CN111962666B - Construction method of building interior structure - Google Patents

Abstract

The invention provides a construction method for the internal structure of a building. The method includes the steps of: (a) arranging a first pre-cast bathroom floor structure at a first height of the first floor of the building structure; (b) arranging a lower short beam on the stairs at a second height of the first floor On one side of the placement area, the second height of the first floor is higher than the first height of the first floor; (c) connecting the first end of the lower precast staircase to the lower short beam (d) providing beams at the first height of the second floor above the first floor to span opposite sides of the building structure; (e) providing the first height at the second floor The upper short beam is on the other side of the stair placement area relative to the side, and the ends of the upper short beam are connected to the cross beam; and (f) the two ends of the upper precast staircase are respectively connected to the The lower short beam and the upper short beam.

Description

Construction method of building interior structure

technical field

The invention relates to a construction method for the internal structure of a building.

Background technique

The rapid construction of high-quality buildings has long been the goal pursued by the construction and construction industry. Among the many construction methods, the precasting method has been successfully used in various construction and construction projects due to its advantages of excellent quality, safe and rapid construction, and economical and reasonable construction costs. The precaster method is used in the precast plant or around the construction site to produce reinforced structures, such as steel cages, with standardized operation procedures and modular molds, construct the formwork and pour concrete, and quickly mass-produce high-precision and high-quality uniform columns Structural components such as body, beam body, plate body, etc. Then, through precise handling management and assembly operations on the construction site, the completed structural components are assembled on the construction site. In this way, the workload on the construction site can be minimized, manpower and construction time can be reduced, and the construction period can be shortened. In addition, this construction method can also reduce or avoid scaffolding construction, greatly improving construction safety.

The conventional precaster method builds up the structure layer by layer. It is necessary to complete the floor structure of the lowest floor first, including all beams, columns, floor slabs, stairs and bathrooms. There is still room for improvement in construction speed to further meet the needs of the industry. In view of this, the development of an external main structure that can quickly build multiple floors, and a structure that can quickly set stairs and bathrooms inside each floor to further speed up the construction speed has been a long-term expectation in the industry.

SUMMARY OF THE INVENTION

The reason is that, in order to achieve the above purpose, an embodiment of the present invention relates to a construction method for an internal structure of a building, comprising the following steps: (a) arranging a first pre-cast toilet at the first height of the first floor of the building structure Floor structure; (b) set the lower short beam on one side of the stair placement area at the second height of the first floor, the second height of the first floor is higher than the first floor of the first floor a height; (c) connecting the ends of the lower precast stairs to the lower short beams; (d) arranging beams at the first height of the second floor above the first floor to span the length of the building structure Opposite two sides; (e) at the first height of the second floor, an upper short beam is arranged on the other side of the stair placement area relative to the side, and the end of the upper short beam is connected to the and (f) connecting the two ends of the upper precast staircase to the lower short beam and the upper short beam respectively.

Another embodiment of the present invention relates to a construction method for an internal structure of a building, comprising the following steps: (a') hoisting a first bathroom unit with a pre-configured wall structure and internal structure to the first floor of the building structure (b') at the second height of the first floor, the lower short beam is set on one side of the stair placement area, and the second height of the first floor is higher than the first floor of the first floor. height; (c') connecting the ends of the lower precast stairs to the lower short beams; (d') placing the beams at the first height of the second floor above the first floor to span the building structure (e') at the first height of the second floor, set the upper short beam on the other side of the stair placement area relative to the side, and the end of the upper short beam connecting the cross beams; and (f') connecting the two ends of the upper precast staircase to the lower short beams and the upper short beams, respectively.

Another embodiment of the present invention relates to a construction method for an interior structure of a building, comprising the steps of: (a") arranging a first precast bathroom floor structure at a first height of a first floor of the building structure, and A pillar is arranged in the building structure; (b") a lower short beam is arranged at the second height of the first floor on the side of the stair placement area, and the second height of the first floor is higher than the second height of the first floor; the first height of the first floor; (c") connecting the end of the lower precast staircase to the lower short beam; (e") setting the upper short beam to the staircase at the first height of the second floor On the other side of the placement area relative to the side, the ends of the upper short beams are connected to the pillars; and (f") the two ends of the upper precast stairs are respectively connected to the lower short beams and the Upper short beam.

Description of drawings

FIG. 1A is a schematic structural diagram showing a building structure according to the present invention.

FIG. 1B is a partial enlarged view of FIG. 1A .

FIG. 2A is a plan view of the present invention showing that the first floor of the building structure is not equipped with a stair placement area and a bathroom toilet placement area.

2B and 2C are plan layout views showing that the first floor of the building structure includes a stair placement area and a bathroom placement area according to the present invention.

2D and 2E are plan layout views showing the second floor and higher floors of the building structure including the stair placement area and the bathroom and toilet placement area according to the present invention.

3A to 3H are schematic structural diagrams showing different stages of constructing an interior structure of a building according to the first embodiment of the present invention.

4A to 4C are schematic diagrams of a bonding process for fixing a cross beam to a second joint member of a precast beam-column structure according to an embodiment of the present invention.

5A to 5C are schematic diagrams of the bonding process of fixing the lower short beam to the first joint member of the precast beam-column structure according to an embodiment of the present invention.

6A to 6D are schematic diagrams of a bonding process for fixing the cross beam to the second joint member of the pre-cast beam-column structure according to another embodiment of the present invention.

FIGS. 7A to 7C are schematic diagrams of the combination process of fixing the lower precast staircase to the lower short beam and the upper short beam according to an embodiment of the present invention.

FIG. 8 is a schematic structural diagram of the present invention showing that the second precast bathroom toilet floor structure is disposed in the bathroom toilet placement area.

9A to 9F are schematic structural diagrams at different stages of constructing an internal structure of a building according to the second embodiment of the present invention.

FIG. 10A is a plan view of another embodiment of the present invention showing that the building structure is not provided with a stair placement area and a bathroom toilet placement area.

10B and 10C are another embodiment of the present invention, showing that the building structure includes a stair placement area and a bathroom and toilet placement area.

11A to 11G are schematic structural diagrams at different stages of constructing an internal structure of a building according to the third embodiment of the present invention.

FIG. 12 is a schematic structural diagram of a pre-cast floor slab structure including a second pre-cast bathroom and toilet floor structure according to the present invention.

Detailed ways

In order to more clearly understand the features, content and advantages of the present invention and the effects that can be achieved, the present invention is described in detail as follows in the form of an embodiment in conjunction with the accompanying drawings, and the drawings used therein are only for the purpose of It is used to illustrate and assist the description, and therefore should not be interpreted or limited to the claims of the present invention with respect to the proportions and configuration relationships of the accompanying drawings.

Please refer to FIGS. 1A and 1B. FIG. 1A is a schematic structural diagram showing a building structure 1 according to the present invention. FIG. 1B is a partial enlarged view of FIG. 1A . The building structure 1 includes a plurality of precast beam-column structures 2 arranged at the corners and peripheral positions of the predetermined area A at predetermined intervals L1. The precast beam-column structure 2 includes a column structure 21 of a plurality of storey heights and a beam structure 22 having a length approximately half of the predetermined interval L1 at the first heights h3, h5, h7 of the second and higher floors, to as the load-bearing structure of the multi-storey building. In this embodiment, the column structure 21 and the beam structure 22 of the precast beam-column structure 2 are reinforced concrete structures.

As shown in FIG. 1B , the beam structure 22 of the precast beam-column structure 2 has a plurality of beam bars 224 protruding from the free end 223 of the beam structure 22 . In this embodiment, two rows of beam bars 224 protrude from the free end 223 of the beam structure 22 , and the arrangement and quantity of the beam bars 224 can also be adjusted according to requirements. Since the beam reinforcement 224 of the beam structure 22 of the precast beam-column structure 2 at the adjacent position is pre-sleeved with the steel bar coupler 225 and the stirrup 226 is set on the periphery of the beam reinforcement 224, when the pre-cast beam-column structure in the adjacent position When the beam bars 224 of the beam structure 22 of 2 are aligned with each other, by moving the steel bar coupler 225, the two ends of the steel bar coupler 225 are respectively connected to the corresponding beam bars of the beam structure 22 of the precast beam-column structure 2 in adjacent positions. Step 224 , move the stirrups 226 sleeved on the periphery of the beam bars 224 , so that the stirrups 226 are sleeved and fixed on the beam bars 224 at a predetermined interval L2 . In the embodiment of the present invention, the beam bars 224 of the beam structure 22 of the precast beam-column structure 2 have external threads (not shown in the drawings), and the steel bar couplers 225 have corresponding internal threads (not shown in the drawings). The steel bar coupler 225 can be screwed into the beam bar 224 in one direction (eg, clockwise or counterclockwise) to a first distance, so that the steel bar connector 225 is sleeved on the beam bar 224. After the beam rib 224 of the beam structure 22 of the cast beam-column structure 2 is aligned, the rebar coupler 225 is unscrewed from the beam rib 224 in another direction (eg, counterclockwise or clockwise) to a second distance (second distance). The distance is shorter than the first distance), so that the steel bar coupler 225 is sleeved on another adjacent beam bar 224 .

In this embodiment, the length of the precast beam-column structure 2 is about 14 to 15 meters, that is, the height of a three-story building. However, the present invention is not limited to this length, and the building structure 1 is not limited to three floors, and the number of floors can be adjusted as required. The length of 15 meters in this embodiment or shorter lengths in other embodiments, for example, a length of about 10 meters, is to comply with the regulations on the length of cargo in general trucks or trailers when the precast beam-column structure 2 is transported. However, in other embodiments, the precast beam-column structure 2 may be constructed near the construction site, in which case its length may be adjusted according to actual conditions, for example, may be 18 meters, 20 meters or longer.

Please refer to FIGS. 2A to 2E . FIG. 2A is a plan view showing that the first floor of the building structure 1 is not provided with a stair placement area and a bathroom and toilet placement area according to the present invention. 2B and 2C are plan layout views showing that the first floor of the building structure 1 includes a stair placement area and a bathroom placement area according to the present invention. 2D and 2E are plan layout views showing the second floor and higher floors of the building structure 1 including the stair placement area and the bathroom and toilet placement area according to the present invention. As shown in FIG. 2A , each floor of the building structure 1 is roughly divided into a plurality of areas A1 , A2 , A3 , and A4 along the first direction D1 at the pitch of the precast beam and column structures 2 . According to the actual space configuration requirements, the bathroom and toilet placement area T and the stair placement area S can be planned in multiple areas A1, A2, A3, and A4. For example, in Figure 2B, the bathroom and toilet placement area T and the stair placement area S will be It is planned in the original area A1 of the first floor. It is also possible to plan the toilet placement area T and the stair placement area S in different areas on the first floor. For example, in FIG. 2B , the bathroom toilet placement area T and the stair placement area S are planned in the original area A2 and the original area A1 respectively. middle. In addition, as shown in Fig. 2D, in the space configuration of the second floor and higher floors of the building structure 1, the areas where the toilet placement area T and the stair placement area S are located and their adjacent areas are at heights h3, h5 ( As shown in FIG. 1A ), a beam 5 is arranged. For example, if the toilet placement area T and the stair placement area S are planned in the original area A1, the beam 5 is arranged between the area A1 and the area A2. As shown in FIG. 2E , the toilet placement area T and the stair placement area S are located in the original area A1 and the original area A2 respectively, and a beam 5 is provided between the area A1 and the area A2 and between the area A2 and the area A3.

In addition to this, the floors of Building Structure 1 can be configured in the same way, for example: the plan configuration of the first floor of Building Structure 1 is as shown in Figure 2B, and the plan configuration of the second floor and higher floors is as shown in Figure 2B. The configuration shown in Figure 2D. In addition, each floor of the building structure 1 can also be arranged in different ways, for example, the plan configuration of the first floor of the building structure 1 is as shown in Fig. 2B, and the plan configuration of the second floor is shown in Fig. 2B. The configuration shown in 2E, the plan configuration of the higher floor is in the configuration shown in Figure 2D or Figure 2E.

3A to 3H are schematic structural diagrams showing different stages of constructing an interior structure of a building according to the first embodiment of the present invention. Please also refer to FIGS. 2B, 3A and 3B. 3A and 3B show the construction of the first floor of the building structure 1 according to the present invention, which includes the following steps:

Step (a), as shown in Figures 2B and 3A, the first pre-cast bathroom floor structure 31 is set at the first height h1 of the first floor of the building structure 1 in the bathroom placement area T, and the first floor structure 31 of the first floor is set. The height h1 is approximately at the floor position of the first floor. The first precast bathroom floor structure 31 is configured to pre-embed and configure the bathroom lines. In addition, the application of the first floor of the building structure 1 can be adjusted to perform step (a) after step (b) or step (c) as required.

Step (b), as shown in Figures 2B and 3A, the second height h2 of the first floor of the building structure 1 is provided with a lower short beam 41 on one side of the stair placement area S, wherein the second height h2 of the first floor is approximately Located at half the floor height of the first floor and higher than the first height h1 of the first floor. As shown in FIG. 3A , two ends of the lower short beam 41 are respectively connected to the first pre-cast beam-column structure 201 and the second pre-cast beam-column structure 202 in adjacent positions in the pre-cast beam-column structure.

In step (c), as shown in FIGS. 3A and 3B , the two ends of the lower precast stairs 61 on the first floor are respectively connected to the lower short beams 41 and the predetermined positions of the floor of the first floor of the building structure 1 .

In step (d), as shown in FIG. 3B , cross beams 5 are arranged at the first height h3 of the second floor of the building structure 1 to span opposite sides of the building structure 1 . The two ends of the beam 5 are respectively connected to the second precast beam and column structure 202 and the third precast beam and column structure 203 opposite to the second precast beam and column structure.

Step (e), as shown in Figures 2D, 3A and 3B, the first height h3 of the second floor is provided with the upper short beam 42 on the opposite side of the lower short beam 41 in the stair placement area S, the upper short beam 42 The two ends of the beam are respectively connected to the beam 5 and the fourth precast beam-column structure 204 .

In step (f), as shown in FIGS. 3A and 3B , the two ends of the upper precast staircase 62 on the first floor are respectively connected to the lower short beam 41 and the upper short beam 42 on the first floor.

Please also refer to Figures 2D, 3C and 3D. 3C and 3D show the construction of the second floor of the building structure 1, which includes the following steps:

Step (g), as shown in Figures 2D and 3C, the second pre-cast bathroom toilet floor structure 32 is set at the first height h3 of the second floor of the building structure 1 in the bathroom toilet placement area T of the second floor, the second The first height h3 of the floor is approximately at the floor position of the second floor. The second pre-cast bathroom floor structure 32 is configured to pre-embed and configure the bathroom lines. As shown in FIGS. 2D and 3C , the second pre-cast bathroom and toilet floor structure 32 is provided in part of the bathroom and toilet placement area T on the second floor, and the floor structure 91 is provided in the rest of the bathroom and toilet placement area T on the second floor. . In addition, step (g) can be adjusted to be performed after step (h) or step (i) according to the needs of the construction of the second floor of the building structure 1 .

Step (h), as shown in Figures 2D and 3C, in the second height h4 of the second floor of the building structure 1, the lower short beam 41 is set on one side of the stair placement area S of the second floor, wherein the second floor of the second floor. The second height h4 is located approximately at half the floor height of the second floor and is higher than the first height h3 of the second floor. As shown in FIG. 3C , both ends of the lower short beam 41 of the second layer are respectively connected to the first precast beam and column structure 201 and the second precast beam column structure 202 in adjacent positions in the precast beam column structure.

In step (i), as shown in FIGS. 3C and 3D , the two ends of the lower precast stairs 61 of the second floor are respectively connected to the lower short beams 41 of the second floor and the upper short beams 42 of the first floor.

In step (j), as shown in FIG. 3D , beams 5 are arranged at the first height h5 of the third floor of the building structure 1 to span opposite sides of the building structure 1 . The two ends of the cross beam 5 are respectively connected to the second pre-cast beam-column structure 202 and the third pre-cast beam-column structure 203 opposite to the second pre-cast beam-column structure 202 .

Step (k), as shown in FIGS. 2D and 3D , set the upper short beam 42 on the other side of the stair placement area S opposite to the lower short beam 41 at the first height h5 of the third floor. As shown in FIG. 3D , the two ends of the upper short beam 42 are respectively connected to the cross beam 5 of the second layer and the fourth precast beam-column structure 204 .

In step (1), as shown in FIGS. 3C and 3D , the two ends of the upper precast staircase 62 of the second floor are respectively connected to the lower short beam 41 and the upper short beam 42 of the second floor.

When the building structure 1 needs to have more than two floors of bathrooms and stairs, repeat steps (g) to (1) on the higher floors above the second floor until the highest floor is completed. After step (1), it further comprises the following steps:

In step (m), as shown in FIG. 3E , staggered reinforcement structures 92 are laid on the floor structures 91 of the second floor and the floors above it. As shown in FIGS. 3E and 3F , concrete 13 is poured on the steel structure 92 laid on the floor structure 91 .

Step (n), as shown in FIG. 3G, the first pre-cast bathroom floor structure 31 of the first layer and the second pre-cast bathroom floor structure 32 of the second layer and its upper layers are constructed as wall structures 35 and 32. The internal structure of the bathroom is assembled to form a first bathroom unit 33 and a second bathroom unit 34 (as shown in FIG. 3G ), and a board 37 is further built on the surface of the wall structure (as shown in FIG. 3H ). In addition, when the building structure 1 only needs to provide stairs and bathrooms on the first floor, step (n) is directly executed after step (f), and the first precast bathroom and toilet floor structure 31 is constructed as a wall structure and assembled The internal structure of the bathroom is to form the first bathroom unit and a board 37 is built on the wall structure.

As shown in FIGS. 3A and 3B , the precast beam-column structure 2 is provided with a first joint member 71 for connecting the lower short beam 41 and the upper short beam 42 . The precast beam-column structure 2 is provided with a second joint member 72 for connecting the beam 5 . In the present embodiment, the second pre-cast beam-column structure 202 and the third pre-cast beam-column structure 203 are provided with second joint parts 72 at the first heights h3, h5, h7 of the second and higher floors. to connect beam 5. The first pre-cast beam-column structure 201 and the second pre-cast beam-column structure 202 are provided with first joint parts 71 at the second heights h2 , h4 and h6 of each floor for connecting the lower short beams 41 . In addition, at the first heights h3, h5, h7 of the second floor and the upper floors of the fourth precast beam-column structure 204, first joint members 71 and the beams 5 and the fourth precast beam-column structure on each floor are provided A third joint component (not shown in the figure) is disposed at the position corresponding to 204 for connecting the upper short beam 42 .

Please refer to FIGS. 4A to 4C , which show schematic diagrams of the bonding process of fixing the cross beam 5 to the second joint member 72 of the precast beam-column structure 2 according to an embodiment of the present invention, including the following steps:

In steps (d) and (j), as shown in FIG. 4A , the beam 5 is hoisted to a position adjacent to the second joint member 72 to prepare for the second joint member to join the beam 5 to the precast beam-column structure 2 72. In this embodiment, the cross beam 5 is a steel beam, and the second joint member 72 is an elongated plate member. The outer end portion 721 of the second engaging member 72 is further provided with a plurality of through holes 722 (fourth through holes) for connecting the beams 5 . The plurality of perforations 722 are arranged vertically substantially in a double-row linear configuration. The beam 5 includes an upper wing plate 51 , a lower wing plate 52 and a web 53 . The lower wing plate 52 is substantially parallel to the upper wing plate 51 , and the upper and lower ends of the web 53 are substantially vertically connected to the lower side of the upper wing plate 51 and the upper side of the lower wing plate 52 . The top surface 511 of the upper wing plate 51 is provided with a plurality of shear nails 512 . The end 54 of the beam 5 has a plurality of perforations 541 . In the embodiment of the present invention, the plurality of perforations 541 (sixth perforations) are located in the web 53 of the beam 5 and are vertically arranged substantially in a double-row rectilinear manner, and are aligned with the outer ends 721 of the second engaging members 72 . A plurality of four perforations 722 correspond. Furthermore, as shown in FIGS. 4B and 4C , the constructor aligns the plurality of through holes 541 of the end 54 of the beam 5 with the plurality of through holes 722 of the end 721 of the second joint member 72 (as shown in FIG. 4B ) , pass the plurality of fasteners 10 (second fasteners, such as fixing bolts) through the plurality of through holes 722 of the end 721 of the second joint member 72 and the plurality of through holes 541 of the end 54 of the beam 5, and then Corresponding nuts (not shown) engage, thereby securing the beam 5 to the pre-cast beam and column structure 2 (as shown in Figure 4C).

Please refer to FIGS. 5A to 5C , which show schematic diagrams of the bonding process of fixing the lower short beam 41 to the first joint member 71 of the precast beam-column structure 2 according to an embodiment of the present invention.

The combination of the lower short beam 41 and the first joint part 71 of the precast beam-column structure 2 in steps (b) and (h) is roughly the same as the combination of the beam 5 and the joint part 71 in the previous embodiment. The same, but the size and specification of the lower short beam 41 and the first joint part 71 can be adjusted according to the requirements. In this embodiment, the lower short beam 41 is a steel beam. The lower short beam 41 is hoisted adjacent to the first joint part 71 in preparation for joining the lower short beam 41 to the first joint part 71 on the precast beam and column structure 2 . The outer end portion 711 of the first engaging member 71 is further provided with a plurality of through holes 712 (third through holes) for connecting the lower short beams 41 . The plurality of perforations 712 are arranged vertically substantially in a double-row linear configuration. The lower short beam 41 includes an upper wing plate 411 , a lower wing plate 412 and a web 413 . The lower wing plate 412 is substantially parallel to the upper wing plate 411 , and the upper and lower ends of the web 413 are substantially vertically connected to the lower side of the upper wing plate 411 and the upper side of the lower wing plate 412 . The end portion 414 of the lower short beam 41 has a plurality of through holes 4141 . In the embodiment of the present invention, the plurality of through holes 4141 are located in the web 413 of the lower short beam 41 and are generally vertically arranged in a double-row rectilinear manner, and are connected with the plurality of through holes of the outer end 711 of the first joint part 71 . 712 corresponds. Furthermore, as shown in FIGS. 5B and 5C , the constructor aligns the plurality of through holes 4141 of the end 414 of the lower short beam 41 with the plurality of through holes 712 of the end 711 of the first joint member 71 (as shown in FIG. 5B ). shown), insert a plurality of fasteners 11 (first fasteners, such as fixing bolts) through the plurality of through holes 712 of the end portion 711 of the first joint member 71 and the plurality of end portions 414 of the lower short beam 41 The perforations 4141 are then engaged with corresponding nuts (not shown), thereby securing the lower short beams 41 to the precast beam and column structure 2 (as shown in FIG. 5C ).

In addition, in this embodiment, the dimensions and specifications of the upper short beam 42 are substantially the same as those of the lower short beam 41 . A third joint member is provided at a position of the cross beam 5 corresponding to the fourth precast beam-column structure 204 . The manner of combining the upper short beam 41 with the first joint member 71 and the third joint member in steps (e) and (k) is the same as the combination of the lower short beam 41 and the first joint member 71 in the previously described embodiment In much the same way. In other embodiments of the present invention, the dimensions and specifications of the upper short beam 42 are not limited to be the same as those of the lower short beam 41, and different specifications and dimensions can also be used according to requirements.

Please refer to FIGS. 6A to 6D , which show schematic diagrams of the bonding process of fixing the cross beam 5 ′ to the second joint member 72 ′ of the precast beam-column structure 2 according to another embodiment of the present invention, including the following steps.

In steps (d) and (j), as shown in FIG. 6A , the cross beam 5 ′ is hoisted to the vicinity of the second joint member 72 ′, so as to prepare for joining the groove 55 ′ of the cross beam 5 ′ to the precast beam-column structure 2 of the second engagement member 72'. In this embodiment, the beam 5 ′ is a reinforced concrete structure or a precast reinforced concrete structure cast on site. As shown in FIG. 6B , the cross beam 5 ′ engages with the second joint member 72 ′ through the groove 55 ′ to be fixed to the precast beam-column structure 2 . The beam 5' extends upwardly from the bottom surface 56' of its end 54' with a groove 55' of a first length L1 that is less than the height H of the beam, and the second engagement member 72' has a second length in its longitudinal direction length L2. Since the second length L2 of the second engaging member 72' is smaller than the first length L1 of the groove 55' of the beam 5', when the second engaging member 72' is engaged in the groove 55' of the beam 5', the second The engaging member 72' can be completely engaged in the groove 55' of the beam 5', and there is still an accommodating space S in the groove 55' below the second engaging member 72'. In the present embodiment, after the groove 55' of the beam 5' is aligned with the second engaging member 72' in the lateral direction, the beam 5' is suspended and moved in a vertical downward direction to connect the second engaging member 72' is engaged in the groove 55' of the beam 5'. As shown in FIGS. 6C and 6D , the builder molds and grouting the connection between the beam 5 ′ and the precast beam-column structure 2 . In order to fill the gap between the beam 5' and the pre-cast beam-column structure 2, the left and right sides and the bottom side of the connection between the beam 5' and the pre-cast beam-column structure 2 and the bottom side of the groove 55' are formed by template 57'. Molding. Then, grouting is performed from the hole 58' reserved on the top surface 511' of the beam 5', so that the concrete or cement mortar can fill the gap between the beam 5' and the precast beam-column structure 2 along the hole 58', The gap between the groove 55' and the second engaging member 72' and the accommodating space S below the engaging member are located in the groove 55'. After the concrete or cement mortar is solidified, the formwork 57 ′ is removed, that is, the joining and fixing of the beam 5 ′ and the precast beam-column structure 2 is completed.

Please refer to FIGS. 7A to 7C , which show schematic diagrams of the bonding process of fixing the lower precast staircase 61 to the lower short beam 41 of the layer and the upper short beam 42 of the lower layer according to an embodiment of the present invention, including the following steps.

In step (c) and step (i), the lower precast staircase 61 is fixed to the lower short beam 41 of the floor and the upper part of the lower floor through the engagement of the buckled concave part 63 and the buckled convex part 43 Short beams 42 or predetermined locations of the first floor (not shown). As shown in FIG. 7A , a plurality of snap-fit protrusions 43 are disposed on the top surface 4111 of the lower short beam 41 and the top surface 4211 of the upper short beam 42 or predetermined positions on the first floor (not shown). In this embodiment, the top surface 4111 of the lower short beam 41 and the top surface 4211 of the upper short beam 42 each have four snap-fitting protrusions 43 , but the number of snap-fitting protrusions 43 can be adjusted according to requirements, and is not limited to the above quantities. The buckle protrusion 43 is a cylinder, and its bottom is welded and fixed to the top surface 4111 of the lower short beam 41 and the top surface 4211 of the upper short beam 42 . As shown in FIG. 7B , the lower precast stair 61 is hoisted to the vicinity of the lower short beam 41 and the upper short beam 42 to prepare to join the lower precast staircase 61 to the lower short beam 41 and the upper short beam 42 . The two ends 611 and 612 of the lower precast staircase 61 are respectively provided with a plurality of snap-fit concave portions 63 , which are matched with the snap-fit convex portions 43 . In this embodiment, the two ends 611 and 612 of the lower precast staircase 61 each have two snap-fit recesses 63 , but the number of snap-fit recesses 63 can be adjusted according to requirements and is not limited to the above-mentioned number. After the snap-fit concave portion 63 of the lower pre-cast stair 61 is aligned with the snap-fit convex portion 43 of the lower short beam 41 and the upper short beam 42, the lower pre-cast stair 61 moves in a vertical downward direction, so that the snap-fit convex portion 43 is moved vertically downward. The portion 43 is engaged in the snap-fit recessed portion 63 . As shown in FIG. 7C , after the buckling convex portion 43 is engaged with the buckling concave portion 63 , a resist 64 is provided on the top of the buckling convex portion 43 to fasten the buckling convex portion 43 in the buckling concave portion 63 . In other embodiments of the present invention, the two ends of the lower precast staircase can be provided with snap-fit protrusions, and the predetermined positions of the lower short beam and the first floor can be provided with snap-fit recesses (not shown in the figure).

In addition, the dimensions and specifications of the upper precast staircase 62 are substantially the same as those of the lower precast staircase 61, so that in steps (f) and (l), the upper precast staircase 62 is combined with the lower short beam 41 and the upper short beam 42. The combination of the lower precast staircase 61 with the lower short beam 41 and the upper short beam 42 in the previously described embodiment is also substantially the same. In other embodiments of the present invention, the dimensions and specifications of the upper pre-cast staircase 62 are not limited to be the same as those of the lower pre-cast staircase 61, and different specifications and dimensions can also be used according to requirements.

Please refer to FIGS. 2D , 3B, 3C and 8 . FIG. 8 is a schematic structural diagram of the present invention showing that the second pre-cast bathroom toilet floor structure 32 is disposed in the bathroom toilet placement area. The fifth pre-cast beam cast structure 205 and the sixth pre-cast beam cast structure 206 of the pre-cast beam-column structure 2 are provided with the first support members 81 in advance at the first heights h3 and h5 of the second and higher floors. A second support member 82 is preset on the beam 5 , which corresponds to the support member 81 of the fifth precast beam-column structure 205 and the sixth precast beam-column structure 206 . When the second pre-cast bathroom floor structure 32 is disposed in the bathroom installation area T, the first support members 81 of the fifth pre-cast beam and column structure 205 and the sixth pre-cast beam and column structure 206 support the second pre-cast bath One side of the bottom of the toilet floor structure 32 , and the second supporting member 82 of the beam 5 supports the other side of the bottom of the second precast bathroom floor structure 32 . As shown in FIG. 8 , the bottom of the second pre-cast bathroom and toilet floor structure 32 includes a support structure 36 , and the support structure 36 includes an outer steel beam 361 framed around the periphery of the bottom 321 of the pre-cast bathroom and toilet floor structure 32 and arranged at a certain interval and inner steel beams 362 connecting opposite sides of the outer steel beam 361 .

Please refer to FIGS. 9A to 9F . FIGS. 9A to 9F are schematic structural diagrams at different stages of constructing an internal structure of a building according to the second embodiment of the present invention. In step (a') and step (g') in the second embodiment, a wall structure 35 is constructed on the first pre-cast bathroom floor structure 31 and the second pre-cast bathroom floor structure 32 and the bathroom is assembled in advance After the internal structure is formed to form the first bathroom unit 33 and the second bathroom unit 34 respectively, the first bathroom unit 33 and the second bathroom unit 34 are respectively hoisted to the first floor and the second floor and the higher floors above. The bathroom and toilet placement area on the floor. Steps (b'), Steps (c'), Steps (d'), Steps (e'), Steps (f') on the remaining first floor and steps (h'), Steps on the second and higher floors (I'), step (j'), step (k'), step (l') and step (m') are the same as steps (b), step (c), step (d) of the previously described first embodiment ), step (e), step (f), step (h), step (I), step (j), step (k), step (l) and step (m).

Please refer to FIGS. 10A to 10C. FIG. 10A is another embodiment of the present invention showing that the building structure 1 is not provided with a stair placement area and a bathroom placement area. 10B and 10C are another embodiment of the present invention, showing that the building structure 1 includes a stair placement area and a bathroom and toilet placement area. As shown in FIG. 10A , the building structure 1 is divided into a plurality of areas A1 , A2 , A3 , and A4 along the first direction D1 approximately at the pitch of the precast beam and column structures 2 . According to the actual space configuration requirements, the bathroom and toilet placement area T and the stair placement area S can be planned in multiple areas A1, A2, A3, and A4. The bathroom and toilet placement area T and the stair placement area S can be planned in the same area (for example: Area A1), or the bathroom and toilet placement area T and the stair placement area S can be planned in different areas (for example, the bathroom and toilet placement area T is planned in Area A1, stair placement area S is planned in area A2). As shown in FIG. 10B , when the toilet placement area T is planned in the outer area (eg, area A1 ), the pillars 12 are arranged at the corners of the stair placement area S. As shown in FIG. 10C , when the toilet placement area T is planned in a non-outside area (eg, area A2 ), pillars 12 are arranged at two corners of the stair placement area S.

11A to 11G are schematic structural diagrams of constructing an internal structure of a building at different stages according to the third embodiment of the present invention, which include the following steps.

Step (a"), step (b") and step (c") are substantially the same as steps (a), step (b) and step (c) of the previous embodiment, wherein the step (a") further comprises: A pillar 12 is provided in the object structure 1 . As shown in FIGS. 10B and 11B , the pillars 12 are disposed at the corners of the stair placement area S of the building structure 1 and at positions corresponding to the fourth precast beam-column structure 204 . In addition, step (a") can be performed after step (b") or step (c") as required.

Step (e"), as shown in Figures 10B and 11B, at the first height h3 of the second floor of the building structure 1, the upper short beam 42 is set on the opposite side of the stair placement area S and the lower short beam 41, and the upper part is short. Both ends of the beam 42 are respectively connected to the pillar 12 and the fourth precast beam-column structure 204. Step (f") is substantially the same as the step (f) of the previous embodiment.

A step (g") is further included between the step (e") and the step (f"), as shown in Figs. 10B and 11C, a second precast bath is provided at the first height h3 of the second floor of the building structure 1 The precast floor structure 93 of the toilet floor structure 32 is located in the toilet placement area T of the second floor, and is approximately at the floor position of the second floor at the first height h3 of the second floor. The second precast bathroom toilet floor structure 32 is configured with To pre-embed and configure the toilet pipeline. In other embodiments of the present invention, step (g") can be performed after step (f"). Step (h) and step (i) are substantially the same.

Step (k"), as shown in Figures 10B and 11D, sets the upper short beam 42 on the opposite side of the stair placement area S and the lower short beam 41 at the first height h5 of the third floor, and the two sides of the upper short beam 42. The ends are respectively connected to the pillar 8 and the fourth pre-cast beam-column structure 204. In addition, in steps (e") and (k"), the pillars 12 and the fourth pre-cast beam-column structure 204 are provided with a plurality of The fourth joint part of the seventh perforation (not shown in the figure), the connection method of the upper short beam 42 to the first joint part 71 of the fourth pre-cast beam-column structure 204 and the fourth joint part of the pillar 12 is the same as that described earlier The upper short beam 42 of the embodiment is connected to the first joint part 71 of the fourth precast beam-column structure 204 and the third joint part of the cross beam 5 in substantially the same way. Step (1") is the same as the step (1") of the previously described embodiment ( l) are roughly the same.

When the building structure 1 needs to have more than two floors of bathrooms and stairs, repeat steps (g") to (l") on the higher floors above the second floor until the highest floor is completed (as shown in the figure). 11E). After completing step (1"), the following steps are further included:

Step (m"), as shown in Fig. 11F, on the second floor and above the area of the pre-cast floor structure 93 outside the pre-cast bathroom floor structure 32 is poured with concrete 13. Step ( n") is substantially the same as step (n) of the previous embodiment (as shown in Figure 11G).

Please refer to FIGS. 11B , 11C and 12 . FIG. 12 is a schematic structural diagram of the pre-cast floor structure 93 including the second pre-cast bathroom and toilet floor structure 32 according to the present invention. As shown in FIGS. 11B and 11C , the supporting members 83 are pre-arranged at the first heights h3 and h5 of the second floor of the third pre-cast beam casting structure 203 and the seventh pre-cast beam casting structure 207 and the upper floors above them. , and pre-set supporting parts (not shown in the figure) in the upper short beam 42 corresponding to the supporting parts 83 of the third pre-cast beam casting structure 203 and the seventh pre-cast beam casting structure 207 to support the The pre-cast floor structure 93 of the second pre-cast bathroom floor structure 32 . As shown in FIG. 12 , the bottom 931 of the precast floor structure 93 includes two strip-shaped supporting structures 932 arranged in parallel to enhance the structural strength of the precast floor structure 93 . When the pre-cast floor structure 39 is arranged in the toilet placement area T on the second floor and the upper floors, the supporting parts 83 of the third pre-cast beam-column structure 203 and the seventh pre-cast beam-column structure 207 support the pre-cast The bottom 931 of the floor structure 93 is on one side of the supporting structure 932 , and the supporting member of the upper short beam 42 supports the other side of the supporting structure 932 on the bottom 931 of the precast floor structure 93 .

The terms "a" or "an" are used herein to describe elements and components of the invention. This term is only for convenience of description and to give the basic idea of the invention. This recitation should be read to include one or at least one, and unless it is clear that it is meant otherwise, the singular also includes the plural. When used with the word "comprising" in the claims, the term "a" can mean one or more than one. Also, the term "or" herein is intended to mean "and/or."

Unless otherwise specified, expressions such as "above", "below", "upward", "left", "right", "downward", "body", "base", "vertical", "horizontal", "side" "," "higher," "lower," "upper," "above," "below," etc. spatial descriptions are indicated in relation to the directions shown in the figures. It should be understood that the spatial descriptions used herein are for illustrative purposes only and that actual implementations of the structures described herein may be spatially configured in any relative orientation without this limitation altering the advantages of embodiments of the present invention. For example, in the description of some embodiments, reference to an element being "on" another element may encompass conditions where the former element is directly on the latter element (eg, in physical contact with the latter element) as well as an A condition in which an intervening element or elements are located between a preceding element and a succeeding element.

As used herein, the terms "substantially," "substantially," "substantially," and "about" are used to describe and account for minor variations. When used in conjunction with an event or circumstance, these terms can mean both the circumstance in which the event or circumstance clearly occurs as well as the circumstance in which the event or circumstance occurs very closely.

The above-mentioned embodiments are only intended to illustrate the technical idea and characteristics of the present invention, and the purpose is to enable those skilled in the art to understand the content of the present invention and implement it accordingly. Equivalent changes or modifications made in the spirit disclosed in the present invention should still be covered by the patent scope of the present invention.

Symbol Description

1 Building structure

2 Precast beam-column structure

5 beams

5' beam

10 Fasteners

11 Fasteners

12 pillars

13 Concrete

21 column structure

22 Beam structure

31 The first precast bathroom and toilet floor structure

32 Second precast bathroom floor structure

33 First bathroom unit

34 Second bathroom unit

35 Wall structure

36 Support structure

361 External steel beam

362 Inner steel beam

37 Plates

41 Lower short beam

42 Upper short beam

43 Snap-fit projections

51 Upper wing

52 Lower wing

53 Web

54 end

54' end

55' groove

56' Bottom

57' Template

58' hole

61 Lower Precast Staircase

62 Upper Precast Staircase

63 Snap-fit recess

64 Guards

71 The first joint part

72 Second joint part

72' Second Engagement Part

81 Support parts

82 Support parts

83 Support parts

91 Floor structure

92 Reinforced structure

93 Precast floor structure

201 The first precast beam-column structure

202 Second precast beam-column structure

203 The third precast beam-column structure

204 Fourth precast beam-column structure

205 Fifth precast beam-column structure

206 Sixth precast beam-column structure

207 Seventh precast beam-column structure

223 Free end

224 Beam bars

225 Rebar Coupler

226 Stirrups

361 External steel beam

362 Inner steel beam

411 Upper wing

412 Lower wing

413 Web

414 end

511 Top

511' top

512 Shear Nails

611 End

612 end

711 End

712 perforation

721 end

721' end

722 perforation

931 Bottom

932 Support structure

4141 Perforation

4211 Top

A area

A1 area

A2 area

A3 area

A4 area

D1 direction

L1 interval

L2 interval

S Stair placement area

T Bath and toilet placement area

H height

h1 height

h2 height

h3 height

h3 height

h4 height

h5 height

h6 height

h7 height

Claims (14)

1. A construction method for the internal structure of a building, comprising the following steps: (a) a first precast bathroom floor structure is arranged at the first height of the first floor of the building structure; (b) disposing the lower short beam on one side of the stair placement area at the second height of the first floor, and the second height of the first floor is higher than the first height of the first floor; (c) connecting the end of the lower precast staircase to the lower short beam; (d) disposing beams at a first height of the second floor above the first floor to span opposite sides of the building structure, the beams having a height H from which the ends of the beams extend respectively The bottom surface of the end portion extends upward with a groove of a first length L1, and the first length L1 is smaller than the height H; (e) disposing an upper short beam on the other side of the stair placement area relative to the side at the first height of the second floor, and the end of the upper short beam is connected to the cross beam; and (f) connecting the two ends of the upper precast staircase to the lower short beam and the upper short beam respectively, wherein steps (b)-(f) are performed in sequence and step (a) is performed before step (d) ; wherein the building structure includes a plurality of pre-cast beam and column structures arranged at predetermined intervals, each of the plurality of pre-cast beam and column structures includes a column structure having a plurality of storey heights and a a beam structure having a length at a height that is approximately half the predetermined interval; Wherein, in step (b), the two ends of the lower short beam are respectively connected to the first pre-cast beam-column structure and the second pre-cast beam-column structure at two adjacent positions in the plurality of pre-cast beam-column structures; Wherein, in step (d), the two ends of the beam are respectively connected to the second pre-cast beam-column structure and the third pre-cast beam-column structure opposite to the second pre-cast beam-column structure. The opposite sides of the second pre-cast beam-column structure and the third pre-cast beam-column structure respectively comprise joint parts; Wherein step (d) includes: Lifting the two ends of the cross beam to the vicinity of the joint parts of the second pre-cast beam-column structure and the third pre-cast beam-column structure, and combining the two pre-cast beams with the grooves of the cross beam A joint member of a column structure and a third precast beam and column structure, the joint member being configured such that when the groove of the cross beam is joined to the joint of the two precast beam column structure and the third precast beam column structure When the part is assembled, the groove has an accommodating space under the joint part, and the top surface of the beam has a reserved hole to be connected to the accommodating space; and Cement mortar is poured from the reserved hole on the top surface of the beam, so that the cement mortar can fill the connection between the beam and the second precast beam-column structure and the third precast beam-column structure along the hole the gap, the gap between the groove and the engaging part, and the accommodating space where the groove is located under the engaging part. 2. The method according to claim 1, further comprising the steps of: (g) arranging a second precast bathroom toilet floor structure at the first height of the second layer in the toilet placement area of the second layer; (h) disposing another lower short beam on one side of the stair placement area at the second height of the second floor, and the second height of the second floor is higher than the second height of the second floor first height; (i) connecting the two ends of the other lower pre-cast staircase to the other lower short beam and the upper short beam of the first floor respectively; (j) providing another beam at the first height of the third storey above the second storey to span opposite sides of the building structure; (k) On the other side of the stair placement area where another upper short beam is arranged at the first height of the third floor relative to the side, the ends of the other upper short beam are connected said other beam; and (l) connecting the two ends of the other upper precast staircase to the other lower short beam and the other upper short beam, respectively, wherein (h)-(l) are performed sequentially and step (g) is performed before step (j). 3. The method according to claim 2, wherein both ends of each of the lower precast staircase and the upper precast staircase are provided with snap-fit recesses, and each of the lower short beam and the upper short beam Buckling protrusions are provided, or the two ends of each of the lower precast stairs and the upper precast stairs are provided with buckle protrusions, and each of the lower short beam and the upper short beam is provided There is a buckling concave portion, and the buckling convex portion is engaged with the buckling concave portion to perform step (c), step (f), step (i) and step (l). 4. The method of claim 2, wherein In step (e), the two ends of the upper short beam are respectively connected to the fourth pre-cast beam-column structure of the plurality of pre-cast beam-column structures and the cross beam; In step (h), the two ends of the other lower short beam are respectively connected to the first pre-cast beam-column structure and the second pre-cast beam-column structure; In step (j), the two ends of the other beam are respectively connected to the second pre-cast beam-column structure and the third pre-cast beam-column structure; In step (k), two ends of the other upper short beam are respectively connected to the fourth precast beam-column structure and the other beam. 5. The method according to claim 4, wherein the lower short beam and the upper short beam are steel beams, the two ends of the lower short beam are provided with a plurality of first through holes, and the upper short beam is provided with a plurality of first through holes. The two ends are provided with a plurality of second through holes, the first and second pre-cast beam-column structures are located at the second height of each floor, and the fourth pre-cast beam-column structure is located on the second floor. A first joint member with a plurality of third through holes is disposed at a height, and a second joint member with a plurality of fourth through holes is disposed at a first height of the second floor of the second and third precast beam-column structures by inserting a plurality of first fasteners respectively through the plurality of first through holes of the lower short beam and the plurality of first joint parts of the first and second precast beam-column structures a third perforation to perform steps (b) and (h), by inserting another plurality of first fasteners through the plurality of second perforations and the fourth pre-casting of the upper short beam respectively Steps (e) and (k) are performed by the plurality of third through holes of the first joint part of the beam-column structure and the plurality of fifth through holes of the third joint part of the beam. 6 . The method of claim 4 , wherein a fifth precast beam and column structure and a sixth precast beam and column structure of the plurality of precast beam and column structures are pre-configured with first support members, and the The beam is pre-set with a second supporting member, so that in step (g), the first supporting member supports the bottom side of the second pre-cast bathroom floor structure, and the second supporting member supports the bottom side of the second pre-cast bathroom floor structure. Support the other side of the bottom of the second pre-cast bathroom floor structure. 7. The method according to any one of claims 2 to 6, wherein step (g) comprises arranging the second pre-cast bathroom floor structure on a partial area of the bathroom arranging area, and arranging the floor structure on the the rest of the toilet placement area; Further included after step (l) are steps (m) of laying staggered rebar structures on the floor structure and pouring concrete thereon, and step (n) of pouring the first precast bath The toilet floor structure and the second pre-cast bathroom and toilet floor structure construct a wall structure and assemble the interior structure of the bathroom to form a first bathroom unit and a second bathroom unit. 8. A construction method for an internal structure of a building, comprising the following steps: (a') hoisting the first bathroom unit with pre-configured wall structure and internal structure to the first floor of the building structure; (b') disposing a lower short beam on one side of the stair placement area at the second height of the first floor, and the second height of the first floor is higher than the first height of the first floor ; (c') connecting one end of the lower precast staircase to the lower short beam; (d') disposing beams at a first height of the second floor above the first floor so as to span opposite sides of the building structure, the beams having a height H, the ends of the beams respectively extending from The bottom surface of the end portion extends upwardly to a groove with a first length L1, and the first length L1 is smaller than the height H; (e') at the first height of the second floor, an upper short beam is arranged on the other side of the stair placement area relative to the side, and the end of the upper short beam is connected to the cross beam; and (f') connecting the two ends of the upper precast stairs to the lower short beam and the upper short beam respectively, wherein steps (b')-(f') are performed in sequence and step (a') is executed in step ( d') before execution; wherein the building structure includes a plurality of pre-cast beam and column structures arranged at predetermined intervals, each of the plurality of pre-cast beam and column structures includes a column structure having a plurality of storey heights and a a beam structure having a length at a height that is approximately half the predetermined interval; Wherein, in step (b), the two ends of the lower short beam are respectively connected to the first pre-cast beam-column structure and the second pre-cast beam-column structure at two adjacent positions in the plurality of pre-cast beam-column structures; Wherein, in step (d), the two ends of the beam are respectively connected to the second pre-cast beam-column structure and the third pre-cast beam-column structure opposite to the second pre-cast beam-column structure. The opposite sides of the second pre-cast beam-column structure and the third pre-cast beam-column structure respectively comprise joint parts; Wherein step (d) includes: Lifting the two ends of the cross beam to the vicinity of the joint parts of the second pre-cast beam-column structure and the third pre-cast beam-column structure, and combining the two pre-cast beams with the grooves of the cross beam A joint member of a column structure and a third precast beam and column structure, the joint member being configured such that when the groove of the cross beam is joined to the joint of the two precast beam column structure and the third precast beam column structure When the part is assembled, the groove has an accommodating space under the joint part, and the top surface of the beam has a reserved hole to be connected to the accommodating space; and Cement mortar is poured from the reserved hole on the top surface of the beam, so that the cement mortar can fill the connection between the beam and the second precast beam-column structure and the third precast beam-column structure along the hole the gap, the gap between the groove' and the engaging part, and the accommodating space where the groove is located under the engaging part. 9. The method of claim 8, further comprising the steps of: (g') hoisting the second bathroom unit with pre-configured wall structure and internal structure to the bathroom placement area on the second floor of the building structure; (h') Disposing another lower short beam on one side of the stair placement area at the second height of the second floor, and the second height of the second floor is higher than all of the second floor. said first height; (i') connecting the two ends of the other lower precast staircase to the other lower short beam and the upper short beam of the first floor respectively; (j') providing another beam at the first height of the third floor above the second floor to span opposite sides of the building structure; (k') on the other side of the stair placement area where another upper short beam is arranged at the first height of the third floor relative to the side, the end of the other upper short beam connecting said other beam; and (1') Connecting the other lower short beam and the other upper short beam respectively to both ends of the other upper precast staircase. 10. The method of claim 9, wherein both ends of each of the lower precast stairs and the upper precast stairs are provided with snap-fit recesses, and each of the lower short beam and the upper short beam Buckling protrusions are provided, or the two ends of each of the lower precast stairs and the upper precast stairs are provided with buckle protrusions, and each of the lower short beam and the upper short beam is provided There is a buckling concave portion, and the buckling convex portion is engaged with the buckling concave portion to execute the step (c'), the step (f'), the step (i') and the step (l'). 11. The method of claim 9, wherein In step (e'), the two ends of the upper short beam are respectively connected to the fourth pre-cast beam-column structure of the plurality of pre-cast beam-column structures and the cross beam; In step (h'), two ends of the other lower short beam are respectively connected to the first pre-cast beam-column structure and the second pre-cast beam-column structure; In step (j'), two ends of the other beam are respectively connected to the second pre-cast beam-column structure and the third pre-cast beam-column structure among the plurality of pre-cast beam-column structures ; In step (k'), two ends of the other upper short beam are respectively connected to the fourth precast beam-column structure and the other beam. 12. The method according to claim 11, wherein the lower short beam and the upper short beam are steel beams, the two ends of the lower short beam are provided with a plurality of first through holes, and the upper short beam is provided with a plurality of first through holes. The two ends are provided with a plurality of second through holes, the first and second pre-cast beam-column structures are located at the second height of each floor, and the fourth pre-cast beam-column structure is located on the second floor. A first joint member with a plurality of third through holes is disposed at a height, and a second joint member with a plurality of fourth through holes is disposed at a first height of the second floor of the second and third precast beam-column structures by inserting a plurality of first fasteners respectively through the plurality of first through holes of the lower short beam and the plurality of first joint parts of the first and second precast beam-column structures a third through hole to perform step (b') and step (h'), by inserting another plurality of first fasteners through the plurality of second through holes and the fourth through the upper short beam respectively The plurality of third perforations of the first joint part of the beam-column structure and the plurality of fifth perforations of the third joint part of the beam are pre-cast to perform steps (e') and (k'). 13. The method of claim 11, wherein a fifth pre-cast beam-column structure and a sixth pre-cast beam-column structure of the plurality of pre-cast beam-column structures are pre-configured with first support members, and the The beam is pre-set with a second supporting member, so that in step (g'), the first supporting member supports the bottom side of the second toilet unit, and the second supporting member supports the bottom side of the second toilet unit. on the other side of the bottom of the second toilet unit. 14. The method according to any one of claims 9 to 13, wherein step (g') comprises arranging the second toilet unit on a part of the toilet arranging area, and arranging a floor structure on the toilet The remaining area of the toilet placement area; further comprising a step (m') after the step (l') of laying a staggered steel structure on the floor structure and pouring concrete thereon.

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