CN118148292B

CN118148292B - Assembled roof structure

Info

Publication number: CN118148292B
Application number: CN202410571735.3A
Authority: CN
Inventors: 寻轶; 曾祺敏; 吴守南
Original assignee: Guangdong University of Technology
Current assignee: Guangdong University of Technology
Priority date: 2024-05-10
Filing date: 2024-05-10
Publication date: 2024-07-23
Anticipated expiration: 2044-05-10
Also published as: CN118148292A

Abstract

The invention discloses an assembled roof structure, which relates to the technical field of house structures and comprises a house keel beam, a truss beam fixedly arranged on the house keel beam, a plurality of vertical columns fixedly arranged on the truss beam, a transverse column connected between the tops of the plurality of vertical columns, a top keel arranged between the transverse column and the truss beam, clamping plate frames arranged at two ends of the top keel, a plurality of clamping grooves arranged at two sides of the clamping plate frames, a plurality of clamping frames fixedly arranged on the transverse column, a plurality of limiting frames arranged at two sides of the clamping frame, and clamping blocks arranged in each limiting frame.

Description

Assembled roof structure

Technical Field

The invention relates to the technical field of house structures, in particular to an assembled roof structure.

Background

The assembled roof is a part of an assembled building, namely, components and accessories of the roof part are prefabricated in a factory and then transported to a building construction site, and a large amount of site operations are transferred to the factory in a reliable connection mode to have higher construction efficiency and quality control capability, and in the assembled building, common roof plates comprise steel structure roof plates, sandwich plates and the like;

The assembled building has the advantages of environmental protection, high construction speed and the like, becomes one of important directions of future building development, and compared with the traditional roof, the assembled roof has the following advantages of high construction speed: the method adopts the manners of factory prefabrication and field assembly, so that the construction time can be greatly shortened, and the construction efficiency is improved; the quality is reliable, the factory production can strictly control the quality of roof members, the precision and the quality of the members are ensured, and the quality problem in site construction is reduced; the energy-saving environment-friendly assembled roof is made of light and high-strength materials, so that the overall weight of the building can be reduced, and the pressure on the environment is reduced; the adaptability is strong, the assembled roof is suitable for various building types and climatic conditions, can be customized according to different requirements, and has stronger adaptability; the maintenance is convenient, and the components of the assembled roof can be disassembled and replaced, so that the maintenance and repair in the later period are convenient; in the actual assembly process, constructors move components such as a keel beam, a column, a truss beam, a top keel and the like to the installation place through hanging frames or other lifting equipment, when the top keel is installed, the constructors firstly need to align threaded holes on the top keel and the column, then fix the top keel and the column through bolts, and as the roof is used as a top bearing structure of a house, the top keel on the roof always has a loose condition due to the fact that the roof bears a load of a certain weight for a long time in the actual use process, so that the stability of the roof structure is influenced.

Disclosure of Invention

The present invention is directed to a fabricated roof structure, which solves the above-mentioned problems of the prior art.

In order to achieve the above purpose, the present invention provides the following technical solutions: the utility model provides an assembled roof structure, includes house fossil fragments roof beam, fixed mounting just truss roof beam on house fossil fragments roof beam, fixed mounting has a plurality of vertical stands on the truss roof beam, and a plurality of still be connected with horizontal stand between the vertical stand top, be provided with the fossil fragments between horizontal stand and the truss roof beam, top fossil fragments both ends fixed mounting has joint grillage, just joint grillage both sides all are provided with a plurality of draw-in grooves, fixed mounting has a plurality of joint frames on the horizontal stand, wherein joint frame both sides fixed mounting has a plurality of spacing frames, every spacing frame is inside all to be provided with the joint block body, the joint block body is corresponding with the draw-in groove, joint block body both sides fixed mounting has flexible axis body, and spacing frame inner wall is provided with spacing cell body, just flexible axis body tip is spacing in spacing cell internal slip, spacing frame inside is provided with the slider, just be connected with reset spring between slider and the joint block body.

Preferably, the limiting groove body comprises an inclined descending region, a clamping region communicated with the end part of the inclined descending region, an inclined ascending region communicated with the clamping region and the other end of the inclined descending region, and a plurality of guide plate bodies.

Preferably, the sliding part comprises an L-shaped plate frame arranged inside the limiting frame, grooves are formed in inner walls of two sides of the limiting frame, two sides of the L-shaped plate frame are in limiting sliding in the grooves, a guide shaft body is fixedly installed on the L-shaped plate frame, the clamping block body is in limiting sliding on the guide shaft body, the L-shaped plate frame is connected with the clamping block body through a reset spring, and a spring part is connected between the bottom of the limiting frame and the L-shaped plate frame.

Preferably, a first supporting frame body is fixedly connected between the top keel and the vertical upright column, a second supporting frame body is fixedly connected between the top keel and the truss girder, the first supporting frame body and the second supporting frame body are in a parallel state, and a reinforcing frame is fixedly connected between the second supporting frame body and the truss girder.

Preferably, a transverse stiffening beam is fixedly connected between the first support frame and the second support frame, a connecting frame is fixedly installed on the transverse stiffening beam, a protection frame is fixedly installed on the top keel, and the protection frame is installed at the middle part of the top keel, wherein the protection frame is fixedly connected with the connecting frame through bolts.

Preferably, the bottom of the protection frame body is fixedly provided with a magnetic rod frame, the end part of the magnetic rod frame penetrates through the top of the connection frame body and extends to the inside of the connection frame body, a buffer spring is connected between the connection frame body and the protection frame body, a reference rod frame is arranged below the magnetic rod frame, the reference rod frame is limited and slides in a plurality of connection frames, a plurality of magnetic panels are fixedly arranged on the reference rod frame, and the magnetic panels are positioned on the movement track of the magnetic rod frame.

Preferably, the protection support body both sides are provided with installs the support body additional, just install the support body additional fixed mounting on the top fossil fragments, the connection support body both sides still are provided with the mount body, mount body fixed mounting is on horizontal stiffening beam, be connected with the spring body between mount body and the install the support body additional, pass through bolt fixed connection between mount body and the install the support body additional.

Preferably, the inside protruding cavity that is provided with of mount body, just install the support body bottom additional and install the extension support body, just extend support body tip and run through the support body outer wall and extend to protruding die cavity in, just extend support body tip fixed mounting has the enhancement frame, the inside symmetry of enhancement frame installs the block that hinders, hinder the block tip and be located the enhancement frame outside, and with protruding die cavity inner wall contact, hinder and be connected with compression spring between block and the enhancement frame inner wall.

And one end of the clamping block body, which is far away from the reset spring, is provided with a plurality of rolling balls.

Compared with the prior art, the invention has the beneficial effects that:

According to the invention, the clamping plate frame is limited by the clamping block body, so that the purpose of preliminary limiting the top keel is realized, on one hand, the mounting strength of the top keel is enhanced, and on the other hand, the top keel is preliminarily limited, so that subsequent workers can perform refastening work on the top keel by mounting the reinforcing bolts, thereby effectively improving the working efficiency, simultaneously, under the action of the first support frame body, the second support frame body and the reinforcing piece, the bearing strength of the top keel can be effectively enhanced, the bending condition of the top keel is effectively avoided, and under the action of the magnetic rod frame, the repulsive acting force is applied to the magnetic panel, the directional movement of the reference rod frame can be controlled, so that residents can quickly know the bending degree of the top keel.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present invention;

FIG. 2 is a schematic diagram of the structure of the present invention;

FIG. 3 is a schematic view of a roof structure of the present invention;

FIG. 4 is a schematic view of the structure of the connection part of the top joist according to the present invention;

FIG. 5 is a schematic view showing the separation of the clamping plate frame and the clamping frame structure of the present invention;

FIG. 6 is a schematic view of a clamping frame structure according to the present invention;

FIG. 7 is a schematic diagram of a limiting groove structure according to the present invention;

FIG. 8 is a schematic view of the top keel structure of the invention;

FIG. 9 is a schematic view of the structure of the protection frame and the connection frame of the present invention;

FIG. 10 is a schematic view of the structure of the mounting frame and the mounting frame of the present invention;

FIG. 11 is a schematic view of the mounting bracket and the partial cut-away structure of the mounting bracket of the present invention;

FIG. 12 is a schematic view of the internal structure of a convex cavity of the present invention;

fig. 13 is a schematic view of the structure of the guide plate body of the present invention.

In the figure: 1. house joist beams; 2. truss girder; 3. a vertical column; 4. a transverse upright; 41. clamping the frame; 411. a limit frame; 412. a clamping block; 413. a telescopic shaft body; 414. a limit groove body; 415. a sloped descent region; 416. a clamping area; 417. tilting the rising area; 418. a guide plate body; 419. slotting; 410. a rolling sphere; 42. a slider; 421. l-shaped plate frame; 422. a guide shaft body; 423. a spring member; 43. a return spring; 5. a top keel; 51. a protective frame body; 52. a magnetic rod rack; 53. a buffer spring; 54. adding a frame body; 55. extending the frame body; 56. a reinforcing frame; 57. a blocking mass; 58. a compression spring; 6. a clamping plate frame; 61. a clamping groove; 7. a first support frame body; 8. a second support frame body; 81. a reinforcing frame; 9. a transverse stiffening beam; 91. the connecting frame body; 92. a fixing frame body; 93. a spring body; 94. a convex chamber; 10. a reference bar frame; 101. a magnetic panel; 11. roof side panels; 12. roof end plates.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

Referring to fig. 1-13, the present invention provides a technical solution: the invention provides an assembled roof structure, which is correspondingly improved aiming at the technical problems in the background technology, and comprises a house keel beam 1, a truss beam 2 fixedly arranged on the house keel beam 1, a plurality of vertical columns 3 fixedly arranged on the truss beam 2, a transverse column 4 connected between the tops of the plurality of vertical columns 3, a top keel 5 arranged between the transverse column 4 and the truss beam 2, further explaining that the top keel 5 is used for supporting and installing a roof side plate 11, roof end plates 12 are arranged between the two ends of the transverse column 4 and the house keel beam 1, namely, as shown in figure 1, two ends of the top keel 5 are fixedly provided with a clamping plate frame 6, two sides of the clamping plate frame 6 are provided with a plurality of clamping grooves 61, a plurality of clamping frames 41 are fixedly arranged on the transverse column 4, two sides of the clamping frames 41 are fixedly provided with a plurality of limiting frames 411, each of the limiting frames 411 is internally provided with a clamping block body 412, the clamping block bodies 412 correspond to the clamping grooves 61, two sides of each clamping block body 412 are fixedly provided with telescopic shaft bodies 413, the inner wall of each limiting frame 411 is provided with a limiting groove body 414, further description is given that each clamping block body 412 is positioned on the motion track of each clamping plate frame 6, one end of each clamping block body 412 far away from the corresponding restoring spring 43 is provided with a plurality of rolling balls 410, the end parts of each telescopic shaft body 413 slide in the corresponding limiting groove body 414 in a limiting manner, further description is given that each limiting groove body 414 comprises an inclined descending region 415, a clamping region 416 communicated with the end part of each inclined descending region 415, an inclined ascending region 417 communicated with the clamping region 416 and the other end of each inclined descending region 415, and a plurality of guide plate bodies 418, wherein one sides of the guide plate bodies 418 are inclined planes, and the other sides of the guide plate bodies 418 are right-angle planes, as shown in combination with fig. 7, the first guide plate 418 is fixedly installed at the tail end of the inclined descending region 415, namely, at the intersection with the clamping region 416, the inclined surface of the guide plate 418 is positioned in the inclined descending region 415, and the right-angle surface is positioned in the clamping region 416; the second guide plate 418 is mounted on the clamping area 416, the right-angle surface of the guide plate 418 is located at the intersection of the clamping area 416 and the inclined ascending area 417, and the other side is an inclined surface; the third guide plate body 418 is installed at the intersection of the inclined descending region 415 and the inclined ascending region 417, the inclined surface of the guide plate body 418 is located in the inclined ascending region 417, the right-angle surface is located in the inclined descending region 415, the sliding part 42 is arranged in the limiting frame 411, the sliding part 42 comprises an L-shaped plate frame 421 arranged in the limiting frame 411, grooves 419 are formed in the inner walls of two sides of the limiting frame 411, two sides of the L-shaped plate frame 421 are in limiting sliding in the grooves 419, a guide shaft body 422 is fixedly installed on the L-shaped plate frame 421, a clamping block 412 is in limiting sliding on the guide shaft body 422, the L-shaped plate frame 421 is connected with the clamping block 412 through a reset spring 43, and a spring part 423 is connected between the bottom of the limiting frame 411 and the L-shaped plate frame 421;

Referring to fig. 4 to 7, in the process of installing the top keel 5, the clamping plate frame 6 at the end of the top keel 5 is firstly placed in the clamping frame 41, in the placing process, the clamping plate frame 6 applies a force to the clamping block 412 in the limiting frame 411 to enable the clamping block 412 to descend, in the descending process, the clamping block 412 drives the L-shaped plate frame 421 to synchronously descend under the action of the guide shaft body 422, namely, the L-shaped plate frame 421 performs a directional descending action along the track of the slot 419, in the descending process, the L-shaped plate frame 421 compresses the spring member 423, meanwhile, under the action of the guide plate frame (the guide plate frame installed at the intersection of the inclined descending region 415 and the inclined ascending region 417), the telescopic shaft bodies 413 at two sides of the clamping block 412 move along the inclined descending track, namely, the clamping block body 412 contracts towards the L-shaped plate frame 421 at the moment, when the telescopic shaft body 413 moves to the clamping area 416, the clamping block body 412 is not located on the moving track of the clamping plate frame 6, when the clamping groove 61 on the clamping plate frame 6 descends to the position corresponding to the clamping block body 412 (namely, the bottom of the clamping plate body is also contacted with the inner wall of the bottom of the clamping frame 41), the clamping block body 412 enters into the clamping groove 61 under the action of the return spring 43, and the telescopic shaft body 413 passes through the second guide plate frame (i.e. the guide plate frame installed in the clamping area 416) as shown in fig. 7, meanwhile, when the telescopic shaft body 413 is located at the end of the clamping area 416, the telescopic shaft body 413 is blocked by the inner wall of the clamping area 416, the staff releases hands, the L-shaped plate frame 421 has upward movement trend under the action of the spring 423, but the telescopic shaft body 413 is blocked by the inner wall of the clamping area 416, furthermore, the L-shaped plate frame 421 and the clamping block 412 are fixed at this position, if the position is to be contacted, the worker only needs to pull one end of the clamping block 412, so that the end of the telescopic shaft body 413 leaves from the end of the round trip area, when the worker pulls the blocked position, the clamping plate frame 6 is released, the L-shaped plate frame 421 rises under the action of the spring member 423, the telescopic shaft bodies 413 at two sides of the clamping block 412 enter the inclined rising area 417, further explaining that the inclined rising area 417 is close to one end of the clamping area 416, the opening of which is larger than the opening of the other end, by the design, on one hand, the worker can conveniently install the top keel 5, the top keel 5 is primarily fixed through the components, then the reinforcing bolt is installed to re-fix the top keel 5, on the other hand, the installation strength of the top keel 5 can be effectively ensured by the design, and if the bolt is loose, the clamping block 412 still can play a role of temporarily reinforcing the clamping plate frame 6 in the clamping groove 61.

Further, when the top keel 5 is subjected to a certain load for a long time, the top keel 5 is easy to bend, in general, two ends of the top keel 5 are limited, and then a bending state is easy to occur in a middle area, if the bending state occurs in the top keel 5 on a roof, a resident can hardly perceive, in order to accurately know whether the bending state occurs in the top keel 5 playing a supporting role, the invention is designed in such a way that a support frame body I7 is fixedly connected between the top keel 5 and a vertical upright post 3, a support frame body II 8 is fixedly connected between the top keel 5 and a truss girder 2, a parallel state is formed between the support frame body I7 and the support frame body II 8, a reinforcing frame 81 is fixedly connected between the support frame body II 8 and the truss girder 2, the support frame body I7 and the support frame body II 8 play a reinforcing role on the support of the top keel 5, a transverse stiffening beam 9 is fixedly connected between the first support frame 7 and the second support frame 8, a connecting frame 91 is fixedly arranged on the transverse stiffening beam 9, a protecting frame 51 is fixedly arranged on the top keel 5, the protecting frame 51 is arranged in the middle of the top keel 5, the protecting frame 51 and the connecting frame 91 are fixedly connected through bolts, the middle of the top keel 5 is further reinforced through the connecting frame 91, the probability of buckling the top keel 5 is reduced, a magnetic rod frame 52 is fixedly arranged at the bottom of the protecting frame 51, the end part of the magnetic rod frame 52 penetrates through the top of the connecting frame 91 and extends into the inside of the connecting frame 91, a buffer spring 53 is connected between the connecting frame 91 and the protecting frame 51, a reference rod frame 10 is arranged below the magnetic rod frame 52, the reference rod frame 10 is in limited sliding in the connecting frames 91, a plurality of magnetic panels 101 are fixedly arranged on the reference rod frame 10, the magnetic panel 101 is located on the motion track of the magnetic rod frame 52, in the initial state, the magnetic rod frame 52 is located above the magnetic panel 101, when the middle part of the top keel 5 is bent, the magnetic rod frame 52 descends under the action of the magnetic rod frame 52 and descends to the corresponding position of the magnetic panel 101, the magnetic rod frame 52 generates repulsive force on the magnetic panel 101 so as to control the reference rod frame 10 to move towards the roof end plate 12, further, an opening can be formed in the roof end plate 12 so that the end part of the reference rod frame 10 is located in the opening, and a corresponding rubber sealing ring is required to be installed in the end part area of the reference rod frame 10 so as to play a sealing role;

If the top keel 5 is subjected to a certain load for a long time and a bending condition occurs, the protection frame body 51 on the top keel 5 is connected with the connection frame body 91 through bolts, so that the protection frame body 51 applies an acting force to the connection frame body 91 along with the bending of the top keel 5, in the process, the return spring 43 also plays a role in buffering to reduce the bending degree, the magnetic rod frame 52 at the bottom of the protection frame body 51 descends along with the bending, namely, the magnetic rod frame 52 moves from the upper part of the magnetic panel 101 to the corresponding part of the magnetic panel 101, the magnetic panel 101 receives the repulsive force of the magnetic rod frame 52 so as to drive the reference rod frame 10 to move towards the roof end plate 12, namely, the end part of the reference rod frame 10 is positioned outside (exposed to the external environment), so that a resident can observe that the bending degree of the top keel 5 is larger (the reference rod frame 10 is provided with a plurality of magnetic panels 101, and each top keel 5 corresponds to one magnetic rod frame 52), and after the bending condition of the top keel 5 occurs, the resident can quickly understand the bending degree of the top keel 5;

Further, generally, the fabricated roof is made of steel structure, but the steel structure has elasticity in a certain stress range, so when the roof keel 5 is bent, it will recover to the original shape after external force is removed, but in the area where part of rain and snow are frequent, when the roof is frozen by rainwater and snow, the roof keel 5 needs to bear a certain weight, and is easy to generate bending condition, when the frozen rainwater and snow fall, it will recover to the original shape, but in rainy and snowy weather, the roof keel 5 will repeatedly generate repeated bending recovery condition, which is easy to cause fatigue fracture condition of the steel structure, and the connecting node will be more easy to loose, in order to avoid such condition, the invention designs that the added frame body 54 is arranged at two sides of the protection frame body 51, the additional frame body 54 is fixedly arranged on the top keel 5, wherein the installation position of the additional frame body 54 is close to the protection frame body 51, the two sides of the connection frame body 91 are also provided with fixing frame bodies 92, the fixing frame bodies 92 are fixedly arranged on the transverse stiffening beams 9, a spring body 93 is connected between the fixing frame bodies 92 and the additional frame body 54, the fixing frame bodies 92 and the additional frame body 54 are fixedly connected through bolts, a convex cavity 94 is arranged in the fixing frame bodies 92, the bottom of the additional frame body 54 is provided with an extension frame body 55, the end part of the extension frame body 55 penetrates through the outer wall of the fixing frame body 92 and extends into the convex cavity 94, the end part of the extension frame body 55 is fixedly provided with a reinforcing frame 56, a blocking block 57 is symmetrically arranged in the reinforcing frame 56, the end part of the blocking block 57 is positioned outside the reinforcing frame 56 and is contacted with the inner wall of the convex cavity 94, a compression spring 58 is connected between the blocking block 57 and the inner wall of the reinforcing frame 56.

Specifically, when the top keel 5 is in a bending state, the top keel 5 is correspondingly provided with the frame body 54 for position adjustment, namely, the extending frame body 55 at the bottom of the top keel 54 can drive the reinforcing frame 56 to perform position adjustment in the convex cavity 94, and in combination with the illustration of fig. 12, in an initial state, the reinforcing frame 56 is positioned above the convex cavity 94, the compression spring 58 is in a compression state, when the bending degree of the top keel 5 is large, namely, the moving distance of the extending frame body 55 is relatively far, and the reinforcing frame 56 is positioned relatively close to the bottom of the convex cavity 94, the blocking block 57 in the reinforcing frame 56 can move outwards under the action of the compression spring 58, so that if the top keel 5 is restored, the inner wall of the convex cavity 94 can be effectively prevented from being restored, and simultaneously can be prevented from being continuously bent, thereby effectively reducing the fatigue fracture state of the top keel 5.

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation 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 may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides an assembled roof structure, its characterized in that includes house fossil fragments roof beam (1), truss roof beam (2) on house fossil fragments roof beam (1) of fixed mounting, just a plurality of vertical stand (3) of fixed mounting on truss roof beam (2), just a plurality of still be connected with horizontal stand (4) between vertical stand (3) top, be provided with between horizontal stand (4) and truss roof beam (2) top fossil fragments (5), top fossil fragments (5) both ends fixed mounting has joint grillage (6), just joint grillage (6) both sides all are provided with a plurality of draw-in grooves (61), fixed mounting has a plurality of joint frame (41) on horizontal stand (4), wherein joint frame (41) both sides fixed mounting has a plurality of spacing frame (411), every spacing frame (411) are inside all to be provided with joint block (412), joint block (412) correspond with draw-in groove (61), telescopic shaft body (413) both sides fixed mounting have joint grillage (414) and be provided with spacing body (42) in spacing body (42), and a return spring (43) is connected between the sliding piece (42) and the clamping block body (412).

2. A fabricated roof structure according to claim 1, wherein: the limiting groove body (414) comprises an inclined descending region (415), a clamping region (416) communicated with the end of the inclined descending region (415), an inclined ascending region (417) communicated with the clamping region (416) and the other end of the inclined descending region (415), and a plurality of guide plate bodies (418).

3. A fabricated roof structure according to claim 2, wherein: the sliding piece (42) comprises an L-shaped plate frame (421) arranged inside a limiting frame (411), grooves (419) are formed in the inner walls of two sides of the limiting frame (411), two sides of the L-shaped plate frame (421) slide in the grooves (419) in a limiting mode, a guide shaft body (422) is fixedly mounted on the L-shaped plate frame (421), a clamping block body (412) slides in a limiting mode on the guide shaft body (422), the L-shaped plate frame (421) is connected with the clamping block body (412) through a reset spring (43), and a spring piece (423) is connected between the bottom of the limiting frame (411) and the L-shaped plate frame (421).

4. A fabricated roof structure according to claim 1, wherein: the vertical column type vertical girder comprises a top keel (5) and a vertical column (3), wherein a first supporting frame body (7) is fixedly connected between the top keel (5) and the vertical column (3), a second supporting frame body (8) is fixedly connected between the top keel (5) and the girder (2), the first supporting frame body (7) and the second supporting frame body (8) are in a parallel state, and a reinforcing frame (81) is fixedly connected between the second supporting frame body (8) and the girder (2).

5. A fabricated roof structure according to claim 4, wherein: the novel high-strength concrete pile is characterized in that a transverse stiffening beam (9) is fixedly connected between the first support frame body (7) and the second support frame body (8), a connecting frame body (91) is fixedly installed on the transverse stiffening beam (9), a protection frame body (51) is fixedly installed on the top keel (5), the protection frame body (51) is installed in the middle of the top keel (5), and the protection frame body (51) is fixedly connected with the connecting frame body (91) through bolts.

6. A fabricated roof structure according to claim 5, wherein: the utility model discloses a magnetic pole frame, including protection support body (51), magnetic pole frame (52) are fixed mounting in protection support body (51) bottom, just magnetic pole frame (52) tip through connection support body (91) top and extend to its inside, be connected with buffer spring (53) between connection support body (91) and protection support body (51), magnetic pole frame (52) below is provided with reference pole frame (10), just reference pole frame (10) are spacing in a plurality of connection support body (91) to slide, fixed mounting has a plurality of magnetic panels (101) on reference pole frame (10), just magnetic panel (101) are located the motion trail of magnetic pole frame (52).

7. A fabricated roof structure according to claim 6, wherein: the protection support body (51) both sides are provided with installs support body (54) additional, just install support body (54) additional on top fossil fragments (5) fixedly, connection support body (91) both sides still are provided with mount body (92), mount body (92) fixed mounting is on horizontal stiffening beam (9), be connected with spring body (93) between mount body (92) and install support body (54) additional, pass through bolt fixed connection between mount body (92) and install support body (54) additional.

8. A fabricated roof structure according to claim 7, wherein: the inside protruding cavity (94) that is provided with of mount body (92), just install extension support body (55) in addition support body (54) bottom, just extension support body (55) tip runs through mount body (92) outer wall and extends to in protruding cavity (94), just extension support body (55) tip fixed mounting has reinforcing frame (56), reinforcing frame (56) internally symmetrical installs and hinder block (57), hinder block (57) tip is located reinforcing frame (56) outside to with protruding cavity (94) inner wall contact, hinder block (57) and be connected with compression spring (58) between reinforcing frame (56) inner wall.

9. A fabricated roof structure according to claim 1, wherein: a plurality of rolling balls (410) are arranged at one end of the clamping block (412) far away from the return spring (43).