8 results about "Wide bridge" patented technology

The invention discloses a lightweight spliced bridge vibration monitoring system for cooperative work performance intelligent perception, and belongs to the technical field of bridge structure health monitoring, and the lightweight spliced bridge vibration monitoring system comprises a lightweight targeted sensing subsystem which comprises a plurality of perception assemblies arranged in a targeted manner; the intelligent edge acquisition and transmission subsystem has an independent addressing function and a time synchronization function and is used for preprocessing and lightweight processing; the cloud edge collaborative storage management subsystem performs hierarchical storage, security control and efficient retrieval on the data to form monitoring data; and the cooperative performance perception early warning subsystem realizes state evaluation and graded early warning of the cooperative work performance of the spliced bridge through multi-index fusion. By adopting the lightweight spliced bridge vibration monitoring system for cooperative work performance intelligent perception, the problems of insufficient lightweight and targeting performance, low data processing, transmission and storage efficiency, and inaccurate cooperative performance evaluation, damage positioning and early warning of traditional spliced bridge vibration monitoring are solved.

The utility model discloses a stress structure device of big cantilever double width ultra wide bridge middle connection becomes whole, it is arranged between two bridges, and every bridge includes box girder and the bridge deck of box girder top, and the inside of every box girder has web, and the bottom of bridge deck has a plurality of stiffening half beam, and every stiffening half beam extends horizontally, and the stiffening half beam on two bridge decks is opposite each other and is connected through post-cast strip and forms a plurality of stiffening main girder, and every stiffening main girder extends horizontally, and a plurality of stiffening main girders are arranged along the length direction of bridge, and through the setting of a plurality of steel truss, and cooperate every steel truss with two webs and corresponding stiffening main girder fixed connection, and every steel truss can participate in bridge deck collaborative stress, and reduce the stress of bridge deck in the middle, can increase the length of bridge deck connection in the middle, and, through the setting of maintenance access, facilitate subsequent structure detection and maintenance, bring the convenience for use, can be widely used.

The utility model discloses a novel wide bridge connecting expansion device, relate to road traffic technical field, including new abutment, integration layer, bridge deck pavement and C50 steel fiber reinforced concrete, the expansion gap is left between new abutment and old abutment, the top of new abutment and old abutment is provided with integration layer, and the top of integration layer is provided with bridge deck pavement, the top of new abutment has been irrigated with C50 steel fiber reinforced concrete, and C50 steel fiber reinforced concrete inside is provided with reinforced skeleton, the anchor bar is buried on the reinforced skeleton, this device has and through the steel fiber of C50 steel fiber reinforced concrete inside random distribution can effectively hinder the expansion of concrete internal microcrack and the formation of macrocrack, has improved the tensile, bending, impact and fatigue resistance of concrete significantly, has better ductility, and through the water guide pipe can play the water guide effect to the position of waterstop, and it is convenient for drainage.

The utility model discloses a multi-truss type ultra-wide bridge construction hanging basket which comprises a hanging basket body, an elastic protection plate used for achieving an anti-collision protection effect is arranged on the inner wall of the hanging basket body, a storage mechanism is arranged in the hanging basket body and comprises a first limiting plate, a limiting square rod is arranged above the first limiting plate, and a second limiting plate is arranged above the first limiting plate. A plurality of adjustable storage boxes corresponding to the limiting square rods are arranged above the first limiting plate at intervals, and a plurality of limiting separation pipes for limiting the adjustable storage boxes are arranged on the limiting square rods at intervals; according to the hanging basket, tools are stored in a classified mode through mutual cooperation of multiple structures, so that workers do not need to carry many tools, the use experience of a user on the hanging basket is improved, the stored tools can be subjected to height adjustment and posture adjustment, the user can conveniently take the stored tools, and the use experience of the user is improved. And the hanging basket is more humanized to use.

The embodiment of the application provides a middle support mechanism and a chassis vehicle which can extend bridge construction work. The middle support mechanism comprises a guide seat, a middle support oil cylinder, a base, a middle support overturning oil cylinder, a support swing arm and an extension swing arm. The guide seat is used to support the inner main beam of the bridge during work and bear the weight of the bridge. The middle support oil cylinder is embedded in the support arm of the guide seat and controls the height of the guide seat through the extension and contraction of the oil cylinder. The base fixes the whole middle support mechanism on the deck of the middle part of the chassis vehicle. The middle support overturning oil cylinder is fixed at one end on the base and at the other end on the double-ear seat of the support swing arm, and the rising or falling of the support swing arm is realized through the extension and contraction of the oil cylinder. The support swing arm is used to support the outer main beam of the bridge during work and is fixed at one end on the base through a bolt, and the rotation function can be realized. The extension swing arm is used to support the outer main beam of the bridge during the work of wider bridges and is connected at one end with the support swing arm through a bolt, and the rotation function can be realized. The middle support mechanism can adapt to the work requirements of wider bridges, is convenient and easy to operate, and ensures the stability and reliability of the work.

The invention discloses an intelligent monitoring system and method for the whole construction process of a large-span steel box tied arch bridge. According to the system and the method, aiming at key technical problems in integral incremental launching construction, real-time monitoring, accurate analysis and dynamic control of structure line shape, stress, temporary structure stress and multi-point synchronism in the incremental launching process are realized by integrating sensing monitoring, data acquisition, an incremental launching construction finite element model as shown in figure 4 and a feedback control module. Graded early warning and control logic (as shown in Figure 5) in the incremental launching process is particularly constructed, the industrial pain points that wide bridge incremental launching is asynchronous, prone to deviation and high in safety risk are effectively solved, and the automation level, the intelligence level and the safety of incremental launching construction are remarkably improved.

The invention discloses a vertical shear stiffness quantitative identification and safety monitoring evaluation method for a new and old widened bridge joint, and belongs to the field of bridge engineering safety detection and structural performance monitoring. The invention relates to a method for identifying the rigidity of an abutted seam of a widened bridge, which is characterized in that under the excitation of a low-speed vehicle load, the ratio of response time cumulants of quasi-static displacement generated in the midspan of a new bridge and an old bridge and the vertical rigidity of the abutted seam connecting the two have a clear and stable mathematical mapping relationship; and a stable and reliable dimensionless identification index which is directly associated with the abutted seam rigidity is constructed, so that quantitative evaluation of the health state of the abutted seam is realized. The invention discloses a new and old widened bridge joint safety assessment method. The method comprises the following steps: step 1, arranging a new and old widened bridge joint structure performance monitoring system; 2, deploying a signal processing module and a parameter calculation and state evaluation module in a background; and step 3, deploying a display and monitoring early warning module on a client, wherein a manager can see the content of the display and monitoring early warning module.

The utility model discloses a variable cross section multi -box chamber box girder structure, including bridge body, first end part and second end part, from the first end plate along the direction of second end part's width size of bridge surface gradually reduces the setting, a plurality of box chamber structures are arranged between first end part and second end part, and at least partial box chamber structure is arranged along the center position symmetry of first end part and second end part, first abutment is arranged on first end part, and second abutment is arranged on second end part, the bridge body is supported with ground through first abutment and second abutment, the distance from first end part to second end part is less than the width of second end part, the structure of this scheme can not only guarantee the drainage of wide bridge body structure, but also can guarantee the stability of whole, can also reduce the construction difficulty of bridge body simultaneously.