Prefabricated decorative concrete wallboard and concrete frame structure connecting system
By pre-embedding the connection system of angle iron and load-bearing angle iron, and combining the bolt assembly and the cooperation of U-shaped insert plate and V-shaped groove, the problem of construction personnel having difficulty entering small spaces for connection is solved, and efficient, stable connection and tight splicing of prefabricated concrete wall panels are achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- CHINA CONSTR SENVENTH ENG BUREAU INSTALLATION ENG
- Filing Date
- 2023-09-28
- Publication Date
- 2026-07-07
Smart Images
Figure CN117248695B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the technical field of building decoration, and in particular to a prefabricated decorative concrete wall panel and concrete frame structure connection system. Background Technology
[0002] In the field of building decoration, prefabricated concrete wall panels are becoming increasingly popular due to their uniform quality, mass production, short construction period, high construction precision, and low construction cost. Prefabricated concrete wall panels need to be installed on a frame. The frame is connected to the concrete frame structure using chemical bolts or expansion bolts. Typically, angle irons are pre-embedded on the back of the prefabricated concrete wall panels. One side of the angle iron is embedded in the prefabricated concrete wall panel, while the other side extends outwards perpendicular to the back of the panel. Horizontal load-bearing angle irons are welded to the frame. The outward-extending side of the angle iron overlaps with the horizontal portion of the load-bearing angle iron, and the two are connected using bolts and nuts. When installing angle irons and connecting load-bearing angle irons above the prefabricated concrete wall panels using bolts and nuts, it is possible to reach through the gap above the panel to tighten them. However, the distance between the prefabricated decorative concrete wall panels and the concrete frame wall is generally small, making it impossible for construction workers to enter the interior to install the panels underneath. Even in slightly larger spaces where personnel can enter, crawling into the frame for installation is inefficient, increases the risk of injury, and makes inspection difficult. Summary of the Invention
[0003] The purpose of this invention is to solve the above-mentioned problems and provide a connection system for prefabricated decorative concrete wall panels and concrete frame structures.
[0004] The technical solution of this invention is: a connection system between a prefabricated decorative concrete wall panel and a concrete frame structure, comprising mounting angle irons pre-embedded on both sides of the upper back of the prefabricated concrete wall panel, a frame directly connected to the concrete frame, load-bearing angle irons horizontally arranged on the front of the frame, and a bolt assembly connecting the mounting angle irons and the load-bearing angle irons; the extended end of the mounting angle irons is provided with a vertical elongated hole perpendicular to the prefabricated concrete wall panel; the horizontal end of the load-bearing angle irons is provided with a parallel elongated hole parallel to the prefabricated concrete wall panel; the bolt assembly includes mounting bolts, mounting nuts, adjusting nuts, and clamping nuts; The mounting bolts pass through the parallel and vertical elongated holes sequentially from bottom to top; the mounting nuts, adjusting nuts, and clamping nuts are all threadedly engaged with the mounting bolts and respectively engage with the upper end face of the horizontal end of the load-bearing angle iron, the lower end face of the extended end of the mounting angle iron, and the upper end face of the extended end of the mounting angle iron; the connection system also includes a vertical groove plate that is vertically connected to the frame and a U-shaped insert plate that is connected to the frame-assembled concrete wall panel; the vertical groove plate has an upward-facing V-shaped groove; the U-shaped insert plate is set downwards, with one end embedded in the lower sides of the back of the assembled concrete wall panel and the other end vertically inserted into the V-shaped groove.
[0005] Preferably, the bolt assembly further includes flat washers that mate with the mounting bolts; the flat washers are respectively disposed between the end of the mounting bolt and the lower end face of the horizontal end of the load-bearing angle iron, between the upper end face of the horizontal end of the load-bearing angle iron and the lower end face of the mounting nut, between the upper end face of the adjusting nut and the lower end face of the extended end of the mounting angle iron, and between the upper end face of the extended end of the mounting angle iron and the lower end face of the clamping nut.
[0006] Preferably, the angle iron and U-shaped insert are installed on the same side of the prefabricated concrete wall panel, corresponding vertically.
[0007] Preferably, the connection system between the prefabricated decorative concrete wall panel and the concrete frame structure further includes interlocking protrusions A and B; protrusions A and B are respectively set on the edges of two horizontally adjacent concrete wall panels; protrusion A is on the outside and protrusion B is on the inside; the length of protrusion A is greater than the length of protrusion B.
[0008] Preferably, the connection system between the prefabricated decorative concrete wall panel and the concrete frame structure further includes interlocking protrusions C and D; protrusions C and D are respectively set on the edges of two vertically adjacent concrete wall panels; protrusion C is on the outside and protrusion D is on the inside; the length of protrusion C is greater than the length of protrusion D.
[0009] Preferably, the connection system between the prefabricated decorative concrete wall panel and the concrete frame structure also includes reinforcing angle irons; the reinforcing angle irons are set below the vertical groove plate and welded to the frame.
[0010] Preferably, load-bearing angle irons are used to horizontally penetrate the prefabricated concrete wall panels.
[0011] Preferably, the connection system between the prefabricated decorative concrete wall panel and the concrete frame structure also includes a fixing nut, an adjusting bolt, and a U-shaped decorative strip; the fixing nut is vertically set corresponding to the gap between adjacent prefabricated concrete wall panels and welded to the frame; the adjusting bolt is threadedly engaged with the fixing nut, with its head facing outward; the U-shaped decorative strip is horizontally inserted into the gap between adjacent prefabricated concrete wall panels; both sides of the U-shaped decorative strip abut against the edge of the prefabricated concrete wall panel; the closed end of the U-shaped decorative strip abuts against the head of the adjusting bolt.
[0012] The beneficial effects of this invention are as follows: The prefabricated decorative concrete wall panel and concrete frame structure connection system of this invention has the following advantages:
[0013] (1) The U-shaped insert plate and V-shaped groove of the present invention are conducive to the initial positioning of the prefabricated concrete wall panel, thereby simplifying the installation of the prefabricated concrete wall panel; the mounting angle iron and the load-bearing angle iron are connected by bolt assembly; the vertical elongated hole aligns the outer surface of the prefabricated concrete wall panel; the parallel elongated hole makes adjacent prefabricated concrete wall panels close together; the adjusting nut aligns the upper end of the prefabricated concrete wall panel; the prefabricated concrete wall panel has the ability to adjust in two horizontal directions and in the vertical direction.
[0014] (2) In this invention, protrusion A is on the outside and protrusion B is on the inside; the length of protrusion A is greater than the length of protrusion B; horizontally adjacent prefabricated concrete wall panels can be tightly spliced; protrusion C is on the outside and protrusion D is on the inside; the length of protrusion C is greater than the length of protrusion D; vertically adjacent prefabricated concrete wall panels can be tightly spliced.
[0015] (3) The end of the adjusting bolt of the present invention can limit the depth of the U-shaped decorative strip inserted into the gap; the end of the adjusting bolt can be adjusted to make the U-shaped decorative strip inserted into the gap at the appropriate depth, so that it will not be inserted too deeply and enter the frame, nor will it be inserted too shallow and the end will be exposed on the outside of the prefabricated concrete wall panel. Attached Figure Description
[0016] Figure 1 This is a structural schematic diagram of the prefabricated decorative concrete wall panel and concrete frame structure connection system of the present invention;
[0017] Figure 2 yes Figure 1 AA section view;
[0018] Figure 3 yes Figure 1 BB section view;
[0019] In the diagram: 01. Prefabricated concrete wall panel, 02. Concrete frame structure, 021. Coating, 03. Skeleton, 1. Mounting angle iron, 11. Vertical elongated hole, 2. Load-bearing angle iron, 21. Parallel elongated hole, 3. Bolt assembly, 31. Mounting bolt, 32. Mounting nut, 33. Adjusting nut, 34. Clamping nut, 35. Flat washer, 4. Vertical groove plate, 41. V-groove, 5. U-shaped insert plate, 61. Protrusion A, 62. Protrusion B, 71. Protrusion C, 72. Protrusion D, 8. Reinforcing angle iron, 91. Fixing nut, 92. Adjusting bolt, 93. U-shaped decorative strip. Detailed Implementation
[0020] Example 1: See Figure 1-3A prefabricated decorative concrete wall panel and concrete frame structure connection system includes mounting angle irons 1 embedded in the upper sides of the back of the prefabricated concrete wall panel 01, a frame 03 directly connected to the concrete frame, load-bearing angle irons 2 horizontally arranged on the front of the frame 03, and a bolt assembly 3 connecting the mounting angle irons 1 and the load-bearing angle irons 2. The extended ends of the mounting angle irons 1 are provided with vertical elongated holes 11 perpendicular to the prefabricated concrete wall panel 01; the horizontal ends of the load-bearing angle irons 2 are provided with parallel elongated holes 21 parallel to the prefabricated concrete wall panel 01. The vertical elongated holes 11 are responsible for adjusting the vertical direction of the prefabricated concrete wall panel 01 to align the outer surfaces of the prefabricated concrete wall panel 01; the parallel elongated holes 21 are responsible for adjusting the parallel direction of the prefabricated concrete wall panel 01 to make adjacent prefabricated concrete wall panels 01 close together. The bolt assembly 3 includes mounting bolts 31, mounting nuts 32, adjusting nuts 33, and clamping nuts 34. The mounting bolts 31 pass through the parallel elongated holes 21 and the vertical elongated holes 11 sequentially from bottom to top. Nut 32, adjusting nut 33, and clamping nut 34 are all threadedly engaged with mounting bolt 31, respectively engaging with the upper end face of the horizontal end of load-bearing angle iron 2, the lower end face of the extended end of mounting angle iron 1, and the upper end face of the extended end of mounting angle iron 1. Mounting nut 32 engages with mounting bolt 31 to fix the position of mounting bolt 31 and load-bearing angle iron 2. Adjusting nut 33 is responsible for adjusting the height of mounting angle iron 1, thereby controlling the height of prefabricated concrete wall panel 01 and aligning the upper end of prefabricated concrete wall panel 01. The connection system also includes a vertical groove plate 4 vertically connected to the frame 03 and a U-shaped insert plate 5 connected to the frame prefabricated concrete wall panel 01. The vertical groove plate 4 has an upward-facing V-shaped groove 41. The U-shaped insert plate 5 is set downwards, with one end embedded in the lower sides of the back of prefabricated concrete wall panel 01 and the other end vertically inserted into the V-shaped groove 41. The V-shaped groove 41 engages with the end of the U-shaped insert plate 5, ensuring that the prefabricated concrete wall panel 01 is in the accurate position range during initial installation.
[0021] Compared to existing technologies, the U-shaped insert plate 5 provided on the lower back of the prefabricated concrete wall panel 01 of the present invention cooperates with the V-shaped groove 41 on the vertical groove plate 4 connected to the frame 03, which is beneficial for the initial positioning of the prefabricated concrete wall panel 01, thereby simplifying the installation of the prefabricated concrete wall panel 01; the mounting angle iron 1 and the load-bearing angle iron 2 provided on the upper back of the prefabricated concrete wall panel 01 are connected by bolt assembly 3; the vertical elongated hole 11 aligns the outer surface of the prefabricated concrete wall panel 01; the parallel elongated hole 21 makes adjacent prefabricated concrete wall panels 01 close together; the adjusting nut 33 aligns the upper end of the prefabricated concrete wall panel 01; the prefabricated concrete wall panel 01 has adjustment capabilities in two horizontal directions and in the vertical direction.
[0022] The bolt assembly 3 also includes a flat washer 35 that mates with the mounting bolt 31. The flat washer 35 is respectively disposed between the end of the mounting bolt 31 and the lower end face of the horizontal end of the load-bearing angle iron 2, between the upper end face of the horizontal end of the load-bearing angle iron 2 and the lower end face of the mounting nut 32, between the upper end face of the adjusting nut 33 and the lower end face of the extended end of the mounting angle iron 1, and between the upper end face of the extended end of the mounting angle iron 1 and the lower end face of the clamping nut 34. The flat washer 35 can increase the effective area of the end of the mounting bolt 31, the mounting nut 32, the adjusting nut 33, and the clamping nut 34, thereby increasing the connection stability of the bolt assembly 3.
[0023] The angle iron 1 and U-shaped insert 5 are installed on the same side of the prefabricated concrete wall panel 01, corresponding vertically and on the same vertical plane, which is beneficial to the installation stability of the prefabricated concrete wall panel 01.
[0024] The prefabricated decorative concrete wall panel and concrete frame structure connection system also includes interlocking protrusions A 61 and B 62; protrusions A 61 and B 62 are respectively set on the edges of two horizontally adjacent concrete wall panels; protrusion A 61 is on the outside and protrusion B 62 is on the inside; the length of protrusion A 61 is greater than the length of protrusion B 62; in this way, horizontally adjacent prefabricated concrete wall panels 01 can be tightly spliced.
[0025] The connection system between the prefabricated decorative concrete wall panel and the concrete frame structure also includes interlocking protrusions C71 and D72; protrusions C71 and D72 are respectively set on the edges of two vertically adjacent concrete wall panels; protrusion C71 is on the outside and protrusion D72 is on the inside; the length of protrusion C71 is greater than the length of protrusion D72; in this way, the vertically adjacent prefabricated concrete wall panels 01 can be tightly spliced.
[0026] The prefabricated decorative concrete wall panel and concrete frame structure connection system also includes a reinforcing angle iron 8; the reinforcing angle iron 8 is set below the vertical groove plate 4 and welded to the frame 03; the reinforcing angle iron 8 can enhance the structural strength of the vertical groove plate 4.
[0027] The load-bearing angle iron 2 runs horizontally through the prefabricated concrete wall panel 01, which can evenly distribute the weight of the prefabricated concrete wall panel 01 onto the frame 03.
[0028] The installation process in this embodiment includes the following steps:
[0029] ①Preparatory work
[0030] Install mounting bolts 31, mounting nuts 32, and adjusting nuts 33 on the load-bearing angle iron 2; the mounting bolts 31 pass through the parallel elongated holes 21 from bottom to top and then engage with the mounting nuts 32 and adjusting nuts 33 through threads; after thread engagement, only a very short threaded section of the mounting bolts 31 is exposed; manufacture the prefabricated concrete wall panel 01, and pre-embed the mounting angle iron 1 and U-shaped insert plate 5 into the back of the prefabricated concrete wall panel 01; manufacture the frame 03, and weld the load-bearing angle iron 2 and vertical groove plate 4 onto the frame 03; connect the frame 03 to the concrete frame structure 02 using chemical bolts or expansion bolts; plan the installation areas of each prefabricated concrete wall panel 01 according to the design drawings;
[0031] ② Assemble prefabricated concrete wall panels 01
[0032] Concrete wall panels are installed sequentially from one end to the other.
[0033] 2.1 Preliminary Positioning
[0034] Erect the prefabricated concrete wall panel 01 with the angle iron 1 on top and the U-shaped insert 5 below; lift the prefabricated concrete wall panel 01 so that the U-shaped insert 5 is higher than the vertical groove plate 4; align the outer end of the U-shaped insert 5 with the V-groove 41 of the vertical groove plate 4; lower the U-shaped insert 5 vertically, and the prefabricated concrete wall panel 01 is guided to gradually become vertical by the structure of the V-groove 41 until the angle iron 1 presses against the load-bearing angle iron 2; insert the end of the mounting bolt 31 into the vertical elongated hole 11; then rotate the mounting nut 32 and the adjusting nut 33 together, so that the mounting nut 32 and the adjusting nut 33 descend close to the load-bearing angle iron 2, so that the threaded end of the mounting bolt 31 exceeds the vertical elongated hole 11 at an appropriate height; install the clamping nut 34 to establish a preliminary connection between the prefabricated concrete wall panel 01 and the frame 03;
[0035] 2.2 Adjust the position of the first prefabricated concrete wall panel 01
[0036] Hoist the prefabricated concrete wall panel 01 to the designed position, and simultaneously rotate the adjusting nut 33 and the mounting nut 32. Then, make the lower end of the mounting nut 32 abut against the upper end of the load-bearing angle iron 2, and the end of the mounting bolt 31 abut against the lower end of the load-bearing angle iron 2, locking the position of the mounting bolt 31 in the parallel elongated hole 21. Then, adjust the vertical height of the prefabricated concrete wall panel 01 so that the upper end of the prefabricated concrete wall panel 01 reaches the designed height. Adjust the adjusting nut 33 so that the upper end of the adjusting nut 33 abuts against the lower end face of the extended part of the mounting angle iron 1. Horizontally push the concrete wall panel being installed so that the outer surface of the concrete wall panel reaches the designed position, and then tighten the clamping nut 34 to lock the position of the mounting bolt 31 in the vertical elongated hole 11.
[0037] 2.3 Installation of subsequent prefabricated concrete wall panels 01
[0038] Repeat step 2.1; the construction workers lift the new prefabricated concrete wall panel 01 and make the new prefabricated concrete wall panel 01 abut against the horizontal end of the adjacent installed prefabricated concrete wall panel 01; protrusion A 61 abuts against the outside of the adjacent protrusion B 62 to achieve close contact. Insert an arm through the gap above the prefabricated concrete wall panel 01, rotate the adjusting nut 33 and the mounting nut 32, then make the lower end of the mounting nut 32 abut against the upper end of the load-bearing angle iron 2, and the end of the mounting bolt 31 abut against the lower end of the load-bearing angle iron 2, locking the position of the mounting bolt 31 in the parallel elongated hole 21; then adjust the vertical height of the new prefabricated concrete wall panel 01 so that the upper ends of the adjacent prefabricated concrete wall panels 01 are aligned; adjust the adjusting nut 33 so that the upper end of the adjusting nut 33 abuts against the lower end face of the extended part of the mounting angle iron 1; push the concrete wall panel being installed horizontally so that the outer surface of the concrete wall panel is aligned with the outer surface of the adjacent concrete wall panel, then tighten the clamping nut 34 to lock the position of the mounting bolt 31 in the vertical elongated hole 11;
[0039] 2.4 Repeat step 2.3 until all the required prefabricated concrete wall panels 01 are installed.
[0040] Example 2: Example 2 is basically the same as Example 1, and the similarities will not be repeated. The difference is that the connection system between the prefabricated decorative concrete wall panel and the concrete frame structure also includes a fixing nut 91, an adjusting bolt 92, and a U-shaped decorative strip 93. The fixing nut 91 is vertically set to correspond to the gap between adjacent prefabricated concrete wall panels 01 and is welded to the frame 03. The adjusting bolt 92 is threadedly engaged with the fixing nut 91, with its head facing outward. The U-shaped decorative strip 93 is horizontally inserted into the gap between adjacent prefabricated concrete wall panels 01. Both sides of the U-shaped decorative strip 93 abut against the edges of the prefabricated concrete wall panels 01. The closed end of the U-shaped decorative strip 93 abuts against the head of the adjusting bolt 92.
[0041] The end of the adjusting bolt 92 can limit the depth of the U-shaped decorative strip 93 inserted into the gap; the end of the adjusting bolt 92 can be adjusted to ensure that the U-shaped decorative strip 93 is inserted into the gap at the appropriate depth, so that it will not be inserted too deeply and enter the frame 03, nor will it be inserted too shallowly and have the end exposed on the outside of the prefabricated concrete wall panel 01.
[0042] The U-shaped decorative strip 93 can be made of stainless steel and has a certain degree of elasticity; when the size of the assembled concrete wall panel increases due to heat, the U-shaped decorative strip 93 can elastically deform to compensate.
[0043] The outer surface of the concrete frame structure 02 is provided with a coating 021; the coating 021 covers the root of the skeleton 03, so that the surface of the concrete frame structure 02 has good resistance to temperature changes, wear, corrosion and erosion.
Claims
1. A connection system between a prefabricated decorative concrete wall panel and a concrete frame structure, comprising mounting angle irons embedded in the upper two sides of the back of the prefabricated concrete wall panel, a frame directly connected to the concrete frame, load-bearing angle irons horizontally arranged on the front of the frame, and bolt assemblies connecting the mounting angle irons and the load-bearing angle irons; characterized in that, The extended end of the mounting angle iron has a vertical elongated hole perpendicular to the prefabricated concrete wall panel; the horizontal end of the load-bearing angle iron has a parallel elongated hole parallel to the prefabricated concrete wall panel; the bolt assembly includes mounting bolts, mounting nuts, adjusting nuts, and clamping nuts; the mounting bolts pass through the parallel elongated holes and the vertical elongated holes sequentially from bottom to top; the mounting nuts, adjusting nuts, and clamping nuts are all threadedly engaged with the mounting bolts and respectively engage with the upper end face of the horizontal end of the load-bearing angle iron, the lower end face of the extended end of the mounting angle iron, and the upper end face of the extended end of the mounting angle iron; the connection system also includes a vertical groove plate vertically connected to the concrete skeleton and a U-shaped insert plate connected to the frame prefabricated concrete wall panel; the vertical groove plate has an upward-facing V-shaped groove; the U-shaped insert plate is positioned downwards, with one end embedded in the lower sides of the back of the prefabricated concrete wall panel and the other end vertically inserted into the V-shaped groove.
2. The prefabricated decorative concrete wall panel and concrete frame structure connection system according to claim 1, characterized in that: The bolt assembly also includes flat washers that mate with the mounting bolts; the flat washers are respectively disposed between the end of the mounting bolt and the lower end face of the horizontal end of the load-bearing angle iron, between the upper end face of the horizontal end of the load-bearing angle iron and the lower end face of the mounting nut, between the upper end face of the adjusting nut and the lower end face of the extended end of the mounting angle iron, and between the upper end face of the extended end of the mounting angle iron and the lower end face of the clamping nut.
3. The prefabricated decorative concrete wall panel and concrete frame structure connection system according to claim 1, characterized in that: Angle irons and U-shaped inserts are installed on the same side of the prefabricated concrete wall panel, corresponding vertically.
4. The prefabricated decorative concrete wall panel and concrete frame structure connection system according to claim 1, characterized in that: It also includes interlocking protrusions A and B; protrusions A and B are respectively set on the edges of two horizontally adjacent concrete wall panels; protrusion A is on the outside and protrusion B is on the inside; the length of protrusion A is greater than the length of protrusion B.
5. The prefabricated decorative concrete wall panel and concrete frame structure connection system according to claim 1, characterized in that: It also includes interlocking protrusions C and D; protrusions C and D are respectively set on the edges of two vertically adjacent concrete wall panels; protrusion C is on the outside and protrusion D is on the inside; the length of protrusion C is greater than the length of protrusion D.
6. The prefabricated decorative concrete wall panel and concrete frame structure connection system according to claim 1, characterized in that: It also includes reinforcing angle iron; the reinforcing angle iron is set below the vertical slot plate and welded to the frame.
7. The prefabricated decorative concrete wall panel and concrete frame structure connection system according to claim 1, characterized in that: It also includes a fixing nut, an adjusting bolt, and a U-shaped decorative strip; the fixing nut is vertically set to correspond to the gap between adjacent prefabricated concrete wall panels and is welded to the frame; the adjusting bolt is threaded to the fixing nut with its head facing outward; the U-shaped decorative strip is horizontally inserted into the gap between adjacent prefabricated concrete wall panels; the two sides of the U-shaped decorative strip abut against the edge of the prefabricated concrete wall panel respectively; the closed end of the U-shaped decorative strip abuts against the head of the adjusting bolt.