A UHPC waffle plate composite girder bridge shear connector, installation structure and construction method
A technology of connecting parts and waffle plates, applied in bridge parts, bridges, bridge materials, etc., can solve the problems of large tensile stress, large longitudinal and lateral slip, etc., to improve the shear bearing capacity, improve the overall bearing capacity, and facilitate the The effect of assembly construction
Active Publication Date: 2021-04-06
天津大学前沿技术研究院
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Problems solved by technology
Studies have shown that the vertical and lateral slippage of flexible shear groove connectors such as traditional group nails is relatively large, and the tensile stress at the lower part of the UHPC longitudinal rib is relatively large
Method used
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[0043] The present invention will be further described in detail below through the specific examples, the following examples are only descriptive, not restrictive, and cannot limit the protection scope of the present invention with this.
[0044] A shear connector of a UHPC waffle plate composite beam bridge, such as figure 1 , 2 , 3, which includes:
[0045]Horizontal tenon-type standard unit: it is composed of several horizontal tenon-type standard parts 1 arranged at intervals. Each horizontal tenon-type standard part includes an integrated lower tenon board body 13 and upper tenon board body 14. Several upper mortise joint openings 3 with intervals;
[0046] Longitudinal tenon-type standard unit: it is composed of several longitudinal tenon-type standard parts 2 arranged at intervals. Each longitudinal tenon-type standard part includes an integrated lower tenon board body 15 and upper tenon board body 16. There are lower mortise openings 4, the lower mortise openings co...
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The invention discloses a shear force connector of a UHPC waffle plate composite girder bridge, which comprises: a transverse tenon type standard part unit: the transverse tenon type standard part is composed of a plurality of transverse tenon type standard parts arranged at intervals, and each transverse tenon type standard part includes The lower tenon joint plate body and the upper tenon joint plate body, the upper tenon joint plate body has upper tenon joint openings; longitudinal tenon type standard part unit: it is composed of several longitudinal tenon type standard parts arranged at intervals, each longitudinal tenon type standard part The parts include a lower mortise plate body and an upper mortise plate body, the lower mortise plate body has a lower mortise opening hole, the lower mortise joint opening is correspondingly inserted into the upper mortise joint opening of the transverse tenon type standard part, each The cross connection between the transverse tenon standard part and the longitudinal tenon standard part is welded and fixed. The shear force connector, the installation structure and the construction method of the UHPC waffle plate composite girder bridge of the present invention make full use of materials, facilitate assembly construction, overcome the shortcomings of small shear stiffness of flexible shear force connectors such as studs, and significantly improve the The shear capacity and shear stiffness of the connector.
Description
technical field [0001] The invention relates to the technical field of bridge engineering, in particular to a shear connector suitable for an assembled UHPC waffle plate composite girder bridge, an installation structure and a construction method thereof. Background technique [0002] Bridge rapid construction (Accelerated Bridge Construction, ABC) originated in the United States, mainly through the factory prefabrication of components, the use of special transportation equipment to transport components to the site and install them, to achieve a technology that speeds up the construction of bridges on site. Steel-concrete composite beams have excellent mechanical properties that the upper concrete slab is under compression and the lower steel girder is under tension, and it is easy to realize the assembly of steel beams and precast concrete slabs. It was first considered by engineers and used in rapid bridge construction. Among them, the prefabricated UHPC (Ultra-high Perfor...
Claims
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IPC IPC(8): E01D19/00E01D19/12E01D21/00E01D101/24E01D101/30
CPCE01D19/00E01D19/125E01D21/00E01D2101/24E01D2101/30
Inventor 朱劲松王永光
Owner 天津大学前沿技术研究院