Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Tooth block and pull rod combined cable bent tower anchoring structure of cable-stayed bridge
The invention discloses a tooth block and pull rod combined type cable bent tower anchoring structure of a cable-stayed bridge. The tooth block and pull rod combined type cable bent tower anchoring structure comprises a cable bent tower, stay cable anchoring tooth blocks are arranged on the inner side of the tower wall of the cable bent tower along a bridge direction; stay cable embedded pipes arearranged in the front tower wall and the rear tower wall of the cable bent tower, anchor bearing plates used for anchoring stay cables are arranged at the joints of the upper ends of the embedded pipes and the upper tooth faces of the anchoring tooth blocks, profile steel pull rods placed in the bridge direction are arranged in the cable bent tower, and the profile steel pull rods are connected with the lower tooth faces of the two tooth blocks and distributed on the two sides of the stay cable embedded pipes. And retard-bonded prestressed steel beams are arranged in four tower walls of the cable bent tower. The tooth blocks are combined with the profile steel pull rods, and the force is transmitted together with the tower wall and the tooth blocks through the shear keys. High-altitude grouting operation with the quality difficult to control is abandoned, tower column longitudinal bars are prevented from being cut by an anchor recess, construction is convenient, the quality is easy tocontrol, the stress performance of cable bent tower anchoring is improved, the construction quality of a cable bent tower anchoring structure is improved, the economical efficiency of the structure is improved, and popularization significance is achieved.
本发明公开了一种斜拉桥的齿块拉杆组合型索塔锚固结构，包括索塔，所述索塔的顺桥向塔壁内侧设置斜拉索锚固齿块，所述索塔前后塔壁内设置有斜拉索预埋管,预埋管上端与锚固齿块上齿面交接处设置有用来锚固斜拉索的锚垫板，所述索塔中设置有顺桥向放置的型钢拉杆，所述型钢拉杆连接两个齿块的下齿面且分布在斜拉索预埋管两侧。所述索塔的四个塔壁内均布置缓粘结预应力钢束。本发明中齿块与型钢拉杆相结合，通过剪力键与塔壁及齿块共同传力。本发明舍弃了质量难控的高空灌浆作业，避免了锚穴对塔柱纵筋的切割，施工方便、质量易控，改善索塔锚固的受力性能、提高索塔锚固构造的施工质量、提高结构的经济性，具有推广意义。
Tooth block and pull rod combined cable bent tower anchoring structure of cable-stayed bridge
The invention discloses a tooth block and pull rod combined type cable bent tower anchoring structure of a cable-stayed bridge. The tooth block and pull rod combined type cable bent tower anchoring structure comprises a cable bent tower, stay cable anchoring tooth blocks are arranged on the inner side of the tower wall of the cable bent tower along a bridge direction; stay cable embedded pipes arearranged in the front tower wall and the rear tower wall of the cable bent tower, anchor bearing plates used for anchoring stay cables are arranged at the joints of the upper ends of the embedded pipes and the upper tooth faces of the anchoring tooth blocks, profile steel pull rods placed in the bridge direction are arranged in the cable bent tower, and the profile steel pull rods are connected with the lower tooth faces of the two tooth blocks and distributed on the two sides of the stay cable embedded pipes. And retard-bonded prestressed steel beams are arranged in four tower walls of the cable bent tower. The tooth blocks are combined with the profile steel pull rods, and the force is transmitted together with the tower wall and the tooth blocks through the shear keys. High-altitude grouting operation with the quality difficult to control is abandoned, tower column longitudinal bars are prevented from being cut by an anchor recess, construction is convenient, the quality is easy tocontrol, the stress performance of cable bent tower anchoring is improved, the construction quality of a cable bent tower anchoring structure is improved, the economical efficiency of the structure is improved, and popularization significance is achieved.
本发明公开了一种斜拉桥的齿块拉杆组合型索塔锚固结构，包括索塔，所述索塔的顺桥向塔壁内侧设置斜拉索锚固齿块，所述索塔前后塔壁内设置有斜拉索预埋管,预埋管上端与锚固齿块上齿面交接处设置有用来锚固斜拉索的锚垫板，所述索塔中设置有顺桥向放置的型钢拉杆，所述型钢拉杆连接两个齿块的下齿面且分布在斜拉索预埋管两侧。所述索塔的四个塔壁内均布置缓粘结预应力钢束。本发明中齿块与型钢拉杆相结合，通过剪力键与塔壁及齿块共同传力。本发明舍弃了质量难控的高空灌浆作业，避免了锚穴对塔柱纵筋的切割，施工方便、质量易控，改善索塔锚固的受力性能、提高索塔锚固构造的施工质量、提高结构的经济性，具有推广意义。
Tooth block and pull rod combined cable bent tower anchoring structure of cable-stayed bridge
一种斜拉桥的齿块拉杆组合型索塔锚固结构
SU WEI (Autor:in) / DU BAOJUN (Autor:in) / LI ENLIANG (Autor:in) / LI YAN (Autor:in) / MOU ZHAOXIANG (Autor:in) / LIU LONG (Autor:in) / JI WEIQIANG (Autor:in) / ZHU XIANYI (Autor:in)
01.12.2020
Patent
Elektronische Ressource
Chinesisch
IPC:
E01D
BRIDGES
,
Brücken
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