Turkish Solar Radiation Zones for Segmental Box Girder Bridge Design Under Temperature Gradient Loading

2015 ◽  
pp. 77-89
Author(s):  
A. I. Yilmaz ◽  
U. Albostan ◽  
A. Caner ◽  
O. Kurc
Keyword(s):  
Temperature Gradient ◽  
Solar Radiation ◽  
Bridge Design ◽  
Box Girder ◽  
Box Girder Bridge ◽  
Girder Bridge

scholarly journals Temperature Field Boundary Conditions and Lateral Temperature Gradient Effect on a PC Box-Girder Bridge Based on Real-Time Solar Radiation and Spatial Temperature Monitoring

Sensors ◽  
2020 ◽  
Vol 20 (18) ◽  
pp. 5261
Author(s):  
Xiao Lei ◽  
Xutao Fan ◽  
Hanwan Jiang ◽  
Kunning Zhu ◽  
Hanyu Zhan
Keyword(s):  
Temperature Distribution ◽  
Temperature Gradient ◽  
Solar Radiation ◽  
Prediction Model ◽  
Monitoring Data ◽  
Radiation Boundary Condition ◽  
Box Girder ◽  
Box Girder Bridge ◽  
Girder Bridge ◽  
Lateral Temperature

Climate change could impose great influence on infrastructures. Previous studies have shown that solar radiation is one of the most important factors causing the change in temperature distribution in bridges. The current temperature distribution models developed in the past are mainly based on the meteorological data from the nearest weather station, empirical formulas, or the testing data from model tests. In this study, a five-span continuous Prestressed-concrete box-girder bridge was instrumented with pyranometers, anemometers, strain gauges, displacement gauges, and temperature sensors on the top and bottom slabs and webs to measure the solar radiation, wind speeds, strain, displacement, and surface temperatures, respectively. The continuously monitoring data between May 2019 and May 2020 was used to study the temperature distributions caused by solar radiation. A maximum positive lateral temperature gradient prediction model has been developed based on the solar radiation data analysis. Then, the solar radiation boundary condition obtained from the monitoring data and the lateral temperature gradient prediction model were utilized to compute the tensile stresses in the longitudinal and transverse directions. It was demonstrated in this study that the tensile stress caused by the lateral temperature gradient was so significant that it cannot be ignored in structural design.

Small and Medium Single-Box Multi-Room Continuous Box Girder Bridge Design and Calculation Method

2011 ◽  
Vol 63-64 ◽  
pp. 461-464
Author(s):  
Xue Gui ◽  
Jian Wei Song ◽  
Xing Nai Wang ◽  
Hong Jing Du
Keyword(s):  
Calculation Method ◽  
Bridge Engineering ◽  
Practical Application ◽  
Bridge Design ◽  
Box Girder ◽  
Advantages And Disadvantages ◽  
Box Girder Bridge ◽  
Girder Bridge ◽  
Bridge System

This paper summarizes a variety of designing and calculating methods of Small and Medium Single-box Multi-room Continuous Box Girder bridge system that used widly in bridge engineering in current. On the basis of careful research and comparison on a variety of designing methods, this paper proposes the advantages and disadvantages of these calculating methods in practical application of theory, proposes the important insights about the developing and perfection direction in the calculating methods, shows clearly the direction on the further research of the designing and calculating methods of the Small and Medium Single-box Multi-room Continuous Box Girder Bridge.

Research of Temperature Field of Long Span Concrete Box Girder Bridge Caused by Solar Radiation

2012 ◽  
Vol 256-259 ◽  
pp. 1635-1639
Author(s):  
Cun Ren Jiang ◽  
Jian Min Ren ◽  
Zhuo Ling Wang
Keyword(s):  
Temperature Field ◽  
Temperature Gradient ◽  
Solar Radiation ◽  
Structure Design ◽  
Box Girder ◽  
Qinghai Province ◽  
Long Span ◽  
Concrete Box Girder ◽  
Girder Bridge ◽  
Bottom Slab

When stimulate temperature field of concrete box girder caused by solar radiation with ANSYS, it’s feasible to turn boundary conditions to third boundary condition. Taking Ping'an Huangshui River Super-large Bridge in Qinghai Province for example, the research analyzes box girder temperature field distribution and deduces realistic temperature gradient mode by comparing calculations with measurements. Calculations show that bottom slab of box girder also has quite big temperature gradient which should be taken seriously in bridge structure design.

scholarly journals Accelerated optimization method for low-embodied energy concrete box-girder bridge design

2019 ◽  
Vol 179 ◽  
pp. 556-565 ◽  
Author(s):  
Vicent Penadés-Plà ◽  
Tatiana García-Segura ◽  
Víctor Yepes
Keyword(s):  
Optimization Method ◽  
Embodied Energy ◽  
Bridge Design ◽  
Box Girder ◽  
Concrete Box Girder ◽  
Box Girder Bridge ◽  
Girder Bridge

A Comparative Research on Thermal Stresses Calculated from Different Element Models of a Concrete Continuous Box-Girder Bridge

2008 ◽  
Vol 400-402 ◽  
pp. 923-928
Author(s):  
Feng Xu ◽  
Bo Wang ◽  
Hai Long Zhang
Keyword(s):  
Thermal Stress ◽  
Thermal Stresses ◽  
Element Model ◽  
Numerical Results ◽  
Solid Model ◽  
Beam Model ◽  
Bridge Design ◽  
Box Girder ◽  
Box Girder Bridge ◽  
Girder Bridge

According to the definition about the positive and negative gradient temperature distribution of structural cross section in the Chinese bridge design specification of General Code for Design of Highway Bridge and Culverts (JTG D60-2004), same temperature loads are applied to beam model and solid model of a typical there-span prestressed concrete continuous box-girder bridge to compare the numerical results of thermal stresses calculated from the two finite element models. The beam model is built through professional software Doctor Bridge that is prevailing in China for structural static analysis of bridge design, while the solid model is built using ANSYS. Between the two models, the numerical results of total thermal stress regarded to be added up with self-restrained stress and secondary stress are compared. The results from solid model are found to be much more conservative than from element model. The identity and diversity of the two series of results and the reasons for the generation of the diversity are expounded. It is recommended that the thermal stress calculated from solid model be better to be taken into account in a design so as to examine or amend the results that calculated through the professional software based on bar system FEM theory.

COMPARATIVE STUDY OF PSC BOX GIRDER BRIDGE DESIGN USING IRC 112-2011 AND IRC 18-2000

2016 ◽  
Vol 5 (2) ◽  
pp. 1
Author(s):  
SHREEDHAR R ◽  
PATIL SHREYANSH ◽  
◽  
Keyword(s):  
Comparative Study ◽  
Bridge Design ◽  
Box Girder ◽  
Box Girder Bridge ◽  
Girder Bridge

scholarly journals Temperature Field and Gradient Effect of a Steel-Concrete Composite Box Girder Bridge

2021 ◽  
Vol 2021 ◽  
pp. 1-16
Author(s):  
Haoxu Li ◽  
Zhiguo Zhang ◽  
Nianchun Deng
Keyword(s):  
Temperature Field ◽  
Temperature Gradient ◽  
Element Model ◽  
Local Temperature ◽  
Measured Temperature ◽  
Box Girder ◽  
Measuring Point ◽  
Box Girder Bridge ◽  
Girder Bridge ◽  
Gradient Mode

To study the effect of the temperature field and gradient of a steel-concrete composite box girder bridge, a 5 × 35 continuous composite box girder bridge is used as the research object. The temperature measuring point is set by selecting a typical cross section, and the temperature change data are measured. The temperature field of the different positions in the composite box girder bridge is studied, the global and local temperature differences are compared, and the law of temperature distribution and the main factors affecting the temperature field are formulated. The most unfavourable expression function of the vertical temperature gradient of the section is simulated using the measured data, the existing standard temperature gradient mode is compared, the finite element model of the bridge is established, and the influence of the actual temperature gradient mode on the stress and deformation of the composite girder is further analysed. The conclusions show that the temperature differences of different azimuth sections and the local temperature differences between the steel and concrete joint parts of the steel-concrete composite box girder bridge are not significant. The temperature gradient heating and cooling model fitted by the measured temperature field can be used as a reference for the structural design of similar local bridges.

Design and Application of PC Composite Box-Girder Bridge with Corrugated Steel Webs

2011 ◽  
Vol 71-78 ◽  
pp. 1168-1172 ◽  
Author(s):  
Da Long Ren ◽  
Shui Wan
Keyword(s):  
Prestressed Concrete ◽  
Yellow River ◽  
Structure Characteristic ◽  
Shear Connector ◽  
Bridge Design ◽  
Box Girder ◽  
Composite Girder ◽  
Box Girder Bridge ◽  
Corrugated Steel Web ◽  
Girder Bridge

The structure characteristic of prestressed concrete(PC) composite box-girder with corrugated steel webs is introduced, and the advantage is shown compared to PC girder bridge. Design of PC composite girder bridge with corrugated steel webs is introduced, contents including corrugated steel webs, shear connector, etc. The domestic application and development of PC composite box-girder bridge with corrugated steel web is reviewed, and part of the typical bridges combined with corrugated steel web PC box-girder are listed. On behalf of PC composite box-girder bridge with corrugated steel web, Shandong Juancheng Yellow River Bridge is introduced in detail. At last, the future of this type of bridge is prospected.

Rehabilitation of the Boivre Viaduct - A Multispan Prestressed Box Girder Bridge

PCI Journal ◽  
1986 ◽  
Vol 31 (3) ◽  
pp. 22-47 ◽  
Author(s):  
Charles C. Zollman ◽  
Serge H. Barbaux
Keyword(s):  
Box Girder ◽  
Box Girder Bridge ◽  
Girder Bridge
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