Transverse-separation and vertical-rotation rapid construction equipment for full-fabricated bridge

Abstract

The utility model relates to a full assembly type bridge transverse separation and vertical rotation rapid construction device which comprises a transverse separation cover beam, a prefabricated pier and a vertical rotation base. Reamed holes in pier feet of the prefabricated bridge piers are firmly hinged to reamed holes in the vertical rotating bases, vertical rotating towers are arranged on the lower portions of pier bodies of the prefabricated bridge piers, vertical rotating inhaul cables are arranged on the upper portions of the pier bodies of the prefabricated bridge piers, the vertical rotating bases are arranged on the top face of a bearing platform, and transversely-divided bent caps are arranged on the tops of the prefabricated bridge piers. According to the utility model, the tedious working procedures of aerial posture adjustment and precise butt joint construction of heavy components are avoided, the utilization rate of a large crane is reduced, and the assembly precision and efficiency are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to bridge quick construction field, more specifically, relate to a kind of full assembly type bridge " horizontal division vertical rotation " quick construction equipment. BACKGROUND

[0002] Compared with traditional cast-in-place viaduct bridge, full assembly type bridge with integrated assembly of pier and bent cap reduces redundant procedures such as fixed formwork, mass concrete site pouring maintenance, has more superior construction quality and higher efficient construction speed, and its site construction is mainly component transportation and instrument hoisting, the amount of dust and noise generated in the construction process is low, the disturbance to the surrounding environment is small, and it is more suitable for application in urban complex construction conditions, bridge widening and existing road viaduct reconstruction projects. Full assembly type bridge technology has been used in Zhejiang and Shanghai areas first, and gradually promoted to the whole country for pilot engineering construction, and its construction technology is becoming mature. In various technical indicators of assembly type bridge, the weight of component is an important investigation factor, among them, the precast concrete bent cap between the bridge deck system and the precast pier, due to its core section design, the single weighing is the largest, and the transportation and hoisting restricted by its self weight often become the key to the implementation of full assembly type bridge design and construction, even whether it can be implemented.

[0003] The construction methods currently available for precast assembly type bent cap include multi-section bent cap method, two-section bent cap method, steel yoke beam method, socket method, lock method, counterweight method (post-anchoring method), layered assembly method, etc. Due to its smaller external dimensions, foreign assembly type bent caps often use socket method construction in combination with integral hoisting. Compared with foreign projects of the same type, the assembly type bent cap in China has high demand for shock absorption, large design span, and the most widely used construction process is still the two-section bent cap method. However, the actual construction feedback of the two-section bent cap method shows that the large-volume formwork cast-in-place operation in the middle of the bent cap is time-consuming and labor-intensive; the temporary support structure is cumbersome to assemble and disassemble and occupies too many lanes; the adjustment of the posture of the left and right half bent caps in the air is difficult; and the precision of the connection of the pipeline and steel in the middle of the bent cap is poor. The above factors together cause low efficiency in the construction of assembly type bent cap, and the construction efficiency needs to be improved. The main reason is that the bent cap section is arranged in the center along the direction of the lane.

[0004] Based on the problems faced in the application of the above-mentioned "two-section bent cap method", the lateral sectioning bent cap with integrated erection has broad application prospects, but the size of the connecting sleeve of the integrated precast bent cap and the underlying pier is limited, and the verticality of the precast pier construction is not good, which will directly lead to the failure of the integrated bent cap to fall into position, seriously affecting the construction efficiency of the assembly type bridge, and the construction precision requirement of the precast pier is too high, which has become the main bottleneck of the integrated bridge assembly technology. The above-mentioned precast bent cap assembly has the problems of low efficiency and high construction precision requirement of precast pier. UTILITY MODEL CONTENTS

[0005] The utility model wants to solve the technical problem of providing a kind of full assembly type bridge " horizontal division vertical rotation " quick construction equipment full assembly type bridge " horizontal division vertical rotation " quick construction equipment, it can consider construction efficiency and precision in all, the reasonable integration of integrated bent cap carries out bridge quick assembly, can greatly improve construction efficiency, greatly reduce the concrete formwork pouring of bulky, air butt joint and pre-stressed construction operation, traditional redundant procedure such as auxiliary temporary pier operation.

[0006] The utility model solves the technical problems by adopting the technical scheme of constructing a kind of full assembly type bridge " horizontal division vertical rotation " quick construction equipment, including horizontal division bent cap, prefabricated pier and vertical rotation pedestal;The pier foot of the prefabricated pier is hinged with the hinge hole of the vertical rotation pedestal, the lower position of the pier body of the prefabricated pier is provided with vertical rotation tower, the upper position of the pier body of the prefabricated pier is provided with vertical rotation cable, the vertical rotation pedestal is arranged on the top surface of pile cap, and the top of the prefabricated pier is provided with horizontal division bent cap.

[0007] According to the above scheme, the vertical rotation pedestal is arranged on the top surface of pile cap by pre-embedded reinforcement, the horizontal division bent cap is arranged on the horizontal assembly platform, and the horizontal assembly platform and the prefabricated pier are arranged on the ground.

[0008] According to the above scheme, the horizontal division bent cap includes first horizontal division bent cap and second horizontal division bent cap.

[0009] According to the above scheme, the first horizontal division bent cap is horizontal division bent cap left limb, and the second horizontal division bent cap is horizontal division bent cap right limb;The first horizontal division bent cap and the second horizontal division bent cap are symmetrically arranged and correspondingly arranged with butt joint pin holes.

[0010] According to the above scheme, the vertical rotation tower can rotate around the mounting point of the prefabricated pier.

[0011] According to the above scheme, the prefabricated pier is fastened on the vertical rotation pedestal by bolts.

[0012] The full assembly type bridge " horizontal division vertical rotation " quick construction equipment of the utility model has the following beneficial effects:

[0013] 1、The utility model cuts prefabricated bent cap into two parts along the horizontal bridge direction, assists the horizontal division bent cap, prefabricated pier horizontal assembly platform, then integrally vertically rotates and installs in position, so that manufacturing and transportation are convenient, the component size of horizontal division bent cap is similar to the conventional small box girder component size, manufacturing, transportation and hoisting construction are more convenient, overcome the limitation of transportation and hoisting, improve the efficiency of overall construction;

[0014] 2、The utility model discloses simple and convenient on-site assembly, and the fine grouting sleeve connection of horizontal split bent cap and prefabricated pier can be completed before overall hoisting with the aid of the slightly inclined operation platform of construction site, which completely avoids cumbersome component aerial attitude adjustment and accurate butt joint construction and the like complicated procedures, reduces large crane utilization rate, and improves the precision and efficiency of assembly;

[0015] 3、The utility model discloses vertical rotation construction convenient, and vertical rotation tower is easy to detach, can be reused, and construction site space is rich, and the vertical rotation horizontal tension provided by ground anchor gradually reduces along with the rotation of integral substructure pier beam, and high-precision grouting attitude adjustment is completely feasible, and integral structure integral lifting in position can greatly improve construction efficiency, and a large amount of concrete formwork pouring, aerial butt joint and prestressed construction operation, auxiliary temporary supporting pier operation and the like traditional redundant procedures are reduced greatly;

[0016] 4、The utility model discloses horizontal split bent cap technology has strong adaptability, and the size and shape of segmented can be adjusted according to specific engineering demand, and vertical rotation construction technology has extremely strong expansibility, is suitable for the pier-foundation connection of various cross section sizes, and can be suitable for different types of building and bridge engineering;

[0017] 5、The utility model discloses horizontal split bent cap to long side cutting greatly reduces the large volume concrete on-site pouring operation, thereby saving concrete age, improving overall construction efficiency, can be directly installed on the existing double column bent pier, does not need to construct temporary supporting pier, greatly saves auxiliary facility engineering quantity, and the size is close to the size of conventional small box girder, and interval transportation and site hoisting instrument can satisfy, and long strip hoisting component aerial attitude adjustment is more convenient, and prestressed tension, beam maintenance and the like procedure can be completed in prefabricated beam field, while greatly improving prefabricated component quality, effectively saves on-site prestressed installation working hours;

[0018] 6、The utility model discloses bent cap and pier first lie down and splice in construction site, and lie down and splice process can easily adjust pier beam connection construction error, effectively avoid large volume and large quality bent cap aerial operation amount, after the close connection of lie down and splice bent cap-pier, modular tower frame cable connection ground anchor, integral vertical rotation one-time pier beam installation in position, construction precision is controllable, and bridge substructure construction efficiency is greatly improved, and can also be compatible with intelligent construction technology, is the effective supplement of intelligent transformation of manufacturing industry to construction industry. ACCURACY

[0019] The utility model will be further described below in combination with the drawings and examples, and the drawings are as follows:

[0020] Figure 1 It is horizontal split lie down and assemble schematic diagram of the utility model full assembly type bridge "horizontal split vertical rotation" quick construction process;

[0021] Figure 2It is the lateral split horizontal assembly assembly side view of the full assembly type bridge "lateral split vertical rotation" quick construction process of the utility model;

[0022] Figure 3 It is the lateral split horizontal assembly assembly front view of the full assembly type bridge "lateral split vertical rotation" quick construction process of the utility model;

[0023] Figure 4 It is the structure in place schematic view of the full assembly type bridge "lateral split vertical rotation" assembly bridge lower structure construction process of the utility model;

[0024] Figure 5 It is the detail structure drawing of the "lateral split" prefabricated bent cap of the utility model;

[0025] In the drawing: 1, lateral split bent cap, 2, prefabricated pier, 3, vertical rotation tower, 4, vertical rotation base, 5, vertical rotation cable, 6, horizontal assembly platform, 7, ground, 8, top surface of pile cap, 9, lateral split bent cap left limb, 10, lateral split bent cap right limb, 11, butt joint pin hole, 12, bonding interface, 13, cushion stone. DETAILED DESCRIPTION

[0026] In order to have more clear understanding of the technical features, purposes and effects of the utility model, the specific implementation mode of the utility model will be explained in detail by referring to the drawings.

[0027] As shown in the drawing, Figures 1-5 The utility model provides a full assembly type bridge "lateral split vertical rotation" quick construction equipment, including lateral split bent cap 1, prefabricated pier 2 and vertical rotation base 4.

[0028] The hinge hole at the pier foot of prefabricated pier 2 is hingedly connected with the hinge hole of vertical rotation base 4 firmly, the lower position of the pier body of prefabricated pier 2 is provided with vertical rotation tower 3, the upper position of the pier body of prefabricated pier 2 is provided with vertical rotation cable 5, vertical rotation base 4 is arranged on the top surface of pile cap 8, the top of prefabricated pier 2 is provided with lateral split bent cap 1, vertical rotation base 4 is arranged on the top surface of pile cap 8 through pre-buried reinforcement, lateral split bent cap 1 is arranged on horizontal assembly platform 6, horizontal assembly platform 6 and prefabricated pier 2 are all arranged on ground 7.

[0029] Preferably, lateral split bent cap 1 includes first piece lateral split bent cap and second piece lateral split bent cap.

[0030] Preferably, first piece lateral split bent cap is lateral split bent cap left limb 9, and second piece lateral split bent cap is lateral split bent cap right limb 10; first piece lateral split bent cap and second piece lateral split bent cap are symmetrically arranged and correspondingly arranged butt joint pin hole 11.

[0031] Preferably, vertical rotation tower 3 can rotate around the mounting point of prefabricated pier 2.

[0032] Preferably, prefabricated pier 2 is fastened on vertical rotation base 4 through bolts.

[0033] The utility model also provides a kind of full assembly type bridge " horizontal division vertical rotation " quick construction technology, main body structure is horizontal division bent cap 1 and prefabricated pier 2, comprising the following steps:

[0034] S1, before hoisting horizontal division bent cap 1 and prefabricated pier 2 to construction site, first by embedding reinforcement, install vertical rotation base 4 to top surface 8 of bearing platform, and according to the inclination angle of pier when lying, according to the inclination angle of pier when lying, cut certain plane in advance on the ground 7 pit side, and reach specified position in advance by lying platform 6;

[0035] S2, officially start construction, first slightly adjust inclination angle, hoist two prefabricated piers 2, so that the pier foot hole of prefabricated pier 2 is hinged with the hinge hole of vertical rotation base 4, then slowly lower prefabricated pier 2 until prefabricated pier 2 contacts with the cutting plane of ground 7, then adjust the support height of lying platform 6;After the above three points contact, remove lifting rope.

[0036] S3, hoist horizontal division bent cap 1, control the inclination angle of horizontal division bent cap 1, place horizontal division bent cap 1 on lying platform 6, complete pier beam consolidation operation between horizontal division bent cap 1 and prefabricated pier 2, specifically comprising the following steps:

[0037] S301, control the inclination angle of the first piece of horizontal division bent cap, place the first piece of horizontal division bent cap on lying platform 6, then slowly slide the first piece of horizontal division bent cap along lying platform 6 until the first piece of horizontal division bent cap is simultaneously connected with the two prefabricated pier embedded reinforcement holes;

[0038] S302, complete the butt joint of the second piece of horizontal division bent cap and prefabricated pier 2, after fastening the first piece of horizontal division bent cap and the second piece of horizontal division bent cap, complete the pier beam consolidation operation between horizontal division bent cap 1 and prefabricated pier 2.

[0039] Horizontal division bent cap 1 includes the first piece of horizontal division bent cap and the second piece of horizontal division bent cap;The first piece of horizontal division bent cap is horizontal division bent cap left limb 9, and the second piece of horizontal division bent cap is horizontal division bent cap right limb 10;The first piece of horizontal division bent cap and the second piece of horizontal division bent cap are symmetrically arranged and correspondingly arranged butt joint pin hole 11, and when the first piece of horizontal division bent cap and the second piece of horizontal division bent cap are connected, first apply adhesive on the bonding interface 12, after lying in place, complete pre-pressing and fastening in butt joint pin hole 11 by bolt or prestressed structure, and carry out cushion stone 13 construction, form complete bent cap, assist pier beam consolidation.Hoist horizontal division bent cap 1: control the inclination angle of the first piece of horizontal division bent cap, first place the first piece of horizontal division bent cap on lying platform 6, then slowly slide the first piece of horizontal division bent cap along lying platform 6 until the first piece of horizontal division bent cap is simultaneously connected with the two prefabricated pier 2 embedded reinforcement holes, complete the butt joint of the second piece of horizontal division bent cap and prefabricated pier 2 in turn, after fastening the two pieces of horizontal division bent cap, complete the pier beam consolidation operation between horizontal division bent cap 1 and prefabricated pier 2.

[0040] S4, installing the vertical tower 3 under the pier body of the prefabricated pier 2 and matching the vertical cable 5, the vertical tower 3 can rotate around the installation point of the prefabricated pier 2;

[0041] After the transverse split cap beam 1 is integrated with the prefabricated pier 2, the vertical tower 3 is installed under the pier body of the prefabricated pier 2, the vertical tower 3 can rotate around the installation point, and then the vertical cable 5 is matched.

[0042] S5, through the ground anchor tension, the vertical cable 5 drives the vertical tower 3, the transverse split cap beam 1 and the prefabricated pier 2 to rotate around the vertical rotation base 4, until the vertical rotation base 4 is completely matched with the prefabricated pier 2, and the prefabricated pier 2 is fastened on the vertical rotation base 4. After installing the fastening bolt at the matching position and slightly adjusting the posture, the prefabricated pier 2 is fastened on the vertical rotation base 4 by means of the bolt.

[0043] S6, after the vertical rotation construction is completed, the vertical tower 3 and the vertical cable 5 can be removed, and the horizontal splicing platform 6 is transported to the next work station for circulation.

[0044] The working principle of the utility model is as follows:

[0045] The "transverse split vertical rotation" assembly bridge rapid construction process of the utility model utilizes the skill of vertical rotation construction. In the vertical rotation construction, the horizontal tension is provided by the ground anchor, but the length of the force arm of the ground anchor point from the rotation point is not enough, so the temporary tower is adopted to increase the driving force arm, which is helpful to rotate the structure by using smaller tension. With the rotation, the driving force arm is gradually reduced, but the structure dumping moment is also greatly reduced, so the ground anchor tension in the vertical rotation construction will be smaller and smaller, which is the mechanical balance principle adopted in the vertical rotation construction.

[0046] In the preferred embodiment of the utility model, the "transverse split vertical rotation" rapid construction process of the full assembly type bridge can be realized by other forms or combined cap beam cutting processes, and the utility model reserves the right to realize the combined form of the cap beam transverse split; the interface bonding and pin hole butt joint process between the segmented cap beams by the "transverse split method" can be realized by other forms or combined structures and devices, and the utility model reserves the right to realize the assembly method; the "transverse split vertical rotation" rapid construction process of the full assembly type bridge can be realized by other rotating body construction processes, and the utility model reserves the right to combine and expand the pier beam lower structure integrated positioning construction method of the horizontal splicing bridge; the "transverse split method" of the large-size prefabricated cap beam segmentation method in the utility model is cut in half along the transverse bridge direction perpendicular to the lane, and is laid horizontally on the hoisting platform site, after the integrated pier beam is connected, the new type bridge rapid construction process is installed by vertical rotation with the aid of the pile cap, and the research and development of the construction auxiliary equipment is also involved.

[0047] The embodiments of the present application are described above with reference to the drawings; however, the present application is not limited to the specific embodiments described above, but the specific embodiments described above are merely illustrative rather than restrictive, and a person of ordinary skill in the art can make many forms under the inspiration of the present application without departing from the purpose of the present application and the scope protected by the claims, and these all belong to the protection of the present application.

Claims

1. A full-preassembled bridge "horizontal division vertical rotation" rapid construction equipment, characterized in that, The application relates to a horizontal split cover beam, a prefabricated bridge pier and a vertical rotation base; a hinge hole at a pier foot of the prefabricated bridge pier is hingedly connected with a hinge hole of the vertical rotation base, a vertical rotation tower is arranged at a lower position of a pier body of the prefabricated bridge pier, vertical rotation cables are arranged at an upper position of the pier body of the prefabricated bridge pier, the vertical rotation base is arranged on a top surface of a bearing platform, and the top of the prefabricated bridge pier is provided with the horizontal split cover beam.

2. The "horizontal division vertical rotation" rapid construction equipment for the fully assembled bridge according to claim 1, characterized in that, The vertical rotation base is arranged on the top surface of the bearing platform through embedded steel bars, and the horizontal split cover beam is arranged on a lying splicing platform; the lying splicing platform and the prefabricated bridge pier are arranged on the ground.

3. The prefabricated bridge "horizontal division vertical rotation" rapid construction equipment according to claim 1, characterized in that, The horizontal split cover beam comprises a first piece of horizontal split cover beam and a second piece of horizontal split cover beam.

4. The "horizontal division vertical rotation" rapid construction equipment for the fully assembled bridge according to claim 3, characterized in that, The first piece of horizontal split cover beam is a left limb of the horizontal split cover beam, and the second piece of horizontal split cover beam is a right limb of the horizontal split cover beam; the first piece of horizontal split cover beam and the second piece of horizontal split cover beam are symmetrically arranged and correspondingly arranged with butt joint pin holes.

5. The prefabricated bridge "horizontal division vertical rotation" rapid construction equipment according to claim 1, characterized in that, The vertical rotation tower can rotate around a mounting point of the prefabricated bridge pier.

6. The prefabricated bridge "horizontal division vertical rotation" rapid construction equipment according to claim 1, characterized in that, The prefabricated bridge pier is fastened on the vertical rotation base through bolts.

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