WO2022156157A1 - Through arch bridge suspension bridge system reinforced by truss steel structure stiffened stringers and construction method therefor - Google Patents
Through arch bridge suspension bridge system reinforced by truss steel structure stiffened stringers and construction method therefor Download PDFInfo
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- WO2022156157A1 WO2022156157A1 PCT/CN2021/105468 CN2021105468W WO2022156157A1 WO 2022156157 A1 WO2022156157 A1 WO 2022156157A1 CN 2021105468 W CN2021105468 W CN 2021105468W WO 2022156157 A1 WO2022156157 A1 WO 2022156157A1
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- truss
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 137
- 239000010959 steel Substances 0.000 title claims abstract description 137
- 239000000725 suspension Substances 0.000 title claims abstract description 44
- 238000010276 construction Methods 0.000 title claims abstract description 18
- 238000004873 anchoring Methods 0.000 claims description 23
- 238000009434 installation Methods 0.000 claims description 12
- 230000002787 reinforcement Effects 0.000 abstract description 7
- 230000000694 effects Effects 0.000 abstract description 6
- 238000010586 diagram Methods 0.000 description 4
- 238000005452 bending Methods 0.000 description 3
- 201000010099 disease Diseases 0.000 description 3
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 239000007943 implant Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 229910000746 Structural steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 229910003460 diamond Inorganic materials 0.000 description 1
- 239000010432 diamond Substances 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D11/00—Suspension or cable-stayed bridges
- E01D11/02—Suspension bridges
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
Definitions
- the invention belongs to the technical field of bridge engineering, and in particular relates to a suspension bridge track system of a bottom-supported arch bridge reinforced by stiffening longitudinal beams of a truss-type steel structure and a construction method thereof.
- stiffening longitudinal beams For the reinforcement of the suspension bridge system of the type arch bridge, some choose to add concrete stiffened longitudinal beams, which have high rigidity and good vibration resistance, but are self-heavy, significantly increase the load on the suspension rod, and the construction is difficult, and some choose to add steel.
- Structural steel beams are used as stiffened longitudinal beams, but the material of the integrated steel stiffened longitudinal beams and the concrete structure of the bridge system is different, resulting in inconsistent deformation under the influence of temperature, resulting in new diseases such as beam displacement, concrete cracking, and bearing falling off. Appear.
- the Chinese utility model patent with the patent announcement number CN211571359U and the announcement date of 2020.09.25 discloses a down-supported arch bridge that increases the lateral stiffness of the main girder and reduces the horizontal thrust of the foundation, including arch ribs, arch seats, main beams, connecting arches
- the rib and the suspending cable of the main beam, the two sides of the main beam are tensioned with horizontal cables along the longitudinal bridge direction, and the support rods are arranged between the main beam and the horizontal cables, and the horizontal cables are connected to the horizontal cables through the support rods.
- the main beam forms a lateral limit connection of several nodes.
- the purpose of the present invention is to provide a kind of under-supported arch bridge suspension bridge reinforced with truss-type steel structure stiffening longitudinal beams and a construction method thereof. , truss steel structure to stiffen longitudinal beams and concrete beams, to achieve the effect of effective use of the suspension bridge channel system of the lower bearing arch bridge.
- the invention has the advantages of high overall rigidity and good stability of the integral under-supporting support structure including the truss-type steel structure stiffening longitudinal beam and the concrete transverse beam, the truss-type steel structure stiffening longitudinal beam being light in dead weight, large in bending rigidity, and easy to construct, and
- the integral bottom-bearing support structure has the advantages of small deformation that is not conducive to the stress of the structure due to temperature changes, and has the advantages of good overall reinforcement effect of the entire suspension bridge system, and has great application value and good economic benefits.
- a suspension bridge system of a bottom-supported arch bridge reinforced by truss-type steel structure stiffening longitudinal beams comprising an arch seat, a corbel arranged on the arch seat,
- the supports on the legs, the suspension rods, and the bridge deck also include truss-type steel structure stiffening longitudinal beams arranged on the supports, and between the two adjacent truss-type steel structure stiffening longitudinal beams and at both ends.
- the truss-type steel structure stiffening longitudinal beam includes four longitudinal main pipes, horizontal branch pipes arranged between the two longitudinal main pipes at the same level, and two longitudinal pipes arranged on the same side.
- the truss-type steel structure stiffening longitudinal beam further includes a stiffening steel plate disposed on the side of the outer anchoring steel plate away from the concrete beam and used for connecting the longitudinal main pipe.
- the truss-type steel structure stiffening longitudinal beam further includes an installation hole provided on the outer anchoring steel plate.
- the installation holes include implant screw holes disposed between the upper and lower sets of the longitudinal main pipes, and two sets of finish-rolled threaded steel bars respectively disposed outside the upper and lower two sets of the longitudinal main pipes.
- the concrete beam includes a concrete beam main body with the hanger rods on both ends of the upper surface and the outer anchoring steel plates respectively installed on the two vertical sides, arranged on the concrete beam main body and passing through it. Finished threaded steel bars passing through the finishing threaded steel bar holes, and implanted screws disposed on the concrete beam main body and passing through the implanted screw holes.
- finishing threaded steel bar has protruding ends on both sides of the concrete beam main body, and one end of the implanted screw rod is arranged outside the concrete beam main body.
- the truss-type steel structure stiffening longitudinal beam further includes a steel plate opening arranged on the outer anchoring steel plate and used to pass through the longitudinal main pipe
- the concrete beam also includes The two vertical sides of the main body of the concrete beam are slotted in the main body for inserting the protruding end of the longitudinal main pipe.
- a further preferred technical solution is that: the two sides of the outer anchoring steel plate are provided with the stiffening steel plate, and the concrete beam also includes two vertical sides respectively disposed on the main body of the concrete beam and used for inserting the steel plate.
- the steel plate is stiffened and communicated with the main body channel of the main body slot.
- a construction method for a suspension bridge track system of a bottom-supported arch bridge reinforced by stiffening longitudinal beams of a truss-type steel structure comprising the following steps in sequence:
- the invention achieves the effect of effectively using the suspension bridge track system of the lower-supported arch bridge by arranging corbels, supports, suspension rods, bridge decks, truss-type steel structure stiffening longitudinal beams and concrete transverse beams on the arch seat.
- the invention has the advantages of high overall rigidity and good stability of the integral under-supporting support structure including the truss-type steel structure stiffening longitudinal beam and the concrete transverse beam, the truss-type steel structure stiffening longitudinal beam being light in dead weight, large in bending rigidity, and easy to construct, and
- the integral bottom-bearing support structure has the advantages of small deformation that is not conducive to the stress of the structure due to temperature changes, and has the advantages of good overall reinforcement effect of the entire suspension bridge system, and has great application value and good economic benefits.
- FIG. 1 is a schematic diagram of the overall structure of the arch bridge suspension bridge track system in the present invention.
- FIG. 2 is a schematic diagram of the position structure of the arch seat in the present invention.
- FIG. 3 is a schematic diagram of the connection structure of the stiffened longitudinal beam of the truss-type steel structure and the concrete beam in the present invention.
- FIG. 4 is a schematic vertical cross-sectional view of a stiffened longitudinal beam of a truss-type steel structure in the present invention.
- FIG. 5 is a schematic diagram of the position structure of the main body slot in the present invention.
- FIG. 6 is a schematic view of the front structure of the main body slot and the main body channel in the present invention.
- a concrete beam 2 is arranged between several truss-type steel structure stiffening longitudinal beams 1, and the concrete beam 2 directly supports the bridge deck 15.
- the truss-type steel structure stiffening longitudinal beams 1 are supported on the supports 13 to complete the bottom-supporting support and reinforcement structure of the entire arch bridge suspension bridge system.
- the supports 13 are arranged on the corbels 12 to support the load of the entire bottom-supporting and reinforcing structure, and at the same time release the deformation of the bottom-supporting and reinforcing structure caused by temperature changes.
- the truss-type steel structure stiffening longitudinal beam 1 includes four longitudinal main pipes 101, a horizontal branch pipe 102 arranged between the two longitudinal main pipes 101 at the same level, and a horizontal branch pipe 102 arranged between the two longitudinal main pipes 101 on the same side.
- the vertical main pipe 101, the horizontal branch pipe 102, the vertical branch pipe 103 and the inclined branch pipe 104 can all be steel plates or shaped steels of different sizes, and the contact points are welded firmly, and the vertical branch pipe 103 and the inclined branch pipe 104 are arranged at intervals, and the shape of the outer anchoring steel plate 105 can be a rectangle, a circle, a triangle, a diamond, a Japanese-shaped or a mesh-shaped.
- the truss-type steel structure stiffening longitudinal beam 1 further includes a stiffening steel plate 106 disposed on the side of the outer anchoring steel plate 105 away from the concrete beam 2 and used for connecting the longitudinal main pipe 101 .
- the stiffening steel plate 106 is perpendicular to the outer anchoring steel plate 105 , and it is sufficient to ensure that each longitudinal main pipe 101 has at least four welding strengthening positions of the stiffening steel plate 106 .
- the truss-type steel structure stiffening longitudinal beam 1 further includes an installation hole provided on the outer anchoring steel plate 105 .
- the installation holes include implant screw holes 107 arranged between the upper and lower sets of the longitudinal main tubes 101 , and two sets of finish-rolled threaded steel bar holes 108 respectively arranged on the outer sides of the upper and lower sets of the longitudinal main tubes 101 .
- the implanted screw hole 107 and the finish-rolled threaded steel bar hole 108 are fixed installation positions between the truss-type steel structure stiffening longitudinal beam 1 and the concrete beam 2 to ensure that the entire lower bearing
- the reinforced structure has good integrity and high structural strength.
- the concrete beam 2 includes a concrete beam main body 201 on which the hanger rods 14 are respectively provided at both ends of the upper surface, and the outer anchoring steel plates 105 are respectively installed on the two vertical sides, which are arranged on the concrete beam main body 201 and pass through the The finishing threaded steel bar 202 in the finishing threaded steel bar hole 108 , and the implanted screw rod 203 disposed on the concrete beam main body 201 and passing through the implanted screw hole 107 .
- the finish-rolled threaded steel bar 202 may be fixed on the concrete beam main body 201, or a hole may be pre-opened on the concrete beam body 201, and the finish-rolled threaded steel bar 202 can be inserted into the opening, that is, Can.
- the finish-rolled threaded steel bars 202 on the upper and lower sides cooperate with the implanted screw 203 in the middle to ensure sufficient installation stability of the outer anchoring steel plate 105 on the concrete beam main body 201 .
- the finishing threaded steel bar 202 has protruding ends on both sides of the concrete beam main body 201 , and one end of the implanted screw rod 203 is disposed outside the concrete beam main body 201 .
- the truss-type steel structure stiffening longitudinal beam 1 also includes a steel plate opening 109 arranged on the outer anchoring steel plate 105 and used to pass through the longitudinal main pipe 101.
- the main body 201 has main body slots 204 on two vertical sides for inserting the protruding end of the longitudinal main pipe 101 .
- the two sides of the outer anchoring steel plate 105 are provided with the stiffening steel plates 106
- the concrete beam 2 also includes two vertical sides respectively disposed on the concrete beam main body 201 and used for inserting the stiffening steel plates 106. and communicate with the main body channel 205 of the main body slot 204 .
- the protruding end of the longitudinal main pipe 101 on the other side of the outer anchoring steel plate 105 is inserted into the main body slot 204, so that the longitudinal main pipe 101 and the concrete beam main body 201 are connected. There is a direct installation structure between them, which further ensures the installation strength of the truss-type steel structure stiffening longitudinal beam 1 on the concrete beam main body 201 .
- the stiffening steel plates 106 are divided into two groups, which are respectively arranged on two sides of the outer anchoring steel plates 105, so that the group of the stiffening steel plates 106 close to the concrete beam main body 201 can be inserted into the main body.
- the purpose of the channel 205 is also to assist in the reinforcement of the longitudinal main pipe 101 and the concrete beam main body 201, to ensure the high stability of the entire under-supported reinforcement structure, and to have a pre-aligned plug-in relationship, which is convenient for subsequent overall construction operations. .
- a construction method for a suspension bridge track system of a bottom-supported arch bridge reinforced by stiffening longitudinal beams of a truss-type steel structure comprising the following steps in sequence:
- the parts not mentioned in the construction method are all carried out in the way of the prior art, and it is sufficient to ensure that the above-mentioned suspension bridge system of the under-supported arch bridge can be obtained during construction. It has the advantages of simple construction, high efficiency and high application value.
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Abstract
The present invention relates to the technical field of bridge engineering, and in particular, to a through arch bridge suspension bridge system reinforced by truss steel structure stiffened stringers and a construction method therefor. In the present invention, corbels, supports, suspenders, bridge decks, truss steel structure stiffened stringers, and concrete beams are provided on abutments, to achieve the effect of effectively using the through arch bridge suspension bridge system. The present invention has the advantages that an integral through support structure comprising the truss steel structure stiffened stringers and the concrete beams, taken as a whole, is high in rigidity and good in stability, the truss steel structure stiffened stringers are light in dead weight, high in flexural rigidity, and easy to construct, the deformation amount unfavorable for structural stress and generated by the integral through support structure due to temperature changes is small, and the overall reinforcement effect for the entire suspension bridge system is good, and has a great application value and good economic benefits.
Description
本发明属于桥梁工程技术领域,尤其涉及一种采用桁式钢结构加劲纵梁加固的下承式拱桥悬吊桥道系及其施工方法。The invention belongs to the technical field of bridge engineering, and in particular relates to a suspension bridge track system of a bottom-supported arch bridge reinforced by stiffening longitudinal beams of a truss-type steel structure and a construction method thereof.
我国已建立了较多的下承式拱桥,早期悬吊桥道系设计并不是以加劲纵梁受力为主,而是以横梁受力为主,吊杆也是锚固在横梁两端,然后在横梁上铺设桥面板,绝大多数横梁之间没有设置加劲纵梁。现阶段很多下承式拱桥经过数年的运营使用后,其悬吊桥道系出现很多病害,如桥面振动过大、桥面破损严重、支座脱落等,且近几年来已相继发生了多起因吊杆意外断裂而导致桥面坍塌,甚至整座桥梁垮塌的严重事故,造成了无可挽回的经济损失。my country has built a lot of down-bearing arch bridges. The early suspension bridge design was not based on stiffening longitudinal beams, but on beams. The suspension rods were also anchored at both ends of the beams, and then laid on the beams. The bridge deck, most of the beams are not provided with stiffening longitudinal beams. At this stage, after several years of operation and use of many down-type arch bridges, their suspension bridges have many diseases, such as excessive bridge deck vibration, serious bridge deck damage, falling off bearings, etc. The bridge deck collapsed due to the accidental break of the boom, or even the entire bridge collapsed, resulting in irreparable economic losses.
随着多起下承式拱桥因悬吊桥道系损坏引起重大事故的发生以及各类型较多病害的出现,研究学者以及设计人员逐渐重视加劲纵梁的设置,然而面对已运行多年的下承式拱桥悬吊桥道系的加固,部分选择采用增设混凝土加劲纵梁,其刚度大,抗振性能好,但自重大,显著增大吊杆所受荷载,并且施工较困难,也有部分选择增设型钢结构钢梁作为加劲纵梁,但整体式的钢结构加劲纵梁与混凝土结构的桥道系材质不同在温度影响下产生变形不一致,导致横梁移位、混凝土开裂、支座脱落等新的病害问题出现。With the occurrence of many major accidents and various types of diseases caused by the damage of the suspension bridges of the lower bearing arch bridges, researchers and designers have gradually paid attention to the setting of stiffening longitudinal beams. For the reinforcement of the suspension bridge system of the type arch bridge, some choose to add concrete stiffened longitudinal beams, which have high rigidity and good vibration resistance, but are self-heavy, significantly increase the load on the suspension rod, and the construction is difficult, and some choose to add steel. Structural steel beams are used as stiffened longitudinal beams, but the material of the integrated steel stiffened longitudinal beams and the concrete structure of the bridge system is different, resulting in inconsistent deformation under the influence of temperature, resulting in new diseases such as beam displacement, concrete cracking, and bearing falling off. Appear.
因此,有必要设计一种自重较轻、刚度大、结构受力合理、施工便捷、耐久性能优良的采用桁式钢结构加劲纵梁加固的下承式拱桥悬吊桥道系及其施工方法,可有效解决下承式拱桥悬吊式桥道系整体刚度不足和稳定性较差的问题,并且能充分释放桁式钢结构加劲纵梁因温度变化所产生的不利于结构受力的变形。Therefore, it is necessary to design a lower-loaded arch bridge suspension bridge reinforced with truss-type steel structure stiffened longitudinal beams and its construction method, which is light in weight, high in rigidity, reasonable in structural stress, convenient in construction and excellent in durability. It effectively solves the problems of insufficient overall stiffness and poor stability of the suspended bridge channel system of the bottom-bearing arch bridge, and can fully release the deformation of the stiffened longitudinal beam of the truss-type steel structure caused by the temperature change, which is not conducive to the stress of the structure.
专利公告号为CN211571359U,公告日为2020.09.25的中国实用新型专利公开了一种增加主梁横向刚度并减小基础水平推力的下承式拱桥,包括拱肋、拱座、主梁、连接拱肋和主梁的吊索,所述主梁两侧沿纵桥向张拉设置有水平拉索,所述主梁与水平拉索之间设置有支撑杆,所述水平拉索通过支撑杆与主梁形成若干节点的横向限位连接。The Chinese utility model patent with the patent announcement number CN211571359U and the announcement date of 2020.09.25 discloses a down-supported arch bridge that increases the lateral stiffness of the main girder and reduces the horizontal thrust of the foundation, including arch ribs, arch seats, main beams, connecting arches The rib and the suspending cable of the main beam, the two sides of the main beam are tensioned with horizontal cables along the longitudinal bridge direction, and the support rods are arranged between the main beam and the horizontal cables, and the horizontal cables are connected to the horizontal cables through the support rods. The main beam forms a lateral limit connection of several nodes.
但是该实用新型专利中的下承式拱桥,存在抗弯刚度不足,以及整体施工难度大的问题。However, the down-supported arch bridge in this utility model patent has the problems of insufficient bending rigidity and difficulty in overall construction.
本发明的目的是提供一种采用桁式钢结构加劲纵梁加固的下承式拱桥悬吊桥道系及其施工方法,其能通过在拱座上设置牛腿、支座、吊杆、桥面板、桁式钢结构加劲纵梁以及混凝土横梁的方式,达到下承式拱桥悬吊桥道系有效使用的效果。本发明具有包括桁式钢结构加劲纵梁和混凝土横梁在内的整体下承式支撑结构整体刚度高、稳定性好,桁式钢结构加劲纵梁自重轻、抗弯刚度大、易于施工,以及整体下承式支撑结构因温度变化所产生的不利于结构受力的变形量小,对整个悬吊桥道系整体加固效果好的优点,具有重大的应用价值和良好的经济效益。The purpose of the present invention is to provide a kind of under-supported arch bridge suspension bridge reinforced with truss-type steel structure stiffening longitudinal beams and a construction method thereof. , truss steel structure to stiffen longitudinal beams and concrete beams, to achieve the effect of effective use of the suspension bridge channel system of the lower bearing arch bridge. The invention has the advantages of high overall rigidity and good stability of the integral under-supporting support structure including the truss-type steel structure stiffening longitudinal beam and the concrete transverse beam, the truss-type steel structure stiffening longitudinal beam being light in dead weight, large in bending rigidity, and easy to construct, and The integral bottom-bearing support structure has the advantages of small deformation that is not conducive to the stress of the structure due to temperature changes, and has the advantages of good overall reinforcement effect of the entire suspension bridge system, and has great application value and good economic benefits.
本发明解决上述问题采用的技术方案是:采用桁式钢结构加劲纵梁加固的下承式拱桥悬吊桥道系,包括拱座,设置在所述拱座上的牛腿,设置在所述牛腿上的支座,吊杆,以及桥面板,还包括设置在所述支座上的桁式钢结构加劲纵梁,以及设置在相邻所述桁式钢结构加劲纵梁之间且两端安装所述吊杆并用于支撑所述桥面板的混凝土横梁。The technical solution adopted by the present invention to solve the above problems is: a suspension bridge system of a bottom-supported arch bridge reinforced by truss-type steel structure stiffening longitudinal beams, comprising an arch seat, a corbel arranged on the arch seat, The supports on the legs, the suspension rods, and the bridge deck also include truss-type steel structure stiffening longitudinal beams arranged on the supports, and between the two adjacent truss-type steel structure stiffening longitudinal beams and at both ends. The concrete beams on which the hangers are installed and used to support the deck.
进一步优选的技术方案在于:所述桁式钢结构加劲纵梁包括四根纵向主管,设置在同一水平高度的两根所述纵向主管之间的水平支管,设置在同一侧的两根所述纵向主管之间的竖向支管、倾斜支管,以及设置在四根所述纵向主管端部并用于连接所述混凝土横梁的外包锚固钢板。A further preferred technical solution is: the truss-type steel structure stiffening longitudinal beam includes four longitudinal main pipes, horizontal branch pipes arranged between the two longitudinal main pipes at the same level, and two longitudinal pipes arranged on the same side. The vertical branch pipes, the inclined branch pipes between the main pipes, and the outer anchoring steel plates arranged at the ends of the four longitudinal main pipes and used for connecting the concrete beams.
进一步优选的技术方案在于:所述桁式钢结构加劲纵梁还包括设置在所述外包锚固钢板的远离所述混凝土横梁侧面上并用于连接所述纵向主管的加劲钢板。A further preferred technical solution is that the truss-type steel structure stiffening longitudinal beam further includes a stiffening steel plate disposed on the side of the outer anchoring steel plate away from the concrete beam and used for connecting the longitudinal main pipe.
进一步优选的技术方案在于:所述桁式钢结构加劲纵梁还包括设置在所述外包锚固钢板上的安装孔。A further preferred technical solution is that: the truss-type steel structure stiffening longitudinal beam further includes an installation hole provided on the outer anchoring steel plate.
进一步优选的技术方案在于:所述安装孔包括设置在上下两组所述纵向主管之间的植入螺杆孔,以及分别设置在上下两组所述纵向主管外侧的两组精轧螺纹钢筋孔。A further preferred technical solution is that: the installation holes include implant screw holes disposed between the upper and lower sets of the longitudinal main pipes, and two sets of finish-rolled threaded steel bars respectively disposed outside the upper and lower two sets of the longitudinal main pipes.
进一步优选的技术方案在于:所述混凝土横梁包括上表面两端分别设置所述吊杆、两个竖向侧面分别安装所述外包锚固钢板的混凝土横梁主体,设置在所述混凝土横梁主体上并穿过所述精轧螺纹钢筋孔的精轧螺纹钢筋,以及设置在所述混凝土横梁主体上并穿过所述植入螺杆孔的植入式螺杆。A further preferred technical solution is that: the concrete beam includes a concrete beam main body with the hanger rods on both ends of the upper surface and the outer anchoring steel plates respectively installed on the two vertical sides, arranged on the concrete beam main body and passing through it. Finished threaded steel bars passing through the finishing threaded steel bar holes, and implanted screws disposed on the concrete beam main body and passing through the implanted screw holes.
进一步优选的技术方案在于:所述精轧螺纹钢筋在所述混凝土横梁主体两侧均具有凸出端,所述植入式螺杆一端设置在所述混凝土横梁主体外侧。A further preferred technical solution is that the finishing threaded steel bar has protruding ends on both sides of the concrete beam main body, and one end of the implanted screw rod is arranged outside the concrete beam main body.
进一步优选的技术方案在于:所述桁式钢结构加劲纵梁还包括设置在所述外包锚固钢板上并用于穿过所述纵向主管的钢板开孔,所述混凝土横梁还包括分别设置在所述混凝土横梁主体两个竖向侧面上并用于***所述纵向主管凸出端的主体开槽。A further preferred technical solution is that: the truss-type steel structure stiffening longitudinal beam further includes a steel plate opening arranged on the outer anchoring steel plate and used to pass through the longitudinal main pipe, and the concrete beam also includes The two vertical sides of the main body of the concrete beam are slotted in the main body for inserting the protruding end of the longitudinal main pipe.
进一步优选的技术方案在于:所述外包锚固钢板的两个侧面上均设有所述加劲钢板,所述混凝土横梁还包括分别设置在所述混凝土横梁主体两个竖向侧面上并用于***所述加劲钢板且连通所述主体开槽的主体槽道。A further preferred technical solution is that: the two sides of the outer anchoring steel plate are provided with the stiffening steel plate, and the concrete beam also includes two vertical sides respectively disposed on the main body of the concrete beam and used for inserting the steel plate. The steel plate is stiffened and communicated with the main body channel of the main body slot.
一种采用桁式钢结构加劲纵梁加固的下承式拱桥悬吊桥道系的施工方法,依次包括以下步骤:A construction method for a suspension bridge track system of a bottom-supported arch bridge reinforced by stiffening longitudinal beams of a truss-type steel structure, comprising the following steps in sequence:
S1、焊接所述纵向主管、水平支管、竖向支管、倾斜支管、外包锚固钢板以及加劲钢板,得到所述桁式钢结构加劲纵梁;S1, welding the longitudinal main pipe, the horizontal branch pipe, the vertical branch pipe, the inclined branch pipe, the outer anchoring steel plate and the stiffening steel plate, to obtain the stiffened longitudinal beam of the truss-type steel structure;
S2、在所述混凝土横梁主体上预埋精轧螺纹钢筋以及植入式螺杆,并在所述混凝土横梁主体侧面上开设主体开槽以及主体槽道,得到所述混凝土横梁,并分隔固定;S2, pre-embed finish-rolled threaded steel bars and implanted screws on the main body of the concrete beam, and set a main body slot and a main channel on the side of the main body of the concrete beam to obtain the concrete beam, and separate and fix it;
S3、在所述拱座内侧开设孔洞,植入锚杆,安装所述牛腿;S3, opening a hole on the inner side of the abutment, implanting an anchor rod, and installing the corbel;
S4、在所述混凝土横梁两侧分别固定所述桁式钢结构加劲纵梁,完成中间多节段的所述桁式钢结构加劲纵梁的安装;S4. Fix the truss-type steel structure stiffening longitudinal beams on both sides of the concrete beam respectively, and complete the installation of the truss-type steel structure stiffening longitudinal beams with multiple sections in the middle;
S5、将两端最后两个所述桁式钢结构加劲纵梁固定在所述牛腿上的临时支座上,并与所述混凝土横梁连接,完成下承式拱桥整体结构;S5. Fix the last two truss-type steel structure stiffening longitudinal beams at both ends on the temporary supports on the corbels, and connect them with the concrete beams to complete the overall structure of the bottom-bearing arch bridge;
S6、将所述临时支座更换为永久的所述支座,整个采用桁式钢结构加劲纵梁加固的下承式拱桥悬吊桥道系施工完成。S6, the temporary support is replaced with the permanent support, and the construction of the entire suspension bridge system of the lower-supported arch bridge reinforced by the truss-type steel structure stiffening longitudinal beams is completed.
本发明通过在拱座上设置牛腿、支座、吊杆、桥面板、桁式钢结构加劲纵梁以及混凝土横梁的方式,达到下承式拱桥悬吊桥道系有效使用的效果。本发明具有包括桁式钢结构加劲纵梁和混凝土横梁在内的整体下承式支撑结构整体刚度高、稳定性好,桁式钢结构加劲纵梁自重轻、抗弯刚度大、易于施工,以及整体下承式支撑结构因温度变化所产生的不利于结构受力的变形量小,对整个悬吊桥道系整体加固效果好的优点,具有重大的应用价值和良好的经济效益。The invention achieves the effect of effectively using the suspension bridge track system of the lower-supported arch bridge by arranging corbels, supports, suspension rods, bridge decks, truss-type steel structure stiffening longitudinal beams and concrete transverse beams on the arch seat. The invention has the advantages of high overall rigidity and good stability of the integral under-supporting support structure including the truss-type steel structure stiffening longitudinal beam and the concrete transverse beam, the truss-type steel structure stiffening longitudinal beam being light in dead weight, large in bending rigidity, and easy to construct, and The integral bottom-bearing support structure has the advantages of small deformation that is not conducive to the stress of the structure due to temperature changes, and has the advantages of good overall reinforcement effect of the entire suspension bridge system, and has great application value and good economic benefits.
图1为本发明中拱桥悬吊桥道系的整体结构示意图。FIG. 1 is a schematic diagram of the overall structure of the arch bridge suspension bridge track system in the present invention.
图2为本发明中拱座的位置结构示意图。FIG. 2 is a schematic diagram of the position structure of the arch seat in the present invention.
图3为本发明中桁式钢结构加劲纵梁与混凝土横梁的连接结构示意图。FIG. 3 is a schematic diagram of the connection structure of the stiffened longitudinal beam of the truss-type steel structure and the concrete beam in the present invention.
图4为本发明中桁式钢结构加劲纵梁的竖向截面示意图。FIG. 4 is a schematic vertical cross-sectional view of a stiffened longitudinal beam of a truss-type steel structure in the present invention.
图5为本发明中主体开槽的位置结构示意图。FIG. 5 is a schematic diagram of the position structure of the main body slot in the present invention.
图6为本发明中主体开槽以及主体槽道的正面结构示意图。FIG. 6 is a schematic view of the front structure of the main body slot and the main body channel in the present invention.
以下所述仅为本发明的较佳实施例,并非对本发明的范围进行限定。The following descriptions are only preferred embodiments of the present invention, and do not limit the scope of the present invention.
实施例:如附图1、2、3、4、5以及附图6所示,采用桁式钢结构加劲纵梁加固的下承式拱桥悬吊桥道系,包括拱座11,设置在所述拱座11上的牛腿12,设置在所述牛腿12上的支座13,吊杆14,以及桥面板15,还包括设置在所述支座13上的桁式钢结构加劲纵梁1,以及设置在相邻所述桁式钢结构加劲纵梁1之间且两端安装所述吊杆14并用于支撑所述桥面板15的混凝土横梁2。Example: As shown in Figures 1, 2, 3, 4, 5 and Figure 6, the suspension bridge system of the lower-supported arch bridge reinforced by the truss-type steel structure stiffening longitudinal beams, including the arch seat 11, is arranged in the The corbel 12 on the arch 11 , the support 13 provided on the corbel 12 , the suspension rod 14 , and the bridge deck 15 , and the truss-type steel structure stiffening longitudinal beam 1 provided on the support 13 , and the concrete beams 2 arranged between the adjacent truss-type steel structure stiffening longitudinal beams 1 with the suspension rods 14 installed at both ends and used to support the bridge deck 15 .
在本实施例中,若干个所述桁式钢结构加劲纵梁1之间都设有一个所述混凝土横梁2,所述混凝土横梁2直接支撑所述桥面板15,两侧最边上的两个所述桁式钢结构加劲纵梁1支撑在所述支座13上,完成整个拱桥悬吊桥道系的下承式支撑加固结构。In this embodiment, a concrete beam 2 is arranged between several truss-type steel structure stiffening longitudinal beams 1, and the concrete beam 2 directly supports the bridge deck 15. The truss-type steel structure stiffening longitudinal beams 1 are supported on the supports 13 to complete the bottom-supporting support and reinforcement structure of the entire arch bridge suspension bridge system.
此外,所述牛腿12上布设所述支座13,用于支撑整个所述下承式支撑加固结构的荷载,同时释放所述下承式支撑加固结构因温度变化所产生的变形。In addition, the supports 13 are arranged on the corbels 12 to support the load of the entire bottom-supporting and reinforcing structure, and at the same time release the deformation of the bottom-supporting and reinforcing structure caused by temperature changes.
所述桁式钢结构加劲纵梁1包括四根纵向主管101,设置在同一水平高度的两根所述纵向主管101之间的水平支管102,设置在同一侧的两根所述纵向主管101之间的竖向支管103、倾斜支管104,以及设置在四根所述纵向主管101端部并用于连接所述混凝土横梁2的外包锚固钢板105。The truss-type steel structure stiffening longitudinal beam 1 includes four longitudinal main pipes 101, a horizontal branch pipe 102 arranged between the two longitudinal main pipes 101 at the same level, and a horizontal branch pipe 102 arranged between the two longitudinal main pipes 101 on the same side. The vertical branch pipes 103 and the inclined branch pipes 104 between them, and the outer anchoring steel plates 105 arranged at the ends of the four longitudinal main pipes 101 and used for connecting the concrete beams 2 .
在本实施例中,所述纵向主管101、水平支管102、竖向支管103以及倾斜支管104均可以是不同尺寸的钢板或者型钢,接触点焊接牢固,所述竖向支管103与所述倾斜支管104间隔设置,而所述外包锚固钢板105的形状可以是矩形、圆形、三角形、菱形、日字形或者目字形。In this embodiment, the vertical main pipe 101, the horizontal branch pipe 102, the vertical branch pipe 103 and the inclined branch pipe 104 can all be steel plates or shaped steels of different sizes, and the contact points are welded firmly, and the vertical branch pipe 103 and the inclined branch pipe 104 are arranged at intervals, and the shape of the outer anchoring steel plate 105 can be a rectangle, a circle, a triangle, a diamond, a Japanese-shaped or a mesh-shaped.
所述桁式钢结构加劲纵梁1还包括设置在所述外包锚固钢板105的远离所述混凝土横梁2侧面上并用于连接所述纵向主管101的加劲钢板106。The truss-type steel structure stiffening longitudinal beam 1 further includes a stiffening steel plate 106 disposed on the side of the outer anchoring steel plate 105 away from the concrete beam 2 and used for connecting the longitudinal main pipe 101 .
在本实施例中,所述加劲钢板106与所述外包锚固钢板105垂直,保证每个所述纵向主管101上都至少具有四处所述加劲钢板106的焊接强化位置即可。In this embodiment, the stiffening steel plate 106 is perpendicular to the outer anchoring steel plate 105 , and it is sufficient to ensure that each longitudinal main pipe 101 has at least four welding strengthening positions of the stiffening steel plate 106 .
所述桁式钢结构加劲纵梁1还包括设置在所述外包锚固钢板105上的安装孔。所述安装孔包括设置在上下两组所述纵向主管101之间的植入螺杆孔107,以及分别设置在上下两组所述纵向主管101外侧的两组精轧螺纹钢筋孔108。The truss-type steel structure stiffening longitudinal beam 1 further includes an installation hole provided on the outer anchoring steel plate 105 . The installation holes include implant screw holes 107 arranged between the upper and lower sets of the longitudinal main tubes 101 , and two sets of finish-rolled threaded steel bar holes 108 respectively arranged on the outer sides of the upper and lower sets of the longitudinal main tubes 101 .
在本实施例中,所述植入螺杆孔107以及精轧螺纹钢筋孔108是所述桁式钢结构加劲纵梁1和所述混凝土横梁2之间固定安装的位置,保证整个所述下承式支撑加固结构整体性好,结构强度大。In this embodiment, the implanted screw hole 107 and the finish-rolled threaded steel bar hole 108 are fixed installation positions between the truss-type steel structure stiffening longitudinal beam 1 and the concrete beam 2 to ensure that the entire lower bearing The reinforced structure has good integrity and high structural strength.
所述混凝土横梁2包括上表面两端分别设置所述吊杆14、两个竖向侧面分别安装所述外包锚固钢板105的混凝土横梁主体201,设置在所述混凝土横梁主体201上并穿过所述精轧螺纹钢筋孔108的精轧螺纹钢筋202,以及设置在所述混凝土横梁主体201上并穿过所述植入螺杆孔107的植入式螺杆203。The concrete beam 2 includes a concrete beam main body 201 on which the hanger rods 14 are respectively provided at both ends of the upper surface, and the outer anchoring steel plates 105 are respectively installed on the two vertical sides, which are arranged on the concrete beam main body 201 and pass through the The finishing threaded steel bar 202 in the finishing threaded steel bar hole 108 , and the implanted screw rod 203 disposed on the concrete beam main body 201 and passing through the implanted screw hole 107 .
在本实施例中,所述精轧螺纹钢筋202可以固定在所述混凝土横梁主体201上,也可以是所述混凝土横梁主体201上预先开孔,所述精轧螺纹钢筋202***该开孔即可。In this embodiment, the finish-rolled threaded steel bar 202 may be fixed on the concrete beam main body 201, or a hole may be pre-opened on the concrete beam body 201, and the finish-rolled threaded steel bar 202 can be inserted into the opening, that is, Can.
其中,上下两侧的所述精轧螺纹钢筋202,配合中间的所述植入式螺杆203,可以保证所述混凝土横梁主体201上的所述外包锚固钢板105安装稳定性足够。The finish-rolled threaded steel bars 202 on the upper and lower sides cooperate with the implanted screw 203 in the middle to ensure sufficient installation stability of the outer anchoring steel plate 105 on the concrete beam main body 201 .
所述精轧螺纹钢筋202在所述混凝土横梁主体201两侧均具有凸出端,所述植入式螺杆203一端设置在所述混凝土横梁主体201外侧。所述桁式钢结构加劲纵梁1还包括设置在所述外包锚固钢板105上并用于穿过所述纵向主管101的钢板开孔109,所述混凝土横梁2还包括分别设置在所述混凝土横梁主体201两个竖向侧面上并用于***所述纵向主管101凸出端的主体开槽204。所述外包锚固钢板105的两个侧面上均设有所述加劲钢板106,所述混凝土横梁2还包括分别设置在所述混凝土横梁主体201两个竖向侧面上并用于***所述加劲钢板106且连通所述主体开槽204的主体槽道205。The finishing threaded steel bar 202 has protruding ends on both sides of the concrete beam main body 201 , and one end of the implanted screw rod 203 is disposed outside the concrete beam main body 201 . The truss-type steel structure stiffening longitudinal beam 1 also includes a steel plate opening 109 arranged on the outer anchoring steel plate 105 and used to pass through the longitudinal main pipe 101. The main body 201 has main body slots 204 on two vertical sides for inserting the protruding end of the longitudinal main pipe 101 . The two sides of the outer anchoring steel plate 105 are provided with the stiffening steel plates 106, and the concrete beam 2 also includes two vertical sides respectively disposed on the concrete beam main body 201 and used for inserting the stiffening steel plates 106. and communicate with the main body channel 205 of the main body slot 204 .
在本实施例中,所述纵向主管101在所述外包锚固钢板105另一侧的凸出端再与所述主体开槽204插接,这样所述纵向主管101与所述混凝土横梁主体201之间就有直接安装结构,进一步保证所述桁式钢结构加劲纵梁1在所述混凝土横梁主体201上的安装强度。In this embodiment, the protruding end of the longitudinal main pipe 101 on the other side of the outer anchoring steel plate 105 is inserted into the main body slot 204, so that the longitudinal main pipe 101 and the concrete beam main body 201 are connected. There is a direct installation structure between them, which further ensures the installation strength of the truss-type steel structure stiffening longitudinal beam 1 on the concrete beam main body 201 .
此外,所述加劲钢板106分两组,分别设置在所述外包锚固钢板105的两个侧面上,这样靠近所述混凝土横梁主体201的那一组所述加劲钢板106就可以卡入所述主体槽道205,目的同样是辅助加固所述纵向主管101和所述混凝土横梁主体201,保证整个所述下承式支撑加固结构稳定性高,具有一个预先对齐插接关系,方便后续的整体施工操作。In addition, the stiffening steel plates 106 are divided into two groups, which are respectively arranged on two sides of the outer anchoring steel plates 105, so that the group of the stiffening steel plates 106 close to the concrete beam main body 201 can be inserted into the main body. The purpose of the channel 205 is also to assist in the reinforcement of the longitudinal main pipe 101 and the concrete beam main body 201, to ensure the high stability of the entire under-supported reinforcement structure, and to have a pre-aligned plug-in relationship, which is convenient for subsequent overall construction operations. .
一种采用桁式钢结构加劲纵梁加固的下承式拱桥悬吊桥道系的施工方法,依次包括以下步骤:A construction method for a suspension bridge track system of a bottom-supported arch bridge reinforced by stiffening longitudinal beams of a truss-type steel structure, comprising the following steps in sequence:
S1、焊接所述纵向主管101、水平支管102、竖向支管103、倾斜支管104、外包锚固钢板105以及加劲钢板106,得到所述桁式钢结构加劲纵梁1;S1, welding the longitudinal main pipe 101, the horizontal branch pipe 102, the vertical branch pipe 103, the inclined branch pipe 104, the outer anchoring steel plate 105 and the stiffening steel plate 106 to obtain the truss-type steel structure stiffening longitudinal beam 1;
S2、在所述混凝土横梁主体201上预埋精轧螺纹钢筋202以及植入式螺杆203,并在所述混凝土横梁主体201侧面上开设主体开槽204以及主体槽道205,得到所述混凝土横梁2,并分隔固定;S2. Pre-embed the finished-rolled threaded steel bar 202 and the implanted screw rod 203 on the concrete beam main body 201, and set a main body slot 204 and a main body channel 205 on the side surface of the concrete beam main body 201 to obtain the concrete beam. 2, and separated and fixed;
S3、在所述拱座11内侧开设孔洞,植入锚杆,安装所述牛腿12;S3, opening a hole on the inner side of the abutment 11, implanting an anchor rod, and installing the corbel 12;
S4、在所述混凝土横梁2两侧分别固定所述桁式钢结构加劲纵梁1,完成中间多节段的所述桁式钢结构加劲纵梁1的安装;S4, respectively fix the truss-type steel structure stiffening longitudinal beam 1 on both sides of the concrete beam 2, and complete the installation of the truss-type steel structure stiffening longitudinal beam 1 with multiple sections in the middle;
S5、将两端最后两个所述桁式钢结构加劲纵梁1固定在所述牛腿12上的临时支座上,并与所述混凝土横梁2连接,完成下承式拱桥整体结构;S5, the last two described truss-type steel structure stiffening longitudinal beams 1 at both ends are fixed on the temporary supports on the described corbels 12, and are connected with the described concrete beams 2 to complete the overall structure of the lower-bearing arch bridge;
S6、将所述临时支座更换为永久的所述支座13,整个采用桁式钢结构加劲纵梁加固的下承式拱桥悬吊桥道系施工完成。S6, the temporary support is replaced with the permanent support 13, and the construction of the entire suspension bridge system of the lower-supported arch bridge reinforced by the truss-type steel structure stiffening longitudinal beams is completed.
在本实施例中,所述施工方法中未提及部分,均按现有技术的方式进行,保证施工得到上述下承式拱桥悬吊桥道系即可,所述下承式拱桥悬吊桥道系具有施工简单、高效,以及应用价值高的优点。In this embodiment, the parts not mentioned in the construction method are all carried out in the way of the prior art, and it is sufficient to ensure that the above-mentioned suspension bridge system of the under-supported arch bridge can be obtained during construction. It has the advantages of simple construction, high efficiency and high application value.
上面结合附图对本发明的实施方式作了详细说明,但是本发明不限于上述实施方式,在所述技术领域普通技术人员所具备的知识范围内,还可以在不脱离本发明宗旨的前提下做出各种修改。这些都是不具有创造性的修改,只要在本发明的权利要求范围内都受到专利法的保护。The embodiments of the present invention have been described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above-mentioned embodiments, and within the scope of knowledge possessed by those of ordinary skill in the technical field, it can also be done without departing from the purpose of the present invention. various modifications. These are all non-creative modifications, as long as they are within the scope of the claims of the present invention, they are protected by the patent law.
Claims (10)
- 采用桁式钢结构加劲纵梁加固的下承式拱桥悬吊桥道系,包括拱座(11),设置在所述拱座(11)上的牛腿(12),设置在所述牛腿(12)上的支座(13),吊杆(14),以及桥面板(15),其特征在于:还包括设置在所述支座(13)上的桁式钢结构加劲纵梁(1),以及设置在相邻所述桁式钢结构加劲纵梁(1)之间且两端安装所述吊杆(14)并用于支撑所述桥面板(15)的混凝土横梁(2)。The suspension bridge road system of a down-supported arch bridge reinforced by truss-type steel structure stiffening longitudinal beams includes an arch seat (11), a corbel (12) arranged on the abutment (11), and a corbel (12) arranged on the corbel (11). 12) on the support (13), the suspension rod (14), and the bridge deck (15), characterized in that it further comprises a truss-type steel structure stiffening longitudinal beam (1) arranged on the support (13) , and a concrete beam (2) arranged between the adjacent truss-type steel structure stiffening longitudinal beams (1) and having the suspension rods (14) installed at both ends and used for supporting the bridge deck (15).
- 根据权利要求1所述的采用桁式钢结构加劲纵梁加固的下承式拱桥悬吊桥道系,其特征在于:所述桁式钢结构加劲纵梁(1)包括四根纵向主管(101),设置在同一水平高度的两根所述纵向主管(101)之间的水平支管(102),设置在同一侧的两根所述纵向主管(101)之间的竖向支管(103)、倾斜支管(104),以及设置在四根所述纵向主管(101)端部并用于连接所述混凝土横梁(2)的外包锚固钢板(105)。The undercarriage arch bridge suspension bridge reinforced with truss-type steel structure stiffening longitudinal beams according to claim 1, characterized in that: the truss-type steel structure stiffening longitudinal beams (1) comprise four longitudinal main pipes (101) , a horizontal branch pipe (102) arranged between the two longitudinal main pipes (101) at the same horizontal height, a vertical branch pipe (103) arranged between the two longitudinal main pipes (101) on the same side, inclined Branch pipes (104), and outer anchoring steel plates (105) arranged at the ends of the four longitudinal main pipes (101) and used for connecting the concrete beams (2).
- 根据权利要求2所述的采用桁式钢结构加劲纵梁加固的下承式拱桥悬吊桥道系,其特征在于:所述桁式钢结构加劲纵梁(1)还包括设置在所述外包锚固钢板(105)的远离所述混凝土横梁(2)侧面上并用于连接所述纵向主管(101)的加劲钢板(106)。The under-supported arch bridge suspension bridge system reinforced with truss-type steel structure stiffening longitudinal beams according to claim 2, characterized in that: the truss-type steel structure stiffening longitudinal beams (1) further comprise an anchorage structure provided on the outer shell. A stiffening steel plate (106) on the side of the steel plate (105) remote from the concrete beam (2) and used to connect the longitudinal main pipe (101).
- 根据权利要求3所述的采用桁式钢结构加劲纵梁加固的下承式拱桥悬吊桥道系,其特征在于:所述桁式钢结构加劲纵梁(1)还包括设置在所述外包锚固钢板(105)上的安装孔。The under-supported arch bridge suspension bridge reinforced with truss-type steel structure stiffening longitudinal beams according to claim 3, characterized in that: the truss-type steel structure stiffening longitudinal beams (1) further comprise an anchorage structure provided on the outer shell. Mounting holes in steel plate (105).
- 根据权利要求4所述的采用桁式钢结构加劲纵梁加固的下承式拱桥悬吊桥道系,其特征在于:所述安装孔包括设置在上下两组所述纵向主管(101)之间的植入螺杆孔(107),以及分别设置在上下两组所述纵向主管(101)外侧的两组精轧螺纹钢筋孔(108)。The undercarriage arch bridge suspension bridge reinforced with truss-type steel structure stiffening longitudinal beams according to claim 4, characterized in that: the installation hole comprises a set of upper and lower sets of longitudinal main pipes (101). The screw holes (107) are implanted, and the two groups of finish-rolled threaded steel bars (108) are respectively arranged on the outer sides of the upper and lower groups of the longitudinal main pipes (101).
- 根据权利要求5所述的采用桁式钢结构加劲纵梁加固的下承式拱桥悬吊桥道系,其特征在于:所述混凝土横梁(2)包括上表面两端分别设置所述吊杆(14)、两个竖向侧面分别安装所述外包锚固钢板(105)的混凝土横梁主体(201),设置在所述混凝土横梁主体(201)上并穿过所述精轧螺纹钢筋孔(108)的精轧螺纹钢筋(202),以及设置在所述混凝土横梁主体(201)上并穿过所述植入螺杆孔(107)的植入式螺杆(203)。The under-supported arch bridge suspension bridge reinforced by truss-type steel structure stiffening longitudinal beams according to claim 5, characterized in that: the concrete beam (2) includes the suspension rods (14) respectively provided at both ends of the upper surface ), the concrete beam main body (201) of the outer anchoring steel plate (105) is respectively installed on the two vertical sides, and the concrete beam main body (201) is arranged on the concrete beam main body (201) and passes through the finish-rolled threaded steel bar hole (108). Finished threaded steel bars (202), and an implanted screw (203) arranged on the concrete beam main body (201) and passing through the implanted screw hole (107).
- 根据权利要求6所述的采用桁式钢结构加劲纵梁加固的下承式拱桥悬吊桥道系,其特征在于:所述精轧螺纹钢筋(202)在所述混凝土横梁主体(201)两侧均具有凸出端,所述植入式螺杆(203)一端设置在所述混凝土横梁主体(201)外侧。The under-supported arch bridge suspension bridge reinforced by truss-type steel structure stiffening longitudinal beams according to claim 6, characterized in that: the finish-rolled threaded steel bars (202) are on both sides of the concrete beam main body (201). Each has a protruding end, and one end of the implanted screw (203) is arranged outside the concrete beam main body (201).
- 根据权利要求6所述的采用桁式钢结构加劲纵梁加固的下承式拱桥悬吊桥道系,其特征在于:所述桁式钢结构加劲纵梁(1)还包括设置在所述外包锚固钢板(105)上并用于穿过所述纵向主管(101)的钢板开孔(109),所述混凝土横梁(2)还包括分别设置在所述混凝土横梁主体(201)两个竖向侧面上并用于***所述纵向主管(101)凸出端的主体开槽(204)。The undercarriage arch bridge suspension bridge reinforced with truss-type steel structure stiffening longitudinal beams according to claim 6, characterized in that: the truss-type steel structure stiffening longitudinal beam (1) further comprises an A steel plate opening (109) on the steel plate (105) and used to pass through the longitudinal main pipe (101), the concrete beam (2) further comprises two vertical sides respectively disposed on the concrete beam main body (201) And for inserting the main body slot (204) of the protruding end of the longitudinal main pipe (101).
- 根据权利要求8所述的采用桁式钢结构加劲纵梁加固的下承式拱桥悬吊桥道系,其特征在于:所述外包锚固钢板(105)的两个侧面上均设有所述加劲钢板(106),所述混凝土横梁(2)还包括分别设置在所述混凝土横梁主体(201)两个竖向侧面上并用于***所述加劲钢板(106)且连通所述主体开槽(204)的主体槽道(205)。The undercarriage arch bridge suspension bridge system reinforced with truss-type steel structure stiffening longitudinal beams according to claim 8, characterized in that: the stiffening steel plates are provided on both sides of the outer anchoring steel plate (105) (106), the concrete beam (2) further comprises a slot (204) respectively disposed on the two vertical sides of the concrete beam main body (201) and used for inserting the stiffening steel plate (106) and communicating with the main body main body channel (205).
- 一种如权利要求9所述的采用桁式钢结构加劲纵梁加固的下承式拱桥悬吊桥道系的施工方法,其特征在于依次包括以下步骤:A construction method for the suspension bridge track system of a bottom-supported arch bridge reinforced with truss-type steel structure stiffening longitudinal beams as claimed in claim 9, characterized in that the following steps are included in sequence:S1、焊接所述纵向主管(101)、水平支管(102)、竖向支管(103)、倾斜支管(104)、外包锚固钢板(105)以及加劲钢板(106),得到所述桁式钢结构加劲纵梁(1);S1. Weld the longitudinal main pipe (101), the horizontal branch pipe (102), the vertical branch pipe (103), the inclined branch pipe (104), the outer anchoring steel plate (105) and the stiffening steel plate (106) to obtain the truss steel structure stiffening stringer (1);S2、在所述混凝土横梁主体(201)上预埋精轧螺纹钢筋(202)以及植入式螺杆(203),并在所述混凝土横梁主体(201)侧面上开设主体开槽(204)以及主体槽道(205),得到所述混凝土横梁(2),并分隔固定;S2. Pre-embed the finished-rolled threaded steel bar (202) and the implanted screw (203) on the concrete beam main body (201), and set a main body slot (204) on the side surface of the concrete beam main body (201) and a main body channel (205) to obtain the concrete beam (2), which is separated and fixed;S3、在所述拱座(11)内侧开设孔洞,植入锚杆,安装所述牛腿(12);S3, opening a hole on the inner side of the abutment (11), implanting an anchor rod, and installing the corbel (12);S4、在所述混凝土横梁(2)两侧分别固定所述桁式钢结构加劲纵梁(1),完成中间多节段的所述桁式钢结构加劲纵梁(1)的安装;S4. Fix the truss-type steel structure stiffening longitudinal beam (1) on both sides of the concrete beam (2) respectively, and complete the installation of the truss-type steel structure stiffening longitudinal beam (1) with multiple sections in the middle;S5、将两端最后两个所述桁式钢结构加劲纵梁(1)固定在所述牛腿(12)上的临时支座上,并与所述混凝土横梁(2)连接,完成下承式拱桥整体结构;S5. Fix the last two truss-type steel structure stiffening longitudinal beams (1) at both ends on the temporary supports on the corbels (12), and connect them with the concrete beams (2) to complete the lower bearing The overall structure of the arch bridge;S6、将所述临时支座更换为永久的所述支座(13),整个采用桁式钢结构加劲纵梁加固的下承式拱桥悬吊桥道系施工完成。S6. The temporary support is replaced with the permanent support (13), and the construction of the entire suspension bridge system of the lower-supported arch bridge reinforced by the truss-type steel structure stiffening longitudinal beam is completed.
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CN202110079153.XA CN112627013A (en) | 2021-01-21 | 2021-01-21 | Deck type arch bridge suspension bridge way system reinforced by truss type steel structure stiffening longitudinal beams and construction method thereof |
CN202120159868.1U CN214401391U (en) | 2021-01-21 | 2021-01-21 | Underslung arch bridge suspension bridge system reinforced by truss type steel structure stiffening longitudinal beam |
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CN112627013A (en) * | 2021-01-21 | 2021-04-09 | 福州大学 | Deck type arch bridge suspension bridge way system reinforced by truss type steel structure stiffening longitudinal beams and construction method thereof |
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- 2021-07-09 LU LU502338A patent/LU502338B1/en active IP Right Grant
- 2021-07-09 WO PCT/CN2021/105468 patent/WO2022156157A1/en active Application Filing
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