Analysis of strain measurements in large span soil-steel bridge structure

Author(s):  
Czesław Machelski ◽  
Adam Czerepak ◽  
Piotr Tomala
2021 ◽  
Vol 2 (1) ◽  
Author(s):  
Renda Zhao ◽  
Kaifeng Zheng ◽  
Xing Wei ◽  
Hongyu Jia ◽  
Haili Liao ◽  
...  

AbstractBridge construction is one of the cores of traffic infrastructure construction. To better develop relevant bridge science, this paper introduces the main research progress in China and abroad in 2020 from 16 aspects. The content consists of four major categories in 16 aspects. The first part is about the bridge structure, including concrete bridge and high-performance materials, steel bridges, composite girders. The second part is about the bridge disaster prevention and mitigation, including bridge seismic resistance, wind resistance of bridge, train-bridge coupling vibration research, bridge hydrodynamics, the durability of the concrete bridges, fatigue of steel bridge, temperature field and temperature effect of bridge; The third part is about the bridge analyses, including numerical simulation of bridge structure, box girder and cable-stayed bridge analysis theories. The last part is concerning the bridge emerging technologies, including bridge informatization and intelligent bridge, the technology in bridge structure test, bridge assessment and reinforcement, prefabricated concrete bridge structure.


2014 ◽  
Vol 1020 ◽  
pp. 215-220 ◽  
Author(s):  
Roman Fojtík ◽  
Tomáš Novotný ◽  
Iveta Skotnicova ◽  
Martin Stolárik ◽  
Naďa Zdražilová ◽  
...  

The paper deals with both the theoretical aspects and the practical experience with temporary steel bridge dynamic analysis. Since the moment people built the first bridge it became necessary to replace it in case of natural disasters like wind storms, floods, earthquakes, tsunami or wars and terrorist attacks. As a construction of a stable bridge lasts for a long time, the solution is a temporary bridge - a steel bridge structure designed especially for fast and repeated assembly and disassembly. The paper presents experimental analysis of steel bridge dynamic properties. The experimentally measured results are compared to theoretically calculated ones. Besides frequency analysis of supporting structure, the noise of the bridge during car passes is also measured and analyzed as nowadays traffic noise becomes a more and more important aspect, especially in case of temporary bridges. The bridge measurements are repeated for a clear bridge and for a bridge with anti-vibration mats attached to compare the arrangement results in decrease of traffic noise and the dynamic load of the bridge.


2014 ◽  
Vol 1004-1005 ◽  
pp. 1460-1463
Author(s):  
Xiu Li ◽  
Ming Hui Su

The experimental studies on self-compacting and tiny expanding concrete filled in steel tube are introduced, which including the measurement of low ability of mixtures, the proportioning of the concrete filled in steel tube. The self-compacting and tiny expanding steel tube concrete has been applied in a large span bridge structure. The state of construction shows that the concrete have a good pump ability, a small loss of slump, a high strength early strength and a better self-compacting property.


2013 ◽  
Vol 639-640 ◽  
pp. 239-242
Author(s):  
Jian Hua Cheng ◽  
Jian Min Xiong ◽  
Jin Zhi Zhou

Orthotropic plate participates in bridge structure as a part of steel box girder, while in Balinghe Bridge it is used as bridge deck directly to endure the wheel load [1]. In this paper it’s studied systematically the mechanical behavior of orthotropic steel bridge deck in combination with the deck model of Balinghe Bridge, and shows the positions emerging fatigue cracks to provide the basis for future health monitoring and put forward some suggestions.


2021 ◽  
Vol 879 ◽  
pp. 151-168
Author(s):  
Van Khai Nguyen ◽  
Nghia Dai Van ◽  
Van Tuong Khanh Vo ◽  
Rin Anh Nguyen ◽  
Phuc Gia Nguyen ◽  
...  

Steel bridge structure without intermediate bracing system (IBS) has been widely used in several countries and one of them is Japan. In this type of structure, the main steel girder is not reinforced by the stiffeners. The stiffness of the main girder is enhanced with steel plate directly welded to the top flange of the main girder, forming the “beams–system”. The reinforced concrete deck slab with the set of main girder and steel plate works compositely through steel shear connectors whose shape is C (channel) or I character. As for steel bridge structures, the main role of shear connectors is shear resistance between the concrete deck slab and steel girder plate in the exploitation stage. However, previous research has shown that the density of shear connectors influences on the stability as well as the stiffness of the bridge structure. Therefore, it has approved that this appurtenance is able to not only have the ability of shear resistance but also enhance the stiffness of the steel bridge structure which is particularly surveyed with the type of especial bridge structure – the steel bridge structure without IBS. Hence, the shear connectors in this kind of bridge structure are deliberately researched as an extra role in the construction stage. The following factors of the channel shape shear connectors would be researched for evaluating their impacting level on the stability of the special steel bridge structure: the properties (the length and the moment of inertia of the cross-section) and the density on the steel plate. Through the analysis of impacting level to the stability of three mentioned factors (the length and density of the shear connectors; the moment of inertia of the cross-section), the expected result is as following: 1) The minimum density of shear connectors is proposed. 2) The influence of the moment of inertia of the cross-section, the density, and the length on the stability is quite clear. 3) As for the economy, the optimal designed range among three factors is also suggested.


ce/papers ◽  
2017 ◽  
Vol 1 (2-3) ◽  
pp. 4283-4292 ◽  
Author(s):  
Yushu Liu ◽  
Guobiao Lou ◽  
Xiaochen Ju ◽  
Xiaoguang Liu

2017 ◽  
Vol 22 (10) ◽  
pp. 06017002 ◽  
Author(s):  
Alireza Sanaeiha ◽  
Mohammad Rahimian ◽  
Mohammad Sadegh Marefat
Keyword(s):  

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