PPVC space module connecting structure

Abstract

A PPVC space module connecting structure belongs to the technical field of PPVC modular buildings and comprises a connecting structure body arranged between opposite side walls of a first PPVC space module and a second PPVC space module, the connecting structure body comprises a first groove and a second groove which are formed in the surfaces of the side walls of the first PPVC space module and the second PPVC space module, the first groove and the second groove are staggered, and the first groove and the second groove are arranged in a staggered mode. A plurality of U-shaped steel connecting pieces are embedded in the side wall, opposite to the first groove or the second groove, of the second PPVC space module or the PPVC space module, the U-shaped steel connecting pieces at the same height are inserted into the opposite first groove or second groove and are connected through transverse connecting pieces, the U-shaped steel connecting pieces which are vertically opposite are connected through longitudinal damping supports, and the longitudinal damping supports are connected with the second PPVC space module or the second PPVC space module. The space between the opposite side walls of the first PPVC space module and the second PPVC space module is filled with alkali-activated concrete. The connection strength and the anti-seismic property of the connection structure can be improved.

Description

Technical Field

[0001] The invention belongs to the technical field of PPVC modular buildings, and specifically relates to a PPVC space module connection structure. Background Art

[0002] The PPVC space module is a cubic box structure, including four walls, a top plate, and a bottom plate. The side walls of adjacent PPVC space modules are connected to form a complete wall. This wall is a load-bearing structure, which requires that the connection method between the walls of adjacent PPVC space modules can effectively ensure structural strength and meet force and earthquake resistance requirements.

[0003] However, the traditional connection method between adjacent side walls of PPVC space modules cannot meet the above requirements, which is specifically reflected in: Figure 7 As shown, the current PPVC space module side wall connection method uses wire tie rings. Wire tie rings are embedded in the walls on both sides. After assembly, the wire tie rings on both sides intersect to form a gap. Rebar is placed in this gap and then grouting and anchoring are performed in the reserved gap between the two walls to form a complete structure. This solution only uses longitudinal rebar connected by wire rope, which cannot meet the connection strength requirements between PPVC space modules. In the event of an earthquake, it is easy to cause a major safety accident. Utility Model Content

[0004] In response to the problems of the existing technology, the present invention discloses a PPVC space module connection structure, which can effectively improve the connection strength between adjacent side walls of the PPVC space module and meet the structural stress and earthquake resistance requirements.

[0005] To achieve the above purpose, the new technical solution is:

[0006] A PPVC space module connection structure includes a PPVC space module 1 and a PPVC space module 2. A connection structure body is provided between the opposing side walls of the PPVC space module 1 and the PPVC space module 2. The connection structure body includes a plurality of grooves 1 and 2, respectively, which are transversely opened on the surface of one side wall of the PPVC space module and a plurality of grooves 2, respectively, which are transversely opened on the surface of the side wall of the PPVC space module 2. The grooves 1 and 2 are staggered with each other. A plurality of U-shaped steel connectors are respectively pre-embedded in the PPVC space module 2 or the side wall of the PPVC space module opposite to the grooves 1 or 2. The ends of the U-shaped steel connectors at the same height are inserted into the opposing grooves 1 or 2 and connected by transverse connectors. The U-shaped steel connectors that are opposed to each other up and down are connected by longitudinal shock-absorbing brackets. The U-shaped steel connectors of the PPVC space module 1 and the PPVC space module 2 connected by the longitudinal shock-absorbing brackets are alternately arranged. Alkali-activated concrete is filled between the opposing side walls of the PPVC space module 1 and the PPVC space module 2.

[0007] Preferably, the U-shaped steel connector includes a U-shaped steel body with an upward opening, one end of the U-shaped steel body is embedded in the side wall of PPVC space module 1 or PPVC space module 2 to form an embedded section, and the other end extends into groove 1 or groove 2 on the opposite side to form an insertion section, an intermediate section is formed between the embedded section and the insertion section, a through hole is opened at the bottom of the intermediate section, a plurality of anti-pullout plates are fixedly connected to the upper surface of the bottom of the embedded section, and first connection holes are provided on both side walls of the insertion section.

[0008] Preferably, a number of embedded steel plates are evenly distributed in the groove one and the groove two, respectively. One end of the embedded steel plate is embedded in the side wall of the PPVC space module one or the PPVC space module two, and the other end is located in the groove one or the groove two. A second connection hole is opened on the embedded steel plate located in the groove one or the groove two.

[0009] Preferably, the transverse connecting member includes a transverse steel bar that passes through the first connecting hole and the second connecting hole at the same groove one or the same groove two, and the transverse steel bar is used to fix the insertion section of the U-shaped steel connecting member at the same height to the side wall of the PPVC space module one or the PPVC space module two on the opposite side.

[0010] Preferably, the longitudinal shock-absorbing bracket includes several evenly distributed and vertically opposite annular steel bars, the outer walls of the several annular steel bars are welded and fixed by multiple longitudinally arranged longitudinal steel bars, a central longitudinal steel bar is provided at the axis of the annular steel bars, and several shock-absorbing rods evenly distributed around the central longitudinal steel bar are welded between the central longitudinal steel bar and the inner wall of the annular steel bar.

[0011] Preferably, the longitudinal shock-absorbing bracket passes through the through holes of several upper and lower opposite U-shaped steel connectors, and connects and fixes the middle sections of the U-shaped steel connectors of the PPVC space module 1 and the PPVC space module 2 in the same longitudinal column.

[0012] Preferably, the shock absorbing rod is made of shape memory alloy or low carbon steel.

[0013] Preferably, the length of the longitudinal shock-absorbing bracket is greater than the height of the PPVC space module 1 and the PPVC space module 2.

[0014] The beneficial effects of this new PPVC space module connection structure are:

[0015] The relative side walls of the novel PPVC space module 1 and the PPVC space module 2 are not only connected and fixed by transverse connectors, but also connected and fixed by a plurality of longitudinal shock-absorbing brackets. The cross-connection method effectively improves the connection strength and seismic performance. After pouring alkali-activated concrete between the relative side walls of the PPVC space module 1 and the PPVC space module 2, a complete wall is formed. As the load-bearing structure of the PPVC building, the wall has the advantages of high strength and good seismic performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a side structural schematic diagram of the present invention when being implemented.

[0017] Figure 2 This is a front view of the wall structure on one side of the new PPVC space module.

[0018] Figure 3 This is a schematic diagram of the front structure of the new longitudinal shock-absorbing bracket.

[0019] Figure 4 This is a schematic diagram of the top view of the structure of the new longitudinal shock-absorbing bracket.

[0020] Figure 5 This is a schematic diagram of the top view of the structure of the new U-shaped steel connector.

[0021] Figure 6 This is a schematic diagram of the top view of the structure during the implementation of this new model.

[0022] Figure 7 It is a schematic diagram of the connection method of the prior art.

[0023] 01. Side wall 1; 02. Side wall 2; 03. Steel wire pull ring; 04. Longitudinal connecting steel bar; 1. PPVC space module 1; 101. Groove 1; 102. Embedded steel plate; 103. Second connecting hole; 2. PPVC space module 2; 3. U-shaped steel connector; 301. Through hole; 302. First connecting hole; 303. Pull-out plate; 304. Embedded section; 305. Insert section; 4. Transverse steel bar; 5. Groove 2; 6. Longitudinal shock-absorbing bracket; 601. Longitudinal steel bar; 602. Annular steel bar; 603. Central longitudinal steel bar; 604. Shock-absorbing rod; 7. Alkali-activated concrete. DETAILED DESCRIPTION

[0024] The following description is only a preferred embodiment of the present invention and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

[0025] The following embodiments may be understood as individually expressing a part of the local structure or method of the present invention, or may be understood as a combination of the embodiments to explain the connotation of a larger structure or method of the present invention.

[0026] Example 1

[0027] A PPVC space module connection structure, such as Figure 1-6 As shown, it includes a PPVC space module 1 and a PPVC space module 2. A connecting structure body is provided between the opposite side walls of the PPVC space module 1 and the PPVC space module 2. The connecting structure body includes a plurality of grooves 101 respectively opened in the transverse direction on the surface of one side wall of the PPVC space module and a plurality of grooves 2 5 opened in the transverse direction on the surface of the second side wall of the PPVC space module. The grooves 1 and 2 are staggered with each other. A plurality of U-shaped steel connectors 3 are respectively embedded in the side wall of the PPVC space module 2 or the PPVC space module 1 opposite to the groove 101 or the groove 2. The ends of the U-shaped steel connectors 3 at the same height are inserted into the opposite groove 101 or the groove 2 and connected by transverse connectors. The upper and lower opposite U-shaped steel connectors 3 are connected by a longitudinal shock-absorbing bracket 6. The U-shaped steel connectors 3 of the PPVC space module 1 and the PPVC space module 2 connected by the longitudinal shock-absorbing bracket 6 are alternately arranged. Alkali-activated concrete 7 is filled between the opposite side walls of the PPVC space module 1 and the PPVC space module 2.

[0028] In this embodiment, alkali-activated concrete can be manufactured using the following formula, which has the characteristic of high strength.

[0029] Table 1. Examples of alkali-activated concrete mix proportions

[0030]

[0031] In the table, ZS1 is alkali-activated concrete without fly ash; ZSF2 is alkali-activated concrete with fly ash.

[0032] In this embodiment, the relative side walls of PPVC space module 1 and PPVC space module 2 are not only connected and fixed by horizontal connectors, but also connected and fixed by a number of longitudinal shock-absorbing brackets. The horizontal and vertical cross-connection method effectively improves the connection strength. After pouring alkali-activated concrete between the relative side walls of PPVC space module 1 and PPVC space module 2, a complete wall is formed. As the load-bearing structure of the PPVC building, the wall has the advantages of high strength and good seismic performance, which solves the problems of simple structure, insufficient seismic resistance and insufficient connection strength of the connection method in the prior art.

[0033] Example 2

[0034] like Figure 1 、5 As shown in , 6, the U-shaped steel connector 3 includes a U-shaped steel body with an opening facing upward, one end of the U-shaped steel body is embedded in the side wall of the PPVC space module 1 or the PPVC space module 2 to form an embedded section 304, and the other end extends into the groove 101 or groove 2 on the opposite side to form an insertion section 305, and an intermediate section is formed between the embedded section 304 and the insertion section 305. A through hole 301 is provided at the bottom of the intermediate section, and a plurality of anti-pullout plates 303 are fixedly connected to the upper surface of the bottom of the embedded section 304, and first connection holes 302 are provided on both side walls of the insertion section 305.

[0035] like Figure 1 、 2 As shown in Figures 6 and 7, a number of embedded steel plates 102 are evenly distributed in the groove 101 and the groove 2, respectively. One end of the embedded steel plate 102 is embedded in the side wall of the PPVC space module 1 or the PPVC space module 2, and the other end is located in the groove 101 or the groove 2. A second connecting hole 103 is opened on the embedded steel plate located in the groove 101 or the groove 2.

[0036] like Figure 1 、 6 As shown, the transverse connector includes a transverse steel bar 4 that passes through the first connecting hole 302 and the second connecting hole 103 at the same groove 101 or the same groove 2. The transverse steel bar 4 fixes the U-shaped steel connector insertion section 305 at the same height to the side wall of the PPVC space module 1 or the PPVC space module 2 2 on the opposite side.

[0037] Example 3

[0038] like Figure 1 、 3 -5, the longitudinal shock-absorbing bracket 6 includes a plurality of evenly distributed and vertically opposite annular steel bars 602, the outer walls of the plurality of annular steel bars 602 are welded and fixed by a plurality of longitudinally arranged longitudinal steel bars 601, a central longitudinal steel bar 603 is provided at the axis of the annular steel bar 602, and a plurality of shock-absorbing rods 604 evenly distributed around the central longitudinal steel bar are welded between the central longitudinal steel bar 603 and the inner wall of the annular steel bar 602.

[0039] like Figure 1 、 6 As shown, the longitudinal shock-absorbing bracket 6 passes through the through holes 301 of several U-shaped steel connectors 3 opposite to each other, and connects and fixes the middle sections of the U-shaped steel connectors 3 of the PPVC space module 1 and the PPVC space module 2 2 in the same longitudinal column.

[0040] like Figure 1-6 As shown, the shock absorbing rod 604 is made of shape memory alloy or low carbon steel.

[0041] As Figure 1 shown, the length of the longitudinal shock-absorbing support 6 is greater than the height of the PPVC space module one 1 and the PPVC space module two 2, facilitating the lapping of the longitudinal shock-absorbing supports between different floors.

[0042] In this embodiment, the longitudinal shock-absorbing support is a component for realizing longitudinal connection, which can not only realize the connection and fixation of the U-shaped steel connecting pieces on both sides, but also play a shock-absorbing effect. When an earthquake comes, the inner wall of the through hole extrudes the longitudinal shock-absorbing support, the shock-absorbing rod is deformed under stress, plays a shock-absorbing and energy dissipation effect, and is beneficial to the rapid recovery of the deformation of the wall structure, reduces or avoids hard damage.

Claims

1. A PPVC space module connection structure, characterized by: It includes a PPVC space module 1 and a PPVC space module 2. A connection structure body is provided between the opposite side walls of the PPVC space module 1 and the PPVC space module 2. The connection structure body includes a plurality of grooves 1 respectively opened in the transverse direction on the surface of one side wall of the PPVC space module and a plurality of grooves 2 opened in the transverse direction on the surface of the side wall of the PPVC space module 2. The grooves 1 and 2 are staggered with each other. A plurality of U-shaped steel connectors are respectively embedded in the PPVC space module 2 or the side wall of the PPVC space module opposite to the grooves 1 or 2. The ends of the U-shaped steel connectors at the same height are inserted into the opposite grooves 1 or 2 and connected by transverse connectors. The upper and lower opposite U-shaped steel connectors are connected by longitudinal shock-absorbing brackets. The U-shaped steel connectors of the PPVC space module 1 and the PPVC space module 2 connected by the longitudinal shock-absorbing brackets are alternately arranged. Alkali-activated concrete is filled between the opposite side walls of the PPVC space module 1 and the PPVC space module 2.

2. A PPVC space module connection structure according to claim 1, characterized in that: The U-shaped steel connector includes a U-shaped steel body with an upward opening. One end of the U-shaped steel body is embedded in the side wall of PPVC space module 1 or PPVC space module 2 to form an embedded section, and the other end extends into groove 1 or groove 2 on the opposite side to form an insertion section. An intermediate section is formed between the embedded section and the insertion section. A through hole is provided at the bottom of the intermediate section. A plurality of anti-pullout plates are fixedly connected to the upper surface of the bottom of the embedded section, and first connection holes are provided on both side walls of the insertion section.

3. A PPVC space module connection structure according to claim 2, characterized in that: Several embedded steel plates are evenly distributed in the groove one and groove two, respectively. One end of the embedded steel plate is embedded in the side wall of the PPVC space module one or the PPVC space module two, and the other end is located in the groove one or the groove two. A second connecting hole is opened on the embedded steel plate located in the groove one or the groove two.

4. A PPVC space module connection structure according to claim 3, characterized in that: The transverse connecting member includes a transverse steel bar that passes through the first connecting hole and the second connecting hole at the same groove one or the same groove two. The transverse steel bar fixes the insertion section of the U-shaped steel connecting member at the same height to the side wall of the PPVC space module one or the PPVC space module two on the opposite side.

5. A PPVC space module connection structure according to claim 4, characterized in that: The longitudinal shock-absorbing bracket includes several evenly distributed and vertically opposite annular steel bars. The outer walls of the several annular steel bars are welded and fixed by multiple longitudinally arranged longitudinal steel bars. A central longitudinal steel bar is provided at the axis of the annular steel bar. Several shock-absorbing rods evenly distributed around the central longitudinal steel bar are welded between the central longitudinal steel bar and the inner wall of the annular steel bar.

6. A PPVC space module connection structure according to claim 5, characterized in that: The longitudinal shock-absorbing bracket passes through the through holes of several upper and lower opposite U-shaped steel connectors, and connects and fixes the middle sections of the U-shaped steel connectors of the PPVC space module 1 and the PPVC space module 2 in the same longitudinal column.

7. A PPVC space module connection structure according to claim 6, characterized in that: The shock-absorbing rod is made of shape memory alloy or low-carbon steel.

8. A PPVC space module connection structure according to claim 7, characterized in that: The length of the longitudinal shock-absorbing bracket is greater than the height of the PPVC space module 1 and the PPVC space module 2.

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