Calculation of Cable Force for Long-Span Multi-rib Arch Bridge Construction Based on Zero-Order Optimization Method

2010 ◽  
Author(s):  
Shuixing Zhou ◽  
Dongsheng Sun
Keyword(s):  
Optimization Method ◽  
Zero Order ◽  
Bridge Construction ◽  
Arch Bridge ◽  
Long Span ◽  
Cable Force

Overall and Step Iterative Algorithm of Cable Force for Multi-Rib Steel Truss Arch Bridge in Procedure of Rib Segments Assembling

2011 ◽  
Vol 255-260 ◽  
pp. 1052-1055
Author(s):  
Shui Xing Zhou ◽  
Min Zhang ◽  
Wei Feng Tian ◽  
Jun Xu
Keyword(s):  
Iterative Method ◽  
Iterative Algorithm ◽  
Optimization Method ◽  
Zero Order ◽  
Dead Load ◽  
Arch Bridge ◽  
Steel Truss ◽  
Control Target ◽  
Cable Force ◽  
Main Arch

Taking deformation of the main arch under dead load as the arch alignment control target, the overall cable force and pre-camber of multi-rib arch were calculated by zero-order optimization method. According to the installation sequences of arch segments, taking deviation of cable tower, cables in one-time tensioning method and the section stress of arch chords as constraint conditions, the cable force and pre-camber for every segment were calculated by iterative method. This method is applied to the erection of a 400m steel truss arch bridge with three ribs, the calculated values of cable force are anastomosed with the measured ones, and the precision of arch alignment is high.

Analyze on Construction Status Long-Span Arch Rib Bridge by Numerical Simulation

2011 ◽  
Vol 480-481 ◽  
pp. 1318-1323
Author(s):  
Jiang Hao
Keyword(s):  
Numerical Simulation ◽  
Finite Element Method ◽  
Finite Element ◽  
Construction Method ◽  
Bridge Construction ◽  
Actual Measurement ◽  
Arch Bridge ◽  
Long Span ◽  
Cable Force ◽  
Element Method

Non-cable hoisting frame is a construction method of the main arch ribs of big span bridge. The key issue in the numerical simulation of this type of bridge construction is geometric nonlinearity approach. Construction method of long-span bridge rib and stage-by-stage construction method of a arch bridge was simulated by finite element method. The geometric description was attained comparison with simulation results and the actual measurement of cable force. The results show that finite element method is effectively used in the simulation of long span arch bridge construction.

Construction Monitoring Technology Research on Large-Span V Structure Tied Arch Bridge

2013 ◽  
Vol 351-352 ◽  
pp. 1240-1243 ◽  
Author(s):  
Ting Yin ◽  
Wei Zhang ◽  
Yan Bo Zhao ◽  
Xiao Long Sun
Keyword(s):  
Actual State ◽  
Construction Process ◽  
Bridge Construction ◽  
Monitoring Point ◽  
Monitoring Technology ◽  
Construction Monitoring ◽  
Arch Bridge ◽  
Large Span ◽  
Long Span ◽  
Tied Arch Bridge

Large-span V structure tied arch bridge structure system is complex. In order to make the actual state of the bridge into the ideal state of maximum close to the design, we must make real-time monitoring in the key parts of the structure, and adjust to the design of the data by analysis calculated, to ensure the safety and reliability of arch bridge in the course of construction and into stress after the completed bridge. Combined with the construction monitoring of the main Xinglong Bridge on Si River, this paper introduces the main bridge construction process measurement a preliminary study on the large span V configuration basket tied arch bridge construction monitoring technology. Based on the construction monitoring of Xinglong Bridge on Si River, this paper introduces the main contents and methods of monitoring point location, monitoring control of construction process, and discussed the construction monitoring technology of long-span X-style tied arch bridge V structure.

Calculation of Cable Force for Long-Span Rib Arch Bridge Construction under Seasonal Ambient Temperature

2011 ◽  
Vol 378-379 ◽  
pp. 341-344
Author(s):  
Wei Feng Tian ◽  
Shui Xing Zhou ◽  
Ayad Thabet Saeed Alghabsha
Keyword(s):  
Ambient Temperature ◽  
Control Method ◽  
Difficult Problem ◽  
State Control ◽  
Optimization Analysis ◽  
Arch Bridge ◽  
Long Span ◽  
Unstressed State ◽  
Cable Force ◽  
Cable Forces

Calculation of cable force under seasonal ambient temperature is the key and difficult problem in the construction of long-span rib arch bridge. It affects the final cable forces and deformations of arch rib after arch closure. Unstressed state control method is introduced in the construction of Daning River Bridge; unstressed qualities of ribs and unstressed length of cables can be obtained by optimization analysis of the maximum cantilever state in construction. According to unstressed state control method, the cable forces of each segment were calculated using the forward-iteration method. These results offer the basis for construction control, and guarantee the arch rib line and cable forces to meet the design requirements, and an arch closure with high precision.

scholarly journals Design Research of 600 M Scale Concrete Arch Bridge Based on Mathematical Optimization Method

2020 ◽  
Vol 0 (0) ◽  
Author(s):  
Hongjiang Yu ◽  
Jiuqun Mao ◽  
Qian Zhou ◽  
Boxu Cheng ◽  
Xuesong Liu ◽  
...  
Keyword(s):  
Cross Section ◽  
Design Research ◽  
Mathematical Optimization ◽  
Optimization Method ◽  
Zero Order ◽  
Design Parameters ◽  
General Function ◽  
Arch Bridge ◽  
Mathematical Algorithm ◽  
The Rich

AbstractThe mathematical algorithm of zero order optimization is a general function approach optimization method. Based on this method, many sets of analytical procedures are developed using ANSYS to study the design of 600m scale concrete arch bridge and the optimal arch axis coefficient, change mode and cross section sizes are obtained and verified. Results show: the mathematical algorithm of zero order optimization can effectively study the design of 600m arch bridge. The rich conclusions about design parameters can be a significant reference for design and further research of 600 m scale concrete arch bridge.

Reasonable Elevation Calculation of Temporary Pier of Long-Span Steel Trussed Arch Bridges with Semi-Cantilever

2014 ◽  
Vol 501-504 ◽  
pp. 1318-1322
Author(s):  
Xu Luo ◽  
Lu Rong Cai
Keyword(s):  
Significant Influence ◽  
Construction Method ◽  
Bridge Construction ◽  
Arch Bridge ◽  
Long Span ◽  
Building Process ◽  
Steel Truss ◽  
Arch Bridges ◽  
Beam Bridge

When the scaffold construction method is applied on long-span steel trussed arch bridges, reasonable setting of the temporary pier elevation has significant influence on assembly linearis and safety assembly of long-span steel trussed arch bridges with semi-cantilever. In this paper, in accordance with the manufacturing linearis steel trussed beam bridge and steel truss beam linearis changing during building process, the calculation of temporary pier elevation was studied systematically, and practical function was deduced. Then, the method was applied to a long-span steel trussed arch bridge. The obtained result by in-situ assembly and dismantling presents that: 50 mm preserved method is considered in this paper, which can provide convenience for removing the temporary pier. At the same time, the rationality and reliability of the presented approach are verified. It also can provide reference for similar bridge construction.

Long-span Steel Truss Arch Bridge Construction and Innovation

2015 ◽  
Vol 105 (2) ◽  
pp. 1-7
Author(s):  
Dan Liu ◽  
Wei Tian ◽  
Jianxin Zheng
Keyword(s):  
Bridge Construction ◽  
Arch Bridge ◽  
Long Span ◽  
Steel Truss
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