The Study On Construction Technology Of Double Wall Steel Suspending Cofferdam

With the booming development of bridge construction, bridge construction often face with building bridge piper in the deep-water. It makes present construction technology of construction company of our country face with grim challenges. As a temporary construction structure, construction steel suspending cofferdam means critical importance to construction operation of deep-water piper in the construction process. During the construction process of the steel suspending cofferdam, there are many forces act on it, and people are still not very familiar with the stress-strain variation of the whole space structure and the key joints. Therefore, the paper give discussion about variation of the stress-strain by static analysis, and find out the weak jointing, put forward the reinforcement measures and the economic project design of steel suspending cofferdam.First of all, Selection of Construction Proposal for the steel suspending cofferdam was analyzed form the structural and technical perspective. At the same time, key construction techniques and Construction monitoring were studied.In chapter 4, elementary theory of finite element was analyzed, and the three-dimensional finite element is adopted to build the calculation the structural model. The author gave the analysis about load and operation. And stress-strain variation in integral lifting and pumping water process was studied. Furthermore, the author combined theories and monitor data to calculating accuracy.Finally, stress-strain analysis of the key joints based on the calculation model was made, including method of joint, effect of conformation. And stress-strain variation of the key joints in integral lifting and pumping water process was analyzed. On this basis, conclusion and design suggestions are presented. It can be referenced in future for the design of applying this kind of structure.