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

Abstract

The fixed non-destructive demolition device and method for the masonry wall of an old building of the present invention relate to the technical field of wall demolition for the renovation of old buildings. The problem that the existing device and method for demolition of masonry walls of old buildings cannot meet the requirements of demolition efficiency and masonry brick recovery rate is addressed. It comprises: a support frame, which is a frame body formed by welding and connecting steel sections arranged in a criss-cross pattern; a supporting box body, comprising a bottom plate, a pair of side baffles vertically fixed to both sides of the bottom plate, a top baffle plate and a bottom support plate vertically fixed to both ends of the bottom plate, respectively, and the bottom support plate is composed of a plurality of brackets arranged at intervals, and the spacing between the brackets and two adjacent brackets is equal to the width of the masonry brick. Method: The masonry wall is split into a plurality of wall units, and the fixed non-destructive demolition device is vertically arranged on the outside of the wall unit, and a plurality of brackets pass through the gap between two adjacent masonry bricks at the bottom of the wall unit. The steel wire rope fixes the wall unit and the supporting box body as a whole, and the wall unit is removed as a whole and placed in the supporting box 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 a fixed non-destructive demolition device and method for the masonry walls of old buildings. Background Art

[0002] In recent years, the concept of urban renewal has been continuously promoted, and urban development has gradually shifted from large-scale demolition and reconstruction 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] The present invention aims to provide a fixed non-destructive demolition device and method for the masonry wall of an old building, which is aimed at the problem that the existing demolition device and method for the masonry wall of an old building cannot simultaneously meet the requirements of demolition construction efficiency and masonry brick recovery rate.

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

[0006] The supporting frame is a rectangular frame formed by welding and connecting steel sections arranged in a crisscross pattern;

[0007] The supporting box is a rectangular box with an open top and matching the size of the supporting frame. It includes a bottom plate, a pair of side baffles arranged along the length direction of the bottom plate and vertically fixed to both sides of the bottom plate, a top baffle arranged along the width direction of the bottom plate and vertically fixed to the top of the bottom plate, and a bottom support plate vertically fixed to the bottom end of the bottom plate. The bottom support plate is composed of a plurality of brackets arranged at intervals, and the width of the bracket and the spacing between two adjacent brackets are equal to the length of the masonry bricks. The supporting box is fixed to one side of the supporting frame, and is used to place the wall units after the masonry wall is split.

[0008] The fixed non-destructive demolition device for the masonry wall of an old building of the present invention comprises a connected support frame and a supporting box body, the supporting box body is a rectangular box body with an open top surface, and is used to place the wall unit after the masonry wall is split, the support frame is a rectangular frame body welded by a steel material, and is used to support the supporting box body and the wall unit placed therein, and the frame formed by the two side baffles, the top baffle and the bottom support plate of the supporting box body is used to position and protect the split wall unit, and the bottom support plate is composed of a plurality of brackets arranged at intervals, and the plurality of brackets can extend into the gap formed after the masonry bricks are removed from the wall unit intervals. Moreover, the supporting box and the wall unit placed in the supporting box can be fixed by binding with steel wire ropes, so that the wall unit can be stably and reliably fixed to the supporting box, thereby realizing the whole piece of non-destructive demolition and transportation of the wall unit, which not only improves the demolition construction efficiency of the masonry wall, but also improves the recycling rate of masonry bricks; the fixed non-destructive demolition device has a simple structure and is easy to assemble, and each component can be reused, which reduces the project cost; moreover, since there is no need to introduce large-scale machinery to implement the demolition construction of the masonry wall, the fixed non-destructive demolition device is easy and quick to operate, is not restricted by the construction site environment, and has stronger applicability.

[0009] Furthermore, the two side baffles are provided with at least two rows of through holes with corresponding positions and numbers along their length direction, and the steel wire rope can pass over the wall unit, through the corresponding through holes of the two side baffles and be fixed.

[0010] Furthermore, the spacing between each row of through holes on the side baffle is equal.

[0011] Furthermore, it also includes multiple card slots, the positions and numbers of the multiple card slots correspond to the bracket, the cross-section of the card slot is L-shaped, the horizontal side panels of the card slot are fixed to the bracket, the vertical side panels of the card slot are parallel to the bottom plate of the supporting box, and the height of the vertical side panels is less than the thickness of the masonry bricks.

[0012] Furthermore, it also includes at least one pair of lifting ears connected to the top of the supporting frame.

[0013] In addition, the present invention also provides a fixed non-destructive demolition method for old building masonry walls, the steps are as follows:

[0014] S1: Assembling a fixed non-destructive demolition device for the masonry wall of an old building, dividing the masonry wall into a plurality of wall units according to the plane size of the fixed non-destructive demolition device, so that each wall unit can be placed in a supporting box of the fixed non-destructive demolition device, pre-treating the masonry wall, manually removing masonry bricks at intervals along the dividing line of the wall unit, and reserving the installation space of the fixed non-destructive demolition device, the masonry wall is divided into a plurality of wall units;

[0015] S2: The fixed non-destructive demolition device is vertically arranged on the outside of the wall unit, and the fixed non-destructive demolition device is pushed so that the multiple brackets of the bottom support plate pass through the gap between two adjacent masonry bricks at the bottom of the wall unit. After the wall unit is attached to the bottom plate of the supporting box, the steel wire rope passes over the wall unit and is tied and fixed to the supporting box as a whole. The fixed non-destructive demolition device is pushed down, the entire wall unit is dismantled and placed in the supporting box, and the fixed non-destructive demolition device carrying the wall unit is laid flat and transported away from the construction site.

[0016] The fixed non-destructive demolition method for the masonry wall of an old building of the present invention comprises the following steps: first, the masonry bricks are manually removed at intervals along the dividing line of the masonry wall to split the masonry wall into a plurality of wall units, and a fixed non-destructive demolition device is vertically arranged on the outside of the wall unit, and a plurality of brackets of the bottom support plate pass through the gap between two adjacent masonry bricks at the bottom of the wall unit, and a steel wire rope passes over the wall unit and is tied and fixed to a supporting box as a whole, and the entire wall unit is removed and placed in the supporting box, which is then laid flat and lifted away from the fixed non-destructive demolition device carrying the wall unit. The fixed non-destructive demolition method for the masonry wall of an old building of the present invention not only improves the demolition construction efficiency of the masonry wall, but also improves the recyclability 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 restricted by the construction site environment, thereby improving the applicability of the fixed non-destructive demolition method.

[0017] Furthermore, step S2 also includes: after the multiple brackets of the bottom support plate pass through the gap between two adjacent masonry bricks at the bottom of the wall unit, the wooden strips are horizontally arranged and snapped into the slots connected to the brackets, so that the bottom of the wall unit is fastened to the supporting box.

[0018] Furthermore, the step S2 also includes: after the wall unit is tightly attached to the bottom plate of the supporting box, the steel wire rope passes over the wall unit, passes through the corresponding through holes of the two side baffles and is fixed, so as to bundle the removed wall unit and the supporting box into one.

[0019] Furthermore, the step S2 also includes: inserting a lifting rope into a pair of lifting ears at the top of the support frame, slowly pushing down the fixed non-destructive demolition device and the wall unit until they are laid flat and lifted away from the construction site. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of a fixed non-destructive demolition device for old building masonry walls according to an embodiment of the present invention;

[0021] Figure 2 It is a schematic diagram of a masonry wall before demolition in one embodiment of the present invention;

[0022] Figure 3 A schematic diagram of splitting a masonry wall into a plurality of wall units according to an embodiment of the present invention;

[0023] Figure 4 is a schematic diagram of a wall unit in one embodiment of the present invention;

[0024] Figure 5 It is a schematic diagram of a fixed non-destructive demolition device installed on one side of a wall unit according to an embodiment of the present invention;

[0025] Figure 6 It is a schematic diagram of a wooden strip buckled into a slot at the bottom of a wall unit according to an embodiment of the present invention;

[0026] Figure 7 It is a schematic diagram of a wall unit according to an embodiment of the present invention being fixed to a fixed non-destructive demolition device via a steel wire rope;

[0027] Figure 8 It is a schematic diagram of a wall unit and a fixed non-destructive demolition device laid flat according to an embodiment of the present invention.

[0028] The numbers in the figure are as follows:

[0029] Masonry wall 1; wall unit 2; masonry brick 2a; gap 2b; support frame 10; lifting lug 11; supporting box 20; bottom plate 21; side baffle 22; through hole 23; top baffle 24; bracket 25; slot 26; wire rope 28; wooden strip 30;. DETAILED DESCRIPTION

[0030] 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.

[0031] Example 1

[0032] Combination Figures 1 to 8 The fixed non-destructive demolition device for old building masonry walls of the present invention is described, and it comprises:

[0033] The support frame 10 is a rectangular frame formed by welding and connecting steel sections arranged in a crisscross pattern. The support frame 10 of this embodiment is a rectangular frame formed by welding square steel pipes;

[0034] The supporting box 20 is a rectangular box with an open top and matching the size of the supporting frame 10. It includes a bottom plate 21, a pair of side baffles 22 arranged along the length direction of the bottom plate 21 and vertically fixed to both sides of the bottom plate 21, a top baffle 24 arranged along the width direction of the bottom plate 21 and vertically fixed to the top of the bottom plate 21, and a bottom support plate vertically fixed to the bottom end of the bottom plate 21, and the bottom support plate is composed of a plurality of spaced brackets 25, the width of the bracket 25 and the spacing between two adjacent brackets 25 are equal to the length of the masonry brick 2a. The supporting box 20 is fixed to one side of the supporting frame 10, and is used to place the wall unit 2 after the masonry wall 1 is split.

[0035] The fixed non-destructive demolition device for the masonry wall of an old building of the present invention comprises a connected support frame 10 and a supporting box 20. The supporting box 20 is a rectangular box with an open top surface, which is used to place the wall unit 2 after the masonry wall 1 is split. The support frame 10 is a rectangular frame welded by a steel material, which is used to support the supporting box 20 and the wall unit 2 placed therein. The frame formed by the two side baffles 22, the top baffle 24 and the bottom support plate of the supporting box 20 is used to position and protect the split wall unit 2. The bottom support plate is composed of a plurality of brackets 25 arranged at intervals. The plurality of brackets 25 can extend into the wall unit 2 to form a wall after the masonry bricks 2a are removed at intervals. Moreover, the supporting box 20 and the wall unit 2 placed in the supporting box 20 can be tied and fixed by the wire rope 28, so that the wall unit 2 can be stably and reliably fixed to the supporting box 20, thereby realizing the whole piece of non-destructive demolition and transportation of the wall unit 2, which not only improves the demolition construction efficiency of the masonry wall 1, but also improves the recyclability of the masonry bricks 2a; the fixed non-destructive demolition device has a simple structure and is easy to assemble, and each component can be reused, which reduces the project cost; and since there is no need to introduce large-scale machinery to implement the demolition construction of the masonry wall 1, the fixed non-destructive demolition device is easy and quick to operate, is not restricted by the construction site environment, and has stronger applicability.

[0036] like Figure 1 As shown, the two side baffles 22 are provided with at least two rows of through holes 23 with corresponding positions and numbers along their length direction, and the steel wire rope 28 can pass over the wall unit 2, pass through the corresponding through holes 23 of the two side baffles 22 and be fixed, and the steel wire rope 28 plays the role of fixing the wall unit 2 in the supporting box 20 to prevent the wall unit 2 from collapsing. The arrangement of multiple rows of through holes 23 facilitates the construction workers to adjust the installation position of the steel wire rope 28 according to the thickness of the wall unit 2. Furthermore, the spacing of each row of through holes 23 on the side baffles 22 is equal, ensuring that the wall unit 2 after being tied by the steel wire rope 28 is evenly stressed.

[0037] Please continue to refer to Figure 1The fixed non-destructive demolition device for the masonry wall of an old building of the present invention further includes a plurality of card slots 26. The positions and numbers of the plurality of card slots 26 correspond to the brackets 25. The cross-section of the card slots 26 is L-shaped. The horizontal side panels of the card slots 26 are fixed to the brackets 25. The vertical side panels of the card slots 26 are parallel to the bottom panel 21 of the supporting box 20. The height of the vertical side panels is less than the thickness of the masonry bricks 2a. After the wall unit 2 is attached to the supporting box 20, the card slots 26 pass through the gaps 2b between adjacent masonry bricks 2a and are exposed outside the wall unit 2, so that the construction personnel can place the wooden strips 30 horizontally in the card slots 26 to fasten the bottom of the wall unit 2 to the supporting box 20, thereby improving the stability of the connection between the wall unit 2 and the supporting box 20.

[0038] In addition, the fixed non-destructive demolition device for old building masonry walls of the present invention further includes at least one pair of lifting ears 11 connected to the top of the support frame 10, which is used to lift and transport the fixed non-destructive demolition device.

[0039] Example 2

[0040] Combination Figures 1 to 8 The fixed non-destructive demolition method of the old building masonry wall of the present invention is described, and the specific steps are as follows:

[0041] S1: Assemble as Figure 1 The fixed non-destructive demolition device for the masonry wall of an old building shown in FIG. Figure 2 and Figure 3 As shown, according to the plane size of the fixed non-destructive demolition device, the masonry wall 1 is divided into a plurality of wall units 2, so that each wall unit 2 can be placed in the supporting box 20 of the fixed non-destructive demolition device, the masonry wall 1 is pre-processed, and the masonry bricks 2a are manually removed at intervals along the dividing line of the wall unit 2, and the installation space of the fixed non-destructive demolition device is reserved, as shown in FIG. Figure 3 and Figure 4 As shown, the masonry wall 1 is divided into a plurality of wall units 2;

[0042] S2: Figure 5 As shown, by setting up a scaffold or other measures, the fixed non-destructive demolition device is vertically set on the outside of the wall unit 2, and the fixed non-destructive demolition device is pushed so that the multiple brackets 25 of the bottom support plate pass through the gap 2b between two adjacent masonry bricks 2a at the bottom of the wall unit 2. After the wall unit 2 is attached to the bottom plate 21 of the supporting box 20, the wire rope 28 passes over the wall unit 2 and is tied and fixed to the supporting box 20 as a whole, as shown in FIG. Figure 8 As shown, the fixed non-destructive demolition device is slowly pushed down, the entire wall unit 2 is removed and placed in the supporting box 20, the fixed non-destructive demolition device carrying the wall unit 2 is laid flat and placed on a horizontal plane, and the fixed non-destructive demolition device and the removed wall unit 2 are transported away from the construction site by a crane.

[0043] The fixed non-destructive demolition method for the masonry wall of an old building of the present invention comprises the following steps: first, the masonry bricks 2a are manually removed at intervals along the dividing line of the masonry wall 1, the masonry wall 1 is split into a plurality of wall units 2, a fixed non-destructive demolition device is vertically arranged on the outside of the wall unit 2, a plurality of brackets 25 of the bottom support plate pass through the gap 2b between two adjacent masonry bricks 2a at the bottom of the wall unit 2, a steel wire rope 28 passes over the wall unit 2 and is tied and fixed to a supporting box 20 as a whole, the entire wall unit 2 is removed and placed in the supporting box 20, laid flat and lifted away from the fixed non-destructive demolition device carrying the wall unit 2, the fixed non-destructive demolition method for the masonry wall of an old building of the present invention not only improves the demolition construction efficiency of the masonry wall 1, but also improves the recyclability 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 restricted by the construction site environment, thereby improving the applicability of the fixed non-destructive demolition method.

[0044] like Figure 6 As shown, step S2 also includes: after the multiple brackets 25 of the bottom support plate pass through the gap 2b between two adjacent masonry bricks 2a at the bottom of the wall unit 2, the wooden strips 30 are horizontally arranged and snapped into the slots 26 connected to the brackets 25, so that the bottom of the wall unit 2 is fastened to the supporting box 20, thereby improving the stability of the connection between the wall unit 2 and the supporting box 20.

[0045] like Figure 7 As shown, the step S2 also includes: after the wall unit 2 is tightly attached to the bottom plate 21 of the supporting box 20, the steel wire rope 28 passes over the wall unit 2, and passes through the corresponding through holes 23 of the two side baffles 22 and is fixed, thereby bundling the dismantled wall unit 2 and the supporting box 20 together to prevent the wall unit 2 from collapsing and ensure construction safety.

[0046] The step S2 also includes: inserting a lifting rope into the lifting ear 11 at the top of the support frame 10, slowly pushing down the fixed non-destructive demolition device and the wall unit 2 until they are flat by mechanical or manual dragging, and placing the entire wall unit 2 after demolition in the supporting box 20 and lifting it away from the construction site.

[0047] 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. A fixed non-destructive demolition device for old building masonry walls. It is characterized in that include: The supporting frame is a rectangular frame formed by welding and connecting steel sections arranged in a crisscross pattern; The supporting box is a rectangular box with an open top surface and matching the size of the supporting frame, comprising a bottom plate, a pair of side baffles arranged along the length direction of the bottom plate and vertically fixed to both sides of the bottom plate, a top baffle arranged along the width direction of the bottom plate and vertically fixed to the top of the bottom plate, and a bottom support plate vertically fixed to the bottom end of the bottom plate, and the bottom support plate is composed of a plurality of brackets arranged at intervals, the width of the bracket and the spacing between two adjacent brackets are equal to the length of the masonry bricks, the supporting box is fixed to one side of the supporting frame, and is used to place the wall unit after the masonry wall is split; The two side baffles are provided with at least two rows of through holes with corresponding positions and numbers along their length direction, and the steel wire rope can pass through the wall unit, pass through the corresponding through holes of the two side baffles and be fixed; It also includes a plurality of slots, the positions and numbers of which correspond to the brackets, the cross-section of the slots is L-shaped, the horizontal side panels of the slots are fixed to the brackets, the vertical side panels of the slots are parallel to the bottom panel of the supporting box, and the height of the vertical side panels is less than the thickness of the masonry bricks, and the wooden strips are horizontally placed in the slots to fasten the bottom of the wall unit to the supporting box.

2. The fixed non-destructive demolition device for old building masonry walls according to claim 1, Features: The spacing between each row of through holes on the side baffle is equal.

3. The fixed non-destructive demolition device for old building masonry walls according to claim 1, Features: It also includes at least one pair of lifting ears connected to the top of the supporting frame.

4. A fixed non-destructive demolition method for old building masonry walls. It is characterized in that Here are the steps: S1: Assemble the fixed non-destructive demolition device for the masonry wall of an old building as described in any one of claims 1 to 3, divide the masonry wall into a plurality of wall units according to the plane size of the fixed non-destructive demolition device, so that each wall unit can be placed in the supporting box of the fixed non-destructive demolition device, pre-treat the masonry wall, manually remove the masonry bricks at intervals along the dividing line of the wall unit, and reserve the installation space of the fixed non-destructive demolition device, and the masonry wall is divided into a plurality of wall units; S2: The fixed non-destructive demolition device is vertically arranged on the outside of the wall unit, and the fixed non-destructive demolition device is pushed so that the multiple brackets of the bottom support plate pass through the gap between two adjacent masonry bricks at the bottom of the wall unit. After the wall unit is attached to the bottom plate of the supporting box, the steel wire rope passes over the wall unit and is tied and fixed to the supporting box as a whole. The fixed non-destructive demolition device is pushed down, the entire wall unit is dismantled and placed in the supporting box, and the fixed non-destructive demolition device carrying the wall unit is laid flat and transported away from the construction site.

5. The fixed non-destructive demolition method for old building masonry walls according to claim 4, It is characterized in that The step S2 also includes: after the multiple brackets of the bottom support plate pass through the gap between two adjacent masonry bricks at the bottom of the wall unit, the wooden strips are horizontally arranged and snapped into the slots connected to the brackets, so that the bottom of the wall unit is fastened to the supporting box.

6. The fixed non-destructive demolition method for old building masonry walls according to claim 4, It is characterized in that The step S2 also includes: after the wall unit is closely attached to the bottom plate of the supporting box, the steel wire rope passes over the wall unit, passes through the corresponding through holes of the two side baffles and is fixed, so as to bundle the removed wall unit and the supporting box into one.

7. The fixed non-destructive demolition method for old building masonry walls according to claim 4, It is characterized in that The step S2 also includes: inserting a lifting rope into the lifting ear at the top of the support frame, slowly pushing down the fixed non-destructive demolition device and the wall unit until they are flat and lifted away from the construction site.

Images