Damage-controllable self-resetting section prefabricated assembled steel pipe concrete bridge pier and manufacturing method thereof

Abstract

The invention discloses a damage-controllable self-resetting section prefabricated assembled steel pipe concrete bridge pier and a manufacturing method thereof, and belongs to the field of bridge engineering. An exposed node connecting piece consists of a foot plate, anchor bolts, end connecting plates and buckling restraining sleeves. A connecting plate is mounted between prefabricated steel pipe concrete sections through high-strength bolts; the exposed node connecting piece is connected with each of a cover beam and a bearing platform by utilizing the anchor bolts, and is connected with a prefabricated steel pipe concrete section through the high-strength bolts relying on the end connecting plates. A pre-stressed tendon penetrates through a section prefabricated steel pipe concrete pier; the two ends of the pre-stressed tendon are respectively anchored to the interiors of the bearing platform and the cover beam by using anchorage devices. The energy consumption-controllable self-resetting section prefabricated assembled steel pipe concrete bridge pier disclosed by the invention has the characteristics of small post-seismic residual displacement, high energy consumption capacity, controllable energy consumption, high assembling degree, convenience and quickness in construction process, greenness, high efficiency, energy conservation, environment friendliness, easiness in factory production, convenience and quickness in construction, and the like; the construction period of the pier can be remarkably shortened.

Description

technical field [0001] The invention belongs to the field of bridge engineering, and in particular relates to a damage-controllable segmental prefabricated assembled steel pipe concrete bridge pier and a method thereof. Background technique [0002] With the development of social economy, people pay more and more attention to the quality of life. In recent years, problems such as urban traffic congestion, poor air quality, and serious air pollution have brought serious adverse effects on people's production and life. With the rapid economic development of large cities / urban agglomerations, the traffic carrying capacity of the existing transportation infrastructure is insufficient or the structural performance is seriously degraded. It is urgent to build or rebuild key transportation infrastructure such as urban roads and bridges. At present, the construction of urban bridges based on cast-in-place structures will inevitably have serious adverse effects on the surrounding tr...

AI Technical Summary

Problems solved by technology

However, at present, there are very few R&D and applications of CFST in bridge piers, and domestic and foreign researchers and engineers have less research and engineering practice on segmental prefabricated CFST bridge piers.

Images