Masonry wall end corner constructional column and construction method of masonry wall

Abstract

The invention discloses a masonry wall end corner constructional column and a construction method of a masonry wall, belongs to the field of general building construction, and solves the technical problems that according to an existing masonry formwork structure, mortar leakage is prone to being formed in a masonry mortar joint layer, and formwork-free shell building blocks are prone to formwork shifting. A vertical step-shaped tongue-and-groove is formed in an opening in one end of an L-shaped formwork-erecting-free shell building block, a butted vertical step-shaped tongue-and-groove is formed in the vertical face, butted with the opening, of the building block, so that the shell building block and a butted wall building block are butted together through the tongue-and-groove, and the phenomenon that concrete leaks slurry through a butted vertical seam is effectively prevented; the olive-shaped pulling and connecting piece is arranged between the side vertical face of the L-shaped formwork-erecting-free shell building block and the side vertical face of the wall building block, limitation on outward displacement of the L-shaped formwork-erecting-free shell building block is formed through a masonry wall, and therefore the phenomena of formwork shifting and displacement of a shell building block formwork of the turning constructional column during concrete pouring are overcome.

Description

Technical Field

[0001] The invention relates to a secondary structure masonry wall, in particular to a construction method of a corner structural column at the end of a masonry wall and a masonry wall. Background Art

[0002] In the construction of reinforced concrete frame buildings, when the primary frame structure is completed, the secondary structure is generally constructed. When the secondary structure masonry wall is constructed, structural columns need to be set in the wall; the main function of the structural column is to connect the masonry wall horizontally with the frame structure to ensure the stability of the masonry wall; the traditional construction sequence is: first reserve a position for the structural column on the floor slab, complete the binding of the steel bars in the structural column at this position, and then build the wall on the side of the structural column, and finally, support the concrete pouring formwork of the structural column attached to the completed masonry wall, and complete the construction of the structural column by pouring concrete, so as to realize the connection between the structural column and the masonry wall, so that the structural column It forms a stable whole with the wall; some secondary structure masonry walls on the floor slab are arranged in a 90-degree turn shape, which requires reserving and constructing 90-degree turn structural columns to achieve the connection of the turn wall. Since this is at the end of the wall, it is very difficult to reinforce and fix the concrete pouring formwork of the turn structural column. In order to solve this problem, technicians in the same field have made various attempts; for example: Patent No. 202311229022.0, patent name "A formwork-free construction method for masonry wall structural columns" discloses a method for constructing structural columns. The patent invents a hollow L-shaped formwork-free shell block with an open end, which is used to connect the structural column steel cage on the floor slab along The opening is installed in the hollow space of the L-shaped self-supporting formwork block to complete the closure of the outer side of the structural column, and the hollow L-shaped self-supporting formwork block replaces the concrete pouring formwork of the structural column at the turning end. Finally, the self-compacting concrete is poured into the cavity built by the self-supporting formwork block, thereby completing the construction of the concrete structural column connected to the 90-degree turning wall. This method of constructing the structural column solves the problem of supporting and fixing the formwork of the turning structural column, but there are still the following problems: (1) Since one end of the L-shaped self-supporting formwork block is open, the opening is closed by docking with the wall blocks on the outer side of the structural column, and the connection position of the adjacent upper and lower blocks is also at the masonry mortar joint. When the hollow space of the L-shaped self-supporting formwork block is When pouring concrete for structural columns, leakage is likely to occur at the closed joint gap and the upper and lower masonry joints, affecting the physical quality and appearance of the structural column; (2) If the height of the structural column reaches more than 2 meters, due to the high pressure of the concrete poured in the column, the L-shaped formwork blocks are likely to run outward and shift under the action of this pressure, resulting in distortion defects in the structural column concrete; (3) Since the same-module formwork blocks and the connected masonry walls are connected together through a tooth-shaped overlap, the tooth-shaped cavity of the formwork blocks is not fully filled with concrete, resulting in holes and honeycomb defects at the junction of the structural column and the masonry wall.

[0003] The construction sequence of the structural columns and masonry walls in the prior art is: first, use ink lines to lay out the secondary structure masonry walls and the construction position lines of the structural columns therein on the floor slab, tie and install the steel bars inside the structural columns, and then, outside the pre-constructed structural columns, build the secondary structure masonry walls on both sides of the 90-degree turn, and then, based on the two turned masonry walls, support the concrete pouring templates of the corner structural columns at the ends of the masonry walls, and lay out the tie steel bars between the structural columns and the masonry walls, and finally, pour the concrete of the structural columns, so that the concrete structural columns can play a role in pulling and connecting the walls on both sides, thereby stabilizing the walls; the above-mentioned traditional construction method The process has the following problems: (1) When the structural column is in the form of a corner, it is difficult to set up and fix the concrete pouring formwork of the structural column. Leakage and formwork slippage often occur due to loose fixation of the formwork; (2) The structural column formwork is supported and fixed on the masonry wall. Fixing measures such as drilling holes in the masonry wall are likely to cause damage to the wall; (3) The existing technology is to anchor the horizontal tie steel bars extending from the masonry into the structural column. The tie steel bars are generally arranged in the mortar joints between the upper and lower adjacent brick layers of the masonry wall. There is an unstable tie force and it is easy to cause uneven thickness of the mortar joints of the masonry wall, which affects the horizontality and straightness of the masonry wall. Summary of the invention

[0004] The invention provides a method for constructing a corner structural column at the end of a masonry wall and a masonry wall, which solves the technical problems of easy leakage of masonry mortar joint layers in the existing masonry formwork structure and easy displacement of formwork-free shell blocks.

[0005] The present invention solves the above technical problems through the following technical solutions: The overall concept of the present invention is to change the construction sequence of the traditional structural column and wall masonry. After the reinforcement binding in the structural column is completed, the unsupported formwork blocks and the wall blocks of the same layer are laid synchronously. In the same layer of masonry, the unsupported formwork blocks outside the reinforcement in the structural column are first laid, and then the wall blocks at the two turning points of the same layer are laid, so as to complete a closed integrated turning wall column body. Finally, a concrete pouring feeding bell is set on the uppermost unsupported formwork blocks, and the material is fed through the bell to pour concrete to form a turning concrete structural column, thereby avoiding the support of the formwork, overcoming the difficulty of formwork support, avoiding the occurrence of leakage and formwork running, and accelerating the construction progress.

[0006] A method for constructing a corner structural column at the end of a masonry wall and a masonry wall, comprising a front wall block at a corner, a right wall block at a corner and an L-shaped free-support formwork block, a corner structural column casting space is provided between the front wall block at the corner and the right wall block at the corner, main reinforcements in the structural column and stirrups in the structural column are provided in the corner structural column casting space, and an opening is provided at the left front side of the L-shaped free-support formwork block, comprising the following steps: The first step is to embed an L-shaped elastic wall liner into the inner cavity of the L-shaped free-support formwork building block. The shape of the L-shaped elastic wall liner is exactly the same as that of the L-shaped free-support formwork building block, and an inner liner opening is also provided on the L-shaped elastic wall liner. The second step is to set a longitudinal rear wedge-shaped groove on the outer side wall of the opening of the L-shaped free formwork block, and set longitudinal front wedge-shaped grooves on the left and right outer side walls of the rear end of the front wall block at the corner; set a transverse left wedge-shaped groove on the right end outer side wall of the L-shaped free formwork block, and set transverse right wedge-shaped grooves on the front and rear outer side walls of the left end of the right wall block at the corner; set an opening vertical tongue and groove on the opening of the L-shaped free formwork block; set a front wall block vertical tongue and groove on the rear side facade of the front wall block at the corner; The third step is to place the L-shaped support-free formwork block embedded with the L-shaped elastic wall liner in the corner structural column casting space, so that the main reinforcement in the structural column and the stirrups in the structural column pass through the opening and the liner opening into the hollow hole of the L-shaped elastic wall liner, and complete the masonry of the L-shaped support-free formwork block in the corner structural column casting space outside the main reinforcement in the structural column; Step 4: Process a groove for embedding the longitudinal reinforcement bars on the top surface of the front wall block at the corner, and process a groove for embedding the transverse reinforcement bars on the top surface of the right wall block at the corner; Step 5: Butt-build the front wall blocks at the corners on the front facade of the L-shaped formwork blocks, so that the vertical tongue and groove of the opening is butt-jointed with the vertical tongue and groove of the front wall blocks; then, insert the longitudinal dumbbell-shaped tie strip between the corresponding longitudinal rear wedge-shaped groove and the longitudinal front wedge-shaped groove; Step 6: Butt-build the right wall blocks at the corner on the right facade of the L-shaped free-support formwork blocks, and embed a horizontal dumbbell-shaped tie strip between the corresponding horizontal left wedge-shaped groove and the horizontal right wedge-shaped groove; Step 7: Tie the left end of the transverse connecting steel bar to the main reinforcement and stirrups in the structural column, and embed the right part of the transverse connecting steel bar into the embedding groove of the transverse connecting steel bar; tie the rear end of the longitudinal connecting steel bar to the main reinforcement and stirrups in the structural column, and embed the front part of the longitudinal connecting steel bar into the embedding groove of the longitudinal connecting steel bar; Step 8: Repeat steps 3 to 7 to build the upper layer of masonry, and the upper and lower layers of masonry blocks are bonded and built with cement mortar; Step 9: When the masonry wall is built to the top, a concrete pouring horn is set on the L-shaped support-free formwork block at the top; Step 10. Pour self-compacting concrete into the hollow space of the L-shaped elastic wall inner liner that runs upward and downward through the concrete pouring trumpet, thereby completing the construction of the turning structural column.

[0007] The top end of the L-shaped free-support formwork block is provided with a top tongue of the L-shaped free-support formwork block, and the bottom end of the L-shaped free-support formwork block is provided with a bottom tongue of the L-shaped free-support formwork block; the upper L-shaped free-support formwork block is butt-jointed with the top tongue of the L-shaped free-support formwork block of the lower L-shaped free-support formwork block through the bottom tongue of the L-shaped free-support formwork block.

[0008] The module of the L-shaped free formwork blocks, the module of the front wall blocks at the corner and the module of the right wall blocks at the corner are the same.

[0009] The present invention replaces the support of the structural column formwork with the construction of the formwork-free shell building blocks at the pre-construction position of the structural column on the floor slab, thereby constructing a concrete pouring space for the structural column; by arranging a tongue and groove with a step at the joint of the building blocks, the defect of easy leakage of mortar at the connection of the building blocks is overcome; and an elastic thick-walled liner is arranged in the hollow L-shaped cage outline building block, and the expansion amount of the concrete poured in the structural column is absorbed by the contraction of the wall of the elastic thick-walled liner, thereby reducing the expansion pressure of the poured concrete on the formwork-free shell building block; and by cooperating with the wedge-shaped block on the shell building block and the wedge-shaped groove on the wall building block to limit the shell building block, the phenomenon of mold running and displacement is avoided, thereby realizing the high-efficiency and high-quality construction of the structural column. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a schematic diagram of the structure of the present invention; Figure 2 It is a structural schematic diagram of an L-shaped free-support formwork building block 2 of the present invention; Figure 3 is a schematic structural diagram of an L-shaped elastic wall liner 7 of the present invention; Figure 4 It is a schematic structural diagram of the front wall block 6 at the corner of the present invention; Figure 5 It is a schematic structural diagram of the wall block 5 on the right side of the corner of the present invention; Figure 6 It is a schematic structural diagram of the longitudinal dumbbell-shaped tie strip 19 of the present invention. DETAILED DESCRIPTION

[0011] The present invention is described in detail below in conjunction with the accompanying drawings: A masonry formwork structure for a corner structural column at the end of a masonry wall, comprising a front wall block 6 at the corner and a right wall block 5 at the corner, wherein the front masonry wall where the front wall block 6 at the corner is located and the right masonry wall where the right wall block 5 at the corner is located are 90 degrees, and a corner structural column casting space 1 is provided between the front wall block 6 at the corner and the right wall block 5 at the corner, and a structural column column inner main reinforcement 3 and a structural column column inner stirrup 4 are provided in the corner structural column casting space 1, and the corner structural column plays the role of pulling and connecting the front masonry wall and the right masonry wall, An L-shaped free-support formwork block 2 is arranged in the corner structural column casting space 1 outside the main reinforcement 3 in the structural column and the stirrup 4 in the structural column. The L-shaped free-support formwork block 2 is stacked up and down to form a closed concrete casting template for the corner structural column. An opening 13 is arranged on the left front side of the L-shaped free-support formwork block 2. The opening 13 is arranged to transfer the steel bars in the column through the opening to the hollow cavity of the L-shaped free-support formwork block 2, so that the L-shaped free-support formwork block 2 can be built in the corner structural column casting space 1 with the main reinforcement of the structural column. An L-shaped elastic wall liner 7 is embedded in the cavity, and an liner opening 14 is arranged on the left front side of the L-shaped elastic wall liner 7. The shape of the L-shaped elastic wall liner 7 is exactly the same as the shape of the L-shaped support-free formwork block 2. The L-shaped elastic wall liner 7 is arranged to absorb the expansion of the structural column concrete and reduce the outward pressure of the structural column pouring concrete on the L-shaped support-free formwork block 2, causing the displacement phenomenon; the main reinforcement 3 in the structural column and the stirrup reinforcement 4 in the structural column are arranged in the hollow space of the L-shaped elastic wall liner 7; on the top port of the L-shaped support-free formwork block 2, a An L-shaped free-support formwork block is provided with a top tongue 8, an L-shaped free-support formwork block 2 bottom tongue 9 is provided on the bottom port of the L-shaped free-support formwork block 2, and an opening vertical tongue 16 is provided on the opening 13 of the L-shaped free-support formwork block 2; a front wall block vertical tongue 15 is provided on the rear facade of the front wall block 6 at the corner, and the front wall block vertical tongue 15 is butted with the opening vertical tongue 16; these tongues are butted in the form of steps, which effectively closes the butt joints and avoids the overflow of concrete in the closed hollow hole through the masonry joints.

[0012] A longitudinal rear wedge-shaped groove 16 is provided on the outer side wall at the opening 13 of the L-shaped support-free formwork block 2, and the longitudinal rear wedge-shaped groove 16 is provided on the outer side facade of the L-shaped support-free formwork block 2. A longitudinal front wedge-shaped groove 17 is provided on the left and right outer side walls at the rear end of the front wall block 6 at the corner. The longitudinal rear wedge-shaped groove 16 and the longitudinal front wedge-shaped groove 17 are arranged in a one-to-one correspondence, and a longitudinal dumbbell-shaped tie strip 19 is embedded between the longitudinal rear wedge-shaped groove 16 and the longitudinal front wedge-shaped groove 17. The longitudinal dumbbell-shaped tie strip 19 connects the butt-jointed L-shaped support-free formwork block 2 and the front wall block 6 at the corner together to overcome the problem of pouring concrete of the structural column. The expansion pressure of concrete on the front wall block 6 at the corner causes the L-shaped support-free formwork block 2 to shift backward to overcome the reaction force of the expansion pressure; a transverse left-side wedge-shaped groove 11 is provided on the front and rear outer sides of the transverse section of the L-shaped support-free formwork block 2, and a right-side wedge-shaped groove 18 is provided on the front and rear outer sides of the left end of the right-side wall block 5 at the corner, and a transverse dumbbell-shaped tie strip is provided between the transverse left-side wedge-shaped groove 11 and the right-side wedge-shaped groove 18; the transverse dumbbell-shaped tie strip serves to connect the right-side wall block 5 at the corner with the L-shaped support-free formwork block 2, thereby overcoming the leftward displacement of the L-shaped support-free formwork block 2 caused by the pouring of the structural column concrete.

[0013] The modulus of the L-shaped free formwork block 2, the modulus of the front wall block 6 at the corner and the modulus of the right wall block 5 at the corner are the same, so that the construction of the L-shaped free formwork block 2 and the walls on both sides of the turning point can be carried out synchronously with high quality; the upper and lower adjacent L-shaped free formwork blocks 2 are all overlapped together by the block tongue and groove, and the L-shaped free formwork blocks 2 are overlapped up and down and connected to the wall by dumbbell-shaped tie strips, which also overcomes the phenomenon that the traditional L-shaped free formwork blocks 2 and the horse-tooth-type overlapping of the blocks produce the problem of insufficient concrete pouring and filling in the horse-tooth-shaped cavity; self-compacting concrete is poured in the hollow space of the L-shaped free formwork block 2 that runs through from top to bottom, and the pouring of self-compacting concrete can save the vibration link, which is convenient for the pouring of structural columns.

[0014] A method for constructing a corner structural column at the end of a masonry wall and a masonry wall, comprising the following steps: The first step is to embed an L-shaped elastic wall liner 7 into the inner cavity of the L-shaped free formwork block 2. The shape of the L-shaped elastic wall liner 7 is exactly the same as that of the L-shaped free formwork block 2. The L-shaped elastic wall liner 7 is also provided with an inner liner opening 14. The L-shaped elastic wall liner 7 can be embedded in the inner cavity of the L-shaped free formwork block 2 in advance. The side wall of the L-shaped elastic wall liner 7 has a certain degree of elasticity and can absorb the expansion of concrete. The second step is to set a longitudinal rear wedge-shaped groove 10 on the outer side wall at the opening 13 of the L-shaped free formwork shell building block 2, and the longitudinal rear wedge-shaped groove 10 is set on the outer side wall surface, and the groove is isolated from the inner cavity of the L-shaped free formwork shell building block 2 and cannot be connected; on the left and right outer side walls of the rear end of the front wall building block 6 at the corner, longitudinal front wedge-shaped grooves 17 are respectively set; on the right end outer side wall of the L-shaped free formwork shell building block 2, a transverse left wedge-shaped groove 11 is set, and on the front and rear outer side walls of the left end of the right wall building block 5 at the corner, a transverse right wedge-shaped groove 18 is respectively set, and each groove can be made together with the building block in advance; on the opening 13 of the L-shaped free formwork shell building block 2, an opening vertical tongue and groove 16 is set; on the rear side facade of the front wall building block 6 at the corner, a front wall building block vertical tongue and groove 15 is set; the two step tongue and groove are overlapped together to play a role in reliably closing the connecting seam; The third step is to place the L-shaped support-free formwork block 2 embedded with the L-shaped elastic wall liner 7 in the corner structural column casting space 1, so that the main reinforcement 3 in the structural column and the stirrups 4 in the structural column enter the hollow hole of the L-shaped elastic wall liner 7 through the opening 13 and the liner opening 14, and complete the masonry of the L-shaped support-free formwork block 2 in the corner structural column casting space 1 outside the main reinforcement 3 in the structural column; the opening is set to facilitate the L-shaped support-free formwork block 2 to be laid without interference from the steel bars in the column; Step 4: A longitudinal connecting steel bar embedding groove 21 is processed on the top surface of the front wall block 6 at the corner, and a transverse connecting steel bar embedding groove 19 is processed on the top surface of the right wall block 5 at the corner; the connecting steel bar is arranged in the groove, which improves the connecting force of the structural column on the masonry wall and ensures the consistency of the block module; Step 5: Butt-build the front wall block 6 at the corner on the front facade of the L-shaped free formwork block 2, so that the open vertical tongue and groove 16 is butt-jointed with the vertical tongue and groove 15 of the front wall block; then, the longitudinal dumbbell-shaped tie strip 12 is embedded between the corresponding longitudinal rear wedge-shaped groove 10 and the longitudinal front wedge-shaped groove 17; the longitudinal dumbbell-shaped tie strip 12 serves to overcome the pressure of the poured concrete on the L-shaped free formwork block 2 to drift backward; Step 6: Butt-build the right wall block 5 at the corner on the right side of the L-shaped free formwork block 2, and insert a transverse dumbbell-shaped tie strip between the corresponding left transverse wedge-shaped groove 11 and the right transverse wedge-shaped groove 18; the function of the transverse dumbbell-shaped tie strip is to overcome the leftward drift of the L-shaped free formwork block 2 under the pressure of the poured concrete; Step 7: Tie the left end of the transverse connecting steel bar 20 to the main reinforcement 2 in the structural column and the stirrup 3 in the structural column, and embed the right part of the transverse connecting steel bar 20 into the transverse connecting steel bar embedding groove 19; tie the rear end of the longitudinal connecting steel bar 22 to the main reinforcement 2 in the structural column and the stirrup 3 in the structural column, and embed the front part of the longitudinal connecting steel bar 22 into the longitudinal connecting steel bar embedding groove 21; Step 8: Repeat steps 3 to 7 to build the upper layer of masonry, and the upper and lower layers of masonry blocks are bonded and built with cement mortar; Step 9: When the masonry wall is built to the top, a concrete pouring horn is set on the L-shaped support-free formwork block 2 at the top; Step 10: Pour self-compacting concrete into the hollow space of the L-shaped elastic wall liner 7 that passes through the concrete pouring trumpet mouth upward and downward, thereby completing the construction of the turning structural column.

Claims

1. A method for constructing a corner structural column at the end of a masonry wall and a masonry wall, comprising a front wall block (6) at the corner, a right wall block (5) at the corner and an L-shaped formwork-free block (2); a corner structural column casting space (1) is provided between the front wall block (6) at the corner and the right wall block (5) at the corner; main reinforcement (3) and stirrups (4) in the structural column are provided in the corner structural column casting space (1); an opening (13) is provided on the left front side of the L-shaped formwork-free block (2); It is characterized by the following steps: The first step is to embed an L-shaped elastic wall liner (7) into the inner cavity of the L-shaped free formwork building block (2), wherein the shape of the L-shaped elastic wall liner (7) is exactly the same as that of the L-shaped free formwork building block (2), and an inner liner opening (14) is also provided on the L-shaped elastic wall liner (7); Step 2: a longitudinal rear wedge-shaped groove (10) is provided on the outer side wall at the opening (13) of the L-shaped free formwork block (2); a longitudinal front wedge-shaped groove (17) is provided on the left and right outer side walls at the rear end of the front wall block (6) at the corner; a transverse left wedge-shaped groove (11) is provided on the right end outer side wall of the L-shaped free formwork block (2); a transverse right wedge-shaped groove (18) is provided on the front and rear outer side walls at the left end of the right wall block (5) at the corner; an opening vertical tongue (16) is provided on the opening (13) of the L-shaped free formwork block (2); and a front wall block vertical tongue (15) is provided on the rear side elevation of the front wall block (6) at the corner; The third step is to place the L-shaped support-free formwork block (2) embedded with the L-shaped elastic wall liner (7) in the corner structural column casting space (1), so that the main reinforcement (3) in the structural column and the stirrups (4) in the structural column enter the hollow hole of the L-shaped elastic wall liner (7) through the opening (13) and the liner opening (14), and complete the masonry of the L-shaped support-free formwork block (2) in the corner structural column casting space (1) outside the main reinforcement (3) in the structural column; Step 4: a longitudinal reinforcement embedding groove (21) is machined on the top surface of the front wall block (6) at the corner, and a transverse reinforcement embedding groove (19) is machined on the top surface of the right wall block (5) at the corner; Step 5: Butt-build the front wall blocks (6) at the corners on the front facade of the L-shaped formwork blocks (2) so that the open vertical tongue and groove (16) and the front wall block vertical tongue and groove (15) are butt-jointed together; then, insert the longitudinal dumbbell-shaped tie strip (12) between the corresponding longitudinal rear wedge-shaped groove (10) and the longitudinal front wedge-shaped groove (17); Step 6: Butt-build the right wall block (5) at the corner onto the right side of the L-shaped free formwork block (2), and embed a horizontal dumbbell-shaped tie strip between the corresponding left horizontal wedge-shaped groove (11) and the right horizontal wedge-shaped groove (18); Step 7: tie the left end of the transverse connecting steel bar (20) to the main steel bar (2) in the structural column and the stirrup (3) in the structural column, and embed the right part of the transverse connecting steel bar (20) into the transverse connecting steel bar embedding groove (19); tie the rear end of the longitudinal connecting steel bar (22) to the main steel bar (2) in the structural column and the stirrup (3) in the structural column, and embed the front part of the longitudinal connecting steel bar (22) into the longitudinal connecting steel bar embedding groove (21); Step 8: Repeat steps 3 to 7 to build the upper layer of masonry, and the upper and lower layers of masonry blocks are bonded and built with cement mortar; Step 9: When the masonry wall is built to the top, a concrete pouring horn is provided on the L-shaped support-free formwork block (2) at the top; Step 10: pour self-compacting concrete into the hollow space of the L-shaped elastic wall liner (7) that passes through the concrete pouring bell mouth, thereby completing the construction of the turning structural column.

2. A method for constructing a corner structural column at the end of a masonry wall and a masonry wall according to claim 1, characterized in that: An L-shaped free-support formwork block top end tongue (8) is provided on the top end of the L-shaped free-support formwork block (2), and an L-shaped free-support formwork block bottom end tongue (9) is provided on the bottom end of the L-shaped free-support formwork block (2); the upper L-shaped free-support formwork block (2) is butted together with the L-shaped free-support formwork block top end tongue (8) of the lower L-shaped free-support formwork block via the L-shaped free-support formwork block bottom end tongue (9).

3. A method for constructing a corner structural column at the end of a masonry wall and a masonry wall according to claim 2, characterized in that: The modulus of the L-shaped free formwork block (2), the modulus of the front wall block (6) at the corner, and the modulus of the right wall block (5) at the corner are the same.

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