Fabricated building structure

Abstract

The invention relates to the technical field of buildings, in particular to an assembly type building structure which comprises a building body and a positioning locking piece, the building body is a gable wall composed of foaming ceramic prefabricated ridge bricks, a gradient framework and foaming ceramic prefabricated wind resisting plates, and the foaming ceramic prefabricated wind resisting plates are assembled on the gradient framework; the foamed ceramic prefabricated ridge brick comprises a ridge end hollow brick, a ridge middle hollow brick and a ridge top hollow brick, and the positioning locking piece comprises elastic traction pieces arranged in the ridge end hollow brick, the ridge middle hollow brick and the ridge top hollow brick respectively. The ridge end hollow bricks, the ridge middle hollow bricks and the ridge top hollow bricks are rapidly connected through the elastic traction pieces, threads do not need to be formed in the inner inserting holes in the elastic traction pieces and the outer inserting holes in the hollow brick units, bolts are prefabricated on foaming ceramics after local materials are used, the cost is low, the hollow brick units are rapidly assembled together through the elastic traction pieces, and the production efficiency is high. The tedious process is omitted, and the construction efficiency is improved.

Description

Technical Field

[0001] This invention relates to the field of building technology, and in particular to a prefabricated building structure. Background Technology

[0002] Prefabricated construction, with its significant advantages such as fast construction speed, controllable quality, low environmental pollution, and low labor dependence, has become an important direction for the transformation of modern building industrialization, especially in structural parts with complex shapes or specific functional requirements, such as gable walls, where its application potential is enormous. As an important facade element of a building, the gable wall not only undertakes the functions of structural support and thermal insulation, but its unique form (such as arches and pointed roofs) is also key to determining the architectural style and aesthetic value. To achieve prefabricated construction of gable walls, existing technologies typically combine prefabricated decorative components (such as arched bricks) with an internal supporting framework (such as a slope framework). The conventional approach is to first lay a thermal insulation layer (such as foamed ceramic panels) on the slope framework, and then install decorative bricks divided into several units (such as lower, middle, and top arched bricks) sequentially on top.

[0003] However, this assembly process faces many challenges: for example, the connection between decorative brick units and between the units and the base layer (foamed ceramic) needs to be efficient and reliable. Existing technologies either involve building the wall on-site with blocks, covering the gable with tiles, and applying exterior paint to the outer surface, which involves many wet work processes; or cutting profiles on-site, welding them, and then installing the exterior wall panels to finally assemble the ridge wall. This method is prefabricated, involves a lot of on-site work, and involves a large number of bolts and nuts, which is time-consuming and labor-intensive, making it difficult to meet the "fast" installation requirements pursued by prefabricated buildings. Summary of the Invention

[0004] To address the above problems, the present invention provides the following technical solution: A prefabricated building structure includes a building body and positioning locking components. The building body is a gable wall composed of prefabricated foamed ceramic ridge bricks, a slope frame, and prefabricated foamed ceramic baffles. The prefabricated foamed ceramic baffles are assembled on the slope frame. The prefabricated foamed ceramic ridge bricks include hollow bricks at the ridge ends, hollow bricks in the middle of the ridge, and hollow bricks at the top of the ridge. The positioning locking components include elastic traction members respectively disposed in the hollow bricks at the ridge ends, hollow bricks in the middle of the ridge, and hollow bricks at the top of the ridge. The elastic traction members quickly connect the hollow bricks at the ridge ends, hollow bricks in the middle of the ridge, and hollow bricks at the top of the ridge. The positioning locking components also include a plurality of bolts cast above the prefabricated foamed ceramic baffles. The hollow bricks at the ridge ends, hollow bricks in the middle of the ridge, and hollow bricks at the top of the ridge have external insertion holes corresponding to the bolts. The elastic traction members have internal insertion holes corresponding to the external insertion holes. The bolts pass through the external insertion holes and enter the internal insertion holes to position and lock the elastic traction members.

[0005] As a further preference, the slope framework is a steel structure welding framework in the shape of the Chinese character 'tu', which gradually narrows from the bottom upwards and forms two slopes of the gable on both sides thereof. The foamed ceramic precast fascia board is spliced on the slope framework along these two slopes, and the foamed ceramic precast crest tile is spliced on the foamed ceramic precast fascia board along the two slopes of the foamed ceramic precast fascia board.

[0006] As a further preference, at least two sections of the ridge-end hollow bricks on the same side are spliced on the lower position of the foamed ceramic precast fascia board through the elastic traction members inside them. At least two sections of the ridge-middle hollow bricks on the same side are spliced on the upper position of the foamed ceramic precast fascia board through the elastic traction members inside them, and at the same time are connected to the last section of the ridge-end hollow bricks through the elastic traction members in the first section of the ridge-middle hollow bricks. At least two sections of the ridge-top hollow bricks are spliced on the two slope sides of the mountain peak position of the foamed ceramic precast fascia board through the elastic traction members inside them.

[0007] As a further preference, the foamed ceramic precast fascia board is at least two layers spliced up and down, and the foamed ceramic precast crest tile is laid on the uppermost layer of the foamed ceramic precast fascia board.

[0008] As a further preference, the elastic traction member is a spring clip composed of two upper and lower clamping pieces, a hinge shaft转接 between the two clamping pieces, and a torsion spring sleeved on the hinge shaft. The two free ends of the torsion spring are elastically abutted against the opposite surfaces of the two clamping pieces respectively. One end of the two clamping pieces extends beyond one end of the ridge-end hollow brick or the ridge-middle hollow brick or the ridge-top hollow brick and is provided with a hooking portion; clamping grooves in a clamping relationship with the hooking portion are opened on both sides of the cavity walls of the ridge-end hollow brick, the ridge-middle hollow brick and the ridge-top hollow brick.

[0009] As a further preference, a quick installation groove is opened inwards along the cavity wall from one end of the ridge-end hollow brick, the ridge-middle hollow brick and the ridge-top hollow brick, a quick installation hole is opened at the inner end of the quick installation groove, and elastic rods elastically entering the quick installation hole are provided at both ends of the hinge shaft.

[0010] As a further preference, the other ends of the two clamping pieces extend into one end of the ridge-end hollow brick or the ridge-middle hollow brick or the ridge-top hollow brick and are provided with warping portions, and the inner insertion holes are opened on the warping portions.

[0011] As a further preference, a triangular included angle space is formed between the clamping piece and the surface where the clamping groove is located from one end to the other end of the warping portion, and the included angle space gradually slopes downwards in a direction away from the inner insertion hole.

[0012] As a further preferred embodiment, the pointed shape of the hollow brick at the ridge is a "herringbone" pot handle or an "irregular" pot handle.

[0013] The advantages of this invention compared to the prior art are: The hollow brick unit is equipped with elastic traction components and slots. The bottom of the hollow brick unit has an external insertion hole, and the elastic traction component has an internal insertion hole. During installation, the elastic traction components are first assembled into the hollow brick unit. Then, the hollow brick unit is laid on the foamed ceramic by fitting the bolts through the external insertion holes. The inner end of the bolt enters the hollow brick unit and inserts into the internal insertion hole, thus restricting the elastic traction component. The elastic traction components can also be used to quickly snap the hollow brick units together, improving construction efficiency.

[0014] The elastic traction component uses its internal insertion hole to form a sleeve relationship with the bolts on the foamed ceramic, snapping all the hollow brick units together. The force during snapping is distributed along the connection direction of these hollow brick units, while the force during sleeve connection is transmitted to the foamed ceramic from the extension direction of the bolts, improving the firmness. The bolts do not require nuts, therefore the internal insertion hole on the elastic traction component and the external insertion hole on the hollow brick unit do not need to be threaded, resulting in low cost. Using the elastic traction component to quickly assemble hollow brick units eliminates cumbersome processes and improves construction efficiency. Attached Figure Description

[0015] Figure 1 A schematic diagram (half-part) of a prefabricated building structure from a first-view perspective, provided for an embodiment of the present invention. Figure 2 A schematic diagram of a prefabricated building structure consisting only of the gable wall, provided for an embodiment of the present invention; Figure 3 A schematic diagram of the ridge-end hollow bricks in a prefabricated building structure provided for an embodiment of the present invention; Figure 4 A prefabricated building structure provided for embodiments of the present invention is composed of Figure 3 A schematic diagram showing the cutaway view; Figure 5 A schematic diagram of a hinge shaft cut open in a prefabricated building structure provided for an embodiment of the present invention; Figure 6 This is a schematic diagram illustrating the application of a prefabricated building structure in gable walls of various styles, as provided in the embodiments of the present invention.

[0016] In the diagram: 1. Foamed ceramic precast ridge brick; 2. Slope frame; 3. Foamed ceramic precast windbreak board; 101. Hollow brick at the ridge end; 102. Hollow brick in the middle of the ridge; 103. Hollow brick at the top of the ridge; 104. External insertion hole; 105. Internal insertion hole; 106. Slot; 107. Angle space; 108. Quick-install slot; 109. Quick-install hole; 5. Elastic traction component; 51. Clamping piece; 53. Hinge shaft; 52. Torsion spring; 54. Hook part; 55. Warping part; 56. Elastic rod; 6. Bolt. Detailed Implementation

[0017] The above and other embodiments and advantages of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0018] In one implementation, such as Figures 1-6 As shown: This embodiment provides a prefabricated building structure, including a building body and positioning locking components. The building body is a gable wall composed of prefabricated foamed ceramic ridge bricks 1, a slope frame 2, and prefabricated foamed ceramic windbreak panels 3. The prefabricated foamed ceramic windbreak panels 3 are assembled on the slope frame 2. The prefabricated foamed ceramic ridge bricks 1 include hollow bricks 101 at the ridge end, hollow bricks 102 in the middle of the ridge, and hollow bricks 103 at the top of the ridge. The positioning locking components include elastic traction members 5 respectively disposed in the hollow bricks 101 at the ridge end, 102 in the middle of the ridge, and 103 at the top of the ridge. The traction component 5 quickly connects the ridge end hollow brick 101, the ridge middle hollow brick 102, and the ridge top hollow brick 103. The positioning locking component also includes several bolts 6 cast on the foamed ceramic precast air-blowing plate 3. The ridge end hollow brick 101, the ridge middle hollow brick 102, and the ridge top hollow brick 103 are respectively provided with external insertion holes 104 corresponding to the bolts 6. The elastic traction component 5 is provided with an internal insertion hole 105 corresponding to the external insertion hole 104. The bolts 6 pass through the external insertion hole 104 and enter the internal insertion hole 105 to position and lock the elastic traction component 5.

[0019] The slope frame 2 serves as the framework for prefabricated buildings. During construction, the slope frame 2 acts as the base, and the foamed ceramic prefabricated windbreak panels 3 are first spliced ​​onto the slope frame 2. For example, the foamed ceramic prefabricated windbreak panels 3 are prefabricated into multiple splicing units (separate, which facilitates construction) based on the "arch" shape of the foamed ceramic prefabricated ridge bricks 1. Then, they are constructed onto the front and back sides of the slope frame 2 in a symmetrical manner using tension bolts or prefabricated fastening structures. In this embodiment, the specific "arch" shape of the foamed ceramic prefabricated ridge bricks 1 is the final determining factor for the shape of the gable wall, that is, the slope frame 2 and the foamed ceramic prefabricated windbreak panels 3 are customized according to the shape of the foamed ceramic prefabricated ridge bricks 1. The foamed ceramic precast ridge brick 1 is also a modular assembly structure composed of multiple units, such as ridge end hollow bricks 101, ridge middle hollow bricks 102, and ridge top hollow bricks 103. The ridge end hollow bricks 101 are located at the lower edge of the gable wall, the ridge middle hollow bricks 102 are located in the middle of the gable wall, and the ridge top hollow bricks 103 are located at the tip of the gable wall. The shape of the ridge top hollow bricks 103 is determined by the arched peak profile of the gable wall. The foamed ceramic precast ridge brick 1 is the external decoration that determines the architectural style of the gable wall. To enable the rapid assembly of these hollow brick units (ridge end hollow bricks 101, ridge middle hollow bricks 102, and ridge top hollow bricks 103) onto the foamed ceramic precast windbreak plate 3, elastic traction components 5 are installed within these hollow brick units to quickly connect them. Upward-extending bolts 6 are pre-fabricated on the foamed ceramic precast windbreak plate 3, and openings are made at the bottom of these hollow brick units. An external insertion hole 104 is provided, and an internal insertion hole 105 is provided on the elastic traction member 5. First, these elastic traction members 5 are assembled into these hollow brick units. Then, these hollow brick units are laid on the foamed ceramic precast air-supported plate 3 by fitting them onto bolts 6 through the external insertion hole 104. The inner end of the bolt 6 enters the hollow brick unit and inserts into the internal insertion hole 105, thus restricting the elastic traction member 5. These elastic traction members 5 can also be used to quickly snap these hollow brick units together, improving construction efficiency. These elastic traction members 5 form a sleeve relationship with the bolts 6 on the foamed ceramic precast air-supported plate 3 through the internal insertion hole 105. These elastic traction members 5 also snap together all the hollow brick units using a snap-fit ​​relationship. The force during snap-fit ​​is distributed in the connection direction of these hollow brick units (the slope direction of the slope frame 2). The force during sleeve fit is transmitted to the foamed ceramic precast air-supported plate 3 from the extension direction of the bolt 6. Therefore, these hollow brick units are more firmly laid on the foamed ceramic precast air-supported plate 3. Bolt 6 does not need to be equipped with a nut, so the inner insertion hole 105 on the elastic traction member 5 and the outer insertion hole 104 on the hollow brick unit do not need to be threaded. Bolt 6 is prefabricated (cast) on the foamed ceramic prefabricated air-blowing plate 3 after being sourced locally, which is low cost.

[0020] In another embodiment, the slope skeleton 2 is a steel structure welding frame in the shape of the Chinese character 'tu' (土), which gradually tapers from the bottom upwards and forms two slopes of the gable on both sides thereof. The foamed ceramic precast gable board 3 is spliced on the slope skeleton 2 along these two slopes, and the foamed ceramic precast ridge tile 1 is spliced on the foamed ceramic precast gable board 3 along the two slopes of the foamed ceramic precast gable board 3. A number of steel structure mesh holes are formed in the steel structure frame of the slope skeleton 2, which facilitates the splicing of the foamed ceramic precast gable boards 3 in a front-back symmetric manner. Clamping plates or hooks are precast on the opposite surfaces of the front-back foamed ceramic precast gable boards 3, forming a quick connection relationship during docking, which improves the construction efficiency. These steel structure mesh holes of the slope skeleton 2 enhance the strength of the gable. In addition, cement is finally poured below the foamed ceramic precast gable board 3 on the front and back sides of the gable to serve as the foundation for supporting the foamed ceramic precast gable board 3 and also to improve the strength of the gable. The foamed ceramic precast gable board 3 is at least two layers spliced up and down, and the foamed ceramic precast ridge tile 1 is laid on the topmost layer of the foamed ceramic precast gable board 3, serving as the supporting foundation for the foamed ceramic precast ridge tile 1 and also assisting the foamed ceramic precast ridge tile 1 in playing a decorative role.

[0021] In another embodiment, the hollow bricks 101 at the ridge end on the same side are at least two segments, and are spliced ​​to the lower end of the foamed ceramic precast windbreak board 3 by the elastic traction members 5 inside them. The hollow bricks 102 in the middle of the ridge on the same side are at least two segments, and are spliced ​​to the upper part of the foamed ceramic precast windbreak board 3 by the elastic traction members 5 inside them. At the same time, they are connected to the last segment of the ridge end hollow brick 101 by the elastic traction members 5 inside the first segment of the ridge middle hollow brick 102. The hollow bricks 103 at the top of the ridge are at least two segments, and are spliced ​​to the two slope sides of the peak of the foamed ceramic precast windbreak board 3 by the elastic traction members 5 inside them. The number of these hollow brick units (ridge end hollow brick 101, ridge middle hollow brick 102, and ridge top hollow brick 103) will be set according to the length and height range of the "arch". For example, the longer the "arch" and the higher the height, the more hollow brick units there will be. In particular, the ridge end hollow brick 101 and ridge middle hollow brick 102 will have more hollow brick units in order to transition to the slope of the ridge top hollow brick 103. For example, when there are two or more ridge end hollow bricks 101, an elastic traction member 5 is set in each ridge end hollow brick 101. They are connected by the elastic traction member 5 and then laid on the foamed ceramic prefabricated windbreak board 3 by the bolt hole connection method. Similarly, when there are two or more hollow ridge bricks 102, each hollow ridge brick 102 is equipped with an elastic traction member 5. These bricks are then connected via the elastic traction member 5 and laid on the foamed ceramic precast gable board 3 through bolt hole connection. The last hollow ridge brick 102 is connected to the ridge top hollow brick 103 via the elastic traction member 5, adaptable to arched gable walls with various slopes. The precast foamed ceramic ridge bricks 1 and foamed ceramic precast gable board 3, being pre-formed, are more suitable for precast prefabricated houses or modular emergency refuge houses due to their shorter foundation construction cycle compared to traditional house construction. The base (slope frame 2 plus wall cement) is equivalent to an increased weight after foundation backfilling, resulting in greater stability. The connection of the elastic traction member 5 and the bolt hole connection method allows for mutual restraint between structures, reducing construction difficulty.

[0022] In another embodiment, the elastic traction member 5 is a spring clip consisting of two upper and lower clamping plates 51, a hinge shaft 53 connecting the two clamping plates 51, and a torsion spring 52 sleeved on the hinge shaft 53. The two free ends of the torsion spring 52 elastically abut against the opposite surfaces of the two clamping plates 51. One end of the two clamping plates 51 extends beyond one end of the ridge end hollow brick 101, the ridge middle hollow brick 102, or the ridge top hollow brick 103, and is provided with a hooking part 54. The cavity walls of the ridge end hollow brick 101, the ridge middle hollow brick 102, or the ridge top hollow brick 103 are provided with slots 106 that engage with the hooking part 54. A quick-installation groove 108 is formed along the cavity wall at one end of the ridge end hollow brick 101, the middle ridge hollow brick 102, and the top ridge hollow brick 103. A quick-installation hole 109 is formed at the inner end of the quick-installation groove 108. Both ends of the hinge shaft 53 are provided with elastic rods 56 that can elastically enter the quick-installation hole 109. The other ends of the two clamping pieces 51 extend into one end of the ridge end hollow brick 101, the middle ridge hollow brick 102, or the top ridge hollow brick 103, and are provided with a warped part 55. An inner insertion hole 105 is formed on the warped part 55.

[0023] like Figure 4 , Figure 5 As shown, the elastic traction component 5 is assembled in the hollow brick unit (ridge end hollow brick 101, ridge middle hollow brick 102, or ridge top hollow brick 103). That is, the elastic traction component 5 is an accessory in the hollow brick unit. Before connecting the hollow brick units together, the elastic traction component 5 is pushed into the cavity of the hollow brick unit. The elastic rods 56 at both ends of the hinge shaft 53 are aligned with the two quick-release slots 108 and pushed inwards until a "click" sound is heard, indicating that the elastic rods 56 have sprung into the quick-release holes 109. At this time, the elastic traction component 5 is restricted within the hollow brick unit, and at this time, one end of the clamping piece 51... The hook portion 54 extends beyond one end of the hollow brick unit, serving as a secure point for quick assembly with the quick-release slot 108 in another hollow brick unit. When the latter hollow brick unit is connected to the former, the hook portion 54 in the former hollow brick unit extends into the latter hollow brick unit and hooks onto the quick-release slot 108. Under the elastic pull of the two free ends of the torsion spring 52 against the opposing surfaces of the two clamping pieces 51, the hook portions 54 of the two clamping pieces 51 are firmly engaged with the quick-release slot 108. The quick-release slot 108 is inclined, allowing the hook portion 54 to move only in one direction and preventing it from disengaging in the opposite direction. This facilitates quick assembly and prevents the two hollow brick units from loosening.

[0024] In addition, before the hollow brick unit (ridge end hollow brick 101, ridge middle hollow brick 102, or ridge top hollow brick 103) is installed above the foamed ceramic prefabricated air-supported plate 3, a layer of cement is applied to the foamed ceramic prefabricated air-supported plate 3. This serves two purposes: first, to make the bolts 6 prefabricated on it more secure; and second, to create a solid effect on the bottom surface of the hollow brick unit. In particular, when the hollow brick unit is placed above the foamed ceramic prefabricated air-supported plate 3, excess cement will pass through the external insertion hole 104 at the bottom of the hollow brick unit and be poured into the triangular angle space 107 formed between the surfaces where the clip 51 and the slot 106 are located. The other part will continue upward through the internal insertion hole 105 and be poured between the two clips 51. After solidification, the two clips 51 are locked in the hollow cavity of the hollow brick unit to prevent loosening.

[0025] like Figure 6 As shown, depending on the architectural style, the pointed shape (the maximum peak of the arch) of the hollow brick 103 on the ridge top proposed in this invention is a "herringbone" pot ear shape or an "irregular" pot ear shape. This makes the application range of the hollow brick 103 on the ridge top more extensive. For example, the gable wall style of residents in the Guangqu area is mostly "herringbone" pot ear shape, while the gable wall style of Hakka, Chaoshan and Leizhou residents is mostly "wood ear", "metal", "water", "fire" and "earth" pot ear shapes. However, regardless of the style, the hollow brick 103 on the ridge top can be hollow, and an elastic traction member 5 can be set inside to achieve quick connection with the hollow brick 102 in the ridge.

[0026] The above orientation references do not represent the specific orientations of each component in this implementation scheme. This implementation scheme is only for the convenience of describing the scheme and to make relative descriptions based on the orientations of the references. In reality, the specific orientations of each component are based on their actual installation and use, as well as the orientation descriptions that are customary to those skilled in the art. This is hereby stated.

[0027] The specific embodiments described above further illustrate the inventive purpose, technical solution, and beneficial effects of the present invention. It should be understood that the above descriptions are merely specific embodiments of the present invention and are not intended to limit the scope of protection of the present invention. In particular, it should be noted that any modifications, equivalent substitutions, or improvements made by those skilled in the art within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A prefabricated building structure, characterized in that, It includes a building body and positioning locking parts. The building body is a gable wall composed of foamed ceramic precast ridge bricks (1), slope skeletons (2), and foamed ceramic precast gable boards (3). The foamed ceramic precast gable boards (3) are assembled on the slope skeletons (2). The foamed ceramic precast ridge bricks (1) include ridge-end hollow bricks (101), ridge-middle hollow bricks (102), and ridge-top hollow bricks (103). The positioning locking parts include elastic traction parts (5) respectively arranged in the ridge-end hollow bricks (101), ridge-middle hollow bricks (102), and ridge-top hollow bricks (103). The ridge-end hollow bricks (101), ridge-middle hollow bricks (102), and ridge-top hollow bricks (103) are quickly connected through the elastic traction parts (5). The positioning locking parts further include several bolts (6) cast above the foamed ceramic precast gable boards (3). Outer insertion holes (104) corresponding to the bolts (6) are respectively formed on the ridge-end hollow bricks (101), ridge-middle hollow bricks (102), and ridge-top hollow bricks (103). Inner insertion holes (105) corresponding to and located within the outer insertion holes (104) are formed on the elastic traction parts (5). The bolts (6) pass through the outer insertion holes (104) and enter the inner insertion holes (105) to position and lock the elastic traction parts (5).

2. The prefabricated building structure according to claim 1, characterized in that, The slope skeleton (2) is a "tu"-shaped steel structure welding frame that gradually tapers from bottom to top and forms two slopes of the gable wall on its two sides. The foamed ceramic precast gable boards (3) are spliced along these two slopes on the slope skeleton (2). The foamed ceramic precast ridge bricks (1) are spliced along the two slopes of the foamed ceramic precast gable boards (3) on the foamed ceramic precast gable boards (3).

3. A prefabricated building structure according to claim 2, characterized in that, The ridge-end hollow bricks (101) on the same side are at least in two sections and are spliced at the lower end position of the foamed ceramic precast gable boards (3) through the elastic traction parts (5) inside them. The ridge-middle hollow bricks (102) on the same side are at least in two sections and are spliced at the upper body position of the foamed ceramic precast gable boards (3) through the elastic traction parts (5) inside them, and at the same time are connected to the last section of the ridge-end hollow bricks (101) through the elastic traction parts (5) in the first section of the ridge-middle hollow bricks (102). The ridge-top hollow bricks (103) are at least in two sections and are spliced on the two slope sides of the gable tip position of the foamed ceramic precast gable boards (3) through the elastic traction parts (5) inside them.

4. A prefabricated building structure according to claim 3, characterized in that, The foamed ceramic precast gable boards (3) are at least two layers spliced up and down, and the foamed ceramic precast ridge bricks (1) are laid on the topmost layer of the foamed ceramic precast gable boards (3).

5. A prefabricated building structure according to claim 4, characterized in that, The elastic traction member (5) consists of two upper and lower clamping plates (51), a hinge shaft (53) connecting the two clamping plates (51), and a torsion spring (52) sleeved on the hinge shaft (53). The two free ends of the torsion spring (52) elastically abut against the opposite surfaces of the two clamping plates (51). One end of the two clamping plates (51) extends beyond one end of the ridge end hollow brick (101), the ridge middle hollow brick (102), or the ridge top hollow brick (103) and is provided with a hooking part (54). The cavity walls of the ridge end hollow brick (101), the ridge middle hollow brick (102), and the ridge top hollow brick (103) are provided with slots (106) that engage with the hooking part (54).

6. A prefabricated building structure according to claim 5, characterized in that, A quick-installation groove (108) is provided along the cavity wall at one end of the hollow brick (101) at the ridge end, the hollow brick (102) in the middle of the ridge, and the hollow brick (103) at the top of the ridge. A quick-installation hole (109) is provided at the inner end of the quick-installation groove (108). Both ends of the hinge shaft (53) are provided with elastic rods (56) that can elastically enter the quick-installation hole (109).

7. A prefabricated building structure according to claim 6, characterized in that, The other end of the two clips (51) extends into one end of the ridge end hollow brick (101), the ridge middle hollow brick (102), or the ridge top hollow brick (103) and is provided with a warped part (55), and the inner insertion hole (105) is opened on the warped part (55).

8. A prefabricated building structure according to claim 7, characterized in that, The warped portion (55) forms a triangular angle space (107) between the clip (51) and the surface where the slot (106) is located from one end to the other. The angle space (107) gradually slopes downward away from the inner insertion hole (105).

9. A prefabricated building structure according to claim 8, characterized in that, The pointed shape of the hollow brick (103) on the ridge is a "herringbone" pot handle or an "irregular" pot handle.

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