This project belongs to the field of civil engineering machinery design and manufacturing technology. The top-push construction method can effectively overcome the limitations of complex geological conditions, special landforms, as well as constraints on highway and railway lines, achieving uninterrupted traffic over deep valleys with minimal or no supports, etc. It is a safe, convenient, and fast bridge construction method. This project targets extreme construction requirements such as high pressure, heavy load, large inertia, and complex working environments in the construction of large complex bridge structures. It has developed advanced super-large complex structure top-push construction complete sets of equipment, achieving significant breakthroughs in high-tonnage multi-point synchronous top-push construction and ultra-long continuous multiple point top-push construction technology. It innovatively proposed technologies for large longitudinal slopes, variable curvature, and curved top-pushing, and through linear control state transfer method, it achieves adaptive self-control and millimeter-level precision control of bridge line combinations during top-push construction. Overall, this project led to technological advancements in the top-pushing construction of large and complex bridges. The following innovative achievements were made: (1) The crawler-type pushing equipment possesses longitudinal, transverse, and vertical adjustment functions as well as computer full automation control technology characteristics, capable of adapting to the top-pushing construction of bridges with planar curves and vertical curves. Based on the principle of self-balancing structures and the vertical loads on the piers, the pushing pressure values at each point are adjusted to reduce the horizontal forces on the piers. (2) The use of multi-point real-time synchronous control technology and state transfer method-based linear control technology allows for the real-time detection and correction of movement deviations, adaptively controlling the combination bridge's line shape during top-pushing construction. The axial alignment and arch bridge span of the completed bridge state achieve millimeter-level accuracy. Real-time monitoring of the piers' horizontal displacement prevents concentrated loads on the piers, reduces construction risks for bridges, and forms a complete multi-span combination structure top-pushing construction process monitoring system. (3) The step-by-step jacking equipment adopts a modular design, which is universal and scalable, suitable for various bridge construction processes. It does not require a large number of specialized temporary facilities, saving on equipment installation costs. Advanced open real-time network technology is used, eliminating the need for extensive wiring and software/hardware debugging. Synchronous balance control technology ensures uniform and reliable structural loading, avoiding the need for substantial reinforcement to the main steel structure. (4) This project has been successfully applied to more than 30 bridge projects, and the proposed technologies for large longitudinal slopes, variable curvatures, and curved jacking have achieved a 575-meter steel trough beam curve jacking project domestically and internationally for the first time. The above research achievements have applied for 14 invention patents, of which 6 have been authorized; 2 utility model patents have been authorized; and over 30 academic papers have been published. The technology and equipment proposed in this project have solved the problems of main navigation channels, The construction difficulties under environments such as railways and highways can be used for non-navigable bridge approaches, providing reliable assurance for the quality of major complex bridge construction. It significantly improves construction efficiency and reduces construction costs, serving as a good demonstration for future similar bridge construction technology development. The key technologies of this project have reached the international advanced level, and the equipment developed is pioneering both domestically and internationally, with good prospects for industrialization.