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Dongying Yellow River Bridge Span Continuous Beam Integrated technology

To identify and predict these parameters. Significant design parameters for the error, draw designer to modify the theoretical design values for the parameters of conventional errors adjusted through optimization. 6.2.1 Calculation of the main bridge with linear control theory developed by Professor Yan Donghuang Changsha University of the long span bridge design calculations and control analysis software BDCMS determined by reviewing design calculations and construction of bridge condition state, the use of Bridge Doctor software review. According to the construction and design as determined by the construction process, and design provided by the drawings and other design parameters, the construction process of a formal dress calculation, by the construction of state and into a bridge state of the internal force (or stress-strain) and deformation control data. And design of each other after confirmation as proof of a continuous composite rigid frame bridge construction control theory trajectory. Specific data as follows. (1) the construction of the bridge into the state of the state and the state variables of theoretical data: the main beam elevation,[link widoczny dla zalogowanych], the control section stress and strain. (2) The theoretical value of construction control data: formwork elevation. 6.2.2 Internal Forces and the main bridge health monitoring to make the bridge operational monitoring, to ensure bridge safety, the normal construction and operation of internal force monitoring include: measurement of shear lag effect in box girder, box girder stress measurement of abdominal moderators, box pre-and post-beam beam beam in prestressed anchor and anchor the anterior area of the principal stress after the measurement, under the curved roof box on the beam and the floor (on the next page No. l6) District, the main cross beam bending stress measurement,[link widoczny dla zalogowanych], the effective vertical box PC measurement, gear box girder prestressed anchorage block local stress measurements. Through the closure after the static and dynamic tests and the normal operation of the state of nearly 2 years health tests, showing the main bridge internal forces and design of forecasting fundamental consistent with the overall good performance, in a flexible working condition,[link widoczny dla zalogowanych], structural strength,[link widoczny dla zalogowanych], stiffness, load capacity to meet the design requirements. 7 Conclusion currently Dongying Yellow River Bridge opened to traffic cantilever beam has been in operation, the average construction period box 10d, box good quality control, linear and smooth, consistent with the design, construction and operation of internal forces of the state in good agreement with the design of the Bridge has been named Taishan in Shandong Province and the State Cup Luban projects have achieved good reputation in the community, the construction of similar projects with a certain significance.

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