Study on the Mechanical Behavior of Long-Span Steel Truss Transfer Storey

2013 ◽  
Vol 838-841 ◽  
pp. 219-226
Author(s):  
Ming Wei He
Keyword(s):  
Mechanical Behavior ◽  
Concrete Beam ◽  
Deformation Analysis ◽  
Steel Girder ◽  
Load Effect ◽  
Long Span ◽  
Steel Material ◽  
Staged Construction ◽  
Steel Truss ◽  
Stress And Deformation

The analysis to the staged construction of the long span steel transfer truss was performed. The focus was on the stress and deformation analysis of the transfer truss, the interactions of the transfer member with the concrete tube, and the combination analysis of the steel girder and concrete beam. It was proved that the method of staged construction can get the good result that can make full use of the characteristic of the steel material, make steel truss bear more load effect in the construction stage. So the load to the concrete tube is lessened, which makes the load effect of the structure is more rational. Some advices for the construction and design of steel transfer truss is also provided. Keywords:Steel truss; Transfer story; Staged Construction.

The monitoring of temperature differences between steel truss members in long-span truss bridges compared with bridge design codes

2018 ◽  
Vol 22 (6) ◽  
pp. 1453-1466 ◽  
Author(s):  
Gaoxin Wang ◽  
Youliang Ding ◽  
Xingwang Liu
Keyword(s):  
Evaluation Method ◽  
Thermal Action ◽  
Transfer Characteristic ◽  
Primary Concern ◽  
Truss Bridges ◽  
Long Span ◽  
Steel Material ◽  
Steel Truss ◽  
Bridge Structures ◽  
Steel Truss Bridges

The temperature differences in bridge structures have been one primary concern for bridge engineers and researchers. In the traditional view, the temperature differences between steel truss members are treated as uniform because of the good heat transfer characteristic of steel material and the shading effect of deck coverage. However, for some steel truss bridges, some truss members are directly exposed to solar radiation, while some other truss members are totally shaded by steel decks, which may cause obvious temperature differences between them, so it is reasonable to doubt the correctness of uniform temperature existing between steel truss members. In this research, the temperature differences between steel truss members in two long-span truss bridges are analyzed using long-term temperature field data, and after analysis, the temperature differences which contain obvious positive or negative values are made clear. Furthermore, the evaluation method of temperature differences in bridge service life for thermal action design is put forward together with the determination method of probability density function, and the evaluated temperature differences are further obtained after probability statistics analysis. Finally, the evaluated temperature differences are classified by sun radiation and steel deck coverage, and then compared with the specified values in the three specifications. The research results can provide important reference for current specifications and structural design, especially for steel truss bridges.

Structure-borne noise from long-span steel truss cable-stayed bridge under damping pad floating slab: Experimental and numerical analysis

2020 ◽  
Vol 157 ◽  
pp. 106988 ◽  
Author(s):  
Lin Liang ◽  
XiaoZhen Li ◽  
Jing Zheng ◽  
KangNing Lei ◽  
Hongye Gou
Keyword(s):  
Numerical Analysis ◽  
Cable Stayed Bridge ◽  
Long Span ◽  
Steel Truss

Investigation of Strength and Dynamic Characteristics for the Rolling Mill

2013 ◽  
Vol 706-708 ◽  
pp. 1405-1408
Author(s):  
Xi Ping Guo ◽  
Shuang Zhou
Keyword(s):  
Natural Frequency ◽  
Dynamic Characteristics ◽  
Rolling Mill ◽  
Maximum Stress ◽  
Weak Link ◽  
Deformation Analysis ◽  
Vibration Model ◽  
Strength And Stiffness ◽  
Stress And Deformation ◽  
Diagram Analysis

Stress and deformation analysis of 950 mill housing was done by means of ANSYS to calculate the maximum stress and deformation. Strength and stiffness of the mill roll were checked to meet requirements. Carries on the modal analysis to the rolling-mill housing, obtains its first 10 steps the natural frequency and the mode of vibration, through the vibration model diagram analysis frame of the weak link,and it is significant for similar mill housing designs.

Vehicle Load Effect of Long-Span Bridges

2015 ◽  
Vol 2481 (1) ◽  
pp. 132-139 ◽  
Author(s):  
Jun Wu ◽  
Fei Yang ◽  
Wanshui Han ◽  
Liujie Wu ◽  
Qiang Xiao ◽  
...  
Keyword(s):  
Load Effect ◽  
Long Span Bridges ◽  
Long Span ◽  
Vehicle Load

scholarly journals Modeling of strains and stresses of material nanostructures

2009 ◽  
Vol 57 (1) ◽  
pp. 41-46
Author(s):  
G. Szefer ◽  
D. Jasińska
Keyword(s):  
Materials Science ◽  
Discrete Systems ◽  
Deformation Analysis ◽  
Model Description ◽  
Atomic Interactions ◽  
Stress And Deformation ◽  
Material Points ◽  
Graphite Sheets ◽  
Intense Research ◽  
Nanoscale Level

Modeling of strains and stresses of material nanostructuresStress and deformation analysis of materials and devices at the nanoscale level are topics of intense research in materials science and mechanics. In these investigations two approaches are observed. First, natural for the atomistic scale description is based on quantum and molecular mechanics. Second, characteristic for the macroscale continuum model description, is modified by constitutive laws taking atomic interactions into account. In the present paper both approaches are presented. For a discrete system of material points (atoms, molecules, clusters), measures of strain and stress, important from the mechanical viewpoint, are given. Numerical examples of crack propagation and deformation of graphite sheets (graphens) illustrate the behavior of the discrete systems.

Construction Monitoring on Steel Truss Bridge’s Maintenance and Reinforcement

2018 ◽  
Vol 878 ◽  
pp. 89-94 ◽  
Author(s):  
Er Lei Wang
Keyword(s):  
Simulation Analysis ◽  
Analysis Model ◽  
Element Analysis ◽  
Construction Monitoring ◽  
Finite Element Analysis Model ◽  
Bridge Steel ◽  
Steel Truss ◽  
Stress And Deformation ◽  
Site Test

Implementing monitoring over construction process of old bridge’s reinforcement serves as an important measure to ensure construction quality and safety and realize the goal of reinforcement. This paper, with a case study of the maintenance and reinforcement project of Zhicheng Yangtze River Bridge (steel truss highway-railway combined bridge), adopted MIDAS to establish finite element analysis model, and with stress and deformation as monitoring parameters, completed the construction monitoring work, numerical simulation analysis and site test for the reinforcement project.

Stress and deformation analysis on deep surrounding rock at different time stages and its application

2012 ◽  
Vol 22 (3) ◽  
pp. 301-306 ◽  
Author(s):  
Ming Li ◽  
Xianbiao Mao ◽  
Yuanlin Yu ◽  
Kai Li ◽  
Chao Ma ◽  
...  
Keyword(s):  
Surrounding Rock ◽  
Deformation Analysis ◽  
Stress And Deformation

Stress and deformation analysis of functionally graded varying thickness profile orthotropic rotating disk

2020 ◽  
Vol 33 ◽  
pp. 5455-5460
Author(s):  
Lakshman Sondhi ◽  
Amit Kumar Thawait ◽  
Subhashis Sanyal ◽  
Shubhankar Bhowmick
Keyword(s):  
Rotating Disk ◽  
Functionally Graded ◽  
Deformation Analysis ◽  
Thickness Profile ◽  
Varying Thickness ◽  
Stress And Deformation
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