CN112144378A - Beam-column type ground beam and construction method thereof - Google Patents
Beam-column type ground beam and construction method thereof Download PDFInfo
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- CN112144378A CN112144378A CN202011010281.0A CN202011010281A CN112144378A CN 112144378 A CN112144378 A CN 112144378A CN 202011010281 A CN202011010281 A CN 202011010281A CN 112144378 A CN112144378 A CN 112144378A
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- 238000010276 construction Methods 0.000 title claims description 39
- 239000004574 high-performance concrete Substances 0.000 claims abstract description 23
- 239000002184 metal Substances 0.000 claims abstract description 22
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 19
- 239000010959 steel Substances 0.000 claims abstract description 19
- 229910001294 Reinforcing steel Inorganic materials 0.000 claims description 32
- 239000011374 ultra-high-performance concrete Substances 0.000 claims description 12
- 230000003014 reinforcing effect Effects 0.000 claims description 6
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 238000000034 method Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 3
- 229910052799 carbon Inorganic materials 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000009417 prefabrication Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 239000011440 grout Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 210000003205 muscle Anatomy 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
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Classifications
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/06—Arrangement, construction or bridging of expansion joints
- E01D19/067—Flat continuous joints cast in situ
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/12—Grating or flooring for bridges; Fastening railway sleepers or tracks to bridges
- E01D19/125—Grating or flooring for bridges
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D27/00—Foundations as substructures
- E02D27/10—Deep foundations
- E02D27/12—Pile foundations
-
- 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
- E01D2101/26—Concrete reinforced
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- Engineering & Computer Science (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Architecture (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- General Engineering & Computer Science (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention discloses a beam-column type floor beam which is characterized by comprising a longitudinal beam, wherein a bridge deck is formed at the upper part of the longitudinal beam, an upright post or a pile foundation is arranged at the lower end of the longitudinal beam, a metal corrugated pipe is embedded in an opening in the longitudinal beam, section steel or a beam rib is arranged at the top of the upright post or the pile foundation, the section steel or the beam rib at the top of the upright post or the pile foundation is inserted into the metal corrugated pipe embedded in the longitudinal beam, and high-performance concrete is poured in a hole. Aiming at the traditional cast-in-place floor beam, the invention simplifies the structure of the floor beam, makes the structure of the floor beam simpler and more transparent, is easier for industrialized and standardized production, and is convenient for manufacturing, transporting and erecting.
Description
Technical Field
The invention relates to the technical field of beam-column type floor beams, in particular to a beam-column type floor beam and a construction method thereof.
Background
In the construction of urban viaducts, the road-bridge joints increasingly adopt the structural form of a ground beam, and particularly in areas needing strict control over settlement, such as adjacent rail traffic, important pipelines and the like, the pile foundation is preferably considered when the bridge falls to the ground. The ground beam is adopted, so that the filling height behind the abutment can be effectively reduced, the filling is replaced by a structure, the problem of bumping at the bridge head is thoroughly solved, and the influence on surrounding structures is reduced.
A conventional cast-in-place floor beam is shown in fig. 1 and is composed of a bridge deck 3 and a support structure. A plurality of longitudinal beam ribs and a plurality of cross beams are formed below the bridge deck in a staggered mode, and the supporting structure is a bearing platform below the joint of the longitudinal beam ribs and the cross beams and a foundation of the bottom of the bearing platform. In the figure, 21 is a cross beam, 22 is a web, 23 is a tie beam, 24 is a ground beam, and 25 is a pile foundation.
The construction mode of traditional floor beam uses cast-in-place as the main, and work such as support setting up, reinforcement bar ligature need be carried out to a large amount of manual works on the scene, and the construction cycle is long, and dangerous high and inefficiency is great to the influence of surrounding environment and road traffic simultaneously. The structure of the floor beam is simplified, the prefabricated assembly construction is realized, the field erection of a support is avoided, and the method is an effective means for accelerating the construction speed, reducing the field pollution and realizing the low-carbon construction.
Therefore, we propose a beam-column type floor beam and a construction method thereof.
Disclosure of Invention
In order to overcome the defects of the traditional cast-in-place floor beam, the invention aims to provide a beam-column type floor beam which is simpler in structure and more convenient and faster to construct and a construction method thereof.
In order to solve the technical problem, the invention is solved by the following technical scheme: the utility model provides a beam column type beam that lands, its characterized in that beam column type beam that lands includes the longeron, longeron upper portion forms the decking, the longeron lower extreme is provided with stand or pile foundation, the pre-buried metal bellows of trompil in the longeron, and shaped steel or lacing bar are established at stand or pile foundation top, and stand or pile foundation top shaped steel or lacing bar insert the pre-buried metal bellows in the longeron, and downthehole high performance concrete that pours.
Furthermore, a straight hole is formed in the longitudinal beam, a groove is formed in the bottom of the longitudinal beam through the straight hole, a metal corrugated pipe is embedded in the straight hole, a grouting hole is formed in the upper end of the longitudinal beam, and after the section steel or the beam rib at the top of the upright column or the pile foundation is inserted into the metal corrugated pipe, high-performance concrete is poured into the grooves in the bottom of the metal corrugated pipe and the bottom of the longitudinal beam through the grouting hole.
Furthermore, the horizontal bridge of the column type floor beam is divided into a plurality of longitudinal beams, the upper horizontal bridge of each longitudinal beam is provided with a cantilever arm to form a bridge deck, a horizontal wet joint is reserved between adjacent bridge deck plates, the cantilever arm of each bridge deck plate is reserved with a ring-shaped steel bar, the ring-shaped steel bars between the adjacent bridge deck plates are arranged in a staggered mode, and high-performance concrete or ultrahigh-performance concrete is poured into the horizontal wet joint.
Furthermore, the column type floor beam is longitudinally divided into a plurality of longitudinal beams, longitudinal wet joints are reserved between the adjacent longitudinal beams, annular reinforcing steel bars are reserved on the bridge deck, the annular reinforcing steel bars between the adjacent bridge deck plates are arranged in a staggered mode, rectangular closed reinforcing steel bars are reserved on the longitudinal beams, the rectangular closed reinforcing steel bars between the adjacent longitudinal beams are arranged in a staggered mode, and high-performance concrete or ultrahigh-performance concrete is poured into the longitudinal wet joints.
Furthermore, the upper surface of the upright post or the pile foundation is provided with a thick rubber ring, the thick rubber ring is positioned between the upper surface of the upright post or the pile foundation and the bottom of the longitudinal beam, and the thick rubber ring is used for adjusting the longitudinal slope and the transverse slope; while preventing leakage of grout.
Furthermore, when high-performance concrete is adopted, the width of a wet joint is more than or equal to 12.5d +50mm, and d is the diameter of the annular steel bar; when the ultra-high performance concrete is adopted, the width of the wet joint is more than or equal to 7.5d +50mm, and d is the diameter of the annular reinforcing steel bar.
A construction method of a beam-column type ground beam is characterized by comprising the following steps:
s1, dividing the horizontal bridge direction of the floor beam structure into a plurality of longitudinal beams, and temporarily connecting the longitudinal beams to the upright posts or the pile foundations by using carrying pole beams, wherein the longitudinal beams are temporarily supported on the carrying pole beams for construction;
s2, splicing a plurality of longitudinal beams arranged in the transverse bridge direction into a whole, reserving wet joints between bridge decks of the adjacent longitudinal beams, reserving annular reinforcing steel bars between cantilever arms of the bridge decks, arranging the annular reinforcing steel bars between the adjacent bridge decks in a staggered mode, and pouring high-performance concrete or ultrahigh-performance concrete into the wet joints;
s3, pre-burying a metal corrugated pipe through an inner hole of the longitudinal beam, arranging a thick rubber ring on the upper surface of the upright post or the pile foundation, inserting section steel or a bundle rib at the top of the upright post or the pile foundation into the metal corrugated pipe, and pouring high-performance concrete to enable the longitudinal beam and the upright post or the pile foundation to be connected into a whole;
and S4, dismantling the construction carrying pole beam.
A construction method of a beam-column type ground beam is characterized by comprising the following steps:
s1, dividing the floor beam structure into a plurality of longitudinal beams longitudinally, and temporarily connecting the longitudinal beams to the upright posts or the pile foundations by using carrying pole beams, wherein the longitudinal beams are temporarily supported on the carrying pole beams for construction;
s2, splicing a plurality of longitudinal beams which are longitudinally arranged into a whole, reserving wet joints between the adjacent longitudinal beams, reserving annular reinforcing steel bars on the bridge deck, arranging the annular reinforcing steel bars between the adjacent bridge deck in a staggered manner, reserving rectangular closed reinforcing steel bars on the longitudinal beams, arranging the rectangular closed reinforcing steel bars between the adjacent longitudinal beams in a staggered manner, and pouring high-performance concrete or ultrahigh-performance concrete into the wet joints;
s3, pre-burying a metal corrugated pipe through an inner hole of the longitudinal beam, arranging a thick rubber ring on the upper surface of the upright post or the pile foundation, inserting section steel or a bundle rib at the top of the upright post or the pile foundation into the metal corrugated pipe, and pouring high-performance concrete to enable the longitudinal beam and the upright post or the pile foundation to be connected into a whole;
and S4, dismantling the construction carrying pole beam.
The present invention standardizes the construction of stringers. Compared with the traditional cast-in-place floor beam, the beam column type floor beam has the advantages of simpler and more transparent structure, lower economic index, easier industrialized and standardized production, and convenient manufacture, transportation and erection. The standardization of the structure of the longitudinal beam of the floor beam unifies the structural types of the boundary beam and the middle beam, the cantilever arm has consistent type and flat sections, so that the template of the longitudinal beam is suitable for both the boundary beam and the middle beam, the construction of the boundary beam and the middle beam can be realized by only adjusting the length of the flat sections of the cantilever arms for different bridge widths, and the construction of the boundary beam and the middle beam can be realized by adopting the same template. Compared with the traditional cast-in-place floor beam, the beam column type floor beam and the construction method thereof have the following advantages: structurally, a cross beam, a transverse clapboard, a web plate, a ground beam and a tie beam are omitted, and the structure of the longitudinal beam is standardized, so that the structure of the ground beam is simpler and more transparent, and the economic index is lower. The floor beam is split into the longitudinal beam and the upright column which are all miniaturized components, and the components are assembled through different connection methods, so that the construction speed is accelerated, the field pollution is reduced, and the low-carbon construction is realized.
Drawings
Fig. 1 is a structural schematic view of a conventional cast-in-place floor beam.
Fig. 2 is an elevation view of a beam column floor beam structure.
Figure 3 is a cross-sectional view of a double stringer of a beam and pillar type floor beam structure.
Figure 4 is a multi-stringer cross-section of a beam and column type floor beam structure.
Fig. 5 is a schematic diagram of a first splitting manner in this embodiment.
Fig. 6 is an elevation view of a first connection method in the present embodiment.
Fig. 7 is a cross-sectional view of fig. 6.
Fig. 8 is a schematic diagram of a second splitting manner in this embodiment.
Fig. 9 is a schematic diagram of a second connection method in the present embodiment.
In the figure: 1 longeron, 2 stands (pile foundation), 3 decking, 4 corrugated metal pipe, 5 longeron are dug the hole, 6 thick rubber strips, 7 temporary supports, 8 construction are with carrying pole roof beam, 9 annular reinforcing bars, 10 shaped steel (or lacing wire), 11 annular reinforcing bars staggered arrangement, 12 rectangle closed reinforcing bars, 13 rectangle closed reinforcing bars staggered arrangement.
Detailed Description
The conception, the specific structure and the technical effects of the present invention will be further described with reference to the accompanying drawings to fully understand the objects, the features and the effects of the present invention.
Examples
As shown in fig. 2, the beam-column type floor beam basic member of the present invention comprises a longitudinal beam (including a bridge deck) 1, and a vertical column (pile foundation) 2 is arranged at the lower end of the longitudinal beam (including the bridge deck) 1. Comparing fig. 1 and fig. 2, it can be seen that the beam column type floor beam of the invention cancels the beam, diaphragm, web, floor beam and tie beam of the traditional cast-in-place floor beam, standardizes the structure of the longitudinal beam, unifies the structure types of the boundary beam and the middle beam, the cantilever arm type is consistent and a flat section is left, so that the template of the longitudinal beam is suitable for both the boundary beam and the middle beam, for different bridge widths, the construction of the boundary beam and the middle beam can be realized by only adjusting the length of the flat section of the cantilever arm, and the same template is adopted for the construction of the boundary beam and the middle beam.
The construction method of the beam column type ground beam is solved by the following technical scheme:
in the first mode, as shown in fig. 3 to 4, the floor beam structure is divided into longitudinal beams (including deck plates) 1+ vertical columns (piles) 2 in the transverse direction. The construction spreader beam 8 is temporarily connected to the column (pile foundation) 2, and the longitudinal beam 1 is temporarily supported by the construction spreader beam 8. Wet joints are reserved among the bridge deck boards of the longitudinal beams 1, annular reinforcing steel bars 9 are reserved on cantilever arms of the bridge deck boards, the annular reinforcing steel bars among the adjacent bridge deck boards are arranged in a staggered mode 11, and C60 high-performance concrete (the width of the wet joints is not less than (12.5 d + 50) mm, d is the diameter of the reinforcing steel bars) or UHPC150 ultrahigh-performance concrete (the width of the wet joints is not less than (7.5 d + 50) mm, and d is the diameter of the reinforcing steel bars) is poured into the wet joints. The pre-buried corrugated metal pipe 4 of trompil 5 on the longeron, 2 top shaped steel of stand (pile foundation) or restraint muscle 10 insert corrugated metal pipe 4 in, stand (pile foundation) 2 upper surface sets up thick rubber circle 6, downthehole C60 high performance concrete of pouring.
In the second mode, as shown in fig. 5 to 6, the floor beam structure is divided longitudinally into longitudinal beams (including deck boards) 1+ vertical columns (pilings) 2. The construction spreader beam 8 is temporarily connected to the column (pile foundation) 2, and the longitudinal beam 1 is temporarily supported by the construction spreader beam 8. The method comprises the following steps of reserving wet joints between longitudinal beams 1, reserving annular reinforcing steel bars 9 on bridge deck boards, arranging the annular reinforcing steel bars between adjacent bridge deck boards in a staggered mode 11, reserving rectangular closed reinforcing steel bars 12 on the longitudinal beams, arranging the rectangular closed reinforcing steel bars between the adjacent longitudinal beams in a staggered mode 13, and pouring C60 high-performance concrete (the width of the wet joints is more than or equal to (12.5 d + 50) mm, d is the diameter of the reinforcing steel bars) or UHPC150 ultrahigh-performance concrete (the width of the wet joints is more than or equal to (7.5 d + 50) mm, and d is the diameter of the reinforcing steel. The pre-buried metal bellows 4 of trompil 5 on the longeron, stand (pile foundation) 2 is connected with longeron 1 with shaped steel or lacing wire 10, and stand (pile foundation) 2 upper surface sets up thick rubber circle 6, pours C60 high performance concrete in the hole.
In this embodiment, only the prefabrication method and the construction method of the ground beam with double longitudinal beams are described, and the prefabrication method and the construction method of the ground beam with multiple longitudinal beams are the same as those of the double longitudinal beams. The theory of operation of this embodiment is simple, with the split of the structure of the floor beam into longeron (including decking) and stand (pile foundation), reserves the steel bar connection between the component, adopts high performance concrete or ultra-high performance pouring wet seam.
The foregoing detailed description of the preferred embodiments of the invention has been presented. It should be understood that numerous modifications and variations could be devised by those skilled in the art in light of the present teachings without departing from the inventive concepts. Therefore, the technical solutions available to those skilled in the art through logic analysis, thrust or limited experiments based on the prior art according to the concept of the present invention should be within the scope of protection defined by the claims.
Claims (7)
1. The utility model provides a beam column type beam that lands, its characterized in that beam column type beam that lands includes the longeron, longeron upper portion forms the decking, the longeron lower extreme is provided with stand or pile foundation, the pre-buried metal bellows of trompil in the longeron, and shaped steel or lacing bar are established at stand or pile foundation top, and stand or pile foundation top shaped steel or lacing bar insert the pre-buried metal bellows in the longeron, pour high performance concrete in the pre-buried metal bellows.
2. The beam column type floor beam according to claim 1, wherein: the horizontal bridge of column type beam that falls to the ground is to dividing into a plurality of longeron, and the horizontal bridge in each longeron upper portion is to establishing the arm of choosing and forming the decking, reserves horizontal wet seam between the adjacent decking, and the decking is chosen the arm and is reserved the loop type reinforcing bar, and the loop type reinforcing bar staggered arrangement between the adjacent decking is high-performance concrete or ultra-high performance concrete are pour to horizontal wet seam.
3. The beam column type floor beam according to claim 1, wherein: the column type floor beam is longitudinally divided into a plurality of longitudinal beams, longitudinal wet joints are reserved between adjacent longitudinal beams, annular reinforcing steel bars are reserved on the bridge deck, the annular reinforcing steel bars between the adjacent bridge deck are arranged in a staggered mode, rectangular closed reinforcing steel bars are reserved on the longitudinal beams, the rectangular closed reinforcing steel bars between the adjacent longitudinal beams are arranged in a staggered mode, and high-performance concrete or ultrahigh-performance concrete is poured into the longitudinal wet joints.
4. The beam column type floor beam according to claim 1, wherein: the upper surface of the upright post or the pile foundation is provided with a thick rubber ring, and the thick rubber ring is positioned between the upper surface of the upright post or the pile foundation and the bottom of the longitudinal beam.
5. The beam column type floor beam according to claim 1, wherein: when high-performance concrete is adopted, the width of a wet joint is more than or equal to 12.5d +50mm, and d is the diameter of the annular steel bar; when the ultra-high performance concrete is adopted, the width of the wet joint is more than or equal to 7.5d +50mm, and d is the diameter of the annular reinforcing steel bar.
6. A construction method of a beam-column type ground beam is characterized by comprising the following steps:
s1, dividing the horizontal bridge direction of the floor beam structure into a plurality of longitudinal beams, and temporarily connecting the longitudinal beams to the upright posts or the pile foundations by using carrying pole beams, wherein the longitudinal beams are temporarily supported on the carrying pole beams for construction;
s2, splicing a plurality of longitudinal beams arranged in the transverse bridge direction into a whole, reserving wet joints between bridge decks of the adjacent longitudinal beams, reserving annular reinforcing steel bars between cantilever arms of the bridge decks, arranging the annular reinforcing steel bars between the adjacent bridge decks in a staggered mode, and pouring high-performance concrete or ultrahigh-performance concrete into the wet joints;
s3, pre-burying a metal corrugated pipe through an inner hole of the longitudinal beam, arranging a thick rubber ring on the top surface of the upright post or the pile foundation, inserting section steel or a bundle bar at the top of the upright post or the pile foundation into the metal corrugated pipe, and pouring high-performance concrete to enable the longitudinal beam and the upright post or the pile foundation to be connected into a whole;
and S4, dismantling the construction carrying pole beam.
7. A construction method of a beam-column type ground beam is characterized by comprising the following steps:
s1, dividing the floor beam structure into a plurality of longitudinal beams longitudinally, and temporarily connecting the longitudinal beams to the upright posts or the pile foundations by using carrying pole beams, wherein the longitudinal beams are temporarily supported on the carrying pole beams for construction;
s2, splicing a plurality of longitudinal beams which are longitudinally arranged into a whole, reserving wet joints between the adjacent longitudinal beams, reserving annular reinforcing steel bars on the bridge deck, arranging the annular reinforcing steel bars between the adjacent bridge deck in a staggered manner, reserving rectangular closed reinforcing steel bars on the longitudinal beams, arranging the rectangular closed reinforcing steel bars between the adjacent longitudinal beams in a staggered manner, and pouring high-performance concrete or ultrahigh-performance concrete into the wet joints;
s3, pre-burying a metal corrugated pipe through an inner hole of the longitudinal beam, arranging a thick rubber ring on the top surface of the upright post or the pile foundation, inserting section steel or a bundle bar at the top of the upright post or the pile foundation into the metal corrugated pipe, and pouring high-performance concrete to enable the longitudinal beam and the upright post or the pile foundation to be connected into a whole;
and S4, dismantling the construction carrying pole beam.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011010281.0A CN112144378A (en) | 2020-09-23 | 2020-09-23 | Beam-column type ground beam and construction method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011010281.0A CN112144378A (en) | 2020-09-23 | 2020-09-23 | Beam-column type ground beam and construction method thereof |
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