CN106400688A - Main tower and construction method thereof - Google Patents
Main tower and construction method thereof Download PDFInfo
- Publication number
- CN106400688A CN106400688A CN201610793854.9A CN201610793854A CN106400688A CN 106400688 A CN106400688 A CN 106400688A CN 201610793854 A CN201610793854 A CN 201610793854A CN 106400688 A CN106400688 A CN 106400688A
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- CN
- China
- Prior art keywords
- king
- tower
- post strut
- post
- cross beam
- Prior art date
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
-
- 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
-
- 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
- E01D19/14—Towers; Anchors ; Connection of cables to bridge parts; Saddle supports
Abstract
The invention relates to the technical field of main tower buildings, particularly to a main tower. The main tower comprises an upper tower column, a middle cross beam and a lower tower pillar, wherein the upper tower column, the middle cross beam and the lower tower pillar are sequentially connected to form a herringbone from top to bottom; and lightening holes are formed in the upper tower pillar. According to the invention, the main tower provided by the invention is applied to a cable-stayed bridge and is mainly used for anchoring inhaul cables; the upper tower column, the middle cross beam and the lower tower pillar of the main tower are sequentially connected to form a herringbone from top to bottom, and the lightening holes are formed in the upper tower pillar; firstly, through the herringbone main tower, acting force of integral gravity of the tower is dispersed on the two sides of the main tower and is supported by the two sides of the bottom of the main tower, so that the bending combined force effect of the main tower is better; secondly, the lightening holes are formed in the upper tower pillar, so that the self weight is decreased, and the construction cost of the main tower is reduced; and from the above, the bending combined force effect of the main tower is good, the structure self weight is small, and the construction cost is low.
Description
Technical field
The present invention relates to king-tower technical field of buildings, especially relate to a kind of king-tower and its construction method.
Background technology
King-tower refers to suspension bridge or the turriform structure of oblique pull bridge bearing main rope.The height of Sarasota generally and bridge main across
Relevant, the ratio generally 3.1～6.3 of the maximum span of girder and king-tower height, average out to 5.0 about.King-tower is divided into cable-stayed bridge
With two kinds of suspension bridge.The king-tower of cable-stayed bridge is used for anchoring drag-line, and the king-tower of suspension bridge is used for undertaking main push-towing rope, and two kinds of king-towers are all bent
Compound action.
King-tower structure has polytype, mainly according to factors such as the arrangement requirement of drag-line, bridge deck width and girder spans
From.At present, conventional king-tower form has been longitudinally arranged single-column shape and A shape along bridge, has single-column shape, twin columns along bridge lateral arrangement
Shape, gate-type, battered leg gate-type etc..
But, existing king-tower form construction cost is higher, dead load is larger, poor by press-bending compound action power effect.
Content of the invention
It is an object of the invention to provide a kind of king-tower and its construction method, to solve to be built into present in prior art
This is higher, dead load is larger, be subject to the poor technical problem of press-bending compound action power effect.
The structure of king-tower and construction method that the present invention provides, this king-tower includes upper king-post strut, middle cross beam and lower king-post strut；Under
King-post is in inverted V-shaped；Upper king-post strut, middle cross beam and lower king-post strut are from top to bottom in turn connected to form " people " font；It is provided with upper king-post strut
Lightening hole.
Further, it is provided with passage in upper king-post strut, middle cross beam and lower king-post strut, extend along described passage in passage
Direction is provided with cat ladder.
Further, king-tower also includes cushion cap and two tower seats；Two tower seats are disposed on cushion cap；Lower king-post strut includes
Two symmetrically arranged curved sub- king-posts；Two sub- king-posts connect formation lower king-post strut；The lower end of each lower king-post strut is respectively provided with
On a tower seat.
Further, the junction of two sub- king-posts is curved.
Further, the width of the side wall of upper king-post strut is gradually increased from the bottom to top.
A kind of construction method applying one of them described king-tower above-mentioned, the method comprises the following steps：
1) support is ridden upon predeterminated position；
2) stiff skeleton is installed on support；
3) wiretie and installation built-in fitting on stiff skeleton；
4) installation form on built-in fitting, so that template is trapped among outside reinforcing bar；
5) to casting concrete in template to form lower king-post strut and the middle cross beam of king-tower；
6) multiple steel anchor boxes are in turn installed on middle cross beam from the bottom to top；
7) repeat step 1-4；
8) to casting concrete in template to form the upper king-post strut of king-tower；Gap between two adjacent steel anchor boxes is formed
Lightening hole.
The present invention provide king-tower its be applied on cable-stayed bridge, be mainly used to anchor drag-line.King-tower includes upper king-post strut, middle horizontal stroke
Beam and lower king-post strut, upper king-post strut, middle cross beam and lower king-post strut are from top to bottom in turn connected to form " people " font, upper king-post strut is provided with and subtracts
Repeated hole.First, the king-tower of " people " font makes the active force of the overall gravity of this tower be scattered in the both sides of king-tower, rather than concentrates
Act on center, that is, jointly being supported by the both sides of the bottom of this king-tower, so that king-tower is subject to the effect of press-bending combining ability
More preferably.Secondly, upper king-post strut is provided with lightening hole, which alleviates deadweight, reduce the construction cost of king-tower simultaneously.
From the foregoing, it will be observed that the present invention provide king-tower, king-tower be subject to press-bending combining ability effect good, dead load is little, is built into
This is low.
Brief description
In order to be illustrated more clearly that the specific embodiment of the invention or technical scheme of the prior art, below will be to concrete
In embodiment or description of the prior art the accompanying drawing of required use be briefly described it should be apparent that, below describe in
Accompanying drawing is some embodiments of the present invention, for those of ordinary skill in the art, before not paying creative work
Put, other accompanying drawings can also be obtained according to these accompanying drawings.
The structural representation of the king-tower that Fig. 1 provides for the embodiment of the present invention one；
The structural representation of the king-tower that Fig. 2 provides for another embodiment of the present invention；
Fig. 3 is the step block diagram of construction method of the present invention.
Reference：
1- upper king-post strut；2- middle cross beam；3- lower king-post strut；
4- lightening hole；5- passage；6- cat ladder；
7- cushion cap；8- tower seat；31- king-post；
311- supporting construction.
Specific embodiment
Below in conjunction with accompanying drawing, technical scheme is clearly and completely described with the enforcement it is clear that described
Example is a part of embodiment of the present invention, rather than whole embodiments.Based on the embodiment in the present invention, ordinary skill
The every other embodiment that personnel are obtained under the premise of not making creative work, broadly falls into the scope of protection of the invention.
In describing the invention, it should be noted that term " " center ", " on ", D score, "left", "right", " vertical ",
The orientation of instruction such as " level ", " interior ", " outward " or position relationship are based on orientation shown in the drawings or position relationship, merely to
Be easy to describe the present invention and simplify description, rather than instruction or the hint device of indication or element must have specific orientation,
With specific azimuth configuration and operation, therefore it is not considered as limiting the invention.Additionally, term " first ", " second ",
" the 3rd " is only used for describing purpose, and it is not intended that indicating or hint relative importance.
In describing the invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected, or is integrally connected；Can
To be to be mechanically connected or electrical connection；Can be to be joined directly together it is also possible to be indirectly connected to by intermediary, Ke Yishi
The connection of two element internals.For the ordinary skill in the art, above-mentioned term can be understood as the case may be
Concrete meaning in the present invention.
Fig. 1 is the structural representation of king-tower provided in an embodiment of the present invention, as shown in figure 1, the king-tower that the present embodiment provides,
This king-tower includes：Upper king-post strut 1, middle cross beam 2 and lower king-post strut 3；Lower king-post strut 3 is in inverted V-shaped；Upper king-post strut 1, middle cross beam 2 and lower king-post strut 3
From top to bottom it is in turn connected to form " people " font；The structural representation of the king-tower that Fig. 2 provides for another embodiment of the present invention, such as schemes
Shown in 2, upper king-post strut 1 is provided with lightening hole 4.
Wherein, the shape of cross section of king-tower is " people " font, and vertical sectional shape is Y-shaped, runs through towards bridge axle vertical direction
Slit be formed at substantial middle.
Further, upper king-post strut 1 longitudinal section is hollow box section.
Lightening hole 4 can be one or plural multiple.It is preferred that lightening hole 4 is multiple, multiple subtract
Repeated hole 4 is from top to bottom disposed on upper king-post strut 1.
The king-tower that the present embodiment provides, it is applied on cable-stayed bridge, is mainly used to anchor drag-line.King-tower include upper king-post strut 1,
Middle cross beam 2 and lower king-post strut 3, upper king-post strut 1, middle cross beam 2 and lower king-post strut 3 are from top to bottom in turn connected to form " people " font, upper king-post strut 1
On be provided with lightening hole 4.First, the king-tower of " people " font makes the active force of the overall gravity of this tower be scattered in the two of king-tower
Side, rather than concentrate act on center, that is, jointly being supported by the both sides of the bottom of this king-tower, so that king-tower is pressurized
The effect of curved combining ability is more preferable.Secondly, lightening hole 4 is provided with upper king-post strut 1, which alleviates deadweight, reduce king-tower simultaneously
Construction cost.
From the foregoing, it will be observed that the present embodiment provide king-tower, king-tower be subject to press-bending combining ability effect good, dead load is little, build
Low cost.
As shown in Fig. 2 on the basis of above-described embodiment, further, in upper king-post strut 1, middle cross beam 2 and lower king-post strut 3
It is provided with passage 5, the direction extending along passage 5 in passage 5 is provided with cat ladder 6.
Wherein, cat ladder 6 edge can arrange railing, for protecting the safety of workmen.
The bearing of trend of the passage 5 in upper king-post strut 1, middle cross beam 2 and lower king-post strut 3 is from the bottom to top, between three
Passage 5 connects.So user can directly reach upper king-post strut by the passage 5 in middle cross beam 2 by the passage 5 in lower king-post strut 3
1, and upper king-post strut 1, middle cross beam 2 and lower king-post strut 3 are overhauled respectively, convenient use person enters passage 5.
In the present embodiment, passage 5 and cat ladder 6 are arranged on the inside of upper king-post strut 1, middle cross beam 2 and lower king-post strut 3, conveniently apply
Workman person's upper tower maintenance.
As shown in figure 1, on the basis of upper embodiment, further, king-tower also includes cushion cap 7 and two tower seats 8；Two
Tower seat 8 is disposed on cushion cap 7；Lower king-post strut 3 includes two symmetrically arranged curved sub- king-posts 31；Two sub- king-posts 31
Connect and form lower king-post strut 3；The lower end of each lower king-post strut 3 is arranged on a tower seat 8.
Wherein, tower seat 8 is a spatial special structure, symmetrical along bridge longitudinal centre line and cross central line, with cushion cap 7 anchor
It is solidly connected.Tower seat 8 is alternatively the hollow housing of upper end open, and the lower end of every sub- king-post 31 is arranged in tower seat 8, thus can keep away
Exempt from sub- king-post 31 to come off from tower seat 8, improve the stability that sub- king-post 31 is connected with tower seat 8.
Pressure transducer and temperature sensor can be provided with inside tower seat 8 and cushion cap 7.Wherein, pressure transducer is used for
Detect the pressure data that tower seat 8 and cushion cap 7 bear, temperature sensor is used for detecting temperature change in work progress for the cushion cap 7.
Sub- king-post 31 also includes supporting construction 311, and supporting construction 311 is arranged on inside the bottom of sub- king-post 31, with son
King-post 31 anchor connection, for placing bridge.
In the present embodiment, cushion cap 7 and tower seat 8 are arranged on the bottom of king-tower, in use, for supporting king-tower,
Thus king-tower can be avoided to be set directly on the bottom surface of river, and because the bottom surface of river is wet and slippery, it is not fixed easily king-tower, cushion cap 7
Setting with tower seat 8 further increases the steadiness of king-tower.
As shown in figure 1, on the basis of above-described embodiment, further, the junction of two sub- king-posts 31 of king-tower is in
Arc.
Wherein, the junction of two sub- king-posts 31 is located at below middle cross beam 2, is reinforced concrete structure, with middle cross beam 2 anchor
It is solidly connected.
In the present embodiment, the junction of two sub- king-posts 31 is set to arc, the active force of upper king-post strut 1 can be made to divide
Dissipate at each junction point of arc, rather than concentrate on a certain position, so that the structure stress of king-tower is more reasonable.
As shown in Fig. 2 on the basis of above-described embodiment, further, the width of the side wall of upper king-post strut 1 from the bottom to top by
Cumulative big.
Wherein, upper king-post strut 1 also includes staying cable anchorage zone.Staying cable anchorage zone is fixed in upper king-post strut 1, and upper king-post strut 1
Anchor connection.Staying cable anchorage zone is used for fixing suspension cable.
Further, anchor case 11 structure that staying cable anchorage zone can be combined using steel concrete, anchor case 11 structure is divided into 9
Sections, lightening hole 4 is located between each sections, is separated by anchor case 11.
In the present embodiment, the width of the side wall of upper king-post strut 1 is gradually increased from the bottom to top, makes king-tower in the process of anchoring drag-line
In, it is more uniformly stressed.
Present invention also offers a kind of Construction of Pylon method being applied to king-tower realization, construction party of the present invention as shown in Figure 3
The step block diagram of method, this construction method comprises the following steps：
1) support is ridden upon predeterminated position；
2) stiff skeleton is installed on support；
3) wiretie and installation built-in fitting on stiff skeleton；
4) installation form on built-in fitting, so that template is trapped among outside reinforcing bar；
5) to casting concrete in template to form lower king-post strut 3 and the middle cross beam 2 of king-tower；
6) on middle cross beam 2, multiple steel anchor boxes are installed in compartment of terrain from the bottom to top；
7) repeat step 1-4；
8) to casting concrete in template to form the upper king-post strut 1 of king-tower；Gap shape between two adjacent steel anchor boxes
Become lightening hole 4.
Supporting construction is I-steel.Built-in fitting includes climbing cone.
In step 5) further comprising the steps of before：
In template, support member is installed, with support shuttering.
Further, constructed using climbing form method.
King-tower is from top to bottom divided into 28 sections；Section 1 section is located at bottom, and 28 sections are applied from the bottom to top successively
Work is to form king-tower；In the 2nd, 4,6,8,10,12, the work progress of 13 sections, support member is arranged on template, support member is used
In support shuttering.Support member can be 40b I-steel.One end of I-steel is abutted the other end with ground and is abutted with template.Pre-buried
Part includes climbing cone etc..
Steel anchor box can be divided into 9, user is existing 3 steel anchor box intervals to be lifted on middle cross beam 2, then by this 3
Steel anchor box pours and is fixedly arranged on middle cross beam 2, then lifts other 6 steel anchor boxes again.
Climbing form method is adopted to construct 28 sections.That is, by lower king-post strut 3, middle cross beam 2 and the equal segmentation of upper king-post strut 1 by under
Supreme being poured successively using climbing form method is carried out.King-tower height is 107.8m, arranges the tower rib being square, make on lower king-post strut 3
Obtaining the cross sectional shape at this is in "convex" shaped.Due to height-limited, creeping formwork template inside 1-2 sections tower rib and king-post, is adopted to spell
Dress, is fastened to pull bar using φ 20；Because king-tower slope is larger, template system is subject to concrete effect of weight larger, using Two bors d's oeuveres 40b
I-steel is strengthened as back cord, and is reinforced as diagonal brace using 40b I-steel.In Section 2 section work progress, because maximum construction is high
Degree has reached 9.6m therefore has set up support as operation platform in king-tower periphery, this platform good mechanical properties, provides for workmen
Easily platform, makes the working environment safer.
During the construction of Section 3 section, the king-post plagioclase completing of having constructed averagely is about 7m, is still unsatisfactory for guide rails assembling length requirement
(8m)；Formwork reinforcement aspect：Because at Section 2 Duan Shita rib, I-steel diagonal brace length has reached 12m it is contemplated that lengthening diagonal brace
Its own amount of deflection also can increase therewith, therefore Section 3 section sections adopts creeping formwork lower frame as the main bearing member of template system
And installation operation platform.
The construction of Section 4 section is similar with Section 3 section, and guide rail is installed in king-post side can self climbing.Now still adopt under climbing frame
It is upper and lower that Simple crawling ladder set up by support.
First more than Section 5 Duan Weita rib sections, because 4 sections tower rib both sides king-post width narrow, limited space,
Lower frame cannot be installed；Adopt Two bors d's oeuveres 40b I-steel erection construction platform at tower rib top.
During the construction of Section 6 section, using lower frame as supporting member, other positions are identical with 5 sections.
Finally it should be noted that：Various embodiments above only in order to technical scheme to be described, is not intended to limit；To the greatest extent
Pipe has been described in detail to the present invention with reference to foregoing embodiments, it will be understood by those within the art that：Its according to
So the technical scheme described in foregoing embodiments can be modified, or wherein some or all of technical characteristic is entered
Row equivalent；And these modifications or replacement, do not make the essence of appropriate technical solution depart from various embodiments of the present invention technology
The scope of scheme.
Claims (10)
1. a kind of king-tower is it is characterised in that include：Upper king-post strut, middle cross beam and lower king-post strut；
Described lower king-post strut is in inverted V-shaped；Described upper king-post strut, wherein the middle cross beam and described lower king-post strut are from top to bottom in turn connected to form
" people " font；It is provided with lightening hole on described upper king-post strut.
2. king-tower according to claim 1 is it is characterised in that described upper king-post strut, wherein the middle cross beam and described lower king-post strut
Inside it is provided with passage, the direction extending along described passage in described passage is provided with cat ladder.
3. king-tower according to claim 1 is it is characterised in that also include cushion cap and two tower seats；
Two described tower seats are disposed on described cushion cap；Described lower king-post strut includes two symmetrically arranged curved sub- towers
Post；Two described sub- king-posts connect the described lower king-post strut of formation；The lower end of each described lower king-post strut is arranged at a described tower seat
On.
4. king-tower according to claim 3 is it is characterised in that the junction of two described sub- king-posts is curved.
5. king-tower according to claim 1 is it is characterised in that the width of the side wall of described upper king-post strut gradually increases from the bottom to top
Greatly.
6. a kind of construction method being applied to the king-tower described in one of them according to claim 1-5 it is characterised in that：Including with
Lower step：
1) support is ridden upon predeterminated position；
2) stiff skeleton is installed on support；
3) wiretie and installation built-in fitting on stiff skeleton；
4) installation form on built-in fitting, so that template is trapped among outside reinforcing bar；
5) to casting concrete in template to form lower king-post strut and the middle cross beam of king-tower；
6) multiple steel anchor boxes are in turn installed on middle cross beam from the bottom to top；
7) repeat step 1-4；
8) to casting concrete in template to form the upper king-post strut of king-tower；Gap between two adjacent steel anchor boxes forms loss of weight
Hole.
7. the construction method of king-tower according to claim 6 is it is characterised in that in step 5) before also include following step
Suddenly：
In template, support member is installed, with support shuttering.
8. the construction method of king-tower according to claim 7 is it is characterised in that constructed using climbing form method.
9. the construction method of king-tower according to claim 8 is it is characterised in that described support member is I-steel.
10. the construction method of king-tower according to claim 9 is it is characterised in that described built-in fitting includes climbing cone.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610793854.9A CN106400688A (en) | 2016-08-31 | 2016-08-31 | Main tower and construction method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610793854.9A CN106400688A (en) | 2016-08-31 | 2016-08-31 | Main tower and construction method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106400688A true CN106400688A (en) | 2017-02-15 |
Family
ID=58000937
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610793854.9A Pending CN106400688A (en) | 2016-08-31 | 2016-08-31 | Main tower and construction method thereof |
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| Country | Link |
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| CN (1) | CN106400688A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109577196A (en) * | 2019-01-24 | 2019-04-05 | 中铁大桥科学研究院有限公司 | A kind of bridge Sarasota and cable-stayed bridge |
| CN109763431A (en) * | 2019-03-05 | 2019-05-17 | 湖北旺科模板有限公司 | A kind of bridge tower hydraulic climbing formwork is without pulling rod formwork construction method |
| CN110184941A (en) * | 2019-06-24 | 2019-08-30 | 安徽省公路桥梁工程有限公司 | A kind of bridge main tower construction method |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109577196A (en) * | 2019-01-24 | 2019-04-05 | 中铁大桥科学研究院有限公司 | A kind of bridge Sarasota and cable-stayed bridge |
| CN109577196B (en) * | 2019-01-24 | 2024-02-02 | 中铁大桥科学研究院有限公司 | Bridge cable tower and cable-stayed bridge |
| CN109763431A (en) * | 2019-03-05 | 2019-05-17 | 湖北旺科模板有限公司 | A kind of bridge tower hydraulic climbing formwork is without pulling rod formwork construction method |
| CN110184941A (en) * | 2019-06-24 | 2019-08-30 | 安徽省公路桥梁工程有限公司 | A kind of bridge main tower construction method |
| CN110184941B (en) * | 2019-06-24 | 2020-11-06 | 安徽省公路桥梁工程有限公司 | Bridge main tower construction method |
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Application publication date: 20170215 |