CN213203831U - Construction support combining suspended casting method 0# block cast-in-place support and temporary consolidation - Google Patents
Construction support combining suspended casting method 0# block cast-in-place support and temporary consolidation Download PDFInfo
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- CN213203831U CN213203831U CN202021666976.XU CN202021666976U CN213203831U CN 213203831 U CN213203831 U CN 213203831U CN 202021666976 U CN202021666976 U CN 202021666976U CN 213203831 U CN213203831 U CN 213203831U
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- 229910000831 Steel Inorganic materials 0.000 claims abstract description 231
- 239000010959 steel Substances 0.000 claims abstract description 231
- 239000004567 concrete Substances 0.000 claims abstract description 61
- 238000004873 anchoring Methods 0.000 claims description 27
- 238000003466 welding Methods 0.000 claims description 25
- 239000000725 suspension Substances 0.000 claims description 11
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- 238000013461 design Methods 0.000 abstract description 9
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- 230000015572 biosynthetic process Effects 0.000 abstract 1
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- 229910001294 Reinforcing steel Inorganic materials 0.000 description 3
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- 238000005259 measurement Methods 0.000 description 3
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- 239000003643 water by type Substances 0.000 description 1
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Abstract
The utility model discloses a cast-in-place support of method 0# piece of hanging to water and construction support that concrete combines together temporarily, including setting up the pier on the cushion cap, the both sides cross bridge sets firmly respectively with the cast-in-place roof beam and the cushion cap rigid connection of 0# piece through the anchor at both ends around the pier, between the steel pipe stand and between the pier shaft of steel pipe stand and pier through the parallel connection formation system. The utility model discloses a rigid structure, the connection of internal consolidation, make the cushion cap, the steel pipe stand forms one with the cast-in-place case roof beam of 0# piece and supports and concreties the system, the cast-in-place stage roof beam body of cantilever and the holistic stability of hanging the basket have been strengthened, its antidumping ability has been promoted, the steel pipe stand support frame of original 0# piece has effectively been utilized, the global design of 0# piece support has been simplified, and the dismantlement that concreties temporarily is comparatively swift, construction cycle has been shortened, hollow steel pipe recycle, construction cost has been practiced thrift, agree with green construction theory.
Description
Technical Field
The utility model relates to a bridge construction technical field, concretely relates to hang construction support that waters 0# piece cast-in-place support of method and temporary consolidation combined together.
Background
The temporary consolidation is one of important measures for ensuring the construction safety and stability of the continuous beam bridge cantilever, how to design the temporary consolidation enables the construction cost to be lower, the construction process to be simpler and more convenient, and the temporary consolidation is beneficial to the internal force, the disturbance degree and the stability of a bridge structure in the cantilever construction, which is an important problem in engineering design and construction control. The prior art generally adopts vertical concrete filled steel tube support + vertical prestressing steel beam temporary consolidation system to the heavier cantilever beam of roof beam body, but this consolidation system prestressing force construction is comparatively complicated, and the time limit for a project is longer, and concrete filled steel can't retrieve and recycle, and construction cost remains high.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a cast-in-place support of method 0# piece that hangs and concreties the construction support that combines together temporarily to solve the above-mentioned technical problem in the background art.
In order to achieve the technical purpose, the utility model adopts the following technical scheme:
a construction support combining a suspension casting method 0# block cast-in-place support and temporary consolidation comprises a pier arranged on a bearing platform, wherein a row of steel pipe upright columns are respectively and correspondingly arranged in the transverse bridge direction of the front side and the rear side of the pier, two ends of the top and the bottom of each steel pipe upright column are respectively and fixedly connected with a cast-in-place beam of the 0# block and the bearing platform through anchors, and a system is formed by parallel consolidation between the steel pipe upright columns and a pier body of the pier;
the anchoring facility comprises an embedded steel plate, a steel pipe anchor bar, a steel plate anchor bar and a steel bar net piece, wherein the embedded steel plate is embedded in a concrete structure of the top surface of a cast-in-place beam bottom surface or a bearing platform of a No. 0 block and is welded and fixed with the end part of a steel pipe stand column, the steel pipe anchor bar vertically penetrates through the embedded steel plate, one end of the steel pipe anchor bar is welded and fixed on the inner wall of the steel pipe stand column, the other end of the steel pipe anchor bar is anchored in the concrete structure, the middle part of the steel pipe anchor bar is welded and fixed with the embedded steel plate, the steel plate anchor bar is welded and fixed on one side, away from the steel pipe stand column, of the embedded steel plate in parallel with the embedded steel.
Preferably, in order to enhance the anchoring effect, concrete anchoring sections are poured into the two ends of the top and the bottom of the steel tube upright, and one end of the steel tube anchor bar welded and fixed on the inner wall of the steel tube upright is embedded into the concrete anchoring sections.
Preferably, the reinforcing mesh comprises three layers arranged at intervals.
Preferably, a stiffening plate is welded and fixed between the steel pipe upright post and the embedded steel plate.
Preferably, in order to guarantee the concrete pouring quality in the steel tube and guarantee the effective connection of the concrete anchoring section and the concrete structure outside the embedded steel plate, the middle part of the embedded steel plate is provided with a vibrating hole, the bottom surface of the concrete anchoring section at the top end of the steel tube stand column is provided with a plugging plate, and the plugging plate is welded and fixed with the steel tube stand column.
Preferably, the concrete anchoring section is poured with C50 concrete, and the pouring length is not less than 800 mm.
Preferably, the steel plate anchor bars are U-shaped round steel, and the connecting parts of the two U-shaped arms of the U-shaped round steel are welded and fixed with the embedded steel plates.
Preferably, be equipped with handrail built-in plate on the pier body, handrail built-in plate is close to one side of pier body and is passed through plug seam welding reinforcing bar and stretch into the pier body, keeps away from one side and the parallel connection welded fastening of pier body, the parallel connection adopts the I-steel preparation.
Preferably, the steel pipe upright is formed by welding and assembling steel pipes end to end, the steel pipes are axially consistent, and the interfaces of the adjacent steel pipes are arranged in a staggered manner.
Compared with the prior art, the beneficial effects of the utility model are that:
1. after the concrete is solidified, the No. 0 block and the steel pipe upright post bracket system are consolidated to form a system, the bearing platform and the steel pipe upright post form a rigid node through the concrete poured at the bottom of the steel pipe and the embedded steel bar, the steel pipe upright post and the cast-in-place box girder of the No. 0 block form a rigid node through the concrete poured at the top of the steel pipe and the embedded steel bar of the girder body, thereby forming a temporary consolidation system according to the relevant construction specification and the general design requirement without causing the premature stress of the permanent support, in the suspension casting process, the permanent support is considered to be not stressed, the suspension casting load and the unbalanced overturning bending moment are borne according to the temporary consolidation structure, through the connection of the rigid structure and the internal consolidation, a set of stable supporting and consolidation system is formed by the rigid structure and the internal consolidation, so that the stability of the whole beam body and the hanging basket in the cantilever cast-in-place stage is greatly enhanced, and the anti-overturning capability of the beam body and the hanging basket is greatly improved;
2. stress construction is not needed, the processes of steel pipe concrete construction and prestress dismantling of a vertical prestress steel beam temporary consolidation system are omitted, a bearing platform and a pier top embedded part are simplified, the construction flow is simplified, the construction progress is accelerated, and the construction period is shortened;
3. the original 0# block steel pipe upright post support frame is effectively utilized, the overall design of the 0# block support frame is simplified, the working procedures are simplified, the use efficiency of the steel pipe upright post is improved, and the construction cost is reduced;
4. the temporary consolidation is fast to remove, the construction period of the closure segment is shortened, the hollow steel pipe can be recycled, the construction cost is saved, and the construction method is in accordance with the green construction concept.
Drawings
The above and/or other aspects and advantages of the present invention will become more apparent and more readily appreciated from the detailed description taken in conjunction with the following drawings, which are given by way of illustration only and not by way of limitation, wherein:
fig. 1 is a schematic structural view of a construction support transverse bridge direction combining a suspension casting method 0# block cast-in-place support and temporary consolidation according to the utility model;
fig. 2 is a schematic structural view of a construction support along the direction of a bridge, wherein the construction support is formed by combining a suspension casting method 0# block cast-in-place support and temporary consolidation;
fig. 3 is a schematic structural view of a steel pipe column and bearing platform connecting node of a construction support combining a suspension casting method 0# block cast-in-place support and temporary consolidation;
fig. 4 is a schematic structural view of a steel pipe column and a 0# block connecting node of a construction support combining a suspension casting method 0# block cast-in-place support and temporary consolidation according to the present invention;
fig. 5 is a schematic structural view of a steel pipe column end anchoring node of a construction support combining a suspension casting method 0# block cast-in-place support and temporary consolidation;
fig. 6 is the structure schematic diagram of the pier of the construction support combined by the suspension casting method 0# block cast-in-place support and the temporary consolidation.
Reference numerals: 1-bearing platform, 2-bridge pier, 3-0# block, 4-steel tube upright post, 5-embedded steel plate, 6-vibrating hole, 7-steel tube anchor bar, 8-steel plate anchor bar, 9-reinforcing steel bar net piece, 10-plugging plate, 11-handrail embedded plate, 12-parallel connection, 13-stiffening plate, 14-concrete anchoring section, 15-corbel embedded plate, 16-corbel and 17-unloading block.
Detailed Description
Hereinafter, an embodiment of a construction bracket of the present invention, in which a suspended casting method 0# block cast-in-place bracket is combined with temporary consolidation, will be described with reference to the accompanying drawings. The embodiments described herein are specific embodiments of the present invention, and are intended to be illustrative of the concepts of the present invention, which are intended to be illustrative and exemplary, and should not be construed as limiting the scope of the embodiments of the present invention. In addition to the embodiments described herein, those skilled in the art will be able to employ other technical solutions which are obvious based on the disclosure of the claims and the specification of the present application, and these technical solutions include technical solutions which make any obvious replacement or modification for the embodiments described herein.
In the description of the present invention, it should be noted that the terms "top", "bottom", "inside", "outside", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention.
The drawings in the present specification are schematic views to assist in explaining the concept of the present invention, and schematically show the shapes of the respective portions and the mutual relationships thereof. It should be noted that for the sake of clarity in showing the structures of the various components of the embodiments of the present invention, the drawings are not drawn to the same scale. Like reference numerals are used to denote like parts.
The principles and features of the present invention are described below in conjunction with the following drawings, the illustrated embodiments are provided to explain the present invention and not to limit the scope of the invention. The preferred embodiments of the present invention will be described in further detail below with reference to fig. 1-6:
as shown in fig. 1-2, the utility model discloses a construction support combining a suspension casting method 0# block cast-in-place support and temporary consolidation, which comprises a pier 2 arranged on a bearing platform 1, a row of steel pipe upright columns 4 are respectively and correspondingly arranged in the transverse bridge directions of the front side and the rear side of the bridge pier 2, the steel pipe upright columns 4 are formed by welding and assembling steel pipes end to end, the steel pipes are axially consistent, the joints of the adjacent steel pipes are arranged in a staggered manner, the top and bottom ends of the steel pipe upright post 4 are respectively and rigidly connected with the cast-in-situ beam of the No. 0 block 3 and the bearing platform 1 through anchoring, as shown in fig. 6, a handrail embedded plate 11 is arranged on the pier body of the pier 2, one side of the handrail embedded plate 11 close to the pier body of the pier 2 is welded with a steel bar through a plug seam and extends into the pier body, one side far away from the pier body of the pier 2 is welded and fixed with a parallel connection 12 made of I-shaped steel, the steel pipe columns 4 and the pier bodies of the piers 2 are fixedly connected through parallel connection 12 made of I-steel to form a system;
as shown in fig. 3-5, the anchoring facility includes an embedded steel plate 5, a steel pipe anchor 7, a steel plate anchor 8 and a reinforcing mesh 9, the embedded steel plate 5 is embedded in the concrete structure of the cast-in-place beam bottom surface of the 0# block 3 or the top surface of the bearing platform 1, and is welded and fixed with the end portion of the steel pipe upright post 4, in order to enhance the stability of the connection node of the end portion of the steel pipe upright post 4, a stiffening plate 13 is welded and fixed between the steel pipe upright post 4 and the embedded steel plate 5, the steel plate anchor 8 is a U-shaped round steel, the connection portion of the two U-shaped arms of the U-shaped round steel is welded and fixed on one side of the embedded steel plate 5 away from the steel pipe upright post 4 and anchored in the concrete structure, the steel pipe anchor 7 vertically penetrates through the embedded steel plate 5, one end is welded and fixed on the inner wall of the steel pipe upright post 4, the other end is, concrete anchoring sections 14 are poured at two ends of the top and the bottom of the inner wall of the steel tube upright 4, one end of each steel tube anchor bar 7 welded and fixed on the inner wall of the steel tube upright 4 is embedded into the concrete anchoring section 14, in order to facilitate the pouring construction of the concrete anchoring section 14 at the top end of the steel tube upright 4, a plugging plate 10 is arranged at the bottom surface of the concrete anchoring section 14 at the top end of the steel tube upright 4, the plugging plate 10 is welded and fixed with the steel tube upright 4, in order to ensure the concrete pouring quality in the steel tube upright 4 and the effective connection between the concrete anchoring section 14 and the concrete structure outside the embedded steel plate 5, a vibrating hole 6 is arranged in the middle of the embedded steel plate 5, the concrete of the concrete anchoring section 14 is vibrated in place through the vibrating hole 6, C50 concrete is poured into the concrete anchoring section 14, the pouring length is not less than 800mm, three layers of the reinforcing mesh sheets 9 are arranged at intervals and are parallel to the concrete structure of the embedded steel plate 5 at, and is welded and fixed with the steel plate anchor bars 8 and the steel pipe anchor bars 7.
The specific construction process of the utility model comprises the following steps,
the method comprises the following steps: the design of a No. 0 block 3 cast-in-place support is mainly divided into a template system, an I-shaped steel bent frame, an I-shaped steel longitudinal beam, a double-spliced I-shaped steel bearing beam, a dumping block 17, a steel pipe upright post 4 and the like from top to bottom;
step two: the temporary consolidation design of the No. 0 block 3 is that C50 concrete is poured into a section of 800mm up and down in the No. 0 block 3 support steel pipe upright post 4, the upper end of the section is anchored below a web plate of a No. 0 block 3 main beam, the lower end of the section is anchored with the top of a bearing platform 1, a reinforcing steel bar is stretched into an anchoring part and welded with the steel pipe upright post 4 by adopting an embedded steel plate 5, and a stiffening plate 13 is welded on the outer side of the steel pipe upright post 4;
step three: checking calculation of a No. 0 block 3 cast-in-place support, establishing a Madass model, and checking calculation of the axial force and the bending moment of a support steel pipe upright post 4, the bearing capacity of an embedded part and the strength of a primary beam and a secondary beam;
step four: checking and calculating a No. 0 block 3 temporary consolidation, establishing a Madass model, calculating a stress model established by a temporary consolidation system to know that two supports are not subjected to tension and mainly bear unbalanced load and vertical load, substituting the unparallel load and the vertical load during cantilever beam construction for checking and calculating, and selecting a steel pipe upright column 4 and an embedded part with proper specifications according to a checking and calculating result;
step five: constructing and anchoring an embedded steel plate 5 on a bearing platform 1, wherein before the bearing platform 1 is poured, the embedded steel plate 5 and a steel bar are installed on the top of the bearing platform 1 in advance to be used as temporary consolidation of a steel pipe upright post 4 support, embedded parts are symmetrically arranged along the central line of a circuit, eight U-shaped round steels are welded on the lower portion of the embedded steel plate 5, the steel bar and the embedded steel plate 5 are welded to require double-sided welding, the height of a welding leg is not less than 12mm, the length of the welding line is 160mm, the welding line is full, current is controlled, main bars are not burnt, the positions of various embedded parts are required to be paid attention to before concrete pouring, interference on the embedded parts is avoided in the vibrating process, the bearing platform 1 is paid attention to maintenance, and before the strength;
step six: installing steel pipe upright columns 4, installing the steel pipe upright columns 4 on a bearing platform 1, chiseling cement paste on the surfaces of embedded steel plates 5 before installation, discharging cross lines, hoisting upright steel pipes, adjusting the verticality and the plane position of the steel pipes, spot-welding the steel pipes with the embedded steel plates 5, installing stiffening plates 13, welding the steel pipes with the stiffening plates 13, closely adhering the steel pipes with the embedded steel plates 5, filling the steel pipes with welding seams when gaps exist, axially aligning steel pipe joints, arranging adjacent steel pipe joints in a staggered manner, butt-welding the steel pipes firstly, then binding and welding the steel plates, wherein the quality of the welding seams meets the requirement, and pouring C50 concrete with the thickness of 800mm in the steel pipes after the steel pipes are installed to enable the steel pipes to be fixedly connected with the bearing platform 1;
step seven: pier 2 pier body construction and anchoring steel plate pre-embedding, accurately installing the pre-embedded steel plate of the pier body in the pier body construction process, after pouring of the pier body is completed, the pier body and the temporary support are fixedly connected into a whole through the flat connection 12, the anti-overturning capacity of the pier body is enhanced, the embedded steel plates of the pier body are divided into two types, the handrail embedded plate 11 and the bracket embedded plate 15 are welded, the handrail embedded plate 11 is welded with the flat connection 12, the bracket embedded plate 15 and the bracket 16 are welded to form a support erecting crossbeam, reinforcing steel bars need to be welded on the handrail embedded plate 11 through plug seam welding and extend into the pier body to ensure the reliability of connection with the pier body, the bracket embedded plate 15 is provided with straight ribs and bent ribs to ensure the reliability of connection with the pier body, one ends of the straight ribs are welded on the bracket embedded plate 15 through plug seam welding, the other ends of the straight ribs extend into the pier body, the vertical sections of the bent ribs are fixed on the bracket embedded plate 15 through double-side welding, and the bent sections of the bent ribs extend;
step eight: the steel pipe upright post 4 connecting system is installed, the steel pipe upright post 4 connecting system is divided into a steel pipe upright post 4 connecting system and a steel pipe upright post 4 and pier body connecting system of the pier 2, the pier body and the steel pipe upright post 4 are supported to form a whole by the connecting system, the anti-overturning capacity of the supporting system is greatly enhanced, the connecting system is realized by adopting a parallel connection 12, the level needs to be kept, and the elevation needs to be accurately controlled;
step nine: the method comprises the steps that a main beam and a secondary beam at the top of a support are installed, the elevation needs to be accurately controlled when a steel pipe bracket 16 is installed, the height is guaranteed to be on the same horizontal line, the elevation of a No. 0 block 3 is guaranteed to meet requirements, a semi-finished support is processed in a factory and is assembled and welded after being transported to the site, welding quality needs to be guaranteed, the intersecting line of a tripod 12 and the bracket 16 and a steel pipe upright post 4 is lofted in the factory, lofting size needs to be accurate, the semi-finished support is guaranteed to be closely attached to the steel pipe upright post 4, the welding quality on the site is guaranteed, the elevation position is set in advance before installation, errors are prevented, the elevation is adjusted by using a double-spliced a 16I-steel as a relief block 17 at the fulcrum position of a main cross beam, small steel plates are arranged on the relief block 17 in a cushioning mode to increase the stress area;
step ten: constructing a No. 0 block 3 and anchoring a beam bottom embedded steel plate 5, welding an anchor bar and a plugging plate 10 on the top of a steel tube upright 4, welding a reinforcing mesh 9 and an embedded steel plate 5 at the bottom elevation of the No. 0 block 3 cast-in-place beam on the top of the steel tube upright 4, wherein concrete needs to be poured, then pouring C50 concrete, wherein the concrete can be poured in a self-unloading mode, the steel tube upright 4 and the top embedded steel plate 5 are subjected to spot welding, a stiffening plate 13 is arranged at the joint, the steel tube upright 4 and the embedded steel plate 5 are closely attached, when a gap exists, the gap is filled by using a welding seam, the quality of the welding seam meets the requirement, after the support is pre-pressed, the template installation is carried out, the whole set of the No. 0 block 3 and the No. 1 block template is composed of an outer mold, a bottom mold, an inner mold and an end mold, a longitudinal distribution rib is reserved on the end mold and penetrates out of the notch and a corrugated pipe, a, before the concrete of the No. 0 block 3 of the box girder is poured, the setting of a hanging basket construction reserved hole is carried out, the pre-buried PVC pipe is adopted for reservation, the concrete of the No. 0 block 3 of the box girder is poured at one time, a hole is formed on a top plate, a concrete delivery pump hose is directly extended into the vicinity of a bottom plate for discharging so as to avoid interference on a template and a pre-buried part, after the concrete is solidified, the No. 0 blocks 3 and the No. 1 blocks are fixedly connected with a bracket system, a bearing platform 1 and a steel pipe upright post 4 form a rigid node through the concrete poured at the bottom of the steel pipe upright post 4 and pre-buried steel bars, the steel pipe upright post 4 and a cast-in-situ box girder form a rigid node through the concrete poured at the top of the steel pipe upright post 4 and the beam pre-buried steel bars, thereby forming a temporary fixed system, according to related construction specifications and general design requirements, and not causing the permanent support to be stressed too, the temporary consolidation structure bears the cantilever load and unbalanced overturning bending moment, and a set of stable supporting and consolidation system is formed by the rigid structure and the internal consolidation, so that the stability of the whole body of the beam body and the hanging basket in the cantilever cast-in-place stage is greatly enhanced, and the anti-overturning capability of the beam body and the hanging basket is greatly improved;
step eleven: removing the bottom die of the No. 0 block 3, removing the bottom die of the No. 0 block 3 after the longitudinal prestress tensioning of the No. 0 block 3 is completed, removing the connection node of the unloading block 17 and the bent frame, and then removing the bent frame, the longitudinal beam and the bottom die of the No. 0 block 3 in sequence, wherein after the removal of the bottom die is completed, a temporary consolidation system of the No. 0 block 3 is formed, and the temporary consolidation of the No. 0 block 3, the bearing platform 1 and the steel pipe upright post 4 plays a role in balancing unbalance force generated in the cantilever pouring process;
step twelve: the temporary consolidation system is dismantled, after the side span and the midspan are folded, the temporary consolidation system can be dismantled to perform second system conversion of the bridge, the bridge structure is changed from simple support to continuous, the temporary consolidation system finishes work at the moment, the temporary consolidation reinforced concrete chiseling is difficult, a water drill with the diameter of 50-100 mm is required to be used for cutting, then an air pick is used for chiseling, the underwater consolidation part can be dismantled to send water for underwater cutting operation, the concrete part poured at the bottom of the steel pipe upright post 4 can not be broken under the condition that navigation is not affected, the steel pipe upright post 4 can be used in a turnover mode after being dismantled, and the utilization rate of materials is improved.
Application example:
the Shanbei Daokou (Fengdong) Longhu section outer Shahe super bridge project of the Shantou city is positioned in the Han river area of the Shantou city Chenghai region, the total length of the bridge is 1919m, the bridge position spans the Han river branch outer Shahe, the width of the river surface is about 450 m, the Shanbei Daokou (Fengdong) Longhu section project of the Shantou city (K23 + 324-K31 + 126.61), the main bridge section is an overwater bridge operation section, and the main bridge is a (40+70+70+40) cantilever cast-in-place beam, the drawing suggests that a vertical concrete-filled steel tube support and vertical prestressed steel beam temporary consolidation system is adopted, considering that the prestress construction of the consolidation system is complex, the construction period is long, the concrete-filled steel tube cannot be recycled, the project part optimizes the temporary consolidation system, a 0# block 3 cast-in-place support steel tube upright post 4 is utilized to be consolidated with a bearing platform 1 and a 0# block 3 beam bottom, and the transformed steel tube upright post 4 support is used as a hanging basket construction temporary consolidation system and a 0# block 3 cast-in-place support.
And (3) construction period measurement: the vertical supporting steel pipe + vertical prestressed steel beam temporary consolidation system is the same as the steel pipe support design used by using a 0# block 3 steel pipe upright post 4 cast-in-place support as the temporary consolidation system, so that the 0# block 3 steel pipe upright post 4 cast-in-place support as the temporary consolidation system is opposite to the vertical supporting steel pipe + vertical prestressed steel beam temporary consolidation system, the steel pipe concrete and prestressed construction and dismantling processes of the vertical prestressed steel beam temporary consolidation system are saved, a main bridge of an external sand river super bridge is a continuous box girder, three piers in the left and right width are respectively constructed by adopting the steel pipe upright post 4 support in a cast-in-place manner, the support adopts the steel pipe upright post 4 with the diameter of 1016mm and the thickness of 14mm to bear the weight, four steel pipe uprights 4 are arranged in each row of a transverse bridge and supported under webs of main girders on two sides of a pier, C50 concrete is poured into the steel pipe, the, the stiffening plates 13 are welded on the outer sides, I-shaped steel is used as a longitudinal and transverse connecting system in the middle, the stiffening plates are attached to piers, and the temporary supports are combined with the anchoring system, so that the construction process is successfully simplified, the construction progress is accelerated, and the construction period is saved for 24 days in the construction process of temporary consolidation and support of six main bridges on the left and right sides;
economic measurement (two construction schemes of temporary consolidation of No. 29 pier of extra-large sand river bridge outside Longhu section are used for measurement and comparison):
TABLE 1 temporary consolidation prestressed steel pipe concrete column material quantity table
TABLE 2 temporary consolidation embedded part material quantity table
TABLE 3 economic comparison table for two consolidation support systems
Comparing tables 1-3, it can be seen that after the support system is combined with the temporary consolidation, compared with the original scheme, a part of embedded parts are added, the using amount of the steel pipes is consistent with the original scheme, the concrete in the steel pipes is saved, and the total cost is reduced by 1589012.21 yuan.
The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.
Claims (9)
1. The utility model provides a construction support that cast-in-place support of suspension casting method 0# piece and temporary consolidation combined together which characterized in that: the steel pipe pile foundation structure comprises bridge piers (2) arranged on a bearing platform (1), wherein a row of steel pipe columns (4) are correspondingly arranged in the transverse bridge directions of the front side and the rear side of each bridge pier (2), the top ends and the bottom ends of the steel pipe columns (4) are respectively and fixedly connected with cast-in-place beams of 0# blocks (3) and the bearing platform (1) through anchors, and a system is formed by the steel pipe columns (4) and the pier bodies of the bridge piers (2) through parallel connection (12) in a solidifying mode;
the anchoring facility comprises an embedded steel plate (5), a steel pipe anchor bar (7), a steel plate anchor bar (8) and a reinforcing mesh (9), the embedded steel plate (5) is embedded in a concrete structure at the bottom surface of a cast-in-place beam of the 0# block (3) or at the top surface of the bearing platform (1), and is welded and fixed with the end part of the steel pipe upright post (4), the steel pipe anchor bar (7) vertically penetrates through the embedded steel plate (5), one end is welded and fixed on the inner wall of the steel pipe upright post (4), the other end is anchored in the concrete structure, the middle part is welded and fixed with the embedded steel plate (5), the steel plate anchor bars (8) are welded and fixed on one side of the embedded steel plate (5) far away from the steel pipe upright post (4) and are anchored in the concrete structure, the steel bar net piece (9) is parallel to the embedded steel plate (5), embedded in a concrete structure on one side, away from the steel pipe upright post (4), of the embedded steel plate (5), and is welded and fixed with the steel pipe anchor bars (7) and the steel plate anchor bars (8).
2. The construction support combining the suspended casting method 0# block cast-in-place support and the temporary consolidation as claimed in claim 1, characterized in that: concrete anchoring sections (14) are poured at the two ends of the top and the bottom in the steel tube upright post (4), and one end of the steel tube anchor bar (7) welded and fixed on the inner wall of the steel tube upright post (4) is embedded into the concrete anchoring sections (14).
3. The construction support combining the suspended casting method 0# block cast-in-place support and the temporary consolidation as claimed in claim 1, characterized in that: the reinforcing mesh (9) comprises three layers arranged at intervals.
4. The construction support combining the suspended casting method 0# block cast-in-place support and the temporary consolidation as claimed in claim 1, characterized in that: and a stiffening plate (13) is welded and fixed between the steel pipe upright post (4) and the embedded steel plate (5).
5. The construction support combining the suspended casting method 0# block cast-in-place support and the temporary consolidation as claimed in claim 2, characterized in that: the concrete anchor is characterized in that a vibrating hole (6) is formed in the middle of the embedded steel plate (5), a plugging plate (10) is arranged on the bottom surface of a concrete anchor section (14) at the top end of the steel pipe upright post (4), and the plugging plate (10) is welded and fixed with the steel pipe upright post (4).
6. The construction support combining the suspended casting method 0# block cast-in-place support and the temporary consolidation as claimed in claim 2, characterized in that: c50 concrete is poured into the concrete anchoring section (14), and the pouring length is not less than 800 mm.
7. The construction support combining the suspended casting method 0# block cast-in-place support and the temporary consolidation as claimed in claim 1, characterized in that: the steel plate anchor bars (8) are U-shaped round steel, and the connecting parts of the two U-shaped arms of the U-shaped round steel are welded and fixed with the embedded steel plates (5).
8. The construction support combining the suspended casting method 0# block cast-in-place support and the temporary consolidation as claimed in claim 1, characterized in that: be equipped with handrail built-in plate (11) on pier (2) pier body, handrail built-in plate (11) are close to one side of pier (2) pier body and are passed through plug seam welding reinforcing bar and stretch into in the pier body, keep away from one side and the parallel connection (12) welded fastening of pier (2) pier body, parallel connection (12) adopt the I-steel preparation.
9. The construction support combining the suspended casting method 0# block cast-in-place support and the temporary consolidation as claimed in claim 1, characterized in that: the steel pipe upright columns (4) are formed by welding and assembling steel pipes end to end, the steel pipes are axially consistent, and the interfaces of the adjacent steel pipes are arranged in a staggered mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021666976.XU CN213203831U (en) | 2020-08-12 | 2020-08-12 | Construction support combining suspended casting method 0# block cast-in-place support and temporary consolidation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021666976.XU CN213203831U (en) | 2020-08-12 | 2020-08-12 | Construction support combining suspended casting method 0# block cast-in-place support and temporary consolidation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213203831U true CN213203831U (en) | 2021-05-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021666976.XU Expired - Fee Related CN213203831U (en) | 2020-08-12 | 2020-08-12 | Construction support combining suspended casting method 0# block cast-in-place support and temporary consolidation |
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| Country | Link |
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| CN (1) | CN213203831U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113832840A (en) * | 2021-08-26 | 2021-12-24 | 广州市公用事业规划设计院有限责任公司 | Double-wall hollow pier column top support connecting node and construction method |
| CN115075120A (en) * | 2022-07-08 | 2022-09-20 | 北京城建道桥建设集团有限公司 | Continuous beam No. 0 block oblique crossing orthogonal system and construction method thereof |
-
2020
- 2020-08-12 CN CN202021666976.XU patent/CN213203831U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113832840A (en) * | 2021-08-26 | 2021-12-24 | 广州市公用事业规划设计院有限责任公司 | Double-wall hollow pier column top support connecting node and construction method |
| CN113832840B (en) * | 2021-08-26 | 2023-08-22 | 广州市城建规划设计院有限公司 | A double-wall hollow pier column top support connection node and construction method |
| CN115075120A (en) * | 2022-07-08 | 2022-09-20 | 北京城建道桥建设集团有限公司 | Continuous beam No. 0 block oblique crossing orthogonal system and construction method thereof |
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Granted publication date: 20210514 |