CN110499858A - Non-demolition-free non-metallic base plate fixed-form laminated plate, corresponding floor structure and floor construction method - Google Patents

Abstract

The invention relates to a non-metal base plate solid-form laminated board, a corresponding floor structure and a floor construction method. The fixed-form laminated plate includes a base plate, a steel mesh and a plurality of steel bar trusses located above the base plate, and the base plate A non-metal plate is used, and a space is left between the bottom plate of the steel bar truss and the upper surface of the bottom plate. On the floor, the non-demolition-free non-metal base plate and fixed-form laminated plate are used as the permanent formwork of the bottom formwork, and the upper part of the permanent formwork is a cast-in-place concrete layer. The construction method adopts the non-demolition-free non-metallic bottom plate fixed-form laminated plate as a permanent formwork, sets a support system and installs the non-demolition-free non-metallic bottom plate fixed-form laminated plate in place to form a floor bottom formwork, and on the bottom formwork The cast-in-place concrete layer is poured, and the non-demolition-free non-metallic bottom plate and fixed-form laminated plate are not removed after consolidation. The solid mold laminated board of the present invention has the advantages of simple preparation process, short production period, low cost, convenient on-site construction, and the formed floor has a texture and texture that conforms to people's habits, and is convenient for decoration.

Description

Non-demolition-free non-metallic base plate fixed-form laminated plate, corresponding floor structure and floor construction method

technical field

The invention relates to a non-demolition-free non-metal base plate solid-form laminated board, a floor using the solid-form laminated board and a construction method for the floor, belonging to the field of construction.

Background technique

The formwork support and dismantling of cast-in-place slabs are very complicated, time-consuming and labor-intensive, which not only seriously restricts production efficiency, leads to an increase in construction costs, but also increases labor intensity and deteriorates the working environment.

In order to simplify the process, people try to use permanent formwork (or fixed formwork), which is consolidated with the concrete poured on site (cast-in-place concrete layer) to form part of the floor structure, thus at least eliminating the need for formwork removal. Among them, the more successful technologies include profiled steel plates and reinforced truss-concrete laminated slabs. Since the material characteristics of the profiled steel plate are not suitable for people's living habits and decoration requirements, and there are many defects such as easy corrosion and inconvenient construction, it is rarely suitable for occasions, and it is often only used in some industrial plants with low requirements.

Reinforced truss concrete composite slab is to divide the concrete layer of the floor into two pourings. First, the steel truss and the lower layer of steel are used as the skeleton, and the lower concrete layer is poured in the factory to form a precast concrete slab. The upper part of the steel truss is formed from the precast concrete slab. The upper surface is exposed and hoisted through the exposed upper chord steel bars. After being installed on site, it is used as a bottom formwork for the second concrete pouring. The cast-in-place upper concrete layer and the prefabricated lower concrete layer are consolidated into one body to form a laminated floor slab . In addition, for the convenience of the process, a layer of metal plate can be directly welded on the bottom of the steel truss, and the metal plate can be used as the bottom form for pouring the precast concrete layer, so that the bottom of the precast concrete slab has a layer of metal plate, After the on-site pouring is completed, this layer of metal plate is removed, and the exposed truss reinforcement due to the removal of the steel plate is sealed with colloidal materials such as cement mixed with glue.

The existing reinforced truss concrete composite slab effectively reduces the complexity of on-site formwork support, and does not need to remove the formwork. There are certain defects: First, the prefabrication of the lower concrete layer in the factory not only greatly prolongs the production cycle, but also requires a series of special equipment and facilities such as concrete mixing, pouring and maintenance in addition to conventional mechanical processing equipment, which greatly increases In addition to occupying a large area, the requirements for the load-bearing capacity of the factory building have been greatly increased, and the working environment has been seriously deteriorated, which in turn makes the cost of this prefabricated concrete much higher than that of poured concrete on site, and significantly increases the cost of transportation and storage. associated costs; and the second is that connecting reinforcement (typically extending longitudinal and/or transverse reinforcement in a precast concrete layer from the ends or sides) is often erected on site by supports (usually reinforced beams or The obstruction of the steel bars on the wall), because the connecting steel bars are consolidated on the prefabricated concrete layer, the exposed part is short and not easy to bend, it is very difficult to bypass the blocking of the supporting steel bars, and the connecting steel bars often have to be cut off in practice. This will seriously affect the connection strength; third, especially for two-way slabs, the cast-in-place slab belt formed by the gap between prefabricated concrete slabs is relatively wide, which will still cause a large amount of formwork removal; The bonding strength between layers of concrete is significantly lower than the concrete strength of one job, which affects the quality of the floor slab and is prone to cracks. In addition, when a metal plate is placed on the bottom of the precast concrete slab, although it is convenient or simplifies the related process, the workload of removing the metal plate is very large, and the removed metal plate usually has a lot of damage, which affects its reuse and causes certain damage. Waste, although the exposed truss reinforcement after removing the metal plate cannot be seen from the outside after sealing, the sealing material cannot form an effective protective layer thickness, and the bonding strength between the sealing material and the surrounding materials is also low, and the surface layer is prone to peeling and corrosion of steel bars.

Contents of the invention

In order to solve the above-mentioned technical problems, the present invention provides a non-demolition-free non-metal base plate solid-form laminated slab, a floor using such a solid-form laminated slab and a construction method for such a floor. The plywood is suitable for use as a permanent formwork for the floor. Its preparation process is simple, the production cycle is short, the cost is low, and the on-site construction is convenient, which is conducive to ensuring the quality of the floor. .

Technical scheme of the present invention is:

A non-demolition-free non-metal base plate fixed-form laminated plate, including a base plate, a steel mesh and a steel bar truss located above the base plate, the base plate is made of non-metallic plates, and there is a gap between the base plate of the steel bar truss and the upper surface of the base plate. There is spacing.

Connectors may be provided for securing the respective steel trusses and said base plate together.

The connecting piece can be inverted V-shaped, U-shaped or C-shaped, and the inverted V-shaped connecting piece is buckled on the corresponding steel truss, and the two legs at the bottom are respectively fastened to the truss by self-tapping screws or other suitable methods. on the bottom plate; the U-shaped connector is provided with mutually symmetrical left and right clamping plates, and is provided with an integrated base or an independent base used as a cushion block. When an independent base is provided, the left and right clamping plates The bottom plate of the clamp is fixedly connected, and the base plate of the clamp is arranged on the independent base, and the left and right clamps are respectively clamped on the outside of the lower chord bar of the corresponding side of the steel bar truss; the C-shaped connector includes mutually symmetrical The left connecting piece and the right connecting piece, the left connecting piece and the right connecting piece are respectively provided with one-sided clamping plates on their corresponding sides and a single-sided clamping plate base used as a spacer, and the single-sided clamping plate base is preferably connected with The one-side clamping plate is integrated, the left and right connectors are respectively provided on the corresponding sides of the steel bar truss, and the one-side clamping plates are respectively clamped on the outer sides of the corresponding lower chord bars of the steel bar truss.

A floor, including a permanent formwork used as a bottom form, the upper part of the permanent formwork is a cast-in-situ concrete layer, and the permanent formwork adopts any non-metal base plate fixed-form composite plate disclosed by the present invention, and the The reinforcement trusses in the non-demolition-free non-metallic bottom plate solid-form laminated slab are consolidated in the cast-in-situ concrete layer, the longitudinal steel bars in the non-demolition-free non-metallic bottom plate solid-form laminated slab constitute the longitudinal reinforcement of the lower layer, and the non-demolition-free non-metallic bottom plate The end connection reinforcement in the fixed-form laminated slab of the base plate constitutes the end connection reinforcement of the lower layer.

A construction method for a floor, wherein the floor is any one of the floors disclosed in the present invention that uses the non-demolition-free non-metallic bottom plate as a permanent template, and is configured to support the non-demolition-free non-metallic bottom plate For the support system of the solid-form laminated board, the non-demolition-free non-metallic bottom plate solid-form laminated board is installed in place, and according to the width of the floor and the width of the non-demolition-free non-metallic bottom plate solid-form laminated board, it is formed by splicing or non-splicing. When pouring the bottom form of the cast-in-place concrete layer, the cast-in-place concrete layer is poured on the bottom form, and the non-demolition-free non-metallic bottom plate and solid-form laminated plate are not removed after consolidation to form the floor.

The beneficial effects of the present invention are: since the fixed-form laminated slab prepared by the factory does not have a precast concrete layer, the processing equipment and processing technology are simple, the impact on the working environment is small, the operation is convenient, the labor intensity is reduced, the working environment is improved, and no The equipment and facilities related to concrete are set up, occupying a small area, which greatly reduces the investment in production equipment and facilities; because there is no need to spend concrete curing time in the preparation process of solid mold laminated panels, the production cycle is obviously shortened and production efficiency is improved; The solid-form laminated board is light in weight and has low requirements on the load-bearing capacity of the factory building. It is allowed to set up the factory building as multiple layers, which further reduces the land occupation requirements for the processing of the solid-form laminated board, and also reduces the burden in a series of links such as storage, transportation and hoisting. load; since there is no metal plate at the bottom of the solid-form laminated slab, the removal process of the metal plate is omitted, and an effective protective layer thickness can be formed between the steel truss and the non-metallic bottom plate by any suitable method such as a spacer to avoid It reduces the workload and material waste of metal plate removal, and helps to ensure the protective effect of steel bars, avoiding the corrosion of steel bars caused by the installation of bottom metal plates; because it can rely on steel truss plates for reinforcement and is not consolidated in precast concrete, The connecting steel bar has a wide movable range and is easy to bend. When the on-site installation process is hindered by the supporting steel bar, the supporting steel bar can be bypassed by hand breaking and installed in place, which greatly facilitates the operation and avoids The connection reinforcement had to be cut off because it was impossible to bypass the support reinforcement; since the bottom can use various building panels suitable for interior walls, and the connection reinforcement is not blocked by the prefabricated concrete layer and can extend to the adjacent fixed-form laminated slab Above the bottom plate, it is anchored to the corresponding steel bars on the corresponding fixed-form laminated plate, and adjustment joints or no adjustment joints can be left between the base plates of adjacent fixed-form laminated plates as required (in practice, the adjustment joint can usually be controlled within 10mm ), using adhesive tape to bond the joints from the bottom surface of the bottom slab, the gap between the slabs can be blocked without affecting the pouring of the cast-in-place concrete layer, thus avoiding operations such as branching and demolition of the cast-in-place slab caused by too wide a cast-in-place slab Quantity and material loss; because the bottom plate is made of non-metallic plates, there are a large number of wooden, inorganic, mixed materials and other forms of non-metallic plates for construction in the prior art, which have suitable thickness and are easy to machine. These plates are not only low in cost, It is environmentally friendly, and its strength is significantly higher than that of common profiled steel plates. It is convenient for operation and helps to ensure the quality of floor slab pouring. adaptability.

Description of drawings

Figure 1 is a schematic diagram of a two-way board (side board) (connectors are not shown, the same below);

Fig. 2 is a schematic diagram of A-A corresponding to Fig. 1;

Fig. 3 is a B-B schematic diagram corresponding to Fig. 1;

Fig. 4 is a partial enlarged view of C corresponding to Fig. 3;

Figure 5 is a schematic diagram of a two-way board (middle board);

Fig. 6 is a D-D schematic diagram corresponding to Fig. 5;

Fig. 7 is the schematic diagram of one-way plate;

Fig. 8 is the E-E schematic diagram corresponding to Fig. 7;

Fig. 9 is a schematic diagram involving two-way plate splicing seams;

Fig. 10 is a schematic diagram involving a one-way board splicing seam;

Fig. 11 is a schematic diagram related to the end support of the fixed mold laminated plate;

Figure 12 is a schematic diagram involving the one-way plate side support;

Figure 13 is a schematic diagram involving a two-way plate side support;

Fig. 14 is a schematic diagram related to a connector;

Fig. 15 is a schematic diagram of the connection method of the connector shown in Fig. 14;

Fig. 16 is a schematic diagram related to another connector;

Fig. 17 is a schematic diagram of the connection method of the connector shown in Fig. 16;

Fig. 18 is a comparative schematic diagram of two symmetrical C-shaped connectors (positive C-shaped and reverse C-shaped).

Detailed ways

The present invention will be further described below in conjunction with the accompanying drawings.

As shown in Fig. 1-18, the non-metal base plate solid-form laminated plate (referred to as the solid-form laminated plate) provided by the present invention includes a base plate 50, a steel bar truss 30 and a steel mesh located above the bottom plate, and the steel mesh can be It is arranged between the steel bar truss and the spacer to facilitate processing, the bottom plate is made of non-metal plate, and there is a gap between the bottom plate of the steel bar truss and the upper surface of the bottom plate.

This kind of fixed-form laminated slab does not have a precast concrete layer, especially for the strength of the bottom plate, but it can be sprayed with an interface layer, an oxygen barrier fireproof layer or an anti-corrosion layer according to actual needs.

The steel bar truss can adopt any suitable existing technology, and usually can be provided with upper chord bars 32, lower chord bars 31 and abdominal bars 33 fixedly connected between the upper chord bars and the lower chord bars. A common embodiment is the upper chord bars and the lower chord bars The ribs are distributed in a font shape, and the abdominal ribs are respectively arranged on both sides. The abdominal ribs are wavy or zigzag. The upper end is welded to the upper string rib, and the lower end is welded to the lower string rib on the corresponding side.

The steel bar trusses should generally be arranged longitudinally to adapt to the stress situation.

The number of the steel mesh can be set to any number according to actual needs, usually one, and the number of the steel trusses can be set to any number according to actual needs, usually multiple, for example, two, three or four.

Reinforcement trusses can be set according to the specific conditions such as the width and force of the fixed-form laminated slab. When multiple reinforcement trusses are provided, the reinforcement trusses are parallel to each other and located at the same height relative to the bottom plate. Usually, the distance between adjacent reinforcement trusses The distance between them is equal.

If necessary, longitudinal steel bar trusses and transverse steel bar trusses can also be arranged at the same time. The longitudinal steel bar trusses and transverse steel bar trusses are located at the same height relative to the bottom plate and intersect each other in a grid pattern to allow a larger width or adapt to Special stress occasions.

Any suitable method can be used to form and maintain the distance between the steel bar truss and the bottom plate. As for the pads 20 that support the corresponding spacing, there are multiple pads set under the same steel truss, and the pads are fixedly connected to the bottom plate. This way of forming and maintaining the spacing is simple in structure, good in reliability, and Contributes to the stability of steel trusses.

The spacer can be made of any suitable material. For example, a preferred embodiment is to use a concrete spacer so as to be integrated with the cast-in-place concrete; another preferred embodiment is to use a wooden spacer. When wooden spacers or other suitable materials are used, the spacers are preferably fastened to the bottom plate by self-tapping screws 21, thereby facilitating the installation and fixing of the spacers on the bottom plate, and facilitating mechanized or automatic processing.

The bottom plate can adopt any suitable form of non-metallic plate, such as various non-metallic building plates suitable for use as walls, to meet people's requirements for ceiling texture, and to be suitable for mechanical processing, which is conducive to the realization of mechanization and automated processing.

For example, a preferred embodiment is to use wood flour or other biomass fine granular/powder materials as the main raw material or one of the main raw materials, mix it with adhesive inorganic materials, and cure it by natural curing or heating curing to form Corresponding non-metallic plates. Such non-metallic plates usually have suitable strength, no deformation, and are suitable for mechanical processing such as cutting and punching, and such plates used for construction in the prior art generally have good flame retardancy. For the convenience of expression, the base plates or pads prepared by using the above prevention are collectively referred to as wooden boards or wooden pads.

The reinforcement mesh includes several longitudinal reinforcement bars 40 and several transverse reinforcement bars 10, which can be a whole piece of reinforcement mesh, or can be connected into a reinforcement mesh by multiple pieces of reinforcement mesh.

The longitudinal reinforcement and the transverse reinforcement in the reinforcement mesh can be welded or anchored to each other at the intersection, or any other suitable method can be used to form the reinforcement mesh.

The transverse reinforcement can be used as a distribution reinforcement or as a stress reinforcement to meet the corresponding requirements of one-way slabs and two-way slabs.

The transverse reinforcement in the reinforcement mesh is preferably located below the longitudinal reinforcement, and the reinforcement truss is supported on the reinforcement mesh, so that the lower chord of the reinforcement truss and the longitudinal reinforcement are located on the same plane and parallel to each other. After the longitudinal reinforcement and the transverse reinforcement are pre-fixed and connected into a reinforcement mesh, it is beneficial to improve the integrity, prevent the reinforcement from moving or detaching, especially facilitate automatic processing, reduce the movement of processing machinery, and improve production efficiency.

The lower chord bars (truss bars located at the bottom of the truss and extending longitudinally) in the steel bar truss are in contact with the transverse bars and not in contact with the longitudinal bars.

When spacers are provided between the steel bar truss and the bottom plate to support the corresponding spacing, the upper surface of the spacer is preferably provided with a groove capable of placing and fixing the transverse reinforcement, and any suitable groove can be used for this groove. The shape can be semicircular, V-shaped or U-shaped, etc. At least one transverse steel bar is pressed on the top of the spacer, and the transverse steel bar pressed on the top of the spacer is embedded in the groove on the upper surface of the spacer.

At both ends of the fixed-form laminated plate in the longitudinal direction, at least part (usually all) of the longitudinal steel bars extend from the corresponding ends of the bottom plate to form corresponding end-connecting steel bars.

On any side of the fixed-form laminated slab in the transverse direction, at least part (usually all) of the transverse steel bars may extend from the corresponding side of the bottom plate to form corresponding side connecting steel bars, or all the transverse steel bars may be None of them extend from the side of the bottom plate, thereby forming a two-way plate (as shown in FIG. 1 and FIG. 5 ) or a one-way plate (as shown in FIG. 7 ) with different stress modes.

The length and shape of the side connecting steel bars on both sides of the same solid-form laminated slab can be the same or different.

For the middle slab in a two-way slab (see Figures 5 and 6), both sides are adjacent to other two-way slabs when used, so the length and shape of the side connecting bars on both sides can usually be the same, and the side connecting bars are preferred The hook 11 provided on the outer end of the hook 11 is bent obliquely upward and backward, and the angle between the hook and the unbent part can be about 45°, for example, 30°-60°.

For two-way side slabs (see Figures 1 and 2), where one side adjoins the other two-way slab, the side connecting bars on that side are usually of the same or similar length and shape If the side support is adjacent, the side connecting reinforcement on this side usually does not need to be hooked.

End connection bars and/or side connection bars can be set as independent connection bars independent of longitudinal or transverse bars, or at the base of end and/or side connection bars formed by longitudinal or transverse bars, depending on actual needs A corresponding independent connecting reinforcement is added on the upper part, and a part of the independent connecting reinforcement is located above the bottom plate of the corresponding solid-form laminated slab, and another part is located above the bottom plate of the corresponding solid-form laminated slab of the solid-form laminated slab or in the corresponding support. The independent connecting reinforcement can be installed on site together with other reinforcement installed on site (such as the longitudinal reinforcement of the upper layer and the transverse reinforcement of the upper layer, if any) and finally consolidated in the cast-in-situ concrete layer.

The solid-form laminated plate can be provided with connectors 90 for fixing the corresponding steel bar trusses and the bottom plate together, and the various parts of the solid-form laminated plate are fixed as a whole through the connectors, so as to facilitate transportation and on-site hoisting.

The shape and distribution mode of the connecting parts can adopt any suitable prior art.

A preferred implementation mode is (see Figures 14 and 15): the connecting piece is in an inverted V shape, buckled on the corresponding steel truss, and the two legs at the bottom are respectively fastened to the the bottom plate. The specific structure of this connecting piece can be: it is in an inverted V shape or an inverted U shape, with side plates 94 on both sides, and a leg 92 is provided at the bottom of the side plate, and the leg is preferably in the shape of a flat plate extending outward. , and can be provided with a through hole 93 that can pass through the screw. When in use, this connector is buckled on the corresponding steel bar truss, and the two legs at the bottom are respectively fastened to the said truss by self-tapping screws 91 or other suitable methods. On the bottom plate, the steel bar truss, the steel bar or steel mesh between the steel bar truss and the bottom, and the spacer between the steel bar truss and the bottom plate can be fastened together with the bottom plate. The load-bearing capacity is relatively large. After setting a sufficient number according to the load-bearing requirements, it is allowed to be lifted directly through the upper chord bars, and is suitable for automatic processing of solid-form laminated panels.

Another preferred embodiment is (see Figures 16 and 17): the connecting piece is U-shaped and snap-fit, and is provided with two opposite clamping plates 96, the two clamping plates are inclined to each other, and the distance between the upper part Small, large spacing between the lower parts, and the top end is provided with inward hooks 98, the lower chord bars on both sides of the steel bar truss are respectively stuck in the clamping plates on the corresponding sides. The concrete structure of this connector can be: described two clips are elastic clips, fixedly connected on the bottom plate 95 of the clips, the upper part of the two clips in the free state has a small distance, the lower part has a large distance, and the hooks at the top point inward Extend, the clamp bottom plate is fixedly installed on the corresponding pad, the clamp bottom plate is fixedly installed on the corresponding pad, or the two clamps can be directly fixed on the pad, the clamp The bottom plate is provided with a through hole 97 for installing screws, and an enlarged diameter section for accommodating the screw head can be arranged on the top of the through hole, and the lower chord bars 32 on both sides of the steel bar truss are respectively clamped in the clamping plates on the corresponding sides. Enter the groove-shaped area 99 below the crooked hook at the top of the corresponding clamping plate, install the connecting piece on the corresponding pad by screw fastening, bonding, etc., to form a connecting assembly with a pad, and pass this connecting assembly through Self-tapping screws are fastened to the bottom plate, and the lower chord bars on both sides of the steel truss are aligned with the two clamps and lowered, relying on the gravity of the steel truss itself, the tops of the two clamps can be stretched and fall between the two clamps. The lower chord bar enters the groove-shaped area formed by the clamping plate and its top hook. The clamping plate relies on its own elastic force to clamp the steel bar truss from both sides of the lower chord bar on both sides. It needs to be set so that the lower part of the steel truss can enter between the two clamping plates and be clamped. In addition, it is preferable to arrange the pallet on the pallet base that can be used as a spacer, and adopt an integrated structure such as integral molding of the pallet and the base (as shown in Figure 16), and have the functions of steel truss fixing and spacer at the same time. For the convenience of use, this kind of connecting piece, which has the functions of steel truss fixing and spacer, can be fastened on the bottom plate with self-tapping screws like a spacer, and the upper surface of the clamp base can be provided with a long Slot 97, so as to facilitate the screwing of self-tapping screws and optimize the elasticity of the clamping plate.

Another preferred embodiment is that the connecting piece is C-shaped, which is divided into two types that are symmetrical to each other (see Figure 18), which is equivalent to cutting the above-mentioned U-shaped connecting piece from the middle, and dividing it into two parts respectively. The positive C-shaped and reverse C-shaped connectors that only include one-sided clamping plates on the corresponding side, these two C-shaped connectors are located on both sides of the steel truss, and are preferably distributed at equal intervals in the longitudinal direction to facilitate the reinforcement of the steel truss. Install.

The above-mentioned U-shaped and C-shaped connectors can usually be provided with a base used as a pad. Compared with the integrated molding of the clips of these connectors and the corresponding pads, an integrated structure with both the function of a pad and the function of a connector is formed. The connecting parts can be metal parts, plastic parts or other materials.

The floor provided by the present invention includes a permanent formwork used as a bottom form, and the top of the permanent formwork is a cast-in-place concrete layer 70, and the permanent formwork adopts any non-metal base plate solid-form composite plate disclosed by the present invention, The reinforcement trusses in the non-demolition-free non-metallic bottom plate fixed-form laminated slab are consolidated in the cast-in-situ concrete layer, the longitudinal steel bars in the non-demolition-free non-metallic bottom plate fixed-form laminated slab constitute the longitudinal reinforcement of the lower layer, and the demolition-free The end connection reinforcement in the fixed-form composite slab of the non-metal base constitutes the lower end connection reinforcement. When the non-demolition-free non-metallic bottom plate solid-form laminated slab is provided with transverse steel bars, the transverse steel bars in the non-demolition-free non-metallic bottom plate solid-form laminated slab constitute the lower horizontal steel bar. When the non-demolition-free non-metallic bottom plate solid-form laminated plate is provided with side connecting steel bars, the side connecting steel bars in the non-demolition-free non-metallic bottom plate solid-form laminated plate constitute the lower side connecting steel bar. According to actual needs, the upper longitudinal steel bar 72 and/or the upper horizontal steel bar 71 can be reinforced on site before pouring concrete, and the method of on site reinforcement can be based on the existing technology.

The floor should be provided with end supports and side supports for connection and support of corresponding parts.

The end support includes an end support body 81 (usually a beam and/or wall at the corresponding position), and the end support body is provided with an end cast-in-place connection space corresponding to the end surface of the floor. The upper end connecting steel bar and the lower end connecting steel bar of the non-demolition-free non-metallic bottom plate solid-form laminated slab extend to the end cast-in-place connection space, and the bottom plate of the non-demolition-free non-metallic bottom plate solid-form laminated slab does not extend to the end cast-in-place In the connection space, an adjustment seam may be left between the elevation of the end support body (refer to FIG. 11 ).

The upper layer end connecting reinforcement can be configured on site, usually it can be a part of the upper layer longitudinal reinforcement configured on site, or it can be set separately or add an independent upper layer end connecting reinforcement on the basis of the upper layer end connecting reinforcement formed by the upper layer longitudinal reinforcement .

The longitudinal span of the upper-layer end-connecting reinforcement in the end-cast-in-place connection space is preferably greater than half of the span of the end-cast-in-place connection space in the corresponding direction, and the front end of the upper-layer end-connection reinforcement is bent downward into a vertical section 73. The vertical span of the vertical section of the upper end-connecting reinforcement in the end-cast-in-place connection space is preferably greater than half of the span of the end-cast-in-place connection space in the corresponding direction, and the cast-in-place concrete layer extends to The remaining space in the end-cast-in-place connection space is filled and consolidated with the end support body, and the upper-layer end-connection steel bars and the lower-layer end-connection steel bars are consolidated in the cast-in-place concrete layer.

The side supports include side supports 82 and 83 (usually beams and/or walls at corresponding positions), and the side supports are provided with side cast-in-place connection spaces corresponding to the sides of the floor, The upper side connecting steel bar and the lower side connecting steel bar of the non-demolition-free non-metallic bottom plate solid-form laminated plate extend to the side cast-in-place connection space, and the bottom plate of the non-demolition-free non-metallic bottom plate solid-form laminated plate does not extend to the side In the cast-in-place connection space, an adjustment joint may be left between the elevation of the side support body (see Figures 12 and 13).

The upper-layer side connecting reinforcement can be configured on site, usually it can be a part of the upper-layer lateral reinforcement configured on-site, or it can be set separately or on the basis of the upper-layer side connecting reinforcement formed by the upper-layer lateral reinforcement. Add an independent upper-layer side connecting reinforcement .

The lateral span of the upper layer side connecting reinforcement in the side cast-in-place connection space is preferably greater than half of the span of the side cast-in-place connection space in the corresponding direction, and the front side of the upper layer side connection reinforcement is bent downward into a vertical Section 74, the vertical span of the vertical section of the upper side connecting reinforcement in the side cast-in-place connection space is preferably greater than half of the span of the side cast-in-place connection space in the corresponding direction, and the cast-in-place concrete layer extends To and fill the remaining space in the side cast-in-place connection space, and consolidate with the side support body, the upper layer side connection reinforcement and the lower layer side connection reinforcement are consolidated in the cast-in-place concrete layer .

When a one-way slab is used, its transverse reinforcement does not extend from the side so as to be used as a side connecting reinforcement. Therefore, the lower independent side connecting reinforcement 75 should usually be set on site, and the lower layer matching with the lower independent side connecting reinforcement should be set or not provided. Independent longitudinal reinforcement for connection, one end of the independent side connection reinforcement of the lower layer is located above the bottom plate of the corresponding one-way slab, and the other end is located in the side cast-in-place connection space, and the independent longitudinal reinforcement for lower layer connection is located at the bottom of the one-way slab the corresponding border area.

When the non-demolition-free non-metal base plate solid-form laminated plate is a two-way plate, a small adjustment seam 60 may be left between the base plates of two adjacent non-demolition-free non-metallic base plate solid-form laminated plates 1 and 2, for example, not greater than 10mm, The transverse connecting steel bars on the adjacent sides are respectively extended to the bottom plate of the adjacent non-demolition-free non-metallic bottom plate solid-form laminated plate, thereby forming a mutual anchorage area for the transverse connecting steel bars of two adjacent non-demolition-free non-metallic bottom plate solid-form laminated plates (See FIG. 9 ), according to needs, longitudinal reinforcing bars 62 may or may not be provided in the anchorage area.

When the non-demolition-free non-metal base plate solid-form laminated plate is a one-way plate, a small adjustment seam can be left between the base plates of two adjacent non-demolition-free non-metallic base plate solid-form laminated plates 3, 4, for example, not more than 10mm, Above the joint area of the two bottom plates, an additional transverse connecting reinforcement 61 may be provided, with or without an additional longitudinal reinforcement 62. The number of the additional transverse connecting reinforcement may usually be multiple, parallel to each other and preferably located on the same plane Above, the additional transverse connecting reinforcement straddles the joint between two adjacent bottom plates, and the two ends are respectively located above the two adjacent bottom plates (see Figure 10).

When additional longitudinal reinforcing bars are provided, the number of the additional longitudinal reinforcing bars is multiple, which are respectively located above the bottom plate of the corresponding non-metal base plate solid-form laminated plate, and the additional transverse connecting bars are located vertically Between the lower layer of reinforcement and the upper layer of reinforcement, the additional longitudinal reinforcement is located above or below the additional transverse connection reinforcement, and is in contact with or adjacent to each other at the three-dimensional intersection between them (adjacent but not in direct contact, for example, two There are small adjustment seams and/or gaps caused by processing and assembly precision, etc.).

The floor construction method provided by the present invention is to set a support system for supporting the non-demolition-free non-metallic bottom plate solid-form laminated board, install the non-demolition-free non-metallic bottom plate solid-form laminated board in place, according to the floor width and the described The width of the non-demolition-free non-metal base plate fixed form laminated plate is spliced or not spliced to form a base form for pouring the cast-in-place concrete layer, and the cast-in-place concrete layer is poured on the base form, and consolidated Afterwards, the non-demolition-free non-metallic bottom plate solid-form laminated board is not removed to form the floor, and the non-demolition-free non-metallic bottom plate solid-form laminated board forms a part of the floor structure, and the floor is disclosed by the present invention. Any kind of floor using the non-demolition-free non-metal base plate fixed-form laminated plate as a permanent formwork.

The support system can adopt any suitable prior art. For example, the support system is provided with a pole and a main flute on the top of the pole, and the main flute is directly or indirectly supported on the bottom of the non-demolition-free non-metallic bottom plate solid-form laminated board directly or indirectly through supports such as secondary flutes.

When there are multiple non-demolition-free non-metallic base plate fixed-form laminated panels, there are adjustment joints or no adjustment joints between the bottom plates of adjacent non-demolition-free non-metallic base plate solid-form laminated plates. Remove the bottom of the non-metallic base plate solid-form laminate to seal the seam.

When there is a large adjustment gap due to the incomplete adaptation between the actual width of the floor and the standard width of the non-metallic base plate fixed form laminated plate, an independent base form can be set under the gap, and the setting method of the independent base form can be based on current technology.

The cost of the demolition-free non-metal base plate fixed form laminated slab of the present invention is obviously lower than the cost of the existing reinforced truss concrete laminated slab, and the floor cost of the present invention is obviously lower than that of the existing floor cost using the reinforced truss concrete laminated slab as the permanent formwork .

The present invention is applicable to various floors of various buildings and structures (including interstory floors, roofs and other planar structures adapted to the present invention).

The preferred and optional technical means disclosed in the present invention can be combined arbitrarily to form several different technical solutions, unless otherwise specified and one preferred or optional technical means is further limited by another technical means.

Claims (10)

1. a kind of non-metallic base plate fixed form laminated plate that is exempt from dismantling, is characterized in that comprising base plate and the reinforcement mesh and the steel bar truss that are positioned at described base plate top, described base plate adopts non-metal plate, the base plate of described reinforced truss and described base plate A space is left between the upper surfaces. 2. The solid-form laminated slab according to claim 1, wherein spacers for supporting corresponding spacing are arranged between the steel bar truss and the bottom plate, and the number of spacers set under the same steel bar truss is multiple , the spacer is fixedly connected to the bottom plate, and when a wooden spacer is used, the spacer is preferably fastened to the bottom plate by self-tapping screws. 3. The solid-form laminated slab as claimed in claim 1, wherein the number of the steel mesh is 1, and the number of the steel trusses is multiple, and the steel mesh includes some longitudinal reinforcements and some transverse reinforcements, The transverse reinforcement in the reinforcement mesh is preferably located below the longitudinal reinforcement, the reinforcement truss is supported on the reinforcement mesh, and the lower chord bars in the reinforcement truss are in contact with the transverse reinforcement and not with the longitudinal reinforcement In contact with each other, when there is a spacer between the steel bar truss and the bottom plate to support the corresponding spacing, the upper surface of the spacer is preferably provided with a groove capable of placing and fixing the transverse reinforcement, at least one transverse reinforcement Pressed on the pad, the transverse steel bar pressed on the pad is embedded in the groove on the upper surface of the pad. 4. The solid-form laminated panel as claimed in claim 3, wherein at both ends in the longitudinal direction, at least part of the longitudinal reinforcement extends from the corresponding end of the bottom plate to form a corresponding end connecting reinforcement, and in the transverse direction On any side of the top, when the transverse reinforcement is provided, at least part of the transverse reinforcement extends from the corresponding side of the bottom plate to form a corresponding side connection reinforcement, or all the transverse reinforcement does not extend from the side of the bottom plate side extended. 5. The solid-form composite panel according to claim 1, 2, 3 or 4, characterized in that there are connecting pieces for fixing the corresponding steel bar trusses and the bottom plate together, and the connecting pieces are preferably inverted V-shaped , U-shaped or C-shaped, the inverted V-shaped connector is buckled on the corresponding steel truss, and the two legs at the bottom are respectively fastened to the base plate by self-tapping screws or other suitable methods; the U-shaped connector The parts are provided with mutually symmetrical left and right pallets, and are provided with an integrated base or an independent base used as a spacer. When an independent base is provided, the left and right pallets are fixedly connected to the pallet bottom plate, The bottom plate of the clamping plate is arranged on the independent base, and the left and right clamping plates are respectively clamped on the outside of the lower chord bars on the corresponding sides of the steel bar truss; the C-shaped connectors include mutually symmetrical left connectors and right connectors, The left connecting piece and the right connecting piece are respectively provided with one-sided clamping plates on their corresponding sides and a single-sided clamping plate base used as a spacer, and the single-side clamping plate base is preferably integrated with the single-side clamping plate , the left and right connectors are respectively arranged on the corresponding sides of the steel bar truss, and the clamping plates on one side thereof are respectively locked on the outer sides of the corresponding lower chord bars of the steel bar truss. 6. A floor, comprising a permanent formwork used as a base form, above the permanent formwork is a cast-in-place concrete layer, characterized in that the permanent formwork adopts the non-demolition-free non-metallic formwork described in any one of claims 1-5. The base plate fixed-form laminated slab, the steel bar trusses in the non-demolition-free non-metallic base plate fixed-form laminated slab are consolidated in the cast-in-situ concrete layer, and the longitudinal steel bars in the non-demolition-free non-metallic base plate fixed-form laminated slab constitute the longitudinal direction of the lower layer Reinforcing bars, the end-connecting steel bars in the non-demolition-free non-metallic bottom plate solid-form laminated slab constitute the lower-layer end-connecting steel bar. The transverse steel bar in the solid-form laminated slab constitutes the transverse steel bar of the lower layer. When the side connecting steel bar is provided in the non-metallic base plate solid-form laminated plate, the side connecting steel bar in the non-demolition-free non-metallic base plate solid-form laminated plate constitutes Connecting reinforcement on the lower side. 7. The floor as claimed in claim 6, characterized in that an end support and a side support are provided, the end support comprises an end support body, and the end support body is provided with an end surface connected to the floor. The corresponding end-cast-in-place connection space, the upper-layer end-connecting steel bar and the lower-layer end-connecting steel bar of the non-demolition-free non-metallic bottom plate solid-form laminated plate extend to the end-cast-in-place connection space, and the non-demolition-free non-metallic bottom plate solid-form laminated plate The bottom plate does not extend into the end cast-in-place connection space, and the longitudinal span of the upper end connection reinforcement in the end cast-in-place connection space is preferably greater than half of the span of the end cast-in-place connection space in the corresponding direction, The front end of the upper end connecting steel bar is bent downward into a vertical section, and the vertical span of the vertical section of the upper end connecting steel bar in the end cast-in-place connection space is preferably larger than that of the end cast-in-place connection space in the corresponding direction Half of the span, the cast-in-place concrete layer extends to and fills the remaining space in the end-cast-in-place connection space, and is consolidated with the end support body, the upper end connects the steel bars and the lower end The connecting steel bars are consolidated in the cast-in-place concrete layer, the side support includes a side support body, and the side support body is provided with a side cast-in-place connection space corresponding to the side of the floor, and the demolition-free The upper side connecting steel bar and the lower side connecting steel bar of the non-metallic bottom plate fixed-form laminated slab extend to the side cast-in-place connection space, and the bottom plate of the non-demolition-free non-metallic bottom plate solid-form laminated slab does not extend to the side cast-in-place connection space The lateral span of the upper layer side connecting reinforcement in the side cast-in-place connection space is preferably greater than half of the span of the side cast-in-place connection space in the corresponding direction, and the front side of the upper layer side connection reinforcement is bent downward into a vertical section, the vertical span of the vertical section of the upper side connecting reinforcement in the side cast-in-place connection space is preferably greater than half of the span of the side cast-in-place connection space in the corresponding direction, and the cast-in-place concrete layer extend to and fill the remaining space in the side cast-in-place connection space, and be consolidated with the side support body, the upper layer side connection reinforcement and the lower layer side connection reinforcement are consolidated on the cast-in-place concrete layer Inside. 8. The floor according to claim 6 or 7, characterized in that when the non-demolition-free non-metallic bottom plate solid-form laminated slab is a two-way slab, the transverse connecting reinforcement on the adjacent side extends to the adjacent non-demolition On the bottom plate of the non-metallic bottom plate and solid-form laminated slab, the mutual anchorage area of the transverse connecting steel bars of two adjacent non-demolition-free non-metallic bottom-plate and solid-form laminated slabs is formed. , above the joint area of the two bottom plates, there is an additional transverse connecting steel bar, with or without additional longitudinal reinforcing bars, the additional transverse connecting steel bar spans the joint between two adjacent bottom plates, and the two ends are respectively located at the adjacent Above the two bottom plates, the additional transverse connecting reinforcement is vertically located between the corresponding lower reinforcement and the upper reinforcement, and the additional longitudinal reinforcement is located above or below the additional horizontal connecting reinforcement, and at the intersection of each other touching or adjacent to each other. 9. A construction method for a floor, wherein the floor is the floor described in any one of claims 6-8, and is provided with a supporting system for supporting the non-demolition-free non-metal base plate solid-form laminated plate, and the The non-demolition-free non-metal base plate fixed form laminated plate is installed in place, and the base form for pouring the cast-in-place concrete layer is formed by splicing or not splicing, and the cast-in-place concrete layer is poured on the base form. The non-demolition-free non-metal base plate fixed-form laminated plate is removed to form the floor. 10. The construction method as claimed in claim 9, wherein when a plurality of non-demolition-free non-metallic base plate solid-form laminated panels are provided, adjustment joints are left between the bottom plates of adjacent non-demolition-free non-metallic base plate solid-form laminated plates Or if there is no adjustment seam, tape or other suitable items are used to seal the seam from the bottom of the adjacent non-demolition non-metallic bottom plate solid-form laminated board, and the support system is provided with a strut and a main flute at the top of the strut, The main flute is directly or indirectly supported by supporting members such as secondary flutes on the bottom of the non-demolition-free non-metallic bottom plate solid-form laminated board.