This paper discussed the design of substructure of bridge subjected to load of train with using two codes, the first code is AASHTO code and the second is the Chinese Code. This study focuses on the substructure of the bridge design and the design manually with the two codes.
By the design of the Bridge using the codes above, we found that Chinese Code is more safely that the number of reinforcement bars more in the pile cap and pile.
Settlement of the bridge also is calculated by using the data collected from the project site, the vertical ultimate bearing capacity of pile group and the dynamic action of the train loads, by this study it can be concluded all the above are safe values.
Another analysis by using the three-dimensional Plaxis program of finite elements and many parameters calculated, the value of the maximum vertical displacement was near from the calculated value which gives another checking for the design and maintain the safe conditions for the Bridge.
Many of codes used in the world for design the bridges and many of countries have special codes for design depending on the specialty of that country and the nature, environmental conditions, effect of earth quakes etc. In the United States Bridge Engineers use AASHTO’s standard Specification for Highway Bridges and, in similar fashion or trends, German bridge engineer utilize the DIN standard and British use the BS 5400 code. In general, countries like German and United Kingdom which have developed and maintained major highway systems for a great many years possess their own national bridge standards. The AASHTO Standard Specification, however, have been accepted by many countries as the general code by which bridges should be designed.
In this paper, the design of a bridge by using two codes the AASHTO and Chinese codes. The AASHTO Code for design bridges named “American Association of State Highway and Transportation
In China there are many codes for design about 81 codes for design for all the majors in the civil engineering with serial numbers of standard, the code used for this study is (The Chinese National Standard (CNS, 2002)) , Building Foundation Design Code (GB50007-2002). The Chinese Codes for design bridges focusing on the rail-way design like:
– Fundamental Code for Design on Railway Bridge and Culvert (TB10002.1-2005).
– Code for Design of Steel Structure of Railway Bridge (TB10002.2-2005).
– Code for Design on Reinforced and Pre-stressed Concrete Structure of Railway Bridge and Culvert (TB10002.3-2005).
– Code for Design on Concrete and Block Masonry Structure of Railway Bridge and Culvert (TB10002.4-2005).
– Code for Design on Subsoil and Foundation of Railway Bridge and Culvert (TB10002.5-2005).
– Standard for Constructional Quality Acceptance of Railway Bridge and Culvert Engineering
2. Research Significance
This paper is to make a comparison between two or more codes in different countries to show the differences and similarities and advantages and disadvantages also for checking the design by the analysis and find the suitability of using the structure according to the design.