Assembled non-destructive demolition device and method for masonry walls of old buildings

Abstract

The present invention discloses an assembled non-destructive demolition device and method for masonry walls of old buildings, and relates to the technical field of wall demolition in the renovation of old buildings. The existing masonry wall demolition method cannot meet the problem of demolition efficiency and masonry brick recovery rate. It includes a support frame and a supporting frame body connected by bolts. The support frame is a rectangular frame formed by connecting a staggered frame main beam and a frame secondary beam. The supporting frame body is an open-top box body composed of a plurality of double-head stopper bottom plates and a single-head stopper bottom plates arranged at intervals, as well as lateral enclosures on both sides. The stops of the plurality of double-head stopper bottom plates can extend into the gap formed after the masonry bricks are removed from the wall unit intervals. Method: The masonry bricks are removed at intervals along the dividing line, and the masonry wall is divided into a plurality of wall units. The assembled non-destructive demolition device is arranged on the outside of the wall unit. The stopper at the bottom of the double-head stopper bottom plate passes through the gap between two adjacent masonry bricks at the bottom of the wall unit. The wall unit is removed and placed in the supporting frame body.

Description

Technical Field

[0001] The present invention relates to the technical field of wall demolition in the reconstruction of old buildings, and in particular to an assembled non-destructive demolition device and method for the masonry walls of old buildings. Background Art

[0002] In recent years, with the change of the policy from "retain and demolish" to "demolition and renovation and retain", the concept of urban renewal has been continuously promoted, and urban development has gradually shifted from large-scale demolition and construction to organic renewal. The repair, renovation and redevelopment of existing old buildings and historical buildings have become the main direction of urban renewal. The masonry bricks of some old buildings are well preserved and can still be recycled and reused, especially masonry bricks with historical protection value. It is often necessary to dismantle the masonry walls without damage and then rebuild them in their original appearance in a different place. Therefore, how to ensure the integrity of masonry bricks is the focus and difficulty of the demolition of old buildings.

[0003] Traditional methods of demolishing masonry walls are generally divided into manual demolition and mechanical demolition. Manual demolition is when workers use heavy hammers to knock down masonry bricks; mechanical demolition is when large machinery is used to push down the entire wall. The characteristics of manual demolition are long construction period, high cost and poor construction safety, but the recovery rate of masonry bricks is high, about 70%; the mechanical demolition method is characterized by a short construction period, but the integrity rate of masonry bricks is low due to the collapse of the wall, and the recovery rate is about 30%. Summary of the invention

[0004] Aiming at the problem that the existing demolition method of masonry walls of old buildings cannot simultaneously meet the requirements of demolition efficiency and masonry brick recovery rate, the purpose of the present invention is to provide an assembled non-destructive demolition device and method for masonry walls of old buildings.

[0005] The technical solution adopted by the present invention to solve the technical problem is: an assembled non-destructive demolition device for the masonry wall of an old building, which comprises:

[0006] A supporting frame, which is a rectangular frame formed by bolting a plurality of frame main beams and a plurality of frame secondary beams arranged in a crisscross pattern;

[0007] The supporting frame includes a double-head bottom plate, a single-head bottom plate and lateral enclosures. The double-head bottom plate is composed of a long strip bottom panel and stops vertically fixed at both ends thereof, and the single-head bottom panel is composed of a long strip bottom panel and a stop vertically fixed at one end thereof. Multiple double-head bottom plates and multiple single-head bottom plates are arranged at intervals along the width direction of the supporting frame, and the width of the bottom panel is equal to the length of the masonry bricks. Two lateral enclosures are arranged on both sides of the supporting frame. The double-head bottom plate, the single-head bottom plate and the lateral enclosures together enclose a box with an open top, which is used to carry the wall units after the masonry wall is split. The double-head bottom plate, the single-head bottom plate and the lateral enclosures are respectively connected to the supporting frame with bolts.

[0008] The assembled non-destructive demolition device for the masonry wall of an old building of the present invention comprises a supporting frame and a supporting frame body connected by bolts. The supporting frame is a rectangular frame formed by bolting staggered frame main beams and frame secondary beams. The supporting frame body is an open-top box body composed of a plurality of double-stop head bottom plates and a single-stop head bottom plates arranged at intervals, as well as lateral enclosures on both sides, and is used for positioning and protecting the wall units after demolition. The stops of the plurality of double-stop head bottom plates can extend into the gap formed after the masonry bricks are removed from the wall units. Moreover, the supporting frame body and the wall units can be fastened and fixed by steel wire ropes, so that the demolished wall units can be stably and reliably fixed to the supporting frame body, thereby realizing the integrity of the wall units. The non-destructive demolition and transportation of the pieces not only improves the demolition construction efficiency of the masonry wall, but also increases the recyclability of the masonry bricks; since the number of double-head bottom plates and single-head bottom plates can be determined according to the width of the wall unit in actual construction, the prefabricated non-destructive demolition device assembled on site can flexibly adapt to the demolition construction of wall units of different widths, thereby improving the applicability of the prefabricated non-destructive demolition device; the non-destructive demolition device of the prefabricated structure is simple and quick to install and dismantle, thereby increasing the reuse rate of each component and reducing the project cost; moreover, since there is no need to introduce large-scale machinery to implement the demolition construction of the masonry wall, the non-destructive demolition construction of the masonry wall is not restricted by the construction site environment, thereby improving the construction efficiency.

[0009] Furthermore, the main beam of the frame includes a cross beam with an "H"-shaped cross section and multiple connecting plates. The length of the cross beam is greater than the width of the wall unit. A side wing plate of the cross beam is provided with multiple positioning holes for bolting the double-head base plate, the multi-head base plate and the lateral enclosure. The multiple connecting plates are vertically and spaced apart between the two wing plates of the cross beam. At least one bolt hole is provided on the connecting plate for bolting the secondary beam of the frame.

[0010] Furthermore, the plurality of positioning holes are arranged at equal intervals along a length extension direction of the crossbeam, and the positioning holes are arranged in at least two rows.

[0011] Furthermore, the cross-section of the frame secondary beam is "H"-shaped, and extended ends are provided at both ends of the web of the frame secondary beam, and a plurality of bolt holes 2 are provided on the extended ends. The frame secondary beam is vertically arranged between two adjacent frame main beams, and is locked and fixed by bolts passing through bolt hole 1 of the connecting plate and bolt hole 2 of the extended end.

[0012] Furthermore, the stopper includes a base plate and at least three stiffening ribs, the base plate is equal in width to the bottom panel, and the height of the base plate is less than the thickness of the masonry bricks, the base plate is vertically fixed to the end of the bottom panel, at least three stiffening ribs are spaced apart on the side of the base plate away from the bottom panel, one side of the stiffening rib is vertically fixed to the base plate, and the other side thereof is vertically fixed to the bottom panel.

[0013] Furthermore, the lateral enclosure includes a base with a "T"-shaped cross-section, and a plurality of stiffening ribs. The plurality of stiffening ribs are arranged on the side of the base away from the bottom panel and are vertically fixed to the two side panels of the base. The horizontal side panels of the base are bolted to the supporting frame, and a plurality of threading holes are arranged at intervals on the top of the vertical side panels of the base, so that the steel wire rope can pass through the wall unit and pass through the threading holes of the vertical side panels on both sides and be fixed.

[0014] Furthermore, the positioning holes at both ends of the cross beam of the frame main beam are located outside the lateral enclosure, and the positioning holes at the ends are used for lifting the assembled non-destructive demolition device.

[0015] In addition, the present invention also provides an assembled non-destructive demolition method for the masonry wall of an old building, the steps are as follows:

[0016] S1: Assemble the assembled non-destructive demolition device for the masonry wall of the old building, place multiple frame main beams in parallel and at equal intervals on a horizontal plane, set multiple frame secondary beams vertically and at intervals between two adjacent frame main beams, align the frame secondary beams with the frame main beams and bolt them to form a support frame; set multiple double-head bottom plates and multiple single-head bottom plates at intervals along the width direction of the support frame and bolt them to the support frame, set two side enclosures on both sides of the support frame and bolt them, and the double-head bottom plates, the single-head bottom plates and the side enclosures together enclose a support frame with an open top; clean the masonry wall to be demolished, divide the masonry wall into several wall units, manually remove the masonry bricks at intervals along the dividing line of the wall unit, and the masonry wall is divided into multiple wall units;

[0017] S2: The assembled non-destructive demolition device for the masonry wall of the old building is vertically set on the outside of the wall unit, and the assembled non-destructive demolition device for the masonry wall of the old building is pushed so that the stopper at the bottom of the double-stopper bottom plate passes through the gap between two adjacent masonry bricks at the bottom of the wall unit. The wall unit is wrapped in the inner cavity of the supporting frame. The steel wire rope passes over the wall unit and is tied and fixed to the supporting frame as a whole. The assembled non-destructive demolition device is slowly laid flat. The entire wall unit is dismantled and placed in the supporting frame. The assembled non-destructive demolition device carrying the wall unit is transported away from the construction site.

[0018] The assembled non-destructive demolition method of the masonry wall of an old building of the present invention comprises the following steps: first, assembling an assembled non-destructive demolition device, determining the number of double-head bottom plates and single-head bottom plates according to the width of the wall unit to be demolished, arranging a plurality of double-head bottom plates and single-head bottom plates at intervals along the width direction of the support frame and bolting them to the support frame, bolting two side enclosures to the two sides of the support frame, so that the double-head bottom plates, the single-head bottom plates and the side enclosures are jointly enclosed into a box with an open top, which is used as a steel formwork for demolishing the wall unit, manually demolishing the masonry bricks at intervals along the dividing line of the masonry wall, splitting the masonry wall into a plurality of wall units, and vertically arranging the assembled non-destructive demolition device. The stopper at the bottom of the double-stopper bottom plate is arranged on the outside of the wall unit, and passes through the gap between two adjacent masonry bricks at the bottom of the wall unit. The steel wire rope passes over the wall unit and is fastened and fixed to the supporting frame. The entire wall unit is dismantled and placed in the supporting frame, laid flat and lifted away from the assembled non-destructive demolition device carrying the wall unit. The assembled non-destructive demolition method of the masonry wall of an old building of the present invention not only improves the demolition construction efficiency of the masonry wall, but also can improve the recycling rate of the masonry bricks; moreover, since there is no need to introduce large-scale machinery to implement the demolition construction of the masonry wall, the demolition construction of the masonry wall is not limited by the construction site environment, which improves the applicability of the assembled non-destructive demolition method.

[0019] Furthermore, the step S2 also includes: after the wall unit is tightly attached to the bottom panel of the supporting frame, the steel wire rope passes over the wall unit, passes through the corresponding threading holes of the two side enclosures and is fixed, so that the removed wall unit is tightly tied and fixed to the supporting frame as a whole.

[0020] Furthermore, step S2 also includes: inserting a lifting rope into a positioning hole of a beam of the supporting frame, slowly pushing down the assembled non-destructive demolition device and the wall unit through mechanical or manual dragging until they are flat, and placing the entire wall unit after demolition in the supporting frame of the assembled non-destructive demolition device and lifting it away from the construction site. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of a support frame in an embodiment of an assembled non-destructive demolition device for masonry walls of old buildings of the present invention;

[0022] Figure 2 It is a schematic structural diagram of a frame main beam of a support frame in one embodiment of the present invention;

[0023] Figure 3 It is a structural schematic diagram of a frame secondary beam of a support frame in one embodiment of the present invention;

[0024] Figure 4 It is a schematic structural diagram of a double-stop bottom plate of a supporting frame body in one embodiment of the present invention;

[0025] Figure 5It is a schematic structural diagram of a single stopper bottom plate of a supporting frame body in one embodiment of the present invention;

[0026] Figure 6 and Figure 7 It is a schematic structural diagram of the lateral enclosure of the supporting frame in one embodiment of the present invention;

[0027] Figure 8 It is a schematic diagram of a double stopper bottom plate and a single stopper bottom plate arranged at intervals and bolted to a supporting frame in one embodiment of the present invention;

[0028] Fig. 9 It is a schematic diagram of two lateral enclosure bolts connected to two sides of a support frame in one embodiment of the present invention;

[0029] Fig.10 A schematic diagram of a masonry wall to be demolished in an embodiment of an assembled non-destructive demolition method for an old building masonry wall of the present invention;

[0030] Fig.11 A schematic diagram of splitting a masonry wall into a plurality of wall units according to an embodiment of the present invention;

[0031] Fig.12 A schematic diagram of a wall unit after being split in one embodiment of the present invention;

[0032] Fig.13 It is a schematic diagram of an assembled non-destructive demolition device according to an embodiment of the present invention being arranged on one side of a wall unit;

[0033] Fig.14 A schematic diagram of a wall unit according to an embodiment of the present invention being wrapped in a cavity of a supporting frame;

[0034] Fig.15 It is a schematic diagram of an assembled non-destructive demolition device and a wall unit being fastened and fixed by steel wire ropes according to an embodiment of the present invention;

[0035] Fig.16 It is a schematic diagram of an assembled non-destructive demolition device and a wall unit after being laid flat according to an embodiment of the present invention.

[0036] The numbers in the figure are as follows:

[0037] Masonry wall 1; wall unit 2; masonry brick 2a; gap 2b; support frame 10; frame main beam 11; cross beam one 111; positioning hole 112; connecting plate 114; bolt hole one 115; frame secondary beam 12; extension end 121; bolt hole two 124; support frame body 20; double-stop bottom plate 24; single-stop bottom plate 25; bottom panel 241; bolt hole three 242; base plate 245; stiffening rib one 246; lateral enclosure 26; base 261; threading hole 262; stiffening rib two 264; bolt hole four 265. DETAILED DESCRIPTION

[0038] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that the drawings are all in very simplified form and use non-precise proportions, which are only used to conveniently and clearly assist in explaining the purpose of the embodiments of the present invention. For the convenience of description, the "upper" and "lower" described below are consistent with the upper and lower directions of the drawings, but this cannot be a limitation of the technical solution of the present invention.

[0039] Example 1

[0040] Combination Figures 1 to 9 The present invention is a non-destructive assembly-type dismantling device for old building masonry walls, which comprises:

[0041] The supporting frame 10 is a rectangular frame formed by bolting a plurality of frame main beams 11 and a plurality of frame secondary beams 12 arranged in a crisscross pattern;

[0042] The supporting frame 20 includes a double-stop head base plate 24, a single-stop head base plate 25 and a lateral enclosure 26. The double-stop head base plate 24 is composed of a long strip bottom panel 241 and stops vertically fixed at both ends thereof. The single-stop head bottom panel 241 is composed of a long strip bottom panel 241 and a stop vertically fixed at one end thereof. Multiple double-stop head base plates 24 and multiple single-stop head base plates 25 are arranged at intervals along the width direction of the supporting frame 10, and the width of the bottom panel 241 is equal to the length of the masonry brick 2a. Two lateral enclosures 26 are arranged on both sides of the supporting frame 10. The double-stop head base plate 24, the single-stop head base plate 25 and the lateral enclosures 26 together enclose a box with an open top, which is used to carry the wall unit 2 after the masonry wall 1 is disassembled. The double-stop head base plate 24, the single-stop head base plate 25 and the lateral enclosures 26 are respectively bolted to the supporting frame 10.

[0043] The assembled non-destructive demolition device for the masonry wall of an old building of the present invention comprises a support frame 10 and a support frame body 20 connected by bolts. The support frame 10 is a rectangular frame formed by bolting staggered frame main beams 11 and frame secondary beams 12. The support frame body 20 is a top open box body composed of a plurality of double-stop bottom plates 24 and a single-stop bottom plate 25 arranged at intervals, as well as lateral enclosures 26 on both sides, and is used to position and protect the wall unit 2 after demolition. The stops of the plurality of double-stop bottom plates 24 can extend into the gap 2b formed after the masonry bricks 2a are removed from the wall unit 2. Moreover, the support frame body 20 and the wall unit 2 can be tied and fixed by steel wire ropes, so that the wall unit 2 after demolition can be stably and reliably fixed to the support frame body 20. Thereby, the whole wall unit 2 can be demolished and transported without damage, which not only improves the demolition construction efficiency of the masonry wall 1, but also improves the recyclability of the masonry bricks 2a. Since the number of double-head bottom plates 24 and single-head bottom plates 25 can be determined according to the width of the wall unit 2 in actual construction, the assembled non-destructive demolition device on site can flexibly adapt to the demolition construction of wall units 2 of different widths, thereby improving the applicability of the assembled non-destructive demolition device. The non-destructive demolition device with assembled structure is simple and quick to install and dismantle, thereby improving the reuse rate of each component and reducing the project cost. Moreover, since there is no need to introduce large-scale machinery to implement the demolition construction of the masonry wall 1, the non-destructive demolition construction of the masonry wall 1 is not restricted by the construction site environment, thereby improving the construction efficiency.

[0044] like Figure 2 As shown, the frame main beam 11 includes a cross beam 111 with an "H"-shaped cross section and a plurality of connecting plates 114. The length of the cross beam 111 is greater than the width of the wall unit 2. A side wing plate of the cross beam 111 is provided with a plurality of positioning holes 112 for bolting the double-stop bottom plate 24, the multi-stop bottom plate and the lateral enclosure 26. The plurality of connecting plates 114 are vertically and spaced between the two wing plates of the cross beam 111. In this embodiment, three connecting plates 114 are respectively provided at the middle and both ends of the cross beam 111. The connecting plate 114 is provided with at least one bolt hole 115 for bolting the frame secondary beam 12. The frame main beam 11 and the frame secondary beam 12 of this embodiment are preferably made of I-beams, but are not limited thereto. Furthermore, multiple positioning holes 112 are arranged at equal intervals along the length extension direction of the cross beam 111, and at least two rows of positioning holes 112 are arranged, so that construction personnel can adjust the installation positions of the double-head base plate 24, the multi-head base plate and the side enclosure 26 according to construction needs. The multiple positioning holes 112 are arranged at equal intervals, which can ensure that the bolt-connected components are subjected to balanced force.

[0045] like Figure 3As shown, the cross section of the frame secondary beam 12 is "H" shaped, and the web of the frame secondary beam 12 is provided with extension ends 121 at both ends, and the extension ends 121 are provided with a plurality of bolt holes 124. The frame secondary beam 12 is vertically arranged between two adjacent frame main beams 11, and is locked and fixed by bolts passing through the bolt holes 115 of the connecting plate 114 and the bolt holes 124 of the extension ends 121. The frame secondary beam 12 is bolted to the frame main beam 11 through the extension ends 121 at both ends of the web, ensuring the flatness of the connection surface of the support frame 10 and the support frame body 20. The frame secondary beam 12 of this embodiment is preferably made of I-beam.

[0046] like Figure 4 and Figure 5 As shown, the stopper includes a base plate 245 and at least three stiffening ribs 246. The base plate 245 is equal in width to the bottom panel 241, and the height of the base plate 245 is less than the thickness of the masonry brick 2a. The base plate 245 is vertically fixed to the end of the bottom panel 241. At least three stiffening ribs 246 are spaced apart on the side of the base plate 245 away from the bottom panel 241. One side of the stiffening rib 246 is vertically fixed to the base plate 245, and the other side thereof is vertically fixed to the bottom panel 241. Furthermore, a plurality of pairs of bolt holes 242 are respectively provided in the middle and both ends of the bottom panel 241, so that the middle and both ends of the bottom panel 241 can be firmly connected to the support frame 10 by bolts, and two pairs of bolt holes 242 are provided at the end of the bottom panel 241 connected with the stop head, one pair of bolt holes 242 is located between two adjacent stiffening ribs 246 of the stop head, and the other pair of bolt holes 242 is located on the inner side of the stop head, so as to further enhance the connection strength between the end of the bottom panel 241 and the stop head and the support frame 10.

[0047] like Figure 6 and Figure 7 As shown, the lateral enclosure 26 includes a base 261 with a "T"-shaped cross-section, and a plurality of stiffening ribs 264. The plurality of stiffening ribs 264 are arranged on the side of the base 261 away from the bottom panel 241, and are vertically fixed to the two side panels of the base 261. The horizontal side panels of the base 261 are bolted to the support frame 10, and a plurality of threading holes 262 are arranged at intervals on the top of the vertical side panels of the base 261, so that the wire rope can pass through the wall unit 2, and pass through the threading holes 262 of the vertical side panels on both sides and be fixed. In this embodiment, every three spaced stiffening ribs 264 are regarded as a group, and the three groups of stiffening ribs are respectively arranged in the middle and both ends of the base 261. A pair of bolt holes 265 are provided between two adjacent stiffening ribs on the horizontal side plate, and another pair of bolt holes 265 with corresponding positions are provided on the other side of the horizontal side plate. The bolt holes 265 of the lateral enclosure 26 correspond to the positions of the positioning holes 112 at the ends of the cross beam 111. The bolts can pass through the bolt holes 265 of the base 261 and the positioning holes 112 of the frame main beam 11, so as to bolt the lateral enclosure 26 to the support frame 10.

[0048] like Fig.15 As shown, the positioning holes 112 at both ends of the cross beam 111 of the frame main beam 11 are located outside the lateral enclosure 26, and the positioning holes 112 at the ends are used for lifting the assembled non-destructive demolition device.

[0049] Example 2

[0050] Combination Figures 1 to 16 The present invention is a method for non-destructive dismantling of masonry walls of old buildings, and the specific steps are as follows:

[0051] S1: Assemble the assembled non-destructive demolition device for the masonry wall of an old building as described in Example 1, such as Figure 1 As shown, three frame main beams 11 are placed in parallel and at equal intervals on a horizontal plane, and the flanges with positioning holes 112 face upwards, and multiple frame secondary beams 12 are vertically and spaced between two adjacent frame main beams 11, and the extended ends 121 of the webs of the frame secondary beams 12 are aligned with the connecting plates 114 of the frame main beams 11 and bolted to form a support frame 10; Figure 8 As shown, a plurality of double stopper bottom plates 24 and a plurality of single stopper bottom plates 25 are arranged at intervals along the width direction of the support frame 10 and are bolted to the support frame 10, as shown in FIG. Fig. 9 As shown, two lateral enclosures 26 are arranged on both sides of the support frame 10, and the side provided with the stiffening rib 246 is away from the bottom plate 241, and the lateral enclosure 26 is bolted to the support frame 10, and the double-stop bottom plate 24, the single-stop bottom plate 25 and the lateral enclosure 26 together enclose a support frame 20 with an open top, which serves as a steel formwork for dismantling the wall unit 2;

[0052] like Fig.10 As shown, the two sides and the bottom of the masonry wall 1 to be demolished are cleaned to reserve enough construction space for the wall demolition construction, such as Fig.11 As shown, the masonry wall 1 is divided into a plurality of wall units 2, and the masonry bricks 2a are manually removed at intervals along the dividing lines of the wall units 2. The masonry wall 1 is divided into a plurality of wall units 2, and installation space is reserved for the assembled non-destructive removal device;

[0053] S2: Fig.13 As shown, the assembled non-destructive demolition device is vertically arranged on the outside of the wall unit 2 by setting up a scaffold or other measures; Fig.14 As shown, the assembled non-destructive removal device is pushed so that the stopper at the bottom of the double stopper bottom plate 24 passes through the gap 2b between two adjacent masonry bricks 2a at the bottom of the wall unit 2, and the wall unit 2 is wrapped in the inner cavity of the support frame 20; Fig.15 As shown, the steel wire rope passes over the wall unit 2 and is tied and fixed to the supporting frame 20 as a whole; Fig.16As shown, the assembled non-destructive demolition device is slowly laid flat, the entire wall unit 2 is removed and placed in the supporting frame 20, and the assembled non-destructive demolition device carrying the wall unit 2 is transported away from the construction site.

[0054] The method for prefabricated non-destructive demolition of masonry walls of old buildings of the present invention comprises the following steps: first, assembling a prefabricated non-destructive demolition device, determining the number of double-head bottom plates 24 and single-head bottom plates 25 according to the width of the wall unit 2 to be demolished, arranging a plurality of double-head bottom plates 24 and single-head bottom plates 25 at intervals along the width direction of the support frame 10 and bolting them to the support frame 10, bolting two side enclosures 26 to both sides of the support frame 10, so that the double-head bottom plates 24, the single-head bottom plates 25 and the side enclosures 26 are jointly enclosed into a box with an open top, which serves as a steel formwork for demolishing the wall unit 2, manually removing masonry bricks 2a at intervals along the dividing line of the masonry wall 1, splitting the masonry wall 1 into a plurality of wall units 2, and performing prefabricated non-destructive demolition. The device is vertically arranged on the outside of the wall unit 2, the stopper at the bottom of the double stopper bottom plate 24 passes through the gap 2b between two adjacent masonry bricks 2a at the bottom of the wall unit 2, the wire rope passes over the wall unit 2 and is fastened and fixed to the supporting frame 20, the entire wall unit 2 is dismantled and placed in the supporting frame 20, laid flat and lifted away from the assembled non-destructive demolition device carrying the wall unit 2, the assembled non-destructive demolition method of the old building masonry wall 1 of the present invention not only improves the demolition construction efficiency of the masonry wall 1, but also can improve the recycling rate of the masonry bricks 2a; moreover, since there is no need to introduce large-scale machinery to implement the demolition construction of the masonry wall 1, the demolition construction of the masonry wall 1 is not limited by the construction site environment, which improves the applicability of the assembled non-destructive demolition method.

[0055] The step S2 also includes: after the wall unit 2 is tightly attached to the bottom panel 241 of the supporting frame 20, the steel wire rope passes over the wall unit 2, passes through the corresponding threading holes 262 of the two side enclosures and is fixed, so that the removed wall unit 2 is tightly fixed to the supporting frame 20 as a whole.

[0056] The step S2 also includes: inserting a lifting rope into the positioning hole 112 of the beam 111 of the support frame 10, and slowly pushing down the assembled non-destructive demolition device and the wall unit 2 until they are flat by mechanical or manual dragging. The entire wall unit 2 after demolition is placed in the supporting frame 20 of the assembled non-destructive demolition device and is lifted away from the construction site.

[0057] The above description is only a description of the preferred embodiments of the present invention, and is not intended to limit the scope of the present invention. Any changes or modifications made by a person skilled in the art in the field of the present invention based on the above disclosure shall fall within the scope of the claims.

Claims

1. An assembled non-destructive demolition device for old building masonry walls. It is characterized in that include: A supporting frame, which is a rectangular frame formed by bolting a plurality of frame main beams and a plurality of frame secondary beams arranged in a crisscross pattern; The supporting frame includes a double-head bottom plate, a single-head bottom plate and lateral enclosures. The double-head bottom plate is composed of a long strip bottom panel and stops vertically fixed at both ends thereof, and the single-head bottom panel is composed of a long strip bottom panel and a stop vertically fixed at one end thereof. Multiple double-head bottom plates and multiple single-head bottom plates are arranged at intervals along the width direction of the supporting frame, and the width of the bottom panel is equal to the length of the masonry bricks. Two lateral enclosures are arranged on both sides of the supporting frame. The double-head bottom plate, the single-head bottom plate and the lateral enclosures together enclose a box with an open top, which is used to carry the wall units after the masonry wall is split. The double-head bottom plate, the single-head bottom plate and the lateral enclosures are respectively connected to the supporting frame with bolts.

2. The assembled non-destructive demolition device for old building masonry walls according to claim 1, Features: The frame main beam includes a cross beam with an "H"-shaped cross section and multiple connecting plates. The length of the cross beam is greater than the width of the wall unit. A side wing plate of the cross beam is provided with multiple positioning holes for bolting the double-head bottom plate, the multi-head bottom plate and the lateral enclosure. The multiple connecting plates are vertically and spaced apart between the two wing plates of the cross beam. At least one bolt hole is provided on the connecting plate for bolting the frame secondary beam.

3. The assembled non-destructive demolition device for old building masonry walls according to claim 2, Features: The plurality of positioning holes are arranged at equal intervals along a length extension direction of the cross beam, and the positioning holes are arranged in at least two rows.

4. The assembled non-destructive demolition device for old building masonry walls according to claim 2, Features: The cross-section of the frame secondary beam is "H"-shaped, and the two ends of the web of the frame secondary beam are provided with extended ends, and a plurality of bolt holes 2 are provided on the extended ends. The frame secondary beam is vertically arranged between two adjacent frame main beams, and is locked and fixed by bolts passing through the bolt hole 1 of the connecting plate and the bolt hole 2 of the extended end.

5. The assembled non-destructive demolition device for old building masonry walls according to claim 1, Features: The stopper includes a base plate and at least three stiffening ribs. The base plate has the same width as the bottom panel and a height less than the thickness of the masonry bricks. The base plate is vertically fixed to the end of the bottom panel. At least three stiffening ribs are spaced apart on a side of the base plate away from the bottom panel. One side of the stiffening rib is vertically fixed to the base plate and the other side is vertically fixed to the bottom panel.

6. The assembled non-destructive demolition device for old building masonry walls according to claim 1, Features: The lateral enclosure includes a base with a "T"-shaped cross-section, and a plurality of stiffening ribs. The plurality of stiffening ribs are arranged on the side of the base away from the bottom panel and are vertically fixed to the two side panels of the base. The horizontal side panels of the base are bolted to the supporting frame, and a plurality of threading holes are arranged at intervals on the top of the vertical side panels of the base, so that the wire rope can pass through the wall unit and pass through the threading holes of the vertical side panels on both sides and be fixed.

7. The assembled non-destructive demolition device for old building masonry walls according to claim 2, Features: The positioning holes at both ends of the cross beam of the frame main beam are located outside the lateral enclosure, and the positioning holes at the ends are used for lifting the assembled non-destructive demolition device.

8. A method for non-destructive dismantling of masonry walls of old buildings. It is characterized in that Here are the steps: S1: Assemble the assembled non-destructive demolition device for the masonry wall of an old building as described in any one of claims 1 to 7, place multiple frame main beams in parallel and at equal intervals on a horizontal plane, set multiple frame secondary beams vertically and at intervals between two adjacent frame main beams, align the frame secondary beams with the frame main beams and bolt them to form a support frame; set multiple double-head bottom plates and multiple single-head bottom plates at intervals along the width direction of the support frame and bolt them to the support frame, two lateral enclosures are set on both sides of the support frame and bolted thereto, and the double-head bottom plates, the single-head bottom plates and the lateral enclosures together enclose a support frame with an open top; clean the masonry wall to be demolished, divide the masonry wall into a number of wall units, manually remove the masonry bricks at intervals along the dividing line of the wall units, and the masonry wall is divided into a number of wall units; S2: The assembled non-destructive demolition device for the masonry wall of the old building is vertically set on the outside of the wall unit, and the assembled non-destructive demolition device for the masonry wall of the old building is pushed so that the stopper at the bottom of the double-stopper bottom plate passes through the gap between two adjacent masonry bricks at the bottom of the wall unit. The wall unit is wrapped in the inner cavity of the supporting frame. The steel wire rope passes over the wall unit and is tied and fixed to the supporting frame as a whole. The assembled non-destructive demolition device is slowly laid flat. The entire wall unit is dismantled and placed in the supporting frame. The assembled non-destructive demolition device carrying the wall unit is transported away from the construction site.

9. The assembled non-destructive demolition method for old building masonry walls according to claim 8, It is characterized in that The step S2 also includes: after the wall unit is closely attached to the bottom panel of the supporting frame, the steel wire rope passes over the wall unit, passes through the corresponding threading holes of the two side enclosures and is fixed, so that the removed wall unit is tightly tied and fixed to the supporting frame as a whole.

10. The assembled non-destructive demolition method for old building masonry walls according to claim 8, It is characterized in that The step S2 also includes: inserting a lifting rope into a positioning hole of a beam of the support frame, slowly pushing down the assembled non-destructive demolition device and the wall unit by mechanical or manual dragging until they are flat, and placing the entire wall unit after demolition in the supporting frame of the assembled non-destructive demolition device and lifting it away from the construction site.

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