CN112030709A - Arch ring bottom support device and installation method thereof - Google Patents
Arch ring bottom support device and installation method thereof Download PDFInfo
- Publication number
- CN112030709A CN112030709A CN202010960516.6A CN202010960516A CN112030709A CN 112030709 A CN112030709 A CN 112030709A CN 202010960516 A CN202010960516 A CN 202010960516A CN 112030709 A CN112030709 A CN 112030709A
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- arch ring
- wood
- arc
- battens
- wedge
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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
-
- 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
-
- 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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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention discloses an arch ring bottom supporting device and an installation method thereof, which comprises a bracket, a top support, H-shaped steel, a skid block, an arc-shaped pipe and a bottom template which are arranged along the width and span directions of an arch ring, wherein the arc-shaped pipe and the bottom template are matched with the radian of the arch ring, the lower part of the top support is a mandril in threaded fit with the top end of the bracket, the upper part of the top support is a supporting plate with a baffle, the same row of supporting plates distributed along the width direction of the arch ring are supported with a full-length lower wood block and a full-length wood blocking block, the H-shaped steel is distributed along the lower wood block and a web plate is supported on the lower wood block, the H-shaped steel is clamped between the two wood blocking blocks and limited by the baffle, the web plate of the same row of H-shaped steel distributed along the width direction of the arch ring is supported with a full-length upper wood block, the arc-shaped pipe is distributed along the width direction of the arch ring and the support attached along the line is fixed on the wedge-shaped, the bottom template is paved and fixed on the battens. The device has good stability.
Description
Technical Field
The invention belongs to the field of municipal engineering construction, and particularly relates to an arch ring bottom supporting device and an installation method thereof.
Background
The arch ring is the important part that is used for load and conducting power in the bridge major structure, when the arch ring is poured and is constructed, arch ring dead weight, construction load and wind load need be born to arch ring support system, especially the arch ring of large-span or large-width, the load that comes from the arch ring is directly born to arch ring bottom sprag, therefore its stability is especially important, and when arch ring pile-up preloading, the sand bag is piled up everywhere about the arch ring, the produced atress of different radians is unbalanced (both sides power is greater than the middle power), if arch ring bottom sprag stability is not high, also can increase the safety risk.
Disclosure of Invention
The invention aims to provide an arch ring bottom supporting device and an installation method thereof, which can uniformly disperse the bottom load of an arch ring to the ground, improve the stability of the arch ring bottom support and solve the risk in the process of prepressing or concrete pouring.
The technical scheme adopted by the invention is as follows:
an arch ring bottom supporting device comprises supports arranged along the width and span direction of an arch ring, a top support, H-shaped steel, a skid block and an arc-shaped pipe and a bottom template which are matched with the radian of the arch ring, wherein the lower part of the top support is a mandril in threaded fit with the top end of the supports, the upper part of the top support is a supporting plate with a baffle, a through-long lower wood block and a through-long stop wood block are supported on the same row of supporting plates distributed along the width direction of the arch ring, the H-shaped steel is distributed along the lower wood block and a web plate is supported on the lower wood block, the H-shaped steel is clamped between the two stop wood blocks and the stop wood block is limited by the baffle, a through-long upper wood block is supported on the web plate of the same row of H-shaped steel distributed along the width direction of the arch ring, a through-long wedge wood bar is supported on the upper wood block, the arc-shaped pipe is distributed along the width direction of the arch ring and is fixed on the wedge wood bar along the bridge, the skid block is distributed along the bridge direction and, the bottom template is paved and fixed on the battens.
Furthermore, the contact surface of the wedge batten and the arc-shaped pipe is an inclined surface.
Furthermore, the wedge wood strip is formed by cutting one corner of a wood square.
Furthermore, the arc-shaped pipe is bound and fixed with the cuneate wood strip, and the backing wood square is bound and fixed with the arc-shaped pipe.
Furthermore, the arc-shaped pipe is formed by bending a steel pipe.
Further, the bracket adopts a bowl buckle type bracket.
Furthermore, the bottom template is made of a faced wood plywood.
The installation method of the arch ring bottom supporting device comprises the following steps:
s1, arranging the brackets along the width and span direction of the arch ring, and installing the brackets at a proper height;
s2, connecting the mandril at the lower part of the jacking support to the top end of the bracket through threads, and adjusting the mandril according to the height of the arch ring to reserve a certain mounting space for the upper part;
s3, placing through lower battens and wood blocking battens on the same row of supporting plates distributed in the width direction of the arch ring, wherein the wood blocking battens are prefabricated or manufactured on site, controlling the width of the wood blocking battens and ensuring that the wood blocking battens can be clamped between the H-shaped steel flange plate and the baffle;
s4, inserting the H-shaped steel from the wood blocking sides at two sides downwards until the web plate supports the lower wood, and distributing the H-shaped steel along the lower wood;
s5, placing a wood feeding square with a full length on a web plate of the H-shaped steel distributed in the width direction of the arch ring in the same row;
s6, manufacturing wedge battens on site according to the contact positions of the wedge battens and the arc-shaped pipe, ensuring that the wedge battens can be attached to the arc-shaped pipe, and placing the wedge battens on an upper batten;
s7, fixing the supports attached to the arc pipes on a wedge batten, and distributing the arc pipes along the width direction of the arch ring, wherein the arc pipes are prefabricated or manufactured on site;
s8, fixing the skid square support on the arc-shaped pipe and ensuring that the skid square is in the width direction of the arch ring and is distributed along the bridge direction;
and S9, laying and fixing the bottom template on the battens.
Furthermore, the arc-shaped pipe is directly manufactured according to the radian of the arch ring or according to the elevation of the arch ring on different supports.
The invention has the beneficial effects that:
the load of hunch circle bottom passes through the direct evenly distributed of die bed board and gives the netted bearing structure of arc pipe and the formation of filler flitch, because the arc pipe laminating supports on the wood wedge strip, consequently, netted bearing structure's load can give each support through the whole even downward distribution of wood wedge strip, ground is given in final dispersion, the device can be with hunch circle bottom load evenly distributed to ground, the stability of hunch circle bottom sprag has been promoted, avoid the excessive concentration of load or transmission off normal, the risk of pre-compaction or concrete placement in-process has been solved. The combination of the upper batten and the lower batten plays a role of heightening the wedge wood strips on one hand, and can evenly distribute the load to the supports along the line on the other hand, and the supports and the wedge wood strips are separated from each other, so that the movement and the toppling can be avoided, and the stability is high; the setting of H shaped steel can increase the rigidity of flitch and flitch down on the one hand, and on the other hand can carry out spacingly through flange board to last flitch and flitch down.
Drawings
Fig. 1 is a partial schematic view of an arch ring bottom support device in an embodiment of the invention (the direction perpendicular to the drawing is the arch ring width direction, and the horizontal direction in the drawing is the arch ring span direction).
In the figure: 1-a scaffold; 2-a top rod; 3-a supporting plate; 4-a baffle plate; 5-lower batten; 6-wood blocking; 7-H section steel; 8-adding wood; 9-wedge batten; 10-an arc-shaped pipe; 11-mataire; 12-bottom template.
Detailed Description
The invention is further described below with reference to the figures and examples.
As shown in figure 1, the arch ring bottom supporting device comprises a support, a top support, H-shaped steel, a skid block, an arc-shaped pipe and a bottom template which are arranged along the width and span direction of an arch ring, wherein the arc-shaped pipe and the bottom template are matched with the radian of the arch ring, the lower part of the top support is a mandril in threaded fit with the top end of the support, the upper part of the top support is a supporting plate with a baffle, the same row of supporting plates which are distributed along the width direction of the arch ring are supported with a full-length lower wood block and a full-length wood block, the H-shaped steel is distributed along the lower wood block and a web plate is supported on the lower wood block, the H-shaped steel is clamped between the two wood block and the wood block is limited by the baffle, the full-length upper wood block is supported on the web plate of the same row of H-shaped steel which is distributed along the width direction of the arch ring, the arc-shaped pipe is distributed along the width direction of the arch ring and the support which is attached along the line is fixed on the wedge-shaped pipe, the skid block is distributed, the bottom template is paved and fixed on the battens.
In this embodiment, the support adopts the formula support is detained to the bowl, connects convenient, fastening, and the good reliability.
In this embodiment, the arc tube is fixed with the ligature of wedgewood strip, and the filler flitch is fixed with the arc tube ligature, and is fixed convenient.
In this embodiment, the arc-shaped pipe is formed by bending a steel pipe, so that the arc-shaped pipe is convenient to manufacture and has a good stress effect.
In the embodiment, the wedge wood strip is formed by cutting one corner of a wood square, and the manufacturing is convenient.
In this embodiment, the contact surface of the wedge batten and the arc tube is an inclined surface, and the radian of the contact part is negligible because the wedge batten and the arc tube are partially in contact.
The installation method of the arch ring bottom supporting device comprises the following steps:
s1, arranging the brackets along the width and span direction of the arch ring, and installing the brackets at a proper height;
s2, connecting the mandril at the lower part of the jacking support to the top end of the bracket through threads, and adjusting the mandril according to the height of the arch ring to reserve a certain mounting space for the upper part;
s3, placing through lower battens and wood blocking battens on the same row of supporting plates distributed in the width direction of the arch ring, wherein the wood blocking battens are prefabricated or manufactured on site, controlling the width of the wood blocking battens and ensuring that the wood blocking battens can be clamped between the H-shaped steel flange plate and the baffle;
s4, inserting the H-shaped steel from the wood blocking sides at two sides downwards until the web plate supports the lower wood, and distributing the H-shaped steel along the lower wood;
s5, placing a wood feeding square with a full length on a web plate of the H-shaped steel distributed in the width direction of the arch ring in the same row;
s6, manufacturing wedge battens on site according to the contact positions of the wedge battens and the arc-shaped pipe, ensuring that the wedge battens can be attached to the arc-shaped pipe, and placing the wedge battens on an upper batten;
s7, fixing the supports attached to the arc pipes on a wedge batten, and distributing the arc pipes along the width direction of the arch ring, wherein the arc pipes are prefabricated or manufactured on site;
s8, fixing the skid square support on the arc-shaped pipe and ensuring that the skid square is in the width direction of the arch ring and is distributed along the bridge direction;
and S9, laying and fixing the bottom template on the battens.
In this embodiment, the arced tube is fabricated directly from the arc of the arch ring or from the elevation of the arch ring on different supports.
Because the sizes of the arch rings are different, the sizes or models of the support, the top support, the lower batten, the wood blocking batten, the H-shaped steel, the upper batten, the wedge batten, the arc-shaped pipe, the wood padding batten and the bottom formwork are selected according to actual conditions, in the embodiment, the diameter of the support is 48mm, the thickness of the support is 3.5mm, the distance between the support and the span direction along the width of the arch ring is 600mm, the diameter of the top rod is 40mm, the length of the top rod is 150mm, the sizes of the upper batten, the lower batten and the wood padding batten are 50mm 80mm, No. 10I-shaped steel is adopted, the distance between the I-shaped steel and the arch ring in the width direction is 600mm, the arc-shaped pipe is a steel pipe with the thickness of 48mm 3.5mm, the distance between the arc-shaped pipe and the arch ring in the width direction is 200mm, the distance between the wood padding squares and the bridge direction is 50mm, and the bottom formwork is made of 15.
In the invention, the load at the bottom of the arch ring is directly and uniformly distributed to the arc-shaped pipe and the net-shaped supporting structure formed by the battens through the bottom template, and the arc-shaped pipe is attached to and supported on the wedge wood strips, so that the load of the net-shaped supporting structure can be integrally and uniformly distributed downwards to each bracket through the wedge wood strips and finally distributed to the ground. The combination of the upper batten and the lower batten plays a role of heightening the wedge wood strips on one hand, and can evenly distribute the load to the supports along the line on the other hand, and the supports and the wedge wood strips are separated from each other, so that the movement and the toppling can be avoided, and the stability is high; the setting of H shaped steel can increase the rigidity of flitch and flitch down on the one hand, and on the other hand can carry out spacingly through flange board to last flitch and flitch down.
It will be understood that modifications and variations can be made by persons skilled in the art in light of the above teachings and all such modifications and variations are intended to be included within the scope of the invention as defined in the appended claims.
Claims (9)
1. An arch ring bottom support device which is characterized in that: the arch ring support comprises supports arranged along the width and span direction of an arch ring, a top support, H-shaped steel, a skid block and an arc pipe and a bottom template which are matched with the radian of the arch ring, wherein the lower part of the top support is an ejector rod in threaded fit with the top end of the supports, the upper part of the top support is a supporting plate with a baffle, the lower wood block and the skid block are supported by the same row of supporting plates distributed along the width direction of the arch ring, the H-shaped steel is distributed along the lower wood block, a web plate is supported on the lower wood block, the H-shaped steel is clamped between the two skid blocks, the skid block is limited by the baffle, the upper wood block is supported by the web plate of the same row of H-shaped steel distributed along the width direction of the arch ring, the upper wood block is supported by the through-length wedge strips, the arc pipe is distributed along the width direction of the arch ring, supports attached along the line are fixed on the wedge strips, the skid block sides are distributed along the bridge direction and fixed on the arc pipe along the line, the bottom template is paved and fixed on the battens.
2. The arch ring bottom support apparatus of claim 1, wherein: the contact surface of the wedge batten and the arc tube is an inclined surface.
3. The arch ring bottom support apparatus of claim 1, wherein: the wedge wood strip is formed by cutting one corner of a batten.
4. The arch ring bottom support apparatus of claim 1, wherein: the arc-shaped pipe is bound and fixed with the cuneate wood strip, and the padder is bound and fixed with the arc-shaped pipe.
5. The arch ring bottom support apparatus of claim 1, wherein: the arc-shaped pipe is formed by bending a steel pipe.
6. The arch ring bottom support apparatus of claim 1, wherein: the bracket adopts a bowl buckle type bracket.
7. The arch ring bottom support apparatus of claim 1, wherein: the bottom template is made of wood plywood with a covering surface.
8. A method of installing an arch ring base support apparatus as claimed in any one of claims 1 to 7, wherein: comprises the steps of (a) carrying out,
s1, arranging the brackets along the width and span direction of the arch ring, and installing the brackets at a proper height;
s2, connecting the mandril at the lower part of the jacking support to the top end of the bracket through threads, and adjusting the mandril according to the height of the arch ring to reserve a certain mounting space for the upper part;
s3, placing through lower battens and wood blocking battens on the same row of supporting plates distributed in the width direction of the arch ring, wherein the wood blocking battens are prefabricated or manufactured on site, controlling the width of the wood blocking battens and ensuring that the wood blocking battens can be clamped between the H-shaped steel flange plate and the baffle;
s4, inserting the H-shaped steel from the wood blocking sides at two sides downwards until the web plate supports the lower wood, and distributing the H-shaped steel along the lower wood;
s5, placing a wood feeding square with a full length on a web plate of the H-shaped steel distributed in the width direction of the arch ring in the same row;
s6, manufacturing wedge battens on site according to the contact positions of the wedge battens and the arc-shaped pipe, ensuring that the wedge battens can be attached to the arc-shaped pipe, and placing the wedge battens on an upper batten;
s7, fixing the supports attached to the arc pipes on a wedge batten, and distributing the arc pipes along the width direction of the arch ring, wherein the arc pipes are prefabricated or manufactured on site;
s8, fixing the skid square support on the arc-shaped pipe and ensuring that the skid square is in the width direction of the arch ring and is distributed along the bridge direction;
and S9, laying and fixing the bottom template on the battens.
9. A method of installing an arch ring base support assembly in accordance with claim 8, wherein: the arc-shaped pipe is directly manufactured according to the radian of the arch ring or according to the elevation of the arch ring on different supports.
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CN202010960516.6A CN112030709A (en) | 2020-09-14 | 2020-09-14 | Arch ring bottom support device and installation method thereof |
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CN202010960516.6A CN112030709A (en) | 2020-09-14 | 2020-09-14 | Arch ring bottom support device and installation method thereof |
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JPH07189216A (en) * | 1993-12-24 | 1995-07-28 | Okabe Co Ltd | Form support for construction of concrete arch |
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