CN116084293B - Triangular steel arch formwork system and construction method for cast-in-place concrete main arch ring - Google Patents
Triangular steel arch formwork system and construction method for cast-in-place concrete main arch ringInfo
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- CN116084293B CN116084293B CN202310131803.XA CN202310131803A CN116084293B CN 116084293 B CN116084293 B CN 116084293B CN 202310131803 A CN202310131803 A CN 202310131803A CN 116084293 B CN116084293 B CN 116084293B
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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
- 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
- E01D2101/00—Material constitution of bridges
- E01D2101/20—Concrete, stone or stone-like material
- E01D2101/24—Concrete
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/10—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
- Y02A40/25—Greenhouse technology, e.g. cooling systems therefor
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- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention relates to a cast-in-place concrete main arch ring three-angle steel arch frame formwork supporting system which comprises an arch leg anchoring system, an arch leg fixed steel frame, a hanging basket hanging pouring system, a main arch ring adjustable arch frame and a cast-in-place bracket system, and comprises the steps of pier body construction, double-column foundation and short column foundation construction, cast-in-place bracket system erection, arch leg anchoring system construction, arch leg fixed steel frame construction, arch ring adjustable arch frame construction, hanging basket installation, water tank prepressing system construction and main arch ring concrete pouring. The steel arch frame has the advantages that one end of the steel arch frame is supported through the arch foot anchoring system, the other end of the steel arch frame is supported through the arch foot fixing section steel frame, the hanging basket hanging casting system can carry out sliding support on the steel arch frame, the casting construction efficiency of a concrete arch ring of a formwork is greatly improved, the main arch ring adjustable steel arch frame can be suitable for construction of an arch axis in a certain range, and the steel arch frame is supported below a cast-in-place full frame through the bailey beam and the short upright post.
Description
Technical Field
The invention relates to a cast-in-place concrete main arch ring three-angle steel arch frame formwork system and a construction method, which are mainly suitable for cast-in-place construction of a concrete main arch ring.
Background
In various bridges, the arch bridge has the most structural form and construction method, and under different construction methods, the construction control of the arch bridge has the characteristics. In general, arch bridge construction control is divided into two stages, one is a main arch ring forming stage and the other is an over-arch structure forming stage, wherein the main arch ring forming is a key of the whole bridge construction.
The arch springing construction process is complicated, the positioning difficulty of the first arch ring construction is extremely high, and the traditional construction mode needs to spend a great deal of time on positioning arch springing single components. Furthermore, after the installation of the first triangular arch frame is completed, if the rest triangular steel arch frames are installed again, the arch axis is not judged, and the construction mode can inevitably influence the construction efficiency greatly.
The traditional hanging basket hanging casting construction mode is generally characterized in that an embedded part is installed on a starting section of a main arch ring, then hanging baskets are supported along the direction of an arch axis through the embedded part, the construction mode is required to be used for detaching and installing hanging baskets section by section, a great deal of time is spent on detaching and installing hanging baskets, and accordingly the construction period is prolonged.
The adjustable steel arch centering commonly used at present can adjust the arch centering line shape through the upper chord adjustable joint, the arch centering line shape is good, a steel pipe bracket is not required to be erected, the construction load is small, the adjustable arch centering is high in transverse rigidity, good in stability and good in construction safety performance, but the construction mode is complex, any link is critical, and the construction quality is difficult to control.
Moreover, in certain specific cases, the adoption of a convenient prefabricated construction process is not suitable, such as the construction of a channel is unfavorable for the transportation of larger components, the assembly site does not have the working condition of a large crane, the economic principle is not met, and the like, and in this case, the construction of the main arch ring by adopting a cast-in-place method should be considered. However, because the arch frame structure is complex, the construction efficiency is low by adopting the existing main arch ring bracket cast-in-situ system, and the construction is to be optimized.
In view of the above problems, on the basis of summarizing the conventional construction method, it is needed to provide a new cast-in-place concrete main arch ring three-angle steel arch frame formwork system and a construction method according to the existing cast-in-place concrete main arch ring three-angle steel arch frame formwork system and the construction method so as to improve the construction quality and the construction efficiency of cast-in-place construction of the concrete main arch ring.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provides a cast-in-place concrete main arch ring three-angle steel arch frame formwork system and a construction method.
The cast-in-place concrete main arch ring three-angle steel arch frame formwork supporting system comprises an arch leg anchoring system, an arch leg fixed steel frame, a hanging basket suspension casting system, a main arch ring adjustable arch frame and a cast-in-place bracket system;
The arch foot anchoring system and the arch foot fixing steel frame respectively support one end of the steel arch frame, the arch foot anchoring system comprises a bearing I-steel and a left supporting truss, a transverse elevation adjusting block, an adjusting jack and a longitudinal elevation adjusting block are arranged between the bearing I-steel and the pier body, a steel arch frame hinged support and a right supporting truss are arranged on the bearing I-steel, and the left supporting truss is arranged on the pier body;
The main arch ring hanging basket hanging pouring system comprises a steel arch frame, a concrete arch ring bottom die is arranged on the top surface of the steel arch frame, a hanging basket system is connected to one side of the steel arch frame in a sliding mode, the hanging basket system is connected with a concrete arch ring side die through an end plate connecting rod, the main arch ring adjustable arch frame comprises a prefabricated base, the prefabricated base is arranged on a pier body through a prefabricated base elevation adjusting jack and a sandbox, the prefabricated base is connected with the steel arch frame in a sliding mode, the steel arch frame is provided with a water tank, an upper radian adjusting rod and a lower radian adjusting rod, the cast-in-place support system comprises a support steel pipe column and a short upright column, a bailey beam is arranged on the support steel pipe column, and the concrete arch ring is arranged on the bailey beam and the short upright column through a cast-in-place full-in-place support.
The arch foot anchoring system is arranged on a pier body, the bottom of a left supporting truss is connected with the pier body through pier body truss anchor plates, the arch foot anchoring system further comprises a level gauge and bearing I-steel stiffening plates, I-steel cross beams are arranged between the bearing I-steel cross beams, the end parts of the I-steel cross beams are connected with the pier body through pier body anchor plates, the bearing I-steel cross beams are provided with the level gauge, a longitudinal elevation adjusting block and a transverse elevation adjusting block are respectively fixed through adjusting screws, a hinged support limiting plate is arranged on a hinged support of the steel arch frame, and the hinged support of the steel arch frame is provided with the steel arch frame.
The steel arch support is characterized in that a steel arch support column is arranged at the bottom of a steel arch support spandrel girder, a support column upper jack is arranged at the top of the steel arch support column, a stiffening cylinder base and a support column lower jack are arranged at the bottom of the steel arch support column, a level gauge is arranged on the top surface of the steel arch support spandrel girder, a steel arch centering hinged support and an auxiliary support are further arranged on the top surface of the steel arch support spandrel girder, a distribution beam is respectively arranged at the bottom of the steel arch centering hinged support and the auxiliary support, steel arch centering hinged support limiting plates are arranged on two sides of the steel arch centering hinged support, hinged support limiting plates are arranged on the steel arch centering hinged support, steel arch centering is respectively supported by the steel arch centering hinged support and the auxiliary support, a wedge-shaped jacking block is arranged on the auxiliary support frame top plate through a chute, an auxiliary support fixing bolt is arranged between the auxiliary support frame top plate and the wedge-shaped jacking block, wedge-shaped jacking block groove lug plates are arranged on two sides of the steel arch support column and the pier body, and transverse fixed channel steel is arranged between the steel arch support column and the pier body.
The main arch ring hanging basket hanging casting system is characterized by further comprising a template fixing end plate, wherein a hanging basket upper sliding rail is arranged on one side of an upper transverse rod of the steel arch frame, a hanging basket lower sliding rail is arranged on one side of a lower transverse rod of the steel arch frame, the hanging basket system is connected with the hanging basket upper sliding rail and the hanging basket lower sliding rail in a sliding mode through a hanging basket upper channel steel sliding block and a hanging basket lower channel steel sliding block, an end plate connecting rod is arranged on one side of the template fixing end plate, the bottom of the end plate connecting rod is connected with the hanging basket system, a concrete arch ring side die is arranged on the other side of the template fixing end plate, a concrete arch ring bottom die is arranged on the top surface of the steel arch frame, a hanging basket bottom plate is paved on the top surface of the hanging basket upper channel steel, a guardrail upright post positioning cylinder is arranged at the end of the hanging basket upper channel steel, guardrail uprights are arranged in the guardrail upright post positioning cylinder, a protective net is arranged between the guardrail uprights, and a bottom die back edge is arranged between the concrete arch ring bottom die and the steel arch frame.
The adjustable arch frame is characterized in that a sand box base is arranged on the top surface of the pier body, a sand box and a prefabricated base elevation adjusting jack are arranged on the sand box base, sand discharging pipes are arranged on the sand box base, the prefabricated base is arranged along the direction of a river bank line and is arranged on the prefabricated base elevation adjusting jack, I-steel laying plates are further arranged on the bottom surface of the prefabricated base, the I-steel laying plates are arranged in the sand box, embedded I-steel is arranged on the top surface of the prefabricated base, a sliding bottom plate is connected to the embedded I-steel in a sliding mode, a steel arch frame hinged support is arranged on the top surface of the sliding bottom plate, a steel arch frame hinged support is used for supporting the steel arch frame, a water tank is arranged on the steel arch frame through a water tank support system, the water tank support system comprises a water tank support column, a column height adjusting sleeve is arranged on the water tank support column, a cross rod length adjusting sleeve is arranged on the water tank support column, a column cover plate is arranged on the column cover plate, a distribution beam backing plate is arranged on the column top distributing beam, a water tank laying bottom plate is arranged on the distribution beam backing plate, a water tank is arranged on the water tank placing bottom plate, a water tank back edge is arranged on the water tank side wall, a water tank is arranged on the water tank outer side, a guardrail is arranged on the water tank, a water tank bottom plate is arranged on the water tank, a water tank support is arranged, a water tank is arranged on the bottom support, a water tank is and a water tank is arranged.
The cast-in-place support system is characterized by further comprising a double-column foundation and a short-column foundation, wherein a bailey beam adjusting jack is arranged between a support steel pipe column and a bailey beam, an elevation adjusting triangular base plate is further arranged between the support steel pipe column and the bailey beam, a flange plate is arranged at the bottom of the support steel pipe column, a support steel pipe column thickening ring and a flange plate stiffening plate are arranged at the bottom of the support steel pipe column thickening ring, a double-column foundation embedded bottom plate is arranged below the double-column foundation embedded bottom plate, embedded steel angles and an embedded steel bar frame are arranged below the double-column foundation embedded bottom plate, an upper flange plate is arranged at the top of the support steel pipe column, a plurality of bailey beam adjusting jacks are symmetrically arranged on the upper flange plate, a bailey beam placing bottom plate is arranged at the top surface of the bailey beam adjusting jack, an elevation adjusting triangular base plate is arranged at the upper part of the bailey beam placing bottom plate, triangular base plate fixing bolts are arranged at the end parts of the bailey beam placing bottom plate, a plurality of elevation adjusting triangular base plates are fixed through the triangular base plate fixing bolts, a short-column end plate is arranged at the top surface of the short-column, a built-in steel reinforcement beam is arranged below the embedded steel reinforcing plate, a short-column is arranged at the periphery of the steel reinforcing beam, an upper end plate is arranged at the short-column, an upper end plate is arranged on the short-column, a short-column is connected with an upper end plate is arranged through a short-column upper end plate, and a lower end plate is arranged on a sleeper, and an upper end plate is connected with an upper end plate, and a lower end plate is arranged.
The construction method of the cast-in-place concrete main arch ring three-angle steel arch frame formwork system comprises the following steps:
Firstly, erecting a cast-in-situ bracket system, namely constructing a pier body, installing a short upright post and a bracket steel pipe column, installing a bailey beam on the bracket steel pipe column, and pouring a concrete arch ring after installing a cast-in-situ full framing;
installing a left support truss on the pier body, installing bearing I-steel by installing a longitudinal elevation adjusting block, a transverse elevation adjusting block and an adjusting jack, installing a steel arch frame hinged support and a right support truss, and supporting one end of a steel arch frame;
Installing a steel support frame, adjusting verticality through a jack below a steel support frame upright post, adjusting levelness of a steel support frame spandrel girder through a jack above the steel support frame upright post, installing a steel arch frame hinged support and an auxiliary supporting frame, and supporting the other end of the steel arch frame;
Installing a hanging basket suspension casting system, namely sliding and installing a hanging basket on one side of a steel arch, and then installing a concrete arch ring bottom die and an arch ring side die;
installing a water tank bracket system on the steel arch frame, adjusting a vertical rod height adjusting sleeve and a cross rod length adjusting sleeve, and installing a water tank;
And step six, pouring the concrete of the main arch ring, namely pouring the concrete of the main arch ring after the working procedures are finished.
The method comprises the following steps of sequentially constructing a double-column foundation and a short column foundation on a river bank, installing short columns on the short column foundation, installing a bracket steel pipe column thickening ring and a flange on a pre-buried bottom plate of the double-column foundation, welding a flange stiffening plate on the flange, finally installing a bracket steel pipe column on the flange, arranging a reinforced truss system between the bracket steel pipe columns on the two double-column foundations, installing a short column end plate on the top surface of the short column, installing a built-in steel reinforcing beam on the short column end plate, installing a short column upper end plate, fixing by connecting bolts of an upper end plate and a lower end plate, installing a sleeper on the short column upper end plate, installing a cast-in-place concrete full framing support on the upper part of the short column, installing a bailey beam adjusting jack on the upper flange on the upper part of the bracket steel pipe column, setting the number of triangular base plates according to design requirements and a level gauge liquid bubble, fixing by using a triangular base plate fixing bolt, then installing bailey beams on the bottom plate, finally installing other full framing supports and casting an arch ring.
In the second step, a left supporting truss is installed on the pier body, a longitudinal elevation adjusting block, a transverse elevation adjusting block and an adjusting jack are installed on the pier body, then bearing I-beams are installed on the longitudinal elevation adjusting block, the transverse elevation adjusting block and the adjusting jack, I-beams are welded between the two bearing I-beams, a bearing I-beam stiffening plate is synchronously constructed, a level gauge and a steel arch centering hinged support provided with a hinged support limiting plate are installed on the bearing I-beams, a right supporting truss is installed on one side, far away from the left supporting truss, of the bearing I-beam, the horizontal position of the bearing I-beam is adjusted through the adjusting jack according to a level gauge liquid bubble, the bearing I-beam is fixed through adjusting screws on the longitudinal elevation adjusting block and the transverse elevation adjusting block, and then a three-angle steel arch centering is installed.
Preferably, if a slidable triangular arch construction system is adopted, a main arch ring adjustable arch is adopted, firstly, a sandbox base is installed on a pier body, a sandbox and a prefabricated base elevation adjusting jack are installed on the sandbox base, then a prefabricated base is installed on the upper portion of the prefabricated base elevation adjusting jack, the height of the prefabricated base is adjusted through the prefabricated base elevation adjusting jack, sand is poured into the sandbox for fixing, then a sliding base is installed on embedded I-steel, after the sliding base slides to a designated position on the embedded I-steel, a steel arch is installed on a steel arch hinge seat on the upper portion of the sliding base, sand is released simultaneously after pouring of the concrete arch ring of the main arch ring is completed, the steel arch ring slides, and next concrete arch ring construction is performed after the sliding to the designated position.
The beneficial effects of the invention are as follows:
1) Supporting one end of the steel arch through an arch foot anchoring system; the horizontal and longitudinal elevation of the arch springing anchoring system are adjusted through the longitudinal elevation adjusting block, the horizontal elevation adjusting block and the adjusting jack, so that the installation construction efficiency is improved, the first steel arch is supported through the left supporting truss and the right supporting truss, the displacement influence of subsequent steel arch construction on the installation of the first steel arch is reduced, the workload of arch axis adjustment is reduced, the hinged support limiting plate is arranged on the hinged support of the steel arch, and the installation construction efficiency of the steel arch is improved.
2) The steel arch centering device comprises a steel arch centering device, a steel support frame upright post upper jack, a steel support frame upright post, a steel arch centering device and an auxiliary support frame, wherein the steel arch centering device is used for fixing the other end of the steel arch centering device through an arch foot, a support frame upright post lower jack is arranged at the bottom of the steel support frame upright post, the verticality of the steel support frame upright post is adjusted through the support frame upright post lower jack, the installation accuracy of the steel arch centering device is further guaranteed, the levelness of a steel support frame spandrel beam is adjusted through the jack, the installation accuracy of the steel arch centering device is further guaranteed, and a wedge-shaped top block with a sliding groove is arranged on the top surface of the auxiliary support frame, so that the height of a hinging seat of the first-section steel arch centering device can be quickly slipped and adjusted, and the construction efficiency is further improved.
3) The hanging basket hanging pouring system can carry out sliding supporting of the steel arch, the pouring construction efficiency of the concrete arch ring of the formwork is greatly improved, the hanging basket and the concrete arch ring side formwork are fixed through the formwork fixing end plate and the end plate connecting rod, the construction efficiency of formwork fixing is improved, and the hanging basket system is provided with oblique hanging basket reinforcing channel steel, so that the safety of the hanging basket system in the use process is guaranteed.
4) The adjustable steel arch centering of the main arch ring can be suitable for construction of arch axes in a certain range, the material utilization rate is improved, the adjustable steel arch centering can slide in the direction of the vertical arch axes, and after one construction is completed, the adjustable steel arch centering slides to the next working face to continue construction, and the construction efficiency of the concrete arch centering is improved.
5) The steel pipe column of the bracket is connected through the flange plate, so that the overall stability of the main arch ring bracket system is ensured, the overall position of the bracket is adjusted through the elevation adjusting system, the overall aesthetic property of a bridge is further ensured, the lower part of the cast-in-place full framing is supported through the bailey beam and the short upright post, the stress and deformation of the arch frame in the arch ring forming process can be ensured to be within the allowable range, and the safety of the arch ring is ensured.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the invention;
FIG. 2 is an overall construction diagram of the arch springing anchoring system;
FIG. 3 is an enlarged view of the arch springing anchoring system;
FIG. 4 is an enlarged view of area A of FIG. 3;
FIG. 5 is a schematic view of a longitudinal elevation adjustment block;
FIG. 6 is a schematic diagram of the pier body anchor plate structure;
FIG. 7 is a schematic view of the hinge base limiting plate position;
FIG. 8 is an overall construction of the fixed frame;
FIG. 9 is a schematic view of the structure of the connection of the auxiliary bracket and the wedge-shaped top block;
FIG. 10 is a schematic view of a load beam construction;
FIG. 11 is a schematic view of the bottom structure of a support stand;
FIG. 12 is a cross-sectional view of the bottom structure of the support stand;
FIG. 13 is an overall construction diagram of a hanging basket suspension casting system;
FIG. 14 is an enlarged view of area B of FIG. 13;
FIG. 15 is a plan view illustration of a cradle support;
FIG. 16 is a schematic view of the bottom structure of the basket;
FIG. 17 is a schematic view of a formwork support;
FIG. 18 is a schematic view of the slip direction of the basket.
FIG. 19 is an overall construction of the adjustable arch for the main arch;
FIG. 20 is a schematic view of a prefabricated base structure;
FIG. 21 is a schematic diagram of an arch pre-compression tank system;
Fig. 22 is an enlarged view of region C in fig. 21.
FIG. 23 is an overall block diagram of a cast-in-place stent system;
FIG. 24 is a schematic view of a double column foundation structure of a stent steel column;
Fig. 25 is a schematic diagram of a stub infrastructure;
FIG. 26 is a schematic diagram of the top structure of a stent steel column;
FIG. 27 is a schematic view of the connection of a short column to a full framing;
fig. 28 is an enlarged view of the area D in fig. 27.
Wherein: pier body 2, longitudinal elevation adjusting block 3, bearing I-steel stiffening plate 4, pier body anchor plate 5, pier body anchor rod 6, right support truss bottom plate fixing bolt 7, right support truss bottom plate 8, right support truss 9, steel arch support plate 10, support plate positioning block 11, I-steel beam 12, level gauge 13, hinge seat limiting plate 14, steel arch support 15, bearing I-steel 16, left support truss 17, pier body truss anchor plate 18, adjusting screw 19, transverse elevation adjusting block 20, adjusting jack 21, steel arch 22, concrete arch ring 23, truss vertical pole stiffening cylinder 24, steel support frame anchor plate 25, transverse fixing channel 26, longitudinal channel beam 27, steel support frame spandrel girder 28, steel support frame spandrel girder 29, distribution girder reinforcing block 30, auxiliary support frame 31, auxiliary support frame fixing bolt 32, auxiliary support frame roof 33, wedge-shaped top block lug 34, wedge-shaped top block. 35, steel arch hinged support limiting plate 36, distribution beam 37, distribution beam outer stiffening plate 38, distribution beam inner stiffening plate 39, parallel support 40, support frame column upper jack plate 41, support frame column upper jack 42, support frame column upper jack positioning plate 43, support frame column reinforcing ring 44, support frame column ear plate 45, support frame column ear plate fixing bolt 46, support frame column lower jack 47, lower jack limiting cylinder 48, support frame column stiffening cylinder 49, stiffening cylinder base 50, stiffening cylinder embedment 51, parallel support limiting ring 52, concrete arch ring bottom die 53, arch ring side mold ear plate 54, template fixing end plate 55, end plate fixing bolt 56, end plate connecting rod 57, arch ring side mold 58, hanging basket upper channel 59, guardrail column 60, protective screen 61, guardrail column positioning cylinder 62, hanging basket bottom plate 63, hanging basket upper slide 64, hanging basket upper slide rail 65 Steel arch 66, hanging basket reinforcing channel 67, hanging basket lower channel sliding block 68, hanging basket lower sliding rail 69, hanging basket lower channel 70, hanging basket lower sliding rail connecting plate 71, bottom die back edge 72, sand discharging pipe 73, sand discharging cover 74, sand box 75, prefabricated base 76, embedded I-steel 77, sliding bottom plate 78, sand box base 79, sand 80, prefabricated base elevation adjusting jack placing groove 81, prefabricated base elevation adjusting jack 82, base embedded reinforcing plate 83, transverse sliding reinforcing block 84, water tank support column fixing bolt 85, water tank support column 86, radian adjusting stiffening rod 87, upper radian adjusting rod 88, lower radian adjusting rod 89, vertical rod height adjusting sleeve 90, water tank support system 91, cross rod length adjusting sleeve 92, water tank 93, water tank back edge 94, water tank guard 95, water tank limiting position. Reinforcing coaming 96, column cover plate 97, column top distribution beam 98, distribution beam backing plate 99, water tank placement bottom plate 100, cast-in-place full framing 101, bailey beam 102, double column foundation 103, pre-buried angle steel 104, pre-buried steel bar frame 105, double column foundation pre-buried bottom plate 106, flange stiffening plate 107, bracket steel pipe column thickening ring 108, flange plate 109, bracket steel pipe column 110, short column foundation 111, short column foundation pre-buried I-steel 112, short column base 113, short column stiffening ring plate 114, short column 115, upper flange plate 116, bailey beam adjustment jack 117, triangular backing plate fixing bolt 118, bailey beam placement bottom plate 119, elevation adjustment triangular backing plate 120, short column end plate 121, built-in section steel stiffening beam 122, upper and lower end plate connecting bolt 123, short column upper end plate 124, sleeper.
Detailed Description
The invention is further described below with reference to examples. The following examples are presented only to aid in the understanding of the invention. It should be noted that it will be apparent to those skilled in the art that modifications can be made to the present invention without departing from the principles of the invention, and such modifications and adaptations are intended to be within the scope of the invention as defined in the following claims.
Example 1
As an example, as shown in fig. 1 to 28, a cast-in-place concrete main arch ring three-angle steel arch frame formwork supporting system comprises an arch foot anchoring system, an arch foot fixed steel frame, a hanging basket hanging casting system, a main arch ring adjustable arch frame and a cast-in-place bracket system;
the arch springing anchoring system and the arch springing fixed steel frame are suitable for the construction of the fixed steel arch frame 21, respectively support one end of the steel arch frame 21, and the arch springing anchoring system is arranged on the pier body 1.
The arch foot anchoring system comprises a bearing I-steel 15, a steel arch frame hinged support 14, a right support truss 8 and a left support truss 16, wherein a transverse elevation adjusting block 19, an adjusting jack 20 and a longitudinal elevation adjusting block 2 are arranged between the bearing I-steel 15 and the pier body 1, the right support truss 8 is arranged on the bearing I-steel 15, a right support truss bottom plate 7 is arranged at the bottom of the right support truss 8, the right support truss 8 and the right support truss bottom plate 7 are fixed through a right support truss bottom plate fixing bolt 6, and a steel arch frame supporting plate 9 is arranged at the top of the right support steel truss 8. The left support truss 16 is arranged on the pier body 1, a pier body truss anchor plate 17 is arranged at the bottom of the left support truss 16, a truss upright pole stiffening cylinder 23 is arranged at the upper part of the pier body truss anchor plate 17, and the bottom ends of the upright poles of the left support truss 16 are arranged in the truss upright pole stiffening cylinder 23. The bearing I-steel 15 is also provided with a steel arch hinged support 14, the steel arch hinged support 14 is provided with a hinged support limiting plate 13, and the steel arch hinged support 14 is provided with a steel arch. The outside of the steel arch 21 is provided with a concrete arch ring 22.
The arch foot fixing system further comprises a level gauge 12 and a bearing I-steel stiffening plate 3, wherein an I-steel beam 11 is arranged between the bearing I-steels 15 for reinforcement, the end part of the I-steel beam 11 is provided with a pier body anchor plate 4, and the pier body anchor plate 4 is provided with a pier body anchor rod 5. The bearing I-steel 15 is provided with a level meter 12, and after an adjusting jack 20 is adjusted to be level, a longitudinal elevation adjusting block 2 and a transverse elevation adjusting block 19 are respectively fixed by an adjusting screw 18.
The arch foot fixed steel frame comprises a steel arch frame hinged support 14, a steel support frame, a distribution beam 36, an auxiliary support frame 30 and a steel support frame spandrel beam 27, wherein steel support frame anchor plates 24 are arranged on the side edges of the pier body 1, transverse fixed channel steel 25 is arranged between a steel support frame upright post and each steel support frame anchor plate 24 on the pier body 1, and a longitudinal channel steel tie beam 26 is arranged between the two steel support frames.
The steel support frame top surface is equipped with steel support frame spandrel girder 27, and steel support frame spandrel girder 27 bottom is equipped with steel support frame stand, and steel support frame stand top is equipped with support frame stand jack-up 41, be equipped with steel support frame spandrel girder stiffening plate 28 in the steel support frame spandrel girder 27, steel support frame spandrel girder 27 tip is equipped with steel support frame anchor plate 24, steel support frame stand top surface is equipped with support frame stand strengthening ring 43, is equipped with support frame stand jack-up locating plate 42 on the support frame stand strengthening ring 43, is equipped with support frame stand jack-up 41 on the support frame stand jack-up locating plate 42, and support frame stand jack-up 41 top surface is equipped with support frame stand jack-up 40, adjusts steel support frame spandrel girder 27's levelness through support frame stand jack-up 41, and then has guaranteed steel arch 21's installation accuracy.
The steel arch 21 is characterized in that a stiffening cylinder base 49 and a supporting frame post lower jack 46 are arranged at the bottom of a steel support frame post, a stiffening cylinder embedded part 50 is arranged at the bottom of the stiffening cylinder base 49, a supporting frame post stiffening cylinder 48 is arranged on the top surface of the stiffening cylinder base 49, a lower jack limiting cylinder 47 is arranged on the top surface of the supporting frame post stiffening cylinder 48, a supporting frame post lower jack 46 is arranged in the lower jack limiting cylinder 47, a supporting frame post lug plate 44 is arranged on the top surface of the supporting frame post lower jack 46, a supporting frame post lug plate fixing bolt 45 is arranged between the supporting frame post lug plate 44 and the supporting frame post stiffening cylinder 48, a steel support frame post is arranged in the supporting frame post stiffening cylinder 48, and the verticality of the steel support frame post is adjusted through the supporting frame post lower jack 46, so that the installation accuracy of the steel arch 21 is guaranteed.
The profile steel support frame spandrel girder 27 top surface is equipped with the level gauge 12.
The top surface of the steel support frame spandrel girder 27 is also provided with a steel arch hinged support 14 and an auxiliary supporting frame 30, the top surface of the steel support frame spandrel girder 27 is provided with two sets of distribution girder systems, the left side of the top surface of the steel support frame spandrel girder 27 is provided with three distribution girders 36, distribution girder inner stiffening plates 38 are arranged between the distribution girders 36, the outer sides of the distribution girders 36 are provided with distribution girder outer stiffening plates 37, the bottom of the distribution girder outer stiffening plates 37 is provided with distribution girder reinforcing blocks 29, the top surface of the distribution girders 36 is provided with a steel arch hinged support 14, the two sides of the steel arch hinged support 14 are provided with steel arch hinged support limiting plates 35, and the steel arch hinged support 14 is provided with a hinged support limiting plate 13;
the right side of the top surface of the profile steel support frame spandrel girder 27 is provided with a distribution beam 36, the top surface of the distribution beam 36 is provided with an auxiliary support frame 30, the top surface of the auxiliary support frame 30 is provided with an auxiliary support frame top plate 32, the auxiliary support frame top plate 32 is provided with a wedge-shaped top block 34 through a chute, the height of the first-section steel arch frame hinged support 14 can be quickly adjusted through the sliding wedge-shaped top block 34, an auxiliary support frame fixing bolt 31 is arranged between the auxiliary support frame top plate 32 and the wedge-shaped top block 34, and two sides of the wedge-shaped top block 34 are provided with wedge-shaped top block fluted lug plates 33.
The steel arch hinge support 14 and the auxiliary bracket 30 support the legs of one end of the steel arch 21, respectively.
The hanging basket suspension casting system comprises a concrete arch ring bottom die 52, a template fixing end plate 54, a hanging basket system, a steel arch frame 65, a hanging basket reinforcing channel steel 66 and a hanging basket upper channel steel 58, wherein the hanging basket system is arranged on the steel arch frame 65, a hanging basket sliding rail system of the hanging basket system is arranged on one side of the steel arch frame 65, and the concrete arch ring template system is arranged on one side of the hanging basket system;
the steel arch 65 is provided with a basket upper sliding rail 64 on one side of the upper cross rod, a basket lower sliding rail 68 is arranged on one side of the lower cross rod of the steel arch 65, the lower cross rod of the steel arch 65 and the basket lower sliding rail 68 are fixed through a basket lower sliding rail connecting plate 70, the basket upper sliding rail 64 is provided with a basket upper channel steel sliding block 63, the basket lower sliding rail 68 is provided with a basket lower channel steel sliding block 67, the basket upper channel steel sliding block 63 is provided with a basket upper channel steel 58, the basket lower channel steel sliding block 67 is provided with a basket lower channel steel 69, the basket upper channel steel 58 and the basket lower channel steel 69 are in one-to-one correspondence, a basket system is formed by each group of basket upper channel steel 58 and the basket lower channel steel 69, the basket system strength is improved by the basket reinforcing channel steel 66, and the safety of the basket system is ensured. The basket system slidably connects the upper basket rail 64 and the lower basket rail 68.
An end plate connecting rod 56 is arranged on one side of the template fixing end plate 54, the bottom of the end plate connecting rod 56 is arranged on a hanging basket upper channel steel 58, a concrete arch ring side mold 57 is arranged on the other side of the template fixing end plate 54, a plurality of arch ring side mold lug plates 53 are arranged at the end parts of the concrete common arch ring side mold 57, and end plate fixing bolts 55 are arranged between the arch ring side mold lug plates 53 and the template fixing end plate 54. The top surface of the steel arch 65 is provided with a concrete arch ring bottom die 52, and a bottom die back ridge 71 is arranged between the concrete arch ring bottom die 52 and the steel arch 65.
The top surface of the upper channel steel 58 of the hanging basket is paved with a bottom plate 62 of the hanging basket, the end part of the upper channel steel 58 of the hanging basket is provided with a guardrail column positioning cylinder 61, a guardrail column 59 is arranged in the guardrail column positioning cylinder 61, and a protective net 60 is arranged between the guardrail columns 59.
The hanging basket system is supported by the two ends of the steel arch frame simultaneously, concrete is poured after the templates are supported by the segments, the hanging basket system slides to the next segment and supports the templates after the concrete curing is completed, the hanging basket system is circulated to the arch frame to fold, repeated disassembly and assembly operations are not needed, and the pouring construction efficiency of the concrete arch ring 22 of the supporting mold is greatly improved.
The adjustable arch frame of the main arch ring is suitable for the construction of a slideable triangular arch frame and comprises a steel arch frame hinged support 14, a sandbox 74, a prefabricated base 75, a sliding bottom plate 77, a prefabricated base elevation adjusting jack 81, a water tank 92, a water tank bracket system 90 and a water tank bracket upright post 85;
The top surface of the pier body 1 is provided with a sand box base 78, the sand box base 78 is provided with a sand box reserved groove and a prefabricated base elevation adjusting jack placing groove 80, a prefabricated base elevation adjusting jack 81 is arranged in the prefabricated base elevation adjusting jack placing groove 80, the prefabricated base elevation adjusting jack placing groove 80 is arranged at intervals of construction span, the sand box 74 is arranged in the sand box reserved groove, sand 79 is arranged in the sand box 74, a sand discharging cover 73 is arranged at the end part of the sand discharging pipe 72, the sand discharging pipe 72 is arranged on the sand box 74, and the sand box 74 can be used for fixing and levelness adjusting of the prefabricated base 75.
The prefabricated base 75 is in a strip shape, the prefabricated base 75 is arranged along the direction of a river shoreline, the prefabricated base 75 is arranged on a prefabricated base elevation adjusting jack 81, a base pre-buried reinforcing plate 82 is arranged on the top surface of the prefabricated base elevation adjusting jack 81, I-shaped steel is arranged on the bottom surface of the prefabricated base 75, the I-shaped steel is arranged in the sandbox 74, double-spliced pre-buried I-shaped steel 76 is arranged on the top surface of the prefabricated base 75 and serves as a sliding track, the double-spliced pre-buried I-shaped steel 76 is slidably connected with a sliding bottom plate 77, a steel arch frame hinged support 14 is arranged on the top surface of the sliding bottom plate 77, the steel arch frame hinged support 14 supports a steel arch frame 21, and a transverse sliding reinforcing block 83 is arranged in the middle of the sliding bottom plate 77. The sliding bottom plate 77 and the steel arch 21 above the sliding bottom plate can slide in the direction of the vertical arch axis, and the sliding bottom plate can slide to the next working face to continue construction after one construction is completed, so that the construction efficiency of the concrete arch is improved.
The water tank support system 90 is arranged on the steel arch 21, the steel arch 21 is provided with a water tank support column 85, the steel arch 21 is connected with the water tank support column 85 through a water tank support column fixing bolt 84, the water tank support column 85 is provided with a column height adjusting sleeve 89, a support cross rod length adjusting sleeve 91 of the water tank support system 90 is arranged on a support cross rod of the water tank support system 90, a scissor support is arranged on the water tank support system 90, the top surface of the water tank column 85 is provided with a column cover plate 96, the column cover plate 96 is provided with a column top distribution beam 97, the column top distribution beam 97 is provided with a distribution beam base plate 98, the distribution beam base plate 98 is provided with a water tank placing bottom plate 99, the water tank 92 is arranged on the water tank placing bottom plate 99, the outer side of the side wall of the water tank 92 is provided with a water tank back edge 93, the water tank 92 is provided with a water tank guardrail 94, and the water tank placing bottom plate 99 at the bottom position of the water tank 92 is provided with a water tank limiting reinforcing plate 95.
The steel arch 21 is also provided with an upper arc adjusting rod 87 and a lower arc adjusting rod 88, and an arc adjusting rod stiffening room 86 is arranged between the upper arc adjusting rod 87 and the lower arc adjusting rod 88, so that the steel arch is applicable to construction of arch axes in a certain range, and the material utilization rate is improved.
The cast-in-situ bracket system comprises a level gauge 12, a cast-in-situ full framing 100, a double-column foundation 102, a flange 108, a short column foundation 110 and a bailey beam 101;
the double-column foundation 102 top surface is equipped with twice support steel-pipe column 109, is equipped with bailey beam 101 on the support steel-pipe column 109, is equipped with bailey beam adjustment jack 116 between support steel-pipe column 109 and the bailey beam 101, support steel-pipe column 109 top is equipped with ring flange 115, and the symmetry is equipped with several bailey beam adjustment jack 116 on the ring flange 115, and bailey beam adjustment jack 116 top surface is equipped with bailey beam and places bottom plate 118, and bailey beam is placed bottom plate 118 upper portion and is equipped with bailey beam 101 and level gauge 12, is equipped with polylith elevation adjustment triangle backing plate 119 between support steel-pipe column 109 and the bailey beam and places bottom plate 118, and bailey beam is placed bottom plate 118 tip and is equipped with the triangle backing plate fixing bolt 117 that is used for fixed elevation adjustment triangle backing plate 119, adjusts after adjusting bailey beam and placing bottom plate 118 level, will be fixed with elevation adjustment triangle backing plate 119 through triangle backing plate fixing bolt 117.
The bottom of the support steel pipe column 109 is provided with a flange 108, the lower part of the flange 108 is provided with a support steel pipe column thickening ring 107, the outer side of the support steel pipe column thickening ring 107 is provided with a flange stiffening plate 106, the bottom of the support steel pipe column thickening ring 107 is provided with a double-column foundation embedded bottom plate 105, the lower part of the double-column foundation embedded bottom plate 105 is provided with an embedded angle steel 103 and an embedded steel bar frame 104, and a reinforced truss system is arranged between the support steel pipe columns 109 on the two double-column foundations 102.
The novel steel reinforced concrete foundation is characterized in that a short column foundation embedded I-shaped steel 111 is arranged on the short column foundation 110, a short column base 112 is arranged on the upper portion of the short column foundation embedded I-shaped steel 111, a short column 114 is arranged on the short column base 112, a short column end plate 120 is arranged on the top surface of the short column 114, a built-in steel reinforcement beam 121 is arranged on the top surface of the short column end plate 120, a short column upper end plate 123 is arranged on the periphery of the built-in steel reinforcement beam 121, the short column end plate 120 is in a groove shape, the short column end plate 120 and the short column upper end plate 123 are fixed through an upper end plate connecting bolt 122 and a lower end plate connecting bolt 122, a sleeper 124 is arranged on the short column upper end plate 120, and a cast-in-situ full-framing 100 is arranged on the sleeper 124. The short column 114 foot is provided with a short column stiffening ring plate 113.
The cast-in-place full framing 100 is arranged on the bailey beam 101 and the short upright 114, the concrete arch ring 22 is arranged on the cast-in-place full framing 100, and two ends of the concrete arch ring 22 are arranged on the pier body 1, so that the stress and deformation of the arch frame in the process of forming the concrete arch ring 22 can be ensured to be within an allowable range, and the safety of the concrete arch ring is ensured.
Example two
As another embodiment, the present embodiment proposes a construction method of the cast-in-place concrete main arch ring three-angle steel arch frame formwork system in the first embodiment, including the following steps:
And step one, pier body construction, namely installing a pier body truss anchor plate 17, a pier body anchor plate 4, a section steel support frame anchor plate 24, a stiffening cylinder embedded part 50 and the like at a design position during pier body 1 construction.
The construction of the double-column foundation and the short column foundation, namely, the construction of the double-column foundation 102 and the short column foundation 110 on the river bank in sequence, and the arrangement of the pre-buried I-steel 111, the pre-buried bar frame 104 and the pre-buried angle steel 103 of the short column foundation according to design requirements.
Setting up a cast-in-situ bracket system, namely setting a short-column stiffening ring plate 113 on a short-column foundation embedded I-steel 111 on the short-column foundation, then installing a short column 114 in the short-column stiffening ring plate 113, installing on a double-column foundation embedded bottom plate 105, then installing a flange 108 on a bracket steel pipe column thickening ring 107, welding a flange stiffening plate 106 on the flange 108, finally installing a bracket steel pipe column 109 on the flange, and then installing a truss reinforcing system between two groups of bracket steel pipe column systems. A short column end plate 120 is installed on the top surface of a short column 114, a built-in steel reinforcement beam 121 is installed on the short column end plate 120, a short column upper end plate 123 is installed and fixed by upper and lower end plate connecting bolts 122, a sleeper 124 is installed on the short column upper end plate 120, a cast-in-place full framing 100 on the upper part of the short column 114 is installed, a bailey beam adjusting jack 116 is installed on an upper flange plate 115 on the upper part of a frame steel pipe column 109, the number of triangular backing plates 119 is adjusted according to design requirements and the liquid bubble requirements of a level gauge 12, the number of the triangular backing plates 119 is fixed by triangular backing plate fixing bolts 117, the bailey beam 101 is installed on a bailey beam placing bottom plate 119, the rest cast-in-place full framing 100 is installed finally, and a concrete arch 22 is cast.
And constructing an arch foot anchoring system, namely pouring a main span concrete arch ring, adopting a triangular steel arch system, supporting arch feet on one side by adopting the arch foot anchoring system, firstly installing a left support truss 16 on a truss upright stiffening cylinder on an pier body truss anchor plate 17, installing a longitudinal elevation adjusting block 2, a transverse elevation adjusting block 19 and an adjusting jack 20 on the pier body, then installing a bearing I-steel 15, welding an I-steel beam 11 between the two bearing I-steels, synchronously constructing a bearing I-steel stiffening plate 3, installing a steel arch frame hinged support 14 of a level gauge 12 and an ancient hinged support limiting plate 13 on the bearing I-steel 15, installing a right support truss 8 on one side, adjusting the horizontal position of the bearing I-steel 15 according to a liquid bubble of the level gauge 12 through the adjusting jack 20, fixing by using adjusting screws on the longitudinal elevation adjusting block 2 and the transverse elevation adjusting block 19, and installing a triangular steel arch frame 21 after the system is adjusted.
And thirdly, constructing arch springing fixed steel frames, namely pouring a main span concrete arch ring, wherein a triangular steel arch frame system is adopted in the pouring construction of the main span concrete arch ring, a steel support frame supporting system is adopted in the arch springing on the other side of the main span concrete arch ring, support frame columns are firstly installed on support frame column stiffening cylinders 48, the verticality of the columns is adjusted through support frame column lower jacks 56 on the columns, after the steel columns are installed, longitudinal channel steel tie beams 26 are installed, transverse fixed channel steel 25 are installed on steel support frame anchor plates 24, support frame column upper jacks 40 are installed in support frame column upper jack positioning plates 42, the levelness of steel support frame spanners 27 is adjusted through the last days and a level gauge, then steel support frame spanners 28 of the steel support frame spanners 27 are installed, distribution beams 36, distribution beam inner stiffening plates 38 and distribution beam reinforcing blocks 29 are installed, steel arch frame hinge bases 14 are installed on the three-split distribution beams 36, auxiliary support frame top plates 30 are installed on top surfaces of the auxiliary support frame beams, and the auxiliary support frame roof plates 32 are further supported through adjusting wedge-shaped jacking block adjusting positions.
And fourthly, installing the hanging basket, namely after the steel arch 21 is installed, installing a hanging basket lower sliding rail 69 on one side of the steel arch 21 with the aid of a hanging basket lower sliding rail connecting plate 70, installing a hanging basket upper sliding rail 64 on an upper chord of the triangular steel arch, installing a hanging basket lower channel steel 69 on the hanging basket lower sliding rail 68, installing a hanging basket upper channel steel 58 with a hanging basket upper channel steel sliding block 63 on the hanging basket upper sliding rail 64, welding a hanging basket reinforcing channel steel 66 between the two channel steels, installing guardrail posts 59 in guardrail post positioning cylinders 61 at the end parts of the hanging basket upper channel steel 58, installing protective nets 60 between the guardrail posts, paving a hanging basket bottom plate 62 on the steel of the hanging basket upper channel 58, paving a bottom die ridge 71 on the top surface of the triangular steel arch, then installing a concrete arch bottom die 52, installing an arch ring side die 57, and fixing an arch ring side die ear plate 53 on the arch ring side die 57 and a die plate fixing end plate 54 on the hanging basket upper channel steel by using end plate fixing bolts 55.
And fifthly, constructing a water tank prepressing system, namely installing a water tank bracket upright post 85 with an upright post height adjusting sleeve 89 on the triangular steel arch 21, adjusting the upright post height adjusting sleeve 89 according to the requirement, arranging a cross rod on the upright post, adjusting the cross rod length adjusting sleeve 91 to a proper length, and installing a scissor support. A column cover plate 96 is arranged on the top surface of a water tank support column 85, a column top distribution beam 97 is arranged on the column cover plate, a water tank placing bottom plate 99 is arranged on the distribution beam, and a water tank 92 with a water tank back ridge 93 is arranged on the water tank placing bottom plate 99.
And step six, pouring the concrete of the main arch ring, namely pouring the concrete of the main arch ring after the working procedures are finished.
If the slidable triangular arch construction system is adopted, the following construction method is adopted, firstly, a sandbox base 78 is installed on the pier body 1, a sandbox 74 and a prefabricated base elevation adjusting jack 81 are installed, then a prefabricated base 75 is installed at the upper portion of the pier body, the height of the prefabricated base 75 is adjusted through the prefabricated base elevation adjusting jack 81, sand 79 is poured into the pier body for fixing, then a sliding base 77 is installed on the embedded I-steel 76, the sliding base can slide on the embedded I-steel 76 by means of a horizontal jack, a triangular steel arch 21 is installed on a steel arch hinged support 14 at the upper portion of the pier body after the pier body is slid to a designated position, after pouring of the concrete arch 22 is completed, the horizontal jack is used for pushing the horizontal sliding reinforcing block 83, meanwhile sand 79 is released, the steel arch 21 slides, and the next construction of the concrete arch 22 is performed after the steel arch 21 slides to the designated position.
Claims (10)
1. The cast-in-place concrete main arch ring three-angle steel arch frame formwork supporting system is characterized by comprising an arch foot anchoring system, an arch foot fixing steel frame, a hanging basket suspension casting system, a main arch ring adjustable arch frame and a cast-in-place bracket system;
the arch foot anchoring system and the arch foot fixing steel frame respectively support one end of a steel arch frame (21), the arch foot anchoring system comprises a bearing I-steel (15) and a left support truss (16), a transverse elevation adjusting block (19), an adjusting jack (20) and a longitudinal elevation adjusting block (2) are arranged between the bearing I-steel (15) and a pier body (1), a steel arch frame hinged seat (14) and a right support truss (8) are arranged on the bearing I-steel (15), the left support truss (16) is arranged on the pier body (1), the arch foot fixing steel frame comprises a steel support frame spandrel girder (27) and a steel support frame upright column, the steel support frame upright column is provided with a support frame upright column upper jack (41) and a support frame upright column lower jack (46), and the steel support frame spandrel girder (27) is provided with a steel arch frame hinged seat (14) and an auxiliary support frame (30);
the main arch ring hanging basket hanging casting system comprises a steel arch frame (65), a concrete arch ring bottom die (52) is arranged on the top surface of the steel arch frame (65), a hanging basket system is connected to one side of the steel arch frame (65) in a sliding mode, a concrete arch ring side die (57) is connected to the hanging basket system through an end plate connecting rod (56), the main arch ring adjustable arch frame comprises a prefabricated base (75), the prefabricated base (75) is arranged on a pier body (1) through a prefabricated base elevation adjusting jack (81) and a sandbox (74), the prefabricated base (75) is connected with the steel arch frame (21) in a sliding mode, the steel arch frame (21) is provided with a water tank (92), an upper radian adjusting rod (87) and a lower radian adjusting rod (88), the cast-in-situ support system comprises a support steel pipe column (109) and a short column (114), a bailey beam (101) is arranged on the support steel pipe column (109), and an arch concrete ring (22) is arranged on the bailey beam (101) and the short column (114) through cast-in-situ full framing.
2. The cast-in-place concrete main arch ring three-angle steel arch frame formwork system is characterized in that an arch foot anchoring system is arranged on a pier body (1), the bottom of a left supporting truss (16) is connected with the pier body (1) through a pier body truss anchor plate (17), the arch foot anchoring system further comprises a level gauge (12) and a bearing I-steel stiffening plate (3), an I-steel beam (11) is arranged between the bearing I-steel beams (15), the end parts of the I-steel beams (11) are connected with the pier body (1) through the pier body anchor plate (4), the bearing I-steel beams (15) are provided with level gauges (12), a longitudinal elevation adjusting block (2) and a transverse elevation adjusting block (19) are respectively fixed through adjusting screws (18), a hinged seat limiting plate (13) is arranged on a steel arch frame hinged seat (14), and a steel arch frame is arranged on the steel arch frame hinged seat (14).
3. The cast-in-place concrete main arch ring three-angle steel arch frame supporting system is characterized in that in an arch foot fixed steel frame, a steel support frame upright post is arranged at the bottom of a steel support frame spandrel girder (27), a support frame upright post upper jack (41) is arranged at the top of the steel support frame upright post, a stiffening cylinder base (49) and a support frame upright post lower jack (46) are arranged at the bottom of the steel support frame upright post, a level gauge (12) is arranged on the top surface of the steel support frame spandrel girder (27), a steel arch frame hinged support (14) and an auxiliary supporting frame (30) are further arranged on the top surface of the steel support frame spandrel girder (27), distribution beams (36) are respectively arranged at the bottoms of the steel arch frame hinged support (14) and the auxiliary supporting frame (30), steel arch frame hinged support limiting plates (35) are arranged at two sides of the steel arch frame hinged support (14), hinged support limiting plates (13) are arranged on the steel arch frame hinged support (14) and the auxiliary supporting frame upright post (21) respectively, wedge-shaped top plates (34) are arranged on the top plates (32) through sliding grooves, wedge-shaped top plates (34) are arranged between the auxiliary supporting frame top plates (32) and the top plates (34) and wedge-shaped supporting frame (31) are respectively), and wedge-shaped steel arch frame supporting plates (1) are arranged between two sides and wedge-shaped supporting frame bolts (1).
4. The cast-in-place concrete main arch ring three-angle steel arch formwork system according to claim 1 is characterized in that the main arch ring hanging basket hanging pouring system further comprises a formwork fixing end plate (54), a hanging basket upper sliding rail (64) is arranged on one side of an upper cross rod of the steel arch frame (65), a hanging basket lower sliding rail (68) is arranged on one side of a lower cross rod of the steel arch frame (65), the hanging basket system is connected with the hanging basket upper sliding rail (64) and the hanging basket lower sliding rail (68) through a hanging basket upper channel steel sliding block (63) and a hanging basket lower channel steel sliding block (67) in a sliding mode, an end plate connecting rod (56) is arranged on one side of the formwork fixing end plate (54), a hanging basket system is connected with the bottom plate (56), a concrete arch ring side formwork (57) is arranged on the other side of the formwork fixing end plate (54), a concrete arch ring bottom formwork (52) is arranged on the top surface of the steel arch frame (65), a hanging basket bottom plate (62) is paved on the top surface of the hanging basket, a guardrail upright positioning cylinder (61) is arranged at the end of the hanging basket upper channel steel (58), guardrail upright posts (59) are arranged in the guardrail upright posts (59), and a guardrail upright post (59) is arranged between the guardrail upright posts (59) and a bottom formwork (65) and a bottom formwork (71).
5. The cast-in-place concrete main arch ring three-angle steel arch frame formwork system according to claim 1, wherein in the main arch ring adjustable arch frame, a sandbox base (78) is arranged on the top surface of the pier body (1), a sandbox (74) and a prefabricated base elevation adjusting jack (81) are arranged on the sandbox base (78), a sand discharging pipe (72) is arranged on the sandbox (74), the prefabricated base (75) is arranged along the direction of a river shoreline, the prefabricated base (75) is arranged on the prefabricated base elevation adjusting jack (81), a laying I-steel is further arranged on the bottom surface of the prefabricated base (75), the laying I-steel is arranged in the sandbox (74), an embedded I-steel (76) is arranged on the top surface of the prefabricated base (75), a sliding bottom plate (77) is connected in a sliding mode, a steel arch frame hinging seat (14) is arranged on the top surface of the sliding bottom plate (77), a steel arch frame hinging seat (14) is used for supporting the steel arch frame (21), a water tank (92) is arranged on the steel arch frame (21) through a water tank bracket system (90), the water tank bracket (90) comprises a water tank bracket (85), a vertical column (89) is arranged on the water tank bracket (85), a horizontal column (96) is arranged on the top surface of the water tank bracket (85), a horizontal column (96) is arranged on the water tank bracket (85) and a horizontal column adjusting sleeve (96) is arranged on the top surface, be equipped with stand roof distribution roof beam (97) on stand apron (96), be equipped with distribution roof beam backing plate (98) on stand roof distribution roof beam (97), be equipped with on distribution roof beam backing plate (98) water tank and place bottom plate (99), be equipped with water tank (92) on water tank placement bottom plate (99), water tank (92) lateral wall outside is equipped with water tank back of the body stupefied (93), water tank (92) outside is equipped with water tank guardrail (94), be equipped with water tank spacing reinforcing plate (95) on water tank placement bottom plate (99) of water tank (92) bottom position.
6. The cast-in-place concrete main arch ring three-angle steel arch formwork system according to claim 1, wherein the cast-in-place bracket system further comprises a double-column foundation (102) and a short-column foundation (110), a bailey beam adjusting jack (116) is arranged between the bracket steel-pipe column (109) and the bailey beam (101), an elevation adjusting triangular base plate (119) is further arranged between the bracket steel-pipe column (109) and the bailey beam (101), a flange plate (108) is arranged at the bottom of the bracket steel-pipe column (109), a bracket steel-pipe column thickening ring (107) and a flange plate stiffening plate (106) are arranged at the flange plate (108), a double-column foundation pre-buried base plate (105) is arranged at the bottom of the bracket steel-pipe column thickening ring (107), pre-buried angle steel (103) and a pre-buried steel bar frame (104) are arranged below the double-column foundation pre-buried base plate (105), an upper flange plate (115) is arranged at the top of the bracket steel-pipe column (109), a plurality of bailey beam adjusting jacks (116) are symmetrically arranged on the upper flange plate (115), a bailey beam placing base plate (118) is arranged on the top surface of the bailey beam adjusting jack (116), a bailey beam placing base plate (118) is arranged at the upper part of the bailey beam placing base plate (118), a bailey beam (12) and an elevation adjusting base plate (118) is arranged between the bracket base plate (101) and the elevation adjusting base plate (118), when the base plate (118) is placed on the Bailey beam, a plurality of elevation adjusting triangular base plates (119) are fixed through triangular base plate fixing bolts (117), a short upright post end plate (120) is arranged on the top surface of the short upright post (114), a built-in steel reinforcement beam (121) is arranged on the top surface of the short upright post end plate (120), a short upright post upper end plate (123) is arranged on the periphery of the built-in steel reinforcement beam (121), the short upright post end plate (120) is in a groove shape, the short upright post end plate (120) and the short upright post upper end plate (123) are fixed through upper end plate connecting bolts (122), a sleeper (124) is arranged on the short upright post upper end plate (120), and the cast-in-place full framing (100) is arranged on the sleeper (124).
7. A method of constructing a cast-in-place concrete main arch triple angle steel arch formwork system as claimed in any one of claims 1 to 6, comprising the steps of:
Firstly, erecting a cast-in-situ bracket system, namely constructing a pier body (1), installing a short upright post (114) and a bracket steel pipe column (109), installing a bailey beam (101) on the bracket steel pipe column (109), and casting a concrete arch ring (22) after installing a cast-in-situ full framing (100);
Installing a left support truss (16) on the pier body (1), installing bearing I-steel (15) through installing a longitudinal elevation adjusting block (2), a transverse elevation adjusting block (19) and an adjusting jack (20), installing a steel arch frame hinged support (14) and a right support truss (8), and supporting one end of a steel arch frame (21);
Installing a section steel support frame, adjusting verticality through a section steel support frame upright post lower jack (56), adjusting levelness of a section steel support frame bearing beam (27) through an installation support frame upright post upper jack (40), installing a steel arch frame hinged support (14) and an auxiliary supporting frame (30), and supporting the other end of a steel arch frame (21);
Installing a hanging basket suspension casting system, namely sliding and installing a hanging basket on one side of a steel arch (21), and then installing a concrete arch ring bottom die (52) and an arch ring side die (57);
installing a water tank bracket system (90) on the steel arch (21), adjusting a vertical rod height adjusting sleeve (89) and a cross rod length adjusting sleeve (91) and installing a water tank (92);
And step six, pouring the concrete of the main arch ring, namely pouring the concrete of the main arch ring after the working procedures are finished.
8. The method according to claim 7, wherein in the first step, a double-column foundation (102) and a short column foundation (110) are sequentially constructed on the river bank, a short column (114) is installed on the short column foundation (110), a support steel pipe column thickening ring (107) and a flange plate (108) are installed on a double-column foundation embedded bottom plate (105), a flange plate stiffening plate (106) is welded on the flange plate (108), a support steel pipe column (109) is finally installed on the flange plate, a reinforcing truss system is arranged between the support steel pipe columns (109) on the two double-column foundations (102), a short column end plate (120) is installed on the top surface of the short column foundation (114), a built-in steel reinforcing beam (121) is installed on the short column end plate (120), a short column upper end plate (123) is installed, an upper end plate (122) is used for fixing, a sleeper (124) is installed on the short column upper end plate (120), a cast-in-place full-support (100) on the upper part of the short column foundation is installed on the flange plate (108), a flange plate (115) is installed on the upper end plate (115), and a triangular base plate (116) is installed by adjusting the level of the triangular base plate (117) according to the requirements, and then installing the Bailey beam (101) on the Bailey beam placing bottom plate (119), finally installing the rest cast-in-place full framing (100), and pouring the concrete arch ring (22).
9. The construction method of the cast-in-place concrete main arch three-angle steel arch formwork system according to claim 7, wherein in the second step, a left supporting truss (16) is installed on a pier body (1), a longitudinal elevation adjusting block (2), a transverse elevation adjusting block (19) and an adjusting jack (20) are installed on the pier body (1), then a bearing I-steel (15) is installed on the longitudinal elevation adjusting block (2), the transverse elevation adjusting block (19) and the adjusting jack (20), I-steel cross beams (11) are welded between the two bearing I-steel (15), a bearing I-steel stiffening plate (3) is synchronously constructed, a level gauge (12) and a steel arch hinged seat (14) provided with a hinged seat limiting plate (13) are installed on the bearing I-steel (15), a right supporting truss (8) is installed on one side, far away from the left supporting truss (16), of the bearing I-steel (15), the horizontal position of the I-steel is adjusted through the adjusting jack (20) according to the level gauge (12), the horizontal position of the I-steel is adjusted by the longitudinal elevation adjusting block (2) and the transverse elevation adjusting block (19), and then the three-angle steel arch is fixedly installed.
10. The construction method of the cast-in-place concrete main arch three-angle steel arch formwork system according to claim 7, wherein if a slidable triangular arch construction system is adopted, a main arch adjustable arch is adopted, firstly a sandbox base (78) is installed on a pier body (1), a sandbox (74) and a prefabricated base elevation adjusting jack (81) are installed on the sandbox base (78), then a prefabricated base (75) is installed on the upper portion of the prefabricated base elevation adjusting jack (81), the height of the prefabricated base (75) is adjusted through the prefabricated base elevation adjusting jack (81), sand (79) is filled into the sandbox (74) to be fixed, then a sliding base (77) is installed on the embedded I-steel (76), after the sliding base (77) slides to a specified position on the embedded I-steel (76), a steel hinge (21) is installed on a steel arch base (14) on the upper portion of the sliding base (77), after the concrete arch (22) is poured, sand (79) is released at the same time, and after the sliding of the steel arch (21) slides to the specified position, the concrete arch (22) is constructed next.
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| WO2022142193A1 (en) * | 2020-12-30 | 2022-07-07 | 中铁六局集团北京铁路建设有限公司 | Construction method for large-span thin-wall concrete sound barrier pouring trolley |
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| WO2022142193A1 (en) * | 2020-12-30 | 2022-07-07 | 中铁六局集团北京铁路建设有限公司 | Construction method for large-span thin-wall concrete sound barrier pouring trolley |
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