Positioning device for sectional assembling and assembling of steel beam

Abstract

The utility model relates to a positioning device for sectional assembling and assembling of a steel beam, which comprises an assembling and assembling expanded foundation, the assembling and assembling expanded foundation comprises a longitudinal distribution beam and a plurality of transverse distribution beams which are sequentially arranged at intervals along the length direction of the longitudinal distribution beam, and the bottoms of the transverse distribution beams and the longitudinal distribution beam are connected with an assembling and assembling base; and the two assembling and positioning mechanisms are symmetrically arranged at the tops of the two ends of the assembling and assembling expanded foundation, each assembling and positioning mechanism comprises a tensile stand column perpendicularly connected with the assembling and assembling expanded foundation, and a bolt connecting plate is arranged on the side wall of each tensile stand column. According to the positioning device, a supporting platform is provided for assembling and assembling of the steel beam sections through the assembling and assembling expanded foundation, the problem of differential settlement in the construction process is avoided, and therefore the accuracy of sectional assembling and assembling of the steel beam sections is improved. The construction difficulty is reduced and the construction period is shortened while the section assembling and assembling accuracy of the steel beam is improved, so that the field construction efficiency is greatly improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of steel structure bridge construction, and particularly relates to a positioning device for sectional assembly of a steel beam. BACKGROUND

[0002] In modern engineering construction, steel structures are widely used in large engineering constructions such as bridges, roads and buildings due to high structural stability, large span capacity, light weight and high strength of raw materials, good plasticity and toughness, and sectional installation. In the current steel structure bridge construction process, whether it is steel truss bridge construction, steel arch bridge construction or other steel structure bridge construction, steel structure bridge construction involves the process of sectional assembly of a steel beam. The sectional assembly of the steel beam is performed to make the steel beam into a load-bearing assembly type steel structure bridge with different spans by using the least number of unit components. However, in actual construction, the sectional assembly of the steel beam often has the following problems:

[0003] The conventional steel beam cannot be transported to the site as a whole due to its large size, and needs to be transported in sections. After being transported in sections to the construction site, the sectional steel beam needs to be reassembled into a whole. Due to limited construction conditions and non-professional steel beam manufacturing bases, the conventional device cannot achieve the precision requirements of the sectional assembly of the steel beam, resulting in large dimensional deviation of the sectional assembly of the steel beam on site, which makes it difficult to install on site and greatly increases the construction difficulty. The conventional device has weak constraint on the sectional assembly of the steel beam, and uncontrollable deformation occurs during the sectional assembly of the steel beam, which makes it difficult to control the overall precision of the steel beam, increases the construction difficulty of the steel beam installation, increases the construction period on site, and even affects the linear shape of the entire steel structure installation.

[0004] Due to the difference between the construction environment on site and the steel beam manufacturing base, the conventional device has limited bearing capacity due to different geology, and local or entire devices may have uneven settlement, resulting in uncontrollable dimensional deviation during the sectional assembly of the steel beam, and the dimensional deviation cannot be reversed. In addition, the conventional device needs more materials, occupies a large construction area, and most of the materials cannot be recycled after the device is removed, resulting in a large amount of material waste. SUMMARY

[0005] The embodiment of the present application provides a positioning device for sectional assembly of a steel beam to solve the problem of weak constraint of the conventional device on the sectional assembly of the steel beam, uncontrollable deformation during the sectional assembly of the steel beam, and difficult control of the overall precision of the steel beam.

[0006] The embodiment of the present application provides a positioning device for sectional assembly of a steel beam, which comprises:

[0007] The group assembly expanded foundation comprises longitudinal distribution beams and a plurality of transverse distribution beams arranged in sequence and at intervals along the length direction of the longitudinal distribution beams, and the transverse distribution beams are connected with the bottom of the longitudinal distribution beams through group assembly pedestals;

[0008] The group assembly expanded foundation comprises longitudinal distribution beams and a plurality of transverse distribution beams arranged in sequence and at intervals along the length direction of the longitudinal distribution beams, and the transverse distribution beams are connected with the bottom of the longitudinal distribution beams through group assembly pedestals;

[0009] In some embodiments, the group assembly pedestals comprise longitudinal pedestals and a plurality of transverse pedestals, the longitudinal pedestals extend along the length direction of the longitudinal distribution beams, and the width of the longitudinal pedestals is greater than the width of the longitudinal distribution beams;

[0010] The transverse pedestals are connected perpendicularly with the longitudinal pedestals and have flush top surfaces, the transverse pedestals extend along the length direction of the transverse distribution beams, and the top of each of the transverse pedestals is connected with two transverse distribution beams parallel with each other.

[0011] In some embodiments, the longitudinal distribution beams are connected perpendicularly with the plurality of transverse distribution beams and have flush top surfaces, and the transverse distribution beams at the two ends of the longitudinal distribution beams are connected perpendicularly with the tensile columns at the connection positions of the longitudinal distribution beams.

[0012] In some embodiments, the side of the tensile column away from the bolted plate is provided with a diagonal brace connected with the longitudinal distribution beam, a right-angled triangle structure is formed among the diagonal brace, the tensile column and the longitudinal distribution beam, and a reinforcing rib is arranged at the connection position of the diagonal brace and the tensile column.

[0013] In some embodiments, the diagonal brace is provided with a plurality of diagonal braces, the lengths of the plurality of diagonal braces gradually increase, and the two ends of each of the diagonal braces are connected with the longitudinal distribution beam and the tensile column respectively to form a plurality of right-angled triangle stable structures.

[0014] In some embodiments, the height adjustment supports for adjusting the height of the steel beam segment are arranged on the plurality of transverse distribution beams between the transverse distribution beams at the two ends of the longitudinal distribution beam, and the height adjustment supports have a "door" shape structure.

[0015] In some embodiments, the top of the height adjustment support is provided with a rubber pad fixedly connected with the height adjustment support, the height adjustment support is plug-in connected with the transverse distribution beam, and a jack is arranged on the transverse distribution beam to lift the height adjustment support.

[0016] In some embodiments: the top of the two ends of the longitudinal distribution beam is provided with a mark line, the mark line is located between the two tensile columns, the mark line is a "cross" or a "one" shape, and the distance between the two mark lines is equal to the sum of the lengths of the multiple steel beam segments.

[0017] In some embodiments: the two side walls of the bolted plate are respectively connected with the symmetrically arranged adapter plates through bolts, and the adapter plates away from the bolted plate are provided with punch nails for connecting the steel beam segments.

[0018] In some embodiments: the transverse distribution beam, the longitudinal distribution beam and the tensile column are all made of profiled steel, and the transverse distribution beam, the longitudinal distribution beam and the tensile column are welded to each other to form an integral whole.

[0019] The technical scheme provided by the application has the beneficial effects of:

[0020] The positioning device for steel beam segmented assembly provided by the embodiments of the application sets a segmented assembly expansion foundation, which includes a longitudinal distribution beam and multiple transverse distribution beams arranged in sequence and at intervals along the length direction of the longitudinal distribution beam, and the transverse distribution beam is connected with the bottom of the longitudinal distribution beam through a segmented assembly base; and a segmented positioning mechanism, which is provided with two groups and symmetrically arranged at the top of the two ends of the segmented assembly expansion foundation, includes a tensile column connected with the segmented assembly expansion foundation perpendicularly, and the side wall of the tensile column is provided with a bolted plate.

[0021] Therefore, the positioning device for steel beam segmented assembly provided by the application provides a support platform for steel beam segmented assembly through the segmented assembly expansion foundation, is suitable for various geological conditions under different construction environment states, can strengthen the bearing capacity of the positioning device according to different geological conditions, meets the demand of the bearing capacity of the positioning device for steel beam segmented assembly under any geological condition, avoids uneven settlement problems in the construction process, and thus improves the accuracy of steel beam segmented assembly.

[0022] In addition, the top of the two ends of the segmented assembly expansion foundation is provided with two groups and symmetrically arranged segmented positioning mechanisms, the segmented positioning mechanisms constrain the steel beam segmented assembly, the steel beam segmented assembly can restore the connection condition of the steel beam installation when segmented assembly on the positioning device, and the steel beam can have the smallest deformation amount as much as possible when the connection condition of the steel beam installation is restored, which improves the accuracy of steel beam segmented assembly and reduces the construction difficulty and saves the construction period, thereby greatly improving the on-site construction efficiency. The technical problems of the on-site steel beam segmented assembly device are solved, and the on-site construction difficulty is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative effort on the basis of these drawings.

[0024] Figure 1 The structural schematic diagram of the embodiment of the present application is shown in the figure.

[0025] Figure 2 The structural schematic diagram of the segmented group splicing and assembling steel beam segment of the embodiment of the present application is shown in the figure.

[0026] Figure 3 The local structural schematic diagram of the embodiment of the present application is shown in the figure.

[0027] Figure 4 The local structural schematic diagram of the segmented group splicing and assembling steel beam segment of the embodiment of the present application is shown in the figure.

[0028] Reference signs:

[0029] 1, splicing and assembling base; 2, transverse distribution beam; 3, longitudinal distribution beam; 4, height adjusting support; 5, marking line; 6, tensile column; 7, inclined brace; 8, reinforcing rib; 9, bolted plate; 10, adapter plate; 11, punch pin; 12, steel beam segment. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical solutions and advantages of the embodiments of the present application more clear, the technical solutions in the embodiments of the present application will be described clearly and completely in the following with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, not all. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative effort belong to the scope of protection of the present application.

[0031] The embodiment of the present application provides a positioning device for steel beam segmented group splicing and assembling, which can solve the problem that the constraint force of the conventional device on the steel beam segmented group splicing and assembling is not strong, uncontrollable deformation occurs in the steel beam segmented group splicing and assembling process, and the overall precision of the steel beam is difficult to control.

[0032] Referring to Figures 1 to 4 The embodiment of the present application provides a positioning device for steel beam segmented group splicing and assembling, which includes:

[0033] The group assembly expansion foundation comprises a longitudinal distribution beam 3 and a plurality of transverse distribution beams 2 arranged in sequence and at intervals along the length direction of the longitudinal distribution beam 3, and the transverse distribution beam 2 is connected with the bottom of the longitudinal distribution beam 3 through a group assembly base 1. The transverse distribution beam 2, the longitudinal distribution beam 3 and the group assembly base 1 are fixedly connected with each other to form a group assembly expansion foundation with stable structure, which serves as a bearing foundation for the segmented group assembly of the steel beam segment 12, and avoids uneven settlement in the construction process, thereby improving the accuracy of the segmented group assembly of the steel beam segment 12.

[0034] The group assembly positioning mechanism is provided with two groups and is symmetrically arranged at the top of the two ends of the group assembly expansion foundation, and comprises a tensile column 6 connected with the group assembly expansion foundation perpendicularly, and a bolted plate 9 arranged on the side wall of the tensile column 6. The group assembly positioning mechanism is provided with two groups and is fixed at the two ends of the group assembly expansion foundation respectively, and uses the tensile column 6 and the bolted plate 9 to jointly position and connect the steel beam segment 12, so that the end of the steel beam segment 12 is anchored with the positioning device to form a whole, thereby restraining the deformation of the steel beam segment 12 in the group assembly welding process and fixing the overall length of the steel beam.

[0035] The positioning device for the segmented group assembly of the steel beam according to the embodiments of the present application provides a support platform for the segmented group assembly of the steel beam segment 12 through the group assembly expansion foundation, is suitable for various geological conditions under different construction environment states, can strengthen the bearing capacity of the positioning device according to different geological conditions, meets the demand of the segmented group assembly of the steel beam segment 12 on the bearing capacity of the positioning device under any geological condition, avoids uneven settlement in the construction process, and thereby improves the accuracy of the segmented group assembly of the steel beam segment.

[0036] In addition, the top of the two ends of the group assembly expansion foundation is provided with two groups of symmetrically arranged group assembly positioning mechanisms, which provide restraint force for the segmented group assembly of the steel beam segment 12. When the steel beam segment 12 is segmented and group assembled on the positioning device, the connection condition of the steel beam during installation can be restored, the steel beam is made to have the smallest phase change amount as much as possible in the restored connection condition of the steel beam during installation, the accuracy of the segmented group assembly of the steel beam is improved, the construction difficulty is reduced and the construction period is saved, and thereby the on-site construction efficiency is greatly improved. The technical problem of the on-site segmented group assembly device of the steel beam segment 12 is solved, and the on-site construction difficulty is reduced.

[0037] In some optional embodiments, see Figures 1 to 4As shown, the embodiment of the present application provides a positioning device for sectional assembly of steel beam, the positioning device of the embodiment of the present application comprises a longitudinal base and a plurality of transverse bases, the longitudinal base extends along the length direction of the longitudinal distribution beam 3, and the width of the longitudinal base is greater than the width of the longitudinal distribution beam 3. The transverse base is connected perpendicularly to the longitudinal base and the top surface is flush, the transverse base extends along the length direction of the transverse distribution beam, and the top of each transverse base is connected with two transverse distribution beams 2 which are parallel to each other. The transverse distribution beam 2, the longitudinal distribution beam 3 and the tension column 6 are all profile steels, such as I-beams, channel steels, square steels and the like, the transverse distribution beam 2, the longitudinal distribution beam 3 and the tension column 6 are connected by welding to form an integral whole, and the assembly base 1 can be a steel plate base or a concrete base with a set thickness.

[0038] The assembly base 1 of the embodiment of the present application is composed of a longitudinal base and a plurality of transverse bases, wherein the longitudinal base extends along the length direction of the longitudinal distribution beam 3, the transverse base extends along the length direction of the transverse distribution beam, and the longitudinal base and the transverse base are connected to form an integral whole. The longitudinal base provides basic support for the longitudinal distribution beam 3, and the transverse base provides basic rigid support for the transverse distribution beam 2, thereby improving the structural strength and stress area of the transverse distribution beam 2 and the longitudinal distribution beam 3. The assembly base 1, the transverse distribution beam 2 and the longitudinal distribution beam 3 are connected to form an integral whole to bear the load of the steel beam assembly.

[0039] In some optional embodiments, referring to Figures 1 to 4 As shown, the embodiment of the present application provides a positioning device for sectional assembly of steel beam, the longitudinal distribution beam 3 of the positioning device is connected perpendicularly to a plurality of the transverse distribution beams 2 and the top surfaces are flush, and the transverse distribution beams 2 at both ends of the longitudinal distribution beam 3 are connected perpendicularly to the tension column 6 at the connection position of the longitudinal distribution beam 3. The tension column 6 is connected perpendicularly to the connection position of the transverse distribution beam 2 and the longitudinal distribution beam 3, and the transverse distribution beam 2, the longitudinal distribution beam 3 and the tension column 6 are connected perpendicularly two by two.

[0040] The transverse distribution beam 2 at the end of the steel beam segment 12 is located below the tension column 6, the transverse distribution beam 2 is flush with the top surface of the longitudinal distribution beam 3 and is connected perpendicularly thereto. The longitudinal distribution beam 3 is arranged in parallel to the bottom of the steel beam segment 12, the longitudinal distribution beam 3 is connected perpendicularly to the transverse distribution beam 2 and the tension column 6, so that the longitudinal distribution beam 3, the transverse distribution beam 2 and the tension column 6 are connected to form an integral whole, thereby increasing the structural stability of the tension column 6.

[0041] In some optional embodiments, referring to Figures 1 to 4As shown, the embodiment of the present application provides a positioning device for steel beam segmented group assembly, the anti-tension column 6 of the positioning device is provided with a diagonal brace 7 connected with the longitudinal distribution beam 3 on the side away from the bolted plate 9. The diagonal brace 7, the anti-tension column 6 and the longitudinal distribution beam 3 form a right triangle structure, and the connection between the diagonal brace 7 and the anti-tension column 6 is provided with a reinforcing rib 8.

[0042] The diagonal brace 7 is provided with a plurality of diagonal braces 7, the lengths of the plurality of diagonal braces 7 gradually increase, and the two ends of each diagonal brace 7 are connected with the longitudinal distribution beam 3 and the anti-tension column 6 respectively to form a plurality of right triangle stable structures. The diagonal brace 7 is connected with the longitudinal distribution beam 3 at one end and connected with the anti-tension column 6 at the other end, and the three together form a triangular structure to increase the tensile capacity of the positioning device. The reinforcing rib 8 is arranged inside the anti-tension column 6 to strengthen the rigidity of the anti-tension column 6 and further strengthen the tensile strength of the connection of the diagonal brace 7.

[0043] In some optional embodiments: see Figures 1 to 4 As shown, the embodiment of the present application provides a positioning device for steel beam segmented group assembly, the anti-tension column 6 of the positioning device is provided with a diagonal brace 7 connected with the longitudinal distribution beam 3 on the side away from the bolted plate 9. The diagonal brace 7, the anti-tension column 6 and the longitudinal distribution beam 3 form a right triangle structure, and the connection between the diagonal brace 7 and the anti-tension column 6 is provided with a reinforcing rib 8.

[0044] The top of the height adjusting support 4 is provided with a rubber pad (not shown in the figure), the rubber pad is fixedly connected with the height adjusting support 4, the height adjusting support 4 is plug-in connected with the transverse distribution beam 2, and the transverse distribution beam 2 is provided with a jack (not shown in the figure) for lifting the height adjusting support 4. The rubber pad at the top of the height adjusting support 4 is in contact with the bottom of the steel beam for adjusting the height of the bottom of the steel beam, and at the same time, the contact surface coating of the bottom plate of the steel beam is protected from being damaged. The height of the adjusting jack can be adjusted to accurately control the height of each steel beam segment 12, so as to control the precise cooperation of each steel beam segment 12.

[0045] In some optional embodiments: see Figures 3 to 4 As shown, the embodiment of the present application provides a positioning device for steel beam segmented group assembly, the anti-tension column 6 of the positioning device is provided with a diagonal brace 7 connected with the longitudinal distribution beam 3 on the side away from the bolted plate 9. The diagonal brace 7, the anti-tension column 6 and the longitudinal distribution beam 3 form a right triangle structure, and the connection between the diagonal brace 7 and the anti-tension column 6 is provided with a reinforcing rib 8.

[0046] In some optional embodiments: see Figures 1 to 4As shown, the embodiment of the present application provides a positioning device for sectional assembly of steel beams, the two side walls of the bolted plate 9 of the positioning device are respectively connected with the symmetrically arranged adapter plates 10 through bolts, and the adapter plates 10 are provided with punch bolts 11 for connecting the steel beam segments 12 on the side away from the bolted plate 9. The bolt holes of the bolted plate 9 and the adapter plates 10 are connected with the bolt holes of the steel beam segments 12 through the bolts and the punch bolts 11, so that the end of the steel beam segment 12 is anchored with the positioning device to form a whole, thereby restraining the deformation of the steel beam during the assembly and welding process and fixing the overall length of the steel beam.

[0047] In specific use: the end of the steel beam segment 12 is placed on the height adjusting support 4 in alignment with the mark line 5, the height of the bottom of the steel beam segment 12 is adjusted through the height adjusting support 4 to meet the requirements, and the end of the steel beam segment 12 is fixedly connected with the bolt holes of the steel beam segment 12 through the bolt holes of the bolted plate 9 and the adapter plates 10 through the bolts and the punch bolts 11, so that the end of the steel beam segment 12 is anchored with the positioning device to form a whole.

[0048] After the sectional assembly of the steel beam segments 12 is completed, the bolts and the punch bolts 11 and the adapter plates 10 at both ends are removed, the constraint of the steel beam is released, and the whole is hoisted from the positioning device to the storage position, and the next group of steel beams is continued to be assembled according to the above operation steps, so that the operability and accuracy of the sectional assembly of the steel beam are greatly improved, and the work efficiency is further improved while the safety of the personnel is ensured.

[0049] In the description of the present application, it should be noted that the positions or position relationships indicated by the terms "upper", "lower" and the like are based on the positions or position relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular position, be constructed and operated in a particular position, and therefore cannot be understood as a limitation on the present application. Unless otherwise specified and limited, the terms "mounting", "connection", "connection" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0050] It should be noted that, in the present application, the relational terms such as "first" and "second", and the like, are used solely to distinguish one entity or action from another, without necessarily requiring or implying any actual relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can also include other elements not expressly listed or inherent to such process, method, article, or apparatus. An element proceeded by "comprises... a" does not, without more constraints, exclude the existence of additional identical elements in the process, method, article, or apparatus that comprises the element.

[0051] The foregoing is merely illustrative of the principles of the application and various modifications can be made by those skilled in the art without departing from the spirit and scope of the application. The above embodiments are illustrative, and not restrictive, of the scope of the application.

Claims

1. A positioning device for assembling steel beam sections, characterized in that: The utility model relates to a kind of steel beam segmented assembly positioning device, including: Group assembly expansion foundation, the group assembly expansion foundation includes longitudinal distribution beam (3), and multiple transverse distribution beams (2) are sequentially spaced along the length direction of longitudinal distribution beam (3), and the bottom of longitudinal distribution beam (3) is connected with group assembly pedestal (1) by transverse distribution beam (2); Group assembly positioning mechanism is provided with two groups and symmetrically arranged at the top of both ends of group assembly expansion foundation, including tension column (6) being connected with group assembly expansion foundation mutually perpendicularly, and bolted plate (9) is arranged on the side wall of tension column (6).

2. The positioning device for steel beam segmented assembly according to claim 1, wherein: The group assembly pedestal (1) includes longitudinal pedestal and multiple transverse pedestals, the longitudinal pedestal extends along the length direction of the longitudinal distribution beam (3), and the width of the longitudinal pedestal is greater than the width of the longitudinal distribution beam (3); The transverse pedestal is connected with the longitudinal pedestal perpendicularly and the top surfaces are flush, the transverse pedestal extends along the length direction of the transverse distribution beam (2), and the top of each transverse pedestal is connected with two transverse distribution beams (2) parallel to each other.

3. The positioning device for steel beam segmented assembly according to claim 1 or 2, wherein: The longitudinal distribution beam (3) is connected with multiple transverse distribution beams (2) perpendicularly and the top surfaces are flush, and the transverse distribution beams (2) at both ends of the longitudinal distribution beam (3) are connected with the tension column (6) perpendicularly at the connection position of the longitudinal distribution beam (3).

4. The positioning device for steel beam segmented assembly according to claim 3, wherein: The side of the tension column (6) away from the bolted plate (9) is provided with a diagonal brace (7) connected with the longitudinal distribution beam, a right-angled triangle structure is formed among the diagonal brace (7), the tension column (6) and the longitudinal distribution beam (3), and a reinforcing rib (8) is arranged at the connection position of the diagonal brace (7) and the tension column (6).

5. The positioning device for steel beam segmented assembly according to claim 4, wherein: The diagonal brace (7) is provided with multiple diagonal braces (7), the lengths of the multiple diagonal braces (7) gradually increase, and both ends of each diagonal brace (7) are connected with the longitudinal distribution beam (3) and the tension column (6) respectively to form multiple right-angled triangle stable structures.

6. The positioning device for steel beam segmented assembly according to claim 3, wherein: The multiple transverse distribution beams (2) between the transverse distribution beams (2) at both ends of the longitudinal distribution beam (3) are connected with height adjustment supports (4) for adjusting the height of the steel beam segment (12), and the height adjustment support (4) is a "door" shaped structure.

7. The positioning device for steel beam segmented assembly according to claim 6, wherein: The top of the height adjusting support (4) is provided with a rubber pad, which is fixedly connected with the height adjusting support (4), the height adjusting support (4) is plug-connected with the transverse distribution beam (2), and the transverse distribution beam (2) is provided with a jack for jacking up the height adjusting support (4).

8. The positioning device for sectional assembly of steel beams according to claim 1, characterized in that: The top of the longitudinal distribution beam (3) is provided with a mark line (5) at both ends, the mark line (5) is located between two tensile columns (6), the mark line (5) is in the shape of "cross" or "one", and the distance between the two mark lines (5) is equal to the sum of the lengths of the steel beam segments (12).

9. The positioning device for sectional assembly of steel beams according to claim 1, characterized in that: The two side walls of the bolted plate (9) are respectively connected with symmetrically arranged adapter plates (10) through bolts, the side of the adapter plate (10) away from the bolted plate (9) is provided with a punch pin (11) and a bolt for connecting the steel beam segment (12).

10. The positioning device for sectional assembly of steel beams according to claim 1, characterized in that: The transverse distribution beam (2), the longitudinal distribution beam (3) and the tensile column (6) are all made of profile steel, and the transverse distribution beam (2), the longitudinal distribution beam (3) and the tensile column (6) are welded with each other to form an integrated body.

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