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Swivel bridge closure steel shell
According to a swivel bridge closure steel shell, the two sides of a closure section steel shell are connected with a left embedded section steel shell and a right embedded section steel shell into a whole through pressing plates and pressing nuts respectively, and embedded section steel shell stiffening ribs and closure section steel shell stiffening ribs are connected and fastened through first bolt pairs; the closure section is of a segmented structure formed by connecting at least two sections into a whole, and the sections are connected into a whole through a movable connecting structure; each embedded section is of a segmented structure formed by connecting at least two sections into a whole, and the sections are connected into a whole through a movable connecting structure. The swivel bridge closure steel shell has the advantages that the closure section is pressed on the embedded sections at the two ends through the pressing plates, the embedded sections and the closure section can be a whole or can be composed of several parts, the closure parts are connected through bolts, hole channels for penetrating through prestressing tendons and longitudinal reinforcing steel bars are reserved in transverse partition plates, the hole channels of the steel bars are arranged to be in an arch shape leading to the bottom edge, welding stress concentration can be avoided, connection is conducted through a welding-free technology, and construction can also be conducted under the working condition that the clearance under the bridge is low.
一种转体桥合龙钢壳，合龙段钢壳两侧分别与左、右预埋段的钢壳通过压紧板、压紧螺母连接为一体，预埋段钢壳加劲肋与合龙段钢壳加劲肋通过第一螺栓副连接紧固；合龙段为至少两段连接为整体的分段结构，每段的连接采用活连接结构连接成整体；预埋段为至少两段连接为整体的分段结构，每段的连接采用活连接结构连接成整体。其优点是免焊接的合龙钢壳，通过压紧板将合龙段压紧在两端的预埋段上，预埋段与合龙段可以是一个整体，也可以由几部分组成，合部分间通过螺栓连接，横隔板上预留穿过预应力束的及纵向钢筋的孔道，通过钢筋的孔道设置成通到底边的拱门形，可以避免焊接应力集中，采用免焊接技术进行连接，在桥下净空较低工况下也能施工。
Swivel bridge closure steel shell
According to a swivel bridge closure steel shell, the two sides of a closure section steel shell are connected with a left embedded section steel shell and a right embedded section steel shell into a whole through pressing plates and pressing nuts respectively, and embedded section steel shell stiffening ribs and closure section steel shell stiffening ribs are connected and fastened through first bolt pairs; the closure section is of a segmented structure formed by connecting at least two sections into a whole, and the sections are connected into a whole through a movable connecting structure; each embedded section is of a segmented structure formed by connecting at least two sections into a whole, and the sections are connected into a whole through a movable connecting structure. The swivel bridge closure steel shell has the advantages that the closure section is pressed on the embedded sections at the two ends through the pressing plates, the embedded sections and the closure section can be a whole or can be composed of several parts, the closure parts are connected through bolts, hole channels for penetrating through prestressing tendons and longitudinal reinforcing steel bars are reserved in transverse partition plates, the hole channels of the steel bars are arranged to be in an arch shape leading to the bottom edge, welding stress concentration can be avoided, connection is conducted through a welding-free technology, and construction can also be conducted under the working condition that the clearance under the bridge is low.
一种转体桥合龙钢壳，合龙段钢壳两侧分别与左、右预埋段的钢壳通过压紧板、压紧螺母连接为一体，预埋段钢壳加劲肋与合龙段钢壳加劲肋通过第一螺栓副连接紧固；合龙段为至少两段连接为整体的分段结构，每段的连接采用活连接结构连接成整体；预埋段为至少两段连接为整体的分段结构，每段的连接采用活连接结构连接成整体。其优点是免焊接的合龙钢壳，通过压紧板将合龙段压紧在两端的预埋段上，预埋段与合龙段可以是一个整体，也可以由几部分组成，合部分间通过螺栓连接，横隔板上预留穿过预应力束的及纵向钢筋的孔道，通过钢筋的孔道设置成通到底边的拱门形，可以避免焊接应力集中，采用免焊接技术进行连接，在桥下净空较低工况下也能施工。
Swivel bridge closure steel shell
转体桥合龙钢壳
LI JIANQIANG (author) / YANG FAN (author) / ZHENG ZHONGMIN (author) / LIANG HUAN (author)
2021-10-22
Patent
Electronic Resource
Chinese
IPC:
E01D
BRIDGES
,
Brücken
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