Articulated continuous beam structure
By adopting an articulated continuous beam structure in the straddle-type tourist sightseeing monorail system, combined with hinge devices, sliding bearings and movable bearings, the stability and landscape requirements of the existing track beam structure under complex terrain and temperature changes are solved. problem, achieving the effects of high stiffness and low maintenance costs.
Patent Information
- Application Number
- CN202420998660.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-09
- Publication Date
- 2025-01-21
- Estimated Expiration
- 2034-05-09
AI Technical Summary
The track beam structure of the existing span-seat tourism monorail system is difficult to meet the needs of landscape requirements and structural stability when facing factors such as complex terrain and temperature changes, and has high maintenance costs.
The articulated continuous beam structure is adopted, and the stability and flexibility of the track beam are achieved through the combination of hinge devices, sliding bearings and movable bearings, and can adapt to large loads such as temperature changes and rolling moments.
It improves the overall stiffness and seismic performance of track beams, reduces maintenance costs and structural deformation, and meets the technical and economic needs of larger spans and complex terrain.
Smart Images
Figure CN222375103U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of track beams, in particular to an articulated continuous beam structure. Background Art
[0002] As a new type of small and medium-capacity transportation and tourism rail system, the straddle-type tourist sightseeing monorail system has strong adaptability to complex terrain, a small curve radius of the line, and strong climbing ability. It can be used as the main form of rail transportation for small and medium-sized cities, and can also be used as a small and medium-sized monorail transportation system for scenic spot tourism or small regional special transportation. It has low construction cost, short cycle, and small land occupation, and has broad development prospects.
[0003] The track beam of the straddle-type tourist sightseeing monorail system is not only the load-bearing structure of the train, but also the track for train operation and guidance. At the same time, it also needs to integrate various power, communication signals, monitoring and other equipment. At present, the track beams and piers of the straddle-type tourist sightseeing monorail system are mainly made of steel structure.
[0004] The commonly used bridge structures for interval elevated structures mainly include simply supported beams, continuous beams, and continuous rigid frames. Simply supported beams are statically determinate structures, which are characterized by simple structure, clear force, and easy installation. However, they have low rigidity, many supports, poor spanning capacity, and many structural joints, resulting in poor driving comfort. Continuous beams are statically indeterminate structures with fewer structural joints and stronger spanning capacity than simply supported beams, but the overall structural rigidity is worse than that of continuous rigid frames, and the fixed supports bear a longitudinal force of one joint. The characteristics of continuous rigid frames are that the main beam is continuous and the pier beams are consolidated, which maintains the advantages of continuous beams with fewer structural joints and smooth driving. They have great bending stiffness along the bridge and torsional stiffness in the transverse direction of the bridge, but the later maintenance cost is high and the linear shape is not easy to adjust. At present, straddle-type monorail transportation systems and straddle-type tourist monorail systems at home and abroad mainly use simply supported beams and continuous rigid frames.
[0005] Some continuous beams in related technologies cannot be applied to straddle-type tourist sightseeing monorail systems; some beam-column structures have a large overall height and cannot meet the landscape requirements of straddle-type tourist sightseeing monorail systems; others do not have movable supports or the movable supports are improperly arranged and cannot release the displacement of the track beams caused by temperature changes.
[0006] Therefore, it is necessary to improve one or more problems existing in the above-mentioned related technical solutions.
[0007] It should be noted that this section is intended to provide background or context for the technical solutions of the present disclosure stated in the claims. The description herein is not admitted to be prior art by virtue of being included in this section. Utility Model Content
[0008] The purpose of the utility model is to provide an articulated continuous beam structure, thereby overcoming one or more problems caused by limitations and defects of related technologies at least to a certain extent.
[0009] The present disclosure provides an articulated continuous beam structure, comprising:
[0010] A steel beam, wherein the steel beam is a continuous steel beam;
[0011] A plurality of steel columns, the plurality of steel columns comprising: a plurality of steel columns located inside the steel beam and a head end steel column and a tail end steel column located at both ends of the steel beam;
[0012] An articulated device, the tops of all the steel columns are provided with the articulated device, and the articulated devices at the tops of the multiple steel columns located on the inner side of the steel beam are fixedly connected to the fulcrum of the steel beam;
[0013] A sliding support is installed between the hinge device at the upper end of the first end steel column and the steel beam;
[0014] A movable support is installed between the hinge device at the upper end of the tail end steel column and the steel beam;
[0015] Wherein, the two ends of the two adjacent steel beams share the corresponding head end steel column, tail end steel column and hinged device.
[0016] In the utility model, an expansion joint is arranged between two adjacent steel beams, and the sliding support and the movable support are located on both sides of the expansion joint.
[0017] In the utility model, the lower end of the steel column is installed on the concrete foundation.
[0018] In the utility model, the hinge device is a hinge seat, and the steel column and the hinge seat are hinged by a hinge shaft.
[0019] In the utility model, relative sliding can occur between the sliding support and the steel beam.
[0020] In the utility model, relative sliding and rotation can occur between the movable support and the steel beam.
[0021] In the utility model, the steel beam is a continuous steel beam with multiple spans such as three spans, four spans or five spans.
[0022] In the utility model, the plurality of steel columns are arranged at equal intervals or at unequal intervals as required.
[0023] In the utility model, the movable support is a height-adjustable support.
[0024] The technical solution provided by the utility model may have the following beneficial effects:
[0025] The articulated continuous beam structure in the utility model utilizes a structure combining an articulated device, a sliding support and a movable support to ensure that the track beam structure has good stability, can withstand large loads such as roll moment and temperature influence, and has good seismic performance; reasonable mechanical properties enable it to be used on larger spans to demonstrate higher technical and economic efficiency; the track beam structure has high overall rigidity, small vertical deformation, and good dynamic performance. BRIEF DESCRIPTION OF THE DRAWINGS
[0026] The accompanying drawings herein are incorporated into the specification and constitute a part of the specification, illustrate embodiments consistent with the present disclosure, and together with the specification are used to explain the principles of the present disclosure. Obviously, the accompanying drawings described below are only some embodiments of the present disclosure, and for ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without creative work.
[0027] Figure 1 A structural schematic diagram showing an articulated continuous beam structure in an exemplary embodiment of the present disclosure;
[0028] Figure 2 A schematic diagram showing the structural deformation of a four-span hinged continuous beam when the ambient temperature rises in an exemplary embodiment of the present disclosure is shown;
[0029] Figure 3 A schematic diagram showing the structural deformation of a four-span hinged continuous beam when the ambient temperature drops in an exemplary embodiment of the present disclosure is shown;
[0030] Figure 4 A schematic diagram showing the structural deformation of a three-span hinged continuous beam when the ambient temperature rises in an exemplary embodiment of the present disclosure is shown;
[0031] Figure 5 A schematic diagram showing the structural deformation of a three-span articulated continuous beam when the ambient temperature drops in an exemplary embodiment of the present disclosure.
[0032] Reference numerals:
[0033] 100, steel beam; 200, steel column; 300, hinged device; 400, sliding bearing; 500, movable bearing; 600, expansion joint; 700, concrete foundation; 800, hinge axis. DETAILED DESCRIPTION
[0034] Example embodiments will now be described more fully with reference to the accompanying drawings. However, example embodiments can be implemented in a variety of forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that the disclosure will be more comprehensive and complete and to fully convey the concepts of the example embodiments to those skilled in the art. The described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.
[0035] In addition, the accompanying drawings are only schematic illustrations of the embodiments of the present disclosure and are not necessarily drawn to scale. The same reference numerals in the figures represent the same or similar parts, and their repeated descriptions will be omitted. Some of the block diagrams shown in the accompanying drawings are functional entities and do not necessarily correspond to physically or logically independent entities.
[0036] In this exemplary embodiment, an articulated continuous beam structure is provided, which may include: a steel beam 100 , a plurality of steel columns 200 , an articulated device 300 , a sliding support 400 , and a movable support 500 .
[0037] Specifically, the steel beam 100 is a continuous steel beam. For example, the steel beam 100 may be a continuous steel beam with multiple spans such as three spans, four spans, or five spans, but is not limited thereto.
[0038] The plurality of steel columns 200 include: a plurality of steel columns located inside the steel beam 100 and a head end steel column and a tail end steel column located at both ends of the steel beam 100. The top ends of all the steel columns 200 are provided with the hinge device 300, and the hinge devices 300 at the top ends of the plurality of steel columns 200 located inside the steel beam 100 are fixedly connected to the fulcrum of the steel beam 100.
[0039] Among them, a sliding support 400 is installed between the hinge device 300 at the upper end of the front end steel column and the steel beam 100; a movable support 500 is installed between the hinge device 300 at the upper end of the rear end steel column and the steel beam 100.
[0040] It should be emphasized that the two ends of the two adjacent steel beams 100 share the corresponding head end steel column, tail end steel column and hinge device 300.
[0041] In this embodiment, the structure of the combination of the hinge device 300, the sliding support 400 and the movable support 500 is used to make the track beam structure stable, able to withstand large loads such as roll moment and temperature influence, and have good seismic performance; reasonable mechanical properties enable it to be used in larger spans with high technical and economic efficiency; the track beam structure has high overall stiffness, small vertical deformation, and good dynamic performance.
[0042] Optionally, in some embodiments, an expansion joint 600 is provided between two adjacent steel beams 100, and the sliding support 400 and the movable support 500 are located on both sides of the expansion joint 600. The first and last supporting points of two adjacent continuous steel beams are installed on a common hinge seat and steel column 200 through respective sliding supports 400 or movable supports 500. An expansion joint 600 is provided between two adjacent continuous steel beams 100 to adapt to the length change caused by thermal expansion and contraction of the continuous steel beams, so as to ensure smooth and safe passage of vehicles.
[0043] Optionally, in some embodiments, the lower end of the steel column 200 is installed on a concrete foundation 700 , and the steel column 200 is firmly fixed to the ground through the concrete foundation 700 .
[0044] In the above embodiments, it can be understood that the articulated device 300 can be an articulated seat, and the steel column 200 and the articulated seat are articulated by using the articulated shaft 800.
[0045] Optionally, in some embodiments, relative sliding may occur between the sliding support 400 and the steel beam 100 to accommodate the elongation and shortening of the steel beam 100 due to changes in ambient temperature.
[0046] Optionally, in some embodiments, relative sliding and rotation may occur between the movable support 500 and the steel beam 100 to adapt to the elongation, shortening and beam end angle of the steel beam 100 caused by changes in ambient temperature.
[0047] The steel beam 100 in the present invention may be a continuous steel beam with multiple spans such as three spans, four spans or five spans.
[0048] in, Figure 1 Shown is a four-span continuous steel beam. Figure 2 The figure is a schematic diagram of the deformation of the steel column 200 of the four-span continuous steel beam when the ambient temperature rises. When the ambient temperature rises, the length of the four-span continuous steel beam 100 increases and stretches to both sides. The steel column 200 in the middle theoretically remains in a vertical state. The two steel columns 200 on both sides of the middle steel column 200 simultaneously tilt back to the outside to adapt to the change in the length of the steel beam. The two ends of the four-span continuous steel beam 100 respectively adapt to the elongation of the steel beam through the sliding support 400 and the movable support 500. The two steel columns 200 at both ends (i.e., the first end steel column and the tail end steel column) theoretically remain in a vertical state.
[0049] Figure 3Schematic diagram of the deformation of the steel column 200 of the four-span continuous steel beam when the ambient temperature drops. The length of the four-span continuous steel beam 100 decreases and shortens toward the middle. The steel column 200 in the middle theoretically remains in a vertical state. The two steel columns 200 on both sides of the middle steel column 200 simultaneously tilt inwards towards each other to adapt to the change in the length of the steel beam. The two ends of the four-span continuous steel beam 100 respectively adapt to the shortening of the steel beam through sliding bearings 400 and movable bearings 500. The two steel columns 200 at both ends theoretically remain in a vertical state.
[0050] The four-span continuous steel beam 100 uses the sliding supports 400 installed at both ends to release the beam end angle of the steel beam 100 through the hinged seats at the fulcrum positions, and the parts where the movable supports 500 are installed release the beam end angle through the movable supports 500 at the fulcrum positions; the three middle fulcrum positions of the four-span continuous steel beam 100 release the beam end angle of the steel beam 100 through hinged seats.
[0051] Figure 4 It is a schematic diagram of the deformation of the steel column 200 of the three-span continuous steel beam when the temperature rises. Figure 5 The figure is a schematic diagram of the deformation of the steel column 200 of the three-span continuous steel beam when the temperature drops. The temperature deformation of other spans is similar to the above. The two ends of the three-span continuous steel beam are respectively adapted to the change of the length of the steel beam through the sliding support 400 and the movable support 500, and the steel columns 200 at the two ends theoretically remain in the plumb state unchanged.
[0052] In addition, the plurality of steel columns 200 in the present invention may be arranged at equal intervals or at unequal intervals as required; optionally, the movable support 500 may be a height-adjustable support to adjust the height of the continuous beam to meet engineering requirements.
[0053] The continuous beam of the utility model also has the following beneficial effects:
[0054] The multiple steel columns 200 in the middle do not need to be provided with supports; the sliding supports 400 and the movable supports 500 at both ends have a low overall height, and the comprehensive construction cost and maintenance cost are low;
[0055] The rail beam has smooth lines, small beam and column sections, and a light overall structure, meeting the system landscape requirements;
[0056] The number of beam joints is small, the driving is smooth, and the riding comfort is high;
[0057] It can be used not only for straddle-type tourist monorail systems, but also for beam-column structural systems such as rail transit systems, rubber-tyred trams, railways, highways and large steel structures.
[0058] It should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like in the above description indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present disclosure and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the embodiments of the present disclosure.
[0059] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of the present disclosure, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.
[0060] In the embodiments of the present disclosure, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present disclosure can be understood according to specific circumstances.
[0061] In the embodiments of the present disclosure, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes the first feature being directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.
[0062] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example" or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present disclosure. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine different embodiments or examples described in this specification.
[0063] Those skilled in the art will readily appreciate other embodiments of the present disclosure after considering the specification and practicing the invention disclosed herein. This application is intended to cover any modification, use or adaptation of the present disclosure, which follows the general principles of the present disclosure and includes common knowledge or customary techniques in the art that are not disclosed in the present disclosure. The specification and examples are intended to be exemplary only, and the true scope and spirit of the present disclosure are indicated by the appended claims.
Claims
1. An articulated continuous beam structure, characterized in that: include: A steel beam, wherein the steel beam is a continuous steel beam; A plurality of steel columns, the plurality of steel columns comprising: a plurality of steel columns located inside the steel beam and a head end steel column and a tail end steel column located at both ends of the steel beam; An articulated device, the tops of all the steel columns are provided with the articulated device, and the articulated devices at the tops of the multiple steel columns located on the inner side of the steel beam are fixedly connected to the fulcrum of the steel beam; A sliding support is installed between the hinge device at the upper end of the first end steel column and the steel beam; A movable support is installed between the hinge device at the upper end of the tail end steel column and the steel beam; Wherein, the two ends of the two adjacent steel beams share the corresponding head end steel column, tail end steel column and hinged device.
2. The articulated continuous beam structure according to claim 1, characterized in that: An expansion joint is arranged between two adjacent steel beams, and the sliding support and the movable support are located on both sides of the expansion joint.
3. The articulated continuous beam structure according to claim 1, characterized in that: The lower end of the steel column is installed on a concrete foundation.
4. The articulated continuous beam structure according to claim 1, characterized in that: The articulated device is an articulated seat, and the steel column and the articulated seat are articulated by using an articulated shaft.
5. The articulated continuous beam structure according to claim 1, characterized in that: Relative sliding can occur between the sliding support and the steel beam.
6. The articulated continuous beam structure according to claim 1, characterized in that: Relative sliding and rotation can occur between the movable support and the steel beam.
7. The articulated continuous beam structure according to claim 1, characterized in that: The steel beam is a three-span, four-span or five-span continuous steel beam.
8. The articulated continuous beam structure according to claim 1, characterized in that: The multiple steel columns are arranged at equal intervals or at unequal intervals as required.
9. The articulated continuous beam structure according to any one of claims 1 to 8, characterized in that: The movable support is a height-adjustable support.