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Tied arch bridge is a kind of arch bridge with a special form, which combines the characteristics of both arch bridge and beam bridge. It has an advantage of high strength, reasonable bearing carrier, saving in materials, multiple construction methods, attractive appearance and so on when compared with the common arch bridge and beam bridge, as a result, the tied arch bridge is an extremely competitive bridge structure. In the aspect of the research on the supervisory construction methods of the bridge construction, the Japanese engineers firstly put forward the adoption of the optimal control idea from the“least square method”. In China, Lin Yuanpei also brought forward the adoption of the accidental optimal-control-method of Kalamn filtering, the gray theory, the fuzzy theory and other control methods. So far, the“least square method”and the Kalamn filtering method have been widely adopted in China.This paper is set on the background of a huge tied arch bridge, which is named BaiSha River Bridge, and it is a part of Subway Line No.6 in GuangZhou. This paper analyzes the key problems came up in the process of supervising the construction of this Bridge. The main points of this paper are as follows:(1)According to the content and basic theory of the construction control of the tied arch bridge, this paper describes the main content of the construction supervision of the BaiSha River Bridge in details, and conducts a profound research on the theory of construction supervision.(2)This paper starts from the classification of arch bridge booms, and then analyzes 5 methods of the cable tension detection of the booms, again it describes the basic theory of frequency measurement, then sums up the procedures of measurement of cable tension by the method of vibration frequency and the influencing factors of the identification of the boom’s internal force, finally this paper summarizes the boom’s cable tension detection of the bridge.(3)Bridge’s stress and strain monitoring plays a significant role in the construction and management of the bridge. Stress monitoring are mainly conducted through the method of strain measurement and then transforming into stress by mathematical approach. Among all the stress and strain observation sensors, vibration wire strain sensor is the most widely used. (4)Among all the construction supervision items of the concrete filled steel tube bridges, alignment monitoring is the most important, because compared with internal force control, alignment monitoring belongs to macro control, and its variation is the general performance of the bridge structure. Through arranging high-accuracy monitoring and control net, this paper carefully conducts arch axis observation and orientation, monitoring of bridge floor elevation, bridge middle-line control, abutment and bridge pier construction supervision, and pier shaft deformation and subside observation.
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