Transverse force transfer structure of half-through concrete-filled steel tube arch bridge

Abstract

The utility model provides a transverse force transmission structure of a half-through concrete-filled steel tube arch bridge, which belongs to the technical field of half-through concrete-filled steel tube arch bridges and comprises two main arch lower chords arranged in parallel. The main arch web members are connected between the main arch lower chord members and the main arch upper chord members; the two arch rib stand columns are symmetrically connected to the two main arch lower chord members respectively; the connecting structure between the stand columns comprises an upper transverse plate, and the two ends of the upper transverse plate are connected with the two stand columns between the arch ribs respectively. The steel stop block is connected to the upper transverse plate; the steel main beam is arranged on one side of the steel stop block; the side, close to the steel check block, of the steel main beam is connected with a supporting piece. The lower side of the vertical support is connected with the upper transverse plate, and the upper side of the vertical support is connected with the steel main beam; one side of the teflon sliding plate support abuts against the steel check block, and the other side of the teflon sliding plate support is connected with the steel main beam; the supporting piece is used for supporting the teflon sliding plate support. Transverse load force transmission between arched girders can be smoothly achieved, all components are easy to purchase, and the components are very easy and convenient to install.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of half-through steel pipe concrete arch bridge, more specifically, relate to a kind of half-through steel pipe concrete arch bridge's transverse force transmission structure. BACKGROUND

[0002] Arch bridge is the bridge with arch as main load-bearing structure, and the stress of arch bridge is mainly compression of arch structure, and bridge load is transmitted to arch base through arch.As one of basic bridge types, arch bridge is widely used in bridge engineering due to its beautiful shape.Arch bridge is divided into deck arch bridge, half-through arch bridge and through arch bridge according to the position of bridge deck, wherein, half-through arch bridge is the bridge with bridge deck arranged in the middle of main load-bearing structure (main arch), and is mainly used in large-span bridge.

[0003] Steel pipe concrete arch bridge is a kind of bridge with steel pipe concrete composite material as main arch structure, which belongs to steel-concrete composite structure.Concrete is filled in steel pipe in steel pipe concrete arch bridge, and the expansion of compression concrete is limited due to the radial constraint of steel pipe, so that the concrete in pipe is in three-dimensional compression state, thereby significantly improving the compressive strength of concrete.Steel pipe has the functions of longitudinal main reinforcement and transverse hoop, and can be used as construction formwork, facilitating concrete pouring.During construction, steel pipe can be used as rigid load-bearing framework, and its welding work is simple, and hoisting weight is light, so that construction process can be simplified, and construction period can be shortened.

[0004] For large-span half-through steel pipe concrete arch bridge, main arch generally adopts truss structure, and main beam mainly adopts longitudinal and transverse beam structure (steel structure or concrete structure).Load is transmitted to main arch through suspender hung on arch for main beam of middle span, and load on bridge deck is transmitted to arch column on arch through vertical force transmission support for main beam of side span, and vertical load is transmitted through support between arch beam at intersection part of arch beam.In view of large-span arch bridge, beam and arch are separated, beam body has large span as integral structure, and is subjected to large external force under transverse load such as wind load, and if transverse load is only transmitted through vertical support between arch beam, vertical support needs to be specially designed to adapt to the need of large transverse force transmission.At this time, it is a more reasonable solution to set separate transverse force transmission structure at intersection part of arch beam.

[0005] Therefore, in order to conveniently realize the need of transverse force transmission between arch beams of large-span half-through steel pipe concrete arch bridge, it is necessary to develop a kind of transverse force transmission structure between arch beams which is easy to implement. UTILITY MODEL CONTENT

[0006] The utility model aims at providing a kind of transverse force transmission structure of half-through steel pipe concrete arch bridge to smoothly realize transverse load transmission between arch beams.

[0007] In order to achieve the above object, the utility model provides a kind of transverse force transmission structure of half-through steel pipe concrete arch bridge, comprising:

[0008] Two parallelly arranged main arch lower chords, the main arch lower chord is poured with chord inner concrete in it;

[0009] Multiple main arch web members are connected between the main arch lower chord and the main arch upper chord;

[0010] Two arch rib intercolumniars are respectively symmetrically connected on two main arch lower chords;

[0011] Inter-columnar connecting structure, which includes upper transverse plate, two ends of the upper transverse plate are respectively connected with two arch rib intercolumniars;

[0012] Steel stopper is connected on the upper transverse plate;

[0013] Steel girder is arranged on one side of the steel stopper;The steel girder is connected with support on one side close to the steel stopper;

[0014] Vertical support, which is connected with the upper transverse plate on the lower side and with the steel girder on the upper side;And,

[0015] Teflon slide plate support, which is abutted with the steel stopper on one side and connected with the steel girder on the other side;The support is used for supporting the teflon slide plate support.

[0016] Further, the steel stopper is connected with stainless steel plate on one side close to the teflon slide plate support, and one side of the teflon slide plate support is abutted with the stainless steel plate.

[0017] Further, the teflon slide plate support is provided with gap between the steel girder, and the gap is filled with adhesive.

[0018] Further, the inter-columnar connecting structure further includes lower transverse plate and multiple vertical plates connected between the upper transverse plate and the lower transverse plate, and two ends of the lower transverse plate are respectively connected with two arch rib intercolumniars.

[0019] Further, it further includes multiple column reinforcing steel plates, one end of the column reinforcing steel plate is connected with the main arch lower chord, and the other end is connected with the upper transverse plate.

[0020] Further, it further includes multiple column internal anchoring steel bars, the column internal anchoring steel bar is arranged in the arch rib intercolumniar, one end of the column internal anchoring steel bar is connected with the upper transverse plate, and the arch rib intercolumniar is poured with column inner concrete.

[0021] Further, the support is angle steel connected on one side of the steel girder.

[0022] Further, the steel block is connected by four side plates.

[0023] Further, the lower side of the steel block is provided with a drainage hole.

[0024] Further, it also comprises a rainproof baffle connected on the steel girder, and the rainproof baffle is arranged on the upper side of the four-fluorine sliding plate support.

[0025] Compared with the prior art, the utility model has the following technical effects:

[0026] The transverse force transmission structure of the half-through steel pipe concrete arch bridge of the utility model transmits the transverse load borne by the steel girder to the main arch lower chord through the four-fluorine sliding plate support, the steel block, the inter-column connecting structure and the inter-rib column, so that the transverse load is finally transmitted to the arch support foundation through the arch, and the transverse load transmission between the arch and the beam is realized smoothly. BRIEF DESCRIPTION OF DRAWINGS

[0027] In order to more clearly illustrate the technical scheme in the embodiment of the utility model, the following will briefly introduce the drawings needed to be used in the embodiment or the prior art description, and obviously, the drawings in the following description are only some embodiments of the utility model, and for the ordinary skilled in the art, other drawings can also be obtained according to these drawings without the creative labor.

[0028] Figure 1 The transverse cross-section structure schematic view of the transverse force transmission structure of the half-through steel pipe concrete arch bridge provided by the utility model embodiment is shown in the figure.

[0029] Figure 2 The side structure schematic view of the transverse force transmission structure of the half-through steel pipe concrete arch bridge provided by the utility model embodiment is shown in the figure.

[0030] Figure 3 For Figure 1 The enlarged structure schematic view of the middle A is shown in the figure.

[0031] In the figure, various reference signs are as follows:

[0032] 1, main arch lower chord, 1.1, chord inner concrete, 2, main arch web, 3, steel girder, 4, inter-rib column, 4.1, column inner concrete, 5, column reinforcing steel plate, 6, column internal anchoring steel bar, 7, inter-column connecting structure, 8, vertical support, 9, steel block, 9.1, drainage hole, 10, four-fluorine sliding plate support, 11, support, 12, stainless steel plate, 13, gap, 14, rainproof baffle. DETAILED DESCRIPTION

[0033] In order to make the technical problems, technical solutions and beneficial effects of the utility model clearer, the utility model will be further described in detail below in combination with the drawings and examples.

[0034] It should be noted that when an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or indirectly on the other element.

[0035] It should be understood that the terms "length", "upper", "lower", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model.

[0036] The terms used in the embodiments of the utility model are only for the purpose of describing specific embodiments, and are not intended to limit the utility model. The singular forms "a", "said" and "the" used in the embodiments of the utility model and the appended claims are also intended to include the plural forms, unless the context clearly indicates otherwise.

[0037] As a common bridge type scheme, the load transmission structure between the main beam and the main arch of the large-span half-through steel pipe concrete arch bridge is the key link to realize the function of the arch bridge. The vertical load of the arch bridge is generally transmitted through the hanger between the arch beam and the support, and the support between the arch column and the main beam. Since the main beam is a whole and has a large span, it is subjected to a large external force under the action of wind load and other transverse forces. In order to successfully realize the transverse load transmission between the arch beams, the embodiments of the utility model provide a transverse load transmission structure which is easy to install and has a clear and reliable load transmission path.

[0038] Please refer to Figures 1-3 , a transverse load transmission structure of a half-through steel pipe concrete arch bridge according to the embodiments of the utility model will be described.

[0039] In an embodiment of the utility model, the utility model discloses a kind of transverse force transmission structures of half-through steel pipe concrete arch bridge of the embodiment of the utility model, comprising: two parallelly arranged main arch lower chord 1, multiple main arch web 2, two arch rib intercolumn 4, intercolumnar connecting structure 7, steel block 9, steel girder 3, vertical support 8 and four fluorine slide plate support 10.Chord inner concrete 1.1 is poured in main arch lower chord 1, multiple main arch web 2 are connected between main arch lower chord 1 and main arch upper chord (not shown in drawing);Two arch rib intercolumn 4 are respectively symmetrically connected on two main arch lower chord 1;Intercolumnar connecting structure 7 includes upper transom, and the both ends of upper transom are respectively connected with two arch rib intercolumn 4;Steel block 9 is connected on the upper transom of intercolumnar connecting structure 7;Steel girder 3 is located at one side of steel block 9;Supporting piece 11 is connected on the side of steel girder 3 close to steel block 9;The lower side of vertical support 8 is connected with the upper transom of intercolumnar connecting structure 7, and the upper side is connected with steel girder 3;One side of four fluorine slide plate support 10 is abutted with steel block 9, and the other side is connected with steel girder 3;Supporting piece 11 is used to support four fluorine slide plate support 10.

[0040] In the embodiment, the corresponding four fluorine slide plate support 10, steel block 9 and intercolumnar connecting structure 7 are arranged on the side of main arch lower chord 1 and steel girder 3 to realize transverse force transmission between arch beam.Specifically, arch rib intercolumn 4 is arranged on main arch lower chord 1, and intercolumnar connecting structure 7 is arranged to form arch upper connecting structure.Conventional vertical support 8 is arranged between the top of intercolumnar connecting structure 7 and steel girder 3 to realize vertical force transmission between steel girder 3 and main arch lower chord 1.Steel block 9 is arranged on the upper transom of intercolumnar connecting structure 7 to limit the side of steel girder 3, four fluorine slide plate support 10 is arranged between steel block 9 and steel girder 3 to realize reliable force transmission between steel girder 3 and steel block 9, and realize longitudinal bridge free deformation of bridge upper structure.Four fluorine slide plate support 10 is supported by supporting piece 11 connected on the side of steel girder 3.

[0041] In the embodiment, the transverse load received by steel girder 3 is transmitted to main arch lower chord 1 through four fluorine slide plate support 10, steel block 9, intercolumnar connecting structure 7 and arch rib intercolumn 4 in sequence.The transverse force transmission structure of the embodiment can select appropriate four fluorine slide plate support 10 and steel block 9 according to the actual transverse load received by steel girder 3 to realize reliable force transmission between arch beam.

[0042] The transverse force transmission structure of the half-through steel pipe concrete arch bridge of the utility model embodiment can transmit the transverse load borne by the steel main beam 3 to the main arch lower chord 1 through the four-fluorine sliding plate support 10, the steel stopper 9, the inter-column connecting structure 7 and the arch rib inter-column 4, so that the transverse load is finally transmitted to the arch support foundation through the arch, and the transverse load transmission between the arch and the beam is smoothly realized.

[0043] The steel stopper 9 is generally made of conventional building steel, and the friction coefficient between the steel stopper 9 and the four-fluorine sliding plate support 10 is generally large, which is not conducive to the better function of the four-fluorine sliding plate support 10, therefore, further, the side of the steel stopper 9 close to the four-fluorine sliding plate support 10 is connected with a stainless steel plate 12, and the side of the four-fluorine sliding plate support 10 is abutted with the stainless steel plate 12. The stainless steel plate 12 can be welded on the side of the four-fluorine sliding plate support 10, so that the friction coefficient between the four-fluorine sliding plate support 10 and the stainless steel plate 12 is smaller, which is more conducive to the function of the four-fluorine sliding plate support 10, and the longitudinal bridge displacement of the bridge superstructure is not limited.

[0044] Further, in order to smoothly install the four-fluorine sliding plate support 10, a gap 13 is arranged between the four-fluorine sliding plate support 10 and the steel main beam 3, and the gap 13 is filled with adhesive. That is, the gap 13 arranged between the four-fluorine sliding plate support 10 and the steel main beam 3 can realize the smooth installation of the four-fluorine sliding plate support 10, and the side of the four-fluorine sliding plate support 10 is bonded with the steel main beam 3 by using adhesive during installation.

[0045] Further, the inter-column connecting structure 7 of the embodiment further includes a lower transverse plate and a plurality of vertical plates connected between the upper transverse plate and the lower transverse plate, and the two ends of the lower transverse plate are respectively connected with the two arch rib inter-columns 4. In this way, the firmness and integrity of the connection between the inter-column connecting structure 7 and the arch and beam of the bridge can be strengthened, and the structural strength and stress performance of the overall structure can be improved.

[0046] Further, the transverse force transmission structure of the embodiment further includes a plurality of column reinforcing steel plates 5, one end of the column reinforcing steel plate 5 is connected with the main arch lower chord 1, and the other end is connected with the upper transverse plate of the inter-column connecting structure 7. By arranging the column reinforcing steel plate 5, the vertical bearing capacity of the arch rib inter-column 4 can be improved.

[0047] Further, the transverse force transmission structure of the embodiment further includes a plurality of column internal anchoring steel bars 6, the column internal anchoring steel bar 6 is arranged in the arch rib inter-column 4, one end of the column internal anchoring steel bar 6 is connected with the upper transverse plate of the inter-column connecting structure 7, and the arch rib inter-column 4 is poured with column internal concrete 4.1. Similarly, the column internal anchoring steel bar 6 is also used to improve the vertical bearing capacity of the arch rib inter-column 4, and to realize the reliable connection between the arch rib inter-column 4 and the inter-column connecting structure 7.

[0048] Further, the support 11 of the embodiment is an angle steel connected to one side of the steel girder 3. The angle steel can be connected to the steel girder 3 by simple welding, and the Teflon sliding plate support 10 is supported by the angle steel welded on the side of the steel girder 3.

[0049] Further, the steel block 9 of the embodiment is connected by four side plates, specifically, the steel block 9 is connected by four rectangular steel plates welded with each other, and the structure is simple, and the lower side of the steel block 9 is connected to the column interconnecting structure 7 by welding. Further, the lower side of the steel block 9 is provided with a drainage hole 9.1 to timely drain the accumulated water in the steel block 9 and prevent the water accumulation in the steel block 9.

[0050] Further, the transverse force transmission structure of the embodiment further comprises a rain shielding baffle 14 connected to the steel girder 3, and the rain shielding baffle 14 is arranged on the upper side of the Teflon sliding plate support 10 to effectively protect the Teflon sliding plate support 10 and prevent rain from pouring to cause the performance of the Teflon sliding plate support 10 to be reduced. The drainage hole 9.1 is arranged on the lower side of the steel block 9, and the rain shielding baffle 14 is arranged on the upper side of the Teflon sliding plate support 10 to ensure the durability of the structure in use.

[0051] The transverse force transmission structure of the half-through type steel pipe concrete arch bridge of the embodiment can be constructed according to the following steps:

[0052] 1) The main arch web 2, the inter-rib column 4 and the column reinforcing plate 5 are welded on the main arch lower chord 1, and the column interconnecting structure 7 is welded, and the internal anchoring steel bars 6 of the column are welded on the column interconnecting structure 7.

[0053] 2) The steel block 9 is welded on the top of the column interconnecting structure 7, and the stainless steel plate 12 is welded on the steel block 9.

[0054] 3) The arch upper connecting structure is installed together with the steel block 9.

[0055] 4) After the main arch is hoisted to form an arch, the chord internal concrete 1.1 is poured into the main arch lower chord 1, and the column internal concrete 4.1 is poured into the inter-rib column 4.

[0056] 5) The angle steel 11 is welded on the side of the steel girder 3 and hoisted.

[0057] 6) The vertical support 8 and the transverse Teflon sliding plate support 10 are installed.

[0058] 7) The rain shielding baffle 14 is installed.

[0059] The above embodiments only express several implementation manners of the utility model, the description is more specific and detailed, but can not therefore be understood as the limitation of the utility model patent range. It should be pointed out that for ordinary skilled person in the art, without departing from the utility model concept, several deformations and improvements can be made, which belong to the protection range of the utility model. Therefore, the protection range of the utility model patent should be subject to the appended claims.

Claims

1. A lateral force transmission structure of a half-through steel tube concrete arch bridge, characterized by, The utility model relates to a kind of steel arch rib structure, including: Two parallelly arranged main arch lower chords, and the chord inner concrete is poured in the main arch lower chord; Multiple main arch web members are connected between the main arch lower chord and the main arch upper chord; Two arch rib intercolumniars are respectively and symmetrically connected to the two main arch lower chords; Inter-columnar connecting structure includes upper cross plate, and both ends of the upper cross plate are respectively connected to the two arch rib intercolumniars; Steel stopper is connected to the upper cross plate; Steel girder is arranged on one side of the steel stopper;The steel girder is connected with support near one side of the steel stopper; Vertical support, the lower side of which is connected to the upper cross plate, and the upper side of which is connected to the steel girder;And, Teflon slide plate support, one side of which is in abutment with the steel stopper, and the other side of which is connected to the steel girder;The support is used to support the teflon slide plate support.

2. The transverse force transmission structure of a half-through steel tube concrete arch bridge according to claim 1, characterized in that, The steel stopper is connected with stainless steel plate near one side of the teflon slide plate support, and one side of the teflon slide plate support is in abutment with the stainless steel plate.

3. The transverse force transfer structure of a half-through steel tube concrete arch bridge according to claim 1, characterized in that, The teflon slide plate support is provided with a gap between the steel girder, and the gap is filled with adhesive.

4. The transverse force transfer structure of a half-through steel tube concrete arch bridge according to claim 1, wherein, The inter-columnar connecting structure further includes lower cross plate and multiple vertical plates connected between the upper cross plate and the lower cross plate, and both ends of the lower cross plate are respectively connected to the two arch rib intercolumniars.

5. The transverse force transfer structure of a half-through steel tube concrete arch bridge according to claim 1, wherein, It also includes multiple column reinforcement steel plates, one end of which is connected to the main arch lower chord, and the other end of which is connected to the upper cross plate.

6. The transverse force transfer structure of a half-through steel tube concrete arch bridge according to claim 1, wherein It also includes multiple column internal anchoring steel bars, which are arranged in the arch rib intercolumniar, one end of which is connected to the upper cross plate, and the arch rib intercolumniar is poured with column inner concrete.

7. The transverse force transfer structure of a half-through steel tube concrete arch bridge according to claim 1, wherein, The support is an angle steel connected to one side of the steel girder.

8. A transverse force transfer structure for a half-through steel tube concrete arch bridge as claimed in any one of claims 1 to 7, wherein, The steel stopper is connected by four side plates.

9. The transverse force transfer structure of a half-through steel tube concrete arch bridge according to claim 8, characterized in that, The lower side of the steel stopper is provided with a drain hole.

10. The transverse force transfer structure of a half-through steel tube concrete arch bridge according to claim 9, characterized in that, It also includes a rain shield, which is connected to the steel girder and arranged above the teflon slide plate support.

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