Stiff frame structure and its construction method for bridge closure
A technology of stiff skeleton and construction method, which is applied in the direction of bridges, bridge construction, erection/assembly of bridges, etc., and can solve the problem that the skeleton cannot be reused
Active Publication Date: 2016-06-08
中国建筑土木建设有限公司路桥分公司
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[0004] In order to overcome the defects existing in the prior art, a stiff skeleton structure and its construction method for bridge closure are provided to solve the problem that the existing skeleton cannot be reused, and further improve the adjustability and efficiency of bridge closure construction and quality
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[0041] In order to facilitate the understanding of the structure of the present invention, the following description will be made in conjunction with the accompanying drawings and embodiments.
[0042] refer to figure 1 , is a schematic diagram of the overall connection structure of the rigid skeleton structure of the present invention. refer to figure 2 ,for figure 1 Schematic diagram of the enlarged structure of the middle A region.
[0043] combine figure 1 and figure 2 As shown, the present invention provides a rigid skeleton structure for bridge closure, including: a first tooth seat 1 and a second tooth seat 2, which are respectively arranged on opposite sides of the bridge closing section, and the first tooth seat 1 includes There is a first closing surface 10, and the second tooth seat 2 includes a second closing surface 20, the first closing surface 10 is opposite to the second closing surface 20; the embedded board 3 is respectively fixed on the first closing ...
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The invention provides a stiff skeleton structure for bridge closure and a construction method of the stiff skeleton structure. The stiff skeleton structure comprises a first toothed base, a second toothed base, pre-embedded plates, reserved bolts, a skeleton bridge, a regulating cushion block, wherein the first toothed base and the second toothed base are relatively arranged on two sides of a bridge closure section respectively; a first closure surface is formed in the first toothed base and a second closure surface is formed in the second toothed base; the pre-embedded plates are fixedly arranged on the first closure surface and the second closure surface respectively; the reserved bolts are fixedly arranged on the pre-embedded plates respectively; the first connection end of the skeleton bridge is fixedly connected with and pushed against the first closure surface through the reserved bolts, and the second connection end of the skeleton bridge is tightly fixed on the reserved bolts of the second closure surface, and a length regulating spacing is kept between the second connecting end and the second closure surface; and the regulating cushion block is arranged inside the length regulating spacing, at least one side of the regulating cushion block is closely propped against the second connecting end so as to control a distance between the second connecting end and the second closure surface. The stiff skeleton structure disclosed by the invention can solve the problem that an existing skeleton cannot be used repeatedly, and can further improve the adjustability, efficiency and quality of bridge closure construction.
Description
technical field [0001] The invention relates to a stiff skeleton structure, in particular to a stiff skeleton support system structure and a construction method for closing and locking bridges. Background technique [0002] Long-span bridges often adopt the cantilever construction method. Finally, the cantilever end is locked by closing the stiff skeleton, and then part of the prestress is applied to pull and lock, and finally the closing section is concreted. Among them, the rigid skeleton mainly bears compressive stress to ensure that the distance between the closed sections does not retract; the prestressed steel beams provide tensile stress to ensure that the distance between the closed sections does not expand. This stress state guarantees the possibility of use of the system. [0003] At present, stiff frameworks are mainly divided into in vivo stiff frameworks and in vitro stiff frameworks. The external stiff frame used in the closing and locking construction of long...
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IPC IPC(8): E01D21/10
CPCE01D21/10
Inventor 费日祥夏扬帆王士峰
Owner 中国建筑土木建设有限公司路桥分公司