Brickwork stair wall replacement reinforcing structure

Abstract

The utility model discloses a masonry stair wall body replacement reinforcing structure which comprises a steel column, a steel beam, a reinforcing mesh, a steel plate and an expansion bolt. A space for placing a steel column is formed in the replacing wall body, and a hole position for allowing the steel column to pass through is formed in the brick body dismounting position of each stair platform; steel plates are welded to the top and the bottom of the steel column, and a plurality of bolt holes are formed in the steel plates. The steel columns are sequentially installed from bottom to top, the upper steel column and the lower steel column are fixed through expansion bolts, and the multiple steel columns form the combined steel column. A steel beam is welded between every two adjacent steel columns. And steel bar meshes are arranged at the combined steel columns and the non-disassembled wall body, formworks are erected, and concrete is poured. According to the utility model, the compression resistance, shear resistance and shock resistance of the house are improved, and the use requirements of people on the house are met.

Description

TECHNICAL FIELD

[0001] The utility model belongs to old house reconstruction technical field, and specifically relates to a masonry stair wall body replacement reinforcing structure. BACKGROUND

[0002] With the development of social economy, people have greater requirements on the use function of original houses. The compression resistance, shear resistance and seismic resistance of the original masonry structure house cannot meet the conditions, especially in the key parts such as the internal stair of the house, if the compression resistance, shear resistance and seismic resistance are low, disaster accidents are prone to occur, and the safety of people's life and property is affected. Therefore, it is necessary to design a structure for implementing replacement reinforcement of the masonry structure stair wall body, so as to improve the compression resistance, shear resistance and seismic resistance, meet the demand of people on the use of houses, and avoid the occurrence of related safety hazards. SUMMARY

[0003] The utility model aims at providing a masonry stair wall body replacement reinforcing structure to solve the problem that the compression resistance, shear resistance and seismic resistance of the internal stair of the old house cannot meet the conditions.

[0004] In order to achieve the above-mentioned purpose, the utility model provides the following technical scheme: a masonry stair wall body replacement reinforcing structure, comprising a steel column, a steel beam, a steel mesh, a steel plate and an expansion bolt; a space for placing the steel column is formed on the replacement wall body, and a hole for the steel column to pass through is formed at the brick removal position of each stair platform; the top and bottom of the steel column are both welded with a steel plate, and a plurality of bolt holes are formed in the steel plate; the steel columns are installed in sequence from bottom to top, the upper and lower two steel columns are fixed by the expansion bolt, and the plurality of steel columns form a combined steel column; a steel beam is welded between the adjacent two steel columns; the steel mesh is arranged at the combined steel column and the undemolished wall body, and a formwork is supported and the concrete is poured.

[0005] Further, the steel mesh has two arrangement forms:

[0006] 1) double-side reinforcing inner and outer walls: the steel mesh is arranged on the inner and outer sides of the wall body, a plurality of drill holes are formed in the wall body, the fixed hooks are inserted into the drill holes, and the two ends of the fixed hooks are respectively hooked with the steel mesh on the inner side of the wall body and the steel mesh on the outer side of the wall body;

[0007] 2) single-side reinforcing inner wall: the steel mesh is arranged on the inner side of the wall body, the L-shaped anchor bars are inserted into the holes formed in the wall body, and one end of the L-shaped anchor bar is hooked with the steel mesh on the inner side of the wall body.

[0008] Further, the combined steel column arranged on the replacement wall body is at least two groups.

[0009] Further, the steel beam between the adjacent two steel columns is horizontally welded or welded at a certain angle.

[0010] The utility model discloses a reinforcing structure is arranged at the stair of old house interior, has improved the compression resistance, shearing resistance and seismic resistance of house, satisfies the demand of people to house use, avoids the occurrence of relevant security risks. BRIEF DESCRIPTION OF DRAWINGS

[0011] Figure 1 It is the schematic diagram of the reinforcing arrangement of the utility model (one side wall of stair);

[0012] Figure 2 It is the main view schematic diagram of another reinforcing arrangement of the utility model (wall opposite stair);

[0013] Figure 3 It is Figure 2 The top view schematic diagram of reinforcing arrangement;

[0014] Figure 4 It is the connection relation diagram of steel column and steel plate;

[0015] Figure 5 It is the schematic diagram of steel plate;

[0016] In the drawing: 1-steel column, 2-steel beam, 3-steel mesh, 4-steel plate, 5-expansion bolt, 6-replacing wall, 7-stair platform, 8-fixed hook, 9-original wall, 10-stair. DETAILED DESCRIPTION

[0017] Now reference the drawings and describe the embodiment of the utility model, and the person skilled in the art will understand that the following embodiment is only for illustrating the utility model, and should not be regarded as limiting the scope of the utility model. The specific technology, connection relation or condition not noted in the embodiment is according to the technology, connection relation, condition described in the literature in the field or according to the product instruction. The material, instrument or equipment not noted manufacturer is all conventional product that can be obtained by purchase.

[0018] In the description of the utility model, it is necessary to explain that, unless another explicit provision and limitation, the term "installation", "connection", "be equipped with " should do broad sense understanding, for example, can be fixed connection, also can be detachable connection, or integrally connected, can be mechanical connection, also can be electrical connection, can be directly connected, also can be indirectly connected through intermediate medium. For the person skilled in the art, the specific meaning of the above-mentioned terms in the utility model is understood according to specific circumstances.

[0019] Combine Figures 1-5As shown, the utility model provides a kind of masonry stair wall body replacement reinforcing structure, including, steel column 1, steel beam 2, steel mesh 3, steel plate 4 and expansion bolt 5;Space for placing steel column 1 is set on replacement wall 6, and hole position for steel column 1 is set in the brick removal position of each stair platform 7;The top and bottom of steel column 1 are welded with steel plate 4, and multiple bolt holes are set on steel plate 4;Steel column 1 is installed sequentially from bottom to top, and expansion bolt 5 is used to fix between two steel columns 1, and multiple steel columns 1 form combined steel column, and the bottom steel column 1 is installed to the inside of foundation;After the installation of two steel columns 1, steel plate 4 is just located at the bottom surface of stair platform 7, and concrete is poured to fill in the hole of stair platform 7;Steel beam 2 is welded horizontally between two adjacent steel columns 1;Steel mesh 3 is arranged in combined steel column and undismounted wall, and formwork is supported, and concrete is poured. Figure 1 Or Figure 3 As shown.

[0020] Further optimization scheme, steel mesh 3 has two kinds of arrangement forms:

[0021] 1) double-face reinforced inner and outer wall: steel mesh 3 is arranged on the inner and outer sides of wall, multiple drillings are set on wall, fixed hooks 8 are inserted into drillings, and two ends of fixed hook 8 are respectively hooked with steel mesh 3 on the inner side of wall and steel mesh 3 on the outer side of wall;Double-face reinforcement is realized by the way of wall-penetration fixed by pulling, and fixed hook 8 is arranged in plum blossom shape.

[0022] 2) single-face reinforced inner wall: steel mesh 3 is arranged on the inner side of wall, and L-shaped anchor is inserted into hole, and one end of L-shaped anchor is hooked with steel mesh 3 on the inner side of wall;L-shaped anchor is staggered in plum blossom shape.

[0023] The construction steps of single-face reinforced inner wall are further described as follows:

[0024] 1) L-shaped anchor selection and preparation: select appropriate specification steel and bend into L shape, to ensure that its quality and performance meet the standards;

[0025] 2) hole drilling operation: drill holes on vertical wall according to design interval, and the diameter of hole is 10-15mm larger than the diameter of steel, and the depth of hole is not less than 120mm, and the specific depth is determined according to structure stress calculation;During hole drilling process, ensure that the hole is vertical, to avoid inclination affecting anchoring effect;

[0026] 3) L-shaped anchor installation: slowly insert prepared L-shaped anchor into drilled hole, to ensure that the vertical part of steel is perpendicular to structure surface, and the horizontal part is placed according to the direction of design requirement;

[0027] 4) Fill the cement mortar: fill and insert the steel bar with the steel bar, make the cement mortar dense, discharge the bubble in it, and enhance the bonding force between the steel bar and the structure;

[0028] 5) Interleaved arrangement of plum blossom: on the surface of the structure, the L-shaped anchor should be arranged in plum blossom, that is, the positions of the two adjacent rows of L-shaped anchors are staggered, like the distribution of plum blossom petals. The specific distance needs to be determined according to the design calculation, and it is generally not greater than 600mm, so as to ensure that the anchoring force is uniformly distributed and meets the structural stress requirements;

[0029] 6) Vertical steel bar penetrates the floor: when the floor is constructed, the hole for the vertical steel bar to penetrate is reserved in advance, the hole diameter is 10-20mm larger than the steel bar diameter, which facilitates the steel bar to penetrate and is convenient for subsequent filling with mortar or fine stone concrete. After the vertical steel bar penetrates the floor, the steel bar should be bound and connected with the steel bar mesh in the floor on the upper and lower sides of the floor, and the binding points are not less than two, so as to ensure that the vertical steel bar and the floor structure form a whole and work together; at the same time, the hole is filled with the cement mortar or fine stone concrete of the same strength grade as the hole filling, which further strengthens the connection between the steel bar and the floor and improves the integrity of the structure.

[0030] The construction steps of the utility model are as follows:

[0031] Step 1: the stair wall body is removed, the left side, the middle part and the right side brick bodies of each layer wall body are removed from the top layer to the bottom layer in sequence, the removal width is appropriate for steel column installation, and a hole position for installing a steel column is formed at each platform brick body removal position of the stair;

[0032] Step 2: the steel column is installed from the bottom, the bottommost steel column enters the inside of the foundation and is closed with concrete, and the steel columns are connected through the expansion bolts on the upper and lower steel plates; after the combined steel column is installed, a steel beam is welded between the two adjacent steel columns;

[0033] Step 3: on the basis of step 2, the steel bar mesh is arranged for the removed and replaced wall body, the steel bar mesh is arranged on the inner and outer walls of the double-sided reinforced wall, is fixed by drilling and wall pulling, and is arranged in plum blossom; the steel bar mesh is arranged on the inner wall of the single-sided reinforced wall, is anchored by hole drilling and cement mortar filling, is interleaved in plum blossom, and the vertical steel bar should be continuously penetrated through the floor;

[0034] Step 4: on the basis of step 3, the formwork is arranged for the removed and replaced wall body and the concrete is poured, the combined steel column is closed in the formwork, and after the concrete is poured, the combined steel column is integrated with the wall body;

[0035] Step 5: the formwork is removed.

[0036] The utility model discloses a wall body is removed and is changed to the wall body that does not satisfy the bearing requirement, in the process of removing and changing, the corner of the wall body and the middle brick body are removed for installing the steel column, then the installation steel column is placed, finally the steel mesh sheet is laid on the original wall, and the concrete is poured after the formwork is supported, and this wall is the wall body of removing and changing of increasing section, which improves the compression resistance, shear resistance and seismic resistance of the house.

[0037] The utility model discloses the inside of original wall body is laid with steel mesh, and according to certain interval, it is bored and bored through the wall body, and the steel hook is inserted into the steel mesh and the outside wall body to hook the inside steel mesh and fix the steel mesh sheet. First foundation, then upper structure, from bottom to top, layer by layer, the steel mesh sheet is uniformly arranged in the double reinforced inner and outer wall, and the wall is pulled through the hole, and the plum blossom is arranged. The steel mesh sheet is arranged in the single reinforced inner wall, and the L-shaped anchor is used to anchor with cement mortar, and the L-shaped anchor is plum blossom interlaced. After the steel mesh is fixed, the normal formwork procedure is used to formwork, and then the concrete is poured in the gap between the formwork and the original wall.

[0038] The construction sequence of the building body is as follows: the left side of the top layer wall body, the middle of the top layer wall body, the right side of the next layer wall body, the left side of the next layer wall body, the middle of the next layer wall body, the right side of the next layer wall body, and so on, the left side of the bottom layer wall body, the middle of the bottom layer wall body, and the right side of the bottom layer wall body; the construction sequence of the steel column installation is as follows: the left side of the wall body, the middle of the wall body, and the right side of the wall body; the construction sequence of the steel mesh laying and the concrete pouring is as follows: the bottom layer wall body, the next layer wall body, and so on, the top layer wall body.

[0039] The above is only the preferable specific implementation manner of the utility model, but the protection scope of the utility model is not limited to this, and any skilled person in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the utility model within the technical range disclosed by the utility model, which should be covered in the protection scope of the utility model.

Claims

1. A replacement and reinforcement structure for masonry staircase walls, characterized in that, The structure includes steel columns (1), steel beams (2), steel mesh (3), steel plates (4), and expansion bolts (5); a space is opened on the wall to be replaced (6) for placing the steel columns (1), and holes are opened at the brick removal locations of each stair platform (7) to allow the steel columns (1) to pass through; steel plates (4) are welded to the top and bottom of the steel columns (1), and multiple bolt holes are opened on the steel plates (4); steel columns (1) are installed sequentially from bottom to top, and the upper and lower steel columns (1) are fixed together by expansion bolts (5), and multiple steel columns (1) form a composite steel column; steel beams (2) are welded between two adjacent steel columns (1); steel mesh (3) is laid at the composite steel columns and the unremoved wall, and formwork is erected and concrete is poured.

2. The masonry staircase wall replacement and reinforcement structure according to claim 1, characterized in that, There are two types of layout for the steel mesh (3): 1) Double-sided reinforcement of inner and outer walls: steel mesh (3) is laid on both the inner and outer sides of the wall. Multiple drill holes are drilled through the wall and fixed hooks (8) are inserted into the drill holes. The two ends of the fixed hooks (8) hook the steel mesh (3) on the inner side of the wall and the steel mesh (3) on the outer side of the wall, respectively. 2) Single-sided reinforcement of the inner wall: steel mesh (3) is laid on the inner side of the wall, holes are drilled in the wall, L-shaped anchor bars are inserted into the holes, and one end of the L-shaped anchor bars hooks the steel mesh (3) on the inner side of the wall.

3. The masonry staircase wall replacement and reinforcement structure according to claim 1, characterized in that, There are at least two sets of combined steel columns installed on the replacement wall (6).

4. The masonry staircase wall replacement and reinforcement structure according to claim 1, characterized in that, The steel beams (2) between two adjacent steel columns (1) are welded horizontally or at a certain angle.

Images