Roadbed slope stand column structure installed above culvert

Abstract

The roadbed slope stand column structure comprises supporting piles fixedly arranged on the two sides of the culvert, a supporting cross beam and a stand column, the supporting cross beam is fixedly arranged on the tops of the two supporting piles in a crossing mode, a connecting piece is arranged on the supporting cross beam in advance, and a column bottom flange is fixedly arranged at the bottom of the stand column; the column bottom flange and the connecting piece are fixedly assembled in a butt joint mode. According to the stand column structure, the bearing and stress requirements of the stand column can be met, and the safety of the culvert can be prevented from being affected.

Description

Technical Field

[0001] This invention belongs to the field of column installation technology, specifically relating to a roadbed slope column structure installed above a culvert. Background Technology

[0002] The highway canopy has a two-span, three-column structure in the transverse direction, with two side columns located on the highway embankment slope. If there are no culverts passing under the embankment slope, the columns can be inserted to any depth to meet the requirements for strength, rigidity, and stability. However, if culverts or passageways are buried under the embankment slope, the column placement becomes more complex. First, the columns cannot penetrate the culverts. Second, when the columns are placed above the culverts, the forces they transmit must not affect the safety of the culverts below. Third, the length of each column buried above each culvert varies; some embankments are high, requiring deep burials, while others are low, requiring shallow burials, possibly placing the column directly on the culvert cover. Fourth, the compaction of the slope fill is uneven, and the slope stability must not be compromised. Fifth, the columns must withstand horizontal forces in all directions. Sixth, the bearing capacity of the slope soil must be utilized. The span, depth, and bearing capacity of the culverts must also be considered. Seventh, if an independent foundation is chosen to span the culvert, it will be very large and heavy, placing a large load on the culvert and being uneconomical. Eighth, the roadbed slope is exposed, which is not conducive to the safe compaction of the road roller, nor to the restraint and compression of the soil, ultimately affecting the degree of soil compaction. Ninth, the culvert is constructed before the side pillars, so its load is already determined; while the side pillars are erected later, and if they are placed directly on the culvert, the safety factor of the culvert will be reduced.

[0003] In short, the design must not compromise the safety of the culvert, ensure proper embedding and support of the columns, and facilitate construction quality, safety, and progress. Currently, there is no suitable column structure for culverts that meets the load-bearing and stress requirements of the columns, avoids compromising the safety of the culvert, and allows for prefabrication and standardized assembly. Summary of the Invention

[0004] In view of this, the purpose of the present invention is to provide a roadbed slope support column structure installed above a culvert, which can meet the load-bearing and stress requirements of the column while avoiding affecting the safety of the culvert.

[0005] The present invention solves the above problems through the following technical means: a roadbed slope column structure installed above a culvert, comprising support piles, support beams and columns fixedly arranged on both sides of the culvert, the support beams being fixedly installed across the top of the two support piles, the cross section of the support beams being elastically supported by the roadbed soil, the support beams being pre-installed with connectors, and the bottom of the column being fixedly installed with a column bottom flange, the column bottom flange being connected and fixedly assembled with the connectors.

[0006] Furthermore, the connector includes a beam flange that is welded and fixed to the supporting beam, and multiple connecting studs that are circumferentially spaced and welded to the beam flange. After the flange hole of the stud base flange is matched and assembled with the connecting studs, it is fixed by a nut that is threadedly connected to the connecting studs.

[0007] Furthermore, it also includes a tie beam arranged perpendicular to the supporting crossbeam. One end of the tie beam is embedded in the roadbed slope, and the other end is supported by the roadbed. The tie beam has a column insertion hole. The column passes through the column insertion hole and is then assembled with the connector. The column insertion hole is filled with concrete and is completely filled.

[0008] Furthermore, the length of the tie beam is greater than the width of the culvert cover plate to ensure that the load applied by the tie beam is distributed on the top of the culvert.

[0009] Furthermore, the elevation of the tie beam should ensure that the bottom surface of the section of the tie beam extending outward from the roadbed is supported by the roadbed.

[0010] Furthermore, the soil around the tie beam was compacted by a rammer, which facilitates embedding and support.

[0011] Furthermore, spiral steel bars are installed inside the insertion holes of the column.

[0012] Furthermore, the elevation of the bottom of the support pile is lower than the elevation of the culvert cover, and the support pile is embedded in the soil layer with the required compaction degree. In specific implementation, the support pile penetrates the surface layer of the slope with unstable compaction degree and is embedded in the soil layer with the required compaction degree.

[0013] Furthermore, the supporting beam and the supporting pile are fixedly connected by bolts.

[0014] Furthermore, the width of the tie beam is greater than the diameter of the column insertion hole, the diameter of the column insertion hole is not less than the diameter of the crossbeam flange of the supporting crossbeam, the width of the supporting crossbeam is not less than the diameter of the crossbeam flange, the diameter of the crossbeam flange is not less than the diameter of the column flange, and the ring diameter of the spiral steel bar is not greater than the diameter of the column insertion hole.

[0015] The beneficial effects of this invention are: The present invention relates to a roadbed slope support column structure installed above a culvert, comprising support piles, support beams, and columns fixedly arranged on both sides of the culvert. The support beams are fixedly mounted across the tops of the two support piles, and connectors are pre-installed on the support beams. A column base flange is fixedly mounted at the bottom of the column, and the column base flange is mated and fixedly assembled with the connectors. In this column structure, the majority of the force transmitted by the column is transferred to the support piles on both sides through the support beams. The support piles are located in the back of the culvert abutment and are lower than the elevation of the culvert cover. Compared with the roadbed soil beneath the support beams, the support piles have greater stiffness and smaller deformation, thus bearing most of the load. The lower roadbed soil transmits less force, thereby avoiding a significant additional load on the culvert below. Therefore, it satisfies the load-bearing and stress requirements of the column while avoiding affecting the safety of the culvert. The tie beam enhances both the torsional resistance of the support beams and the stability of the column in the transverse roadbed direction. The agreed-upon geometric dimensions of the columns, supporting beams, tie beams, through-holes, flanges, and spiral reinforcement ensure no leakage during concrete pouring and eliminate the need for formwork. The use of through-holes, flanges, embedded bolts, spiral reinforcement, and post-poured concrete ensures that the joints formed by the columns, supporting beams, and tie beams facilitate concrete compaction, exhibit good joint performance, and form a cohesive whole, ensuring the overall reliability and reasonable force transmission of the roadbed slope support structure above the culvert. One end of the tie beam is embedded in the roadbed, while the other end is supported by the roadbed, thus determining the elevation of the entire support pile top and the support beam. Furthermore, the prefabrication of the components facilitates quality, schedule, and safety control. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0017] Figure 1 This is a front view of a preferred embodiment of the present invention; Figure 2 This is a side view of a preferred embodiment of the present invention; Figure 3 This is a top view of a preferred embodiment of the present invention. Detailed Implementation

[0018] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. Through these descriptions, the features and advantages of the present invention will become clearer and more apparent. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them.

[0019] like Figures 1 to 3 As shown, this embodiment provides a roadbed slope support column structure installed above a culvert, including support piles 3, support beams 2 and columns 1 fixedly arranged on both sides of the culvert 6. Preferably, the bottom elevation of the support piles 3 is lower than the elevation of the culvert cover plate, thereby avoiding the bearing capacity of the support piles 3 from being dispersed and transferred to the culvert cover plate.

[0020] The supporting beam 2 is fixedly mounted across the top of the two supporting piles 3. Specifically, the supporting beam 2 and the supporting piles 3 are connected by bolts for easy assembly and disassembly. A connector 8 is pre-installed on the supporting beam 2, and a column base flange is fixedly mounted at the bottom of the column 1. The column base flange is mated and fixedly assembled with the connector. In this embodiment, the connector includes a beam flange welded to the supporting beam 2 and multiple connecting studs circumferentially welded to the beam flange. After the flange hole of the column base flange matches and mates with the connecting studs, it is fixed by nuts threaded to the connecting studs.

[0021] The width of the tie beam is greater than the diameter of the column insertion hole, the diameter of the column insertion hole is not less than the diameter of the crossbeam flange of the supporting crossbeam, the width of the supporting crossbeam is not less than the diameter of the crossbeam flange, the diameter of the crossbeam flange is not less than the diameter of the column flange, and the ring diameter of the spiral steel bar is not greater than the diameter of the column insertion hole.

[0022] In the column structure of this application, the force of the column 1 is mostly transferred to the support piles 3 on both sides through the support beam 2, which will not have a significant impact on the culvert 6 below. Therefore, it can meet the load-bearing and stress requirements of the column 1, and avoid affecting the safety of the culvert 6.

[0023] As a further improvement to the above technical solution, a tie beam 4 is also included, which is arranged perpendicularly to the supporting beam 2. The tie beam is embedded in the roadbed slope 5. A column insertion hole 9 is opened on the tie beam. The column 1 passes through the column insertion hole and is assembled with the connector 8. A concrete layer is poured into the column insertion hole 9. The tie beam 4 is used to tie and fix the column 1, which helps to improve the stability of the column 1. Preferably, a spiral steel bar 7 is provided in the column insertion hole 9, which helps to improve the strength of the poured concrete and the performance of the three-component joint.

[0024] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A roadbed slope support column structure installed above a culvert, characterized in that: It includes support piles, support beams and columns fixedly arranged on both sides of the culvert. The support beams are fixedly installed across the top of the two support piles. Connectors are pre-installed on the support beams. The bottom of the columns is fixedly installed with column bottom flanges, and the column bottom flanges are connected and fixedly assembled with the connectors.

2. The roadbed slope support column structure installed above the culvert according to claim 1, characterized in that: The connector includes a beam flange that is welded and fixed to the supporting beam, and multiple connecting studs that are circumferentially spaced and welded to the beam flange. After the flange hole of the stud base flange is matched and assembled with the connecting studs, it is fixed by a nut that is threadedly connected to the connecting studs.

3. The roadbed slope support column structure installed above the culvert according to claim 2, characterized in that: It also includes a tie beam arranged perpendicular to the support beam, the tie beam having a column insertion hole, the column passing through the column insertion hole and then being assembled with the connector, the column insertion hole being filled with concrete.

4. The roadbed slope support column structure installed above the culvert according to claim 3, characterized in that: Spiral steel bars are installed inside the insertion holes of the columns.

5. The roadbed slope support column structure installed above the culvert according to claim 4, characterized in that: The bottom elevation of the support pile is lower than the elevation of the culvert cover plate, and the support pile is embedded in the soil layer with the required compaction degree.

6. The roadbed slope support column structure installed above the culvert according to claim 5, characterized in that: The supporting beam and the supporting pile are fixedly connected by bolts.

7. The roadbed slope support column structure installed above the culvert according to claim 4, characterized in that... The width of the tie beam is greater than the diameter of the column insertion hole, the diameter of the column insertion hole is not less than the diameter of the crossbeam flange of the supporting crossbeam, the width of the supporting crossbeam is not less than the diameter of the crossbeam flange, the diameter of the crossbeam flange is not less than the diameter of the column flange, and the ring diameter of the spiral steel bar is not greater than the diameter of the column insertion hole.

Images