Research of Three-Truss Cable-Stayed Bridge Spatial Characteristic

2014 ◽  
Vol 638-640 ◽  
pp. 1024-1027
Author(s):  
Jun Feng Guo
Keyword(s):  
Cross Section ◽  
Beam Element ◽  
Spatial Characteristic ◽  
Deformation Analysis ◽  
Flexible Beam ◽  
Standard Requirement ◽  
Complex Load ◽  
Cable Stayed Bridge ◽  
Cable Force ◽  
Space Beam Element

Wuhan Tianxingzhou Yangtze River Rail-cum-Road Bridge is the first four line rail cable-stayed bridge in china, with three-truss cross section. The new structure presents complex load performance, especially the spatial mechanical characteristics, because the bridge supports six lanes and four railway load, inevitably the main truss will produce a great torque, leading to three-truss cross section distortion and warping deformation. Analysis of the whole bridge spatial structures is carried out. The space shear flexible beam grillage model is used for bridge structure simulation, the upper and lower vertical member and the horizontal link simulated with beam element, while the pylon with space beam element, the cable with cable element. Though the calculation of the cable force and stress, the main girders stress, the pylon stress, the displacement of the main girder and the pylon, it can be shown that the space force and displacement keep within the standard requirement.

Nonlinear Analysis of Cable-Stayed Bridge

2014 ◽  
Vol 587-589 ◽  
pp. 1558-1562
Author(s):  
Hai Hong Mo
Keyword(s):  
Quantitative Analysis ◽  
Nonlinear Analysis ◽  
Large Deformation ◽  
Influence Factor ◽  
Basic Theory ◽  
Main Beam ◽  
Deformation Effect ◽  
Cable Stayed Bridge ◽  
Cable Force

The nonlinear basic theory and nonlinear influence factor of cable-stayed bridge has been introduced. Quantitative analysis to the sag effect, beam-column effect and large deformation effect has been done based on a cable-stayed bridge. Analysis show that the sag effect, beam-column effect and large deformation effect of cable force is not obvious, but the sag effect should not been ignored in the calculation of the main beam.

Study on Kinetic Energy for Saving Materials with Analysis of Lumped Mass Matrix of Variable Cross-Section Beam Element

2013 ◽  
Vol 675 ◽  
pp. 158-161
Author(s):  
Lv Zhou Ma ◽  
Jian Liu ◽  
Yu Qin Yan ◽  
Xun Lin Diao
Keyword(s):  
Kinetic Energy ◽  
Cross Section ◽  
Mass Matrix ◽  
Nonlinear Problems ◽  
Variable Cross Section ◽  
Beam Element ◽  
Variable Cross ◽  
Lumped Mass ◽  
Geometrical Nonlinear ◽  
Properties Of Materials

Based on positional finite element method (FEM), a new, simple and accurate lumped mass matrix to solve dynamic geometrical nonlinear problems of materials applied to variable cross-section beam element has been proposed. According to Hamilton theory and the concept of Kinetic energy, concentrate the beam element mass to the two nodes in certain proportion, the lumped mass matrix is deduced. The lumped mass matrix is diagonal matrix and its calculated quantity is less than using consistent mass matrix about properties of materials under the same calculation precision.

Fast Tracking the Pulau Poh Cable-stayed Bridge

2018 ◽  
Author(s):  
Chet Chie Voon ◽  
Hiang Miang Goh ◽  
Chuan Seng Koo
Keyword(s):  
Cross Section ◽  
Fast Track ◽  
Rainfall Intensity ◽  
Stay Cable ◽  
Bridge Design ◽  
Environmental Challenges ◽  
High Rainfall ◽  
Fast Tracking ◽  
Cable Stayed Bridge ◽  
Design Life

<p>The construction of the Pulau Poh cable-stayed bridge has been challenging both technically and environmentally. The curved pylon shape in two planes, with changing cross section and heavily congested reinforcement pose constructability concerns. Accurate geometry control and positioning of stay cable anchorages within the pylon is crucial to ensure the bridge meets its intended design life. Located in an area with high rainfall intensity presents additional environmental challenges, where working areas are constantly submerged. To address the challenges and meet the project deadline, innovative construction methodologies are being adopted. The bridge design was also revisited, taking into consideration the construction approach. This paper aims to explain the challenges faced and methods used to fast track the construction of the Pulau Poh cable-stayed bridge.</p>

The Verification of Geometry Control Method for Cable-Stayed Bridge

2014 ◽  
Vol 1065-1069 ◽  
pp. 992-996
Author(s):  
Can Huang ◽  
Yi Zhi Bu ◽  
Qing Hua Zhang
Keyword(s):  
Numerical Simulation ◽  
Temperature Field ◽  
Energy Method ◽  
Control Method ◽  
Simulation Analysis ◽  
Beam Element ◽  
Integration Process ◽  
Cable Stayed Bridge ◽  
Construction Procedure ◽  
Element Theory

Based on the energy method and beam-element theory, the nonlinear strain are considered, non-stress length and non-stress curvature of element of geometry control method are introducted in the integration process of stain energy. The static equilibrium equation of the geometry control method is established. Take the impacts of structural geometric profile induced by temporary loads and temperature field during the construction procedure are investigated, the correctness of the geometry control method is verified by the numerical simulation analysis.

Aesthetic Design of Odawara Port Bridge

1996 ◽  
Vol 1549 (1) ◽  
pp. 108-113
Author(s):  
Tsuguo Oishi ◽  
Yasuo Inokuma
Keyword(s):  
Cross Section ◽  
Prestressed Concrete ◽  
Surrounding Area ◽  
Box Girder ◽  
Aesthetic Design ◽  
Cable Stayed Bridge ◽  
The World ◽  
Bridge Type ◽  
Main Girder ◽  
Tower Height

The Odawara Port Bridge is located at the mouth of Odawara Port. Selecting a bridge type that symbolized the entire project and blended well with the surrounding area was critical. To achieve this, an extra-dosed prestressed concrete box girder with a main span of 122 m was selected. Construction of this bridge type is the first in the world. Special characteristics of this bridge type are a lower tower height than that of a cable-stayed bridge, the use of a saddle at the top of the towers, and the incorporation of epoxy-coated strands for diagonal cables. The design of the various sections of the bridge was achieved by integrating the characteristic shape of the towers with cable profiles while establishing horizontal continuity with the main girder. As a result of the integration process, the following design objectives were adopted: (a) constant main girder depth; (b) inverted trapezoidal main girder cross section; (c) towers without a connecting beam at the top; (d) a fan-shaped saddle; (e) compact cable vibration dampers; (f) graded metallic coloring of cables; (g) integrated steel railing and road surface lighting; (h) nighttime bridge lighting, and (i) encased drainage pipes.

Aerodynamic instability of a hinged-deck cross-section cable-stayed bridge

2020 ◽  
Vol 198 ◽  
pp. 104110
Author(s):  
Elena Lopez-Nuñez ◽  
Mikel Ogueta-Gutiérrez ◽  
Raul Manzanares-Bercial ◽  
Omar Gómez-Ortega ◽  
Sebastián Franchini ◽  
...  
Keyword(s):  
Cross Section ◽  
Cable Stayed Bridge ◽  
Aerodynamic Instability

Prestressed Concrete Continuous Girder Bridge Reinforcement Simulation Analysis and Carrying Capacity Assessment

2012 ◽  
Vol 594-597 ◽  
pp. 1516-1521
Author(s):  
Ling Yu ◽  
Tie Zhu Qiao ◽  
Long Sheng Bao ◽  
Guang Shan Zhu
Keyword(s):  
Compressive Stress ◽  
Cross Section ◽  
Prestressed Concrete ◽  
Carrying Capacity ◽  
Simulation Analysis ◽  
Tension Stress ◽  
Reinforced Concrete Structure ◽  
Standard Requirement ◽  
Continuous Girder Bridge ◽  
Girder Bridge

This article simulates prestressed concrete continuous girder bridge reinforced many times and evaluates carrying capacity after reinforcement. Taking the FuFeng bridge for an example, we analyze the bridge’s stress state in using by Midas software, evaluate the concrete ability of crack resistance, check the reinforced concrete structure ultimate carrying capacity, the cracking resistance and the stiffness, assess reinforcement effect and verify the accuracy and reliability of the simulation results. The maximum main compressive stress, maximum compressive stress, maximal main tensile stress and maximum tension stress of mid-span cross-section of the bridge are 1.6Mpa, 1.6Mpa, 0.3~0.5Mpa, and -1.2Mpa respectively, the mid-span center cross-section of deflection is 2.89cm. Reinforcement suppresses the development and expansion of the crack; the mid-span deflection tends to stabilize; the ultimate bearing capacity meets the Standard requirement basically; the emergency capacity is not enough; and the car whose weight over 55 tons is prohibited from passing.

A New Type Component Mode Synthesis Beam Element Based on the Absolute Nodal Coordinate Formulation

2003 ◽  
Author(s):  
Riki Iwai ◽  
Nobuyuki Kobayashi
Keyword(s):  
High Efficiency ◽  
Absolute Nodal Coordinate Formulation ◽  
Mass Matrix ◽  
Synthesis Method ◽  
Beam Element ◽  
Component Mode Synthesis ◽  
Flexible Beam ◽  
Absolute Nodal Coordinate ◽  
New Type ◽  
The Absolute

This paper establishes a new type component mode synthesis method for a flexible beam element based on the absolute nodal coordinate formulation. The deformation of the beam element is defined as the sum of the global shape function and the analytical clamped-clamped beam modes. This formulation leads to a constant and symmetric mass matrix as the conventional absolute nodal coordinate formulation, and makes it possible to reduce the system coordinates of the beam structure which undergoes large rotations and large deformations. Numerical examples show that the excellent agreements are examined between the presented formulation and the conventional absolute nodal coordinate formulation. These results demonstrate that the presented formulation has high accuracy in the sense that the presented solutions are similar to the conventional ones with the less system coordinates and high efficiency in computation.

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