Construction method of glass brick outer wall on high and large space canopy

Abstract

The application discloses a construction method of a glass brick outer wall of a high and large space canopy, which comprises the following steps: S1, construction preparation; S2, construction process simulation; S3, steel column and steel beam hoisting; S4, steel cable installation; S5, canopy plate installation; S6, glass brick wind-resistant column installation; S7, glass brick layout and lofting; S8, tieback installation; S9, glass brick wall masonry; S10, glass brick wall joint filling; and S11, brick joint coating brushing. The construction method avoids the difficulty of the large self-weight of the original concrete canopy and the large structural load, cancels the formwork support system required by the concrete canopy pouring, saves the formwork and support materials, reduces the occupied area of the construction site, avoids the time required by the glass brick outer wall masonry and the like concrete canopy to reach the design strength, and shortens the construction period.

Description

Technical Field

[0001] This invention relates to the field of building construction technology, and in particular to a method for constructing glass brick exterior walls on tall, spacious canopies. Background Technology

[0002] Glass brick exterior walls are increasingly appearing in large-space functional rooms such as lecture halls, gymnasiums, canteens, and libraries in modern school buildings due to their beautiful shape, good lighting, and convenient construction. The construction method of building glass brick exterior walls on a traditional concrete canopy, with the concrete canopy placed on the second-floor cantilever slab, presents many problems: (1) the cantilever slab structural beams should be set to 1.2m high while ensuring the width of the same column is 600mm, making the construction of the oversized beams difficult and the quality hard to guarantee; (2) a large number of dense formwork support frames need to be set up on the construction site, posing safety hazards, and the canopy forming effect is bulky and has a poor sense of space. How to solve the construction problems of glass brick exterior walls on concrete canopies is a technical topic worthy of study. Summary of the Invention

[0003] The purpose of this invention is to address the shortcomings of existing technologies by providing a method for constructing glass brick exterior walls on tall, spacious canopies, comprising the following steps: S1. Construction preparation; S2. Construction process simulation: Establish a BIM construction model to simulate the entire construction process of the glass brick exterior wall; S3. Steel Column and Steel Beam Lifting: Steel column lifting is carried out according to the installation sequence of each section to form a stable structural system. Before lifting, the steel column is placed horizontally on the wooden blocks. The three actions of hooking, rotating, and moving are carried out slowly and alternately. When in place, it is slowly lowered. After the steel column is lifted, it is corrected with crowbars, jacks, and chain hoists. After meeting the installation accuracy requirements, welding or bolt tightening is carried out to fix it. Rust is removed and paint is applied to complete the installation of the steel column. Before lifting the steel beam, the surface of the steel beam is cleaned and the attached connecting plate is assembled. The steel beam lifting sequence is the main beam first and then the secondary beam. After the steel beam is installed, the contact direction between the steel beam and the connecting plate should be checked. S4. Steel Cable Installation: The anchor plates for the steel cables at the column bases are pre-embedded during the construction of the structural slab. The anchor bars are Φ14 with an anchoring length of 300mm. The anchor bars are welded to the embedded plates using through-hole welding. Two L50×5 angle steel bars are welded to the upper part of the embedded plates to fix the steel cables. S5. Installation of canopy panels: Divide the whole steel plate into several smaller steel plates. Divide the steel plate between the two steel columns into two pieces and use the skip welding method for construction. Use L80×5mm angle steel to connect the two steel plates temporarily fixed by the skip welding method together. Remove the angle steel after all the welds are completed and cooled. S6. Installation of wind-resistant columns for glass bricks: The wind-resistant columns at the glass brick locations are made of I-beams, with welded connections at the top and bottom of the columns. The top of the columns is connected to the pre-embedded steel plates during the concrete structure pouring, and the bottom of the columns is connected to the steel beams of the steel canopy. S7. Glass brick layout and layout: Check the length of the glass brick wall according to the marked glass brick position lines; S8. Tie bar installation: Frameless masonry method, i.e., the left and right ends of the glass brick layout detail drawing are concrete structural columns: the end tie bars are fixed by rebar installation, and the continuous tie bars are extended by welding; Framed masonry method, i.e., at the connection with the wind-resistant column in the glass brick layout detail drawing: the end tie bars are fixed to the wind-resistant column by welding, and the continuous tie bars are extended by lap welding. S9. Glass brick wall construction: The main components are 190×190×95 glass bricks with a 5mm groove around the perimeter. They are constructed with precast mortar and a tie bar of 2Φ6mm round steel bar is set for every 3 bricks. There are a total of 9 glass bricks within the locking range of the horizontal and vertical tie bars. S10. Grouting of glass brick walls: Use a special grout for grouting; S11. Applying grout coating: Apply a transparent, elastic, waterproof coating to each grout line of the glass bricks to achieve a waterproof effect.

[0004] Preferably, in step S3, when the steel beam is installed in place, the span of the joint with the hole deviation is adjusted with the help of punch pins, and ordinary bolts are used for temporary connection. The number of ordinary installation bolts shall not be less than 30% of the total number of bolts at the node, and shall not be less than two. When dealing with the bolt holes that have deviation, a hole reamer is used to enlarge the holes.

[0005] Preferably, in step S4, the angle steel and the steel cable are connected by a pin shaft, the steel cable is a steel core wire rope with a nominal diameter of 28mm, the nominal tensile strength of the wire rope is not less than 1870Mpa, and the minimum breaking strength of the wire rope is not less than 526KN.

[0006] Preferably, in step S7, when the length of the glass brick wall does not conform to the model drawing, the width of the H-beams or steel bars on both sides of the brick wall and the width of the brick joints are adjusted, and the adjusted widths on both sides of the wall are kept consistent.

[0007] Preferably, in step S9, the glass brick wall is constructed using a double-sided hanging line. Several support points are set in the middle of the glass brick wall to find the elevation of the line, so that the height of the entire length is consistent. When each layer of glass brick wall is constructed, a level line must be hung and the line must be threaded through to check the level, so that the horizontal mortar joints are straight, smooth, uniform and consistent.

[0008] Preferably, in step S9, a cross-shaped plastic positioning bracket is used to ensure that the joints are flat. After the base layer is leveled, the cross-shaped plastic positioning bracket is first broken into "L" or "T" shapes and installed one by one between the first layer of glass bricks and the base layer. At the same time, the side of each glass brick is coated with mortar to make the glass bricks solidify into one piece. When building the second layer, a cross-shaped plastic positioning bracket is installed for each glass brick, and so on, gradually building higher.

[0009] Preferably, in step S9, during the construction of the glass brick exterior wall, Φ6mm plain round steel bars are used as reinforcing bars. Bidirectional steel bars are placed horizontally every three bricks. One end of the steel bar is welded to the H-beam, and the other end is connected to the concrete structure by rebar anchoring. Bidirectional steel bars are placed vertically every three bricks. The lower part of the steel bar is welded to the steel beam of the steel canopy, and the upper part is connected to the concrete structural slab by rebar anchoring.

[0010] Preferably, in step S9, an expansion joint is set every 3.5m in length or height of the glass brick wall. The glass brick wall is divided into three smaller sections by wind-resistant columns. The expansion joint is constructed by filling the inside with special mortar and then applying finishing mortar and elastic rubber strips to the outside.

[0011] Preferably, in step S10, the grouting is done immediately after the vertical joint mortar is poured, and the grouting depth is 8-10mm. After 2-3 hours, the grouting can be done, and 2% gypsum powder by weight of cement is added to the grouting mortar.

[0012] Compared with existing technologies, the beneficial effects of this invention are as follows: This invention provides a construction method for glass brick exterior walls on tall, spacious canopies, using steel canopies instead of traditional concrete canopies. Before pouring the concrete structural slab, the steel columns and cables are positioned, and the embedded structural reinforcement is welded and fixed. After the exterior wall scaffolding is removed, the steel canopy frame columns and beams are hoisted, and the canopy slab is laid after the steel cables are installed. The lower column bases of the wind-resistant columns of the glass brick exterior wall above the steel canopy are welded and fixed to the steel beams, and the upper column tops are welded and fixed to the embedded parts in the concrete. Finally, the glass brick exterior wall is constructed. This construction method avoids the difficulties of the original concrete canopy's large self-weight and high structural load, eliminates the formwork and support system required for concrete canopy pouring, saves formwork and support materials, reduces the construction site area, and avoids the time required for the concrete canopy to reach its design strength before the glass brick exterior wall is constructed, thus shortening the construction period. The tensioning of the steel cables on both sides of the canopy also ensures the safety and quality of the structure. This technology is highly operable, mature, and reliable, and its advantages are even more obvious in the construction of glass brick exterior walls on tall, spacious canopies. Attached Figure Description

[0013] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings: Figure 1 This is a flowchart of the construction process for the glass brick exterior wall on a steel canopy.

[0014] Figure 2 This is a cross-sectional view of the glass brick exterior wall on the steel canopy.

[0015] Figure 3 This is an elevation view of the glass brick exterior wall on a steel canopy.

[0016] Figure 4 This is a plan view of the bottom node of the steel cable.

[0017] Figure 5 This is a cross-sectional view of the bottom node of the steel cable.

[0018] Figure 6 This is a plan view of the corner joint of the steel column.

[0019] Figure 7 This is a cross-sectional view of the corner joint of a steel column.

[0020] Figure 8 This is a plan view of the top node of the wind-resistant column.

[0021] Figure 9 This is a cross-sectional view of the top node of the wind-resistant column.

[0022] Figure 10 This is a schematic diagram of a frameless glass brick masonry node.

[0023] Figure 11 This is a schematic diagram of a framed masonry node for glass bricks.

[0024] Figure 12 This is a schematic diagram of the expansion joint node of glass bricks.

[0025] The components include: 1. Steel column; 2. Steel beam; 3. Steel cable; 4. Canopy panel; 5. Glass brick; 6. Wind-resistant column; 10. L50×5 angle steel; 11. Column corner anchor plate; 12. Anchor bar; 13. Anchor bolt; 14. Stiffening rib plate; 15. Embedded part; 16. Φ16 anchor bar; 18. Horizontal tie bar; 19. Vertical tie bar; 20. Cross plastic positioning bracket; 21. Joint filler; 22. Concrete structural column; 23. Mortar; 24. Elastic rubber strip; 25. Brick joint coating. Detailed Implementation

[0026] The technical solution of the present invention will be described in detail below with reference to the accompanying drawings, but the scope of protection of the present invention is not limited to the embodiments described.

[0027] Reference Figures 1 to 12The present invention discloses a method for constructing a glass brick exterior wall on a tall, spacious canopy, comprising the following steps: S1: Construction Preparation A task force was established to tackle the construction challenges of installing glass brick exterior walls on steel canopies, and the organizational structure and division of labor were clearly defined.

[0028] Based on the original design drawings, the concrete canopy was optimized to address the issues of its large self-weight and difficulty in controlling construction quality. The concrete canopy was changed to a steel structure canopy through design modification.

[0029] Based on a careful analysis of the construction drawings and optimized drawings, we understood the design intent and depth, and formulated a construction plan for glass bricks on the canopy suitable for on-site construction.

[0030] Based on the actual site conditions, the feasibility of the plan, and the quality of the finished product, the final construction process for glass bricks was determined.

[0031] All workers received technical briefings and pre-job technical training.

[0032] S2: Construction process simulation: A BIM construction model was established to simulate the entire construction process of the glass brick exterior wall, ensuring the stability of the steel canopy and the forming quality of the glass brick exterior wall throughout the construction process.

[0033] S3: Lifting of steel column 1 and steel beam 2: Before lifting, steel column 1 should be placed horizontally on the wooden blocks; during lifting, the steel column should not be dragged on the ground, and a certain height is required when rotating; the three actions of hooking, rotating, and moving should be carried out slowly and alternately, and the column should be lowered slowly when in place.

[0034] When calibrating, factors such as axis, verticality, and elevation should be comprehensively considered, and the deviation value of each item should meet the design and specification requirements.

[0035] The steel columns should be hoisted in accordance with the installation sequence of each section, and a stable structural system should be formed in a timely manner.

[0036] After the steel column is hoisted, it is aligned using pry bars, jacks, chain hoists and other equipment. Once the installation accuracy requirements are met, Φ16 anchor bars 16 or anchor bolts 13 are welded and tightened. The Φ16 anchor bars 16 are welded and fixed to the embedded parts 15. Rust is removed and paint is applied to complete the installation of the steel column. After the steel column is installed, stiffening ribs are installed on the outside for reinforcement.

[0037] Before hoisting steel beam 2, clean the surface of the steel beam to remove dirt; remove rust from the connecting plates and friction surfaces that have surface rust.

[0038] The steel beams to be hoisted should be equipped with the attached connecting plates and the pre-installed bolts should be packaged with tools.

[0039] When hoisting and positioning the steel beams, pay attention to their vertical orientation to ensure the correct installation position.

[0040] When installing steel beams, for joints with misaligned holes, use punch pins to adjust the span spacing and temporarily connect them with ordinary bolts. The number of ordinary installation bolts shall not be less than 30% of the total number of bolts at that node, and shall not be less than two. When dealing with bolt holes that have become misaligned, only a hole reaming machine may be used to enlarge the holes; gas cutting is not permitted.

[0041] To ensure structural stability, measurements and corrections are carried out promptly after the steel columns and beams within a certain range are installed to form a frame.

[0042] The hoisting sequence of steel beams should strictly follow the order of main beams first, then secondary beams.

[0043] After the steel beams are installed, the contact direction between the steel beams and the connecting plates should be checked.

[0044] S4: Steel cable 3 installation The anchor plate 11 of the steel cable 3 column base is pre-embedded during the construction of the structural slab. The anchor bar 12 is Φ14 with an anchoring length of 300mm. The anchor bar and the embedded plate are connected by through-hole welding. The upper part of the embedded plate is welded with L50×5 angle steel 10 to fix the steel cable 3. The L50×5 angle steel 10 and the steel cable are connected by pin shaft.

[0045] The steel cables are made of steel-core steel wire rope with a nominal diameter of 28mm. The nominal tensile strength of the wire rope is not less than 1870MPa, and the minimum breaking strength is not less than 526KN. The joints are double-ear joints, which have force transmission and adjustment functions. The steel cables must be tensioned during construction, and the steel plates are installed only after the structure is stable.

[0046] S5: Installation of canopy panel 4: The canopy panel 4 is made of 5mm thick steel plate. This was done to reduce the weight of the steel structure. However, this also led to a problem: the 5mm steel plate deformed due to heat during welding, causing the surface of the canopy panel 4 to bend and deform. After research by the on-site problem-solving team, the following three measures were ultimately decided to be taken to ensure the flatness of the steel plate.

[0047] The whole steel plate was divided into several smaller steel plates. The steel plate between the two steel columns was divided into two pieces, the largest of which was 2300mm×1150mm.

[0048] Considering the maximum weld length is 2300mm, the skip welding method is used on site to disperse the heat of the weld and avoid or reduce deformation. The length of each weld segment is about 200mm.

[0049] A rigid fixing method is used, in which two steel plates temporarily fixed by skip welding are connected together using L80×5mm angle steel. The angle steel is removed after the weld is completed and cooled. Finally, the weld is ground smooth with a grinder, and the surface is coated with anti-rust paint, i.e., fluorocarbon paint.

[0050] S6: Installation of glass brick wind-resistant column 6: The wind-resistant column 6 at the glass brick location uses HW125×125×6.5×9 H-beams (with the groove facing outwards). The top and bottom of the column are welded together. The top of the column is connected to the pre-embedded steel plate during the concrete structure pouring, and the bottom of the column is connected to the steel beam of the steel canopy.

[0051] S7: Glass brick layout and layout (5 rows) Before glass brick installation, the layout should be detailed according to the actual dimensions on site to prevent situations where the bricks are not large enough to fit a full size. Since the production and processing cycle for half-bricks is relatively long, detailed layout planning in advance will shorten the construction period when it is unavoidable to use half-bricks.

[0052] According to the marked glass brick position lines, check whether the length of the glass brick wall conforms to the model drawing. If not, the width of the H-beams or steel bars on both sides of the brick wall and the width of the brick joints should be adjusted appropriately. The adjusted widths on both sides of the wall should be consistent.

[0053] S8: Tie bar installation: The frameless masonry method, i.e., the glass brick layout detail drawing has concrete structural columns at both ends 22: the end tie bars are fixed by anchoring, and the continuous tie bars are extended by welding.

[0054] The framed masonry method, that is, at the connection between the glass brick layout and the wind-resistant column in the detailed drawing: the end tie bars are fixed to the wind-resistant column by welding, and the continuous tie bars are extended by lap welding.

[0055] S9: Glass brick wall construction: The glass brick exterior wall construction mainly consists of 190×190×95 glass bricks with a 5mm groove around the perimeter. It is constructed using precast mortar 23. Every 3 bricks are reinforced with a 2Φ6mm round steel bar as a tie bar. The horizontal tie bar 18 and the vertical tie bar 19 lock a total of 9 glass bricks within the area.

[0056] The brickwork should be laid with a guide line on both sides. Since the glass brick wall is quite long, several support points should be set up in the middle to determine the correct elevation of the guide line, ensuring a consistent height throughout the entire length. A level line should be used during the laying of each layer of glass bricks, and the line should be threaded through to check for levelness, ensuring that the horizontal mortar joints are straight, smooth, and uniform.

[0057] To ensure a smooth, uniform, and aesthetically pleasing joint pattern in the glass brick wall, a special support for controlling joint width—the cross-shaped plastic positioning bracket 20—must be used. The specific method is as follows: After leveling the base layer, cut the cross-shaped plastic positioning bracket 20 into "L" or "T" shapes and install them one by one between the first layer of glass bricks and the base layer. Then, smooth the mortar onto the base layer. Simultaneously, the sides of each glass brick must be fully coated with mortar to ensure the glass bricks solidify together. When building the second layer, install one cross-shaped plastic positioning bracket after each glass brick, and so on, gradually increasing the height.

[0058] In the construction of glass brick exterior walls, Φ6mm plain round steel bars must be used as reinforcing steel. Horizontally, bidirectional reinforcing bars are placed every three bricks. Depending on site conditions, one end of the reinforcing bar is welded to an H-beam, and the other end is connected to the concrete structure using a rebar anchoring method. Vertically, bidirectional reinforcing bars are placed every three bricks. The lower part of the reinforcing bars is welded to the steel beams of the steel canopy, and the upper part is connected to the concrete structural slab using a rebar anchoring method. Excess mortar in the glass bricks must be removed during the initial setting of the mortar; vertical and horizontal corrections are strictly prohibited after initial setting. (Note: Glass brick walls are constructed using grouting or pouring methods. Mortar should be piled up fully. Never use a trowel to strike the glass bricks to avoid breakage.) To prevent damage caused by the horizontal (vertical) expansion or contraction deformation of the glass brick wall, an expansion joint must be installed every 3.5m in length or height. The glass brick wall is divided into three smaller sections by wind-resistant columns. Therefore, the expansion joint is constructed by filling the inside with special mortar, followed by finishing mortar and elastic rubber strips 24 on the outside.

[0059] S10: Grouting for glass brick walls: The grout lines on the glass brick wall are part of the wall's texture. Grout lines can be recessed, flat, or semi-circular, and are generally filled with a special grout 21.

[0060] During masonry work, the horizontal mortar joints and vertical joint widths are generally controlled to be 8-10mm. Jointing is done immediately after the vertical joint mortar is poured, with a joint depth of 8-10mm. The joints should be consistent in depth and thoroughly cleaned. Grouting can begin 2-3 hours after grouting. Add 2% (by weight of cement) of gypsum powder to the grouting mortar to accelerate setting.

[0061] S11: Apply brick joint coating 25: Waterproofing the glass bricks on the exterior wall is a crucial step. After the grout is filled, the grout in the gaps of the glass bricks must be completely dry before proceeding with waterproofing. First, a transparent elastic waterproof coating is applied to each gap of the glass bricks to achieve a waterproof effect.

[0062] As described above, although the invention has been shown and described with reference to specific preferred embodiments, it should not be construed as limiting the invention itself. Various changes in form and detail may be made without departing from the spirit and scope of the invention as defined in the appended claims.

Claims

1. A method for constructing a glass brick exterior wall on a tall, spacious canopy, characterized in that, Includes the following steps: S1. Construction preparation; S2. Construction process simulation: Establish a BIM construction model to simulate the entire construction process of the glass brick exterior wall; S3. Steel Column and Steel Beam Lifting: Steel column lifting is carried out according to the installation sequence of each section to form a stable structural system. Before lifting, the steel column is placed horizontally on the wooden blocks. The three actions of hooking, rotating, and moving are carried out slowly and alternately. When in place, it is slowly lowered. After the steel column is lifted, it is corrected with crowbars, jacks, and chain hoists. After meeting the installation accuracy requirements, welding or bolt tightening is carried out to fix it. Rust is removed and paint is applied to complete the installation of the steel column. Before lifting the steel beam, the surface of the steel beam is cleaned and the attached connecting plate is assembled. The steel beam lifting sequence is the main beam first and then the secondary beam. After the steel beam is installed, the contact direction between the steel beam and the connecting plate should be checked. S4. Steel cable installation: The anchor plate of the steel cable column foot is pre-embedded during the construction of the structural slab. The anchor bar is Φ14 with an anchor length of 300mm. The anchor bar and the embedded plate are welded together by through-hole welding. 2L50×5 angle steel is welded to the upper part of the embedded plate to fix the steel cable. S5. Installation of canopy panels: Divide the whole steel plate into several smaller steel plates. Divide the steel plate between the two steel columns into two pieces and use the skip welding method for construction. Use L80×5mm angle steel to connect the two steel plates temporarily fixed by the skip welding method. Remove the angle steel after all the welds are completed and cooled. S6. Installation of wind-resistant columns for glass bricks: The wind-resistant columns at the glass brick locations are made of I-beams, with welded connections at the top and bottom of the columns. The top of the columns is connected to the pre-embedded steel plates during the concrete structure pouring, and the bottom of the columns is connected to the steel beams of the steel canopy. S7. Glass brick layout and layout: Check the length of the glass brick wall according to the marked glass brick position lines; S8. Tie bar installation: Frameless masonry method, i.e., the left and right ends of the glass brick layout detail drawing are concrete structural columns: the end tie bars are fixed by rebar installation, and the continuous tie bars are extended by welding; Framed masonry method, i.e., at the connection with the wind-resistant column in the glass brick layout detail drawing: the end tie bars are fixed to the wind-resistant column by welding, and the continuous tie bars are extended by lap welding. S9. Glass brick wall construction: The main components are 190×190×95 glass bricks with a 5mm groove around the perimeter. They are constructed with precast mortar and a tie bar of 2Φ6mm round steel bar is set for every 3 bricks. There are a total of 9 glass bricks within the locking range of the horizontal and vertical tie bars. S10. Grouting of glass brick walls: Use a special grout for grouting; S11. Applying grout coating: Apply a transparent, elastic, waterproof coating to each grout line of the glass bricks to achieve a waterproof effect.

2. The construction method for glass brick exterior walls on tall, spacious canopies according to claim 1, characterized in that: In step S3, when the steel beam is installed in place, the span spacing of the joint with the hole deviation is adjusted with the help of punch pins, and ordinary bolts are used for temporary connection. The number of ordinary bolts installed shall not be less than 30% of the total number of bolts in the node, and shall not be less than two. When dealing with the bolt holes that have deviation, a hole reamer is used to enlarge the holes.

3. The construction method for glass brick exterior walls on tall, spacious canopies according to claim 1, characterized in that: In step S4, the angle steel and the steel cable are connected by a pin shaft. The steel cable is a steel core wire rope with a nominal diameter of 28mm. The nominal tensile strength of the wire rope is not less than 1870Mpa, and the minimum breaking strength of the wire rope is not less than 526KN.

4. The construction method for glass brick exterior walls on tall, spacious canopies according to claim 1, characterized in that: In step S7, when the length of the glass brick wall does not conform to the model drawing, adjust the width of the H-beams or steel reinforcement supports on both sides of the brick wall and the width of the brick joints, and keep the adjusted widths on both sides of the wall consistent.

5. The construction method for glass brick exterior walls on tall, spacious canopies according to claim 1, characterized in that: In step S9, the glass brick wall is constructed using a double-sided hanging line. Several support points are set in the middle of the glass brick wall to find the elevation of the line and ensure that the height is consistent throughout the entire length. A level line must be hung when each layer of glass brick wall is constructed, and the line must be threaded through to check for flatness, so that the horizontal mortar joints are straight, smooth, uniform and consistent.

6. The construction method for glass brick exterior walls on tall, spacious canopies according to claim 1, characterized in that: In step S9, cross-shaped plastic positioning brackets are used to ensure the smoothness of the mortar joints. After the base layer is leveled, the cross-shaped plastic positioning brackets are cut into "L" or "T" shapes and installed one by one between the first layer of glass bricks and the base layer. At the same time, the sides of each glass brick are coated with mortar to make the glass bricks solidify into one piece. When building the second layer, a cross-shaped plastic positioning bracket is installed for each glass brick, and so on, gradually building higher.

7. The construction method for glass brick exterior walls on tall, spacious canopies according to claim 1, characterized in that: In step S9, during the construction of the glass brick exterior wall, Φ6mm plain round steel bars are used as reinforcing bars. Horizontally, bidirectional steel bars are placed every three bricks. One end of the steel bar is welded to the H-beam, and the other end is connected to the concrete structure by rebar anchoring. Vertically, bidirectional steel bars are placed every three bricks. The lower part of the steel bar is welded to the steel beam of the steel canopy, and the upper part is connected to the concrete structural slab by rebar anchoring.

8. The construction method for glass brick exterior walls on tall, spacious canopies according to claim 1, characterized in that: In step S9, an expansion joint is set every 3.5m in length or height of the glass brick wall. The glass brick wall is divided into 3 smaller sections by wind-resistant columns. The expansion joints are filled with special mortar on the inside and finished with finishing mortar and elastic rubber strips on the outside.

9. The construction method for glass brick exterior walls on tall, spacious canopies according to claim 1, characterized in that: In step S10, the joint is marked immediately after the vertical joint mortar is poured. The joint depth is 8-10mm. After 2-3 hours, the joint can be grouted. 2% gypsum powder by weight of cement is added to the grouted mortar.

Images