CN216860140U - Length-adjustable steel pedestal for precast beam construction - Google Patents

Length-adjustable steel pedestal for precast beam construction Download PDF

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Publication number
CN216860140U
CN216860140U CN202121711553.XU CN202121711553U CN216860140U CN 216860140 U CN216860140 U CN 216860140U CN 202121711553 U CN202121711553 U CN 202121711553U CN 216860140 U CN216860140 U CN 216860140U
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China
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steel
pedestal
precast beam
length
channel
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CN202121711553.XU
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Inventor
范觉晓
梁小东
蒙文武
沈永洪
杨兵
刘进雷
蒋和明
赵繁
漆涛
何煜民
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China Construction First Group Corp Ltd
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China Construction First Group Corp Ltd
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Abstract

The utility model discloses a length-adjustable steel pedestal for precast beam construction, which comprises a plurality of first pedestal units and second pedestal units, wherein the first pedestal units are arranged on the upper surface of the first pedestal unit; the first pedestal units and the second pedestal units can be combined into steel pedestals with different lengths; and the second pedestal unit is arranged at the end part of the steel pedestal and used for placing the steel plate slope regulator and bearing the pressure at the end part of the precast beam after the prestressed tensioning arch rising of the precast beam. This steel pedestal with adjustable a length for precast beam construction, a plurality of first pedestal units with the second pedestal unit adopts standardized material preparation, and the preparation error is little, and the equipment precision is high, can require the pedestal unit of the different specifications of preparation according to the size of different precast beams. And each pedestal unit is combined and disassembled in a hoisting mode, so that the length of the pedestal is adjusted.

Description

Length-adjustable steel pedestal for precast beam construction
Technical Field
The utility model relates to the field of building construction, in particular to a length-adjustable steel pedestal for precast beam construction.
Background
The precast girders used in bridge construction are generally precast in a precast girder yard and then erected at a construction site by a bridge girder erection machine. With the acceleration of the construction process of a highway system in China, the conditions of multiple span types, various types of precast beams and the like generally exist in the design of the precast highway beams, a construction unit needs to expropriate a larger precast field area according to the traditional method, more precast pedestals with different specifications are built, when the actual conditions such as terrain and the like are limited and a large-area field area cannot be expropriated, only a plurality of precast beams with different specifications can be manufactured firstly, after the prefabrication of part of precast beams is completed, the original pedestals are dismantled, pedestals with other specifications are manufactured, and precast beams with other specifications are prefabricated; a certain time interval is needed for dismantling the newly-built pedestals, so that the construction period of the whole beam yard is easily prolonged, and the progress of the whole project is further influenced. Meanwhile, in the process of dismantling and newly building the pedestal, pedestal materials are not fully recycled, so that resource waste is caused, and the cost of the precast beam is increased sharply. Based on this, the beam slab precast yard steel pedestal which is simple in structure, convenient to install, suitable for different types of precast beams and convenient to adjust in length is urgently needed.
SUMMERY OF THE UTILITY MODEL
The utility model aims to: the steel bench seat with adjustable length for precast beam construction is provided to the unable regulation of steel bench seat structure size that prior art exists, the unable turnover of steel bench seat material use causes the too high problem of precast beam prefabrication cost.
In order to achieve the purpose, the utility model adopts the technical scheme that:
a length-adjustable steel pedestal for precast beam construction comprises a plurality of first pedestal units and second pedestal units; the first pedestal units and the second pedestal units can be combined into steel pedestals with different lengths; and the second seat unit is arranged at the end part of the steel seat and used for placing the pressure at the end part of the precast beam after the steel plate slope regulator and the bearing precast beam are prestressed, tensioned and arched.
Preferably, the length-adjustable steel pedestal for precast beam construction provided by the utility model comprises a plurality of first pedestal units, wherein each first pedestal unit comprises a first angle steel, and the first angle steel is used for fixing a first I-shaped steel; the first I-shaped steel is arranged perpendicular to the length direction of the pedestal and used for supporting the beam body to pour the template and concrete; a first channel steel and a second channel steel are distributed on the top surface of the first I-shaped steel, and the first channel steel and the second channel steel are welded on the first I-shaped steel to connect the first I-shaped steel into a whole; the top surface welding of first channel-section steel with the second channel-section steel has first corrosion resistant plate, first corrosion resistant plate is the same width with precast beam bottom.
Preferably, the second pedestal unit comprises second angle steel, and the second angle steel is used for fixing second i-steel; the second I-shaped steel is arranged in parallel to the length direction of the pedestal and used for supporting a beam body to pour a template and concrete, the top surface of the second I-shaped steel is provided with a movable channel steel, and the movable channel steel is connected with the second I-shaped steel in a welding mode so as to enable the second I-shaped steel which is arranged side by side to be connected into a whole; a third channel steel and a fourth channel steel are arranged on the movable channel steel, and the movable channel steel is connected into a whole by the third channel steel and the fourth channel steel; and a second stainless steel plate is welded on the top surfaces of the third channel steel and the fourth channel steel, and the second stainless steel plate is as wide as the bottom of the precast beam.
Adopt this kind of structure setting, first pedestal unit and second pedestal unit adopt standardized material to make, and the preparation error is little, and the equipment precision is high, can be according to the pedestal unit of the different specifications of the dimensional requirement preparation of different precast beams. And each pedestal unit is combined and disassembled in a hoisting mode, so that the length of the pedestal is adjusted.
Further preferably, the first angle steel and the second angle steel are embedded in a concrete foundation and connected with the first I-shaped steel and the second I-shaped steel in a welding mode, so that the pedestal and the foundation are connected into a whole.
Further preferably, the first I-shaped steel is provided with a spray water pipe hole, the spray water pipe hole is used for transmitting a water pipe, and the water pipe is used for cooling when the precast beam is poured and maintaining after the precast beam concrete is formed.
Further preferably, the distance between the first I-shaped steels can be adjusted according to the structural form of the precast beam, so that the mechanical property of the pedestal is balanced.
Further preferably, the second i-beams are densely distributed in the length direction of the parallel pedestal, and since the precast beams are usually subjected to prestress tensioning after the prefabrication is completed, the precast beams arch when the prestress tensioning is performed, and the pressure at the end part of the pedestal is increased, the mechanical property of the pedestal is better by adopting the structural form.
Further preferably, the second channel-section steel flushes first I-steel outward flange, the fourth channel-section steel flushes activity channel-section steel edge, the notch is outside, the second channel-section steel with it only starch the strip to be filled with the rigid foam in the fourth channel-section steel notch, the rigid foam thick liquid strip is used for preventing that the concrete thick liquid from spilling.
Further preferably, the position of the movable channel steel can be adjusted according to the position of the steel plate slope regulator, and the steel plate slope regulator is used for regulating a steel plate at the bottom of the precast beam, so that the steel plate and the concrete surface at the bottom of the precast beam are more fit.
Further preferably, the number of the movable channel steel can be increased or decreased according to actual conditions, and the length of the end part of the precast beam can be adjusted by increasing or decreasing the number of the movable channel steel.
In summary, due to the adoption of the technical scheme, the utility model has the beneficial effects that:
the length-adjustable steel pedestal for precast beam construction is made of standardized materials, has small manufacturing error and high assembly precision, and can be used for manufacturing pedestal units with different specifications according to the size requirements of different precast beams. Each pedestal unit is combined and dismantled in a hoisting mode, the operability is high, the technical difficulty is low, the construction period is shortened, the production efficiency is improved, and the construction cost is greatly saved.
2. The length-adjustable steel pedestal for precast beam construction can be suitable for precast beams of different specifications, improves the universality of the steel pedestal, and greatly improves the turnover rate of steel pedestal materials.
Drawings
FIG. 1 is a schematic structural view of a length-adjustable steel platform for precast beam construction described in example 1;
FIG. 2 is a sectional view of a portion of a first table base unit of a length-adjustable steel table base for precast beam construction shown in FIG. 1;
FIG. 3 is a sectional view of a portion of a second table base unit of the length-adjustable steel table base for precast beam construction shown in FIG. 1;
the labels in the figure are: a is a first pedestal unit, B is a second pedestal unit, 1 is a first angle steel, 2 is a first I-shaped steel, 3 is a first channel steel, 4 is a second channel steel, 5 is a first stainless steel plate, 6 is a hard foam grout stopping strip, 7 is a spray water pipe hole, 8 is a second angle steel, 9 is a second I-shaped steel, 10 is a movable channel steel, 11 is a third channel steel, 12 is a fourth channel steel, and 13 is a second stainless steel plate.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings.
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.
Example 1
As shown in FIG. 1, the length-adjustable steel pedestal for precast beam construction, provided by the utility model, comprises a plurality of first pedestal units A and second pedestal units B; the first pedestal units A and the second pedestal units B can be combined into steel pedestals with different lengths; and the second seat unit B is arranged at the end part of the steel seat and used for placing the pressure at the end part of the precast beam after the steel plate slope regulator and the bearing precast beam are prestressed, tensioned and arched.
As a preferable solution of this embodiment, the first pedestal units a of this embodiment include first angle steels 1, where the first angle steels 1 are used to fix first i-beams 2; the first I-shaped steel 2 is arranged perpendicular to the length direction of the pedestal and used for supporting a beam body pouring template and concrete; a first channel steel 3 and a second channel steel 4 are distributed on the top surface of the first I-shaped steel 2, the first channel steel 3 and the second channel steel 4 are welded on the first I-shaped steel 2, and the first I-shaped steel 2 is connected into a whole; the top welding of first channel-section steel 3 with second channel-section steel 4 has first corrosion resistant plate 5, first corrosion resistant plate 5 is the same width with precast beam bottom.
As a preferable scheme of this embodiment, the second pedestal unit B includes a second angle iron 8, and the second angle iron 8 is used for fixing a second i-beam 9; the second I-shaped steel 9 is arranged in parallel to the length direction of the pedestal and used for supporting a beam body pouring template and concrete, the top surface of the second I-shaped steel 9 is provided with a movable channel steel 10, and the movable channel steel 10 is connected with the second I-shaped steel 9 in a welding mode, so that the second I-shaped steels 9 which are arranged side by side are connected into a whole; a third channel steel 11 and a fourth channel steel 12 are distributed on the movable channel steel 10, and the movable channel steel 10 is connected into a whole by the third channel steel 11 and the fourth channel steel 12; the top surface welding of third channel-section steel 11 with fourth channel-section steel 12 has second corrosion resistant plate 13, second corrosion resistant plate 13 and precast beam bottom are the same width.
In this embodiment, the first pedestal unit a and the second pedestal unit B are made of standardized materials, so that the manufacturing error is small, the assembly precision is high, and pedestal units with different specifications can be manufactured according to the size requirements of different precast beams. And each pedestal unit is combined and disassembled in a hoisting mode, so that the length of the pedestal is adjusted.
As a preferable scheme of this embodiment, the first angle steel 1 and the second angle steel 8 are embedded in a concrete foundation and connected with the first i-steel 2 and the second i-steel 9 in a welding manner, so that the pedestal and the foundation are connected into a whole, and the structural strength of the pedestal is enhanced.
As a preferable scheme of this embodiment, the first i-beam 2 is provided with a spray water pipe hole 7, the spray water pipe hole 7 is used for conveying a water pipe, and the water pipe is used for cooling when the precast beam is poured and maintaining after the precast beam is formed.
As a preferable scheme of this embodiment, the distance between the first i-beams 2 may be adjusted according to the structural form of the precast beam, so that the mechanical properties of the pedestal are balanced.
As a preferable scheme of this embodiment, the second i-beams 8 are densely distributed in the length direction of the parallel pedestal, and since the precast beam is usually prestressed and tensioned after the prefabrication is completed, the precast beam is arched during the prestressed tensioning, and the pressure at the end of the pedestal is increased, so that the mechanical property of the pedestal is better by adopting this structural form.
As a preferable scheme of this embodiment, the second channel steel 4 flushes the outer edge of the first i-steel 2, the fourth channel steel 12 flushes the edge of the movable channel steel 10, the notch is outward, the second channel steel 4 and the notch of the fourth channel steel 12 are filled with a rigid foam grout stopping strip 6, and the rigid foam grout stopping strip 6 is used for preventing concrete grout from leaking.
As a preferable scheme of this embodiment, the position of the movable channel 10 may be adjusted according to a position where the steel plate slope adjuster 14 is disposed, and the steel plate slope adjuster 14 is configured to adjust a steel plate at the bottom of the precast beam, so that the steel plate and a concrete surface at the bottom of the precast beam may be more fitted.
As a preferable aspect of this embodiment, the number of the movable channel beams 10 may be increased or decreased according to actual conditions, and the length of the end portion of the precast beam may be adjusted by increasing or decreasing the number of the movable channel beams 10.
The above description is intended to be illustrative of the preferred embodiment of the present invention and should not be taken as limiting the utility model, but rather, the intention is to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the utility model.

Claims (10)

1. A length-adjustable steel pedestal for precast beam construction is characterized by comprising a plurality of first pedestal units and second pedestal units; the first pedestal units and the second pedestal units can be combined into steel pedestals with different lengths; and the second pedestal unit is arranged at the end part of the steel pedestal and used for placing the steel plate slope regulator and bearing the pressure at the end part of the precast beam after the prestressed tensioning arch rising of the precast beam.
2. The length-adjustable steel pedestal for precast beam construction according to claim 1, wherein the first pedestal units comprise first angle steels for fixing first i-shaped steels; the first I-shaped steel is arranged perpendicular to the length direction of the pedestal and used for supporting the beam body to pour the template and concrete; a first channel steel and a second channel steel are distributed on the top surface of the first I-shaped steel, and the first channel steel and the second channel steel are welded on the first I-shaped steel to connect the I-shaped steel into a whole; the top surface welding of first channel-section steel with the second channel-section steel has first corrosion resistant plate, first corrosion resistant plate is the same width with precast beam bottom.
3. The length-adjustable steel pedestal for precast beam construction according to claim 2, wherein the second pedestal unit comprises a second angle iron for fixing a second i-steel; the second I-shaped steel is arranged in parallel to the length direction of the pedestal and used for supporting a beam body to pour a template and concrete, the top surface of the second I-shaped steel is provided with a movable channel steel, and the movable channel steel is connected with the second I-shaped steel in a welding mode so as to enable the second I-shaped steel which is arranged side by side to be connected into a whole; a third channel steel and a fourth channel steel are distributed on the movable channel steel, and the movable channel steel is connected into a whole by the third channel steel and the fourth channel steel; and a second stainless steel plate is welded on the top surfaces of the third channel steel and the fourth channel steel, and the second stainless steel plate is as wide as the bottom of the precast beam.
4. The length-adjustable steel pedestal for precast beam construction according to claim 3, wherein the first angle steel and the second angle steel are embedded in a concrete foundation and connected with the first I-shaped steel and the second I-shaped steel in a welding manner, so that the pedestal and the foundation are connected into a whole.
5. The length-adjustable steel pedestal for precast beam construction according to claim 2, wherein the first i-beam is provided with a spray pipe hole, the spray pipe hole is used for conveying a water pipe, and the water pipe is used for cooling during precast beam pouring and maintaining after precast beam concrete molding.
6. The length-adjustable steel pedestal for precast beam construction as recited in claim 2, wherein the distance between the first i-beams is adjustable according to the structural form of the precast beam, so that the mechanical properties of the pedestal are balanced.
7. The length-adjustable steel pedestal for precast beam construction as recited in claim 3, wherein the second i-beams are densely arranged in parallel along the length direction of the pedestal.
8. The length-adjustable steel pedestal for precast beam construction according to claim 3, wherein the second channel steel is flush with the outer edge of the first channel steel, the fourth channel steel is flush with the edge of the movable channel steel, the notch is outward, and the notches of the second channel steel and the fourth channel steel are filled with a rigid foam grout stopping strip for preventing concrete grout from leaking.
9. The steel pedestal with the adjustable length for precast beam construction of claim 3, wherein the position of the movable channel steel can be adjusted according to the position of the steel plate slope adjuster, and the steel plate slope adjuster is used for adjusting the steel plate at the bottom of the precast beam, so that the steel plate and the concrete surface at the bottom of the precast beam can be matched better.
10. The length-adjustable steel pedestal for precast beam construction according to claim 3, wherein the number of the movable channel steel can be increased or decreased according to actual conditions, and the length of the end part of the precast beam can be adjusted by increasing or decreasing the number of the movable channel steel.
CN202121711553.XU 2021-07-27 2021-07-27 Length-adjustable steel pedestal for precast beam construction Active CN216860140U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202121711553.XU CN216860140U (en) 2021-07-27 2021-07-27 Length-adjustable steel pedestal for precast beam construction

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Application Number Priority Date Filing Date Title
CN202121711553.XU CN216860140U (en) 2021-07-27 2021-07-27 Length-adjustable steel pedestal for precast beam construction

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CN216860140U true CN216860140U (en) 2022-07-01

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116533368A (en) * 2023-03-27 2023-08-04 四川省交通建设集团有限责任公司 Adjustable pedestal

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116533368A (en) * 2023-03-27 2023-08-04 四川省交通建设集团有限责任公司 Adjustable pedestal
CN116533368B (en) * 2023-03-27 2024-04-16 四川省交通建设集团有限责任公司 Adjustable pedestal

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