TWM531500U - Preassembling steel bar structure and steel bar structure thereof - Google Patents

Description

Pre-grouped steel structure and its steel structure

This creation is about a steel structure, especially a pre-grouped steel structure and a steel structure using the same.

It is known that during the construction of the beam and column of the building, it is entirely up to the constructor to manually carry out the beam-column reinforcement and the beam-column joint at the site of the construction site, thus highlighting that the constructor must have sufficient technical ability and experience. It is very important, and not generally untrained.

Therefore, this traditional beam-column construction method is not only difficult to construct, long in construction period, but also high in manpower requirements. In particular, due to human error, the construction results do not meet the design requirements, such as excessive configuration of the main ribs, insufficient length of the hoop hooks or insufficient angle, insufficient number of stirrups or tendons, or incorrect position. If the reinforcement and stiffening measures of the joints between the beams and columns are not correct, the shear strength and the bearing strength are not good, so there is a problem that the construction quality is difficult to be stably controlled, so that the beam-column structure has hidden seismic capacity and is easy to collapse and break. Dangerous security concerns such as destruction.

Therefore, there is a need for a steel structure and the use of the structure for building a building to solve the problems caused by conventional techniques.

In view of the above-mentioned problems of the prior art, the present invention provides a pre-assembled steel structure for being installed in a modular manner on a construction site to construct a building, and the pre-assembled steel structure is pre-structured. Forming the steel bars first, so that the construction site can be quickly constructed to improve the building efficiency and accuracy of the building, thereby improving the structural safety of the building.

According to one aspect of the present work, a pre-assembled steel structure is proposed for modular installation on a construction site to construct a building. The pre-group reinforcement structure comprises: a main rib group and a stirrup group. The main rib group contains a plurality of main ribs. The main ribs are arranged in an array at intervals, and each of the two main ribs is a first joint portion and a second joint portion. At least one of the first joint portion and the second joint portion is for mounting a splicer. The stirrup set includes a plurality of stirrups. The stirrups are spaced apart from each other to frame the primary ribs, and each of the stirrups includes a rib. The rib body includes a plurality of reinforcing steel segments and a plurality of bending portions connected between adjacent bending portions of the bending portions, and the rib body is an integrally formed structure. The pre-assembled steel structure is used to continually join a steel structure to form part of the structure of the building.

In an embodiment of the pre-assembled reinforcing bar structure of the present invention, the pre-assembled reinforcing bar structure is continuated with the reinforcing bar structure by a plurality of reinforcing members, and the reinforcing bar structure is another pre-assembled reinforcing bar structure or a connection Use steel structure.

In an embodiment of the pre-assembled reinforcing bar structure of the present invention, the first engaging portion and the second engaging portion respectively have a threaded end, and the splicer comprises a threaded sleeve and a pressing ring, the screw sleeve The first engaging portion adjacent to each other and the threaded end of the second engaging portion are respectively screwed, and the pressing ring is sleeved on the first engaging portion to press the screw sleeve.

In an embodiment of the pre-assembled steel structure of the present invention, the stirrup assembly further includes a plurality of tie bars, each of the stirrups being staggered with at least one of the tie bars.

In an embodiment of the pre-assembled reinforcing bar structure of the present invention, the first engaging portion of each of the main ribs between the main ribs and the second engaging portion are separated by a fixed distance.

In the above embodiment of the pre-assembled reinforcing bar structure of the present invention, the pre-assembled reinforcing bar structure may be a post or a beam.

According to another aspect of the present invention, a steel structure is proposed, comprising: a first pre-group reinforcement structure and a second pre-group reinforcement structure. The first pre-group reinforcement structure comprises: a first main rib group and a first rib group. The first main rib group includes a plurality of first main ribs, and the first main ribs are arranged in an array. The two sides of the first main ribs are respectively a first joint portion and a second joint portion. At least one of a joint portion and the second joint portion is for mounting a splicer. The first stirrup set includes a plurality of first stirrups, and the first stirrups are spaced apart from each other to surround the first main tendons, and each of the first stirrups includes a first tendon, the first A rib includes a plurality of reinforcing segments and a plurality of bent portions connected between adjacent bent portions of the bent portions. The second pre-group reinforcement structure comprises: a second main rib group and a second rib group. The second main rib group includes a plurality of second main ribs, and the second main ribs are arranged in an array. The two sides of the second main ribs are respectively a first joint portion and a second joint portion. At least one of a joint portion and the second joint portion is for mounting a splicer. The second stirrup set includes a plurality of second stirrups, the second stirrups are spaced apart from each other to surround the second main tendons, and each of the second stirrups includes a second tendon, the first The second rib body comprises a plurality of reinforcing steel segments and a plurality of bending portions connected between the adjacent bending portions of the bending portions. The first pre-group reinforcement structure and the second pre-group reinforcement structure are disposed perpendicular to each other, and the first main reinforcement of the first pre-group reinforcement structure and the second main reinforcement of the second pre-group reinforcement structure are Fixed by overlapping each other.

In an embodiment of the reinforcing steel structure of the present invention, the first main ribs of the first pre-group reinforcing bar structure comprise a plurality of outer layer main ribs and a plurality of inner layer main ribs, and the second pre-group reinforcing bar structure The second main rib comprises a plurality of upper ribs and a plurality of lower ribs, and the main ribs of the upper girders and the main ribs of the lower girders are threaded between the main ribs of the plurality of inner pillars.

In an embodiment of the reinforced steel structure of the present invention, the upper ribs of the upper beam and the ends of the main ribs of the lower beams are connected with a lap joint for the first portion of the first pre-group reinforced structure A main rib is overlapped and fixed.

According to the above, the pre-grouped steel structure and the steel structure system of the present invention form a pre-grouped steel structure by pre-bonding the plurality of main ribs and the hoops, and connecting the main ribs with the splicer to form a plurality of pre-grouped steel structures. The convergence. Therefore, the pre-assembled steel structure can be combined into a beam or a column by the manufacturer to increase the convenience of the production combination, and only a whole set of lifting can be quickly assembled during on-site construction, thereby enabling rapid construction at the site. Improve the building efficiency and accuracy of buildings, thereby improving the structural safety of buildings.

1, 1A‧‧‧ pre-group reinforcement structure

8‧‧‧Rebar structure

9A, 9B‧‧‧ lap structure

10‧‧‧ main rib group

11‧‧‧ main tendons

12‧‧‧First joint

121‧‧‧Threaded end

13‧‧‧Second joint

131‧‧‧Threaded end

20‧‧‧Hoop group

21‧‧‧ stirrups

22‧‧‧

221‧‧ ‧ steel section

222‧‧‧Bend

23‧‧‧

30‧‧‧Continuous connector

31‧‧‧Spiral casing

32‧‧‧Forcing ring

91‧‧‧Rebar

92‧‧‧ stirrups

95‧‧‧T head anchoring structure

100‧‧‧First pre-group reinforcement structure

101‧‧‧ outer pillar main reinforcement

102‧‧‧ inner pillar main reinforcement

200‧‧‧Second pre-group reinforcement structure

201‧‧‧Upper beam main reinforcement

202‧‧‧lower beam main reinforcement

A1‧‧‧Rectangular area

A2‧‧‧ overlapping area

SB‧‧‧ Floor

1 is a schematic view showing the appearance of an embodiment of a pre-grouped steel structure according to the present invention.

2A is a schematic view showing the appearance of another embodiment of the pre-assembled steel structure according to the present invention.

2B is a schematic view showing the appearance of an embodiment of a T-head anchoring structure.

Fig. 3 is a schematic view showing the appearance of the pre-assembled steel structure of Figs. 1 and 2A after joining.

Figure 4 is a schematic illustration of one embodiment of a pre-assembled steel structure in accordance with the present teachings.

Figure 5 is a schematic view showing the assembly of the embodiment of the pre-grouped steel structure of Figure 4.

Figure 6 is a schematic view of the assembly of one embodiment of the splicer according to the present invention.

Figure 7 is a cross-sectional view of one embodiment of a pre-assembled steel structure in accordance with the present teachings.

FIG. 8 is a schematic view showing the appearance of one embodiment of two pre-assembled steel structures according to the present invention.

The present invention provides a pre-assembled steel structure for modular installation on a construction site to construct a building, and the pre-assembled steel structure is formed by pre-assembling steel bars, thereby enabling rapid construction at the construction site to enhance the construction. The construction efficiency and accuracy of the object improve the structural safety of the building. In addition, the pre-assembled steel structure utilizes a pre-assembly method to complete the beam-column reinforcement structure in a standardized and automated process in the factory, eliminating the need for on-site artificial steel bar lashing. After the process, the erection, assembly and grouting of the beam and column steel structure are carried out on site to help greatly improve the construction quality, reduce the construction difficulty, shorten the construction period, and reduce the construction cost.

The present invention further provides a steel structure comprising: a first pre-group reinforcement structure and a second pre-group reinforcement structure. The first pre-group reinforcing bar structure and the second pre-group reinforcing bar structure are perpendicular to each other, and the first main ribs of the first pre-group reinforcing bar structure and the second main ribs of the second pre-group reinforcing bar structure are mutually Connected and fixed. The first and second pre-group reinforcing steel structures may be columns and beams, respectively.

The following is a plurality of embodiments of pre-assembled reinforcing bars and reinforcing steel structures to illustrate various embodiments based on the present creation. However, the form and arrangement of the pre-assembled steel structure and the reinforcing steel structure of the present invention are not limited to the following exemplary examples, and may be other modifications or modifications. In addition, in the following embodiments, when the pre-group reinforcement structure is realized as a beam, the main reinforcement is, for example, for being perpendicular to the cylinder or parallel to the surface; when the pre-group reinforcement structure is realized as a column, the main reinforcement is used, for example. It is perpendicular to the surface; since this is well known to those skilled in the art, it will not be described again.

1 is a schematic view showing the appearance of an embodiment of a pre-grouped steel structure according to the present invention. As shown in Fig. 1, the pre-assembled steel structure 1 is used to be installed in a modular manner on a construction site to construct a building. In the present embodiment, the pre-grouped reinforcing structure 1 is realized as a column. The pre-assembled steel structure 1 includes a main rib group 10 and a stirrup group 20 . The main rib group 10 includes a plurality of main ribs 11. The main ribs 11 are arranged in an array, and at least one of the two sides of each of the main ribs 11 is used to mount the splicer 30. The stirrup set 20 includes a plurality of stirrups 21. The stirrups 21 are spaced apart from each other to surround the main ribs 11. The stirrup 21 is an integrally formed structure, and may be tied with a tie. The pre-assembled steel structure 1 is used to continually connect with a steel structure 9 to become part of the structure of the building.

In one embodiment, the pre-assembled rebar structure 1 is contiguous with the rebar structure 8 by a plurality of splicers 30. The reinforcing bar structure 8 can be another pre-assembled reinforcing bar structure 1 or a reinforcing bar structure. As shown in Figure 1, the reinforcing bar structure 8 is exposed above the floor SB for comparison with the pre-group The reinforcing steel structure 1 continues. In addition, the splicer can be joined to the main rib in any manner, which can be engaged with the pre-assembled reinforced structure 1 during factory pre-assembly, or can be joined during construction.

2A is a schematic view showing the appearance of another embodiment of the pre-assembled steel structure according to the present invention. As shown in Fig. 2A, the pre-assembled reinforcing structure 1A is realized as a beam and is used to continue the connection with the overlapping structures 9A, 9B to become part of the structural body of the building. For example, the pre-assembled reinforcing structure 1A is continuated with the overlapping structures 9A, 9B by a plurality of splicers 30 to form a beam structure. The lap joints 9A, 9B are for fixing and overlapping with the main ribs of the column, and include the reinforcing bars 91 and are connected to the pre-assembled reinforcing structure 1A by the splicer 30, and the stirrups 92 can be appropriately tying as needed. . In addition, one end of the reinforcing bar 91 of the overlapping structure 9A, 9B may further have a T-head anchoring structure 95 instead of the anchoring structure of the hook reinforcing bar; as shown in FIG. 2B, it is one of the T-head anchoring structures 95. Embodiments; however, this creation does not limit the anchoring structure. In addition, the lap joint structures 9A, 9B can also be regarded as a reinforcing bar structure for joining. In another embodiment, the plurality of pre-grouped reinforcing structures 1A can be continued to extend the length of the beam and overlap the other columns by the overlapping structures 9A, 9B.

FIG. 3 is a schematic view showing the appearance of the pre-assembled steel structure of the present invention after being joined according to FIG. 1 and FIG. 2A. As shown in Fig. 3, the two pre-group reinforcing bars 1 (i.e., the columns) used as the columns and the pre-assembled reinforcing bars 1A used as the beams are fixed by being overlapped with each other and disposed perpendicular to each other. For example, the pre-assembled reinforcing structure 1A is overlapped with other columns by the overlapping structures 9A, 9B.

Referring to Figures 4 through 7, an embodiment of a pre-assembled rebar structure includes a main rib set 10 and a stirrup set 20 for positioning the main rib set ferrule.

The main rib group 10 is provided with a plurality of main ribs 11, and the main ribs 11 are arranged in an array to form a cubic cylinder outline. Although the drawings are arranged in a 4x4 array arrangement, the number is not limited thereto, and the adjustment is performed according to actual needs. Each of the two sides of the main rib 11 is a first joint portion 12 and a second joint portion 13. The end of the first joint portion 12 is a threaded end 121, such as an external thread, and the end of the second joint portion 13 is A threaded end 131, such as an external thread.

The stirrup group 20 is provided with a plurality of stirrups 21, each of the stirrups 21 includes a rib 22 and a rib 23, and the ribs 23 are alternately disposed in the rib 22, and the rib and the rib The reinforcing bar is a bent and formed steel structure, wherein the reinforcing body 22 has a plurality of reinforcing steel segments 221 and a plurality of bending portions 222, the bent portion 222 is a curved columnar structure, and the reinforcing steel segment 221 is a straight cylindrical structure. And connecting between the bent portions 222 to form a plurality of rectangular regions A1 and a plurality of overlapping overlapping regions A2, and the bent portions 222 and the reinforcing steel segments 221 are bent at a nearly 90 degree to each other to form In the field structure or other structure, at least one main rib 11 is disposed in each of the rectangular area A1 and the overlapping area A2. In addition, the ends of the stirrups or the tendons have an anchoring structure, which is well known to those skilled in the art and will not be described again.

In the pre-assembled steel structure, the respective stirrups 21 of the stirrup group 20 are sequentially encased around the main tendons 11 of the main tendon group 10, and a plurality of stirrups 21 are arranged around the main tendons 11 in a spaced arrangement, and each The main ribs 11 and the respective stirrups 21 are in close contact with each other, and since the stirrups 21 are integrally bent and formed, the respective stirrups 21 of the stirrup group 20 and the main tendons 11 of the main tendon group 10 are joined to form a pre-group reinforcement structure. The first joint portion 12 and the second joint portion 13 between the main ribs 11 are separated from each other by a fixed distance. The number of the stirrups group 20 used in the pre-assembled steel structure is not limited, and is adjusted according to actual conditions.

In addition, for example, the pre-assembled steel structure is completed at the factory using a pre-assembly method. The steps of the pre-assembly method are as follows: (1) Using the stirrup-like plate table, the outer stirrups and the tendons are bundled into one unit or the closed stirrups (that is, the integrally formed stirrups), wherein the main tendons can be processed and continued. The connector is friction welded. (2) Using the work frame to discharge the upper main rib, the hoop rib unit is hung on the upper main rib. The stirrup unit is hung on the upper main rib. (3) Gradually position the stirrups according to the spacing model, and erect the steel plate fixing plate (upper layer). (4) The stirrup unit is discharged and positioned according to the design interval, and the beam-column joint section and the continuous joint section are pre-set and fixed. (5) Insert the other main ribs in sequence. (6) Set up the upper end model and lock the lifting reinforcement. (7) Fix the main rib fixing parts. (8) Shake down the work frame, so that the steel cage is lowered on the pallet truck, and the cart is moved to a fixed point for storage. In addition, after the pre-grouped steel structure is inspected, it can be hoisted The number plate, or other means such as tying, hanging, or implanting a wireless identification tag RFID to record its source, number, etc. resume data.

Please refer to FIG. 8 again, the present invention provides a steel structure, which is configured by applying the above-mentioned pre-grouped steel structure, the steel structure system includes a plurality of first pre-group steel structures 100 and joining the first pre-group A plurality of second pre-group reinforcement structures 200 of the reinforcement structure 100, and the first pre-group reinforcement structure 100 and the second pre-group reinforcement structure 200 are arranged perpendicular to each other to construct a column and beam reinforcement structure of the building.

As described above, the first pre-group reinforcement structure 100 and the second pre-group reinforcement structure 200 are both the pre-group reinforcement structure, and the first pre-group reinforcement structure 100 and the second pre-group reinforcement structure 200 are based on the structure of the building. The strength requirement differs between the number of the main ribs 11 and the stirrups 21, and the pitch of the stirrups 21 surrounding the main ribs 11. When the pre-grouped steel structure of the present invention is used for the construction, the first pre-group of steel bars is firstly used. The structure 100 and the second pre-group steel structure 200 are pre-assembled on the ground, and the first pre-group rebar structure 100 and the second pre-group rebar structure 200 each comprise a plurality of pre-group rebar structures, and each pre-group rebar structure is used for connection. A splicer 30 is provided for connecting the first joint portion 12 of the two adjacent main ribs 11 and the second joint portion 13 to form an axial joint.

The splicer 30 includes at least one screw sleeve 31 and a pressing ring 32. Since the first joint portion 12 and the second joint portion 13 between the main ribs 11 are separated by a fixed distance, the two adjacent main ribs 11 are When the first engaging portion 12 and the second engaging portion 13 are close to each other, the pressing ring 32 of the splicer 30 is first sleeved in the threaded end 121 of the first engaging portion 12, and then the screw sleeve 31 is screwed. The threaded end 121 and the threaded end 131, after the threaded sleeve 31 is screwed to the threaded end 121 and the threaded end 131, the tightening ring 32 is used to tighten the threaded sleeve 31, and the first pre-grouped steel structure and the second The pre-assembled steel structure can be connected to form a joint extension by a plurality of first pre-reinforcing structure 100 and a second pre-reinforcing structure 200 by a plurality of splicers 30. However, the type and implementation of the splicer of this creation is not limited by this example. For example, the main rib can also be processed to frictionally weld with the splicer.

As described above, when assembled on the ground, the first pre-group reinforcing bar structure 100 includes a plurality of outer column main bars 101 and a plurality of inner column main bars 102, and the second pre-group reinforcing bar structure 200 includes a plurality of upper beam main bars 201 And a plurality of lower beam main ribs 202, and the outer column main ribs 101 and the inner layer main ribs 102 are fixed by the hoop group 20, and the upper beam main ribs 201 and the lower sill main ribs 202 are passed through the stirrup group The upper frame ribs 201 and the lower layer main ribs 202 are disposed between the inner layer main ribs 102, and the upper ribs 201 and the lower ribs 202 are end-ends of the main ribs 202. a pre-lap joint wall joint having a plurality of lap joints joined and exposed to the wall surface, and the end ribs 201 and the end ribs 202 of the lower slabs are respectively spliced with the slabs The steel bars are connected in series and fixed by the hoop group 20 to complete the pre-lapped wall structure. Further, the upper beam main ribs 201 and the ends of the lower beam main ribs 202 are connected to each other with a lap joint structure (as shown in the figure). 9A or 9B) in 2A, that is, the lap joint structure is not in the stirrup group 20 The frame is fixed to facilitate a plurality of overlapping bars that are connected to the wall.

As described above, after the ground assembly is completed and the lifting operation is sequentially arranged upward, the first pre-group reinforcing steel structure 100 is lifted and connected by the splicer 30 between the floor slabs SB, and then Repeating the foregoing, the upper beam main rib 201 and the plurality of lower layer main ribs 202 are interposed between the plurality of inner layer column main ribs 102, and are joined and fixed to the plurality of overlapping reinforced bars of the wall surface to form the reinforced steel structure of the present invention.

The creation system pre-assembles and fixes the plurality of main ribs 11 and the stirrups 21 to form a pre-group steel structure, and connects the main ribs 11 with a splicer to form a plurality of sets of pre-group steel structures. Therefore, the pre-group steel structure can be The production is combined into a beam or column to increase the convenience of the production combination. On-site construction requires only a complete set of hoisting to be quickly assembled, thereby enabling rapid construction at the site to enhance the building efficiency. Accuracy, which improves the structural safety of buildings. Furthermore, since the stirrup 21 can be integrally bent and formed, in addition to reducing the production cost and the man-hour required for connecting the main rib 11, the bundling force of the stirrup 21 on the main rib 11 can be increased, and the reinforcing structure can be improved. Overall structural strength.

In summary, the content of the present invention has been exemplified by the above embodiments, but the present creation is not limited to only the embodiments. Various changes and modifications may be made in the technical scope of the present invention without departing from the spirit and scope of the present invention; for example, the technical contents exemplified in the foregoing embodiments may be combined or changed. As a new implementation, these implementations are of course considered as one of the contents of this creation. Therefore, the scope of the patent to be protected in this case also includes the scope of the patent application and the scope defined by it.

1‧‧‧Pre-set steel structure

8‧‧‧Rebar structure

10‧‧‧ main rib group

11‧‧‧ main tendons

20‧‧‧Hoop group

21‧‧‧ stirrups

30‧‧‧Continuous connector

SB‧‧‧ Floor

Claims (9)

A pre-assembled steel structure for modular installation on a construction site to construct a building, the pre-assembled steel structure comprising: a main rib group comprising a plurality of main ribs, the main ribs being arranged in an array, the main ribs Each of the two sides is a first joint portion and a second joint portion, at least one of the first joint portion and the second joint portion is used for installing a splicer; and a stirrup set, Included in the plurality of stirrups, the stirrups are spaced apart from each other to frame the main tendons, each of the stirrups includes a tendon comprising a plurality of reinforcing steel segments and a plurality of bent portions, the reinforcing steel segments Connecting between adjacent bending portions of the bending portions, the reinforcing body is an integrally formed structure; wherein the pre-assembled reinforcing steel structure is used for continuing connection with a reinforcing steel structure to become a structural body of the building. portion. The pre-assembled reinforcing bar structure according to claim 1, wherein the pre-assembled reinforcing bar structure is continuous with the reinforcing bar structure by a plurality of splicing structures, and the reinforcing bar structure is another pre-group reinforcing bar structure or a connecting reinforcing bar structure. . The pre-assembled reinforcing bar structure according to claim 2, wherein the first engaging portion and the second engaging portion respectively have a threaded end, the splicer comprising a threaded sleeve and a pressing ring, the threaded sleeve The first engaging portion adjacent to each other and the threaded end of the second engaging portion are respectively screwed, and the pressing ring is sleeved on the first engaging portion to press the screw sleeve. The pre-assembled reinforcing bar structure of claim 1, wherein the stirrup set further comprises a plurality of tie bars, each of the stirrups being staggered with at least one of the tie bars. The pre-assembled reinforcing bar structure of claim 1, wherein the first engaging portion between each of the main ribs and the second engaging portion are separated by a fixed distance. The pre-assembled reinforcing bar structure of any one of claims 1 to 5, wherein the pre-assembled reinforcing bar structure is a column or a beam. A reinforcing steel structure comprising: a first pre-group reinforcing bar structure comprising: a first main rib group comprising a plurality of first main ribs, the first main ribs being arranged in an array, each of the first main ribs The two sides are respectively a first joint portion and a second joint portion, and at least one of the first joint portion and the second joint portion is used for installing a splicer; the first stirrup group includes a plurality of a first stirrup, the first stirrups are spaced apart from each other to surround the first primary ribs, each of the first stirrups comprising a first rib, the first rib comprising a plurality of reinforcing bars and a plurality of bent portions connected between adjacent bent portions of the bent portions; and a second pre-grouped reinforcing bar structure comprising: a second main rib group including a plurality of second portions a main rib, the second main ribs are arranged in an array, and each of the two second ribs has a first joint portion and a second joint portion, and the first joint portion and the second joint portion are at least One is for installing a splicer; the second sling set includes a plurality of second a second rib that is spaced apart from each other to surround the second main ribs, each of the second stirrups comprising a second rib, the second rib comprising a plurality of reinforcing bars and a plurality of bends a folding portion, the reinforcing steel segment is connected between adjacent bending portions of the bending portions; wherein the first pre-group reinforcing steel structure and the second pre-group reinforcing steel structure are perpendicular to each other, and the first pre- The group of reinforcing steel structures and the second pre-group of reinforcing steel structures are fixed by overlapping each other. The reinforcing steel structure according to claim 7, wherein the first main ribs of the first pre-group reinforcing bar structure comprise a plurality of outer layer main ribs and a plurality of inner layer main ribs, and the second pre-group reinforcing bar structure The second main rib comprises a plurality of upper ribs and a plurality of lower ribs, and the main ribs of the upper girders and the main ribs of the lower girders are threaded between the main ribs of the plurality of inner pillars. The reinforced structural body according to claim 8, wherein the upper ribs of the upper beam and the ends of the main ribs of the lower beams are connected to a lap joint, and the lap joint is used for the first portion of the first pre-group reinforced structure A main rib is overlapped and fixed.