CN109137715A - A kind of steel structure arch bridge - Google Patents
A kind of steel structure arch bridge Download PDFInfo
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- CN109137715A CN109137715A CN201811235259.9A CN201811235259A CN109137715A CN 109137715 A CN109137715 A CN 109137715A CN 201811235259 A CN201811235259 A CN 201811235259A CN 109137715 A CN109137715 A CN 109137715A
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- steel
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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
- E01D4/00—Arch-type 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
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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
- E01D19/02—Piers; Abutments ; Protecting same against drifting ice
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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
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling 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
- E01D2101/00—Material constitution of bridges
- E01D2101/30—Metal
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- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The present invention relates to a kind of steel structure arch bridges, it mainly solves steel structure arch bridge existing in the prior art and mostly uses steel pipe, concrete is arranged with the mode that steel structure combines, constructs, concrete and tube material all use more, and then cause steel structure arch bridge overall structure quality larger, the inadequate problem of intensity.Steel structure arch bridge includes: bridge pier；Arch steel structure one, including side steel structure and top steel structure；Arch steel structure two, it is arranged symmetrically with arch steel structure one, the curved cross-section profile of arch steel structure one and arch steel structure two is same cross-sectional channel steel, i.e. steel structure arch bridge monnolithic case uses two parts arch steel structure section, arch section and top are all made of the cross weld of channel steel and band steel, reduce the use of concrete and steel, and then alleviate steel structure arch bridge overall structure quality, improves the overall structural strength of steel structure arch bridge.
Description
Technical field
The present invention relates to arch bridge field, it is related specifically to a kind of steel structure arch bridge and its construction method.
Background technique
Existing arch bridge mainly includes bridge pier, the road arched concrete Liang He being fixed between two adjacent bridge piers
Concrete casting with masonry bond or is used between road surface and arched concrete beam in face.
As a kind of special arch bridge --- steel structure arch bridge, steel structure arch bridge mostly uses steel pipe, concrete in the market
Be configured and construct with the mode that steel structure combines, concrete and tube material all use it is more, so as to cause steel structure arch
Shape bridge overall structure quality is larger, and the problem inadequate there is also arch bridge integral strength.
Thus it is necessary to improve the existing technology, and finding one kind can reduce steel structure arch bridge overall structure quality,
And the steel structure arch bridge of steel structure arch bridge intensity can be improved, and the present patent application is asked aiming at existing in the prior art
Topic carries out innovation and creation.
Summary of the invention
One of the object of the invention is to provide a kind of steel structure arch bridge, to solve steel structure arch bridge knot existing in the prior art
Structure concrete and tube material are using more, and larger so as to cause steel structure arch bridge overall structure quality, intensity is to be improved
The problem of.
The two of the object of the invention are to provide a kind of construction method of steel structure arch bridge.
To reach one of above-mentioned purpose, the invention adopts the following technical scheme:
A kind of steel structure arch bridge, comprising: bridge pier 1, including pier cap 9, pier shaft 39 and basis 40；
Arch steel structure 1, including side steel structure 10 and top steel structure 11；
Arch steel structure 23 is arranged symmetrically with the arch steel structure 1, the arch steel structure 23 and the arch steel structure one
2 structures having the same, the arch steel structure 1 are same cross-sectional channel steel with 23 arc of arch steel structure.
Using above-mentioned technological means, steel structure arch bridge monnolithic case uses the form in two parts arch steel structure section, reduces
The use of concrete and tube material, can reduce steel structure arch bridge overall structure quality, and steel structure arch can be improved
The overall structural strength of bridge.
According to one embodiment of present invention, wherein the pier cap 9 is set to 39 top of pier shaft, and the pier shaft 39 is arranged
Above basis 40；The pier cap 9 is using with a thickness of 0.5m, and span is that the reinforced beam of 8m is arranged, the pier cap 9
It is made into cornice formula, 9 shape of pier cap uses rectangle top cap；The pier shaft 39 uses concrete solid structure, concrete strength
Not less than C30, the top surface size of the pier shaft 39 is the width that the 9 vertical, horizontal size of pier cap subtracts cornice；The pier shaft 39
Height in 5m, the pier shaft 39 is set as 90 degree of straight slopes；The arch steel structure 1 and 23 main structure of arch steel structure
Steel material is Q235B steel.Bridge pier 1 also known as " masonry structure " makes full use of masonry material using concrete solid structure
(" bricklaying is referred to as using " masonry structure " or " concrete structure " that brick, stone material, mortar or concrete are built up by construction material
Structure ") compressive property bear vertical direction and level so as to realize by the larger cross-section size and weight of itself
The external force in direction.
According to one embodiment of present invention, wherein the side steel structure 10 be symmetrical arranged, on the side steel structure 10 by
Arrive outside interior bilateral symmetry be disposed with 1., 2., 3. three installation sites.1., 2., 3. three installation sites are respectively used to install
End connects steel structure 16, connection steel structure 1 and connection steel structure 2 18.
According to one embodiment of present invention, wherein above one 2 section of arch steel structure mutually by seven 12 head and the tail of channel steel
It mutually welds, forms an arch cross section profile, the channel steel 12 uses 10# steel pipe；Uniformly distributed six on the arch cross section profile
A position arranges that vertical channel steel 20, one end of the vertical channel steel 20 and the arch cross section profile of composition pass through junction steel plate vertically
2 19 are welded, and the other end of the vertical channel steel 20 welds bottom channel steel 1, and the bottom channel steel 1 is horizontally disposed.
When designing arch steel structure 1, the supporting form of structure, the form of arch, the rise of arch, rise satisfaction are fully taken into account
Drain structure requirement, encircles figure formula and depth of section, to guarantee the abundant reasonability of the structure arrangement of arch.
According to one embodiment of present invention, wherein horizontal Welding flat steel 1 at the node of the channel steel 12；Every two
A diagonal brace channel steel 21 is arranged between vertical channel steel 20 described in root；Arch cross section profile middle position is equipped with junction steel plate one
15, arranged crosswise diagonal brace channel steel 21 between the vertical channel steel 20 of two of 12 middle position of channel steel, the arranged crosswise it is oblique
It supports channel steel 21 and the band steel 1 and structural strengthening is carried out by the junction steel plate 1 of center.Arch steel structure 1 herein
Using diagonal brace channel steel 21, band steel 1 and junction steel plate 1, the intensity of arch steel structure 1 is further improved.
According to one embodiment of present invention, wherein 1. 10 installation site of side steel structure is located to arrange end connection steel
Structure 16, the end connection steel structure 16 distinguish horizontally disposed top square tube 24 and lower square tube 25 above and below；The top square tube 24
Diagonal brace square tube 23 is set between the lower square tube 25, is carried out between every two diagonal brace square tubes 23 using 90 degree of angle
Interlaced arrangement, the top square tube 24, lower square tube 25,23 junction of diagonal brace square tube are fixed using rectangle junction steel plate 22
Connection.Interlaced arrangement is carried out using 90 degree of angle between every two diagonal brace square tubes 23 herein, with top square tube 24, lower square tube
25 form triangular structure, take full advantage of the property that triangle has stability, and rectangle junction steel plate 22 is cooperated to carry out
Weld is fixedly connected, so that end connection steel structure 16 is more firm, improves the integral strength of end connection steel structure 16.
According to one embodiment of present invention, wherein 2. 10 installation site of side steel structure locates arrangement connection steel structure one
17, the connection steel structure 1 is weld grid structure；The connection steel structure 1 distinguishes horizontally disposed top channel steel one above and below
30 and bottom channel steel 2 28, a vertically arranged channel steel is welded in one 17 middle position of connection steel structure, described vertically arranged
Welding flat steel 2 27 in the form of cross, the band steel 2 27 are connected by junction steel plate 3 26 and semicircle respectively for channel steel two sides
Connect the structural strengthening that steel plate 1 carries out weld up and down.Vertically arranged channel steel two sides use in the form of cross herein
The welding form of Welding flat steel 2 27 takes full advantage of the property that triangle has stability, and passes through junction steel plate 3 26
The structural strengthening of weld up and down is carried out with semicircle junction steel plate 1, so that connection steel structure 1 is more firm, the company of improving
Connect the integral strength of steel structure 1.
According to one embodiment of present invention, wherein 3. 10 installation site of side steel structure locates arrangement connection steel structure two
18, the connection steel structure 2 18 generally weld grid structure；The connection steel structure 2 18 distinguishes horizontally disposed upper slot above and below
A vertically arranged channel steel, the vertical cloth are welded in steel 2 35 and bottom channel steel 3 33,2 18 middle position of connection steel structure
The channel steel two sides set Welding flat steel 3 32 in the form of cross respectively, it is the top channel steel 2 35, bottom channel steel 3 33, flat
The structural strengthening of upper and lower weld is carried out between steel 3 32 by junction steel plate 4 31 and semicircle junction steel plate 2 34.It adopts herein
The channel steel directly arranged is welded used in connection 2 18 middle position of steel structure, and in vertically arranged channel steel two sides respectively to intersect ten
The form Welding flat steel 3 32 of word takes full advantage of the property that triangle has stability, mating connection steel plate 4 31 and semicircle
Junction steel plate 2 34 carries out the structural strengthening of upper and lower weld, so that connection 2 18 structure of steel structure is more firm, improves
Connection steel structure 2 18 intensity.
According to one embodiment of present invention, wherein the outline border top of the arch steel structure 1 is evenly arranged top at 5
Steel structure 11, the top steel structure 11 distinguish horizontally disposed top band steel 36 and lower part band steel 37,36 He of top band steel above and below
Steel network forming frame 38 is welded between lower part band steel 37.Herein using the welding steel network forming frame between top band steel 36 and lower part band steel 37
38 technical solution, 38 structural framework steel of rack are mutually staggeredly arranged, and intensity is higher, as top steel structure 11, are conducive to big
The big intensity for improving whole one 2 skeleton of arch steel structure.
It is the two of arrival above-mentioned purpose, the invention adopts the following technical scheme:
A kind of construction method of steel structure arch bridge, includes the following steps:
Step 1: the construction of arch steel structure 1 and arch steel structure 23:
Using sectional making, transport and the form of construction work of installation:
(a) arched girder, connection steel structure 16, connection steel structure 1, connection 2 18 processing and fabricating of steel structure are completed in factory, fortune
Transport to construction site；
(b) the reasonable axis of arch and the rise of arch are determined first, promote arch structure reasonable stress, rise meets drain structure
It is required that；
(c) side arched girder is first lifted according to construction site condition, then lifts other side side arched girder；
(d) end is then connected into steel structure 16, connection steel structure 1, connection steel structure 2 18, according to the weldering of design designated position
Be connected to arch steel structure 1,23 two sides of arch steel structure arch steel structure section on, it is qualified that butt weld is examined；
Step 2: the construction of bridge pier 1:
(a) template, bracket, reinforcing bar and built-in fitting are checked before casting concrete；
(b) bridge pier 1 is completed using the construction of large-scale steel form one-time-concreting, right again as integral mold plate pouring on-site consolidation
Pier shaft 39 carries out concreting；Since pier section herein is smaller, mode is poured using continuous placing, to guarantee
The integrality of concrete uses when slabstone concreting in bridge pier pouring construction and needs to pay attention to its ratio with concrete；
Step 3: ensure that arch steel structure arch springing part is correct in place, then to being reliably fixedly connected between steel arch,
Then concreting is carried out again；Reliable method is used in work progress, it is ensured that the density of concreting；
Step 4: by mounted top steel structure 11 is respectively welded at the arch steel structure 1 built and arch
The top of steel structure 23, contact position are welded by the way of site welding, and after the completion of to be welded, steel structure arch bridge is whole
Steel structure erecting and welding is completed.
The utility model has the advantages that
A kind of steel structure arch bridge of the present invention, arch section and top are all made of the welding side of the cross weld of channel steel and band steel
Formula, by being reinforced by link block to structure, steel structure arch bridge monnolithic case uses two parts for all parts junction
The form in arch steel structure section, reduces the use of concrete and steel pipe, can reduce steel structure arch bridge overall structure quality, and
And the overall structural strength of steel structure arch bridge can be greatly improved.
Detailed description of the invention
Present invention will be further explained below with reference to the attached drawings and examples.
Fig. 1 is a kind of main view of steel structure arch bridge general assembly of the present invention
Fig. 2 is a kind of top view of steel structure arch bridge general assembly of the present invention.
Fig. 3 is a kind of main view of steel structure arch bridge bridge pier of the present invention.
Fig. 4 is a kind of top view of steel structure arch bridge bridge pier of the present invention.
Fig. 5 is a kind of left view of steel structure arch bridge bridge pier of the present invention.
Fig. 6 is the A of Fig. 3 to partial view.
Fig. 7 is the B of Fig. 5 to partial view.
Fig. 8 is a kind of schematic perspective view of steel structure arch bridge arch steel structure one of the present invention.
Fig. 9 is a kind of main view of steel structure arch bridge arch steel structure one of the present invention.
Figure 10 is a kind of top view of steel structure arch bridge arch steel structure one of the present invention.
Figure 11 is a kind of side view of steel structure arch bridge arch steel structure one of the present invention.
Figure 12 is a kind of structural schematic diagram of steel structure arch bridge arch steel structure one of the present invention.
Figure 13 is a kind of main view of steel structure arch bridge side of the invention steel structure.
Figure 14 is a kind of top view of steel structure arch bridge side of the invention steel structure.
Figure 15 is the A of Figure 13 to partial illustrations.
Figure 16 is the main view that a kind of steel structure arch bridge end of the present invention connects steel structure.
Figure 17 is the left view that a kind of steel structure arch bridge end of the present invention connects steel structure.
Figure 18 is the B of Figure 17 to partial illustrations.
Figure 19 is the main view that a kind of steel structure arch bridge of the present invention connects steel structure one.
Figure 20 is the main view that a kind of steel structure arch bridge of the present invention connects steel structure two.
Figure 21 is the left view that a kind of steel structure arch bridge of the present invention connects steel structure two.
Figure 22 is the schematic perspective view of steel structure at the top of a kind of steel structure arch bridge of the present invention.
Figure 23 is the main view of steel structure at the top of a kind of steel structure arch bridge of the present invention.
Figure 24 is the top view of steel structure at the top of a kind of steel structure arch bridge of the present invention.
In attached drawing
1, bridge pier 2, arch steel structure 1, arch steel structure two
4, side pier column 5, pier column 6, road surface
7, notch 8, supporting beam 9, pier cap
10, side steel structure 11, top steel structure 12, channel steel
13, bottom channel steel 1, band steel 1, junction steel plate one
16, end connection steel structure 17, connection steel structure 1, connection steel structure two
19, junction steel plate 2 20, vertical channel steel 21, diagonal brace channel steel
22, rectangle junction steel plate 23, diagonal brace square tube 24, top square tube
25, bottom square tube 26, junction steel plate 3 27, band steel two
28, bottom channel steel 2 29, semicircle junction steel plate 1, top channel steel one
31, junction steel plate 4 32, band steel 3 33, bottom channel steel three
34, semicircle junction steel plate 2 35, top channel steel 2 36, top band steel
37, lower part band steel 38, rack 39, pier shaft
40, basic
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to embodiments, to the present invention
Embodiment is further elaborated.It is real to should be appreciated that the specific embodiments described herein are merely illustrative of the present invention
Example is applied, embodiment is not intended to limit the present invention.
In the description of the present invention, it should be noted that term " center ", "upper", "lower", "left", "right", "vertical",
The orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" be based on the orientation or positional relationship shown in the drawings, merely to
Convenient for description the present invention and simplify description, rather than the device or element of indication or suggestion meaning must have a particular orientation,
It is constructed and operated in a specific orientation, therefore is not considered as limiting the invention.In the description of the present invention, it needs to illustrate
Be unless specifically defined or limited otherwise, term " installation ", " connected ", " connection " shall be understood in a broad sense, for example, can be with
It is to be fixedly connected, may be a detachable connection, or is integrally connected；It can be mechanical connection, be also possible to be electrically connected；It can be with
It is to be connected directly, the connection inside two elements can also be can be indirectly connected through an intermediary.For the general of this field
For logical technical staff, the concrete meaning of above-mentioned term in the present invention can be understood with concrete condition.
As shown in figs. 1-7, a kind of steel structure arch bridge of the present invention, comprising: bridge pier 1, arch steel structure 1 and arch steel structure 23
Three parts；Bridge pier 1 is made of pier cap 9, pier shaft 39 and basis 40, and 1 height of bridge pier is in 15m hereinafter, using concrete solid knot
Structure, concrete solid structure are also known as " masonry structure ", make full use of masonry material (with the building such as brick, stone material, mortar or concrete
Material) compressive property, further by the larger cross-section size and weight of itself, so as to bear vertical direction and level
The external force in direction.For pier cap 9 using with a thickness of 0.5m, the bridge pier cap 9 of the reinforced beam of 8m span is made into cornice formula,
Pier cap 9 is made into cornice formula, is conducive to save bricklaying, and 9 shape of pier cap uses rectangle top cap.
The poured-in-place at the construction field (site) of pier shaft 39 uses large-scale steel form one-time-concreting using concrete solid structure
Construction pours pier shaft concrete pouring on-site consolidation as integral mold plate, can protect in this way using large-scale combined steel form
The durability for demonstrate,proving 1 structure of bridge pier, prolongs the service life；Concrete strength is not less than C30, and the top surface size of pier shaft 39 is pier cap 9
Vertical, horizontal size subtracts the width of cornice；The height of pier shaft 39 is in 5m, so pier shaft 39 is set as 90 degree of straight slopes.
Bridge pier 1 should be noted when constructing: select slag, the intensity of light water mudstone is unsuitable excessively high, needs before casting concrete
Template, bracket, reinforcing bar and built-in fitting are checked, to guarantee that all parts meet construction requirement；Bridge pier herein
Section is smaller, continuous placing, guarantees the integrality of concrete；Piece stone concrete is used in Bridge Pier Construction, is filled with the number of stone
Amount is no more than the 1/4 of volume of concrete, and the full-size of stone, which is no more than, is filled with 1/4 of minimum compact mechanism at stone.Big
Volume concrete (bridge pier as herein pours) pours, and can not only reduce cement consumption, can also reduce the calorific value of bridge pier
The disease that structure is generated.
As shown in Fig. 1, Fig. 8-15, arch steel structure 1 is arranged symmetrically with arch steel structure 23, arch steel structure 23 and arch steel
The structure having the same of structure 1, arc are all same cross-sectional channel steel, and main structure steel material is Q235B, and Q235B has
Certain elongation, intensity, good toughness and castability, are easy to punching press and welding, thus during installation, it uses
Q235B steel facilitate punching press and welding, and intensity is high.Arch steel structure 1 and arch steel structure 23 include side steel structure 10 and top
Steel structure 11, be symmetrically disposed on side steel structure 10 from outside to inside 1., 2., 3. three installation sites, 1., 2., 3. three
A installation site is respectively used to mounting end connection steel structure 16, connection steel structure 1 and connection steel structure 2 18；One 2 sections of arch steel structure
It is welded to form a cross section profile mutually by seven 12 head and the tail of channel steel above face, channel steel 12 forms an arch using 10# steel pipe
Shape, except (being usually no more than containing carbon and for deoxidation containing a certain amount of silicon in carbon constructional quality steel 10# steel pipe
0.40%), manganese (be usually no more than 0.80%, it is higher can be to outside 1.20%) alloying element, without other alloying elements (remaining members
Except element), it is more demanding to chemical component, there is preferable mechanical property, thus the intensity of arch steel structure 1 can be improved,
The corrosion and damage of rainwater can also be reduced, can be prolonged its service life to a certain extent.
Vertical channel steel 20, vertical slots are arranged in six uniformly distributed positions vertically on the arch cross section profile of arch steel structure 1
One end of steel 20 and the arch section of composition are welded by junction steel plate 2 19, to reinforce the stability and peace of weld
Intensity is filled, the other end of vertical channel steel 20 welds bottom channel steel 1, and bottom channel steel 1 is horizontally disposed.In the slot being arranged symmetrically
Welding flat steel 1 at the node of steel 12, band steel have can by user demand, the advantages of fixed thickness, fixed width, production with fixed lengths, for
Family reduces cutting, and saves process, reduces artificial, material consumption, while decreasing the processing loss of raw material,
It is used herein as band steel to be welded, has the advantages that time saving, laborsaving, material-saving；One is arranged between every two vertical channel steels 20
Diagonal brace channel steel 21,12 middle position of channel steel are equipped with junction steel plate 1；Between the vertical channel steel 20 of two of 12 middle position of channel steel
Arranged crosswise diagonal brace channel steel 21, and structural strengthening is carried out by the junction steel plate 1 of center；Symmetrical other side arrangement
Identical arch steel structure section.
When arch steel structure 1 are installed in design, on the one hand, need to determine the reasonable axis of arch and the rise of arch, promote structure
Reasonable stress, rise meet drain structure requirement, on the other hand, it is also necessary in view of the supporting form of structure, encircle figure formula and
The height of cross section profile, and arch structure arrangement abundant reasonability, to guarantee the reasonability of arch steel structure 1 and practical
Property.
As shown in Figure 14,16-18,1. the left and right end portions in two arch steel structure sections, i.e. 10 installation site of side steel structure is located,
Arrange that end connects steel structure 16, end connects steel structure 16 and distinguishes horizontally disposed top square tube 24 and lower square tube 25, top above and below
Diagonal brace square tube 23 is arranged between square tube 24 and lower square tube 25, is handed between every two diagonal brace square tubes 23 using 90 degree of angle
Mistake arrangement takes full advantage of the property that triangle has stability, so that end connection 16 general frame of steel structure is more secured, and
It is fixedly connected in junction using rectangle junction steel plate 22, so that the stability of installation is further enhanced, to improve
The integral strength of end connection steel structure 16.
As shown in Figure 14, Figure 19,2. steel structure 10 installation site in side locates arrangement connection steel structure 1, and connection steel structure 1 is
One weld grid structure, horizontally disposed bottom channel steel 2 28 and top channel steel 1 respectively, connect among steel structure 1 above and below
A vertically arranged channel steel is welded in position, in vertically arranged channel steel two sides Welding flat steel two in the form of cross respectively
27, band steel has and can reduce cutting by user demand, calmly the advantages of thickness, fixed width, production with fixed lengths for user, and save work
Sequence reduces artificial, material consumption, while decreasing the processing loss of raw material, is welded here using band steel,
Has the advantages that time saving, laborsaving, material-saving；Welding flat steel 2 27 in the form of cross, taking full advantage of triangle has surely
Qualitative property so that connection one 17 general frame of steel structure is more secured, and passes through junction steel plate 3 26 and semicircle junction steel plate
One 29 carry out the structural strengthening of upper and lower weld, play the role of further reinforcing, to improve connection steel
The integral strength of structure 1.
As shown in Figure 14, Figure 20, Figure 21,3. steel structure 10 installation site in side locates arrangement connection steel structure 2 18, connects steel structure
2 18 are similarly a weld grid structure, because the rack is in the middle position in entire arch steel structure section, therefore monnolithic case
Size is larger compared with end connection steel structure 16, connection steel structure 1, to guarantee arch steel structure one for arch；Connect about 2 18 steel structure
A vertically arranged slot is welded in horizontally disposed bottom channel steel 3 33 and top channel steel 2 35 respectively, connection 2 18 middle position of steel structure
Steel, in vertically arranged channel steel two sides, Welding flat steel 3 32 in the form of cross, band steel have and can need by user respectively
The advantages of asking, determining thickness, fixed width, production with fixed lengths reduces cutting for user, and saves process, reduces artificial, material disappear
Consumption, while the processing loss of raw material is decreased, it is welded, is had time saving, laborsaving, material-saving excellent using band steel here
Point；Welding flat steel 3 32 in the form of cross take full advantage of the property that triangle has stability, so that connection steel structure
2 18 general frames are more secured, and the knot of upper and lower weld is carried out by junction steel plate 4 31 and semicircle junction steel plate 2 34
Structure is reinforced, and plays the role of further reinforcing, to improve the integral strength of connection steel structure 2 18.
As shown in Fig. 8, Figure 22-Figure 24, the outline border top of arch steel structure 1 is evenly arranged top steel structure 11, the top at 5
Portion's steel structure 11 distinguishes horizontally disposed top band steel 36 and lower part band steel 37 above and below, band steel have can by user demand, it is fixed it is thick,
The advantages of fixed width, production with fixed lengths, reduces cutting for user, and saves process, reduces artificial, material consumption, while
The processing loss for reducing raw material, is welded using band steel here, has the advantages that time saving, laborsaving, material-saving；On described
Steel network forming frame 38 is welded between portion's band steel 36 and lower part band steel 37, and steel network forming is welded between top band steel 36 and lower part band steel 37
Frame 38,38 structural framework steel of rack are mutually staggeredly arranged, and intensity is higher, as top steel structure 11, is conducive to greatly improve whole
The intensity of one 2 skeleton of body arch steel structure.
As shown in Fig. 1, Fig. 8, Fig. 9, Figure 14, a kind of arrangement and method for construction of steel structure arch bridge includes the following steps:
Step 1: the construction of arch steel structure 1 and arch steel structure 23:
Using sectional making, transport and the form of construction work of installation:
(a) arched girder, connection steel structure 16, connection steel structure 1, connection 2 18 processing and fabricating of steel structure are completed in factory, fortune
Transport to construction site；
(b) the reasonable axis of arch and the rise of arch are determined first, promote arch structure reasonable stress, rise meets drain structure
It is required that；
(c) side arched girder is first lifted according to construction site condition, then lifts other side side arched girder；
(d) end is then connected into steel structure 16, connection steel structure 1, connection steel structure 2 18, according to the weldering of design designated position
Be connected to arch steel structure 1,23 two sides of arch steel structure arch steel structure section on, it is qualified that butt weld is examined；
Step 2: the construction of bridge pier 1:
(a) template, bracket, reinforcing bar and built-in fitting are checked before casting concrete；
(b) bridge pier 1 is completed using the construction of large-scale steel form one-time-concreting, right again as integral mold plate pouring on-site consolidation
Pier shaft 39 carries out concreting；Since pier section herein is smaller, mode is poured using continuous placing, to guarantee
The integrality of concrete uses when slabstone concreting in bridge pier pouring construction and needs to pay attention to its ratio with concrete；
Step 3: ensure that arch steel structure arch springing part is correct in place, then to being reliably fixedly connected between steel arch,
Then concreting is carried out again；Reliable method is used in work progress, it is ensured that the density of concreting；
Step 4: by mounted top steel structure 11 is respectively welded at the arch steel structure 1 built and arch
The top of steel structure 23, contact position are welded by the way of site welding, and after the completion of to be welded, steel structure arch bridge is whole
Steel structure erecting and welding is completed.
Although the illustrative specific embodiment of the present invention is described above, in order to the technology of the art
Personnel are it will be appreciated that the present invention, but the present invention is not limited only to the range of specific embodiment, to the common skill of the art
For art personnel, as long as long as various change the attached claims limit and determine spirit and scope of the invention in, one
The innovation and creation using present inventive concept are cut in the column of protection.
Claims (9)
1. a kind of steel structure arch bridge, comprising:
Bridge pier (1), including pier cap (9), pier shaft (39) and basis (40)；
Arch steel structure one (2), including side steel structure (10) and top steel structure (11)；
Arch steel structure two (3) is arranged symmetrically with the arch steel structure one (2), the arch steel structure two (3) and the arch steel structure
One (2) structure having the same, the arch steel structure one (2) and described two (3) arc of arch steel structure are same cross-sectional channel steel.
2. a kind of steel structure arch bridge according to claim 1, wherein the pier cap (9) is set to above pier shaft (39), institute
Pier shaft (39) is stated to be set to above basic (40)；
The pier cap (9) is using with a thickness of 0.5m, and span is that the reinforced beam of 8m is arranged, and the pier cap (9) is made into
Cornice formula, pier cap (9) shape use rectangle top cap；
The pier shaft (39) uses concrete solid structure, and concrete strength is not less than C30, the top surface size of the pier shaft (39)
It is the width that the pier cap (9) vertical, horizontal size subtracts cornice；The height of the pier shaft (39) is set in 5m, the pier shaft (39)
It is set to 90 degree of straight slopes；
The arch steel structure one (2) and two (3) main structure steel material of arch steel structure are Q235B steel.
3. a kind of steel structure arch bridge according to claim 1, wherein the side steel structure (10) is symmetrical arranged, the side
The first installation site, the second installation site, third installation site are symmetrically disposed on side steel structure (10) from outside to inside.
4. a kind of steel structure arch bridge according to claim 1, wherein by seven above described one (2) section of arch steel structure
The welding mutually of channel steel (12) head and the tail, forms an arch cross section profile, and the channel steel (12) uses 10# steel pipe；
Six uniformly distributed positions are arranged vertical channel steel (20) vertically on the arch cross section profile, the one of the vertical channel steel (20)
It holds and is welded with the arch cross section profile of composition by junction steel plate two (19), the other end welding of the vertical channel steel (20)
Bottom channel steel one (13), the bottom channel steel one (13) are horizontally disposed.
5. a kind of steel structure arch bridge according to claim 4, wherein horizontal Welding flat steel at the node of the channel steel (12)
One (14)；
A diagonal brace channel steel (21) is arranged between the every two vertical channel steels (20)；
Arch cross section profile middle position is equipped with junction steel plate one (15), and two of channel steel (12) middle position are vertical
Arranged crosswise diagonal brace channel steel (21) between channel steel (20), the diagonal brace channel steel (21) of the arranged crosswise and the band steel one (14) are logical
The junction steel plate one (15) for crossing center carries out structural strengthening.
6. a kind of steel structure arch bridge according to claim 3, wherein (10) the first installed position cloth of side steel structure
End connection steel structure (16) is set, end connection steel structure (16) distinguishes horizontally disposed top square tube (24) and lower part side above and below
It manages (25)；
Diagonal brace square tube (23) are set between the top square tube (24) and the lower square tube (25), every two diagonal brace square tubes
(23) interlaced arrangement, the top square tube (24), lower square tube (25), diagonal brace square tube (23) are carried out using 90 degree of angle between
Junction is fixedly connected using rectangle junction steel plate (22).
7. a kind of steel structure arch bridge according to claim 3, wherein the second installed position of the side steel structure (10)
Arrangement connection steel structure one (17), the connection steel structure one (17) are weld grid structure；
The connection steel structure one (17) distinguishes horizontally disposed top channel steel one (30) and bottom channel steel two (28), the company above and below
It connects steel structure one (17) middle position and welds a vertically arranged channel steel, the vertically arranged channel steel two sides are respectively with cross
Form Welding flat steel two (27), the band steel two (27) by junction steel plate three (26) and semicircle junction steel plate one (29) progress
The structural strengthening of upper and lower weld.
8. a kind of steel structure arch bridge according to claim 3, wherein the third installed position of the side steel structure (10)
Arrangement connection steel structure two (18), the connection steel structure two (18) generally weld grid structure；
The connection steel structure two (18) distinguishes horizontally disposed top channel steel two (35) and bottom channel steel three (33), the company above and below
It connects steel structure two (18) middle position and welds a vertically arranged channel steel, the vertically arranged channel steel two sides are respectively with cross
Form Welding flat steel three (32), the top channel steel two (35), bottom channel steel three (33) pass through connection between band steel three (32)
Steel plate four (31) and semicircle junction steel plate two (34) carry out the structural strengthening of upper and lower weld.
9. a kind of steel structure arch bridge according to claim 1, wherein the outline border top of the arch steel structure one (2) is uniform
Arrange top steel structure (11) at 5, the top steel structure (11) distinguishes horizontally disposed top band steel (36) and lower part band steel above and below
(37), steel network forming frame (38) are welded between the top band steel (36) and lower part band steel (37).
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|---|---|
| CN109137715B (en) | 2021-08-10 |
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