Masonry infill wall without construction columns and its construction method

Abstract

The present invention discloses a masonry infill wall without construction columns and its construction method, including: a restraint framework, which includes multiple support columns and connecting beams. The multiple support columns are arranged in a matrix. The support columns are supported between the upper floor slab and the lower floor slab. The two ends of the support columns are respectively anchored in the upper floor slab and the lower floor slab. The adjacent two support columns extend towards each other to form limit flanges. The connecting beam is connected between the limit flanges of the adjacent two support columns. A filling space is enclosed between the limit flanges of the multiple support columns and the connecting beam; multiple aerated concrete blocks are stacked in the filling space to form a core material, and precast concrete blocks for connecting window frames are embedded in the core material; and a surface layer is coated on the outside of the restraint framework and the core material. The present invention solves the problem that when using an infill wall as an inter-window wall, its integrity and stability cannot be effectively guaranteed, bringing potential safety hazards to the later-stage reinforcement of window frames.

Description

Technical Field

[0001] The present invention relates to the technical field of building construction, and particularly relates to a masonry infill wall without construction columns and a construction method thereof. Background Art

[0002] In multi-story and high-rise frame-structured public buildings, in order to be aesthetically pleasing, for indoor lighting, and to enhance the urban effect, the exterior facades mostly adopt a form combining masonry infill walls and floor-to-ceiling exterior windows. Due to the limitation of the width of the floor-to-ceiling exterior windows and the requirements of the exterior facade effect, the width of some wall bodies between windows will be between 200 mm and 600 mm, and their integrity, stability, and attachability are relatively poor. These wall bodies between windows are independent walls not connected to other interior walls. The conventional practice is to use infill walls as the wall bodies between windows. Conventional infill walls are prone to wall instability and collapse, and the integrity and stability of infill walls used as wall bodies between windows cannot be effectively guaranteed, which will bring certain potential safety and quality hazards to the later-stage window frame reinforcement. Summary of the Invention

[0003] To overcome the defects existing in the prior art, the present invention provides a masonry infill wall without construction columns and a construction method thereof, so as to solve the problems that when using infill walls as wall bodies between windows, their integrity and stability cannot be effectively guaranteed, and potential safety hazards are brought to the later-stage window frame reinforcement.

[0004] To achieve the above object, the present invention provides a masonry infill wall without construction columns and a construction method thereof, including:

[0005] A restraint framework, including multiple support columns and connecting beams. The multiple support columns are arranged in a matrix. The support columns are supported between the upper floor slab and the lower floor slab. The two ends of the support columns are respectively anchored in the upper floor slab and the lower floor slab. The adjacent two support columns extend towards each other to form limiting flanges. The connecting beam is connected between the limiting flanges of the adjacent two support columns. A filling space is enclosed between the limiting flanges of the multiple support columns and the connecting beam;

[0006] Multiple aerated concrete blocks, which are stacked in the filling space to form a core material. Precast concrete blocks for connecting window frames are embedded in the core material; and

[0007] A surface layer, which covers the outside of the restraint framework and the core material.

[0008] Further, side beams anchored in the upper floor slab and anchor bars in the lower floor slab are respectively connected to the two ends of the support column.

[0009] Further, the limiting flange abuts against the outer side surface of the core material.

[0010] Further, the surface layer includes:

[0011] A crack prevention net, which is wrapped around the outside of the restraint framework and the core material; and

[0012] Mortar, which is applied to the crack prevention net.

[0013] Furthermore, the crack prevention net is a galvanized steel wire mesh

[0014] Furthermore, the crack prevention net is an alkali-resistant fiberglass mesh.

[0015] Furthermore, a plurality of the connecting beams are connected between the limiting flanges of two adjacent supporting columns, and the plurality of connecting beams are arranged at intervals along the length direction of the supporting columns.

[0016] The present invention provides a construction method for a masonry infill wall without structural columns, including the following steps:

[0017] Install a part of the supporting columns in the construction station of the masonry infill wall without structural columns. A part of the supporting columns are arranged along the circumferential direction of the construction station and a notch is reserved. Anchor the two ends of a part of the supporting columns into the upper floor slab and the lower floor slab respectively;

[0018] Through the notch, stack a plurality of aerated concrete blocks inside a plurality of the supporting columns to form a core material, and precast concrete blocks for connecting window frames are embedded in the core material;

[0019] Install the remaining supporting columns in the notch, and anchor the two ends of the remaining supporting columns into the upper floor slab and the lower floor slab respectively;

[0020] Connect connecting beams between the limiting flanges of two adjacent supporting columns to form a restraint framework. A plurality of filling spaces are formed between the limiting flanges of the supporting columns and the connecting beams, and the core material is embedded in the filling spaces;

[0021] Wrap a surface layer around the outside of the restraint framework and the core material to form the masonry infill wall without structural columns.

[0022] The beneficial effect of the present invention is that for the masonry infill wall without structural columns of the present invention, a restraint framework is formed by using supporting columns and connecting beams. The upper and lower ends of the supporting columns are anchored in the upper and lower floor slabs, and a filling space is formed inside the restraint framework. After aerated concrete blocks and precast concrete blocks are masonry into a core material in the filling space, the core material is constrained by the restraint framework, and the restraint framework can strengthen the integrity of the core material and ensure the effective exertion of the working performance of the core material.

[0023] The production cycle of the masonry infill wall without structural columns of the present invention is short, and processes such as steel bar binding and formwork cutting and reinforcement in the conventional scheme are avoided.

[0024] The construction of the masonry infilled wall without construction columns of the present invention is convenient. The main construction processes are the anchoring at both ends of the supporting columns, the installation of the connecting beams, and the masonry of the core materials. There is no formwork removal in the later stage.

[0025] The masonry infilled wall without construction columns of the present invention improves the integrity of the wall. The four corners of the masonry core materials are wrapped by the limiting flanges of the supporting columns, which has a strong binding force, making the masonry infilled wall without construction columns of the present invention have strong integrity, good forming quality and high safety. Due to the existence of the limiting flanges of the supporting columns, the edges of the wall are straight and the wall surface is flat.

[0026] The masonry infilled wall without construction columns of the present invention is green, environmentally friendly, economical and practical. It does not require cutting of formwork and steel pipes; it reduces the danger of formwork removal; it improves the quality, speeds up the construction progress and reduces the workload. Brief Description of the Drawings

[0027] By reading the detailed description of the non-limiting embodiments with reference to the following drawings, other features, objects and advantages of the present application will become more apparent:

[0028] Figure 1 It is a schematic structural diagram of the masonry infilled wall without construction columns according to an embodiment of the present invention.

[0029] Figure 2 It is Figure 1 The cross-sectional view at B-B in

[0030] Figures 3 to 8 It is a schematic diagram of the steps of the construction method of the masonry infilled wall without construction columns according to an embodiment of the present invention. Detailed Description of the Specific Embodiment

[0031] The following further details the present application with reference to the drawings and embodiments. It can be understood that the specific embodiments described herein are only for explaining the related invention and not for limiting the invention. Additionally, it should be noted that for the sake of description, only the parts related to the invention are shown in the drawings.

[0032] It should be noted that, without conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The following will detail the present application with reference to the drawings and embodiments.

[0033] Referring to Figures 1 to 8 As shown, the present invention provides a masonry infilled wall without construction columns, including: a restraint skeleton 1, a core material A and a surface layer.

[0034] Specifically, the restraint skeleton 1 includes a plurality of supporting columns 11 and connecting beams 12. Among them, the plurality of supporting columns 11 are arranged in a matrix. In this embodiment, the number of supporting columns is four, and the four supporting columns are arranged in a rectangle.

[0035] Each support column 11 is supported between the upper floor slab and the lower floor slab, and both ends of each support column 11 are respectively anchored in the upper floor slab and the lower floor slab 3. A side beam 4 is formed at the outer edge of the upper floor slab. The upper end of the support column is anchored in the side beam 4 of the upper floor slab, and the lower end of the support column is anchored in the lower floor slab.

[0036] The side faces of adjacent support columns 11 extend oppositely to form limiting flanges. The connecting beam 12 is connected between the limiting flanges of adjacent support columns 11. In this embodiment, limiting flanges are formed on both sides of the support column, and the limiting flanges on both sides of the support column are vertically arranged.

[0037] The limiting flanges of multiple support columns 11 and the connecting beam 12 enclose a filling space.

[0038] The core material A includes multiple aerated blocks 2 and precast concrete blocks 21. Multiple aerated blocks 2 are stacked in the filling space to form the core material A, and precast concrete blocks 21 are embedded in the core material A. The precast concrete blocks 21 are used to connect window frames. In this embodiment, the shape and size of the filling space are adapted to the shape and size of the core material. The aerated blocks include long blocks and short blocks. The long blocks and short blocks only differ in length, and other aspects including size and material are the same. The length and width of the long blocks are adapted to the length and width of the filling space. Multiple long blocks and short blocks are stacked in the filling space. Accommodating grooves are formed between the end faces at both ends of the short blocks and the upper and lower long blocks adjacent to the short blocks, and the precast concrete blocks are embedded in the accommodating grooves. The length of the precast concrete blocks is adapted to the width of the short blocks. The sum of the widths of the precast concrete at both ends of the short blocks is equal to the difference between the length of the long block and the short block.

[0039] The surface layer is coated on the outside of the restraint framework 1 and the core material A. In order to clearly show the internal structure of the masonry infilled wall without construction columns of the present invention, the surface layer is not shown in the drawings.

[0040] In order to reduce processes, improve resource utilization rate, speed up construction progress, save costs, ensure quality and safety, improve the performance of such infilled walls, and meet the requirements of green environmental protection and energy-saving construction, such window wall bodies are optimized.

[0041] The masonry infilled wall without construction columns of the present invention uses support columns and connecting beams to form a restraint framework. The upper and lower ends of the support columns are anchored in the upper and lower floor slabs, and a filling space is formed inside the restraint framework. After the aerated blocks and precast concrete blocks are built into the core material in the filling space, the core material is constrained by the restraint framework, and the restraint framework can strengthen the integrity of the core material and ensure the effective exertion of the working performance of the core material.

[0042] The masonry infilled wall without construction columns of the present invention is applicable to the window infilled wall within the range of (200mm, 600mm] on the exterior facade of large public buildings, and is an independent wall that is not connected to other interior walls. If the interior or exterior wall can meet the following requirements: 1. The width of the infilled wall is within the range of (200mm, 600mm]; 2. It is an independent wall, then the construction can be carried out according to the construction process method of the masonry infilled wall without construction columns of the present invention.

[0043] The production cycle of the masonry infilled wall without construction columns of the present invention is short, avoiding processes such as steel bar binding and formwork cutting and reinforcement in the conventional scheme.

[0044] The construction of the masonry infilled wall without construction columns of the present invention is convenient. The main construction processes are the anchoring at both ends of the support columns, the installation of the connecting beams, and the masonry of the core materials. There is no form removal in the later stage.

[0045] The masonry infilled wall without construction columns of the present invention improves the integrity of the wall. The four corners of the masonry core materials are wrapped by the limiting flanges of the support columns, which have strong binding force, making the masonry infilled wall without construction columns of the present invention have strong integrity, good forming quality, and high safety. Due to the existence of the limiting flanges of the support columns, the edges of the wall are straight and the wall surface is flat.

[0046] The masonry infilled wall without construction columns of the present invention is green, environmentally friendly, economical and practical. It does not require cutting of formwork and steel pipes; reduces the danger of form removal; improves the quality, speeds up the construction progress, and reduces the workload.

[0047] In this embodiment, planting bars 111 are respectively connected to both ends of the support column 11. The planting bar 111 at the upper end of the support column 11 is anchored in the side beam 4 of the upper floor slab, and the planting bar 111 at the lower end of the support column 11 is anchored in the lower floor slab.

[0048] In this embodiment, the support column and the limiting flange are integrally formed, and the limiting flange abuts against the outer side surface of the core material A.

[0049] As a preferred embodiment, multiple connecting beams are connected between the limiting flanges of adjacent support columns, and the multiple connecting beams are arranged at intervals along the length direction of the support columns.

[0050] As a preferred embodiment, the surface layer includes: a crack prevention net and mortar. Specifically, the crack prevention net is coated on the outside of the restraint framework 1 and the core material A. The mortar is applied to the crack prevention net.

[0051] Among them, the crack prevention net is a galvanized steel wire mesh or an alkali-resistant fiberglass mesh.

[0052] In this embodiment, the grade model of the aerated block is A5 (unit weight ≤ 600 kg / m 3) It is built with M15 cement mortar or Ma5 special binder for aerated blocks.

[0053] The support columns are galvanized equal-leg angles and shall not have significant torsion.

[0054] The post-inserted bars are threaded steel bars with a diameter of 12 mm and a length of 260 mm. The post-inserted bar glue is specifically used for fixing and strengthening the angle steel in this construction method.

[0055] The material strength of the precast concrete blocks is MU10, and they are built with M10 cement mortar.

[0056] The mesh size of the galvanized steel wire mesh is not greater than 10 mm × 10 mm, and the wire diameter of the steel wire is 0.9 mm.

[0057] The quality of the alkali-resistant fiberglass mesh is 120 g / m 2 or more.

[0058] The present invention provides a construction method for a masonry infill wall without structural columns, including the following steps:

[0059] S1: Install a part of the support columns 11 in the construction station of the masonry infill wall without structural columns. A part of the support columns 11 are arranged along the circumferential direction of the construction station and a notch is reserved. Anchor the two ends of a part of the support columns 11 into the upper floor slab and the lower floor slab respectively.

[0060] Specifically, step S1 includes:

[0061] S11: Processing of the support columns: The cutting size is based on the clear height at the infill wall - 3 mm, and a gap value of 2 - 4 mm is reserved; the support columns must be straight without distortion; the cross-sectional dimensions and thickness should meet the requirements.

[0062] S12: Substrate treatment of the side beams of the lower floor slab and the upper floor slab: The substrate should be clean and flat; filling and plastering are treated with 1:2 cement mortar.

[0063] S13: Positioning and layout: Pop out the outer line of the masonry infill wall without structural columns to form the construction station, mark the identification of the post-inserted bar holes at the position of the vertical and horizontal intersection lines. For the post-inserted bar holes at the upper end of the support columns, use a laser instrument to project vertically upward from the intersection point and mark well.

[0064] S14: Drilling and post-inserting bar construction: As Figure 3 shown, the drilling position is accurate and the drilling depth meets the requirements. The post-inserted bars should be fixed firmly; as Figure 4 shown, the exposed bar length of the post-inserted bars should meet the requirements for welding and extending.

[0065] S15: As Figure 5As shown in the figure, the installation construction of the supporting columns: First, weld and install the two outer and one inner supporting columns of the masonry infill wall without structural columns to the exposed steel bars of the implanted steel bars, and temporarily do not install the remaining one supporting column to form a notch (a notch is formed on the basis of the formed complete restraint framework). Align the end of the supporting column with the exposed steel bar of the implanted steel bar, so that the internal angle of the supporting column (i.e., the internal angle formed between the limiting flanges on both sides of the supporting column) wraps the exposed steel bar of the implanted steel bar, and weld the exposed steel bar and the internal angle of the supporting column.

[0066] S2: Through the notch, stack multiple aerated concrete blocks 2 inside multiple supporting columns 11 to form core material A, and precast concrete blocks 21 for connecting the window frame are embedded in core material A.

[0067] Construction of the core material: Before the construction of stacking aerated concrete blocks, as Figure 2 shown in the figure, first grind or cut out a space with a width of 15 mm at the four corners of the two bottom and two top aerated concrete blocks to avoid the exposed steel bars of the implanted steel bars, and make the aerated concrete blocks just fit between the two limiting flanges of the supporting column.

[0068] The mortar joint for laying aerated concrete blocks is left at 12 - 15 mm. Leave the top two courses of bricks unfilled for 14 days and then fill them up, and install the last supporting column (i.e., the supporting column at the notch of the restraint framework). As Figure 1 shown in the figure, the top two courses of bricks are laid with whole lime - sand bricks in a header bond, and the voids are filled tightly with 1:3 cement mortar. On both sides of the infill wall, concrete blocks are set every 600 mm for fixing the window frame. In the height direction on both sides of the infill wall, a 200×200×100 precast concrete block is set every 400 mm for strengthening and positioning the window frame.

[0069] S3: Install the remaining supporting columns 11 in the notch, and anchor the two ends of the remaining supporting columns 11 into the upper floor slab and the lower floor slab respectively.

[0070] After 14 days, fill them up and install the last supporting column (i.e., the supporting column at the notch of the restraint framework). Install the remaining supporting columns 11 in the notch, and weld - connect the two ends of the remaining supporting columns 11 to the exposed steel bars of the implanted steel bars in the side beam of the upper floor slab and the exposed steel bars of the implanted steel bars in the lower floor slab respectively.

[0071] S4: Connect the connecting beams 12 between the limiting flanges of adjacent supporting columns 11 to form a restraint framework 1. The limiting flanges of multiple supporting columns 11 and the connecting beams 12 enclose a filling space, and core material A is embedded in the filling space.

[0072] After the reinforcement installation of the last support column is completed, a tie beam is set every 2.1 meters for floors with a height between 3 meters and 6 meters; when the floor height is less than 3 meters, three tie beams are welded and installed evenly in the height direction of the support column. The tie beam is made of flat steel with a length × height × width = wall length × 4 mm × 3 mm, and is welded and reinforced around the four support columns. Anti-rust treatment is done at the welding joints.

[0073] S5: Wrap the surface layer around the outside of the restraint skeleton 1 and the core material A to form a masonry infilled wall without construction columns.

[0074] After the coping bricks at the topmost layer of the core material are filled and built, the entire wall is constructed with a mesh. Use fiberglass mesh or wire mesh. The mesh should be straight, flat, and firmly bonded.

[0075] The above description is only the preferred embodiment of the present application and the explanation of the applied technical principles. Those skilled in the art should understand that the scope of the invention involved in the present application is not limited to the technical solution formed by the specific combination of the above technical features, and should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the inventive concept. For example, the technical solutions formed by mutually replacing the above features with the (but not limited to) technical features with similar functions disclosed in the present application.

Claims

1. A masonry infill wall without construction columns, characterized in that, it includes: A restraint framework, including multiple support columns and connecting beams. The multiple support columns are arranged in a matrix. The support columns are supported between the upper floor slab and the lower floor slab. The two ends of the support columns are respectively anchored in the upper floor slab and the lower floor slab. The adjacent two support columns extend towards each other to form limit flanges. The connecting beam is connected between the limit flanges of the adjacent two support columns. A filling space is enclosed between the limit flanges of the multiple support columns and the connecting beam; Multiple aerated concrete blocks are stacked in the filling space to form a core material, and precast concrete blocks for connecting window frames are embedded in the core material; and A surface layer is wrapped around the outside of the restraint framework and the core material; Edge beams anchored in the upper floor slab and post-inserted bars in the lower floor slab are respectively connected to the two ends of the support column; The limit flange abuts against the outer side surface of the core material.

2. The masonry infill wall without construction columns according to claim 1, characterized in that, The surface layer includes: A crack prevention mesh wrapped around the outside of the restraint framework and the core material; and Mortar applied to the crack prevention mesh.

3. The masonry infill wall without construction columns according to claim 2, characterized in that, The crack prevention mesh is a galvanized steel wire mesh.

4. The masonry infill wall without construction columns according to claim 2, characterized in that, The crack prevention mesh is an alkali-resistant fiberglass mesh cloth.

5. The masonry infill wall without construction columns according to claim 1, characterized in that, Multiple connecting beams are connected between the limit flanges of the adjacent two support columns, and the multiple connecting beams are arranged at intervals along the length direction of the support column.

6. A construction method of the masonry infill wall without construction columns according to any one of claims 1 to 5, characterized in that, it includes the following steps: Install a part of the support columns in the construction station of the masonry infill wall without construction columns. A part of the support columns are arranged along the circumferential direction of the construction station and a notch is reserved. Anchor the two ends of the part of the support columns in the upper floor slab and the lower floor slab respectively; Through the notch, stack multiple aerated concrete blocks inside the multiple support columns to form a core material, and embed precast concrete blocks for connecting window frames in the core material; Install the remaining support columns in the notch, and anchor the two ends of the remaining support columns in the upper floor slab and the lower floor slab respectively; Connect connecting beams between the limit flanges of the adjacent two support columns to form a restraint framework. A filling space is enclosed between the limit flanges of the multiple support columns and the connecting beam, and the core material is embedded in the filling space; Wrap the surface layer around the outside of the restraint framework and the core material to form the masonry infill wall without construction columns.

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