Combined bridge tower steel-concrete combined section structure, bridge and construction method: Fid-Bau Portal

Combined bridge tower steel-concrete combined section structure, bridge and construction method

GAO ZONGYU / ZHANG QIANG / HUANG XIJUN / LIU HANSHUN / WANG DONGHUI / LUO KOU / YANG CANWEN / LIU JIE / YANG XUEQI / CHEN ZHITAO

Abstract

The invention relates to a combined bridge tower steel-concrete combined section structure, a bridge and a construction method. The combined bridge tower steel-concrete combined section structure comprises a concrete tower column; the steel tower column is connected with the concrete tower column through a steel-concrete combined section; the steel-concrete combined section comprises a steel outer wall plate and a pressure-bearing steel plate arranged at the top of the steel outer wall plate, and the steel outer wall plate and the pressure-bearing steel plate define a space filled with a concrete structure; the pressure-bearing steel plate protrudes or sinks in the direction close to the concrete tower column or the steel tower column, or the pressure-bearing steel plate obliquely extends relative to the axis of the concrete tower column. When the concrete structure in the steel-concrete combined section is poured from bottom to top, the contact area of the concrete structure and the pressure-bearing steel plate is gradually increased along with the rising of the height of the top of the concrete structure, internal air can be discharged by the concrete structure more easily, and the compactness of the internal concrete structure is easily guaranteed.

本发明涉及一种组合桥塔钢‑混结合段构造、桥梁及施工方法，其包括：混凝土塔柱；钢塔柱，其通过钢‑混结合段与所述混凝土塔柱连接；钢‑混结合段，其包括钢外壁板以及设置于所述钢外壁板顶部的承压钢板，所述钢外壁板和所述承压钢板围成灌注有混凝土结构的空间；所述承压钢板向靠近所述混凝土塔柱或所述钢塔柱的方向凸伸或凹陷，或者所述承压钢板相对于所述混凝土塔柱的轴线倾斜延伸。在由下而上浇筑钢‑混结合段内部的混凝土结构时，随着混凝土结构顶部高度的上升，混凝土结构与承压钢板的接触面积是逐渐变大，更有利于混凝土结构将内部空气的排出，容易保证内部混凝土结构的密实。

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