Appraised
Certificate |
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Frame
of System |
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Start
Interface |
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Interface
of Data Input |
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Contents
and Results of Calculation |
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Honor
Certificate |
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This
system is one of the achievements of "Key Technology Research & Development
of Humen Suspension Bridge's Superstructure Construction" commissioned
by the Ministry of Communications,including the research of
construction control and survey of superstructure and the
research of steel box-girder segment spanning and erecting
program . SBCC is specially used in suspension bridge
construction analysis and can be used to analyze the initial
position of suspension construction, decide working length of
main cable or suspenders, decide cable's initial position in unload
state. And it also can be used for real-time tracing and analysis
during the course of suspension bridge construction. With the
survey results and the parameter identification, you can work
out the control point's height, displacement, force and stress
at each of the construction phases. This system was actually
used in the Humen suspension bridge. The calculation result is
well fit to its 1/80 static force model test and the survey at
each of the main control stages in the construction. It played
an important role in deciding cable's initial position,
calculating the non-stress working length of main cable and
suspender, analyzing the alignment of the main cable and
stiffening girder in steel box beam installation, as well as
analysis
for loading scheme in the final examination and acceptance
of Humen suspension bridge before opened to the traffic. This
system has windows interface with good intelligent and highly
dynamic visualized. SBCC can be used to conduct retrogressive
cycle analysis of suspension bridge with single-span simple
support beam, three span simple supported beam or three span
continuous stiffening girder. This system is capable of taking
into consideration of the gradual formation and transformation
of the structural system, loading of structural dead weight
by phases,continuous change of construction loads and temperature
field, the displacement adjustment between tower top and cable
saddle according to the requirement at designated construction
phase, the influence of tangent point of main cable and main
cable saddle, the connection of main cable saddle with tower
pier, the connection of the other cable saddles with main cable,
the connection of stiffening girder with tower pier, the
elements' stiffness of the stiffening girder and its dead weight, the influence
of tower pier and pile footing's stiffness etc. And it is also
capable of calculating the initial state of structure and the
internal forces ,stress of structure, coordinates and displacement
in each of construction phases. |