CN107336346B - Beam making pedestal - Google Patents
Beam making pedestal Download PDFInfo
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- CN107336346B CN107336346B CN201710602312.3A CN201710602312A CN107336346B CN 107336346 B CN107336346 B CN 107336346B CN 201710602312 A CN201710602312 A CN 201710602312A CN 107336346 B CN107336346 B CN 107336346B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B17/00—Details of, or accessories for, apparatus for shaping the material; Auxiliary measures taken in connection with such shaping
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- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Mechanical Engineering (AREA)
- Bridges Or Land Bridges (AREA)
- Joining Of Building Structures In Genera (AREA)
Abstract
The application discloses a beam making pedestal, comprising: a pedestal foundation formed by pouring reinforced concrete, a steel plate assembly pre-buried in the pedestal foundation and I-steel fixedly connected with the steel plate assembly; the steel plate is characterized in that the upper surface of the I-steel is fixedly provided with a channel steel, and the upper surface of the channel steel is fixedly provided with a bottom die steel plate. The beam manufacturing pedestal provided by the application can reduce the dismantling of the later concrete engineering, reduce the waste of land and the damage to the environment, shorten the prefabrication period of the T-shaped beam, accelerate the construction progress and improve the production efficiency.
Description
Technical Field
The application relates to the technical field of railway traffic, in particular to a beam making pedestal.
Background
Along with the rapid development of railway traffic technology, bridge engineering occupies a large proportion in heavy haul railways in China. The prefabricated T-shaped beam piece is an important part in bridge engineering, in China, the production of the prefabricated T-shaped beam piece is required to be completed by the centralized production of a special beam manufacturing field, a beam manufacturing pedestal is important tooling equipment of the beam manufacturing field, and the prefabricated T-shaped beam piece is used as an indispensable part in the production of the prefabricated T-shaped beam piece.
Currently, all reinforced concrete type pedestals are still adopted in most western countries and domestic countries, and the pedestals consist of an end foundation, an end longitudinal beam, a middle foundation and a middle longitudinal beam. In construction, firstly, foundation excavation and treatment are carried out, foundation steel bars at the end parts and the middle part and longitudinal beam steel bars are bound, and concrete is poured in formwork erection construction. The beam manufacturing pedestal in the prior art is used for manufacturing the T-shaped beam, so that the construction progress can be influenced, the prefabrication period of the T-shaped beam is long, and the production efficiency is very low.
How to design a system roof beam pedestal can be favorable to accelerating the construction progress, shortens T type roof beam prefabrication cycle, improves the production efficiency of T type roof beam, has become the technical problem that the technical staff of the art needs to solve urgently.
Disclosure of Invention
In order to solve the technical problems, the application provides the beam manufacturing pedestal which can be beneficial to shortening the prefabrication period of the T-shaped beam and improving the production efficiency of the T-shaped beam.
The technical scheme provided by the application is as follows:
a beam-making stand, comprising: a pedestal foundation formed by pouring reinforced concrete, a steel plate assembly pre-buried in the pedestal foundation and I-steel fixedly connected with the steel plate assembly; the steel plate is characterized in that the upper surface of the I-steel is fixedly provided with a channel steel, and the upper surface of the channel steel is fixedly provided with a bottom die steel plate.
Further, in a preferred mode of the present application, the beam making stand further includes a beam moving device for moving the prefabricated T-beam.
Further, in a preferred mode of the present application, the beam moving device includes: the movable frame capable of sliding on the movable beam slideway is formed by welding a longitudinal beam assembly, a beam assembly and channel steel, mounting steel plates perpendicular to the length direction of the beam body are welded at the ends of two ends of the beam assembly, and a sliding wheel shaft is mounted on the mounting steel plates.
Still further, be equipped with the height-adjusting threaded rod on the crossbeam subassembly, the height-adjusting threaded rod bottom is equipped with the leveling steel sheet pad that is used for keeping the movable frame in the horizontality.
Further, the number of the beam moving devices is two, and the beam moving devices are respectively arranged at the positions of the two side ends of the beam making pedestal, wherein the length of the positions of the two side ends of the beam making pedestal is 3.5 meters towards the center direction of the beam making pedestal.
Further, in a preferred mode of the present application, the i-steel is provided with a steam curing pipe hole, and the steam curing pipe is installed on the steam curing pipe hole.
Further, in a preferred form of the application, the I-beams are equally spaced along the length of the prefabricated T-beam.
Still further, the I-beams are equally spaced along the length of the prefabricated T-beam, preferably at a spacing of 0.8m.
Furthermore, the channel steel is perpendicular to the length direction of the I-steel, and the channel steel and the I-steel are arranged at equal intervals along the length direction of the prefabricated T-shaped beam.
Further, in a preferred mode of the present application, an adjusting steel plate for adjusting the accuracy of the inverted arch is fixedly provided at the top of the i-steel.
Furthermore, the top of the I-steel is fixedly provided with an adjusting steel plate for adjusting the accuracy of the inverted arch, and the top of the I-steel is welded with the adjusting steel plate for adjusting the accuracy of the inverted arch.
Further, in a preferred embodiment of the present application, reinforcing steel plates are fixedly provided at both ends and the middle of the i-steel.
Further, the reinforcing steel plates are welded to both ends and the middle portion of the i-steel.
Compared with the prior art, the beam making pedestal comprises a pedestal foundation formed by pouring reinforced concrete, wherein a steel plate assembly is embedded in the pedestal foundation and fixedly connected with I-steel, the upper surface of the I-steel is fixedly provided with channel steel, and the upper surface of the channel steel is fixedly provided with a bottom die steel plate. So can reduce the demolishment of later stage concrete engineering, reduce the extravagant of soil and destroy to the environment, shorten the prefabricated cycle of T type roof beam for the construction progress improves production efficiency.
Drawings
In order to more clearly illustrate the embodiments of the application or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural view of a beam making pedestal according to an embodiment of the present application;
fig. 2 is a side view of a beam making stand according to an embodiment of the present application.
Detailed Description
In order that those skilled in the art will better understand the technical solutions of the present application, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is apparent that the described embodiments are only some embodiments of the present application, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
As shown in fig. 1, the embodiment of the application provides a beam-making pedestal, which comprises a pedestal foundation 1 formed by pouring reinforced concrete, a steel plate component 2 pre-embedded in the pedestal foundation 1, and an i-steel 3 fixedly connected with the steel plate component 2; the upper surface of the I-steel 3 is fixedly provided with a channel steel 4, and the upper surface of the channel steel 4 is fixedly provided with a bottom die steel plate 5.
At present, most western countries and domestic countries still adopt all-reinforced concrete mode pedestals, and the pedestal consists of an end foundation, an end longitudinal beam, a middle foundation and a middle longitudinal beam. In construction, firstly, foundation excavation and treatment are carried out, foundation steel bars at the end parts and the middle part and longitudinal beam steel bars are bound, and concrete is poured in formwork erection construction. The full concrete structural form needs to be subjected to concrete pouring, concrete form removal and concrete maintenance in actual construction, and the manufacturing process is labor-and time-consuming, long in period and large in engineering quantity.
The steel structure combined beam making pedestal provided by the embodiment of the application comprises a pedestal foundation 1 formed by pouring reinforced concrete, wherein a steel plate assembly 2 is embedded in the pedestal foundation 1, the steel plate assembly 2 is fixedly connected with I-steel 3, a channel steel 4 is fixedly arranged on the upper surface of the I-steel 3, and a bottom die steel plate 5 is fixedly arranged on the upper surface of the channel steel 4. So can reduce the demolishment of later stage concrete engineering, reduce the extravagant of soil and destroy to the environment, shorten the prefabricated cycle of T type roof beam for the construction progress improves production efficiency.
After the foundation formed by pouring reinforced concrete is optimized, the T-shaped Liang Fangong is preliminarily arranged on the embedded steel plate in advance on the embedded steel plate assembly 2 of the concrete foundation, and after adjustment is finished, the bottom of the I-steel 3 is welded on the embedded steel plate. The inverted arch value of the top of the i-steel 3 is measured, and then the accuracy of the inverted arch is adjusted by adding and welding an adjusting steel plate to the top. The length direction of the I-steel 3 is perpendicular to the length direction of the prefabricated T-shaped beam body, the I-steel 3 is multiple and is arranged at equal intervals along the length direction of the prefabricated T-shaped beam, and the arrangement interval is preferably 0.8m. The upper surface welding channel-section steel 4 of I-steel 3, a plurality of channel-section steel 4 are along the long direction interval arrangement of length direction perpendicular to I-steel 3 of roof beam, and the upper surface welding of channel-section steel 4 sets up die block steel sheet 5.
Pouring of the reinforced concrete foundation is started, the steel plate assembly 2 is pre-buried in the concrete foundation along the length direction of the prefabricated T-shaped beam, the pre-buried assembly is kept parallel to each other front and back and left and right, the steel plate assembly 2 is required to control corresponding preset camber when being pre-buried, and the I-steel 3 is welded with the pre-buried steel plate after hardening of the foundation is completed.
It should be noted that, after the inverted arch bridge is built, due to the load of the automobile, the pedestrian, etc., a downward displacement is generated, and the displacement is also called deflection, which causes the actual elevation of the bridge deck to be inconsistent with the elevation in design.
In order to eliminate or reduce the degree of discrepancy between the actual bridge deck elevation and the design elevation, a pre-arch is required to be arranged, namely, the bridge is made to be higher by a certain height in the construction process, so that the height of the constructed bridge deck is higher by a numerical value than the design elevation, and the height of the bridge deck can be basically consistent with the design elevation after pedestrians and vehicles get on the bridge.
The "camber" referred to in the present application refers to the convexity, arch or curvature of the T-shape Liang Qingwei, and can be understood as the sum of the deformation values of the superstructure and the scaffold, i.e. the pre-camber to be set. The support will produce elasticity and inelastic deformation after loading, and bridge superstructure can produce the amount of deflection under the dead weight effect, in order to guarantee the accuracy of size after the bridge completion, the support must set up a certain amount of pre-camber when being under construction.
Before welding, lofting on the steel plate assembly 2 according to the position required by design, requiring the position of each I-steel 3 to be accurate, and drawing a marking line;
during welding, the middle part of the embedded steel plate is firstly welded to the two ends gradually, spot welding is firstly carried out, and then full welding is carried out.
After the welding of the I-steel 3 and the embedded steel plates is completed, the top surface of the I-steel 3 is rechecked again according to the designed elevation of the top surface of each I-steel 3 so as to ensure the accuracy of the reserved inverted arch value of the pedestal.
The length direction of the I-steel 3 is perpendicular to the length direction of the prefabricated T-shaped beam body, a plurality of I-steel 3 are arranged at intervals along the length direction of the prefabricated T-shaped beam body, and the steel structure beam-making pedestal adopts the I-steel 3 as a main load supporting carrier.
In the following description, a beam of 32mT is taken as an example, each of the i-beams 3 is processed to be 84cm long and 32cm high, and the total number of the i-beams 3 is 42, in addition, in order to ensure the safe and reliable supporting and stress of the i-beams 3, the two ends and the middle of the i-beams 3 are provided with reinforcing steel plates 6 for welding, the surfaces of the reinforcing steel plates 6 are perpendicular to the length direction of the i-beams 3, and each of the i-beams 3 is preferably provided with six reinforcing steel plates 6. The reinforced steel plate 6 and the I-steel 3 are arranged in a central symmetry manner, so that the supporting force of the I-steel 3 is increased, and the steel structure pedestal is ensured not to deform.
The channel steel 4 is arranged at intervals along the length direction of the I-steel 3, after the elevation of the top surface of the I-steel 3 is rechecked, the channel steel 4 is welded to the top surface of the I-steel 3, if the elevation of the top surface of the I-steel 3 has errors, and the accuracy of the inverted arch can be adjusted by additionally arranging and welding an adjusting steel plate at the top.
Preferably, the channel steel 4 needs to exceed the I-steel by 30.08m, when the channel steel 4 is welded, one end is gradually welded to the other end, the elastic lines are aligned, the linearity of the pedestal is guaranteed, the lower side wing plate of the channel steel 4 is only attached to the top surface of the I-steel 3, after the welding line and the elevation of the channel steel 4 are checked, the bottom die steel plate is welded on the upper surface of the channel steel 4, and the elevation of the top surface of the bottom die steel plate is re-measured after the welding is finished.
The beam making pedestal is optimized to be subjected to roadbed end thorn treatment by utilizing the pedestal foundation, so that the roadbed strength is enhanced. The manufacturing time from construction to use of the T-shaped beam is short, the T-shaped beam can be expected to be used in about one day, and in addition, the beam manufacturing pedestal provided by the embodiment of the application can be recycled in the later stage, so that manpower and material resources are saved to a great extent, and the production cost is reduced. The demolition links of the later concrete engineering are reduced, and the waste of land and the damage to the environment are reduced. Obviously shortens the prefabrication period of the T-shaped beam, quickens the construction progress and improves the production efficiency.
In the embodiment of the application, the beam manufacturing pedestal further comprises a beam moving device, and the beam moving device is used for moving the prefabricated T-shaped beam.
In an embodiment of the present application, a beam moving device includes: the movable frame capable of sliding on the movable beam slideway is formed by welding a longitudinal beam assembly, a beam assembly and channel steel 4, two end heads of the beam assembly are welded with mounting steel plates 8 perpendicular to the length direction of the beam body, and a sliding wheel shaft 81 is mounted on the mounting steel plates 8.
The steel structure beam making pedestal combines with the fixed sideslip beam slideway, sets up the movable frame in the position of beam making pedestal end along beam body length direction 3.5 meters, guarantees pedestal basis and movable frame and does not influence each other for the efficiency of moving the roof beam.
And (3) installing a beam moving slideway, wherein the beam moving slideway preferably adopts a 60kg/m steel rail, and pouring concrete with the thickness of about 10cm on the surface of the steam curing pipeline at the moving frame.
In the embodiment of the application, the beam assembly is provided with a height adjusting threaded rod 7, and the bottom of the height adjusting threaded rod 7 is provided with a leveling steel plate pad 71 for maintaining the moving frame in a horizontal state.
In the embodiment, specifically, the movable frame is welded into a frame structure through longitudinal beam channel steel 4 and transverse beam channel steel 4 components, four pairs of longitudinal beam structure components are welded with the ends of the transverse beam fixing pieces through steel plates with the thickness of 2cm at the front side and the rear side perpendicular to the length direction of the beam body, and the welding seams are full and meet the stress requirements. After the welding is completed, a sliding wheel shaft 81 is installed between the two installation steel plates 6, a threaded hole is formed in a position close to about one third of the upper part of the beam assembly, and a height adjusting threaded rod 7 is installed. When the height adjusting threaded rod 7 is lifted to a certain height, a leveling steel plate pad 71 is arranged at the bottom of the height adjusting threaded rod 7, so that the trolley frame is in a horizontal state. The tops of the longitudinal and transverse beam components and the steel plates at the two ends are welded and connected into a whole by adopting channel steel 4, a steel bottom die is paved at the top of the channel steel 4, and limit steel is welded at the lower bottom of the steel bottom die, so that the displacement of the bottom die is prevented. In the prefabrication process of the T-shaped beam, the bottom template is jacked up to a certain designed height of an inverted arch value through the lifting of the height-adjusting threaded rod 7, and the ejector rod is supported on the ground to enable the ejector rod to be stressed.
When the beam moving condition is reached after the prefabrication of the T-shaped beam is completed, the movable bottom die is pushed out, the beam moving carrier vehicle is placed on a steel rail, and the T-shaped beam is moved onto the beam storage pedestal through the beam moving carrier vehicle.
Specifically, the number of the beam moving devices is two, and the beam moving devices are respectively arranged at the positions of the two side ends of the beam making pedestal, which are 3.5 meters long towards the center direction of the beam making pedestal.
In the embodiment of the application, the I-steel 3 is provided with a steam curing pipeline hole, and the steam curing pipeline hole is provided with a steam curing pipe 9.
In the embodiment of the application, after the pedestal is installed, each I-steel 3 is shifted leftwards by 60cm along the length direction, the bottom of the I-steel 3 is shifted upwards by 60cm, and a reserved steam curing pipeline hole is drilled. After the steam curing pipe hole is completed, a steam curing pipe 9 is installed, and the steam curing pipe 9 is preferably a 50mm steel pipe.
In the embodiment of the application, the I-steel 3 is arranged at equal intervals along the length direction of the prefabricated T-shaped beam.
In particular, the I-beams 3 are equally spaced along the length of the prefabricated T-beam, preferably at a spacing of 0.8m.
More specifically, the channel steel 4 is perpendicular to the length direction of the i-steel 3, and is arranged at equal intervals along the length direction of the prefabricated T-beam.
In the embodiment of the application, an adjusting steel plate for adjusting the accuracy of the inverted arch is fixedly arranged at the top of the I-steel 3.
Specifically, reinforcing steel plates 6 are fixedly provided at both ends and in the middle of the I-steel 3.
More specifically, the reinforcing steel plate 6 is welded to both ends and the middle portion of the i-steel 3.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (6)
1. A beam-making stand, comprising: a pedestal foundation formed by pouring reinforced concrete, a steel plate assembly pre-buried in the pedestal foundation and I-steel fixedly connected with the steel plate assembly; the upper surface of the I-steel is fixedly provided with a channel steel, and the upper surface of the channel steel is fixedly provided with a bottom die steel plate;
the beam manufacturing pedestal further comprises a beam moving device, wherein the beam moving device is used for moving the prefabricated T-shaped beam;
the beam moving device comprises: the movable frame can slide on the beam moving slideway and is formed by welding a longitudinal beam assembly, a beam assembly and channel steel, mounting steel plates perpendicular to the length direction of the beam body are welded at the end heads at the two ends of the beam assembly, and a sliding wheel shaft is mounted on the mounting steel plates;
the beam assembly is provided with a height adjusting threaded rod, and the bottom of the height adjusting threaded rod is provided with a leveling steel plate pad for maintaining the moving frame in a horizontal state;
the upper surface of the I-steel is provided with an adjusting steel plate for adjusting the accuracy of the inverted arch;
and a steel bottom die is paved at the top of the channel steel, and limiting steel is welded at the bottom of the steel bottom die, so that the bottom die is prevented from being displaced.
2. The beam making pedestal according to claim 1, wherein the beam moving devices are specifically two, and are respectively arranged at positions where the lengths of the two side ends of the beam making pedestal to the center direction of the beam making pedestal are 3.5 meters.
3. The beam making stand according to claim 1, wherein the i-beam is provided with a steam curing pipe hole, and a steam curing pipe is installed on the steam curing pipe hole.
4. The beam-making stand of claim 1, wherein the i-beams are equally spaced along the length of the prefabricated T-beam.
5. The beam-forming stand of claim 4, wherein the channel-section bars are perpendicular to the length of the i-section bars and are equally spaced along the length of the prefabricated T-beam.
6. The beam-making stand according to claim 1, wherein reinforcing steel plates are fixedly provided at both ends and in the middle of the i-beam.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710602312.3A CN107336346B (en) | 2017-07-21 | 2017-07-21 | Beam making pedestal |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710602312.3A CN107336346B (en) | 2017-07-21 | 2017-07-21 | Beam making pedestal |
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| CN107336346A CN107336346A (en) | 2017-11-10 |
| CN107336346B true CN107336346B (en) | 2023-09-12 |
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| CN201710602312.3A Active CN107336346B (en) | 2017-07-21 | 2017-07-21 | Beam making pedestal |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108818890A (en) * | 2018-06-29 | 2018-11-16 | 中交二公局东萌工程有限公司 | A kind of I-steel T girder prefabricated pedestal and preparation method thereof |
| CN109571720B (en) * | 2019-01-15 | 2024-02-02 | 中铁宝桥（扬州）有限公司 | High-precision multifunctional concrete bridge deck prefabricating die and working method thereof |
| CN110421685B (en) * | 2019-07-25 | 2021-10-19 | 德睿盛兴（大连）装配式建筑科技有限公司 | Whole die block of concrete prefabricated component |
| CN110666953A (en) * | 2019-10-25 | 2020-01-10 | 石家庄铁道大学 | High-speed railway beam-making pedestal suitable for unfavorable geology and construction method thereof |
| CN111469253A (en) * | 2020-04-09 | 2020-07-31 | 中铁十四局集团第一工程发展有限公司 | Assembled multifunctional steel structure box girder pedestal |
| CN113199617A (en) * | 2021-05-13 | 2021-08-03 | 中建交通建设集团有限公司 | A assembled conversion frock for different end width prefabricated T roof beams |
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| CN107336346A (en) | 2017-11-10 |
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