A masonry formwork structure for a corner structural column at the end of a masonry wall

Abstract

The invention discloses a masonry formwork structure for a corner structural column at the end of a masonry wall, belongs to the field of general building construction, and solves the technical problems of easy leakage of masonry mortar mortar joint layers and easy displacement of formwork-free shell blocks existing in the existing masonry formwork structure; a vertical step-shaped tongue and groove is arranged at an opening at one end of an L-shaped formwork-free shell block, and a vertical step-shaped tongue and groove for docking is arranged on a block facade docking with the opening, so that the shell block and the docking wall block are docked together through the tongue and groove, which effectively prevents the occurrence of concrete leakage through the docking vertical seam; the invention arranges an olive-shaped pull-connecting piece between the side facade of the L-shaped formwork-free shell block and the side facade of the wall block, and uses the masonry wall to form a restriction on the outward displacement of the L-shaped formwork-free shell block, thereby overcoming the phenomenon of mold displacement and displacement of the shell block formwork of the turning structural column when pouring concrete.

Description

Technical Field

[0001] The invention relates to a secondary structure masonry wall, in particular to a masonry template structure of a corner structural column at the end of 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 structural columns mainly play the role of horizontally connecting the masonry wall 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 side wall 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 of the structural column to the masonry wall and make the structural The columns and walls form a stable whole; 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 to tie steel bars to the structural columns on the floor slab The L-shaped formwork blocks are placed along the opening into the hollow space of the L-shaped formwork blocks to complete the closure of the outer side of the structural column. The hollow L-shaped formwork blocks are used to replace the concrete pouring template of the structural column at the turning end. Finally, the self-compacting concrete is poured into the cavity built by the formwork blocks, thereby completing the construction of the concrete structural column connected to the 90-degree turning wall. This method of constructing structural columns 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 formwork blocks is open, the opening is closed by connecting 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 L-shaped formwork blocks are hollow, the L-shaped formwork blocks are not easy to be broken. (1) 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 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. Summary of the invention

[0003] The invention provides a masonry formwork structure for a corner structural column at the end of a masonry wall, which solves the technical problems of the existing masonry formwork structure that the masonry mortar slurry joint layer is prone to leakage and the formwork-free shell building blocks are prone to formwork displacement.

[0004] The present invention solves the above technical problems through the following technical solutions: The overall concept of the present invention is: a vertical step-shaped tongue and groove is provided at an opening at one end of an L-shaped free-support formwork shell block, and a vertical step-shaped tongue and groove with a butt joint is provided on the vertical surface of the block butted with the opening, so that the shell block and the butt wall block are butted together through the tongue and groove, which effectively prevents the concrete from leaking through the butt joint vertical joint; the butt joints of two layers of L-shaped free-support formwork shell blocks adjacent to each other in the upper and lower directions are also designed to be connected in a tongue and groove connection manner, which also effectively prevents the concrete poured in the hollow cage of the shell block from leaking through the upper and lower butt joints; due to The L-shaped unsupported formwork shell building block is connected to the two masonry walls at a 90-degree angle. Therefore, when concrete is poured in the closed cage of the hollow L-shaped unsupported formwork shell building block, under the extrusion of the concrete, the L-shaped unsupported formwork shell building block can only run out of the formwork and shift in the direction away from the two masonry walls. The present invention arranges an olive-shaped pull-in piece between the side facade of the L-shaped unsupported formwork shell building block and the side facade of the wall building block, and utilizes the masonry wall to form a restriction on the outward displacement of the L-shaped unsupported formwork shell building block, thereby overcoming the phenomenon of the shell building block formwork of the turning structural column running out of the formwork and shifting when pouring concrete.

[0005] A masonry formwork structure for a corner structural column at the end of a masonry wall comprises a front wall block at the corner and a right wall block at the corner, a corner structural column casting space is arranged between the front wall block at the corner and the right wall block at the corner, a structural column inner main reinforcement and a structural column inner stirrup are arranged in the corner structural column casting space, an L-shaped support-free formwork block is arranged in the corner structural column casting space outside the structural column inner main reinforcement and the structural column inner stirrup, an opening is arranged on the left front side of the L-shaped support-free formwork block, an L-shaped elastic wall liner is embedded in the inner cavity of the L-shaped support-free formwork block, and a An inner shell opening is arranged, and the shape of the L-shaped elastic wall inner shell is exactly the same as the shape of the L-shaped support-free formwork block; the main reinforcement in the structural column and the stirrups in the structural column are arranged in the hollow space of the L-shaped elastic wall inner shell; the top end of the L-shaped support-free formwork block is provided with a top tongue of the L-shaped support-free formwork block, the bottom end of the L-shaped support-free formwork block is provided with a tongue, and the opening of the L-shaped support-free formwork block is provided with an opening vertical tongue; the front side wall block vertical tongue is provided on the rear side facade of the front side wall block at the corner, and the front side wall block vertical tongue is butted with the opening vertical tongue.

[0006] A longitudinal rear wedge-shaped groove is arranged on the outer side wall at the opening of the L-shaped support-free formwork block, and longitudinal front wedge-shaped grooves are arranged on the left and right outer side walls at the rear end of the front wall block at the corner, and a longitudinal dumbbell-shaped tie strip is embedded between the longitudinal rear wedge-shaped groove and the longitudinal front wedge-shaped groove; transverse left wedge-shaped grooves are arranged on the front and rear outer side facades of the transverse section of the L-shaped support-free formwork block, and right wedge-shaped grooves are arranged on the front and rear outer side facades of the left end of the right wall block at the corner, and a transverse dumbbell-shaped tie strip is arranged between the transverse left wedge-shaped groove and the right wedge-shaped groove.

[0007] The modulus of the L-shaped unsupported formwork blocks, the modulus of the front wall blocks at the corner and the modulus of the right wall blocks at the corner are the same; the upper and lower adjacent L-shaped unsupported formwork blocks are all overlapped together through the block tongue and groove; self-compacting concrete is poured in the hollow space of the L-shaped unsupported formwork blocks that pass through the upper and lower parts.

[0008] 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

[0009] 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

[0010] 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.

[0011] 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.

[0012] 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.

Claims

1. 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, 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 inner main reinforcement (3) and a structural column inner stirrup (4) are provided in the corner structural column casting space (1), characterized in that: 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. An opening (13) is arranged on the left front side of the L-shaped free-support formwork block (2). An L-shaped elastic wall liner (7) is embedded in the inner cavity of the L-shaped free-support formwork block (2). 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 that of the L-shaped free-support formwork block (2). The main reinforcement (3) in the structural column and the stirrup (4) in the structural column are arranged on the left front side of the L-shaped free-support formwork block (2). The hollow space of the L-shaped elastic wall liner (7); the top end of the L-shaped free-support formwork block (2) is provided with an L-shaped free-support formwork block top end tongue (8); the bottom end of the L-shaped free-support formwork block (2) is provided with an L-shaped free-support formwork block (2) bottom end tongue (9); the opening (13) of the L-shaped free-support formwork block (2) is provided with an opening vertical tongue (16); the rear side elevation of the front side wall block (6) at the corner is provided with a front side wall block vertical tongue (15), and the front side wall block vertical tongue (15) and the opening vertical tongue (16) are butted together.

2. A masonry formwork structure for a corner structural column at the end of a masonry wall according to claim 1, characterized in that: A longitudinal rear wedge-shaped groove (16) is provided on the outer side wall at the opening (13) of the L-shaped free-support formwork block (2); longitudinal front wedge-shaped grooves (17) are provided on the left and right outer side walls at the rear end of the front wall block (6) at the corner; 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); a transverse left wedge-shaped groove (11) is provided on the front and rear outer side facades of the transverse section of the L-shaped free-support formwork block (2); a right wedge-shaped groove (18) is provided on the front and rear outer side facades of the left end of the right wall block (5) at the corner; and a transverse dumbbell-shaped tie strip is provided between the transverse left wedge-shaped groove (11) and the right wedge-shaped groove (18).

3. A masonry formwork structure for a corner structural column at the end of a masonry wall according to claim 2, characterized in that: The modulus of the L-shaped free-support formwork blocks (2), the modulus of the front wall blocks (6) at the corner, and the modulus of the right wall blocks (5) at the corner are the same; the upper and lower adjacent L-shaped free-support formwork blocks (2) are all stacked together through the block tongue and groove; and self-compacting concrete is poured in the hollow space of the L-shaped free-support formwork blocks (2) that penetrate the upper and lower parts.

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