A precast steel seat for T-beams and a precast steel pedestal for T-beams

Abstract

The present invention discloses a precast steel seat and a steel bench for T-beams. The steel seat can be placed inside a base cast from concrete. The steel seat includes a seat body, a top plate covering the top of the seat body, and a traveling mechanism connected to the bottom of the seat body. The cross-section of the seat body is generally concave, and it includes a first concave body and first connecting bodies vertically connected to both sides of the first concave body. A plurality of first positioning holes are longitudinally and spacedly arranged on each first connecting body. A plurality of positioning columns that can be inserted into the first positioning holes are longitudinally and spacedly arranged on both sides of the top plate. When the steel seat is placed inside the base, the outer bottom surface of the first concave body abuts against the inner bottom surface of the second concave body of the base, and the traveling mechanism is placed inside the limiting groove of the base. The bottom surface of the first connecting body abuts against the upper surface of the second connecting body of the base, and the positioning columns are simultaneously inserted into the first positioning holes and the second positioning holes of the base, so that the steel seat and the base are relatively fixed. The precast steel seat and the precast steel bench for T-beams of the present invention aim to improve the utilization rate of the precast bench.

Description

Technical Field

[0001] The present invention relates to the field of precast T-beam construction of bridges, and particularly to a precast steel seat for T-beams and a precast steel pedestal for T-beams. Background Art

[0002] With the rapid development of the economy, the infrastructure construction such as railways, municipal roads and highways in our country has been continuously improved. Among them, bridge projects account for a large proportion and play a very important role. During the construction of bridge projects, T-beams are widely used due to their large flexural strength, strong spanning ability, light weight and other characteristics.

[0003] T-beams are usually precast in a beam yard, and multiple precast pedestals are arranged in the beam yard. When precasting T-beams, T-beam formwork is installed on the pedestal and concrete is poured. The structure of the precast pedestal usually includes a concrete foundation, and enlarged foundations are provided at both ends of the concrete foundation. The upper structure of the pedestal is arranged on the concrete foundation. For current precast pedestals, most of the parts above the concrete foundation still adopt concrete structures. After the construction is completed, when the beam yard is restored, the ground needs to be leveled, and the above-ground part of the concrete pedestal needs to be demolished. After the transfer, it needs to be poured again and cannot be reused, which not only wastes resources and damages the environment, but also affects the construction efficiency. Summary of the Invention

[0004] In order to solve the above problems, the present invention provides a precast steel seat for T-beams and a precast steel pedestal for T-beams, aiming to improve the utilization rate of the precast pedestal.

[0005] The specific technical solution proposed by the present invention is as follows: A precast steel seat for T-beams, the steel seat can be placed in a base formed by pouring concrete. The steel seat includes a seat body, a top plate covering the top of the seat body, and a traveling mechanism connected to the bottom of the seat body; the cross-section of the seat body is generally concave, and it includes a first concave body and first connecting bodies vertically connected to both sides of the first concave body. A plurality of first positioning holes are longitudinally spaced on each first connecting body; a plurality of positioning columns that can be inserted into the first positioning holes are longitudinally spaced on both sides of the top plate.

[0006] When the steel seat is placed in the base, the outer bottom surface of the first concave body abuts against the inner bottom surface of the second concave body of the base, and the traveling mechanism is placed in the limiting groove of the base; the bottom surface of the first connecting body abuts against the upper surface of the second connecting body of the base, and the positioning columns are simultaneously inserted into the first positioning holes and the second positioning holes of the base; so that the steel seat and the base are relatively fixed.

[0007] Preferably, connecting seats are longitudinally arranged at the two corner parts on both sides inside the first concave body. I-beams are transversely welded on the two connecting seats. There are multiple I-beams, and the multiple I-beams are longitudinally arranged at intervals. A longitudinal beam is welded on the upper part of the I-beams. The bottom surface of the top plate covering the top of the seat body abuts against the top surface of the longitudinal beam.

[0008] Preferably, the traveling mechanism includes at least two groups of traveling members. The two groups of traveling members are longitudinally arranged at intervals. Each traveling member includes a rotating shaft and traveling wheels fixed on the rotating shaft. The rotating shaft is transversely arranged between the two connecting seats, and the two ends of the rotating shaft are respectively rotatably connected to the two connecting seats; through holes are arranged at positions on the bottom of the first concave body opposite to the traveling wheels, and the traveling wheels extend out of the bottom of the first concave body through the through holes.

[0009] Preferably, the two ends of the rotating shaft are respectively connected to the two connecting seats through bearings.

[0010] Preferably, each rotating shaft includes at least two traveling wheels arranged transversely at intervals, and the distances between the traveling wheels on the two rotating shafts are not equal.

[0011] Preferably, one end of the connecting seat is provided with a plugging post, and the other end is provided with a plugging hole.

[0012] Preferably, the end of the first connecting body extends out of the top plate, and a liftable spraying maintenance device is arranged on the surface of the extending part of the first connecting body.

[0013] Preferably, the spraying maintenance device includes a lifting mechanism fixed on the extending part of the first connecting body, a spray pipe connected to the top of the lifting mechanism, and a nozzle installed at the end of the spray pipe.

[0014] Another specific technical solution proposed by the present invention is: a precast T-beam steel formwork pedestal, including a base formed by concrete pouring and the precast T-beam steel formwork as described above. The steel formwork can be placed in the base; wherein,

[0015] The cross-section of the base is generally concave, and it includes a second concave body and second connecting bodies vertically connected to both sides of the second concave body. A plurality of second positioning holes are longitudinally arranged at intervals on each second connecting body; a limiting groove is recessed on the inner bottom surface of the second concave body;

[0016] When the steel formwork is placed in the base, the outer bottom surface of the first concave body of the steel formwork abuts against the inner bottom surface of the second concave body, and the traveling mechanism of the steel formwork is placed in the limiting groove; the bottom surface of the first connecting body of the steel formwork abuts against the upper surface of the second connecting body, and the positioning posts of the steel formwork are simultaneously inserted into the first positioning holes and the second positioning holes of the steel formwork; so that the steel formwork and the base are relatively fixed.

[0017] Preferably, the second connecting body is stepped so that when the profiled steel seat is placed in the base, the upper surface of the top plate of the profiled steel seat is flush with the top surface of the second connecting body.

[0018] Compared with the prior art, the precast profiled steel seat and precast profiled steel pedestal for T-beams of the present invention are built using profiled steel and steel plate materials, and have the advantages of factory production, rapid installation, convenient formwork removal and erection, reusable turnover, cost saving, and can be constructed synchronously with the beam yard, shortening the construction period of the beam yard and improving construction efficiency. After completion, when restoring the site, less machinery is invested and the environmental pollution is small. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 Sectional view of the base matching the exemplary precast profiled steel seat for T-beams of the present invention;

[0020] Figure 2 Top view of the base matching the exemplary precast profiled steel seat for T-beams of the present invention;

[0021] Figure 3 Structural diagram of the top plate and the seat body of the exemplary precast profiled steel seat for T-beams of the present invention before installation;

[0022] Figure 4 Structural diagram of the top plate and the seat body of the exemplary precast profiled steel seat for T-beams of the present invention after installation;

[0023] Figure 5 Sectional view of the exemplary precast profiled steel seat for T-beams of the present invention;

[0024] Figure 6 Bottom view of the exemplary precast profiled steel seat for T-beams of the present invention;

[0025] Figure 7 For Figure 4 Cross-sectional view of part A-A in

[0026] Figure 8 Sectional view of the exemplary precast profiled steel seat for T-beams of the present invention placed in the base;

[0027] Figure 9 Side view process diagram of the exemplary precast profiled steel seat for T-beams of the present invention placed in the base. DETAILED DESCRIPTION OF THE INVENTION

[0028] Embodiments of the present invention will be described in detail below. Examples of the embodiments are shown in the accompanying drawings, where like or similar reference numerals designate like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the accompanying drawings are exemplary and are intended to explain the present invention, and should not be construed as limiting the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts fall within the scope of protection of the present invention.

[0029] Embodiment 1

[0030] Exemplarily, the present invention provides a precast steel seat 100 for T-beams. The steel seat 100 can be placed in a base 200 formed by concrete pouring and be relatively fixed to the base 200.

[0031] Among them, Figure 1 is a schematic cross-sectional view of the base 200 matching the precast steel seat 100 for T-beams of the present invention; Figure 2 is a schematic top view of the base 200 matching the precast steel seat 100 for T-beams of the present invention.

[0032] Combined with Figure 1 and Figure 2 as shown, the cross-section of the base 200 formed by pouring is generally concave, which includes a second concave body a and second connecting bodies b vertically connected to both sides of the second concave body a. A plurality of second positioning holes b1 are longitudinally spaced on each second connecting body b; a limiting groove a1 is recessed on the inner bottom surface of the second concave body a. It should be noted that the longitudinal direction described in this embodiment refers to the length direction of the steel seat 100, the base 200, and the pedestal formed by their relative fixation, and the transverse direction refers to the width direction of the steel seat 100, the base 200, and the pedestal formed by their relative fixation. The cross-section refers to the plane intercepted from the width direction of the steel seat 100, the base 200, and the pedestal formed by their relative fixation (the same hereinafter). For example, the longitudinal direction is the direction pointing into the paper in Figure 1 , the transverse direction is the horizontal direction in Figure 1 , and the cross-section is the plane parallel to the paper in Figure 1 .

[0033] Specifically, referring to Figure 3 and Figure 4 as shown, the exemplary steel seat 100 of the present invention includes a seat body 10, a top plate 20 covering the top of the seat body 10, and a traveling mechanism 30 connected to the bottom of the seat body 10. The exemplary precast steel seat 100 for T-beams of the present invention is built using steel sections and steel plates.

[0034] Combined with Figures 3 to 5As shown in the figure, the cross-section of the seat body 10 is generally concave, which includes a first concave body 11 and first connecting bodies 12 vertically connected to both sides of the first concave body 11. A plurality of first positioning holes 121 are longitudinally and spacedly arranged on each first connecting body 12; a plurality of positioning posts 21 that can be inserted into the first positioning holes 121 are longitudinally and spacedly arranged on both sides of the top plate 20. The number of the positioning posts 21 is not more than the number of the first positioning holes 121, and at least one positioning post 21 can be opposite to one first positioning hole 121.

[0035] See Figure 8 As shown in the figure, when the profiled steel seat 100 is placed in the base 200, the outer bottom surface of the first concave body 11 abuts against the inner bottom surface of the second concave body a of the base 200, and the traveling mechanism 30 is placed in the limiting groove a1 of the base 200; the bottom surface of the first connecting body 12 abuts against the upper surface of the second connecting body b of the base 200, and the positioning posts 21 are simultaneously inserted into the first positioning holes 121 and the second positioning holes b1 of the base 200, so that the profiled steel seat 100 and the base 200 are relatively fixed. This method is not only convenient for disassembly, but also when the profiled steel seat 100 is placed in the base 200, the first concave body 11 abuts against the surface of the second concave body a, and the first connecting body 12 abuts against the surface of the second connecting body b, which ensures the overall ability of the formed profiled steel pedestal to resist fracture and excessive deformation, and the strength is reliable. At this time, the traveling mechanism 30 is just placed in the limiting groove a1, and it will not affect the overall structure of the profiled steel pedestal either horizontally or vertically, further ensuring the stability of the structure of the profiled steel pedestal.

[0036] Exemplarily, in combination with Figure 3 and Figure 5 As shown in the figure, connecting seats 40 are longitudinally arranged at both corner parts inside the first concave body 11. I-beams 50 are transversely welded on the two connecting seats 40. There are a plurality of I-beams 50, and the plurality of I-beams 50 are longitudinally and spacedly arranged. A longitudinal beam 60 is welded on the upper part of the I-beams 50, and the bottom surface of the top plate 20 covering the top of the seat body 10 abuts against the top surface of the longitudinal beam 60. Among them, in order to ensure the bearing strength and flatness, a plurality of longitudinal beams 60 are transversely and spacedly welded. Generally, since the strength requirements for both ends of the profiled steel seat 100 are relatively high, therefore, preferably, the arrangement spacing of the I-beams 50 on the front and rear sides of the connecting seats 40 longitudinally is smaller than the arrangement spacing in the middle. Preferably, in order to ensure the strength of the profiled steel seat 100, the two connecting seats 40 are integrally formed with the first concave body 11 and the first connecting body 12.

[0037] As an implementation manner, in combination with Figures 3 to 7As shown, the traveling mechanism 30 includes at least two sets of traveling members, which are longitudinally spaced apart. Each traveling member includes a rotating shaft 311 and a traveling wheel 312 fixed on the rotating shaft. The rotating shaft 311 is horizontally arranged between two connecting seats 40, and both ends of the rotating shaft 311 are respectively rotatably connected to the two connecting seats 40. A through hole 111 is provided at a position on the bottom of the first concave body 11 opposite to the traveling wheel 312, and the traveling wheel 312 passes through the through hole 111 and extends out of the bottom of the first concave body 11. When the profiled steel seat 100 is placed in the base 200, a part of the traveling wheel 312 extends out of the bottom of the first concave body 11 and is placed in the limit groove a1. The traveling mechanism 30 of this embodiment, on the one hand, makes the profiled steel seat 100 itself easy to move, and when it cooperates with the base 200, at least realizes the lateral limit; on the other hand, the way of partial insertion not only ensures the stability of the profiled steel seat 100 during the walking process, but also improves the overall strength of the profiled steel seat 100. It should be noted that the structure of the traveling mechanism 30 of this embodiment is only a preferred mode and is not limited thereto. Preferably, both ends of the rotating shaft 311 are respectively connected to the two connecting seats 40 through bearings (not shown). It should be noted that the setting of the number of sets of traveling members is not limited to two sets, and multiple sets can be arranged at intervals according to the length of the profiled steel seat 100 to improve stability.

[0038] Preferably, in combination with Figure 5 and Figure 6 As shown, each rotating shaft 311 includes at least two traveling wheels 312 that are horizontally spaced apart. The distances between the traveling wheels on the two rotating shafts 311 are not equal, that is, the two traveling wheels in the same longitudinal direction are not on the same straight line. Preferably, along the length direction of the profiled steel seat 100, from one end of the profiled steel seat 100 to the other end, the distances between the traveling wheels on the rotating shaft 311 increase or decrease in sequence. The purpose of this structure is that when the profiled steel seat 100 is placed in the base 200 in a moving manner, the traveling wheel 312 at the head will not fall into the limit groove a1 at the tail, so that the profiled steel seat 100 can stably enter the base 200, and all the traveling wheels 312 can enter the preset corresponding limit groove a1 at the same time. For example, as Figure 6 shown, the two sets of traveling members are spaced apart from left to right. Among them, the distance between the two traveling wheels 312 on the left rotating shaft 311 is W2, the distance between the two traveling wheels 312 on the right rotating shaft 311 is W1, and the width of the traveling wheel 312 is W3, and W2>W1 + 2W3. Among them, the number of traveling wheels 312 arranged on the same rotating shaft 311 is set according to actual needs and is not limited thereto. Moreover, the traveling wheels 312 on the same rotating shaft 311 are placed between two adjacent I-beams 50 in the front and back to avoid interference between the traveling wheels 312 and the I-beams 50 during the walking process.

[0039] In the actual manufacturing process, different lengths of T-beams may be required for the same project. In view of this, referring to Figure 3As shown, one end of the connecting seat 40 of the exemplary profiled steel seat 100 of the present invention is provided with a plug post 80, and the other end is provided with a plug hole (not shown). During the installation process, the plug post 80 is inserted into the plug hole of the adjacent profiled steel seat 100 to achieve splicing, so as to meet the requirements for manufacturing T-beams of different lengths.

[0040] Generally, after the T-beam is fabricated and cast on the pedestal, further curing is required to meet the usage requirements. For this purpose, in combination with Figure 3 and Figure 5 As shown, in the exemplary embodiment of the present invention, the end of the first connecting body 12 extends out of the top plate 20, and a liftable spray curing device 70 is provided on the surface of the extending portion of the first connecting body 12.

[0041] Exemplarily, referring to Figure 5 As shown, the spray curing device 70 includes a lifting mechanism 71 fixed on the extending portion of the first connecting body 12, a spray pipe 72 connected to the top of the lifting mechanism 71, and a nozzle 73 installed at the end of the spray pipe 72. As the lifting mechanism 71 rises and falls, the spray curing device 70 can spray and cure T-beams at different heights and different height parts of the T-beam. Among them, the spray orifice of the nozzle 73 faces the inner side of the profiled steel seat 100, so as to spray and cure the T-beam formed on the top plate 20. Preferably, in order to ensure the spraying effect, multiple groups of the lifting mechanism 71, the spray pipe 72 and the nozzle 73 can be arranged circumferentially around the profiled steel seat 100. Further, in order to ensure the pressure during the spraying process, all the spray pipes 72 can be connected through a spray pipe. It should be noted that the structure of the spray curing device 70 listed in this embodiment is only a preferred method and is not limited thereto. In addition, other components involved in the spraying process (such as a water storage tank, a water pump, etc.) can be specifically referred to the prior art and will not be elaborated here.

[0042] Embodiment 2

[0043] Referring to Figure 8 As shown, the exemplary T-beam precast profiled steel pedestal of the present invention includes a base 200 formed by concrete pouring and the T-beam precast profiled steel seat 100 shown in Embodiment 1 above, and the profiled steel seat 100 can be placed in the base 200.

[0044] In combination with Figure 1 and Figure 2As shown, the cross-section of the cast base 200 is generally concave, which includes a second concave body a and second connecting bodies b vertically connected to both sides of the second concave body a. A plurality of second positioning holes b1 are longitudinally and spacedly arranged on each second connecting body b; a limiting groove a1 is concavely arranged on the inner bottom surface of the second concave body a. It should be noted that the longitudinal direction described in this embodiment refers to the length direction of the steel seat 100, the base 200, and the pedestal formed by their relative fixation, and the transverse direction refers to the width direction of the steel seat 100, the base 200, and the pedestal formed by their relative fixation. The cross-section refers to the cross-section taken from the width direction of the steel seat 100, the base 200, and the pedestal formed by their relative fixation (the same hereinafter). For example, the longitudinal direction is Figure 1 the direction pointing into the paper in Figure 1 and the transverse direction is Figure 1 the horizontal direction in

[0045] The specific structure of the precast steel seat 100 for T-beams refers to the above-mentioned Embodiment 1.

[0046] Continue to refer to Figure 8 As shown, when the steel seat 100 is placed in the base 200, the outer bottom surface of the first concave body 11 abuts against the inner bottom surface of the second concave body a of the base 200, and the traveling mechanism 30 is placed in the limiting groove a1 of the base 200; the bottom surface of the first connecting body 12 abuts against the upper surface of the second connecting body b of the base 200, and the positioning column 21 is inserted into the first positioning hole 121 and the second positioning hole b1 of the base 200 at the same time, so that the steel seat 100 and the base 200 are relatively fixed. This method is not only convenient for disassembly and assembly, but also when the steel seat 100 is placed in the base 200, the first concave body 11 abuts against the second concave body a surface, and the first connecting body 12 abuts against the second connecting body b surface, ensuring the overall ability of the formed steel pedestal to resist fracture and excessive deformation, and the strength is reliable. At this time, the traveling mechanism 30 is just placed in the limiting groove a1, and it will not affect the overall structure of the steel pedestal in both the transverse and longitudinal directions, further ensuring the stability of the steel pedestal structure.

[0047] Preferably, the second connecting body b is in a stepped shape, so that when the steel seat 100 is placed in the base 200, the upper surface of the top plate 20 of the steel seat 100 is flush with the top surface of the second connecting body b, ensuring the flatness of the top plane of the precast steel pedestal for T-beams and facilitating construction.

[0048] Among them, there are approximately two ways to place the profiled steel seat 100 on the base 200. One is that the profiled steel seat 100 that has walked to the preset position can be placed in the base 200 through a hoisting device. In this method, one way is that the top plate 20 can be installed on the seat body 10 first, and then the profiled steel seat 100 with the top plate 20 installed can be integrally placed in the base 200 through a hoisting device, so that the traveling mechanism 30 is placed in the limiting groove a1 of the base 200, and the positioning column 21 is simultaneously inserted into the first positioning hole 121 and the second positioning hole b1 of the base 200 to complete the positioning and installation. Another way is to first place the profiled steel seat 100 without the top plate 20 installed in the base 200 through a hoisting device, so that the traveling mechanism 30 is placed in the limiting groove a1 of the base 200, and the first positioning hole 121 and the second positioning hole b1 are aligned one by one; then the top plate 20 is placed on the profiled steel seat 100 through a hoisting device, so that the positioning column 21 is simultaneously inserted into the first positioning hole 121 and the second positioning hole b1 of the base 200 to complete the positioning and installation.

[0049] The other is that the profiled steel seat 100 that has walked to the preset position can be placed in the base 200 by moving it. In this method, one way is that the top plate 20 can be installed on the seat body 10 first, and then the profiled steel seat 100 with the top plate 20 installed can be moved into the base 200, so that the traveling mechanism 30 is placed in the limiting groove a1 of the base 200, and the positioning column 21 is simultaneously inserted into the first positioning hole 121 and the second positioning hole b1 of the base 200 to complete the positioning and installation. Another way is to first move the profiled steel seat 100 without the top plate 20 installed into the base 200, so that the traveling mechanism 30 is placed in the limiting groove a1 of the base 200, and the first positioning hole 121 and the second positioning hole b1 are aligned one by one; then the top plate 20 is placed on the profiled steel seat 100 through a hoisting device, so that the positioning column 21 is simultaneously inserted into the first positioning hole 121 and the second positioning hole b1 of the base 200 to complete the positioning and installation.

[0050] The way of moving saves manpower and material resources during the transportation and installation processes, and further improves the installation efficiency. Among them, if the upward moving method is adopted, then during the disassembly process, it is necessary to first remove the top plate 20 through a hoisting device, and then push the profiled steel seat 100 in the reverse direction so that the profiled steel seat 100 is removed from the base 200.

[0051] Preferably, if the profiled steel seat 100 is placed in the base 200 by moving it, as shown in Figure 9 the limiting groove a1 on the inner bottom surface of the second concave body a has an inclined surface that facilitates the profiled steel seat 100 to slide into the limiting groove a1. This inclined surface ensures that the profiled steel seat 100 can stably enter the base 200 on the one hand, and on the other hand, it is convenient for the profiled steel seat 100 to be removed. As shown by the arrow in Figure 9 the direction indicated is the traveling direction of the profiled steel seat 100.

[0052] The precast steel pedestal and precast steel bench for T-beams of the present invention are constructed using steel sections and steel plate materials, featuring factory production, rapid installation, convenient formwork erection and removal, reusable turnover, cost savings, and synchronous construction with the beam yard, which shortens the construction period of the beam yard and improves construction efficiency. After completion, during site restoration, less machinery is involved and environmental pollution is minimal.

[0053] The above are only the preferred embodiments of the present invention, and do not limit the patent scope of the present invention. Any equivalent structural transformation made under the inventive concept of the present invention by using the content of the specification and drawings of the present invention, or any direct / indirect application in other related technical fields, is included in the patent protection scope of the present invention.

Claims

1. A precast steel seat for T-beams, the steel seat can be placed in a base formed by concrete pouring, characterized in that, The profiled steel seat includes a seat body, a top plate covering the top of the seat body, and a traveling mechanism connected to the bottom of the seat body; the cross-section of the seat body is generally concave, and it includes a first concave body and first connecting bodies vertically connected to both sides of the first concave body. A plurality of first positioning holes are longitudinally arranged at intervals on each of the first connecting bodies; a plurality of positioning columns that can be inserted into the first positioning holes are longitudinally arranged at intervals on both sides of the top plate. When the profiled steel seat is placed in the base, the outer bottom surface of the first concave body abuts against the inner bottom surface of the second concave body of the base, and the traveling mechanism is placed in the limiting groove of the base; the bottom surface of the first connecting body abuts against the upper surface of the second connecting body of the base, and the positioning columns are simultaneously inserted into the first positioning holes and the second positioning holes of the base; so that the profiled steel seat and the base are relatively fixed. Connecting seats are longitudinally arranged at both corner parts on both sides inside the first concave body. A plurality of I-beams are welded horizontally on the two connecting seats. There are a plurality of the I-beams, and the plurality of I-beams are longitudinally arranged at intervals. A longitudinal beam is welded on the upper part of the I-beams. The bottom surface of the top plate covering the top of the seat body abuts against the top surface of the longitudinal beam. One end of the connecting seat is provided with a plug-in column, and the other end is provided with a plug-in hole; the end of the first connecting body extends out of the top plate, and a liftable spray curing device is arranged on the surface of the extending part of the first connecting body.

2. The precast steel seat for T-shaped beams according to claim 1, characterized in that, The traveling mechanism includes at least two groups of traveling parts. The two groups of traveling parts are longitudinally arranged at intervals. Each traveling part includes a rotating shaft and traveling wheels fixed on the rotating shaft. The rotating shaft is horizontally arranged between the two connecting seats, and both ends of the rotating shaft are respectively rotatably connected to the two connecting seats; through holes are arranged at positions on the bottom of the first concave body opposite to the traveling wheels, and the traveling wheels pass through the through holes and extend out of the bottom of the first concave body.

3. The precast steel seat for T-shaped beams according to claim 2, characterized in that, Both ends of the rotating shaft are respectively connected to the two connecting seats through bearings.

4. The precast steel seat for T-beam according to claim 2, wherein Each rotating shaft includes at least two traveling wheels arranged horizontally at intervals, and the distances between the traveling wheels on the two rotating shafts are not equal.

5. The precast steel seat for T-beams according to claim 1, characterized in that The spray curing device includes a lifting mechanism fixed on the extending part of the first connecting body, a spray pipe connected to the top of the lifting mechanism, and a nozzle installed at the end of the spray pipe.

6. A precast steel pedestal for T-beams, characterized in that, It includes a base formed by pouring concrete and the T-beam precast profiled steel seat according to any one of claims 1 to 5. The profiled steel seat can be placed in the base; wherein, The cross-section of the base is generally concave, and it includes a second concave body and second connecting bodies vertically connected to both sides of the second concave body. A plurality of second positioning holes are longitudinally arranged at intervals on each of the second connecting bodies; a limiting groove is recessed on the inner bottom surface of the second concave body. When the profiled steel seat is placed in the base, the outer bottom surface of the first concave body of the profiled steel seat abuts against the inner bottom surface of the second concave body, and the traveling mechanism of the profiled steel seat is placed in the limiting groove; the bottom surface of the first connecting body of the profiled steel seat abuts against the upper surface of the second connecting body, and the positioning columns of the profiled steel seat are simultaneously inserted into the first positioning holes and the second positioning holes of the profiled steel seat; so that the profiled steel seat and the base are relatively fixed.

7. The precast steel T-beam pedestal according to claim 6, characterized in that, The second connecting body is stepped, such that when the profiled steel seat is placed within the base, the upper surface of the top plate of the profiled steel seat is flush with the top surface of the second connecting body.

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