Protective unloading construction method for stone storage door

Abstract

The invention discloses a protective unloading construction method for a stone storage door. The protective unloading construction method comprises the following steps that edge covering structures are installed on the two sides of the bottom of the stone storage door; two bottom beams are installed; mounting an inner frame body; mounting an outer frame body; mounting a top beam; the adjustable supporting feet abut against the stone storage door, the whole stone storage door is cut, and an edge sealing component is installed; hoisting transportation is conducted, and the triangular supports are installed. According to the protective unloading construction method for the stone storage door, the stone storage door can be integrally protected in the processes of unloading, transferring and storing of the stone storage door; an edge covering structure, a bottom beam, an inner frame body, an outer frame body, a top beam, an adjustable supporting foot, an edge sealing component, a triangular support and the like used in construction can be quickly mounted and dismounted, potential safety hazards caused by welding work are avoided, all the components can be recycled, and the construction cost is reduced; the side columns and the wall body are limited through the flexible supporting feet, the situation that the wall face is damaged due to hard contact is avoided, and the flexible supporting feet can effectively protect a lintel, a stone hoop, a decoration column and the like.

Description

Technical Field

[0001] The invention relates to a protective disassembly construction method for Shikumen, and belongs to the field of historical protective building repair. Background Art

[0002] Shikumen is a new type of building that combines Western culture and the characteristics of traditional Chinese dwellings. It is a residential building with Chinese characteristics. The old alleys in Shanghai are generally Shikumen buildings. Among them, Shikumen components, as the representative symbol of alley buildings, often need to be protectively disassembled and reused. However, Shikumen itself is at risk of cracking and damage during the disassembly process due to its long construction age, aging materials and low body strength. At present, the main method used is on-site welding of steel frames, cutting steel according to the size of Shikumen, and fixing and supporting Shikumen after welding. Although this method can adapt to Shikumen of different shapes and ensure that Shikumen is not damaged, there are safety risks in on-site cutting and welding of steel, which also increases the construction period and makes the cost too high. Summary of the invention

[0003] In view of the problems of long construction period, high cost and safety risks in the prior art of Shikumen dismantling construction using welded steel frames, the present application provides a protective dismantling construction method for Shikumen, in which the components used are easy to install and disassemble, which can improve the construction efficiency, avoid on-site welding construction, improve safety, and the components can be recycled, which can reduce construction costs.

[0004] In order to solve the above technical problems, the present invention includes the following technical solutions:

[0005] A protective disassembly construction method for Shikumen, comprising the following steps:

[0006] Step 1: Use the edging structure to protect the bottom of the Shikumen on both sides;

[0007] Step 2: Dig out the foundation under the walls on both sides of the Shikumen doorway, and set two bottom beams parallel to each other below the Shikumen, with both ends of the bottom beams extending from both sides of the Shikumen;

[0008] Step 3, installing the inner frame; specifically, installing two frame columns on each bottom beam, installing the bottom frame in the door opening of the Shikumen, the bottom frame is fixedly connected to the four frame columns, and the two frame columns on the same bottom beam are connected by a tie rod to form an inner frame, and the inner frame is provided with adjustable legs facing the Shikumen direction;

[0009] Step 4: Install the outer frame; specifically, install two outer frame side columns on each bottom beam, connect the outer frame side columns with the frame column bolts, and connect the two outer frame side columns on the same side of the Shikumen through a connecting crossbar;

[0010] Step Five: Install the top beam, and fix the two ends of the top beam to the tops of two outer frame columns on the same bottom beam respectively.

[0011] Step Six: Make the adjustable support feet press against the stone gate, cut the whole stone gate, and install edge-sealing members on both sides and above the stone gate.

[0012] Step Seven: Lift and transport the whole stone gate. After the transportation is completed, install triangular supports on both the front and back sides of the stone gate.

[0013] Furthermore, the edge-sealing structure includes several sections of angle steels spliced end to end in sequence, and bottom connecting plates are arranged at positions corresponding to the bottom beam.

[0014] In Step One, an installation seam is cut below the stone gate. One end of the angle steel extends into the installation seam, the angle steel wraps around the bottom corner of the stone gate, and then the bottom connecting plate is fixedly connected to the bottom beam through bolts.

[0015] Furthermore, the adjustable support foot includes a frame body, a threaded sleeve, a lead screw, a nut and a flexible support foot.

[0016] A horizontal through hole is arranged on the frame body, a threaded sleeve is arranged in the horizontal through hole, a lead screw is arranged in the threaded sleeve, both ends of the lead screw extend out of the frame body, a flexible support foot is arranged at one end of the lead screw, and the other end is on the inner or outer frame body through the nut; the lead screw is rotatably connected to the back of the flexible support foot. When the lead screw rotates, it can screw in or out along the threaded sleeve, so as to adjust the distance between the flexible support foot and the stone gate.

[0017] Furthermore, the adjustable support foot further includes a control box, a motor and a pressure sensor; the control box can control the rotation of the motor and drive the lead screw to rotate. The pressure sensor is arranged on the side of the flexible support foot facing the stone gate. The pressure sensor transmits the detected pressure value to the control box, and the control box controls the rotation of the motor according to the set pressure threshold. When the pressure value reaches the set pressure threshold, the motor stops rotating.

[0018] In Step Six, making the adjustable support feet press against the stone gate specifically means that the control box controls the rotation of the motor, and when the pressure value fed back by the pressure sensor reaches the preset value, the motor stops rotating.

[0019] Furthermore, the flexible support foot is an airbag, the pressure sensor is arranged inside the airbag, the pressure sensor is used to measure the air pressure inside the airbag, the airbag is connected to an air pump, and a distance measuring instrument is arranged on the adjustable support foot, and the distance measuring instrument is used to measure the distance between the adjustable support foot and the stone gate.

[0020] The control box collects the distance data of the distance measuring instrument and the air pressure data of the pressure sensor. When the distance data reaches the set value, the air pump is inflated. When the air pressure data reaches the set threshold, the air pump stops inflating.

[0021] Furthermore, the inner frame body includes four frame body columns and a bottom frame. Two frame body columns are arranged on each bottom beam;

[0022] A first bottom beam connecting plate is arranged at the bottom of the frame body column, a first stud is arranged on the upper surface of the bottom beam, and the first bottom beam connecting plate is fixedly connected to the first stud through a bolt;

[0023] The bottom frame includes two horizontally arranged first steel pipes. The two first steel pipes are arranged in parallel and are integrally connected by a second steel pipe. Mounting plates two are arranged at the ends of the first steel pipes, mounting plates one are correspondingly arranged on the sides of the frame body columns, and the mounting plates two and the mounting plates one are spliced through bolts.

[0024] Furthermore, the outer frame body includes four outer frame side columns and several connecting cross bars; two outer frame side columns are arranged on each bottom beam;

[0025] Outer frame side column mounting plates are arranged at both ends of the connecting cross bar, connecting cross bar mounting plates are correspondingly arranged on the outer frame side columns, and the outer frame side column mounting plates and the connecting cross bar mounting plates are fixedly spliced through bolts, so that the two outer frame side columns on the same side of the stone gate are connected into one body through the connecting cross bar;

[0026] A second bottom beam connecting plate is arranged at the bottom of the outer frame side column, and a second stud is arranged on the upper surface of the bottom beam; the second bottom beam connecting plate is fixedly connected to the second stud through a bolt.

[0027] Furthermore, an outer frame side column connecting plate is arranged on the top beam, a top beam connecting plate is arranged at the top of the outer frame side column, and the top beam connecting plate and the top beam connecting plate at the top of the outer frame side column are bolted and fixed.

[0028] Furthermore, in step seven, first remove the top beam and the outer frame body, and then install triangular supports on both the front and back sides of the stone gate.

[0029] Furthermore, the stone gate includes a wall body, a door opening arranged on the wall body, a stone hoop arranged above the door opening, a lintel arranged above the stone hoop, and door jambs arranged on both sides of the door opening;

[0030] A cushion plate is arranged between the adjustable support feet and the door jambs, lintels or stone hoops of the stone gate, and one side of the cushion plate facing the stone gate matches the outer surface of the stone gate.

[0031] Due to the above technical solutions, the present invention has the following advantages and positive effects compared with the prior art: The protective dismantling construction method of the Shikumen provided by the present invention can protect the Shikumen as a whole during the dismantling, transportation and storage of the Shikumen; the edge wrapping structure, bottom beam, inner frame body, outer frame body, top beam, adjustable support feet, edge sealing members, triangular supports, etc. used in the construction can be quickly installed and disassembled, avoiding the safety hazards brought by welding work, and the components can be recycled, reducing the construction cost; the flexible support feet are used to limit the position between the side columns and the wall to avoid damaging the wall surface due to hard contact, and the flexible support feet can also effectively protect the lintel, stone hoop, decorative columns, etc. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a schematic structural diagram of the Shikumen;

[0033] Figure 2 It is an installation schematic diagram of the edge wrapping structure provided by an embodiment of the present invention;

[0034] Figure 3 It is a schematic structural diagram of the edge wrapping structure provided by an embodiment of the present invention;

[0035] Figure 4 It is an installation schematic diagram of the bottom beam provided by an embodiment of the present invention;

[0036] Figure 5 It is a schematic structural diagram of the bottom beam provided by an embodiment of the present invention;

[0037] Figure 6 It is an installation schematic diagram of the inner frame body provided by an embodiment of the present invention;

[0038] Figure 7 It is a schematic structural diagram of the frame body column provided by an embodiment of the present invention;

[0039] Figure 8 It is a schematic structural diagram of the bottom frame provided by an embodiment of the present invention;

[0040] Figure 9 It is a schematic structural diagram of the tie rod provided by an embodiment of the present invention;

[0041] Figure 10 It is a schematic structural diagram of the diagonal brace provided by an embodiment of the present invention;

[0042] Figure 11 It is an installation schematic diagram of the outer frame body provided by an embodiment of the present invention;

[0043] Figure 12 It is a schematic structural diagram of the outer frame side column provided by an embodiment of the present invention;

[0044] Figure 13Schematic diagram of the grid formed by the connecting crossbars provided in an embodiment of the present invention;

[0045] Figure 14 Installation schematic diagram of the top beam provided in an embodiment of the present invention;

[0046] Figure 15 Structural schematic diagram of the top beam provided in an embodiment of the present invention;

[0047] Figure 16 Installation schematic diagram of the edge sealing member and the triangular brace provided in an embodiment of the present invention;

[0048] Figure 17 Structural schematic diagram of the triangular brace provided in an embodiment of the present invention;

[0049] Figure 18 Schematic diagram after the top beam and the outer frame are removed provided in an embodiment of the present invention;

[0050] Figure 19 Structural schematic diagram of the adjustable support foot provided in an embodiment of the present invention;

[0051] Figure 20 For Figure 19 Cross-sectional view along A-A in;

[0052] Figure 21 Control schematic diagram of the adjustable support foot.

[0053] The reference numerals in the figure are as follows:

[0054] 1 - Door opening; 2 - Wall; 3 - Threshold stone; 4 - Door pocket; 5 - Stone hoop; 6 - Lintel;

[0055] 10 - Edge wrapping structure; 11 - Angle steel; 12 - Bottom connecting plate; 13 - First stiffening rib; 14 - Second stiffening rib;

[0056] 20 - Bottom beam; 21 - I-beam; 22 - Rib plate; 23 - Panel; 24 - First stud; 25 - Second stud; 30 - Inner frame; 31 - Frame column; 311 - Bottom beam connecting plate one; 312 - Horizontally extending rod; 313 - Tie rod; 314 - Mounting plate one; 315 - Ear plate one; 316 - Ear plate two; 32 - Bottom frame; 321 - Steel pipe one; 322 - Steel pipe two; 324 Mounting plate two; 324 - Vertically extending rod; 325 Ear plate three; 33 - Tie rod; 34 - Diagonal tie rod;

[0057] 40 - Adjustable support foot; 41 - Outer frame; 42 - Threaded sleeve; 43 - Lead screw; 44 - Nut; 45 - Flexible support foot; 46 - Control box; 47 - Pressure sensor;

[0058] 50 - Outer framework; 51 - Outer framework side column; 511 - Bottom beam connection plate II; 512 - Top beam connection plate; 513 - Cross - connecting rod mounting plate; 514 - Horizontal extension rod; 515 - Tie rod; 52 - Cross - connecting rod; 521 - Outer framework side column mounting plate; 522 - Vertical connecting rod; 53 - Diagonal brace

[0059] 60 - Top beam; 61 - Outer framework side column connection plate; 62 - Lifting lug

[0060] 70 - Edge - sealing member

[0061] 80 - Triangular support Specific implementation mode

[0062] The following further details a protective disassembly construction method for a Shikumen provided by the present invention in conjunction with the accompanying drawings and specific embodiments. In combination with the following description, the advantages and features of the present invention will be clearer. It should be noted that the accompanying drawings are all in a very simplified form and use non - precise scales, only for conveniently and clearly assisting in explaining the purpose of the embodiments of the present invention.

[0063] As Figure 1 shown, the Shikumen includes a wall 2, a door opening 1 provided on the wall 2, a threshold stone 3 provided below the door opening 1, a stone hoop 5 provided above the door opening 1, a lintel 6 provided above the stone hoop 5, and door jambs 4 provided on both sides of the door opening. Since the structure of the Shikumen is complex and damage needs to be prevented, high requirements are put forward for cutting construction.

[0064] The protective disassembly construction method for the Shikumen provided in this embodiment includes the following steps:

[0065] Step 1: As shown in Figure 2 and Figure 3 , protect both sides of the bottom of the Shikumen by using the edge - wrapping structure 10 respectively. The edge - wrapping structure 10 can be welded by multiple sections of angle steel 11. The bottom of the angle steel 11 is supported under the Shikumen, and a cutting seam can be set so that one end of the angle steel 11 extends into the seam to support the bottom of the Shikumen. The edge - wrapping structure 10 includes a bottom connection plate 12, bolt holes are provided on the bottom connection plate 12, a first stiffening rib 13 is provided between the bottom connection plate 12 and the angle steel 11, and a second stiffening rib 14 is provided at the internal angle of the edge - wrapping structure 10.

[0066] Step 2: As shown in Figure 4 and Figure 5As shown in the figure, the foundation under the two side walls 2 on both sides of the door opening 1 is excavated, and two bottom beams 20 are arranged in parallel at intervals below the stone gate. Both ends of the bottom beam 20 extend out from both sides of the stone gate. As an example, the bottom beam 20 is an I-shaped steel beam 21, and a plurality of rib plates 22 are arranged between the upper and lower flange plates. A panel 23 is arranged on the upper surface of the upper flange, and a first stud 24 connected to the inner frame body and a second stud 25 connected to the outer frame body are arranged on the panel 23. The edge wrapping structure 10 can also be fixedly connected to the bottom beam 20, such as arranging a third bolt column or bolt holes on the bottom beam 20. Of course, the bottom beam can also adopt other structural forms as long as it can meet the strength requirements and is convenient for connecting with the inner frame body and the outer frame body.

[0067] Step three, combine Figures 5 to 8 As shown in the figure, install the inner frame body 30; specifically, install two frame body columns 31 on each bottom beam 20 respectively, install a bottom frame 32 in the door opening of the stone gate, and the bottom frame 32 is fixedly connected to the four frame body columns 31. The two frame body columns 31 on the same bottom beam 20 are connected by a tie rod 33 to form the inner frame body 30. The inner frame body 30 is provided with adjustable support feet 40 facing the direction of the stone gate.

[0068] Combine Figures 5 to 8 As shown in the figure, the inner frame body 30 includes four frame body columns 31 and a bottom frame 32, and two frame body columns 31 are arranged on each bottom beam. A first bottom beam connecting plate 311 is arranged at the bottom of the frame body column 31, and the first bottom beam connecting plate 311 is fixedly connected to the first stud 24 by bolts. A number of horizontally extending rods 312 are arranged on the left and right sides of the frame body column 31. An installation plate 314 is arranged at the end of the horizontally extending rod 312 at the bottom facing the door opening position, and a tie rod 313 is arranged at the end of the remaining extending rods. The bottom frame 32 includes two horizontally arranged steel pipes 321, and the steel pipes 321 are connected into a whole by a steel pipe 322 perpendicular to them. Installation plates 324 are arranged at the ends of the steel pipes 321, and the installation plates 324 and the installation plates 314 are spliced by bolts. An ear plate 325 is arranged on the upper surface of the steel pipe 321, and a corresponding ear plate 315 is arranged on the frame body column 31. The ear plate 315 and the ear plate 325 are fixedly connected by an inclined tie rod 34. A vertically extending rod 324 is arranged below the bottom frame 32, and a tie rod is arranged at the bottom end of the vertically extending rod 324. The tie rod passes through below the threshold stone of the stone gate and is fixed to the tie rods of the vertically extending rods on both sides of the threshold stone.

[0069] Combine Figures 6 to 9 As shown in the figure, the tie rod 33 can be a rectangular steel pipe or a channel steel, with a connecting round hole arranged at one end and a waist-shaped hole arranged at the other end, and is respectively fixedly connected to the corresponding tie rods. It should be noted that the tie rods are first installed at the positions where the foundation is excavated at the door opening and the bottom of the threshold stone. The tie rods outside the frame body columns can be installed after the stone gate is cut, or installed by drilling before the wall is cut.

[0070] Combined Figures 6 to 8 、 Figure 10 As shown, the diagonal tie rod 34 is a circular steel pipe, with connecting ear plates provided at both ends. The connecting ear plates are respectively pin-connected and fixed to ear plate one and ear plate three.

[0071] Step Four, combined Figures 11 to 13 As shown, install the outer frame body 50; specifically, install two outer frame side columns 51 on each bottom beam 20 respectively. The outer frame side columns 51 are bolt-connected to the frame body columns 31, and the two outer frame side columns on the same side of the stone gate are connected by connecting cross bars 52 to form the overall outer frame body 50.

[0072] The outer frame body 50 includes four outer frame side columns 51 and several connecting cross bars 52; two outer frame side columns 51 are provided on each bottom beam 20. The main structure of the outer frame side column 51 can adopt a lattice column composed of two channel steels, with a bottom beam connecting plate two 511 provided at the bottom, a top beam connecting plate 512 provided at the top, horizontal extension rods 514 provided on both sides, a tie rod 515 provided at the end of the horizontal extension rod 514, and both ends of the edge-sealing member are respectively fixedly connected to the tie rods 515 on both sides of the stone gate. The bottom beam connecting plate two 511 is fixedly connected to the second stud 525 by bolts. The outer frame side column 51 is provided with an adjustable support foot 40 facing the direction of the stone gate.

[0073] Both ends of the connecting cross bar 52 are provided with outer frame side column mounting plates 521, and the outer frame side column 51 is provided with a connecting cross bar mounting plate 513. The outer frame side column mounting plate 521 and the connecting cross bar mounting plate 513 are spliced and fixed by bolts. Adjacent connecting cross bars 52 can be spliced into a grid structure through vertical connecting rods 522, and the connecting cross bar 52 and the outer frame side column 51 can also be reinforced by diagonal bracing rods 53. The outer frame side column 51 and the connecting cross bar 52 form the outer frame body 50, and the outer frame body 50 is provided with an adjustable support foot 40 facing the direction of the stone gate.

[0074] Step Five, combined Figure 14 and Figure 15 As shown, install the top beam 60. Both ends of the top beam 60 are respectively fixedly connected to the tops of two outer frame side columns 51 on the same bottom beam 60. The top beam 60 is provided with an outer frame side column connecting plate 61, which is bolt-fixed to the top beam connecting plate 512 at the top of the outer frame side column 51. Lifting points are symmetrically arranged on the top beam 60 for use during the hoisting of the stone gate. As an example, the top beam 60 includes an I-shaped steel beam and steel plates welded on the upper and lower surfaces. Of course, the top beam can also adopt other structural forms.

[0075] Step Six, make the adjustable support foot 40 press tightly against the stone gate, cut the whole stone gate, and install edge-sealing members 70 on both sides of the stone gate. The edge-sealing member 70 can be a tie rod, and the stone gate is fixed by the pre-tightening force of the tie rod, so that each part of the stone gate does not undergo relative displacement.

[0076] Step 7: Hoist and transport the entire Shikumen. After the transportation is completed, install triangular supports 80 on both the front and rear sides of the Shikumen to ensure stability during storage.

[0077] It should be noted that the overall structure formed by the edge wrapping structure, bottom beam, outer frame, inner frame, top beam, edge sealing structure, and adjustable support feet can well protect the Shikumen during the cutting and transportation process. During storage, only the bottom beam, inner frame, and triangular supports need to form a support structure, and the top beam and outer frame can be removed and recycled.

[0078] Combined with Figure 6 、 Figure 7 、 Figure 11 、 Figure 12 、 Figure 19 and Figure 20 as shown, the length of the adjustable support foot 40 is adjustable and can be tightened against the Shikumen when the length is extended. A cushion plate can be provided between the adjustable support foot 40 and the Shikumen, especially between the doorframe, lintel, or stone hoop. The side of the cushion plate facing the Shikumen can match the outer surface of the Shikumen. As an example, the adjustable support foot 40 includes a frame body 41, a threaded sleeve 42, a lead screw 43, a nut 44, and a flexible support foot 45. A horizontal through hole is provided on the frame body 41, a threaded sleeve 42 is arranged in the through hole, a lead screw 43 is arranged in the threaded sleeve 42, both ends of the lead screw 43 extend out of the frame body 41, a flexible support foot 45 is arranged at one end of the lead screw 43, and a nut 44 is arranged at the other end. The adjustable support foot 40 can be fixed on the inner frame or outer frame through the nut 44. The lead screw 43 is rotatably connected to the back of the flexible support foot 45. When the lead screw 43 rotates, it screws in and out along the threaded sleeve 42, and the distance between the flexible support foot 45 and the Shikumen can be adjusted.

[0079] Furthermore, combined with Figure 6 、 Figure 7 、 Figure 11 、 Figure 12 、 Figures 19 to 21 as shown, the adjustable support foot 40 further includes a control box 46, a motor (not shown), and a pressure sensor 47. The control box 46 can control the rotation of the motor and drive the lead screw 43 to rotate. The pressure sensor 47 is arranged on the side of the flexible support foot 45 facing the Shikumen. The pressure sensor 47 transmits the detected pressure value to the control box 46. The control box 46 controls the rotation of the motor according to the set pressure threshold. When the pressure value reaches the set pressure threshold, the motor stops rotating.

[0080] In another embodiment, the adjustable support leg 40 includes a support, a hydraulic telescopic device, a control box, a pressure sensor, and a flexible support leg. The control box controls the telescopic movement of the hydraulic telescopic device. The telescopic end of the hydraulic telescopic device is connected to the back of the flexible support leg, and the other end is connected to the support. The support is fixedly connected to the outer frame or the inner frame. The pressure sensor is arranged on the side of the flexible support leg facing the Shikumen. The pressure sensor transmits the detected pressure value to the control box. The control box controls the telescopic movement of the hydraulic telescopic device according to the set pressure threshold. When the pressure value reaches the set pressure threshold, the telescopic movement of the hydraulic telescopic device is locked.

[0081] As an example, the flexible support leg 45 can be a rubber pad, a suction cup, etc. In another embodiment, the flexible support leg 45 is an airbag, and the pressure sensor 47 is arranged inside the airbag. The airbag can better fit the outer shapes of structures such as the lintel 6, the door pocket 4, and the stone hoop 5, avoiding damage to the outer surface of the component. Further, the airbag is connected to an air pump. A rangefinder is arranged on the adjustable support leg 40. The rangefinder is used to detect the distance between the adjustable support leg and the Shikumen. When the set value is reached, the air pump is inflated. When the air pressure reaches the set threshold, the inflation stops.

[0082] The technical features of the above-described embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope described in this specification.

[0083] The above-described embodiments only represent several implementation manners of the present invention. The description is relatively specific and detailed, but it should not be construed as a limitation on the scope of the invention patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several deformations and improvements can still be made, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention patent should be subject to the appended claims.

Claims

1. A protective demolition construction method for Shikumen, characterized in that, The protective dismantling construction method of the Shikumen includes the following steps: Step 1: Protect the two sides at the bottom of the Shikumen by using the edge wrapping structure respectively; Step 2: Excavate the foundation under the walls on both sides of the Shikumen doorway, and arrange two bottom beams in parallel at intervals under the Shikumen. Both ends of the bottom beams extend out from both sides of the Shikumen; Step 3: Install the inner framework; specifically, install two framework columns on each bottom beam respectively, install a bottom frame in the doorway of the Shikumen, and fixedly connect the bottom frame with the four framework columns. The two framework columns on the same bottom beam are connected by a tie rod to form an inner framework. The inner framework is provided with adjustable support feet facing the Shikumen; Step 4: Install the outer framework; specifically, install two outer framework side columns on each bottom beam respectively, bolt-connect the outer framework side columns with the framework columns, and connect the two outer framework side columns on the same side of the Shikumen by a connecting cross bar; Step 5: Install the top beam, and fixedly connect both ends of the top beam with the tops of the two outer framework side columns on the same bottom beam respectively; Step 6: Make the adjustable support feet press tightly against the Shikumen, cut the Shikumen as a whole, and install edge-sealing members on both sides and above the Shikumen; Step 7: Lift and transport the Shikumen as a whole. After the transportation is completed, install triangular supports on the front and back sides of the Shikumen.

2. The protective demolition construction method for Shikumen according to claim 1, characterized in that, The edge wrapping structure includes several sections of angle steel spliced end to end in sequence, and a bottom connecting plate is arranged at the position corresponding to the bottom beam; In Step 1, an installation seam is cut under the Shikumen. One end of the angle steel extends into the installation seam, the angle steel wraps the bottom corner of the Shikumen, and then the bottom connecting plate is fixedly connected with the bottom beam by bolts.

3. The protective demolition construction method for Shikumen according to claim 1, characterized in that, The adjustable support foot includes a framework, a threaded sleeve, a lead screw, a nut and a flexible support foot; A horizontal through hole is arranged on the framework, a threaded sleeve is arranged in the horizontal through hole, a lead screw is arranged in the threaded sleeve, both ends of the lead screw extend out of the framework, a flexible support foot is arranged at one end of the lead screw, and the other end is on the inner framework or the outer framework through the nut; the lead screw is rotatably connected with the back of the flexible support foot. When the lead screw rotates, it can be screwed into or out of the threaded sleeve, so as to adjust the distance between the flexible support foot and the Shikumen.

4. The protective demolition construction method for Shikumen according to claim 3, characterized in that, The adjustable support foot further includes a control box, a motor and a pressure sensor; the control box can control the rotation of the motor and drive the lead screw to rotate. The pressure sensor is arranged on the side of the flexible support foot facing the Shikumen. The pressure sensor transmits the detected pressure value to the control box, and the control box controls the rotation of the motor according to the set pressure threshold. When the pressure value reaches the set pressure threshold, the motor stops rotating; In Step 6, making the adjustable support feet press tightly against the Shikumen specifically means that the control box controls the rotation of the motor, and when the pressure value fed back by the pressure sensor reaches the preset value, the motor stops rotating.

5. The protective demolition construction method for Shikumen according to claim 4, characterized in that, The flexible support foot is an airbag, the pressure sensor is arranged inside the airbag, the pressure sensor is used to measure the air pressure inside the airbag, the airbag is connected to an air pump, and a distance measuring instrument is arranged on the adjustable support foot, and the distance measuring instrument is used to measure the distance between the adjustable support foot and the Shikumen; The control box collects the distance data of the distance measuring instrument and the air pressure data of the pressure sensor. When the distance data reaches the set value, the air pump is inflated, and when the air pressure data reaches the set threshold, the air pump stops inflating.

6. The protective demolition construction method for Shikumen according to claim 1, characterized in that, The inner framework includes four framework columns and a bottom frame, and two framework columns are arranged on each bottom beam; A bottom beam connecting plate one is arranged at the bottom of the frame body column, a first stud is arranged on the upper surface of the bottom beam, and the bottom beam connecting plate one is fixedly connected with the first stud through a bolt; The underframe comprises two horizontally arranged steel pipes one, the two steel pipes one are arranged in parallel and integrally connected by a steel pipe two, a mounting plate two is arranged at the end of the steel pipe one, a mounting plate one is correspondingly arranged at the side of the frame body column, and the mounting plate two and the mounting plate one are spliced by bolts.

7. The protective demolition construction method for Shikumen according to claim 1, characterized in that, The outer frame body comprises four outer frame side columns and a plurality of connecting cross bars; two outer frame side columns are arranged on each bottom beam; Outer frame side column mounting plates are arranged at both ends of the connecting cross bar, corresponding connecting cross bar mounting plates are arranged on the outer frame side columns, and the outer frame side column mounting plates and the connecting cross bar mounting plates are fixedly spliced by bolts, so that the two outer frame side columns on the same side of the stone gate are connected into a whole through the connecting cross bar; A bottom beam connecting plate two is arranged at the bottom of the outer frame side column, and a second stud is arranged on the upper surface of the bottom beam; the bottom beam connecting plate two is fixedly connected with the second stud through a bolt.

8. The protective demolition construction method for Shikumen according to claim 7, characterized in that, An outer frame side column connecting plate is arranged on the top beam, a top beam connecting plate is arranged at the top of the outer frame side column, and the top beam connecting plate and the top beam connecting plate at the top of the outer frame side column are bolt-fixed.

9. The protective demolition construction method for Shikumen according to claim 1, characterized in that, In step seven, first remove the top beam and the outer frame body, and then install triangular supports on both the front and back sides of the stone gate.

10. The protective disassembly construction method of the Shikumen as claimed in claim 1, wherein, The stone gate comprises a wall body, a door opening arranged on the wall body, a stone hoop arranged above the door opening, a lintel arranged above the stone hoop, and door jambs arranged on both sides of the door opening; A cushion plate is arranged between the adjustable support feet and the door jamb, lintel or stone hoop of the stone gate, and one side of the cushion plate facing the stone gate matches the outer surface of the stone gate.

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