CN109505226A - Tower girder construction, cable-stayed bridge and tower beam construction method - Google Patents

Tower girder construction, cable-stayed bridge and tower beam construction method Download PDF

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Publication number
CN109505226A
CN109505226A CN201811652586.4A CN201811652586A CN109505226A CN 109505226 A CN109505226 A CN 109505226A CN 201811652586 A CN201811652586 A CN 201811652586A CN 109505226 A CN109505226 A CN 109505226A
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CN
China
Prior art keywords
tower
bracket
supporting
girder
framework
Prior art date
Application number
CN201811652586.4A
Other languages
Chinese (zh)
Inventor
杨胜刚
甘新涛
杨湛
张良
谢永坚
邓海
孟平
张玉涛
蒲益辉
汪伟
邓翔
杨训
汪拉松
刘明华
陈培根
Original Assignee
核工业长沙中南建设工程集团公司
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Application filed by 核工业长沙中南建设工程集团公司 filed Critical 核工业长沙中南建设工程集团公司
Priority to CN201811652586.4A priority Critical patent/CN109505226A/en
Publication of CN109505226A publication Critical patent/CN109505226A/en

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Classifications

    • EFIXED CONSTRUCTIONS
    • E01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01DCONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
    • E01D11/00Suspension or cable-stayed bridges
    • E01D11/04Cable-stayed bridges
    • EFIXED CONSTRUCTIONS
    • E01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01DCONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
    • E01D19/00Structural or constructional details of bridges
    • E01D19/14Towers; Anchors ; Connection of cables to bridge parts; Saddle supports
    • EFIXED CONSTRUCTIONS
    • E01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01DCONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
    • E01D21/00Methods or apparatus specially adapted for erecting or assembling bridges

Abstract

The present invention provides a kind of tower girder construction, cable-stayed bridge and tower beam construction methods, belong to technical field of bridge construction.The tower girder construction includes Sarasota, bracket and bracket.Sarasota includes the first tower body and the second tower body being oppositely arranged;Bracket is set between the first tower body and the second tower body, and one end of bracket is configured to connect with ground, and the other end of bracket, which has, pours framework, pours framework for pouring the crossbeam being connected between the first tower body and the second tower body;Bracket extends through framework, bracket is poured along the width direction for pouring framework, and the edge boundary line of the vertical plane of bracket along the vertical direction is located at the periphery in the edge boundary line of the vertical plane of bracket along the vertical direction.Since bracket expands the bearing area for being used to support girder and pouring for bracket, even if also can satisfy the bearing area for pouring needs for girder in the occupied area for reducing bracket.

Description

Tower girder construction, cable-stayed bridge and tower beam construction method

Technical field

The present invention relates to technical field of bridge construction, apply in particular to a kind of tower girder construction, cable-stayed bridge and tower beam Work method.

Background technique

As the construction technology of bridge construction is continuously improved, cable-stayed bridge is because can satisfy the big construction demand quilt of girder span It is widely used.

Conventionally, as Sarasota is typically situated at the center in river, the bracket for serving Sarasota construction is also needed It to be built in river.Usual tower seat, as interim building enclosure, is isolated water and enters construction tower seat using cofferdam.In process of construction In, bracket is constructed after water segregation, and since the occupied area of bracket is larger, and the place of bracket land occupation needs to carry out at ground Reason causes bracket construction difficult.

Summary of the invention

The embodiment of the invention provides a kind of tower girder constructions, it is intended to reduce bracket occupied area.

In a first aspect, the embodiment of the invention provides a kind of tower girder construction, including Sarasota, bracket and bracket.

The Sarasota includes the first tower body and the second tower body being oppositely arranged;The bracket be set to first tower body and Between second tower body, one end of the bracket is configured to connect with ground, and the other end of the bracket, which has, pours frame Body, the framework that pours is for pouring the crossbeam being connected between first tower body and second tower body;The bracket passes through Be through at it is described pour framework, the width direction that the bracket pours framework described in extends, the bracket hanging down along the vertical direction The edge boundary line on straight perspective plane is located at the periphery in the edge boundary line of the vertical plane of the bracket along the vertical direction.

In embodiments of the present invention, it is provided with bracket between the first tower body and the second tower body, since bracket is far from ground One end have pour framework, when in use, to this pour casting concrete in framework be capable of forming for connect the first tower body With the crossbeam of the second tower body, crossbeam can provide support for subsequent girder pouring construction.Since main girder construction needs to use machine Tool equipment, bracket need to provide place for mechanical equipment, i.e. the effect of bracket, which is to pour for main beam, provides support force and development The bearing area of main girder construction.Bracket extends along the width direction for pouring framework through framework, bracket is poured, expands and be used for The edge boundary line of the bearing area that support girder pours, the vertical plane of bracket along the vertical direction is located at bracket along the vertical direction Vertical plane edge boundary line periphery.Even if reducing the occupied area of bracket, propping up for bracket offer also can use Support area satisfaction is poured for girder.

In a kind of specific embodiment, the bracket include the first supporting element and the second supporting element, described first Support member pours framework through described, and the length direction of first supporting element is consistent with the width direction for pouring framework, Second supporting element is obliquely installed and one end of second supporting element and first supporting element pour framework far from described in One end connection, the other end of second supporting element connect with the bracket.

First supporting element is through pouring framework, and the first supporting element and concrete form entirety after concreting, and second Supporting element is connect with the first supporting element far from the one end for pouring framework, and the second supporting element can provide support for the first supporting element, The stress of first supporting element is transmitted on bracket, then is transmitted on ground by bracket, the load-bearing energy of the first supporting element is improved Power.

It further include supporting member in a kind of specific embodiment, the supporting member includes third supporting element and Four supporting elements, the third supporting element pours the width direction of framework through the Sarasota described in and extends outwardly, described 4th supporting element is obliquely installed in the third supporting element close to the side of ground, and the both ends of the 4th supporting element respectively with The third supporting element is connected with the Sarasota.

The effect of supporting member is also to provide support for pouring for girder.On the one hand, third supporting element can be girder Pour offer support, it is ensured that pouring construction safety;On the other hand, in the support of the first supporting element, third supporting element and crossbeam Under effect, it can be poured for girder and bigger bearing area is provided.

In a kind of specific embodiment, the upper surface of the third supporting element and the bracket is provided with distribution beam, The length direction of the distribution beam is vertical with the length direction of the third supporting element.

Overlying burden can be allocated and be transmitted on third supporting element again as a kind of force transferring structure by distribution beam Tower body is transferred to by third supporting element.

In a kind of specific embodiment, further includes girder and pour and pour the intracorporal crossbeam of frame, the master in described Beam is poured in the upper surface of the crossbeam and the distribution beam.

In the construction process, the upper surface of crossbeam can directly serve as bed die, and after concreting, girder can be with cross Beam is directly linked together, and crossbeam may be incorporated for support girder before and after pouring.

It further include connection component in a kind of specific embodiment, the connection component includes the first connector and the Two connectors, the outer wall of first tower body are embedded with the first built-in fitting, and it is pre-buried that the outer wall of second tower body is embedded with second Part is embedded with third built-in fitting and the 4th built-in fitting, the third built-in fitting and the described 4th along the length direction of the girder Built-in fitting is oppositely arranged, and first built-in fitting and the third built-in fitting are connected by described first for drawing the girder Fitting connection, second built-in fitting and the 4th built-in fitting are connected by second connector for drawing the girder It connects.

By the first connector and the second connector Sarasota is connect with girder, Sarasota can draw girder.It prevents from leading Beam deformation.The primary load of girder is vehicle, pedestrian etc. current in the self weight and girder of girder.Girder is in these load actions Under, it is easy to produce downward bending deformation, Sarasota draws girder by the first connector and the second connector, it is possible to reduce girder Bending deformation.

In a kind of specific embodiment, first tower body and second tower body are along the length for pouring framework Degree direction is connected between the opposite cavity wall of each cavity along the width side for pouring framework through cavity is offered To the pull rod of setting.

Pull rod can extend when by axial force along its axis direction, and pull rod can gradually be stretched according to its stress condition It is long, keep the globality of the first tower body and the second tower body.

Second aspect, the embodiment of the present invention provide a kind of cable-stayed bridge, including tower girder construction and pier body.Wherein, the pier body It is connect with the bottom of the Sarasota, and the pier body is embedded in ground far from one end of the Sarasota.

Pier body is used to support upper column girder construction, bears the power that upper column girder construction hands down, then passed load by pier body It is delivered to ground.

In a kind of specific embodiment, the pier body includes the first column, the second column, tower seat and pile foundation.

Wherein, first column is connect with the bottom of first tower body;Second column and second tower body Bottom connection;First column and second column are fixed on the tower seat;One end of the pile foundation is embedded in ground The other end of the interior and described pile foundation is connect with the tower seat.

The top of pile foundation is connect with tower seat, the whole load of tower seat supports superstructure.First column is supported on the first tower Between body and tower seat, the second column is supported between the second tower body and tower seat, and the height of the first column needs setting according to girder Meter height adjusts.

The third aspect, the embodiment of the invention also provides a kind of tower beam construction methods, include the following steps:

Ground bracket being mounted between the region for first tower body that is used to construct and the region for second tower body that is used to construct On, it is formed in bracket far from one end of the ground and pours framework for what crossbeam poured;

The pre-buried bracket when the height of the first tower body and the second tower body reaches preset height, the bracket are poured through described Framework is built, the width direction that the bracket pours framework described in extends, the vertical plane of the bracket along the vertical direction Edge boundary line is located at the periphery in the edge boundary line of the vertical plane of the bracket along the vertical direction.

Detailed description of the invention

It, below will be to use required in embodiment in order to illustrate more clearly of the technical solution of embodiment of the present invention Attached drawing be briefly described, it should be understood that the following drawings illustrates only certain embodiments of the present invention, therefore is not to be seen as It is the restriction to range, it for those of ordinary skill in the art, without creative efforts, can be with root Other relevant attached drawings are obtained according to these attached drawings.

Fig. 1 is the structural schematic diagram of tower girder construction provided in an embodiment of the present invention;

Fig. 2 is the structural schematic diagram of tower girder construction provided in an embodiment of the present invention;

Fig. 3 is the structural schematic diagram of tower girder construction provided in an embodiment of the present invention;

Fig. 4 is the structural schematic diagram of pier body provided in an embodiment of the present invention;

Fig. 5 is the structural schematic diagram of pier body provided in an embodiment of the present invention;

Fig. 6 is that the embodiment of the present invention provides the structural schematic diagram of lateral structure.

Icon: 100- tower girder construction;110- Sarasota;The first tower body of 111-;The second tower body of 113-;115- cavity;1151- is drawn Bar;120- bracket;121- steel pipe column;123- pours framework;125- transverse connection;130- bracket;The first supporting element of 131-; The second supporting element of 133-;140- crossbeam;150- girder;160- supporting member;161- third supporting element;The 4th supporting element of 163-; 165- distribution beam;170- connection component;The first connector of 171-;200- pier body;The first column of 210-;The second column of 220-; 230- tower seat;240- pile foundation;241- steel-pipe pile;243- lateral structure;2431- flexible connecting member;2433- rigid connector; 24331- connecting rod;24333- garter spring.

Specific embodiment

To keep the purposes, technical schemes and advantages of embodiment of the present invention clearer, implement below in conjunction with the present invention The technical solution in embodiment of the present invention is clearly and completely described in attached drawing in mode, it is clear that described reality The mode of applying is some embodiments of the invention, rather than whole embodiments.Based on the embodiment in the present invention, ability Domain those of ordinary skill every other embodiment obtained without creative efforts, belongs to the present invention The range of protection.

Therefore, requirement is not intended to limit to the detailed description of the embodiments of the present invention provided in the accompanying drawings below to protect The scope of the present invention of shield, but it is merely representative of selected embodiment of the invention.Based on the embodiment in the present invention, ability Domain those of ordinary skill every other embodiment obtained without creative efforts, belongs to the present invention The range of protection.

It should also be noted that similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi It is defined in a attached drawing, does not then need that it is further defined and explained in subsequent attached drawing.

In addition, term " first ", " second " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or Implicitly include one or more of the features.In the description of the present invention, the meaning of " plurality " is two or more, Unless otherwise specifically defined.

In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " fixation " etc. Term shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral;It can be direct phase Even, can also indirectly connected through an intermediary, the interaction that can be connection or two elements inside two elements is closed System;It can be electric connection, be also possible to be electrically connected.It for the ordinary skill in the art, can be according to specific Situation understands the concrete meaning of above-mentioned term in the present invention.

In the present invention unless specifically defined or limited otherwise, fisrt feature second feature "upper" or "lower" It may include that the first and second features directly contact, also may include that the first and second features are not direct contacts but pass through it Between other characterisation contact.Moreover, fisrt feature includes the first spy above the second feature " above ", " above " and " above " Sign is right above second feature and oblique upper, or is merely representative of first feature horizontal height higher than second feature.Fisrt feature exists Second feature " under ", " lower section " and " following " include that fisrt feature is directly below and diagonally below the second feature, or is merely representative of First feature horizontal height is less than second feature.

Embodiment

Cable-stayed bridge is a kind of bridge structure being directly anchored at girder with many suspension cables on bridge tower.In the related art, Cable-stayed bridge sets up into bracket by using steel-pipe pile, forms girder using the support casting concrete of bracket, then uses Hanging Basket Construction, which continues casting concrete, extends girder constantly to two sides.And the construction of Hanging Basket needs to occupy certain area, needs head The girder that section pours is capable of providing the bearing area for cradle construction.And in the related art, bracket is used to support girder and applies Work, this just needs bracket to provide sufficiently large bearing area.

And cable-stayed bridge is typically situated in river, setting support needs to carry out dredging, smooth and ground to bottom of river channel Processing, opposite land setting support are more difficult.

For this purpose, inventor provides a kind of tower girder construction, it is intended to reduce the occupied area that bracket is set up, reduce what bracket was built Difficulty.

The embodiment of the present invention provides a kind of tower girder construction 100 referring to FIG. 1-2, comprising Sarasota 110, bracket 120, support Frame 130.

Important component of the Sarasota 110 as bridge construction, is mainly made of armored concrete.Wherein, Sarasota 110 Including the first tower body 111 and the second tower body 113 being oppositely arranged.That is the first tower body 111 and the second tower body 113 are arranged in parallel.The Spacing between one tower body 111 and the second tower body 113 is usually in 20~40m.

First tower body 111 and the second tower body 113 can use a variety of construction technologies, and current main construction techniques are creeping formwork Construction technology and form construction technology.

For ease of understanding, two kinds of construction technologies are briefly described.Wherein, creeping formwork is the abbreviation of hydraulic climbing formwork, main to wrap It includes template, climbing frame (or track) and climbing device and does not need crane during construction because itself has climbing ability The handling of tool can reduce the handling workload of Transport Machinery in construction, can also accelerate construction effect.Sliding formwork is also referred to as sliding die Plate, be with the pulling equipments such as jack, motor hoist for its promoted power, under the traction of pulling equipment band moving template (or Sliding sash) it is slowly slided and the construction method of molding cast-in-place concrete structure along concrete (or template) surface.

In a kind of specific embodiment, the first tower body 111 and the second tower body can be built using climbing formwork for construction technique 113.During climbing formwork for construction, the height of the first tower body 111 and the second tower body 113 slowly rises, when the first tower body 111 and When two tower bodies 113 rise to predeterminated position, embedded bar circle, i.e. the two of reinforcing bar circle in the first tower body 111 and the second tower body 113 End is embedded in respectively inside the first tower body 111 and the second tower body 113, and the first tower body 111 and the second tower body 113 pass through reinforcing bar linkage It connects.

Important channel of the cable-stayed bridge as connection two sides traffic, usually local landmark object.Current oblique pull Bridge, which is built, also to be needed to consider its aesthetics while pursuing safety of structure.Therefore, cable-stayed bridge is adopted in order to which the beauty of moulding It is designed with abnormal shape.In a kind of specific embodiment, the first tower body 111 and the second tower body 113 are along the length for pouring framework 123 Degree direction is connected between the opposite cavity wall of each cavity 115 through cavity 115 is offered along the width for pouring framework 123 The pull rod 1151 that direction is provided with.Since crossbeam 140 has the function of connecting the first tower body 111 and the second tower body 113, crossbeam 140 can be vertical with the first tower body 111 and the second tower body 113.The length of crossbeam 140 and the first tower body 111 and the second tower body 113 Between spacing it is related, generally in 20~40m, width is in 2m or so.Since crossbeam 140 is formed and is poured in framework 123, pour The rule of framework 123 is essentially identical with the specification of crossbeam 140, that is, pours the length direction of framework 123 and the length side of crossbeam 140 To consistent, similarly, the width direction for pouring framework 123 is consistent with the width direction of crossbeam 140.

Cavity is offered since the first tower body 111 and the second tower body 113 run through along the length direction for pouring framework 123 115.By taking the first tower body 111 as an example, because the first tower body 111 offers cavity 115, the first tower body 111 is considered as by two towers Body branch connects at both ends, please refers to 2, and the first tower body 111 divides for positioned at the tower body branch in 115 left side of cavity (hereinafter referred to as the One tower body branch) and tower body branch (hereinafter referred to as the second tower body branch) positioned at right side, when the first tower body branch or the second tower Body branch is when unstability is fallen in the construction process.Since pull rod 1151 can extend when by axial force along its axis direction, Pull rod 1151 can gradually be extended according to its stress condition, keep connecting in elongation process the first tower body branch or the second tower body branch It connects, pull rod 1151 can be that 111 branch of the first tower body or 113 branch of the second tower body in instability status mention arch pulling force, limit Its further unstability, provides overall stability.

The effect of bracket 120 is to provide support for pouring for crossbeam 140.Bracket 120 is set to the first tower body 111 and Between two tower bodies 113, one end of bracket 120 is connect with ground, and the other end of bracket 120, which has, pours framework 123, and reinforcing bar circle is set It is placed in and pours in framework 123, support can be provided for reinforcing bar circle by pouring framework 123.Pouring framework 123 can be also used for the company of pouring The crossbeam 140 being connected between the first tower body 111 and the second tower body 113.

Crossbeam 140 is mainly poured by armored concrete and is formed, that is, reinforcing bar circle and concrete.What it is due to concrete is It is mixed by sand, concrete grey, water according to certain proportion, severe is larger, in addition the weight of reinforcing bar circle, needs bracket 120 Support is provided for casting process.In addition, concrete has certain mobility before initial set, needs to pour framework 123 and serve as mould The effect of tool, so that concrete formation.

Since crossbeam 140 is reinforced concrete structure, specifically a kind of prestressed reinforced concrete structure, as master Supporting member is wanted, load-bearing capacity is preferable.Support is provided in order to which crossbeam 140 more stably pours for girder 150, pours framework 123 at least there are two.In specific setting, there are two be arranged in parallel and specification is identical one end tool of the bracket 120 far from ground Framework 123 is poured, is flushed pouring the top for forming two crossbeams 140 and crossbeam 140 in framework 123 after casting concrete.

Bracket 120 includes pouring framework 123 and the composition of multiple steel pipe columns 121, and one end of steel pipe column 121 is embedded in ground Interior, the other end of steel pipe column 121 is connect with framework 123 is poured.In order to improve the overall stability between steel-pipe pile 241, steel pipe Transverse connection 125 is set between stake 241, for connecting adjacent steel pipe column 121.Transverse connection 125 can be beret slice Or steel pipe, transverse connection 125 can be connect by the way of welding with steel pipe column 121.

The groove being enclosed for casting concrete can be welded by steel plate by pouring framework 123, can also be by steel pipe welding It connects to form frame, needs that mold is layed in the inside of frame, mold shape using mold before the casting concrete into the frame At for casting concrete groove.Wherein, mold can be the lumps of wood, steel form etc..Specifically, when using the lumps of wood, lumps of wood rule 10 × 10cm can be then used, lumps of wood center spacing is not more than 25cm, and 1.5cm bamboo slab rubber of mating formation at the top of the lumps of wood forms bed die, just In later period demoulding.

The effect of bracket 130, which is to pour for main beam 150, provides support.In specific setting, bracket 130 is through pouring Framework 123, bracket 130 extend along the width direction for pouring framework 123.So pouring in framework 123 after formation crossbeam 140, Bracket 130 and concrete form entirety, between the two stable connection, and globality is preferable, and bracket 130 and crossbeam 140 can be common It is poured for girder 150 and support is provided, in this way after first section girder 150 pours, the surface of girder 150 is just capable of providing for Hanging Basket The bearing area of construction.The edge boundary line of the vertical plane of bracket 130 along the vertical direction is located at bracket 120 along the vertical direction The periphery in the edge boundary line of vertical plane.The main function of bracket 120 is to provide support for pouring for crossbeam 140, due to Bracket 130 and crossbeam 140 can pour for girder 150 provides support, can reduce the bearing area of bracket 120, that is, prop up The occupied area of frame 120.

In specific setting, bracket 130 includes the first supporting element 131 and the second supporting element 133, and the first supporting element 131 passes through It is through at and pours framework 123, the length direction of the first supporting element 131 is consistent with the width direction for pouring framework 123, the second supporting element 133 are obliquely installed and one end of the second supporting element 133 is connect with the first supporting element 131 far from the one end for pouring framework 123, and second The other end of supporting element 133 is connect with bracket 120.First supporting element 131 is through pouring framework 123, the after concreting One supporting element 131 forms entirety with concrete, and the second supporting element 133 and the first supporting element 131 are far from the one end for pouring framework 123 Connection, the second supporting element 133 can provide support for the first supporting element 131, the stress of the first supporting element 131 are transmitted to bracket It on 120, then is transmitted on ground by bracket 120, improves the load-bearing capacity of the first supporting element 131.

In specific setting, the first supporting element 131 and the second supporting element 133 are steel pipe, the second supporting element 133 and first It is connected between supporting element 131 with welding manner, is also connected between the second supporting element 133 and bracket 120 with welding manner.

In other embodiments, the first supporting element 131 and the second supporting element 133 or angle steel, U-shaped steel.

In a kind of specific embodiment, which further includes supporting member 160, the supporting member 160 packet Include third supporting element 161 and the 4th supporting element 163, third supporting element 161 is along pouring the width direction of framework 123 through Sarasota 110 and extend outwardly, the 4th supporting element 163 is obliquely installed in third supporting element 161 close to the side of ground, and the 4th supporting element 163 both ends are connect with third supporting element 161 and Sarasota 110 respectively.The effect of supporting member 160 is also pouring for girder 150 Offer support is provided.On the one hand, third supporting element 161 can provide support for pouring for girder 150, it is ensured that pouring construction safety; On the other hand, it under the supporting role of the first supporting element 131, third supporting element 161 and crossbeam 140, can be poured for girder 150 It builds and bigger bearing area is provided.

In a kind of specific embodiment, the upper surface of third supporting element 161 and the first supporting element 131 is provided with distribution The length direction of beam 165, distribution beam 165 is vertical with the length direction of third supporting element 161.In specific setting, the first support Part 131 is flushed with the upper surface of third supporting element 161.It, can be in third supporting element 161 and first before distribution beam 165 is mated formation 165 position markers of distribution beam can be carried out using slate pencil on supporting element 131, mated formation rapidly convenient for distribution beam 165.Distribution beam 165 As a kind of force transferring structure, overlying burden can be allocated and be transmitted on third supporting element 161, then supported by third Part 161 is transferred to tower body.When 165 partial failure of distribution beam, shearing, moment of flexure, torque can be redistributed.Distribution beam 165, the first supporting element 131, third supporting element 161 are staggered, and overall stability is more preferable.Load assignment can be made more equal It is even.

In specific setting, third supporting element 161 can be steel pipe, angle steel or U-shaped steel, and the 4th supporting element 163 can also It can be steel pipe, angle steel or U-shaped steel to be third supporting element 161.One end of 4th supporting element 163 can be embedded in tower body Interior, the other end and third supporting element 161 of the 4th supporting element 163 weld.

In specific setting, girder 150 is poured in the upper surface of crossbeam 140 and distribution beam 165.In the construction process, horizontal The upper surface of beam 140 can directly serve as bed die, and after concreting, girder 150 can be connected directly between one with crossbeam 140 It rises, the upper surface of distribution beam 165 could casting concrete after needing to be laid with mold.In specific setting, distribution beam 165 is used I32 fashioned iron, is arranged the lumps of wood at the top of distribution beam 165 and bamboo slab rubber forms bed die, can remove distribution beam after the molding of girder 150 165。

It is completed in the concreting of girder 150, moisture-keeping maintaining of being sprinkled water as early as possible after concrete initial set.Girder 150 is big The exposed concrete of area, should reinforce initial moisture-keeping maintaining, to template must keep wet during maintenance.

Sprinkling maintenance must not be less than 7d, when temperature is lower than 5 DEG C, should take insulated curing measure, must not be to concrete table Face watering.Concrete is conserved using sprinkling curing agent.

First section girder 150 is formed after the completion of concrete curing, to facilitate the understanding of the present invention embodiment, below with regard to Hanging Basket Cantilever construction technology is introduced.

Hanging Basket cantilever construction (abbreviation cradle construction), uses dragging suspension basket as main construction equipment, is with Sarasota 110 Center symmetrically utilizes Hanging Basket paragraph by paragraph pouring concrete to two sides, after concrete reaches desired strength, pre-stress construction completion, Suspension cable completes movable hanging basket again after stretching construction, carries out next section of construction.

In the present embodiment, Hanging Basket can be anchored on the girder 150 constructed, next segment master is carried out on Hanging Basket The installation of template, reinforcing bar, prestress pipe that beam 150 pours, filling concrete and prestressed stretch-draw, the operations such as mud jacking.It completes After the circulation of one segment, Hanging Basket can move forward and fix, and carry out the outstanding filling of next segment, and so circulation is until girder 150 prolongs Extend to two sides.

And Hanging Basket cantilever construction needs the construction site of certain area just to can be carried out, that is, the rear anchor branch needed for Hanging Basket It supports position and place is provided.Therefore first section girder 150 can not use Hanging Basket cantilever construction, first section girder 150 construct after need for Hanging Basket cantilever construction provides necessary site area.

Hanging Basket cantilever construction technology can be used after first section girder 150 pours.At this time, it may be necessary to be drawn by pulling equipment Girder 150 guarantees 150 construction safety of girder.Referring to Fig. 3, the tower girder construction 100 further includes connection group in specific setting Part 170, connection component 170 include the first connector 171 and the second connector, and it is pre- that the outer wall of the first tower body 111 is embedded with first The outer wall of embedded part, the second tower body 113 is embedded with the second built-in fitting, along the length direction of girder 150 be embedded with third built-in fitting and 4th built-in fitting, third built-in fitting are oppositely arranged with the 4th built-in fitting, and the first built-in fitting passes through with third built-in fitting for drawing First connector 171 of girder 150 connects, and the second built-in fitting and the 4th built-in fitting are connected by second for drawing girder 150 Fitting connection.

By the first connector 171 and the second connector Sarasota 110 is connect with girder 150, Sarasota 110 can be drawn Girder 150.Prevent girder 150 from deforming.The primary load of girder 150 is vehicle current in the self weight and girder 150 of girder 150 , pedestrian etc..Girder 150 is easy to produce downward bending deformation under these load actions, and Sarasota 110 passes through the first connection Part 171 and the second connector draw girder 150, it is possible to reduce the bending deformation of girder 150.

In specific setting, the first built-in fitting and the second built-in fitting can be the anchorage element for being reserved in Sarasota 110, and first Connector 171 and the second connector are suspension cable, and third built-in fitting and the 4th built-in fitting by cable guide pipe and can be reserved in girder Anchorage element component composition inside 150.One end of suspension cable is fixed in the anchorage element of Sarasota 110, suspension cable it is another End is connect by cable guide pipe with the anchorage element inside girder 150.

The embodiment of the present invention separately provides a kind of cable-stayed bridge, including tower girder construction 100 and pier body 200, please refers to Fig. 4-5.

Wherein, pier body 200 is connect with the bottom of Sarasota 110, and pier body 200 is embedded in ground far from one end of Sarasota 110 It is interior.

Pier body 200 is used to support upper column girder construction 100, bears the power that upper column girder construction 100 hands down, then by pier body 200 transfer the load to ground.

In specific setting, pier body 200 includes the first column 210, the second column 220, tower seat 230 and pile foundation 240.

First column 210 is connect with the bottom of the first tower body 111;The bottom of second column 220 and the second tower body 113 connects It connects;First column 210 and the second column 220 are fixed on tower seat 230;One end of pile foundation 240 is embedded in ground and pile foundation 240 The other end is connect with tower seat 230.

Wherein, pile foundation 240 be used as a kind of deep foundation, be embedded to soil layer in certain depth, the bottom of pile foundation 240 be preferably able into Enter solid soil layer or is anchored in rock stratum.The top of pile foundation 240 is connect with tower seat 230, and tower seat 230 supports superstructure Whole load.First column 210 is supported between the first tower body 111 and tower seat 230, and the second column 220 is supported on the second tower body Between 113 and tower seat 230, the height of the first column 210 needs to be adjusted according to the design height of girder 150.

In order to improve the stability of pile foundation 240, referring to Fig. 6, in specific setting, pile foundation 240 include steel-pipe pile 241, Lateral structure 243.Wherein, lateral structure 243 includes flexible connecting member 2431 and rigid connector 2433 and flexible connecting member 2431 and the both ends of rigid connector 2433 be connected to adjacent steel-pipe pile 241.Flexible connecting member 2431 and rigid connector 2433 can provide comprehensive protection to steel-pipe pile 241, and when steel-pipe pile 241 is mobile, rigid connector 2433 can apply it Add pulling force, limits its further movement, when the movement of steel-pipe pile 241 is more than certain limit, rigid connector 2433 occurs Plastic deformation is destroyed and is broken, and flexible connecting member 2431 continues to pulling force to it at this time, limits it and continues to move to.Specifically, Rigid connector 2433 includes garter spring 24333 and connecting rod 24331, and the both ends of connecting rod 24331 are respectively connected with garter spring 24333, Garter spring 24333 is sheathed on steel-pipe pile 241, wherein flexible connecting member 2431 is set around connecting rod 24331, and flexible connecting member 2431 both ends are connect with garter spring 24333.Specifically, flexible connecting member 2431 can be cable wire.

The embodiment of the present invention also provides a kind of tower beam construction method, includes the following steps:

Bracket 120 is mounted on the region for first tower body 111 that is used to construct and second tower body 113 that is used to construct region it Between ground on, be formed in bracket 120 far from one end of the ground and pour framework 123 for what crossbeam 140 poured.

The pre-buried bracket 130 when the height of the first tower body 111 and the second tower body 113 reaches preset height, the bracket 130 Framework 123 is poured through described, the bracket 130 extends along the width direction for pouring framework 123, the bracket 130 The edge boundary line of vertical plane along the vertical direction is located at the edge circle of the vertical plane of the bracket 120 along the vertical direction The periphery of line.

Using the supporting role of bracket 130, it is laid with casting concrete and forms girder 150.

Girder 150 is set to extend to two sides along the length direction casting concrete of girder 150 paragraph by paragraph.

The foregoing is merely the preferred embodiment of the present invention, are not intended to restrict the invention, for this field For technical staff, the invention may be variously modified and varied.All within the spirits and principles of the present invention, made any Modification, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.

Claims (10)

1. a kind of tower girder construction, which is characterized in that including
Sarasota, the Sarasota include the first tower body and the second tower body being oppositely arranged;
Bracket, the bracket are set between first tower body and second tower body, and one end of the bracket is configured to It is connect with ground, the other end of the bracket, which has, pours framework, and the framework that pours is used to pour to be connected to first tower Crossbeam between body and second tower body;And
Bracket, the bracket pour framework through described, and the width direction that the bracket pours framework described in extends, described The edge boundary line of the vertical plane of bracket along the vertical direction is located at the edge of the vertical plane of the bracket along the vertical direction The periphery in boundary line.
2. tower girder construction according to claim 1, which is characterized in that the bracket includes the first supporting element and the second support Part, first supporting element pour framework through described, the length direction of first supporting element and the framework that pours Width direction is consistent, and second supporting element is obliquely installed and one end of second supporting element and first supporting element are separate One end connection for pouring framework, the other end of second supporting element are connect with the bracket.
3. tower girder construction according to claim 1, which is characterized in that further include supporting member, the supporting member includes Third supporting element and the 4th supporting element, the third supporting element pour the width direction of framework through the Sarasota simultaneously described in Extend outwardly, the 4th supporting element is obliquely installed in the third supporting element close to the side of ground, and the described 4th supports The both ends of part are connect with the third supporting element and the Sarasota respectively.
4. tower girder construction according to claim 3, which is characterized in that the upper surface of the third supporting element and the bracket It is provided with distribution beam, the length direction of the distribution beam is vertical with the length direction of the third supporting element.
5. tower girder construction according to claim 4, which is characterized in that further include that girder and pouring pours in framework in described Crossbeam, the girder pours in the upper surface of the crossbeam and the distribution beam.
6. tower girder construction according to claim 5, which is characterized in that further include connection component, the connection component includes First connector and the second connector, the outer wall of first tower body are embedded with the first built-in fitting, the outer wall of second tower body It is embedded with the second built-in fitting, is embedded with third built-in fitting and the 4th built-in fitting along the length direction of the girder, the third is pre- Embedded part is oppositely arranged with the 4th built-in fitting, and first built-in fitting and the third built-in fitting pass through for drawing the master First connector of beam connects, and second built-in fitting and the 4th built-in fitting pass through the institute for drawing the girder State the connection of the second connector.
7. tower girder construction according to claim 1, which is characterized in that first tower body and second tower body are along institute The length direction for pouring framework is stated through cavity is offered, is connected between the opposite cavity wall of each cavity and is poured along described Build the pull rod of the width direction setting of framework.
8. a kind of cable-stayed bridge, which is characterized in that including
The described in any item tower girder constructions of claim 1-7;And
Pier body, the pier body are connect with the bottom of the Sarasota, and the pier body is embedded in ground far from one end of the Sarasota It is interior.
9. cable-stayed bridge according to claim 8, which is characterized in that the pier body includes
First column, first column are connect with the bottom of first tower body;
Second column, second column are connect with the bottom of second tower body;
Tower seat, first column and second column are fixed on the tower seat;And
Pile foundation, one end of the pile foundation is embedded in ground and the other end of the pile foundation is connect with the tower seat.
10. a kind of tower beam construction method, which comprises the steps of:
Ground bracket being mounted between the region for first tower body that is used to construct and the region for second tower body that is used to construct, Bracket is formed with far from one end of the ground and pours framework for what crossbeam poured;
The pre-buried bracket when the height of the first tower body and the second tower body reaches preset height, the bracket pour frame through described Body, the width direction that the bracket pours framework described in extend, the edge of the vertical plane of the bracket along the vertical direction Boundary line is located at the periphery in the edge boundary line of the vertical plane of the bracket along the vertical direction.
CN201811652586.4A 2018-12-29 2018-12-29 Tower girder construction, cable-stayed bridge and tower beam construction method CN109505226A (en)

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Publication number Priority date Publication date Assignee Title
JPH11181724A (en) * 1997-12-22 1999-07-06 Maeda Corp Method for constructing horizontal beam of main tower made of concrete
CN105155414A (en) * 2015-09-24 2015-12-16 中铁四局集团第二工程有限公司 Floor-type slant-legged steel truss bracket of lower transverse beam of large-span cable tower
CN105839536A (en) * 2016-04-01 2016-08-10 中铁大桥局集团第五工程有限公司 Construction method of cable-stayed bridge pylon
CN205857032U (en) * 2016-05-28 2017-01-04 中交一公局第三工程有限公司 The toughened internal stress Construction Support device that a kind of floor stand combines with shelf bracket
CN208167540U (en) * 2018-02-14 2018-11-30 北京城建道桥建设集团有限公司 Cable stayed Bridge Main Tower and suspension cable synchronous construction system
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JPH11181724A (en) * 1997-12-22 1999-07-06 Maeda Corp Method for constructing horizontal beam of main tower made of concrete
CN105155414A (en) * 2015-09-24 2015-12-16 中铁四局集团第二工程有限公司 Floor-type slant-legged steel truss bracket of lower transverse beam of large-span cable tower
CN105839536A (en) * 2016-04-01 2016-08-10 中铁大桥局集团第五工程有限公司 Construction method of cable-stayed bridge pylon
CN205857032U (en) * 2016-05-28 2017-01-04 中交一公局第三工程有限公司 The toughened internal stress Construction Support device that a kind of floor stand combines with shelf bracket
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CN108978471A (en) * 2018-09-28 2018-12-11 重庆交通大学 A kind of support device and its installation method increasing cable-stayed bridge abnormity Sarasota rigidity

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