Early form removal support system for multi-rib floor

Abstract

The application relates to a kind of early release formwork support systems of multi-rib floor; The support system includes array arrangement mould unit and the support frame arranged in mould unit;Mould unit includes longitudinal edge frame, horizontal edge frame, movable formwork;The front end of longitudinal edge frame is provided with plug and splicing groove A;The rear end of longitudinal edge frame is provided with splicing groove B and splicing groove B;Plug is inserted into splicing groove;Splicing groove and plug are respectively provided with connecting hole A, connecting hole B in corresponding position;Connecting hole A and connecting hole B are correspondingly matched;Splicing groove A and splicing groove B are respectively provided with connecting hole C and connecting hole D;Horizontal edge frame bottom is provided with splicing groove C;Splicing groove C is buckled with splicing groove A and splicing groove B;Splicing groove C is provided with connecting hole E corresponding to connecting hole C and connecting hole D;Movable formwork is inverted, and edge is connected with the top of longitudinal edge frame and horizontal edge frame;Support frame is connected with mould unit.The support system of the application can be adaptively combined according to design requirements on construction site, and the flow shape is enhanced, and the application range is wide.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of dense rib floor pouring, in particular to a dense rib floor early demolding formwork support system. BACKGROUND

[0002] Generally, the one-way or two-way rib-shaped floor with rib spacing ≤1.5m is called dense rib floor. The two-way dense rib floor has better stress performance due to the two-way load bearing. The dense rib floor is composed of thin plates and rib beams with small spacing. For example, the authorized patent No. CN111691593B provides a dense rib support system and its construction method. In the support system, first, the corresponding frame is set according to the layout area of the dense rib floor; the frame is a horizontal plug-in structure; then the movable formwork is laid on the frame. In the construction site, the overall size and shape of the frame are designed according to the size and shape of the dense rib floor, which is suitable for the pouring of a large number of standard dense rib floor slabs. Once the size and shape of the dense rib floor are different, a new frame with appropriate shape and size needs to be designed for use. Therefore, the dense rib support system in the patent is only suitable for the pouring of a large number of standard dense rib floor slabs, and is not suitable for the pouring of non-standard dense rib floor slabs, which has weak flowability and small application range. SUMMARY

[0003] The purpose of the present application is to solve the above problems and provide a dense rib floor early demolding formwork support system.

[0004] The technical solution of the present application is: a dense rib floor early demolding formwork support system, comprising a plurality of arrayed mold units and a support frame arranged on the mold units; each mold unit corresponds to a cavity on the dense rib floor; the arrangement of the mold units is arranged according to the design requirements, so the number of mold units is also limited by the design requirements; the support frame supports each mold unit, which is beneficial to the normal solidification of concrete; the types of support frames are various; most of the support frames are currently fastener type scaffolds; the support frame can also be used as the support frame in the authorized patent No. CN111691593B Figure 8The displayed support frame includes a longitudinal frame, a transverse frame, and a movable mold shell. The lower half of the front end of the longitudinal frame has an insert block extending outwards. The lower half of the rear end of the longitudinal frame has a slot corresponding to the insert block. Adjacent longitudinal frames have insert blocks inserted into the slots to form a vertically integrated structure. The upper half of the front end of the longitudinal frame has symmetrical splicing grooves (A and B) on both sides. The upper half of the rear end of the longitudinal frame has symmetrical splicing grooves (B). Corresponding positions of the slots and insert blocks have connecting holes (A and B). Connecting holes (A and B) are matched. Pins or screws can be inserted into connecting holes (A and B) for horizontal positioning, strengthening the connection strength of the spliced ​​longitudinal frames. Adjacent spliced ​​longitudinal frames can have splicing grooves (A and B) joined together. Near the inner ends of splicing grooves (A and B) are connecting holes (C and D, respectively). The transverse frame... Symmetrical splicing grooves C are provided at both ends of the bottom; splicing groove C engages with splicing grooves A and B, which are spliced ​​together, to connect the horizontal frame with the spliced ​​vertical frame into one unit; the vertical and horizontal frames form a basic frame structure; splicing groove C has connecting holes E that correspond to connecting holes C and D; connecting holes E overlap with connecting holes C and D respectively, and a pin is inserted or a screw is screwed in to limit the horizontal movement and strengthen the connection between the horizontal and vertical frames; the movable formwork is a basin structure, which is the mold structure used for conventional ribbed floor slab casting; the movable formwork is inverted in the middle of the basic frame structure, and concrete is poured into the cavity above the movable formwork to form ribs; the edge of the movable formwork connects to the top of the vertical and horizontal frames for support; the top of the support frame connects to the bottom of the vertical or horizontal frame for support.

[0005] Preferably, steps A are symmetrically provided on both sides of the top of the longitudinal frame; steps B are symmetrically provided on both sides of the top of the transverse frame; the height of steps A and B is equivalent to the thickness of the edge of the movable shell; in this way, the edge of the inverted movable mold shell can be flush with the top of the longitudinal frame and the top of the transverse frame, ensuring the quality of the dense rib forming after the concrete solidifies.

[0006] Furthermore, the widths of steps A and B are approximately equal to the width of the edge of the movable shell, so as to obtain the contact area between the edge of the movable shell and the horizontal and vertical frame edges, ensuring the stability of the support.

[0007] Preferably, the bottom center of the vertical frame has a protrusion A arranged along the length of the vertical frame; the bottom center of the horizontal frame has a protrusion B arranged along the length of the horizontal frame; the top of the support frame has several U-shaped parts; protrusions A and B are inserted into the inner cavity of the U-shaped parts; the U-shaped parts horizontally limit protrusions A and B, ensuring the horizontal stability of the vertical and horizontal frames, and thus ensuring the positional stability of the movable mold shell.

[0008] Further, the U-shaped part is vertically downwardly extended with a threaded column; the threaded column is threadedly matched with the top of the support frame; a locking nut is threadedly matched with the middle of the threaded column; the bottom of the locking nut is connected with the top of the support frame; the threaded column can be vertically lifted or lowered by rotating itself, and the height of the U-shaped part is finely adjusted so that the U-shaped part can tightly press the convex A and the convex B; the locking nut locks the adjusted threaded column, and the stability of the support of the U-shaped part to the mold unit is ensured.

[0009] Further, the inner distance of the U-shaped part is greater than the width of the convex A and the convex B, so that the vertically lifted U-shaped part can be clamped on the convex A or the convex B.

[0010] Preferably, the contact area of the commonly used fastener type scaffold with the ground is too small, and in order to increase the contact area of the support frame with the ground, a plurality of base plates are arranged at the bottom of the support frame, so as to improve the overall support stability of the support frame.

[0011] The application has the following advantages:

[0012] (1) The support unit of the application is a detachable connection structure; the longitudinal frame is stacked on the support frame; the transverse frame is stacked on the longitudinal frame; the movable formwork is invertedly buckled on the mutually stacked longitudinal frame and transverse frame; and the bottom of the longitudinal frame and the bottom of the transverse frame are supported by the support frame. In this way, the support of the support frame can be guided to the movable formwork through the longitudinal frame and the transverse frame, so as to support the poured concrete; because the support system of the application can support the movable formwork to the support unit, i.e. one dense rib cavity, the movable formwork can be adaptively combined according to the design requirements on the construction site, so as to enhance the flow and be widely applicable.

[0013] (2) The top of the longitudinal frame is provided with a step A; the top of the transverse frame is provided with a step B; the height of the step A and the step B is equivalent to the thickness of the edge of the movable formwork; in this way, the edge of the invertedly buckled movable formwork can be flush with the top of the longitudinal frame and the top of the transverse frame, so as to ensure the dense rib forming quality after the concrete is solidified.

[0014] (3) The bottom of the longitudinal frame is provided with a convex A; the bottom of the transverse frame is provided with a convex B; the top of the support frame is provided with a U-shaped part matched with the convex A and the convex B; the U-shaped part horizontally limits the convex A and the convex B, so as to ensure the horizontal stability of the longitudinal frame and the transverse frame, and further ensure the position stability of the movable formwork. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 is a perspective view of the dense rib floor system early formwork support system of the application;

[0016] Figure 2 is a side view of Figure 1 ;

[0017] Figure 3 is an enlarged view of Figure 2 ;

[0018] Figure 4 is an A-A sectional view of Figure 3 ;

[0019] Figure 5 is a perspective view of a set of 3x3 movable formworks with one corner movable formwork removed;

[0020] Figure 6 is a top view of Figure 5 ;

[0021] Figure 7 is a B-B sectional view of Figure 6 ;

[0022] Figure 8 is a C-C sectional view of Figure 6 ;

[0023] Figure 9 is a perspective view of a longitudinal frame Figure 1 ;

[0024] Figure 10 is a perspective view of a longitudinal frame Figure 2 ;

[0025] Figure 11 is a perspective view of a transverse frame Figure 1 ;

[0026] Figure 12 is a perspective view of a transverse frame Figure 2 ;

[0027] In the figure: 1. mold unit, 11. longitudinal frame, 111. plug, 1111. connecting hole A, 112. slot, 1121. connecting hole B, 113. splicing groove A, 1131. connecting hole C, 114. splicing groove B, 1141. connecting hole D, 115. step A, 116. protrusion A, 12. transverse frame, 121. splicing groove C, 1211. connecting hole E, 122. step B, 123. protrusion B, 13. movable formwork, 14. basic frame structure, 2. support frame, 21. U-shaped piece, 22. threaded column, 23. locking nut, 24. pad. DETAILED DESCRIPTION

[0028] Example One: refer to Figures 1-12A kind of early release formwork support system of multi-rib floor, including several array arrangements mould unit 1 and the support frame 2 of being arranged in mould unit 1;Each mould unit 1 corresponds a cavity on one multi-rib floor;The arrangement of mould unit 1 is arranged according to design requirement, so the number of mould unit 1 is also design requirement defined;Support frame 2 is to each mould unit 1 is supported, it is favorable to normal solidification of concrete;The type of support frame 2 has multiple;Most support frame 2 is fastener type scaffold at present;It can also use such as authorized announcement number CN111691593B Figure 8 The support frame 2 shown in the figure is used;In this embodiment, the conventional fastener type scaffold is selected as the support frame 2;Each mould unit 1 includes longitudinal edge frame 11, horizontal edge frame 12 and movable formwork 13;The lower half of the front end of the longitudinal edge frame 11 extends outwardly to form an insertion block 111;The lower half of the rear end of the longitudinal edge frame 11 is provided with an insertion slot 112 corresponding to the insertion block 111;The insertion block 111 of the adjacent longitudinal edge frame 11 is inserted into the insertion slot 112 to form an integral longitudinal direction;The upper half of the front end of the longitudinal edge frame 11 is provided with symmetrically arranged splicing slots A 113 on both sides;The upper half of the rear end of the longitudinal edge frame 11 is provided with symmetrically arranged splicing slots B 114 on both sides;The insertion slot 112 and the insertion block 111 are respectively provided with a connecting hole A 1111 and a connecting hole B 1121 at corresponding positions;The connecting hole A 1111 and the connecting hole B 1121 are correspondingly matched;The connecting hole A 1111 and the connecting hole B 1121 can be inserted into a pin shaft or screwed into a screw to limit the horizontal position and strengthen the connection strength of the integrated longitudinal edge frame 11;The adjacent splicing longitudinal edge frame 11 can splice the splicing slots A 113 and the splicing slots B 114 into one body;The splicing slots A 113 and the splicing slots B 114 are respectively provided with a connecting hole C 1131 and a connecting hole D 1141 at positions close to the inner ends;The horizontal edge frame 12 is provided with symmetrically arranged splicing slots C 121 at both ends of the bottom;The splicing slots C 121 are buckled with the splicing slots A 113 and the splicing slots B 114 spliced together, so that the horizontal edge frame 12 and the integrated longitudinal edge frame 11 are connected into one body;The longitudinal edge frame 11 and the horizontal edge frame 12 form a basic frame structure 14;The splicing slots C 121 are provided with a connecting hole E 1211 corresponding to the connecting hole C 1131 and the connecting hole D 1141;The connecting hole E 1211 is respectively coincided with the connecting hole C 1131 and the connecting hole D 1141, and is inserted into a pin shaft or screwed into a screw to limit the horizontal position and strengthen the connection strength of the horizontal edge frame 12 and the longitudinal edge frame 11;The movable formwork 13 is a basin structure and is a conventional mould structure used for multi-rib floor reverse moulding;The movable formwork 13 is reversely buckled in the middle of the basic frame structure 14, and the concrete is poured into the cavity above the movable formwork 13 to form a multi-rib;The edge of the movable formwork 13 is connected with the top of the longitudinal edge frame 11 and the horizontal edge frame 12 to obtain support;The top of the support frame 2 is connected with the bottom of the longitudinal edge frame 11 or the bottom of the horizontal edge frame 12 to support.

[0029] Compared with the prior art, the support unit of the present application is a detachable connection structure; the longitudinal frame 11 is stacked on the support frame 2; the transverse frame 12 is stacked on the longitudinal frame 11; the movable formwork 13 is inverted and buckled on the mutually stacked longitudinal frame 11 and transverse frame 12; and the bottom of the longitudinal frame 11 and the bottom of the transverse frame 12 are supported by the support frame 2. In this way, the support of the support frame 2 can be guided to the movable formwork 13 through the longitudinal frame 11 and the transverse frame 12 to support the poured concrete; and because the support system of the present application can support the movable formwork 13 in the form of a support unit, i.e., a dense rib cavity, it can be adaptively combined according to design requirements, the flow shape is enhanced, and the application range is wide.

[0030] The top of the longitudinal frame 11 is symmetrically provided with steps a 115 on both sides; the top of the transverse frame 12 is symmetrically provided with steps b 122 on both sides; the height of the steps a 115 and the steps b 122 is equivalent to the thickness of the edge of the movable formwork; and in this way, the edge of the inverted and buckled movable formwork 13 can be flush with the top of the longitudinal frame 11 and the top of the transverse frame 12 to ensure the dense rib forming quality after the concrete solidifies.

[0031] The width of the steps a 115 and the steps b 122 is equivalent to the width of the edge of the movable formwork to obtain the contact area between the edge of the movable formwork and the transverse frame 12 and the longitudinal frame 11 and ensure the support stability.

[0032] The bottom center of the longitudinal frame 11 is provided with a protrusion a 116 arranged along the length direction of the longitudinal frame 11; the bottom center of the transverse frame 12 is provided with a protrusion b 123 arranged along the length direction of the transverse frame 12; the top of the support frame 2 is provided with a plurality of U-shaped pieces 21; the protrusion a 116 and the protrusion b 123 are inserted into the inner cavity of the U-shaped piece 21; the U-shaped piece 21 horizontally limits the protrusion a 116 and the protrusion b 123 to ensure the horizontal stability of the longitudinal frame 11 and the transverse frame 12 and further ensure the positional stability of the movable formwork 13.

[0033] The bottom of the U-shaped piece 21 vertically extends a threaded column 22 downward; the threaded column 22 is threadedly connected with the top of the support frame 2; a locking nut 23 is threadedly connected with the middle of the threaded column 22; the bottom of the locking nut 23 is connected with the top of the support frame 2; the threaded column 22 can be vertically lifted by rotating itself to finely adjust the height of the U-shaped piece 21 so that the inner end of the U-shaped piece 21 tightly abuts against the protrusion a 116 and the protrusion b 123; and the locking nut 23 locks the adjusted threaded column 22 to ensure the support stability of the U-shaped piece 21 to the mold unit 1.

[0034] The inner distance of the U-shaped piece 21 is greater than the width of the protrusion a 116 and the protrusion b 123 so that the vertically lifted U-shaped piece 21 can clamp the protrusion a 116 or the protrusion b 123.

[0035] The working process of the present embodiment includes the following steps:

[0036] ① According to the design drawing, lofting is carried out to obtain the scaffold control line and the movable formwork control line; the scaffold control line mainly marks the position of the steel pipe in contact with the ground; the movable formwork control line mainly marks the edge contour of the movable formwork; in general, the steel pipe positions are evenly distributed around the edge contour;

[0037] ② According to the scaffold control line, the scaffold is erected, so that the steel pipe in contact with the ground of the scaffold is just at the marked position of the scaffold control line;

[0038] ③ Splicing support unit

[0039] According to the design drawing, the longitudinal frame 11 is divided into several groups; the length of each group of spliced longitudinal frames 11 is equivalent to the longitudinal length on the design drawing; screws are screwed into the overlapping connection holes A 1111 and connection holes B 1121 on the adjacent longitudinal frames 11 for connection; according to the design drawing, the several groups of longitudinal frames 11 are arranged and connected using the horizontal frame 12; the splicing groove C 121 is buckled together with the splicing groove A 113 and the splicing groove B 114 on the adjacent column of longitudinal frames 11, and the connection hole E 1211 is respectively overlapped with the connection hole C 1131 and the connection hole D 1141; screws are screwed into the overlapping connection hole E 1211, connection hole C 1131 or connection hole E 1211, connection hole D 1141 to connect the horizontal frame 12;

[0040] ④ Install movable formwork 13

[0041] The movable formwork 13 is invertedly buckled in the basic frame structure 14 surrounded by the longitudinal frame 11 and the horizontal frame 12, and the edge of the movable formwork 13 is connected with the longitudinal frame 11 and the horizontal frame 12; rubber strips are adhered along the edge of the movable formwork 13 to make the movable formwork 13 and the longitudinal frame 11 and the horizontal frame 12 into an integral whole, which plays a role in preventing leakage of mortar;

[0042] ⑤ Steel reinforcement cage is bound above the movable formwork 13; concrete is poured on the bound steel reinforcement cage until the concrete reaches a certain depth above the movable formwork 13;

[0043] ⑥ After the concrete pouring is completed, the concrete is allowed to solidify;

[0044] When the solidifying concrete reaches 50% of the design strength, the steel pipe horizontally arranged in the scaffold can be removed for rapid turnover.

[0045] Example two: example two is basically the same as example one, and the same parts will not be repeated; the difference is that the commonly used fastener type scaffold has too small contact area with the ground, in order to increase the contact area of the support frame 2 with the ground, a plurality of base plates 24 are arranged at the bottom of the support frame 2 to increase the overall support stability of the support frame 2.

Claims

1. A formwork support system for early stripping of ribbed floor slabs, comprising a plurality of mold units arranged in an array and a support frame disposed on the mold units, characterized in that, Each mold unit includes a longitudinal frame, a transverse frame, and a movable mold shell; the lower half of the front end of the longitudinal frame has an insert block extending outward; the lower half of the rear end of the longitudinal frame has a slot corresponding to the insert block; the insert block of the adjacent longitudinal frame is inserted into the slot; the upper half of the front end of the longitudinal frame has symmetrical splicing groove A on both sides; the upper half of the rear end of the longitudinal frame has symmetrical splicing groove B on both sides; the slot and the corresponding position of the insert block have connection hole A and connection hole B respectively; connection hole A and connection hole B are matched; splicing groove A and splicing groove B have connection hole C and connection hole D respectively near the inner end; the bottom left and right ends of the transverse frame have symmetrical splicing groove C; splicing groove C is engaged with splicing groove A and splicing groove B spliced ​​together; the longitudinal frame and the transverse frame form a basic frame structure; splicing groove C has connection hole E corresponding to connection hole C and connection hole D; the movable mold shell is a basin structure, upside down in the middle of the basic frame structure, with its edge connected to the top of the longitudinal frame and the transverse frame; the top of the support frame is connected to the bottom of the longitudinal frame or the bottom of the transverse frame. The bottom center of the vertical frame has a protrusion A that runs along the length of the vertical frame; the bottom center of the horizontal frame has a protrusion B that runs along the length of the horizontal frame; the top of the support frame has several U-shaped parts; protrusions A and B are inserted into the inner cavity of the U-shaped parts; The bottom of the U-shaped part has a threaded post extending vertically downwards; the threaded post is threadedly engaged with the top of the support frame; a locking nut is threadedly engaged in the middle of the threaded post; the bottom of the locking nut is connected to the top of the support frame.

2. The early stripping formwork support system for ribbed floor slabs according to claim 1, characterized in that: The top two sides of the vertical frame are symmetrically provided with step A; the top two sides of the horizontal frame are symmetrically provided with step B; the height of step A and step B is equivalent to the thickness of the edge of the movable shell.

3. The early stripping formwork support system for ribbed floor slabs according to claim 2, characterized in that: The widths of steps A and B are approximately equal to the widths of the edges of the movable shell.

4. The early stripping formwork support system for ribbed floor slabs according to claim 1, characterized in that: Several pads are provided at the bottom of the support frame.

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