CN113931664A - Assembled arch steel construction - Google Patents
Assembled arch steel construction Download PDFInfo
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- CN113931664A CN113931664A CN202111202953.2A CN202111202953A CN113931664A CN 113931664 A CN113931664 A CN 113931664A CN 202111202953 A CN202111202953 A CN 202111202953A CN 113931664 A CN113931664 A CN 113931664A
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- arch
- straight wall
- steel
- arched
- concrete
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 115
- 239000010959 steel Substances 0.000 title claims abstract description 115
- 238000010276 construction Methods 0.000 title abstract description 36
- 230000003014 reinforcing effect Effects 0.000 claims description 22
- 238000000034 method Methods 0.000 abstract description 21
- 239000000178 monomer Substances 0.000 abstract description 14
- 238000009434 installation Methods 0.000 abstract description 10
- 238000009415 formwork Methods 0.000 abstract description 6
- 229910001294 Reinforcing steel Inorganic materials 0.000 abstract description 4
- 238000009412 basement excavation Methods 0.000 description 4
- 238000005336 cracking Methods 0.000 description 3
- 238000005728 strengthening Methods 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007123 defense Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000009941 weaving Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/14—Lining predominantly with metal
- E21D11/18—Arch members ; Network made of arch members ; Ring elements; Polygon elements; Polygon elements inside arches
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/04—Lining with building materials
- E21D11/10—Lining with building materials with concrete cast in situ; Shuttering also lost shutterings, e.g. made of blocks, of metal plates or other equipment adapted therefor
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/14—Lining predominantly with metal
- E21D11/15—Plate linings; Laggings, i.e. linings designed for holding back formation material or for transmitting the load to main supporting members
- E21D11/152—Laggings made of grids or nettings
Abstract
The invention discloses an assembled arch-shaped steel structure. The arch monomer is set into two standard parts of an arch part and a straight wall part and can be installed in a matching way, when the arch monomer is installed in a tunnel, only the two straight wall parts are respectively installed at two ends of the arch part, after the installation is finished, concrete is poured into a cavity formed by the arch part, the straight wall parts and a wall body, after the concrete is solidified, the arch monomer and the concrete form an integrated supporting structure, the supporting strength of the arch monomer is improved, compared with the method that the concrete is poured after reinforcing steel bars are woven by adopting a manual formwork on site, the method only needs to install the processed arch part and the straight wall parts outside the tunnel in a matching way, the concrete can be poured, the technical difficulty of the traditional construction is reduced, and mechanical construction can be adopted when the arch part and the straight wall parts are installed in a matching way, not only can the labor intensity of workers be reduced, but also the construction efficiency can be improved, the construction period is shortened, and the safety of workers in a severe operation environment is ensured.
Description
Technical Field
The invention relates to the field of tunnel construction, in particular to an assembled arched steel structure.
Background
In recent years, the investment of the country to the traffic infrastructure industry is still in a high-speed development stage, the status and the function of tunnels and underground engineering which are important components of traffic infrastructure are gradually highlighted, and the tunnel and underground engineering is widely applied to a plurality of fields of traffic logistics, municipal equipment, water conservancy and hydropower, resource storage, mineral development, national defense construction and the like. Meanwhile, with the continuous improvement of social and economic levels, the rapid increase of urban population, complex international situation and surrounding situation of China, the construction of tunnels and underground engineering in China is extraordinarily prominent, the achievement of making the world attract attention is achieved, the construction scale, the construction speed, the quantity of engineering which is put into operation and the like are all world-first, and the technical level also spans into the world leading ranks.
The tunnel construction is underground comprehensive operation construction integrating multiple processes and multiple work station combination, has narrow operation space, complex and arduous construction process, needs to complete a large amount of high-standard and high-requirement field operation in a short time, and has considerable construction difficulty. In the existing tunnel hair hole excavation process, the tunnel hair hole excavation method is influenced by hydrogeological conditions, and a cavern structure in a tunnel needs to be supported and shaped in a certain mode so as to avoid the problems of collapse, cracks and the like in the tunnel construction process.
However, in the existing tunnel rough hole excavation process, the subsequent lining still mainly adopts the manual formwork to weave the steel bars and then pour the concrete, and the construction technology of the method has the disadvantages of high difficulty, complex construction, long construction period, severe field operation environment, high labor intensity and various installation hidden dangers.
Disclosure of Invention
In view of the above, the embodiment of the invention provides an assembled arch-shaped steel structure, which is used for solving the problem caused by the mode that the lining is formed by weaving reinforcing steel bars through a manual formwork in the existing tunnel rough hole excavation process and then concrete is poured.
In order to achieve the above purpose, the embodiments of the present invention provide the following technical solutions:
an assembled arch steel structure comprising: an arch-shaped single body;
the arched single body is formed by matching and installing an arched piece and straight wall pieces, and the two straight wall pieces are respectively installed at two ends of the arched piece;
the arch-shaped piece and the straight wall piece are installed in the tunnel in a matched mode, the arch-shaped piece and the straight wall piece can form a cavity filled with concrete with the wall, and after the concrete filled in the cavity is solidified, the arch-shaped single bodies and the concrete are integrated.
Preferably, the arch comprises: a circular arc member and two end members;
the end piece is formed by connecting a straight part and an arc part;
the first end of the arc member is connected to the arc portion of one end member and the second end is connected to the arc portion of the other end member.
Preferably, the arc member is connected to the arc portion through an arch-shaped block connecting plate, a bolt and a washer.
Preferably, the arc member includes: a first arcuate panel, a plurality of first steel bars, and a plurality of first reinforcing bars;
a plurality of first steel bars fixed to a first surface of the first arched panel along a first direction, and a plurality of first reinforcing ribs fixed to the first surface of the first arched panel in a staggered manner with the plurality of first steel bars;
the end piece includes: a second arcuate panel, a second plurality of bars, and a second plurality of ribs;
the second steel bars are fixed on the first surface of the second arched panel along the first direction, and the second reinforcing ribs and the second steel bars are fixed on the first surface of the second arched panel in a staggered manner.
Preferably, the first steel strip and/or the second steel strip are T-shaped steel.
Preferably, the web of the first steel bar and/or the second steel bar is provided with a plurality of concrete pouring holes.
Preferably, the straight wall member includes: a vertical wall panel, a plurality of third steel bars and a plurality of horizontal grills;
a plurality of the third billet is vertical to be fixed in the first face of straight wall panel, and is a plurality of the horizontal grid is fixed in with a plurality of the third billet is crisscross the first face of straight wall panel.
Preferably, the third steel strip is T-shaped steel.
Preferably, the web plate of the third steel bar is provided with a plurality of concrete pouring holes.
Preferably, the method further comprises the following steps: the arched end connecting plates are arranged at the two ends of the arched piece, and the straight wall end connecting plates are arranged at the connecting ends of the straight wall pieces;
the arch-shaped end connecting plate and the straight wall end connecting plate are both provided with screw holes for bolt connection.
Preferably, the arched end connecting plate and the straight wall end connecting plate are both provided with pin shaft holes for positioning pin shafts.
Preferably, the lifting lug is arranged on the arch part and/or the straight wall part.
Preferably, the number of the arch monomers is multiple, the arch monomers are arranged along the tunnel, the heights of the two adjacent arch monomers are the same, and the heights of the straight wall parts of the two adjacent arch monomers are different.
Preferably, two adjacent straight parts are connected by an inter-block connecting part.
The application discloses an assembled arch steel structure, an arch monomer is set into two standard parts of an arch part and a straight wall part, the assembled arch steel structure can be formed by matching and installing, when the assembled arch steel structure is required to be installed in a tunnel, only the two straight wall parts are required to be respectively installed at two ends of the arch part, after the assembled arch part and the straight wall part are installed, concrete is poured into a cavity formed by the arch part and the straight wall part and a wall body, after the concrete poured into the cavity is solidified, the arch monomer can form an integrated supporting structure with the concrete, the supporting strength of the arch monomer is improved, compared with the prior art that the concrete is poured after reinforcing steel bars are woven by adopting a manual formwork on site, the assembled arch steel structure only needs to match and install the arch part and the straight wall part which are processed outside the tunnel in the tunnel, the technical difficulty of traditional construction is reduced, and mechanical construction can be adopted when the arch part and the straight wall part are matched and installed, not only can reduce workman's intensity of labour, can also improve the efficiency of construction, shortened and construction cycle to guarantee the safety of workman under abominable operational environment.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a schematic structural diagram of an assembled arch-shaped steel structure according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a straight wall member according to an embodiment of the present invention;
FIG. 3 is a schematic structural view of an arch provided by an embodiment of the present invention;
FIG. 4 is a front view of an arch provided by an embodiment of the present invention;
FIG. 5 is an enlarged view of a portion of FIG. 3 at I according to an embodiment of the present invention;
fig. 6 is a partial enlarged view of the portion II in fig. 1 according to an embodiment of the present invention.
Wherein, straight wall spare 1, straight wall panel 11, third billet 12, horizontal grid 13, straight wall end connecting plate 14, strengthening rib 15, arch-shaped piece 2, circular arc 21, first arch panel 211, first billet 212, first strengthening rib 213, end piece 22, second arch panel 221, second billet 222, second strengthening rib 223, arch piecing connecting plate 23, bolt 24, packing ring 25, arch end connecting plate 26, lug 3, piecing connecting piece 4, shrouding 5, round pin axle 6 between piecing.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In this application, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
An embodiment of the present invention provides an assembled arch steel structure, and referring to fig. 1 to 6, fig. 1 is a schematic structural view of the assembled arch steel structure, where the assembled arch steel structure includes: an arch-shaped single body;
the arched single body is formed by matching and installing an arched piece 2 and straight wall pieces 1, and the two straight wall pieces 1 are respectively installed at two ends of the arched piece 2;
the arch-shaped part 2 and the straight wall part 1 are installed in the tunnel in a matched mode, the arch-shaped part 2 and the straight wall part 1 can form a cavity filled with concrete with the wall, and after the concrete filled in the cavity is solidified, the arch-shaped single bodies and the concrete are integrated.
It should be noted that, the arch-shaped single body is set into two standard components of the arch-shaped member 2 and the straight wall member 1, and can be installed by matching, when it is installed in the tunnel, only two straight wall members 1 need to be installed at two ends of the arch-shaped member 2 respectively, and after the installation is completed, the arch-shaped member 2 and the straight wall member 1 can form a cavity filled with concrete with the wall, after the concrete filled in the cavity is solidified, the arch-shaped single body can form an integrated supporting structure with the concrete, and also the overall strength of the arch-shaped structure is improved, compared with the prior art that the concrete is poured after reinforcing steel bars are woven by manual formwork support, the arch-shaped member 2 and the straight wall member 1 processed outside the tunnel only need to be installed in the tunnel by matching, the concrete can be poured, the technical difficulty of the traditional construction is reduced, and the mechanized construction can be adopted when the arch-shaped member and the straight wall member are installed in matching, not only can reduce workman's intensity of labour, can also improve the efficiency of construction, shorten construction cycle to guarantee the safety of workman under abominable operational environment.
Further, the arch 2 comprises: a circular arc member 21 and two end members 22;
the end piece 22 is formed by connecting a straight portion and an arc portion;
the arcuate member 21 is connected at a first end to the arcuate portion of one end member 22 and at a second end to the arcuate portion of the other end member 22.
It should be noted that, the arch-shaped member 2 is provided with the arc-shaped member 21 and the two end members 22, so that the vehicle can be conveniently transported to the tunnel for installation, and when the vehicle is installed, the complete arch-shaped member 2 can be assembled only by connecting the first end of the arc-shaped member 21 with the arc part of one end member 22 and connecting the second end with the arc part of the other end member 22, thereby effectively reducing the transportation difficulty and the installation difficulty of the arch-shaped member 2 and improving the construction efficiency.
Specifically, the arc member 21 is connected to the arc portion through an arch-shaped block connecting plate 23, a bolt 24, and a washer 25.
It should be noted that, the arc piece 21 is connected to the arc portion through the arch-shaped block connecting plate 23, the bolt 24 and the washer 25, which not only can ensure the connection strength of the arc portion between the arc piece 21 and the end piece 22, but also can improve the convenience of installation.
It should be noted that the connection manner of the arc piece 21 and the arc portion is not limited to the arch-shaped block connecting plate 23, the bolt 24, and the washer 25, and other connection manners such as welding may be used.
Further, the circular arc member 21 includes: a first arched panel 211, a plurality of first steel bars 212, and a plurality of first reinforcing bars 213;
a plurality of first steel bars 212 fixed to a first surface of the first arched panel 211 in a first direction, a plurality of first reinforcing ribs 213 fixed to the first surface of the first arched panel 211 alternately with the plurality of first steel bars 212;
the end piece 22 comprises: a second arcuate panel 221, a second plurality of bars 222 and a second plurality of ribs 223;
a plurality of second steel bars 222 are fixed to the first surface of the second arched panel 221 in the first direction, and a plurality of second reinforcing ribs 223 are fixed to the first surface of the second arched panel 221 to be staggered with the plurality of second steel bars 222.
It should be noted that, a plurality of first steel bars 212 are fixed in the first surface of the first arched panel 211 along the first direction, a plurality of first reinforcing ribs 213 and a plurality of first steel bars 212 are fixed in the first surface of the first arched panel 211 in a staggered manner, and after concrete is poured, the concrete is combined with the first reinforcing ribs 213 and the first steel bars 212, so that the arc member 21 has higher bearing capacity, the strength and the crack resistance of the arc member 21 are improved, and the overall strength of the tunnel is further ensured.
And a plurality of second steel bars 222 are fixed to the first surface of the second arched panel 221 along the first direction, a plurality of second reinforcing ribs 223 and a plurality of second steel bars 222 are fixed to the first surface of the second arched panel 221 in a staggered manner, and after concrete is poured, the concrete is combined with the second reinforcing ribs 223 and the second steel bars 222, so that the end piece 22 has higher bearing capacity, the strength and the crack resistance of the end piece 22 are improved, and the overall strength of the tunnel is further ensured.
Preferably, the first steel bar 212 is fixed to the first surface of the first arched panel 211 at a first predetermined interval, and the plurality of first reinforcing ribs 213 are fixed to the first surface of the first arched panel 211 at a second predetermined interval.
It should be noted that, the first steel bar 212 is fixed to the first surface of the first arched panel 211 according to the first preset distance, and the plurality of first reinforcing ribs 213 are fixed to the first surface of the first arched panel 211 according to the second preset distance, after concrete is poured, the concrete is combined with the first steel bar 212 and the first reinforcing ribs 213, so that the structure of the arc piece 21 is more uniform, the bearing capacity is higher, the strength and the crack resistance of the arc piece 21 are improved, and the overall strength of the tunnel is further ensured.
Preferably, the second steel bar 222 is fixed to the first surface of the second arched panel 221 at a first predetermined interval, and the plurality of second reinforcing ribs 223 is fixed to the first surface of the second arched panel 221 at a second predetermined interval.
It should be noted that, the second steel bar 222 is fixed to the first surface of the second arched panel 221 at a first preset distance, and the plurality of second reinforcing ribs 223 are fixed to the first surface of the second arched panel 221 at a second preset distance, and after concrete is poured, the concrete is combined with the second steel bar 222 and the second reinforcing ribs 223, so that the end piece 22 has a more uniform structure and higher bearing capacity, the strength and crack resistance of the end piece 22 are improved, and the overall strength of the tunnel is further ensured.
Specifically, first steel bar 212 and second steel bar 222 are T-section steel.
It should be noted that the first steel bar 212 may be a T-shaped steel, or an i-shaped steel, and in this application, the first steel bar 212 is preferably a T-shaped steel, and is connected to the first panel through a web of the T-shaped steel, and when the arched steel structure is installed in the tunnel, a wing plate of the T-shaped steel contacts the wall, and a cavity formed by the wall and the first panel is used for pouring concrete;
the second billet 222 can be T shaped steel, also can be the I-steel, and the preferred second billet 222 of this application is T shaped steel, connects on the second panel through the web of T shaped steel, and when arch steel construction installed in the tunnel, the cavity that wall body and second panel formed was used for concreting.
Furthermore, a plurality of concrete pouring holes are formed in the web plate of the first steel bar and/or the second steel bar.
It should be noted that, a plurality of concrete pouring holes are formed in the web plate of the first steel bar and/or the second steel bar, so that the concrete can be dispersed all around through the concrete pouring holes in the pouring process, and after the concrete is solidified, the concrete can be integrated with the first steel bar and/or the second steel bar, and further the integral supporting strength of the arch structure is improved.
Further, the vertical wall member 1 includes: a vertical wall panel 11, a plurality of third steel bars 12 and a plurality of horizontal grates 13;
a plurality of third steel bars 12 are vertically fixed to the first surface of the straight wall panel 11, and a plurality of horizontal grates 13 are fixed to the first surface of the straight wall panel 11 to be staggered with the plurality of third steel bars 12.
It should be noted that, a plurality of third billet 12 are vertically fixed in the first face of straight-wall panel 11 to being fixed in a plurality of horizontal grid 13 and the crisscross first face of straight-wall panel 11 that is fixed in of a plurality of third billet 12, through concreting after, concrete and horizontal grid 13 and third billet 12 combine, make straight wall spare 1 have higher bearing capacity, promoted the intensity and the anti-cracking performance of straight wall spare 1, and then guarantee the bulk strength in tunnel.
Preferably, the third steel bars 12 are fixed to the first surface of the vertical wall panel 11 at first predetermined intervals, and the plurality of horizontal grids 13 are fixed to the first surface of the vertical wall panel 11 at second predetermined intervals.
It should be noted that, be fixed in the first face of straight-wall panel 11 with third billet 12 according to first predetermined interval to and be fixed in the first face of straight-wall panel 11 with a plurality of horizontal grid 13 according to second predetermined interval, through concreting after, concrete and third billet 12 and horizontal grid 13 combine, make the structure of straight wall spare 1 more even, have higher bearing capacity, promoted the intensity and the anti-cracking performance of straight wall spare 1, and then guarantee the bulk strength in tunnel.
Specifically, the third steel bar 12 is a T-shaped steel.
It should be noted that the third steel bar 12 can be T-shaped steel, and can also be i-shaped steel, and the third steel bar 12 is preferably T-shaped steel in this application, but the third steel bar 12 is not limited to T-shaped steel only, and this application is connected on the straight wall panel 11 through the web of T-shaped steel, and when the straight wall steel structure is installed in the tunnel, the cavity that wall body and straight wall panel 11 formed is used for concreting.
Furthermore, a plurality of concrete pouring holes are formed in the web plate of the third steel bar.
It should be noted that, offer a plurality of concrete pouring holes through the web at the third billet, can make the concrete in the course of pouring, the concrete is through concrete pouring hole to scattering all around to after the concrete solidifies, the concrete can form wholly with the third billet, and then improves the holistic support intensity of domes.
Further, assembled arch steel construction still includes: the arch end connecting plates 26 arranged at the two ends of the arch-shaped member 2 and the straight wall end connecting plates 14 arranged at the connecting ends of the straight wall member 1;
the arched end connecting plate 26 and the straight wall end connecting plate 14 are both provided with screw holes for connecting the bolts 24.
It should be noted that, by arranging the arch end connecting plates 26 at the two ends of the arch-shaped member 2 and the straight wall end connecting plates 14 at the connecting ends of the straight wall member 1, when the installation is performed, the screw holes of the arch end connecting plates 26 are aligned with the screw holes on the straight wall end connecting plates 14, and then the connection is performed through the bolts 24, so that the connection strength between the arch-shaped member 2 and the straight wall member 1 is ensured, and the method is low in construction difficulty and high in efficiency.
Preferably, a third reinforcing rib is arranged at the joint of the straight wall member 1 and the straight wall end connecting plate 14.
It should be noted that, the third reinforcing rib is arranged at the joint of the straight wall member 1 and the straight wall end connecting plate 14, so that the connection strength of the straight wall member 1 and the straight wall end connecting plate 14 can be ensured, and the connection strength of the straight wall member 1 and the arch member 2 can be ensured.
Further, the arched end connecting plate 26 and the straight wall end connecting plate 14 are both provided with pin shaft holes for positioning the pin shafts 6.
It should be noted that, the straight wall end connecting plate 14 of the straight wall member 1 and the arch end connecting plate 26 of the arch member 2 can be aligned conveniently by a worker by arranging the pin shaft holes for positioning the pin shafts 6 on the arch end connecting plate 26 and the straight wall end connecting plate 14, so that the installation efficiency of the straight wall member 1 and the arch member 2 is improved.
Further, the assembled arch steel structure also comprises lifting lugs 3 arranged on the arch-shaped part 2 and/or the straight wall part 1.
It should be noted that, by arranging the lifting lugs 3 on the arch-shaped part 2 and/or the straight wall part 1, equipment can be used for lifting conveniently, and further, construction by workers is facilitated.
Specifically, arch monomer quantity is a plurality of, and a plurality of arch monomers set up along the tunnel, and two adjacent arch monomers are highly the same, and wherein, two adjacent free straight wall spare 1 height differences of arch.
It should be noted that, the heights of the two adjacent arch-shaped single bodies are the same, and the heights of the straight wall pieces 1 of the two adjacent arch-shaped single bodies are different, so that the straight wall pieces 1 can be prevented from moving relatively between blocks when being stressed in the length direction, and the rigidity of the straight wall pieces 1 is effectively ensured.
Preferably, be equipped with shrouding 5 between two adjacent straight wall spare 1, shrouding 5 has seted up a plurality of connecting holes.
It should be noted that, by arranging the sealing plate 5 between two adjacent straight wall members 1 and forming a plurality of connecting holes in the sealing plate 5, the horizontal grids 13 of the two straight wall members 1 can be connected by bolts, so as to ensure the connecting strength between the two straight wall members 1.
Further, adjacent two straight members are connected by an inter-block connecting member 4.
It should be noted that, two adjacent straight components are connected through the inter-block connecting member 4, so that the two arched single bodies can be positioned between the two blocks when being installed together, and the installation efficiency between the arched single bodies is effectively improved.
Based on the technical scheme provided above, the invention has the following beneficial effects.
1. This application is compared in prior art, has cancelled matters such as artifical formwork in building site, establishment reinforcing bar, can satisfy the structural requirement under the multiple abominable engineering condition, realizes mechanized construction simultaneously, has alleviateed workman's intensity of labour, has effectively solved the potential safety hazard problem that exists under the abominable engineering environment.
2. With arch steel construction modular design, production, guaranteed commonality and replaceability between the module, promoted the installation effectiveness, shortened construction cycle.
3. The whole stress that steel construction and concrete structure formed is more even, has higher bearing capacity, has promoted holistic intensity and anti-cracking performance.
The embodiments in the present specification are described in a progressive manner, and the same and similar parts among the embodiments are referred to each other, and each embodiment focuses on the differences from the other embodiments. In particular, the system or system embodiments are substantially similar to the method embodiments and therefore are described in a relatively simple manner, and reference may be made to some of the descriptions of the method embodiments for related points. The above-described system and system embodiments are only illustrative, wherein the units described as separate parts may or may not be physically separate, and the parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment. One of ordinary skill in the art can understand and implement it without inventive effort.
Those of skill would further appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, computer software, or combinations of both, and that the various illustrative components and steps have been described above generally in terms of their functionality in order to clearly illustrate this interchangeability of hardware and software. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (14)
1. An assembled arch steel structure, comprising: an arch-shaped single body;
the arched single body is formed by matching and installing an arched piece and straight wall pieces, and the two straight wall pieces are respectively installed at two ends of the arched piece;
the arch-shaped piece and the straight wall piece are installed in the tunnel in a matched mode, the arch-shaped piece and the straight wall piece can form a cavity filled with concrete with the wall, and after the concrete filled in the cavity is solidified, the arch-shaped single bodies and the concrete are integrated.
2. The fabricated arch steel structure of claim 1, wherein the arch comprises: a circular arc member and two end members;
the end piece is formed by connecting a straight part and an arc part;
the first end of the arc member is connected to the arc portion of one end member and the second end is connected to the arc portion of the other end member.
3. The fabricated arch steel structure of claim 2, wherein the arc pieces are connected to the arc part by arch-shaped block-divided connection plates, bolts, and washers.
4. The fabricated arch steel structure of claim 2, wherein the arc member comprises: a first arcuate panel, a plurality of first steel bars, and a plurality of first reinforcing bars;
a plurality of first steel bars fixed to a first surface of the first arched panel along a first direction, and a plurality of first reinforcing ribs fixed to the first surface of the first arched panel in a staggered manner with the plurality of first steel bars;
the end piece includes: a second arcuate panel, a second plurality of bars, and a second plurality of ribs;
the second steel bars are fixed on the first surface of the second arched panel along the first direction, and the second reinforcing ribs and the second steel bars are fixed on the first surface of the second arched panel in a staggered manner.
5. The fabricated arch steel structure of claim 2, wherein the first steel bar and the second steel bar are both T-section steel.
6. The assembled arched steel structure of claim 5, wherein the web of the first steel bar and/or the second steel bar is provided with a plurality of concrete pouring holes.
7. The fabricated arch steel structure of claim 1, wherein the straight wall member comprises: a vertical wall panel, a plurality of third steel bars and a plurality of horizontal grills;
a plurality of the third billet is vertical to be fixed in the first face of straight wall panel, and is a plurality of the horizontal grid is fixed in with a plurality of the third billet is crisscross the first face of straight wall panel.
8. The fabricated arch steel structure of claim 7, wherein the third steel bar is a T-bar.
9. The fabricated arch-shaped steel structure of claim 1, wherein the web of the third steel bar is provided with a plurality of concrete pouring holes.
10. The fabricated arch steel structure of claim 1, further comprising: the arched end connecting plates are arranged at the two ends of the arched piece, and the straight wall end connecting plates are arranged at the connecting ends of the straight wall pieces;
the arch-shaped end connecting plate and the straight wall end connecting plate are both provided with screw holes for bolt connection.
11. The assembled arched steel structure of claim 10, wherein the arched end connection plate and the straight wall end connection plate are each provided with a pin shaft hole for positioning a pin shaft.
12. The fabricated arch steel structure of claim 1, further comprising a lifting lug provided to the arch and/or the right-wall member.
13. The assembled arch steel structure of claim 1, wherein the number of the arch units is multiple, the multiple arch units are arranged along a tunnel, the heights of two adjacent arch units are the same, and the heights of the straight wall members of two adjacent arch units are different.
14. The fabricated arch steel structure of claim 1, wherein adjacent two of the straight members are connected by an inter-block connection.
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