CN212714460U - Bridge assembly - Google Patents

Abstract

The utility model provides a bridge assembly, include: the device comprises two pier columns, a first connecting rod and a second connecting rod, wherein each pier column is provided with a first through hole; the tie beam is of a cement-based composite material structure with built-in steel bars for engineering; the tie beam comprises a body part and thickened parts connected with two ends of the body part, the size of the thickened parts along the height direction is larger than that of the body part along the height direction, the thickened parts are provided with second through holes, and connecting pieces penetrate through the first through holes and the second through holes to connect the pier columns and the tie beam. Set up the tie beam between two pier studs, the tie beam has high ductility, plays power consumption cushioning effect, solves the pier stud and destroys and repair the big problem of the degree of difficulty owing to vibrations.

Description

Bridge assembly

Technical Field

The utility model relates to a bridge field especially relates to a bridge component.

Background

The construction of the highway extends to the west, the terrain is dangerous, the terrains are deep ditches and steep slopes, and higher requirements are put on the construction of bridges, so that the high-pier large-span continuous rigid bridge is widely applied. The double-limb thin-wall pier is a common pier form of a large-span rigid frame bridge, and is structurally characterized in that two piers fixedly connected with a main beam are arranged on a pier position, the two piers are provided with parallel pier walls, and the thickness of the pier walls is small. The double-limb thin-wall pier can effectively prolong the forward self-vibration period of the bridge and reduce horizontal seismic force. However, under the action of an earthquake, the double-limb thin-wall pier can generate plastic deformation, and after the pier is damaged after the earthquake, the pier is difficult to repair and replace.

SUMMERY OF THE UTILITY MODEL

In view of this, the main objective of the present invention is to provide a bridge assembly to solve the technical problem of how to improve the seismic resistance of the bridge and easily repair after earthquake.

In order to achieve the above purpose, the technical scheme of the utility model is realized like this:

an embodiment of the utility model provides a bridge assembly, include: the device comprises two pier columns, a first connecting rod and a second connecting rod, wherein each pier column is provided with a first through hole; the tie beam is of a cement-based composite material structure with built-in steel bars for engineering; the tie beam comprises a body part and thickened parts connected with two ends of the body part, the size of the thickened parts along the height direction is larger than that of the body part along the height direction, the thickened parts are provided with second through holes, and connecting pieces penetrate through the first through holes and the second through holes to connect the pier columns and the tie beam.

Further, the thickened portion is provided coaxially with the body portion, the second through hole is provided in plural and symmetrical with respect to the axis, the first through hole is provided in plural, and one of the connecting members passes through one of the first through holes and one of the second through holes.

Further, the pier column is provided with a plurality of first through holes at intervals in the width direction of the pier column, the thickened portion is provided with a plurality of second through holes, and one of the connecting pieces penetrates one of the first through holes and one of the second through holes.

Further, the pier stud is provided with a pre-buried pipe, and the first through hole is opened in the pre-buried pipe.

Furthermore, one end of the thickened part is connected with the body part, the other end of the thickened part is connected with the pier stud, and the other end of the thickened part is provided with a groove.

Further, the pier stud is connected the connection face of thickening portion is provided with the arch, the arch can be embedded in the recess in order to realize the pier stud with thickening portion joint.

Further, above the tie beam, the pier stud is provided with a bracket for hoisting the tie beam.

Further, the tie beam is provided with a through hole penetrating through the tie beam in the longitudinal direction.

Further, the through holes are provided in plural numbers in the width direction of the tie beam.

Further, a plurality of tie beams are arranged along the length direction of the pier stud.

The bridge component provided by the embodiment of the utility model comprises two pier studs and a tie beam for connecting the two pier studs, wherein the two independent pier studs are connected into a common stressed whole by the tie beam, so that the integral rigidity of the pier studs is enhanced, the stability of the pier studs is improved, and the section size of the pier studs is favorably reduced; the tie beam is a prefabricated cement-based composite structure with built-in steel bars for engineering, has high ductility, yields before the pier stud under the action of an earthquake, consumes earthquake energy firstly when the earthquake occurs, and delays the damage and destruction process of the pier stud; meanwhile, the tie beam is not easy to generate plastic deformation due to strong bending resistance and shearing resistance; even if the tie beam is plastically deformed, the pier stud still keeps an elastic state, and the repair can be quickly realized by conveniently detaching the connecting piece and replacing the new tie beam, so that the pier stud is prevented from being damaged, and the repair difficulty of the bridge after the earthquake is greatly reduced.

Drawings

Fig. 1 is a schematic structural diagram of a bridge module according to an embodiment of the present invention;

FIG. 2 is a cross-sectional view taken along line A-A of FIG. 1;

FIG. 3 is an enlarged view of a portion of the pre-buried pipe;

fig. 4 is a schematic structural diagram of another bridge module according to an embodiment of the present invention;

FIG. 5 is a cross-sectional view taken along line B-B of FIG. 4;

fig. 6 is a schematic structural view of the pier stud connecting a plurality of tie beams provided by the embodiment of the present invention.

Description of reference numerals:

10-pier column, 20-tie beam, 11-first through hole, 12-embedded pipe, 13-bulge, 14-bracket, 21-body part, 22-thickened part, 221-protruding part, 23-second through hole, 24-groove, 25-through hole and 30-connecting piece.

Detailed Description

The technical solution of the present invention will be described clearly and completely below with reference to the embodiments of the present invention, and obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Various combinations of the specific features in the embodiments described in the detailed description may be made without contradiction, for example, different embodiments may be formed by different combinations of the specific features, and in order to avoid unnecessary repetition, various combinations of the specific features in the present invention are not separately described.

In the following description, references to the terms "first/second" are only intended to distinguish between similar items and not to imply a particular order to the items, but it is to be understood that "first/second" is to be interpreted as interchangeable under the appropriate circumstances with respect to the particular order or sequence so that the embodiments of the invention described herein can be practiced in other sequences than those illustrated or described herein.

It should be understood that references to orientations describe "above", "below", "upper" and "lower" are all orientations during normal use.

In a specific embodiment, the bridge may be a structure erected on rivers, lakes and seas to allow vehicles, pedestrians and the like to smoothly pass through. In order to adapt to the modern high-speed developed traffic industry, the bridge can also be a building which is erected to cross mountain stream, unfavorable geology or meet other traffic needs and enables the traffic to be more convenient. The bridge comprises a superstructure, a substructure, a support and the like. Wherein, the upper structure is also called bridge span structure, which is the main structure for crossing obstacles; the support is a force transmission device arranged at the supporting positions of the bridge span structure and the lower part structure; the lower structure comprises an abutment, a pier column and a foundation; wherein, the pier stud is the lower part that bears the weight of bearing superstructure, is bridge structures's key component. Under the action of an earthquake, the pier stud is taken as a main weight bearing object and is easy to generate plastic deformation, once the pier stud is subjected to plastic deformation, great threat can be caused to the safety of the bridge, the economic loss caused by repairing and replacing the pier stud is large, and the repairing difficulty is large.

The utility model provides a bridge subassembly can be applied to continuous rigid frame bridge, also can be applied to large-span cable-stay bridge and suspension bridge, perhaps in any other bridge construction that receives earthquake threat for improve the anti-seismic performance of bridge and reduce the restoration degree of difficulty after shaking of bridge.

As shown in fig. 1, an embodiment of the present invention provides a bridge assembly including two piers 10 and a tie beam 20 connecting the two piers. The two piers 10 may have the same structure, and are both cylindrical bodies having a certain height, which refers to the up-down direction in fig. 1. According to the terrain requirement, the height of the pier stud 10 can be specifically designed according to the actual situation. It should be noted that, in order to meet the stability requirement and the static force calculation requirement in the construction stage and the bridging stage, the larger the height of the pier stud is, the larger the size of the cross section of the pier stud needs to be designed. Under the condition that no tie beam is arranged, in order to meet the stability and static calculation requirements, a pier column with a larger cross section size is required to be designed, and the material cost and the construction difficulty are increased.

The both ends of tie beam 20 are connected with two piers 10 respectively, and the size of tie beam 20 can be specifically designed according to the height and the cross section size of pier 20. The tie beam 20 has a plate-like structure having a width in a direction perpendicular to the paper surface in fig. 1. The width of the tie beam 20 may be the same as the width of the pier stud 10, and in the width direction, the tie beam 20 and the pier stud 10 may be attached to each other. The tie beam 20 is connected with the pier stud 10, and the two independent pier studs 10 are connected into a commonly stressed whole, so that the integral rigidity of the pier stud is enhanced, and the stability of the pier stud is improved; and since the two piers 10 are connected together to resist the vibration together, i.e. the effective cross-sectional dimension of the pier against the vibration is the sum of the cross-sectional dimensions of the two piers, the tie beam helps to reduce the cross-sectional dimension of the pier while it is maintained at a certain height.

The tie beam 20 is a concrete-based composite structure for construction with built-in steel reinforcement. The cement-based composite material for engineering is a fiber reinforced cement-based composite material, has higher ductility under tensile and shear loads, the ultimate tensile strain of the composite material can reach 3-5%, and the bending tensile strength of the composite material can generally reach 5-10 MPa. The tie beam 20 is made of engineering cement-based composite materials, so that the tie beam has large bending deformation and shearing deformation capacity. Under the action of an earthquake, the tie beam 20 yields before the pier stud 10, and is used as a first defense line of the earthquake, the tie beam 20 firstly consumes earthquake energy, and the damage and destruction process of the pier stud 10 is delayed; meanwhile, the tie beam 20 is not easy to generate plastic deformation due to strong bending resistance and shearing resistance; and the arrangement of reinforcing bars in the tie beam 20 further prevents the tie beam from breaking, enhancing the strength of the tie beam. Alternatively, the reinforcing steel bars may be arranged along the length direction of the tie beam, may be arranged along the width direction of the tie beam, may be annular stirrups in the length direction or the width direction, or may be arranged in any other form, as long as the force-bearing capacity of the tie beam can be enhanced and the yield before the pier stud occurs is satisfied.

As shown in fig. 1, the tie beam 20 includes a body portion 21 and thickened portions 22, and the thickened portions 22 are connected to both ends of the body portion 21 and are longer than the body portion 21 in the height direction (the up-down direction shown in fig. 1). Specifically, the tie beam 20 includes a body portion 21 and two thickened portions 22 connected to both ends of the body portion 21, respectively, the body portion 21 may be substantially a plate-shaped structure, and the thickened portions 22 may be a plate-shaped or a truncated-pyramid-shaped structure thicker than the body portion. The body portion 21 and the two thickened portions 22 may be of integrally formed construction. Two thickening portions 22 are located at the respective ends of the body portion for connection to two piers 10. In the height direction, the length of the thickened part 22 is greater than that of the body part 21, so that the connection area of the tie beam 20 and the pier stud 10 is increased and the connection stability is enhanced on the premise that the whole tie beam 20 is thinner and is preferentially yielded in the pier stud 10; the pressure intensity of the pier stud 10 in the yielding process of the tie beam 20 is reduced, and the pier stud 10 is prevented from being damaged; in addition, the thickened part 22 ensures the rotation capability and the shearing resistance capability of the tie beam 20 after yielding without cracking or breaking at the connection part of the tie beam 20 and the pier stud 10 during the earthquake.

Optionally, the cross section of the thickened portion 22 may be substantially a trapezoid structure, and in the height direction of the pier, the length of the end of the thickened portion 22 connected with the pier 10 is greater than that of the end connected with the tie beam 21, so that the largest possible connection area between the tie beam 20 and the pier 10 is ensured, the connection stability between the tie beam and the pier is further enhanced, and the pier is protected from being damaged. In addition, the closer the tie beam is to the pier stud, the larger the shearing force borne by the tie beam under the same earthquake action is, the more easily cracks and even breaks, and the trapezoidal structure of the tie beam is provided to help avoid the damage of the tie beam caused by uneven shearing force.

As shown in fig. 1, the thickened portion 22 is provided with a second through hole 23, the pier 10 is provided with a first through hole 11, and a connecting member 30 passes through the first through hole 11 and the second through hole 23 to connect the pier 10 and the tie beam 20. Specifically, the thickened portion 22 is connected with the body portion 21 to form a step structure, the pier stud 10 is provided with a first through hole 10 communicated with a second through hole 23, and the connecting member 30 can sequentially pass through the first through hole 11 and the second through hole 23 and is fixed with the tie beam 20 at one end of the second through hole 23 far away from the first through hole 11. The first and second through holes 11 and 23 may be bolt holes, and the connection member 30 may be a bolt. The second through holes 23 are provided at both upper and lower ends of the thickened portion 22 to expose the end portions of the connecting member 30, facilitating the detachment and installation of the connecting member 30. When the tie beam 20 damages the back, only need to detach the connecting piece 30 from first through-hole 11 and second through-hole 23 and make damage tie beam 20 detach pier stud 10 and can accomplish quick dismantlement process, only need install new tie beam can realize the shake back restoration of bridge afterwards, change tie beam 20 convenient and fast, avoid repairing pier stud 10 or the complicated engineering of changing pier stud 10, greatly reduced the shake back restoration degree of difficulty of bridge.

The bridge component provided by the embodiment of the utility model has the advantages that the tie beam 20 is connected between the two pier studs 10, and the tie beam 20 connects the two independent pier studs into a common stressed whole, so that the integral rigidity of the pier studs 10 is enhanced, the stability of the pier studs 10 is improved, and the reduction of the section size of the pier studs 10 is facilitated; the tie beam 20 is a prefabricated engineering cement-based composite material structure with built-in steel bars and has high ductility, under the action of an earthquake, the tie beam 20 yields before the pier stud 10 and serves as a first defense line of the earthquake, the tie beam 20 firstly consumes earthquake energy, and the damage and damage process of the pier stud 10 is delayed; meanwhile, the tie beam 20 is not easy to generate plastic deformation due to strong bending resistance and shearing resistance; even if the tie beam 20 is plastically deformed, the pier stud 10 is controlled to still keep an elastic state, and the repair can be quickly realized by conveniently detaching the connecting piece 30 and replacing the new tie beam 20, so that the pier stud 10 is prevented from being damaged, and the post-earthquake repair difficulty of the bridge is greatly reduced.

In some embodiments, as shown in fig. 1, the thickened portion 22 is disposed coaxially with the body portion 21, the axis refers to a center line (dotted line shown in fig. 1) in a height direction of the tie beam 20, and the height direction of the tie beam is in an up-down direction as shown in fig. 1. The coaxial arrangement of the thickened portion 22 and the body portion 21 ensures the uniformity of the force applied above and below the tie beam 20, and further ensures the force stability of the tie beam.

The second through-holes 23 are provided in plural and symmetrical with respect to the axis, the first through-holes 11 are provided in plural, and a connecting member 30 passes through one of the first through-holes 11 and one of the second through-holes 23. Specifically, the second through holes 23 are arranged symmetrically to the axis, so that the connecting pieces 30 can be arranged symmetrically to the axis, the first through holes 11 are correspondingly arranged, each connecting piece 30 can penetrate through one first through hole 11 and one corresponding second through hole 23 to connect the pier stud 10 and the tie beam 20, the symmetrical connection of the tie beam 20 in the width direction is completed by the connecting pieces 30, the connection stability of the tie beam 20 and the pier stud 10 in the thickness direction of the tie beam 20 is ensured, the pier stud 10 effectively transmits stress to the tie beam 20, the tie beam 20 is firstly buckled, the pier stud 10 is always kept in an elastic state, and the structure of the pier stud is protected from being damaged; and the symmetrical stability of the stress of the tie beam is ensured.

Alternatively, the connecting member 30 is provided at a portion of the thickened portion 22, which is thicker than the main body portion 21 in the height direction, and is indicated as a protrusion 221, and the connecting member 30 is provided at the protrusion 221, so that one end of the connecting member 30 can be exposed to facilitate the detachment and installation of the connecting member 30.

Optionally, the connection surface of the thickened portion 22 and the pier stud 10 may be coated with an epoxy adhesive, so as to further enhance the connection stability of the thickened portion 22 and the pier stud 10, thereby further ensuring that the pier stud 10 effectively transmits the stress to the tie beam 20, and ensuring that the stress of the tie beam in the thickness direction is uniform and stable.

In some embodiments, as shown in fig. 1 and 2, the pier 10 is provided with a plurality of first through holes 11 at intervals along the width direction of the pier 10, the thickened portion 22 is provided with a plurality of second through holes 22, and one connecting member 30 passes through one first through hole 11 and one second through hole 23. Specifically, the width direction refers to a direction perpendicular to the paper surface in fig. 1, that is, a left-right direction in fig. 2. The pier stud 10 is provided with the plurality of first through holes 11 along the width direction of the pier stud 10, so that the connecting pieces 30 can be arranged in a plurality of numbers, the second through holes 23 are correspondingly arranged in the width direction of the tie beam 20, each connecting piece 30 can penetrate through one first through hole 11 and one corresponding second through hole 23 to connect the pier stud 10 and the tie beam 20, the connection of the pier stud 10 and the tie beam 20 in the width direction is completed through the plurality of connecting pieces 30, the connection stability of the tie beam 20 and the pier stud 10 in the whole width direction is ensured, the pier stud 10 effectively transmits stress to the tie beam 20, the tie beam 20 is firstly buckled, the pier stud 10 always keeps an elastic state, and the structure of the pier stud is protected from being damaged; and ensures stable force application of the tie beam 20 in the width direction.

Optionally, the second through holes 23 may be uniformly arranged in the width direction of the pier, and the first through holes 11 are arranged on the tie beam 20 corresponding to the second through holes 23, so that the connecting members 30 can be uniformly arranged in intervals, and further, the uniform stress stability of the pier 10 and the tie beam 20 in the width direction is ensured.

In some embodiments, as shown in fig. 3, the pier stud 10 is provided with a pre-embedded pipe 12, and the pre-embedded pipe 12 is provided with the first through hole 11. Specifically, the pier stud 10 is provided with the embedded pipe 12 in the prefabrication and forming process, and the pier stud 10 and the embedded pipe 12 are connected into a whole. The pre-buried pipe 12 has a hollow pipe pile structure which forms the first through hole 11. The connecting member 30 is inserted into the first through hole 11 formed in the embedded pipe 12 to be connected to the pier stud 10. The process of detaching the connecting piece 30 from the first through hole 11 only needs to draw the connecting piece 30 away from the second through hole 11 of the embedded pipe 12, and the damage of the internal structure of the pier stud 10 can not be caused because the connecting piece is not directly connected with the pier stud 10, the structure of the pier stud 10 can not be influenced in the process of replacing and detaching the connecting piece, and the structural integrity of the pier stud 10 is ensured.

Optionally, the embedded pipe 12 may have an internal thread, the connecting member 30 may have an external thread, the connecting member 30 is in threaded connection with the embedded pipe 12, the connecting member 30 is firmly and reliably connected with the embedded pipe 12, and the connection stability between the connecting member 30 and the pier stud 10 is further ensured.

Alternatively, the second through hole 23 may be directly formed by the tie beam 20, and the connecting member 30 is directly connected to the tie beam 20 in contact therewith, without indirectly forming the second through hole 23 through another structure. Since the tie beam 20 is the structure to be replaced, damage to the tie beam 20 need not be considered during the process of detaching the connector 30. The connecting piece 30 is directly contacted and connected with the tie beam, so that the manufacturing process of the tie beam 20 is simplified; and the connection firmness of the connecting piece and the tie beam is enhanced.

In some embodiments, as shown in fig. 4, thickened portion 22 has one end connected to body portion 21 and the other end connected to pier 10, said other end being provided with a recess 24. Specifically, the end of the thickened portion 22 connected to the pier stud 10 is provided with a groove 24, and the groove 24 may be plural and extend in the width direction of the tie beam 20.

In some embodiments, as shown in fig. 4, the connection surface of the pier stud 10 and the thickened portion 22 is provided with a plurality of protrusions 13, specifically, the protrusions 13 may be plural and extend along the width direction of the pier stud 10, and the number and size of the protrusions 13 and the grooves 24 may be determined according to the cross-sectional size of the tie beam 20 in the width direction. The thickened part 22 and the pier stud 10 can be clamped by embedding the bulge 13 and the groove 24 instead of being connected smoothly, so that the connection resistance of the thickened part 22 and the pier stud 10 is increased, and the connection stability is enhanced; more importantly, the arrangement enables the connecting surface to resist shearing force generated by horizontal displacement, and the shearing resistance of the connecting surface is enhanced.

Optionally, the size of the protrusion 13 is slightly smaller than that of the groove 24, so that the protrusion 13 can be embedded into the groove 24 to realize clamping connection between the pier stud 10 and the thickened portion 22; and the position of the bulge 13 and the groove 24 is correspondingly arranged, so that each bulge 13 can be embedded into the groove 24 to realize the attaching connection of the tie beam 20 and the pier stud 10, and the connection stability is enhanced.

In some embodiments, as shown in fig. 4 and 5, the pier stud 10 is provided with a bracket 14 above the tie beam 20 for hoisting the tie beam 20. Specifically, the leg 14 is an inverted trapezoid protruding from the side wall of the pier 10 at the upper end of the pier 10, and the longer side of the parallel sides of the trapezoid is connected to the side wall of the pier 10. In the process of prefabricating the pier stud 10, the bracket 14 can be permanently installed by being connected with the pier stud 10 in a pre-embedded mode, the bracket 14 is firmly and reliably installed with the pier stud 10, and the bracket can be permanently used after being installed once. The bracket is provided with a plane on the upper surface and a bevel edge on the lower surface and is used for installing a lifting device so as to conveniently hoist the tie beam 20 to a preset position. The corbels are arranged, so that the tie beam 20 is convenient to disassemble and assemble, and the tie beam 20 is time-saving and labor-saving to replace.

In some embodiments, as shown in fig. 4 and 5, the tie beam 20 is provided with a through hole 25 penetrating the tie beam 20 in the longitudinal direction. Specifically, the longitudinal direction of the tie beam 20 refers to the left-right direction in fig. 4, that is, the direction perpendicular to the paper surface in fig. 5. The longitudinal direction is not necessarily the direction in which the dimension of the tie beam 20 is the largest. The tie beam 20 has a through hole 25 formed along the longitudinal direction, and the shape of the through hole 25 may be various specific shapes such as a rectangle, a circle, or a polygon. The tie beam 20 is of a box structure with the through hole 25 instead of a solid structure, so that the material cost of the tie beam 20 can be reduced on the basis of meeting the stress requirement, the self weight of the tie beam 20 can be reduced, and the hoisting stability of the tie beam 20 is improved.

In some embodiments, as shown in fig. 5, the through hole 25 is provided in several numbers in the width direction of the tie beam 20. The through holes 25 can be uniformly arranged at intervals along the width direction of the tie beam 20, when the tie beam 20 is wide, one small-size through hole 25 is not enough to reduce the dead weight of the tie beam, and one large-size through hole 25 is arranged, so that the structural strength of the tie beam 20 is easily reduced, the tie beam 20 cannot meet the stress requirement, and the structural stress requirement of the tie beam is easier to meet by arranging the plurality of through holes 25 while the dead weight of the tie beam is reduced.

In some embodiments, as shown in fig. 6, a plurality of tie beams 20 are provided along the height direction of the pier stud 10. When the pier stud 10 is high, the stability of the pier stud 10 can be improved by arranging a plurality of tie beam 20 structures; the calculated length of the pier stud 10 can be reduced, and the section size of the pier stud is optimized; and a plurality of tie beams 20 are connected with two pier studs 10 together, so that the energy consumption and shock absorption effects are enhanced, the shock resistance is further enhanced, the pier studs 10 are delayed to enter plasticity, the single tie beam 20 is ensured to be subjected to plastic deformation, the pier studs 10 still keep an elastic stress state, the bridge can be repaired by simply and directly replacing the tie beam 20 subjected to plastic deformation, and the problem that the repair difficulty is large due to the damage of the pier stud 10 is avoided.

For clear understanding of the bridge assembly structure provided by the embodiment of the present invention, the following design concept of the tie beam is specifically described:

first, the tie beam length is set. Specifically, prefabricated tie beam length sets up according to the distance of two pier stud, and tie beam length is slightly littleer than the clean distance of two pier studs, makes things convenient for the construction hoist and mount of tie beam and guarantees that the tie beam can install between two pier studs.

Then, the tie beam section size is preliminarily planned. Specifically, the cross section size of the tie beam needs to ensure that the tie beam meets the basic requirements of static force checking calculation and stable checking calculation of the bridge structure; generally, the section of the tie beam is designed to be smaller than that of the pier column, and a plurality of tie beams are uniformly arranged along the pier height direction, so that the tie beam is guaranteed to yield and the pier column is not yielded under the action of rare earthquakes (E2 earthquakes), and the tie beam plays a role in energy consumption and shock absorption.

Secondly, a reasonable number and size of reinforcement designs are made within the tie beam. The reinforcing steel bar can be arranged along the length direction of the tie beam, can be arranged along the width direction of the tie beam, can also be a hoop reinforcement in the length direction or the width direction, or can be arranged in any other form, the reinforcing steel bar can enhance the stress capacity of the tie beam, and the requirement that the tie beam after reinforcement is matched is prior to the yield of the pier stud is met.

And finally, determining the number and the distance of the connecting pieces at the end part of the tie beam, determining the size of the thickened part at the end part of the tie beam, and ensuring that the rotation capacity and the shearing capacity of the tie beam after yielding meet the anti-seismic requirement under the action of an earthquake.

The structure of the tie beam is determined according to the concrete structure of the pier stud, and the tie beam connects two independent pier studs into a commonly stressed whole, so that the integral rigidity of the pier stud is enhanced, and the stability of the pier stud is improved; the tie beam is firstly yielding in the pier column under the action of an earthquake, so that the damage and damage process of the pier column is delayed, and the pier column is prevented from being damaged; even if the tie beam takes place plastic deformation, the pier stud can still keep the elasticity stress state, only need simply change the tie beam can realize that the shake of bridge is restoreed fast after, avoid restoreing the big problem of the restoration degree of difficulty that the pier stud leads to, greatly reduced the shake of bridge after restore the degree of difficulty.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention.

Claims (10)

1. A bridge module, comprising:

the device comprises two pier columns, a first connecting rod and a second connecting rod, wherein each pier column is provided with a first through hole;

the tie beam is of a cement-based composite material structure with built-in steel bars for engineering;

the tie beam comprises a body part and thickened parts connected with two ends of the body part, the size of the thickened parts along the height direction is larger than that of the body part along the height direction, the thickened parts are provided with second through holes, and connecting pieces penetrate through the first through holes and the second through holes to connect the pier columns and the tie beam.

2. The bridge assembly of claim 1, wherein the thickened portion is disposed coaxially with the body portion, the second through-hole is disposed in plurality and is symmetrical with respect to an axis of the thickened portion, the first through-hole is disposed in plurality, and one of the connecting members passes through one of the first through-holes and one of the second through-holes.

3. The bridge assembly of claim 1, wherein the pier stud is provided with a plurality of the first through holes at intervals in a width direction of the pier stud, the thickened portion is provided with a plurality of the second through holes, and one of the connectors passes through one of the first through holes and one of the second through holes.

4. The bridge assembly of claim 1, wherein the pier stud is provided with a pre-embedded pipe, and the pre-embedded pipe is provided with the first through hole.

5. The bridge assembly of any one of claims 1 to 4, wherein the thickened portion has one end connected to the body portion and another end connected to the pier stud, the other end being provided with a recess.

6. The bridge assembly according to claim 5, wherein the connecting surface of the pier stud with the thickened portion is provided with a protrusion, and the protrusion can be embedded into the groove to realize clamping connection of the pier stud with the thickened portion.

7. The bridge assembly of claim 1, wherein the pier stud is provided with a bracket above the tie beam for lifting the tie beam.

8. The bridge module according to any one of claims 1 to 4, wherein the tie beam is provided with a through hole penetrating the tie beam in a longitudinal direction.

9. The bridge module according to claim 8, wherein the through hole is provided in a plurality in a width direction of the tie beam.

10. The bridge assembly of claim 1, wherein a plurality of said tie beams are provided along a length of said pier stud.

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