Protective demolition structure for existing building masonry infilled wall

Abstract

The utility model provides an existing building masonry infilled wall protective dismantling structure which comprises a suspended ceiling, infilled walls and a frame beam, the infilled walls are arranged on the two sides of the suspended ceiling, and the suspended ceiling is located on the lower portion of the frame beam. The utility model has the advantages that the channel steel cross beam, the angle steel bracket, the channel steel buttress, the suspender, the tapered end channel steel and the tapered end nut are arranged in a matched manner, and the double-spliced channel steel cross beam is matched with the angle steel bracket and the channel steel buttress, so that a powerful supporting system is provided for the infilled wall. The structure can effectively guarantee the stability of the remaining wall body and the suspended ceiling structure, and the suspended ceiling is prevented from being damaged in the wall body dismantling process. By arranging the suspenders, the lock head channel steel and the lock head nuts, the span of the double-spliced channel steel cross beam can be effectively reduced, the safety of the wall body is ensured, and the protective construction mode can effectively avoid damage and loss to the suspended ceiling caused by dismantling work. In this way, protective dismantling of the infilled wall can be achieved on the premise that the safety of the suspended ceiling is not affected, and the problems existing in the prior art are effectively solved.

Description

Technical Field

[0001] The utility model relates to the technical field of existing building reconstruction, in particular to a protective demolition structure of a masonry filling wall of an existing building. Background Art

[0002] my country has a large stock of existing buildings. Under the current development model of the "dual carbon" economy, improving the functional facilities and livability of existing buildings through renovation is a major development direction of the current construction industry. Green construction is a key link in achieving resource conservation and energy conservation and emission reduction in the construction field. Demolition and construction are the two major stages of existing building renovation. In the renovation of existing buildings, combining demolition and construction is an important measure to achieve green construction.

[0003] When renovating existing buildings, the removal of protective filling walls is generally a destructive removal, and components such as the suspended ceiling connected to the wall will also be damaged. How to achieve protective removal of protective filling walls without affecting the safety of the suspended ceiling is a technical problem in the current renovation of existing buildings. Utility Model Content

[0004] The purpose of the present invention is to solve at least one of the above technical deficiencies.

[0005] Therefore, one purpose of the utility model is to provide a protective demolition structure of an existing building masonry filling wall to solve the problems mentioned in the background technology and overcome the shortcomings of the prior art.

[0006] In order to achieve the above-mentioned purpose, an embodiment of the utility model provides a protective demolition structure of an existing building masonry filling wall, comprising a suspended ceiling, a protective filling wall, and a frame beam, wherein suspended ceilings are arranged on both sides of the protective filling wall, and the suspended ceilings are located at the lower part of the frame beam;

[0007] The protective filling wall corresponds to a horizontal groove below the bottom line of the suspended ceiling, and a double-jointed channel steel beam is inserted into the groove and tightly plugged with a triangular wooden wedge, and the gap between the upper part of the channel steel beam and the protective filling wall is filled with mortar;

[0008] An angle steel bracket is installed at one end of the protective filling wall, and a vertical groove is chiseled and a channel steel buttress column is installed at the other end;

[0009] The two ends of the channel steel beam are fixedly connected to the angle steel bracket and the channel steel buttress column;

[0010] A vertical suspension rod is installed in the frame beam, and the bottom end of the suspension rod is connected to a locking channel steel through a locking nut;

[0011] Both sides of the lock channel steel are welded to the channel steel crossbeam.

[0012] Preferably, any of the above schemes has a U-shaped cross-section, two of the channel steel beams form a group and are joined back to back, and the height of the chiseled groove of the protective filling wall is 170 mm.

[0013] The above technical solution is adopted: when the end of the channel steel beam is a concrete frame column, an angle steel bracket is used to fix it to the frame column; when the end of the channel steel beam is a filler wall, a vertical groove is chiseled in the filler wall and a channel steel buttress column is set, and the channel steel beam is fixedly connected to the channel steel buttress column.

[0014] Preferably, any of the above schemes is that the model of the channel steel beam is 16a#, bolt holes are set at an interval of no more than 1m between the upper and lower parts of the channel steel beam, a φ25 steel casing is installed inside, and the double-piece channel steel beam is connected as a whole by M16x50 bolts.

[0015] Preferably, any of the above schemes has a model of L80×80×3, the angle steel bracket is connected to the channel steel beam via M16x50 bolts, and the angle steel bracket is connected to the frame column via M16 expansion bolts.

[0016] Preferably, any of the above schemes has a model of 18a#, and the channel steel buttress column is connected to the infill wall via M16 expansion bolts.

[0017] Step 1: First, chisel grooves on the wall to install the double-jointed channel steel beams, and then tighten them with triangular wooden wedges and fill the gaps with mortar.

[0018] Step 2: Install L80×80×3 angle steel and 18a# channel steel buttresses at both ends of the wall, and fix the double 16a# channel steel beams with the end L80×80×3 angle steel and 18a# channel steel buttresses. After the 18a# channel steel buttresses are installed, fill the wall with mortar.

[0019] Step 3: Partially dismantle the protective infill wall at the hanger, drill holes with a water drill, and install the hanger. After drilling holes in the 6.3# lock channel steel and inserting it into the hanger, weld it to the double-joined 16a# channel steel beam, and then tighten the lock nut at the lower end of the hanger to complete the middle hanging of the double-joined 16a# channel steel beam. At this point, all support work for the infill wall to be protected is completed.

[0020] Step 4: Remove the filling wall below the ceiling that needs to be removed.

[0021] Step 5: Carry out decoration construction according to the renovation plan.

[0022] This allows for protective removal of the infill wall without compromising the safety of the suspended ceiling.

[0023] Preferably, any of the above schemes is that the locking channel steel is specifically a 6.3# channel steel; the hanger rod is specifically a φ14 hanger rod, and the interval between them is not greater than 2m.

[0024] By installing hangers and locking channel steels, the span of the double-jointed channel steel beams can be effectively reduced to ensure the safety of the wall.

[0025] Compared with the prior art, the advantages and beneficial effects of the utility model are:

[0026] The protective demolition structure of the masonry infill wall of an existing building provides a strong support system for the protective infill wall through the coordinated arrangement of channel steel beams, angle steel brackets, channel steel buttresses, hangers, locking channel steels, and locking nuts. The double-piece channel steel beams, the matching angle steel brackets, and the channel steel buttresses. This structure can effectively ensure the stability of the protective wall and ceiling structure and avoid damage during the demolition process. By setting hangers, locking channel steels, and locking nuts, the span of the double-piece channel steel beams can be effectively reduced to ensure the safety of the wall. This protective construction method can effectively avoid damage and loss to the ceiling caused by demolition work. In this way, the protective demolition of the infill wall can be achieved without affecting the safety of the ceiling, which effectively solves the problems existing in the prior art.

[0027] Additional aspects and advantages of the present invention will be given in part in the following description and in part will become apparent from the following description or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0029] Figure 1 It is a front view schematic diagram of the structure of the utility model;

[0030] Figure 2 It is a schematic diagram of the structural section of the utility model;

[0031] Figure 3 For this utility model Figure 1 The large sample picture at A in the middle;

[0032] Figure 4 For this utility model Figure 1 and Figure 2 The large sample picture at B in the middle;

[0033] Figure 5 For this utility model Figure 1 Large sample image at center C.

[0034] In the figure: 1-ceiling, 2-filling wall, 3-channel steel beam, 4-angle steel bracket, 5-channel steel buttress column, 6-frame beam, 7-hanging rod, 8-locking channel steel, 9-protective filling wall, 10-frame column, 11 locking nut. DETAILED DESCRIPTION

[0035] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar components or components with the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0036] like Figure 1-5 As shown, the protective demolition structure of the existing building masonry filling wall includes a suspended ceiling 1, a protective filling wall 9, and a frame beam 6. The protective filling walls 9 are arranged on both sides of the suspended ceiling 1, and the suspended ceiling 1 is located at the lower part of the frame beam 6;

[0037] The protective filling wall 9 is corresponding to the horizontal groove below the bottom line of the ceiling 1, and the double-jointed channel steel beam 3 is inserted and tightly plugged with a triangular wooden wedge. The gap between the upper part of the channel steel beam 3 and the groove of the filling wall 2 is filled with mortar;

[0038] An angle steel bracket 4 is installed at one end of the protective filling wall 9, and a vertical groove is chiseled and a channel steel buttress column 5 is installed at the other end;

[0039] Both ends of the channel steel beam 3 are fixedly connected to the angle steel bracket 4 and the channel steel buttress column 5;

[0040] A vertical suspension rod 7 is installed in the frame beam 6, and the bottom end of the suspension rod 7 is connected to a locking channel steel 8 through a locking nut 11;

[0041] Both sides of the lock channel steel 8 are welded to the channel steel cross beam 3 .

[0042] Embodiment 1: The cross-sectional shape of a single channel steel beam 3 is U-shaped, and each two channel steel beams 3 are grouped together and back-to-back. The height of the chiseled groove for protecting the infill wall 9 is 170 mm. When the end of the channel steel beam 3 is a concrete frame column 10, an angle steel bracket 4 is used to fix it to the frame column; when the end of the channel steel beam 3 is an infill wall 2, a vertical groove is chiseled in the infill wall 2 and a channel steel buttress column 5 is set, and the channel steel beam 3 is fixedly connected to the channel steel buttress column 5.

[0043] The model of the channel steel beam 3 is 16a#. Bolt holes are set at intervals of no more than 1m between the upper and lower parts of the channel steel beam 3. A φ25 steel casing is installed inside the top. The double-jointed channel steel beam 3 is connected as a whole by M16x50 bolts. The model of the angle steel bracket 4 is L80×80×3. The angle steel bracket 4 is connected to the channel steel beam 3 by M16x50 bolts. The angle steel bracket 4 is connected to the frame column 10 by M16 expansion bolts. The model of the channel steel buttress column 5 is 18a#. The channel steel buttress column 5 is connected to the infill wall 2 by M16 expansion bolts. The locking channel steel 8 is specifically a 6.3# channel steel; the hanger 7 is a φ14 hanger, and the intervals are no more than 2m. By setting the hanger 7 and the locking channel steel 8, the span of the double-jointed channel steel beam 3 can be effectively reduced to ensure the safety of the infill wall 9.

[0044] The working principle of the utility model is as follows:

[0045] The first step: first, cut a groove on the protective filling wall 9 to install the double-jointed channel steel beam 3, and plug it tightly with triangular wooden wedges, and fill the gap with mortar.

[0046] Step 2: Install L80×80×3 angle steel brackets 4 and 18a# channel steel buttresses 5 at both ends of the chiseled protection filling wall 9, and fix the double-jointed 16a# channel steel beam 3 with the end L80×80×3 angle steel brackets 4 and 18a# channel steel buttresses 5. After the 18a# channel steel buttresses 5 are installed, fill the wall surface with mortar.

[0047] Step 3: Partially dismantle the infill wall at the hanger 7, drill holes with a water drill, and install the hanger 7. After drilling holes in the 6.3# lock channel steel 8 and inserting it into the hanger 7, weld it to the double-joined 16a# channel steel beam 3, and then tighten the lock nut 11 at the lower end of the hanger 7 to complete the middle hanging of the double-joined 16a# channel steel beam 3. At this point, all support work for the infill wall to be protected is completed.

[0048] Step 4: Remove the filling wall below the suspended ceiling 1.

[0049] Step 5: Carry out decoration construction according to the renovation plan.

[0050] Compared with the prior art, the present invention has the following beneficial effects:

[0051] The protective demolition structure of the existing building masonry filling wall, through the coordinated arrangement of the channel steel beam 3, the angle steel bracket 4, the channel steel buttress column 5, the hanger 7, the locking channel steel 8, and the lock nut 11, the double-joined channel steel beam 3 and the angle steel bracket 4, the channel steel buttress column 5 and the hanger 7 provide effective support for the filling wall 2. This structure can effectively support the protective filling wall 9 connected to the ceiling 1, and avoid the damage of the ceiling 1 when the lower filling wall masonry is removed. By setting the hanger 7, the locking channel steel 8, and the lock nut 11, the span of the double-joined channel steel beam 3 can be effectively reduced, and the bending strength and deflection deformation of the double-joined channel steel beam 3 can be ensured. This protective construction method can effectively avoid the damage and loss to the ceiling 1 caused by the demolition work. In this way, the protective demolition of the filling wall can be achieved without affecting the safety of the ceiling, which effectively solves the problems existing in the prior art.

Claims

1. A protective demolition structure for an existing building masonry filling wall, characterized in that: It comprises a suspended ceiling (1), a protective filling wall (9), and a frame beam (6), wherein the suspended ceiling (1) is arranged on both sides of the protective filling wall (9), and the suspended ceiling (1) is located at the lower part of the frame beam (6); The protective filling wall (9) is provided with a horizontal groove cut out below the bottom line of the corresponding suspended ceiling (1), into which a double-jointed channel steel beam (3) is inserted and tightly plugged with a triangular wooden wedge, and the gap between the upper part of the channel steel beam (3) and the protective filling wall (9) is filled with mortar; An angle steel bracket (4) is installed at one end of the protection filling wall (9), and a vertical groove is chiseled at the other end and a channel steel buttress column (5) is installed; both ends of the channel steel cross beam (3) are fixedly connected to the angle steel bracket (4) and the channel steel buttress column (5); A vertical suspension rod (7) is installed in the frame beam (6), and the bottom end of the suspension rod (7) is connected to a locking channel steel (8) via a locking nut (11); Both sides of the locking channel steel (8) are welded to the channel steel crossbeam (3).

2. The protective demolition structure of an existing building masonry infill wall as claimed in claim 1, characterized in that: The cross-sectional shape of a single channel steel beam (3) is U-shaped, and two channel steel beams (3) form a group and are arranged back to back. The height of the chiseled groove of the protective filling wall (9) is 170 mm.

3. The protective demolition structure of an existing building masonry infill wall as claimed in claim 2, characterized in that: The model of the channel steel cross beam (3) is 16a#. Bolt holes are arranged at intervals of no more than 1m at the top and bottom of the channel steel cross beam (3). A φ25 steel casing is installed inside. The double-jointed channel steel cross beams (3) are connected as a whole by M16x50 bolts.

4. The protective demolition structure of an existing building masonry infill wall as claimed in claim 3, characterized in that: The model of the angle steel bracket (4) is L80×80×3. The angle steel bracket (4) is connected to the channel steel beam (3) via M16x50 bolts, and the angle steel bracket (4) is connected to the frame column (10) via M16 expansion bolts.

5. The protective demolition structure of an existing building masonry infill wall as claimed in claim 4, characterized in that: The model of the channel steel buttress column (5) is 18a#, and the channel steel buttress column (5) is connected to the filling wall (2) via M16 expansion bolts.

6. The protective demolition structure of an existing building masonry infill wall as claimed in claim 5, characterized in that: The channel steel cross beam (3) is specifically a 6.3# channel steel, and the interval between the suspension rods (7) is no greater than 2m.

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