construction, combined with a three cross continuous rigid frame bridge, choosing the biggest cantilever stage, side span cross fold stages, middle span cross fold stage and complete bridge stage as the research object. Considering the pillar-soil function, making the seismic elastic-plastic response calculation. Getting the result that, during the earthquake, pillar-soil function can improve the flexible extension ability of the bridge structure so as to get better resistance seismic capacity. Internal force of the construction stage gradually reduces along the bottom pier, the middle pier and the top pier. Along the bridge, the maximum bending moment appears at the biggest cantilever stage. Horizontal to the bridge, the maximum bending moment appears at the side span cross fold stages. Plastic areas develops quickly during pier bottom and pile top, the crack is obvious; Plastic hinge first appears in the pile foundation, consuming earthquake energy through its plastic deformation so as to reduce the earthquake impact of pier. We should try to avoid plasticitys appearing in the pile foundation during the design, which will provide convenience for the follow-up maintenance.

Loading Analysis and Mathematical Calculation for Arc Axis of the Exponential Function

2013 ◽  
Vol 834-836 ◽  
pp. 1382-1385
Author(s):  
Li Xiang ◽  
Zhu Feng ◽  
Zhai Qiu ◽  
Ruo Yin Zhang
Keyword(s):  
Exponential Function ◽  
Internal Force ◽  
Force Distribution ◽  
Shipping Industry ◽  
Uniform Load ◽  
Concentrated Load ◽  
Long Span ◽  
Mathematical Calculation ◽  
Dangerous Section ◽  
Loading Analysis

The concept of arch longitudinal beam wharf was brought out in the contemporary shipping industry of China as a result of the conflict between traditional high-piled wharfs and the increasing size of freights. Different alignments of arch axis will lead to different internal force distributions and the most dangerous section. A series of equations for the arch axis are derived through the transformation of the exponential function under a 40-meter-long span. Based on the analysis of equations affected by the combined force of uniform load and concentrated load, it is providing reference for engineers and analysts with the internal force distribution under some commonly used axis and the location of the most dangerous section for the archs.

Analysis of Tunnel Running through Bridge Pile Foundation Based on the MIDAS/GTS

2014 ◽  
Vol 721 ◽  
pp. 809-812
Author(s):  
Jin Kui Li ◽  
De Jin Tang
Keyword(s):  
Pile Foundation ◽  
Horizontal Displacement ◽  
Central Line ◽  
Internal Force ◽  
Construction Process ◽  
Underground Engineering ◽  
Finite Element Software ◽  
Bridge Pile Foundation ◽  
Shield Machine ◽  
Sedimentation Value

Based on the problem of tunnel running through bridge pile foundation, a 3d numerical model is built by the finite element software MIDAS/GTS in order to research the internal force and the displacement of the pile and soil during the Construction process. The sedimentation value of the top of the pile is bigger than others. Because the bigger thrust about the Shield machine, the horizontal displacement of the pile is increasing at first and decreasing at last from a positive into a negative. Because of the loss of the soil, the soil beside the pile collapses and causes strong friction force. The surface sedimentation value which is near the central line of the tunnel is bigger than other place. This paper is of good reference roles in the similar underground engineering in Dalian.

Numerical Analysis of Tunnel Running through Bridge Pile Foundation

2015 ◽  
Vol 744-746 ◽  
pp. 978-981
Author(s):  
Jin Kui Li ◽  
De Jin Tang
Keyword(s):  
Pile Foundation ◽  
Horizontal Displacement ◽  
Central Line ◽  
Internal Force ◽  
Construction Process ◽  
Underground Engineering ◽  
Finite Element Software ◽  
Bridge Pile Foundation ◽  
Shield Machine ◽  
Sedimentation Value

Based on the background of Dalian subway running through bridge pile foundation, a 3d numerical model is built by the finite element software MIDAS/GTS in order to research the laws of the internal force and the displacement of the pile and soil during the Construction process. The outcome reflects that the sedimentation value of the top of the pile is bigger than others. Because the bigger thrust about the shield machine, the horizontal displacement of the pile is increasing at first and decreasing at last from a positive into a negative. Because of the loss of the soil, the soil beside the pile collapses and causes strong friction force. The surface sedimentation value which is near the central line of the tunnel is bigger than other place. This paper is of good reference roles in the similar underground engineering in Dalian.

scholarly journals Fastener Scaffold Stability Analysis and Experimental Research Under Non-Uniform Distributed Load

2017 ◽  
Vol 11 (1) ◽  
pp. 873-886
Author(s):  
Dong Chen ◽  
Yuzhuo Wang ◽  
Xiping He
Keyword(s):  
Load Distribution ◽  
Stability Limit ◽  
Limit Load ◽  
Internal Force ◽  
Force Distribution ◽  
Numerical Studies ◽  
Distributed Load ◽  
Transfer Rules ◽  
Geometry Nonlinearity ◽  
Vertical Bars

Introduction: An experiment was carried out on the basis of material nonlinearity, geometry nonlinearity and semi rigid fasteners for the internal force distribution and transfer rules of the scaffold. Methods: This paper presents results from a set of numerical studies on the influence of the random imperfection method, the interaction of various imperfections and the most disadvantageous stability limit load. Result and Conclusion: Data from numerical studies indicate that stress at the top of the vertical bar was larger within the scope of load; and the horizontal bar and brace participated in the work of the scaffold. The internal force that came through the two types of bars enabled us to realize the redistribution in every vertical bar in order to decrease the stress from the top to the bottom of the vertical bars and involve them in the work of the scaffold. Data from numerical studies also indicates that these imperfections all interact with each other and the load distribution also influences the scaffold’s stability.

The Experimental Study on Mechanical Performance of Multi-Span Column-Supported Assembly Box Concrete Hollow Floor

2013 ◽  
Vol 351-352 ◽  
pp. 560-565
Author(s):  
Kao Zhong Zhao ◽  
Guang Yi Wang
Keyword(s):  
Static Load ◽  
Mechanical Performance ◽  
Internal Force ◽  
Force Distribution ◽  
Support Section ◽  
Distribution Law ◽  
Specific Distribution ◽  
Floor Structure ◽  
External Forces

Assembly box concrete hollow floor sructure is a new-style whole structure that are constituted by the a cross section of a concrete box composed of small prefabricated components (concrete superposition box) and a cast-in-place concrete rib beam.The internal force distribution law was analyzed in this paper, based on the static load experiment with a multi span column-supported assembly box concrete hollow floor.The findings prove that the prefabricated boxs and cast-in-situ concrete ribbed beams are able to form a whole to jointly bear external forces, that the internal force distribution law is basically the same with the solid cast-in-situ concrete floor with no beams, and that the floor structure can be simplified to the column strip and middle strip.The specific distribution ratios between the minus moment and the plus moment of the column strip and middle strip respectively are as follows. For the angel area floor(contianed edge beams), the ratio of midspan section is 0.537:0.463, the ratio of support section is 0.816:0.184; for the edge area floor(contianed edge beams), the ratio of midspan section is 0.51:0.49, the ratio of support section is 0.808：0.192; for the inner area floor, the ratio of midspan section is 0.55:0.45, the ratio of support section is 0.75:0.25.

Internal Force Distribution Effect on Framework Stability

1983 ◽  
Vol 109 (1) ◽  
pp. 250-257 ◽  
Author(s):  
George D. Manolis ◽  
Dimitrios E. Beskos
Keyword(s):  
Internal Force ◽  
Force Distribution ◽  
Distribution Effect

Mechanical Behavior of Multi-Pylon Steel Cable-Stayed Bridge

2015 ◽  
Vol 1101 ◽  
pp. 355-360 ◽  
Author(s):  
Ming Gen Zeng ◽  
Chang Yuan Dai ◽  
Qing Tian Su
Keyword(s):  
Mechanical Behavior ◽  
Distribution Pattern ◽  
Internal Force ◽  
Force Distribution ◽  
Structure Form ◽  
Steel Cable ◽  
Steel Columns ◽  
Cable Stayed Bridge ◽  
Load Carrying ◽  
Main Girder

The structure form of the multi-pylon cable-stayed bridge is greatly different from that of conventional cable-stayed bridge with twin-pylon or single-pylon, which induces the mechanical behavior of multi-pylon cable-stayed bridge is also much different from that of cable-stayed bridge with twin-pylon or single-pylon. Combined with the Fanli Bridge in Yixing city of Jiangsu province, the load carrying performance of this type bridge is analyzed. The analytical results show that the internal force distribution pattern of main girder in this type cable-stayed bridge is different from that of in conventional cable-stayed bridge, also the internal force distribution pattern of both the different steel pylons in same bridge and the steel columns in same pylon are distinctive.

Study of Safety Influence Factor of Bridge Substructure in Loess Gulch

2012 ◽  
Vol 546-547 ◽  
pp. 89-96
Author(s):  
Jin Wei ◽  
Zhong Ju Feng ◽  
Feng Ma
Keyword(s):  
Soil Erosion ◽  
Debris Flow ◽  
Pile Foundation ◽  
Influence Factor ◽  
Lateral Displacement ◽  
Bending Moment ◽  
Zero Point ◽  
Internal Force ◽  
Prevention Measures ◽  
The Stability

In this paper, the geology characteristics of loess gulch area were summarized. The mechanical models of the influence of landslide, debris flow and soil erosion on the safety of the pile foundation were created. The influence of the geology casualty on the safety of the pile foundation were analyzed. The analyses showed, when the pile foundation located the varied position of the loess gulch, the influence of soil erosion on the pile foundation character (acting force of pile side, free length of the pile, the first zero point position of the flexure curve, drawdown of the maximum bending moment, the increment of the lateral displacement, the drawdown of the lateral bearing capacity, the drawdown of the stability, etc.) were strikingly different. The calculation method of the pile and pier internal force was put forward under the function of landslide thrust and pressing force of debris flow. The corresponding prevention measures to different influencing factors were presented in the end.

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