Prestressed full-dry type connection assembly type concrete frame beam-column joint: Fid-Bau Portal

Prestressed full-dry type connection assembly type concrete frame beam-column joint

YANG HUI / GUO ZHENGXING

The invention discloses a prestressed full-dry type connection assembly type concrete frame beam-column joint. The prestressed full-dry type connection assembly type concrete frame beam-column joint comprises a prefabricated concrete column, prefabricated concrete beams and prestressed tendons. The prefabricated concrete column and the prefabricated concrete beams on the two sides of the prefabricated concrete column are tensioned and pressed through the prestressed tendons penetrating through a beam-column joint area, and the full-dry type connection beam-column joint is formed. Longitudinal energy-consuming steel bars on the upper portions and the lower portions of the prefabricated beams do not pass through a joint column section of the prefabricated concrete column and are directly anchored at the beam ends in the modes of bending, anchoring plates and the like. According to the beam-column joint, under the earthquake action, plastic hinge outward movement is achieved through special structure measures near the ends of the prefabricated concrete beams, and structural damage is made to be away from beam-column joints. Accordingly, the joint connecting structure is simplified, the assembly type concrete frame structure mounting efficiency is improved, and the structural stress performance is improved.

本发明公开一种预应力全干式连接装配式混凝土框架梁柱节点，包括预制混凝土柱、预制混凝土梁和预应力筋。预制混凝土柱及其两侧的预制混凝土梁通过穿过梁柱节点区的预应力筋张拉压接，形成全干式连接梁柱节点；预制梁上下部纵向耗能钢筋不通过预制混凝土柱的节点柱段，通过弯折、锚固板等形式直接锚固的在梁端；梁柱节点在地震作用下，通过预制混凝土梁端部附近的特殊构造措施实现塑性铰外移，使结构损伤远离梁柱接缝处。从而简化了接缝处连接构造，提高了装配式混凝土框架结构安装效率和改善了结构受力性能。

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