scholarly journals Research on Construction Monitoring of Large-Span Steel Pipe Truss Structure

2019 ◽  
Vol 09 (04) ◽  
pp. 255-267
Author(s):  
Kongliang Chen ◽  
Guoqing Yuan ◽  
Liankun Wang ◽  
Wenzhi Zhang ◽  
Xiaoke Wang
Keyword(s):  
Truss Structure ◽  
Steel Pipe ◽  
Construction Monitoring ◽  
Large Span

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.

Construction Monitoring Technology for Large-Span PC Continuous Box-Girder Bridge with Corrugated Steel Webs

2014 ◽  
Vol 1065-1069 ◽  
pp. 865-869
Author(s):  
Zhao Cai Liu ◽  
Lin Jie Hou ◽  
Can Hua Chang ◽  
Chong Hui Zhou ◽  
Shui Wan
Keyword(s):  
Field Measurements ◽  
Box Girder ◽  
Construction Monitoring ◽  
Large Span ◽  
Element Simulation ◽  
Single Room ◽  
Design Requirements ◽  
Box Girder Bridge ◽  
Girder Bridge ◽  
And Control

Through the construction monitoring of a large-span bridge which is a single box single room PC continuous box-girder bridge with corrugated steel webs, suitable methods are summed up. Finite element simulation was combined with field measurements data to calculate the model elevation of construction. By adjusting and control the model elevation, the linear shape of the bridge met the design requirements. By collecting strain data of the key sections of the bridge, abnormalities that may exist could be detected timely so that early warning could be made and construction safety and quality could be ensured.

Analysis of Stress in Construction Monitoring of Long - Span Concrete Bridge

2017 ◽  
Vol 1 (1) ◽  
pp. 6
Author(s):  
Jianwei Li
Keyword(s):  
Concrete Bridges ◽  
Concrete Bridge ◽  
Construction Technology ◽  
Construction Process ◽  
Stress Monitoring ◽  
Construction Monitoring ◽  
Technology Application ◽  
Large Span ◽  
Long Span

In order to improve the quality of the relevant construction development activities and effectively meet the special requirements of the design and construction of large span concrete bridges, the safety, effectiveness and economy of the bridge are fully enhanced. In this paper, the spatial structure of the long span concrete bridge is very special. As well as environmental adaptability, technical staff should be based on the development of large and span concrete bridge construction activities of the actual needs of large-span concrete bridge for scientific design and planning, but also the construction technology application activities for scientific supervision. The purpose of this paper is to explore the scientific and efficient application of stress monitoring in the construction process of large span concrete bridge under the guidance of the relevant theory of construction from the perspective of stress monitoring, so as to ensure the accuracy of construction activities and promote the development of bridge orderly development.

Design of a Steel Pipe Truss for a Hot Spring Spa

2013 ◽  
Vol 351-352 ◽  
pp. 195-198
Author(s):  
Shu Li Hou ◽  
Xiao Dong Yang ◽  
Ming Dong Wang
Keyword(s):  
Structural Analysis ◽  
Cross Section ◽  
Hot Spring ◽  
Structure Type ◽  
Steel Pipe ◽  
Large Span ◽  
Triangular Cross Section ◽  
Load Combination ◽  
Selection Of

Based on a real project, this paper presents the design of a space steel pipe truss with a triangular cross section upside down, in which it covers the selection of structure type, arrangement of the structure, loads and load combination, structural analysis as well as the detailing of some major joints. Thus it can serve as a reference for the design of similar large-span trusses.

scholarly journals Experimental and numerical investigations on overall buckling of steel pipe truss with circular cutout on the compression element

2019 ◽  
Vol 258 ◽  
pp. 03013
Author(s):  
Miftahul Iman ◽  
Bambang Suhendro ◽  
Henricus Priyosulistyo ◽  
Muslikh
Keyword(s):  
Pitting Corrosion ◽  
Truss Structure ◽  
Steel Pipe ◽  
Localized Corrosion ◽  
Truss Structures ◽  
Nonlinear Load ◽  
Buckling Loads ◽  
Capacity Reduction ◽  
Circular Cutout ◽  
Overall Buckling

Pitting corrosion, an extremely localized corrosion that leads to the creation of small holes in metal when a protective coating is damaged could trigger structural failure in platform structures. A single pit in a critical point, especially in compression element, can cause a great deal of reduction in overall buckling capacity of the structure. This study aims to indicate the effect of a circular cutout, representing a pitting corrosion on overall buckling capacity of steel pipe truss structure subject to static loading. Five models of truss structure having a circular cutout on their compression elements had been tested experimentally up to failure. The truss structures were made of steel pipes and contain only 2 elements as representation of part of real platform. The single cutout were located at 0.5L, 0.25L and 0.125L, where L is the length of the compression element. Two models without cutout had been used as control models. The overall buckling capacity of the truss were compared to similar truss based on the element buckling of compression element. The experimental test results, represented by nonlinear load deflection curves and their associated critical loads as well as buckling modes, had been verified numerically by eigenvalue and geometric nonlinear finite element analyses utilizing 3D solid elements on ABAQUS. The results showed that: (a) in the truss model with various hole positions, the overall buckling loads were slightly higher than that of element buckling loads: (b) the presence of cutout reduced the overall buckling capacity of the structure, (c) the capacity reduction factors depend on the cutout locations and (d) the lowest capacity reduction factor of 0.882 was associated with the presence of cutout at the middle of compression element.

Emulational Calculation of Concrete Perfusion in Steel-Pipe Arch Rib of a Large-Span Bridge

2011 ◽  
Vol 71-78 ◽  
pp. 1488-1494
Author(s):  
Ying Hua Bai ◽  
Mu Yu Liu ◽  
Tian Qing Yu
Keyword(s):  
Steel Pipe ◽  
Structural Deformation ◽  
Structural Safety ◽  
Arch Bridge ◽  
Large Span ◽  
Commercial Package ◽  
Structural Responses ◽  
Bearing Force ◽  
Deformation Stress ◽  
Force Characteristics

The bridge is a half-through steel-pipe concrete arch bridge with uniform catenary. Based on sufficiently considering the principle of symmetrically loading rib concrete, the pouring process of the whole concrete is calculated with emulation with the aiding of commercial package MIDAS/Civil. By analyzing the structural deformation, stress and stability, the structural responses such as the structural distortion deformation, bearing-force characteristics and stability coefficients at different construction stages are computed in this study. The motivation of this investigation is to ensure the structural safety, and the structural security can also be discussed. The made observations indicate that the whole bridge has a high safety in either construction or operation and the achievement of research may provide reference for the similar arch bridge.

Analysis of Stress in Construction Monitoring of Long - Span Concrete Bridge

2017 ◽  
Vol 1 ◽  
pp. 6
Author(s):  
Jianwei Li
Keyword(s):  
Concrete Bridges ◽  
Concrete Bridge ◽  
Construction Technology ◽  
Construction Process ◽  
Stress Monitoring ◽  
Construction Monitoring ◽  
Technology Application ◽  
Large Span ◽  
Long Span

In order to improve the quality of the relevant construction development activities and effectively meet the special requirements of the design and construction of large span concrete bridges, the safety, effectiveness and economy of the bridge are fully enhanced. In this paper, the spatial structure of the long span concrete bridge is very special. As well as environmental adaptability, technical staff should be based on the development of large and span concrete bridge construction activities of the actual needs of large-span concrete bridge for scientific design and planning, but also the construction technology application activities for scientific supervision. The purpose of this paper is to explore the scientific and efficient application of stress monitoring in the construction process of large span concrete bridge under the guidance of the relevant theory of construction from the perspective of stress monitoring, so as to ensure the accuracy of construction activities and promote the development of bridge orderly development.

Research on Deformation Monitoring of Large Span Hyperbolic-Paraboloid Composite Torsional Shell

2010 ◽  
Vol 163-167 ◽  
pp. 2819-2823
Author(s):  
Hui Deng ◽  
Guang Jian Xiao ◽  
Yu Cao
Keyword(s):  
Deformation Monitoring ◽  
Type Structure ◽  
Hyperbolic Paraboloid ◽  
Construction Monitoring ◽  
Large Span ◽  
Long Span ◽  
Deformation Parameters ◽  
New Type ◽  
Measured Deformation ◽  
Construction Optimization

Long span hyperbolic-paraboloid composite torsional shell is a new type structure. In order to find out actual deformation of the roof during construction, monitoring is carried out based on deformation monitoring scheme that was put forward in this paper, and deformation parameters and characteristic of the roof are obtained. It is proved that the measured deformation values are basically consistent with the simulation calculations, and the results show that the scheme is correct and feasible, meanwhile, all of monitoring results are helpful for future analog calculation, design and construction optimization of similar project.

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