Construction method of ganged brick wall

Abstract

The invention discloses a ganged brick wall construction method. The ganged brick wall construction method comprises the following steps that firstly, construction preparation is conducted; 2, anti-overturning design and brick arrangement deepening of outer wall bricks are carried out; step 3, treating a base layer; step 4, surveying and setting out; 5, bricks are arranged at the bottom; sixthly, vertical penetrating reinforcing steel bars are constructed; seventhly, ganged bricks are built, specifically, corners are coiled firstly, then a story pole is erected, and then double-face hanging line building is conducted; eighthly, horizontal and transverse tie bars are constructed; 9, vertical through hole grouting is conducted, specifically, every eight layers of bricks are built, grouting materials are adopted to conduct grouting on the through holes penetrating through the reinforcing steel bars; tenthly, pointing and cleaning protection are conducted; and step 11, brushing an organic silicon coating. According to the method, the vertical reinforcing steel bars, the transverse reinforcing steel bar meshes, the main body structure tie steel bars and the like are fixed to the main body structure, a stable keel stress and anti-seismic system is formed, the ganged brick wall body and the main body structure are effectively tied, and the stability of the wall body is guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of building construction, and in particular to a construction method of a plain brick wall. Background Art

[0002] In the construction industry, exposed brick walls are widely used in traditional architectural restoration, distinctive cultural buildings, and modern landscape architecture because they require no additional decoration and can showcase the bricks' original texture and unique aesthetic. The continuous masonry process of exposed brick walls ensures the integrity and aesthetics of the wall's appearance, avoiding visual disruption caused by structural divisions. However, this masonry method has significant drawbacks. Because it requires continuous construction, it cannot incorporate structural columns and ring beams, which serve as dividers, as is the case with conventional walls. Structural columns and ring beams are key structural measures to improve the stiffness and stability of walls. By working in conjunction with the wall, they can effectively restrain wall deformation and enhance the integrity and seismic performance of the wall. In the case where structural columns and ring beams cannot be set on the exposed brick wall, the wall is prone to cracks, tilts, or even collapses when subjected to wind loads, earthquakes, or the accumulation of deformation during long-term use, seriously affecting the safety and durability of the building structure. In the existing technology, there is no effective and economically reasonable solution to the problem of poor stiffness and stability of exposed brick walls. Therefore, there is an urgent need to develop a new technical means to significantly improve the stiffness and stability of exposed brick walls while ensuring the aesthetics of continuous masonry. Summary of the Invention

[0003] The present invention aims to provide a method for constructing a plain brick wall, which solves the problem of poor rigidity and stability during the construction of the plain brick wall.

[0004] To achieve the above object, the present invention adopts the following technical solutions: A method for constructing a plain brick wall comprises the following steps: Step 1: Construction preparation: prepare technology, site, materials, tests and equipment; Step 2: Anti-overturning design of exterior wall bricks and deepening of brick arrangement; Step 3: Base treatment: first set up the moisture-proof layer, then raise the bottom of the insulation layer, and then apply waterproof coating on the insulation layer; Step 4: Measure and lay out: Set one horizontal control line on each floor, one vertical control line on each window bay on the north and south facades, and one vertical control line on each window bay on the east and west facades; Step 5: Lay out the bricks and lay the foundation: first, pop out the edge line of the decorative brick wall and the position of the door and window openings, and set the skin number rods at the corners and ends of the wall. Draw the number of brick layers and the position of the window openings on the skin number rods. Hang the horizontal control line and vertical through line at the corner of the wall. Then, according to the construction blueprint and the brick arrangement detailed drawing, pre-lay the decorative bricks; Step 6: Vertical through-steel construction: longitudinal perforated steel bars are implanted in the cantilevered concrete slabs. Horizontal tie bars are implanted on the structural columns according to the calculation of the skin number. After the implantation, a pull-out test should be carried out. If the pull-out test is qualified, proceed to the next step. Otherwise, repeat this step again. Step 7: Lay the exposed bricks: first, set the corners, then set up the skin poles, and then lay the bricks on both sides; Step 8: Construction of horizontal tie bars; Step 9: Vertical through-hole grouting: After every eight layers of bricks are laid, grout the through-holes where the steel bars are located using grouting material. Step 10: Joint grouting and cleaning and protection: After the exterior wall is built, grout the U-shaped joint when the mortar joint reaches the "fingerprint hardening" state; Step 11. Apply silicone paint: After all the exterior wall bricks are laid, apply silicone paint on the exterior facade.

[0005] Preferably, the step 2 is specifically as follows: S1. Anti-overturning design for walls between windows, solid walls, stairwell flower walls and walls in special locations; S2. Based on BIM, carry out detailed brick layout design for the second section west facade, the second section east facade, the second section north facade, the first section south facade and the first section east facade.

[0006] Preferably, the wall between windows includes two sections of west facades, two sections of east facades and one section of south facade; The anti-overturning design of the second section of the west facade is as follows: structural columns are added on both sides of the cantilever slab of each floor, and the structural columns are connected to the main structure; a horizontal tie beam is arranged on each floor, and the ends of the horizontal tie beam are connected to the structural columns; The anti-overturning design of the second section of the east facade is as follows: structural columns are added on both sides of the cantilever slab on each floor, and the structural columns are connected to the main structure; horizontal tie beams are arranged between the two structural columns, one on each floor, and the ends of the horizontal tie beams are connected to the structural columns; The anti-overturning design of the south facade is as follows: structural columns are added on both sides of the cantilever slab on each floor, and the structural columns are connected to the main structure; horizontal tie beams are arranged between the two structural columns, one on each floor, and both ends of the horizontal tie beams are connected to the structural columns.

[0007] Preferably, the solid wall includes two sections of north facades and one section of east facade; the anti-overturning design of the two sections of north facades is: Structural columns are set up along the wall with a length of no more than 2 m, and are connected to the main structure cantilever slab with embedded reinforcement; a horizontal tie beam is arranged on each floor, and the horizontal tie beam is connected to the structural column at the back; For the anti-overturning design of the east facade of the section in question: structural columns are set along the wall with a length of no more than 2.2m, and the structural columns are connected to the cantilevered slabs of the main structure with embedded reinforcement; two horizontal tie beams are arranged on each floor, and the horizontal tie beams are connected to the structural columns at the back.

[0008] Preferably, the anti-overturning design of the stairwell flower wall is as follows: structural columns are set along the wall with a length not exceeding 2.6m, structural columns are added on each cantilever plate, and the structural columns are connected to the main structure; two horizontal tie beams are arranged on each layer, and the horizontal tie beams are connected to the rear structural columns.

[0009] Preferably, the anti-overturning design of the wall in the special part is as follows: embedded parts or post-embedded parts are reserved at the position of each cantilever plate, stainless steel plate strips are set for transfer support, and Z-shaped steel plate strips are arranged on the protruding cantilever plates to support decorative bricks.

[0010] Preferably, in step 5, the decorative brick masonry pre-placed bricks are specifically A1. Based on the marked door and window opening position lines, carefully check the dimensions of the wall and buttress between windows to ensure that their lengths conform to the bricklaying module. The mortar joint widths are determined based on the actual masonry dimensions after arranging the large pattern. The sizes of the horizontal and vertical joints are gradually adjusted during masonry, but the total width must not be less than 8mm and not more than 12mm. A2. After the first layer of bricks is placed, draw vertical lines every three joints toward the total height (story) to control the gap. Simultaneously, set up leveling rods at the four corners of the building or at the corners of the stairwell. Each layer must be horizontally checked with twine to ensure that the same elevation is within the allowable deviation range. Horizontal joints should be uniform, straight, and smooth.

[0011] Preferably, in step seven, the masonry is specifically B1, when laying bricks, the joints must be staggered at the top and bottom; B2, masonry mortar is used immediately after mixing; B3, masonry is built using the mortar method; B4, water the decorative tiles to keep them moist; B5, masonry joints should be horizontal and vertical, and all joints should be filled with mortar; B6: The horizontal mortar joint thickness and vertical mortar joint width of the masonry are both 10mm. It is strictly forbidden to use water to grout the joints; B7: Vertical joints should be filled with mortar by squeezing or adding mortar. It is strictly forbidden to flush the mortar with water. B8: The bricks at the vertical dowels will have the corresponding holes passed through the dowels before laying, and the brick holes through which the vertical dowels pass should be filled with masonry mortar to make them dense; B9. When building walls, the horizontal and vertical joints on the cavity side walls should be scraped flat as they are built, and prevent mortar and debris from falling into the cavity between the two walls and the insulation board; B10: During the construction of drywall, no joints or openings are allowed; B11, when laying the last few bricks at the top, the next section of embedded reinforcement should be inserted in advance to reliably connect with the embedded reinforcement at the bottom of the cantilever plate at the top of the wall. Then, the holes for the embedded reinforcement should be inserted and grouting should be carried out. After the grouting is completed, the top wall should be closed. B12, the decorative tile wall area is arranged according to the brick layout diagram, with staggered joints. In the hollowed-out area, non-standard bricks are used as a transition to allow the solid wall and the decorative tile wall to be staggered and connected to form a whole.

[0012] Preferably, the step eight is specifically as follows: C1, according to the requirements of the steel mesh arrangement in the detailed drawing, one steel mesh should be arranged every four bricks in the vertical direction. The horizontal tie bars should be placed as the bricks are laid and embedded in the middle of the mortar joint. The embedded length on each side of the mortar joint should not be less than 50mm. C2. The specifications, quantity, and length of the tie bars must meet the design requirements, and the ends should be equipped with 90° hooks. The tie bars embedded in the masonry should be correctly positioned and straight, and their exposed parts should not be bent arbitrarily during construction. The tie bars should be welded to the horizontal steel mesh of the wall, and the horizontal steel mesh should be prefabricated in the factory. C3, in addition to being connected to the post-embedded reinforcement bars on the corresponding structural columns, the horizontal tie bars should also be spot welded or tied to the vertical through-bars to form an integral reinforcement skeleton; C4: L-shaped ladder reinforcement is used at the corner wall position, and the length of each side meets the straight anchor requirement of not less than 150mm. Overlapping is strictly prohibited at the corner; C5, in the hollowed-out area of ​​the flower wall window, in addition to arranging tie bars, a U-shaped 10mm thick stainless steel plate strip should be arranged every 400mm, and the two ends of the plate strip should be anchored into the structural columns on both sides of the window.

[0013] In the present invention, a layered, independent non-weight-bearing component system is formed through the support of the layered load-bearing structure.

[0014] By fixing the main structure with vertical steel bars, transverse steel mesh, main structure tie steel bars, etc. (steel embedding), a stable keel force and earthquake resistance system is formed, which effectively connects the exposed brick wall to the main structure and ensures the stability of the wall.

[0015] A reinforced concrete cantilever slab is installed at the base of the structural beam, serving as both the foundation for the exposed brickwork and the supporting structure for the wall construction. Due to the significant weight of the full exposed brick wall, the extra-high decorative exposed brick wall is divided into different levels, with cantilever slabs installed in each layer to distribute the weight. The decorative exposed brick wall is constructed upwards from the reinforced concrete cantilever slabs installed at each level. Fine stone concrete is used for leveling and modularization at the base of the decorative exposed brick wall, and L-shaped decorative bricks are installed to cover the reinforced concrete cantilever slab and the fine stone concrete at the base.

[0016] It is difficult to tie the exposed brick wall horizontally. Measures such as setting up horizontal tie steel bars, structural columns, and horizontal tie beams in the exposed brick wall and the base wall, and combining them with vertical perforated steel bars, can solve the problem of horizontal tie of the wall.

[0017] Porous bricks are used to reduce the deadweight of the wall, and cantilever beams are used to share the vertical deadweight of each layer of bricks. Vertical through-steel bars and steel mesh are set inside the bricks, and grouting is done in the holes to improve the overall strength of the brick masonry.

[0018] The facade molding effect of the exposed brick wall is required to be high. According to the original building design facade drawing and rendering, BIM modeling is used to deepen the layout of the exposed bricks. For large parts, automatic layout by software is preferred. For more complex parts such as window edges, large corners, waistlines, etc., considering the fineness and aesthetics, manual CAD layout is carried out according to the principles of symmetry and whole bricks, and CAD plan drawings are generated to clarify the dimensions of each part to facilitate actual on-site construction. BIM modeling is used for special parts.

[0019] The decorative plain brick wall includes multiple rows of plain decorative bricks, each row of decorative bricks has multiple decorative bricks, and each plain decorative brick has through holes at both ends and the middle. The plain decorative bricks are laid with staggered joints, and the through holes connect the upper and lower end faces of the decorative bricks. Through-steel bars pass through the through holes, and grouting material is used to fill the holes after the steel bars pass through. In the adjacent upper and lower rows of decorative bricks, the decorative bricks in the upper row are staggered with the decorative bricks in the lower row, and the through holes at the left end (right end) of the decorative bricks in the upper row are respectively arranged opposite to the through holes at the right end (left end) of the bricks in the lower row. The other rows are laid in sequence according to this principle.

[0020] The bricks between each vertical layer of the exposed brick wall are connected by vertical through steel bars. The steel bars are 12mm in diameter and are set at different intervals according to the form of solid wall, decorative brick wall, etc. The lower and upper parts of the steel bars are connected to the cantilever beams by embedding steel bars. In order to facilitate masonry construction, the through steel bars need to be connected in sections, and the segmented connecting steel bars can be connected by overlap or welding. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the structure of the plain brick wall of the present invention; Figure 2 This is a schematic diagram of the arrangement of the structural columns of the second section of the west facade of the present invention; Figure 3 This is a schematic diagram of the arrangement of the structural columns of the second section of the east facade of the present invention; Figure 4 This is a schematic diagram of the arrangement of the structural columns of a section of the south facade of the present invention; Figure 5 This is a schematic diagram of the arrangement of the structural columns of the second section of the north facade of the present invention; Figure 6 This is a schematic diagram of the arrangement of the structural columns of the east facade of the present invention; Figure 7 This is a schematic diagram of the arrangement of the structural columns of the flower wall in the stairwell of the present invention; Figure 8 This is a schematic diagram of the arrangement position of the horizontal tie beam of the present invention; Figure 9 This is a schematic diagram of the position of the inter-layer cantilever plate of the present invention; DETAILED DESCRIPTION

[0022] The present invention will be further described below with reference to the accompanying drawings: like Figures 1 to 9 The method for constructing a plain brick wall includes the following steps: Step 1: Construction Preparation Technical preparation: (1) Before the construction of decorative bricks, you should be familiar with the drawings, the relevant structure and material requirements, and learn the relevant specifications and regulations; (2) Layout and layout of each unit according to the design drawings and specification requirements; (3) Use calibrated monitoring and measurement tools; (4) Formulate quality objectives, inspection and acceptance systems, and other measures to ensure project quality for the sub-project; (5) Study 16J107 Sandwich Insulation Wall Construction and Structural Construction, and ensure that the nodes meet the relevant requirements; (6) Masonry materials, mortar mix ratio, brick layout and masonry plan are confirmed by the supervisor; (7) Before masonry, the waterproof sealing of the screw holes on the exterior wall, the straightness of the cantilever boards, and the pulling out of the embedded reinforcement bars shall be completed.

[0023] Site preparation: (1) The model, specification, quantity, quality, stacking location, and order of the blocks delivered to the site have been inspected and accepted to meet the construction requirements. After the materials arrive at the site, they should be stacked neatly according to type and specification, and the stacking height should not exceed 2m; (2) The site has been cleaned up and the necessary machinery and equipment have been prepared and installed; (3) The previous process has been accepted and the handover procedures have been completed; (4) Sample first: Before masonry, before each group of masonry, and before each group of workers or construction team enters the site, the process sample must be verified and assessed. The process sample is selected from the working surface. If the process sample meets the requirements and is signed and approved by Party A, the supervisor, and the construction unit, large-scale masonry can be carried out; (5) The construction of the internal structure walls has been completed, the screw holes have been sealed, the waterproofing treatment has been completed, and all parties have accepted and approved; (6) The dividing line or main control line of the exposed bricks will be drawn, and all parties will review and complete the relevant procedures. Note that each wall should have at least two masonry control lines at the corners; (7) The number of brickwork blocks is pre-arranged according to the unified elevation control line. The number of brickwork blocks can be marked on the concrete structure and the size and elevation of the tie bars are marked. The number of brickwork blocks is reviewed by the technical quality inspection department and the relevant procedures are handled; (8) According to the elevation of the first layer of bricks at the bottom, check by drawing a line. If the thickness of the horizontal mortar joint exceeds 20mm, first use C20 or above fine stone concrete for leveling. It is strictly forbidden to use mortar or mortar-wrapped broken bricks for leveling, and it is not allowed to use bricks on both sides and fill the middle for leveling; (9) Before the construction of the decorative brick project, a professional construction foreman should be assigned to be responsible for the division of construction tasks, personnel arrangement, and on-site safety and civilized management of the decorative brick project. Experienced workers should be selected and fixed personnel should be assigned every day. It is strictly forbidden to change personnel during the construction. (10) Full-time quality inspectors should conduct on-site quality supervision and inspection during the construction process, conduct quality acceptance, and mark the parts that meet the quality requirements; (11) The bottom of the bricks on the first floor must be treated with moisture-proof treatment: 1) The concrete cantilever position should be painted with cement-based waterproof paint; 2) The moisture-proof layer at the bottom of the bricks can be laid with 1:2.5 cement mortar + waterproofing agent, with a thickness of 20mm. Rolled materials should not be used as the horizontal moisture-proof layer of the foundation wall; (12) Since the relative moisture content of fired bricks is low, about 7%, it is strictly forbidden to moisten the bricks during masonry to ensure the masonry strength and avoid alkali return.

[0024] Materials preparation: When raw materials such as bricks, cement, steel bars, premixed mortar, special masonry mortar, insulation materials for composite sandwich walls, and admixtures are brought to the site, their quality certificates shall be checked; raw materials requiring re-inspection shall be submitted for inspection, and the inspection results shall meet the requirements of the design and the current national standards: (1) Bricks: The variety, specifications, dimensions, appearance quality, and strength grade must comply with the design requirements of the drawings. The specifications and dimensions should be consistent, and the quality grade should meet the standard requirements and strictly comply with the requirements of the "Sintered Decorative Bricks GBT 32982-2016" and project technical standards. When entering the site, the factory certificate and type test report should be available; After the exposed bricks arrive at the site, the project department organizes material personnel, construction personnel, and team leaders to conduct acceptance inspections. The inspections and acceptances are strictly carried out in accordance with the basic requirements for the quality acceptance of incoming materials in the national standard "Code for Acceptance of Masonry Construction" (GB50203). This project has a wide variety of decorative bricks, and it is necessary to avoid incomplete brick types that affect masonry. Low-alkali aggregates should be used for exposed bricks to minimize alkali buildup after masonry. Quality and performance indicators such as water absorption and alkali content of the bricks are also strictly controlled. (2) Special premixed mortar: To control alkali backflow, this project uses alkali-free or low-alkali premixed mortar. The premixed mortar should have a factory quality certificate and should be re-inspected in batches for strength and water retention before use on site; (3) The water quality for mixing mortar should comply with the provisions of the current national standard "Standard for Water for Concrete Mixing" JGJ 63-2006, and water sources with high alkali content should not be used; (4) Wall tie bars. Tie bar mesh embedded in brick walls must be processed on-site, cut in advance, and placed on the work surface for immediate use. Tie bars are post-installed and anchored to the structure. Pull-out strength tests must be carried out before masonry construction can commence.

[0025] Test preparation: (1) The materials used in masonry structure projects should have product certificates and product performance test reports, and their quality should comply with the relevant national standards. Block materials, steel bars, etc. should also have on-site retest reports on the main properties of the materials and should comply with the design requirements. Strictly use materials that have been explicitly eliminated by the state; (2) The age of fired brick products should not be less than 28 days; (3) The porosity of fired bricks shall be no less than 25% and they shall have a decorative surface, a water absorption rate of less than 5%, and a frost resistance grade of ≥F50. The moisture content shall be less than 30%, and they shall be protected from rain during transportation and stacking; (4) Sintered porous bricks: Strength grade re-inspection, with the number of bricks delivered to the site each time not exceeding 35,000 pieces as one acceptance batch; (5) Mortar: For each inspection batch of masonry mortar not exceeding 250m³, each mixer shall be inspected at least once; (6) For each floor of the same mortar strength grade, same mix ratio, and same raw materials, one inspection batch shall be retained. For each inspection batch, no less than three groups of standard curing test blocks (3 blocks per group) shall be retained. 1) The average compressive strength of mortar test blocks in the same acceptance batch should be ≥1.1×design strength; 2) The minimum compressive strength of mortar specimens in the same acceptance batch shall be ≥ 0.85 × design strength; (7) Concrete for structural columns, ring beams, etc.: It is planned to pour once every two floors in a construction section, and make a group of test blocks (3 blocks per group); (8) Steel bar raw materials: Based on the actual situation on site, it is difficult to determine the tonnage of steel bars of various specifications entering the site each time. In order to achieve dual control of steel bars, after the steel bars arrive at the site, one group of samples of no more than 60 tons of each specification shall be taken, and the supervisor shall witness the sampling and inspection 100% of the time; (9) Anchor reinforcement pull-out test: When chemical anchor reinforcement is used for connecting the sintered brick wall with the load-bearing wall, column, or beam, a physical test should be carried out. The axial tensile non-destructive bearing capacity test value of the anchor reinforcement pull-out test should be 6.0 kN. The sampled steel bars should be free of cracks in the base material and no slippage or macroscopic cracking of the steel bars under the test value; the load value should not decrease by more than 5% during the 2-minute load holding period. (10) The tester shall complete the preparation, maintenance and inspection of the test pieces, organize the test piece data in a timely manner, and submit it to the data clerk for archiving.

[0026] Equipment preparation: (1) Mechanical equipment: mortar mixer, electronic scale or weighing scale, wheelbarrow or dump truck, bucket, brick cage, hanging basket, etc.; (2) Tools: rubber hose, sieve, shovel, half ash bucket, watering can, line support board, plumb bob, spirit level, small white line, tile trowel, mortar test mold, hundred-grid grid, steel ruler, leather counting rod, mortar consistency meter, etc.

[0027] Step 2: Anti-overturning design of exterior wall bricks and deepening of brick arrangement; S1. Anti-overturning design for walls between windows, solid walls, stairwell flower walls and walls in special locations; Anti-overturning design for the west facade of the second section: (1) Structural columns Layout location: Structural columns are added on both sides of each cantilever slab, connected to the main structure. The cross-sectional dimensions of the structural columns on the outside of the structural columns are 225*375mm, and the cross-sectional dimensions of the structural columns between the two structural columns and between the windows are 240*375mm. Purpose: 1. Serves as the window frame columns for the exterior curtain wall, with the vertical keels on both sides connected to the structural columns. 2. During the exterior decorative brickwork process, every four bricks are reinforced with secondary anchoring on the structural columns, and a horizontal reinforcement mesh (one φ6 steel bar) is placed in the horizontal mortar joint and anchored into the structural columns on both sides. (2) Horizontal tie beam Layout location: One per floor, one per floor, from the bottom layer up to the 20th layer of bricks. Both ends of the horizontal tie beam are connected to the structural column. The outer layer is made of plain bricks and the inner layer is made of plain bricks. The specifications are height * width 100 * 115mm, C25 concrete, two φ8 steel bars and stirrups φ6 @ 200. Purpose: 1. Ensure the overall stability of the facade, connecting with the structural columns and forming an integral structure with the exposed brick wall. 2. Connect with the vertical through-rebar within the wall. ⌀6 mm longitudinal perforated rebar is installed along the wall's lap holes. The rebar holes are densely filled with masonry mortar to serve as core columns and increase wall rigidity.

[0028] Anti-overturning design for the east facade of the second section: (1) Structural columns Layout location: Structural columns are added on both sides of each cantilever slab. The structural columns are connected to the main structure. The cross-sectional dimensions of the structural columns on the outside of the structural columns are 240*240mm. The cross-sectional dimensions of the structural columns between the two structural columns and between the windows are 240*240mm. Purpose: 1. Serves as the window frame columns for the exterior curtain wall, connecting the vertical studs on both sides to the structural columns. 2. During the exterior decorative brickwork installation, after every four brick layers, a secondary reinforcement mesh (one φ6 steel bar) is placed in the horizontal mortar joints, anchored into the structural columns on both sides. The reinforcement mesh on the inner brick layer can be drilled through the two structural columns on the cantilever slab to ensure overall stability. (2) Horizontal tie beam Layout location: between the two structural columns, i.e. between the windows. One per floor is sufficient. One per floor is arranged from the bottom one layer upwards to the 20th layer of bricks. Both ends of the horizontal tie beam are connected to the structural columns. The outer layer is made of plain bricks and the inner layer is made of plain bricks. The specifications are height * width 100 * 115mm. C25 concrete is used. The reinforcement is two φ8 bars and stirrups are φ6 @ 200. Purpose: 1. Ensure the overall stability of the facade, connecting with the structural columns and forming an integral structure with the exposed brick wall. 2. Connect with the vertical through-rebar within the wall. 12 mm longitudinal perforated rebar is installed along the wall's lap holes. The rebar holes are densely filled with masonry mortar to serve as core columns and increase wall rigidity.

[0029] Anti-overturning design for a section of the south facade: (1) Structural columns Layout location: Structural columns are added on both sides of each cantilever slab, and the structural columns are connected to the main structure. The cross-sectional dimensions of the structural columns on the first floor are 240*240mm; The cross-sectional dimensions of the structural columns outside the first-floor structural columns are 240*240mm, and the cross-sectional dimensions of the structural columns between the two structural columns and between the windows on the standard floors are 240*390mm; Purpose: 1. Serves as the window frame columns for the exterior curtain wall, with the vertical keels on both sides connected to the structural columns. 2. During the exterior decorative brickwork process, every four bricks are reinforced with secondary anchoring on the structural columns, and a horizontal reinforcement mesh (one φ6 steel bar) is placed in the horizontal mortar joint and anchored into the structural columns on both sides. (2) Horizontal tie beam Layout location: between the two structural columns, i.e. between the windows. One per floor is sufficient. One per floor is arranged from the bottom one layer upwards to the 20th layer of bricks. Both ends of the horizontal tie beam are connected to the structural columns. The outer layer is made of plain bricks and the inner layer is made of plain bricks. The specifications are height * width 100 * 115mm. C25 concrete is used. The reinforcement is two φ8 bars and stirrups are φ6 @ 200. Setting purpose: 1. Ensure the overall stability of the facade, connect with the structural columns, and form an integral structure with the exposed brick wall. 2. Connect with the vertical through-steel bars in the wall; set 12mm longitudinal perforated steel bars along the wall lap holes, and fill the perforated steel holes with masonry mortar to serve as core columns to increase wall rigidity. The solid wall consists of two sections of north facade and one section of east facade Anti-overturning design for the second section’s north facade: (1) Structural columns Positioning: Concrete structural columns are installed along the wall for a length no greater than 2 meters. The length of the structural columns is 240 mm. The outer skin of the columns is flush with the inner skin of the exposed brickwork along the width, and the inner skin is flush with the inner skin of the inner retaining wall. The structural columns are connected to the main structure cantilever slab with embedded reinforcement. Four 12mm diameter Grade 3 steel bars are installed inside, with stirrups of φ6 @ 200mm. C25 fine aggregate concrete is used. Purpose: 1. Install ⌀12 mm longitudinal perforated steel bars along a wall length no longer than 800 mm. Fill the perforated holes with M7.5 masonry mortar to form core columns and increase wall rigidity. Install two φ12 mm perforated steel bars at the structural column locations, and securely tie the perforated steel bars to the structural columns with U-shaped tie bars. 2. During the exterior decorative brickwork installation, install a horizontal tie steel mesh (two φ6) in the horizontal mortar joints every four brick layers, anchored into the structural columns. (2) Horizontal tie beam Layout location: One per floor, one per floor, from the bottom layer up to the 20th layer of bricks. Connect the horizontal tie beam to the structural column at the back. The outer layer is made of plain bricks and the inner layer is made of plain bricks. The specifications are height * width 100 * 115mm, C25 concrete, two φ8 steel bars and stirrups φ6@200. Purpose: 1. Ensure the overall stability of the facade, connecting with the structural columns and forming an integral structure with the exposed brick wall. 2. Connect with the vertical through-rebar within the wall. 12 mm longitudinal perforated rebar is installed along the wall's lap holes. The rebar holes are densely filled with masonry mortar to serve as core columns and increase wall rigidity.

[0030] Anti-overturning design for a section of the east facade: (1) Structural columns Positioning: Concrete structural columns are installed along the wall, no longer than 2.2m in length. The columns are 240mm long, with the outer skin flush with the inner skin of the exposed brickwork along the width, and the inner skin flush with the inner skin of the inner retaining wall. The columns are connected to the main structure cantilever slab with embedded reinforcement. Four 12mm diameter Grade 3 steel bars are installed inside, along with φ6 @ 200mm stirrups, and C25 fine aggregate concrete. Purpose: 1. Install ⌀12 mm longitudinal perforated steel bars along the wall for a length no greater than 400 mm. Fill the perforated holes with M7.5 masonry mortar to form core columns and increase wall rigidity. Install two φ12 mm perforated steel bars at the structural column locations and securely tie the perforated steel bars to the structural columns using U-shaped tie bars. 2. During the exterior decorative brickwork installation, install a horizontal tie steel mesh (two φ6) in the horizontal mortar joints every four brick layers and anchor it into the structural columns. (2) Horizontal tie beam Layout location: Two tie beams are arranged on each floor, one each at the 15th and 30th brick layers from the bottom layer upwards. The horizontal tie beam is connected to the structural column at the back. The outer layer of the tie beam is made of plain bricks and the inner layer is made of plain bricks. The specifications are height * width 100 * 115mm, C25 concrete, two φ8 steel bars and stirrups φ6 @ 200mm. Purpose: 1. Ensure the overall stability of the facade, connecting with the structural columns and forming an integral structure with the exposed brick wall. 2. Connect with the vertical through-rebar within the wall. 12 mm longitudinal perforated rebar is installed along the wall's lap holes. The rebar holes are densely filled with masonry mortar to serve as core columns and increase wall rigidity.

[0031] Anti-overturning design of stairwell flower wall: (1) Structural columns Positioning: Concrete structural columns are installed along the wall for a length no greater than 2.6m. Additional structural columns are added to each cantilever slab, connecting them to the main structure. The columns are 240mm long, with the outer skin flush with the inner skin of the exposed brickwork along the width, and the inner skin flush with the inner skin of the inner retaining wall. They are connected to the cantilever slab of the main structure with embedded rebar. Four 12mm diameter Grade 3 steel bars are installed inside, along with φ6 @ 200mm stirrups, and C25 fine aggregate concrete. Purpose: During the exterior facade decorative brickwork, every fourth brick layer is reinforced with secondary rebar anchoring in the structural columns. A horizontal wall tie mesh (two φ6 steel bars) is placed in the horizontal mortar joints and anchored into the structural columns on both sides. ⌀12 mm longitudinal perforated steel bars are installed along the wall for a length no greater than 400 mm. The perforated holes are densely filled with M7.5 masonry mortar to serve as core columns and increase wall rigidity. Two φ12 mm perforated steel bars are installed at the structural columns, and U-shaped tie bars are used to securely tie the perforated steel bars to the structural columns. (2) Horizontal tie beam Layout location: Two tie beams are arranged on each floor, one each at the 15th and 30th brick layers from the bottom layer upwards. The horizontal tie beam is connected to the structural column at the back. The outer layer of the tie beam is made of plain bricks and the inner layer is made of plain bricks. The specifications are height * width 100 * 115mm, C25 concrete, two φ8 steel bars and stirrups φ6 @ 200mm. Purpose: 1. Ensure the overall stability of the facade, connecting with the structural columns and forming an integral structure with the exposed brick wall. 2. Connect with the vertical through-rebar within the wall. ⌀12 mm longitudinal perforated rebar is installed along the wall's lap holes. The rebar holes are densely filled with masonry mortar to serve as core columns and increase wall rigidity.

[0032] Anti-overturning design for walls in special locations: Inter-story cantilever slab locations: To ensure the continuity and safety of the vertical masonry of the exterior decorative bricks, embedded or post-embedded components were reserved for each cantilever slab during structural construction. Stainless steel plate strips were subsequently installed for transition support. Based on the brick arrangement module of the facade, Z-shaped steel strips were installed on the protruding cantilever slabs to support the decorative bricks. Drain holes were provided on the corresponding cantilever slabs.

[0033] S2. Based on BIM, carry out detailed brick layout design for the second section west facade, the second section east facade, the second section north facade, the first section south facade and the first section east facade.

[0034] Step 3: Base layer processing Clean the top of the structural cantilever or concrete, and install a moisture-proof layer along the horizontal and vertical surfaces. The height of the bottom of the insulation layer near the enclosure wall should be 50mm higher than the decorative brick wall, and it should be filled with 50mm of insulation mortar. This structure raises the bottom of the insulation layer, preventing the insulation layer from absorbing water when water accumulates at the reinforced concrete cantilever. Then, apply cement-based penetrating crystalline waterproof coating on the insulation layer, and raise it 150mm above the outdoor floor. Waterproof mortar should be used for the bottom masonry mortar, and the mortar remaining on the wall surface should be cleaned as the masonry is laid; Decorative brick walls should have drainage holes at the bottom of the bottom wall and the bottom of each wall. The vertical joints of the bottom bricks at the location of the drainage holes should be empty, or a 10mm diversion pipe should be buried in the vertical joints as a drainage outlet. The distance between the drainage outlets should be 400mm.

[0035] Step 4: Measure and lay out Vertical and horizontal control lines: civil engineering benchmark points, exposed brick wall control points, exposed brick wall control lines, exposed brick wall grid control lines, and exposed brick wall control network lines. The objective of exposed brick wall measurement is to determine the usable points on the exposed brick wall based on the benchmark points measured for the main structure and the curtain wall reference points. This involves laying out a control network around the main structure, with the control network's benchmark located on the first floor. A control network is formed on the building's exterior walls, with horizontal lines along the cantilevered floor and vertical lines on either side of each window opening. Emphasis was placed on setting control lines: one horizontal control line per floor, one vertical control line per window bay on the north-south facade, and one vertical control line per window bay on the east-west facade. Based on the detailed drawings and brick layout, the positions of the exposed concrete walls, horizontal tie bars, and vertical dowels were laid out on the project entity and marked with red paint. The windows were positioned 10mm apart from the vertical curtain wall studs and evenly spaced.

[0036] Step 5: Arrange the bricks and lay the bottom According to the drawings, draw the decorative brick wall edges and the positions of door and window openings, and set up number bars at the corners and ends of the wall. Mark the number of brick layers and the location of window openings on the number bars. Hang horizontal control lines and vertical lines at the corners of the wall to ensure the horizontality and verticality of the decorative brick masonry. Then, pre-place the decorative bricks according to the construction blueprint and brick arrangement detailed drawing. When pre-placement, pay attention to the size of the mortar joints. Then, use a pencil to mark the longitudinal perforated steel bars according to the brick hole position to ensure the accuracy of the longitudinal perforated steel bar position. (1) According to the position lines of the door and window openings, carefully check the size of the wall and the buttress between the windows to make their length conform to the brick module. All factors should be considered when laying bricks. The width of the mortar joints is determined by the actual masonry size after the large sample is laid out. The size of the horizontal and vertical joints is gradually adjusted during masonry, but the total width shall not be less than 8mm and not more than 12mm. (2) After the first layer of bricks is placed, a vertical line is drawn towards the total height (floor) at intervals of three head seams to control the seam movement. At the same time, a number of layer rods are set up at the four corners of the house or at the corners of the stairwell. The level of each layer must be checked by pulling a twine. The same elevation is within the allowable deviation range. The horizontal seams should be uniform, straight and smooth.

[0037] Step 6: Vertical through-steel construction According to the perforated steel bar positions and horizontal steel bar installation requirements determined by the pre-arranged perforated bricks, longitudinal perforated steel bars are implanted in the concrete structure cantilever slab. Horizontal tie bars are implanted in the structural columns using the skin number calculation. After the reinforcement is implanted, a pull-out test should be conducted. If the pull-out test is qualified, proceed to the next step. Otherwise, repeat this step. Each batch of exposed brick walls are connected by through steel bars. The steel bars are φ12 and the spacing is arranged according to the brick arrangement drawing. The lower and upper parts of the steel bars are connected to the cantilever beams by embedding. To facilitate masonry construction, the through steel bars need to be connected in sections (1.5-2m). The segmented steel bars can be connected by electroslag pressure welding or mechanical sleeves.

[0038] Step 7: Lay bare bricks (1) Panjiao Before laying bricks, bevel the corners. Each bevel height should not exceed three layers of bricks. Newly beveled large corners should be leveled and hung straight immediately. Any deviations should be corrected immediately. When beveling the corners, carefully check the brick layers and elevations of the number rods to ensure that the horizontal joints are uniform. After beveling the large corners, recheck them. When the flatness and verticality meet the requirements, hang the lines and lay the wall. (2) Standing skin counting pole Before building a wall, you must first erect a number of poles. These poles are marked with brick thickness, mortar joint thickness, and the locations of doors, windows, floor slabs, ring beams, and other components. These poles are placed at corners and joints, with spacing no greater than 15 meters. (3) Hanging line All walls are built using double-sided hanging lines. The first layer of bricks on the ground floor or floor should be checked against the elevation of the layer number pole to prevent the top from becoming a screw wall. When laying bricks, the horizontal mortar joints should be uniform, straight and smooth. (4) Bricklaying 1) Staggered joints must be used at the top and bottom during masonry. Use the "three-in-one" masonry method of one shovel of mortar, one brick, and one squeeze, i.e., full spreading and full squeezing. Use masonry auxiliary tools, such as L-shaped and T-shaped masonry jointing plates, to improve masonry efficiency and quality. 2) Requirements for masonry mortar: Use immediately after mixing. Mortar must be used within 3 hours and overnight mortar must not be used. 3) When using the mortar laying method for masonry, the mortar laying length shall not exceed 750mm; when the temperature exceeds 30℃ during construction, the mortar laying length shall not exceed 500mm; 4) Before laying, the decorative bricks should be watered to moisten them. It is strictly forbidden to use dry bricks or bricks in a water-saturated state. The relative moisture content should be 60%~70%; 5) Masonry joints should be horizontal and vertical, and all joints should be filled with mortar; the mortar fullness of horizontal and vertical joints should not be less than 80%; 6) The horizontal mortar joint thickness and vertical mortar joint width of the masonry should be approximately 10mm, but not less than 8mm. It is strictly forbidden to use water to grout the joints. The flatness and verticality of the wall surface, as well as the thickness and fullness of the mortar joints, should be checked at any time to correct any deviations. The brickwork quality assessment should be carried out in accordance with GB50203-2011. 7) Vertical joints should be filled with mortar by squeezing or adding mortar. Do not use water to flush the joints. Bricks should be laid flat. If the inner edge is high, the wall will bulge; if the inner edge is low, the wall will collapse. Bricklaying must be centered, with the top and bottom edges aligned, and the left and right adjacent bricks aligned. 8) Pay special attention to the fact that the bricks at the vertical dowels should be laid after the corresponding holes are passed through the dowels, and the brick holes through which the vertical dowels pass should be filled with masonry mortar to make them dense; 9) When constructing walls, the horizontal and vertical joints on the cavity side walls should be scraped flat as the walls are being built, and mortar and debris should be prevented from falling into the cavity between the two walls and onto the insulation board. If any masonry debris is generated in the cavity, it should be removed promptly to avoid accumulation; 10) During the construction of exposed concrete walls, no joints or openings are allowed. Before construction, a plan of the entire wall should be drawn to clarify the details. If a part is not clearly defined in the design or is not fully prepared, the wall should not be constructed. 11) When laying the last few bricks at the top, the reinforcement should be inserted in advance to reliably connect the next section of reinforcement and the lower part of the cantilever plate at the top of the wall. Then, the holes for the reinforcement should be inserted and grouting should be carried out. After the grouting is completed, the top wall should be closed. 12) For the decorative tile wall, the arrangement shall be in accordance with the brick layout diagram, and the staggered joint method shall be adopted. In the hollowed-out parts, non-standard bricks shall be used as a transition to make the solid wall and the decorative tile wall staggered and connected to form a whole, thus ensuring the construction quality of the joints.

[0039] Step 8: Construction of horizontal tie bars 1) According to the requirements of steel mesh arrangement in the detailed drawing, one steel mesh should be arranged every four bricks in the vertical direction. The horizontal tie bars should be placed as the bricks are laid and embedded in the middle of the mortar joint. The embedded length on each side of the mortar joint should be not less than 50mm. 2) The specifications, quantity, and length of the tie bars must meet design requirements, and the ends must be fitted with 90-degree hooks. Tie bars embedded in the masonry must be correctly positioned and straight, and their exposed portions must not be bent arbitrarily during construction. Tie bars must be welded to the horizontal wall reinforcement mesh (lap length ≥ 10d). The horizontal reinforcement mesh should preferably be prefabricated in the factory. 3) In addition to being connected to the post-embedded reinforcement bars on the corresponding structural columns, the horizontal tie bars should also be spot-welded or tied to the vertical through-bars to form an integral reinforcement skeleton; 4) L-shaped ladder reinforcement is used at the corner wall position, and the length of each side must meet the straight anchor requirement of not less than 150mm. Overlapping at the corner is strictly prohibited; 5) In the hollowed-out areas of the flower wall windows, in addition to arranging tie bars, a U-shaped 10mm thick stainless steel plate strip should be arranged every 400mm, and the ends of the plate strip should be anchored into the structural columns on both sides of the window.

[0040] Step 9. Vertical through-hole grouting: After every eight layers of bricks are laid, use grouting material to grout the through-holes where the through-steel bars are located to ensure that the grout in the through-holes is dense, the through-steel bars do not shake, and the connection is reliable.

[0041] Step 10: Grouting and Cleaning: After exterior wall construction is complete and the mortar joints have reached a "fingerprint-hardened" consistency, use a professional grouting machine and specialized grouting agent to create U-shaped joints. The grout should be 10mm thick, leaving a 4-5mm cavity on the outside. The grout should be a consistent dark gray, with a glossy finish in both horizontal and vertical directions. Use a brush to scrub away any mortar and dust from the decorative brick wall surface. After cleaning, cover with a layer of plastic film to protect the finished product and prevent secondary contamination.

[0042] Step 11. Apply silicone paint: After all the exterior wall bricks are laid, apply silicone paint on the exterior facade.

[0043] The above embodiments are merely some explanations of the concept and implementation of the present invention, and are not intended to limit the same. Under the concept of the present invention, technical solutions that have not been substantially changed are still within the scope of protection.

Claims

1. A method for constructing a plain brick wall, characterized in that: The following steps are involved: Step 1: Construction preparation: prepare technology, site, materials, tests and equipment; Step 2: Anti-overturning design of exterior wall bricks and deepening of brick arrangement; Step 3: Base treatment: first set up the moisture-proof layer, then raise the bottom of the insulation layer, and then apply waterproof coating on the insulation layer; Step 4: Measure and lay out: Set one horizontal control line on each floor, one vertical control line on each window bay on the north and south facades, and one vertical control line on each window bay on the east and west facades; Step 5: Lay out the bricks and lay the foundation: first, pop out the edge line of the decorative brick wall and the position of the door and window openings, and set the skin number rods at the corners and ends of the wall. Draw the number of brick layers and the position of the window openings on the skin number rods. Hang the horizontal control line and vertical through line at the corner of the wall. Then, according to the construction blueprint and the brick arrangement detailed drawing, pre-lay the decorative bricks; Step 6: Vertical through-steel construction: longitudinal perforated steel bars are implanted in the cantilevered concrete slabs. Horizontal tie bars are implanted on the structural columns according to the calculation of the skin number. After the implantation, a pull-out test should be carried out. If the pull-out test is qualified, proceed to the next step. Otherwise, repeat this step again. Step 7: Lay the exposed bricks: first, set the corners, then set up the skin poles, and then lay the bricks on both sides; Step 8: Construction of horizontal tie bars; Step 9: Vertical through-hole grouting: After every eight layers of bricks are laid, grout the through-holes where the steel bars are located using grouting material. Step 10: Joint grouting and cleaning and protection: After the exterior wall is built, grout the U-shaped joint when the mortar joint reaches the "fingerprint hardening" state; Step 11. Apply silicone paint: After all the exterior wall bricks are laid, apply silicone paint on the exterior facade.

2. The method for constructing a plain brick wall according to claim 1, wherein: The step 2 is specifically as follows: S1. Anti-overturning design for walls between windows, solid walls, stairwell flower walls and walls in special locations; S2. Based on BIM, carry out detailed brick layout design for the second section west facade, the second section east facade, the second section north facade, the first section south facade and the first section east facade.

3. The method for constructing a plain brick wall according to claim 2, wherein: The wall between windows includes two sections of west facade, two sections of east facade and one section of south facade; The anti-overturning design of the second section of the west facade is as follows: structural columns are added on both sides of the cantilever slab of each floor, and the structural columns are connected to the main structure; a horizontal tie beam is arranged on each floor, and the ends of the horizontal tie beam are connected to the structural columns; The anti-overturning design of the second section of the east facade is as follows: structural columns are added on both sides of the cantilever slab on each floor, and the structural columns are connected to the main structure; horizontal tie beams are arranged between the two structural columns, one on each floor, and the ends of the horizontal tie beams are connected to the structural columns; The anti-overturning design of the south facade is as follows: structural columns are added on both sides of the cantilever slab on each floor, and the structural columns are connected to the main structure; horizontal tie beams are arranged between the two structural columns, one on each floor, and both ends of the horizontal tie beams are connected to the structural columns.

4. The method for constructing a plain brick wall according to claim 2, wherein: The solid wall includes two sections of north facade and one section of east facade; the anti-overturning design of the two sections of north facade is as follows: Structural columns are set up along the wall with a length of no more than 2 m, and are connected to the main structure cantilever slab with embedded reinforcement; a horizontal tie beam is arranged on each floor, and the horizontal tie beam is connected to the structural column at the back; For the anti-overturning design of the east facade of the section in question: structural columns are set along the wall with a length of no more than 2.2m, and the structural columns are connected to the cantilevered slabs of the main structure with embedded reinforcement; two horizontal tie beams are arranged on each floor, and the horizontal tie beams are connected to the structural columns at the back.

5. The method for constructing a plain brick wall according to claim 2, wherein: The anti-overturning design of the stairwell flower wall is as follows: structural columns are set along the wall with a length of no more than 2.6m, and structural columns are added on the cantilevered plates of each floor, and the structural columns are connected to the main structure; two horizontal tie beams are arranged on each floor, and the horizontal tie beams are connected to the structural columns at the back.

6. The method for constructing a plain brick wall according to claim 2, wherein: For the anti-overturning design of the wall in the special part: embedded parts or post-embedded parts are reserved at the position of each cantilever plate, stainless steel plate strips are set for transfer support, and Z-shaped steel plate strips are arranged on the protruding cantilever plates to support decorative bricks.

7. The method for constructing a plain brick wall according to claim 1, wherein: In the step 5, the decorative brick masonry pre-placed bricks are specifically A1. Based on the marked door and window opening position lines, carefully check the dimensions of the wall and buttress between windows to ensure that their lengths conform to the bricklaying module. The mortar joint widths are determined based on the actual masonry dimensions after arranging the large pattern. The sizes of the horizontal and vertical joints are gradually adjusted during masonry, but the total width must not be less than 8mm and not more than 12mm. A2. After the first layer of bricks is placed, vertical lines should be drawn to the total height with every three head seams as the interval to control the seams. At the same time, number poles should be set up at the four corners of the house or at the corners of the stairwell. The level of each layer must be checked with a hemp rope. The same elevation should be within the allowable deviation range, and the horizontal seams should be uniform, straight and smooth.

8. The method for constructing a plain brick wall according to claim 1, wherein: In the step 7, the masonry is specifically B1, when laying bricks, the joints must be staggered at the top and bottom; B2, masonry mortar is used immediately after mixing; B3, masonry is built using the mortar method; B4, water the decorative tiles to keep them moist; B5, masonry joints should be horizontal and vertical, and all joints should be filled with mortar; B6: The horizontal mortar joint thickness and vertical mortar joint width of the masonry are both 10mm. It is strictly forbidden to use water to grout the joints; B7: Vertical joints should be filled with mortar by squeezing or adding mortar. It is strictly forbidden to flush the mortar with water. B8: The bricks at the vertical dowels will have the corresponding holes passed through the dowels before laying, and the brick holes through which the vertical dowels pass should be filled with masonry mortar to make them dense; B9. When building walls, the horizontal and vertical joints on the cavity side walls should be scraped flat as they are built, and prevent mortar and debris from falling into the cavity between the two walls and the insulation board; B10: During the construction of drywall, no joints or openings are allowed; B11, when laying the last few bricks at the top, the next section of embedded reinforcement should be inserted in advance to reliably connect with the embedded reinforcement at the bottom of the cantilever plate at the top of the wall. Then, the holes for the embedded reinforcement should be inserted and grouting should be carried out. After the grouting is completed, the top wall should be closed. B12, the decorative tile wall area is arranged according to the brick layout diagram, with staggered joints. In the hollowed-out area, non-standard bricks are used as a transition to allow the solid wall and the decorative tile wall to be staggered and connected to form a whole.

9. The method for constructing a plain brick wall according to claim 1, wherein: The step eight is specifically as follows: C1, according to the requirements of the steel mesh arrangement in the detailed drawing, one steel mesh should be arranged every four bricks in the vertical direction. The horizontal tie bars should be placed as the bricks are laid and embedded in the middle of the mortar joint. The embedded length on each side of the mortar joint should not be less than 50mm. C2, the specifications, quantity and length of the tie bars shall meet the design requirements, and the ends shall be provided with 90° hooks; The tie bars embedded in the masonry must be correctly positioned and straight, and their exposed parts must not be bent arbitrarily during construction; Tie bars are welded to the horizontal steel mesh of the wall, and the horizontal steel mesh should be prefabricated in the factory; C3, in addition to being connected to the post-embedded reinforcement bars on the corresponding structural columns, the horizontal tie bars should also be spot welded or tied to the vertical through-bars to form an integral reinforcement skeleton; C4: L-shaped ladder reinforcement is used at the corner wall position, and the length of each side meets the straight anchor requirement of not less than 150mm. Overlapping is strictly prohibited at the corner; C5, in the hollowed-out area of ​​the flower wall window, in addition to arranging tie bars, a U-shaped plate strip should be arranged every 400mm, and the two ends of the plate strip should be anchored into the structural columns on both sides of the window.

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