Forming method of ultra-high performance concrete acoustic wallboard for theater

Abstract

The invention discloses a forming method of an ultra-high performance concrete acoustic wallboard for a theater. The forming method comprises the following steps: 1, manufacturing a reverse mold; 2, silica gel reverse molding; thirdly, a forming mold of the UHPC acoustic wall plate is erected; 4, binding the UHPC acoustic wallboard back keel and the reinforcing steel bars; fifthly, steel bar connecting pieces are arranged in the forming die; sixthly, concrete is poured; and 7, maintaining and removing the mold. The UHPC acoustic wallboard with the concave-convex textures on one side is formed after the cubic strip-shaped reflection blocks are sequentially arranged on one side of the wallboard body, sound generated by a theater can be reflected to the periphery in a scattering state through the concave-convex textures on the UHPC acoustic wallboard, the situation that the theater generates echoes, and the audio-visual effect of the theater is affected is avoided, and the sound quality of the theater is improved. And meanwhile, a bottom die of the UHPC acoustic wallboard is formed in a silica gel reverse die mode, then the UHPC acoustic wallboard is formed, the forming efficiency and the forming quality of the UHPC acoustic wallboard can be effectively improved, and turnover use of the forming die is facilitated.

Description

Technical Field

[0001] The invention belongs to the technical field of building assembly construction, and specifically relates to a molding method of an ultra-high performance concrete acoustic wall panel for a theater. Background Art

[0002] In a theater, the reflection, absorption and diffusion of sound are critical. In terms of reflection, if the wall is too smooth and flat, the sound will easily be concentrated and reflected, resulting in acoustic defects such as echoes, which will affect the audience's auditory experience. In terms of sound absorption, the wall material needs to be able to absorb sounds in a certain frequency band to reduce the problem of long reverberation time. Diffusion technology is also very important. Irregularly shaped walls or the use of diffusers can evenly disperse the sound in every corner of the space to avoid the sound focusing in certain areas. For example, the shape design of the diffuser is based on acoustic principles. By changing the reflection direction of the sound, the sound can be transmitted more naturally in the theater.

[0003] The traditional approach uses porous sound-absorbing materials, including mineral wool and glass wool, which have a large number of tiny pores inside to achieve the sound absorption effect. However, due to the material properties and plasticity of the above traditional materials, they cannot meet the design effects in some theaters with creative design effects, such as some theaters with exposed concrete walls. Because ultra-high performance concrete (UHPC) has the characteristics of ultra-high strength, high durability, high toughness, good working performance and good density, UHPC wall panels are often used as the surface of the theater. However, UHPC wall panels are generally flat and do not utilize the diffusion of sound in the theater. In addition, the theater is prone to echoes, which affects the theater's audio-visual effects. Therefore, it is necessary to propose a molding method for UHPC acoustic wall panels for theaters to solve the above problems. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide a molding method of ultra-high performance concrete acoustic wall panels for theaters in view of the deficiencies in the above-mentioned prior art. The method forms a UHPC acoustic wall panel with a concave-convex texture on one side of the wall panel body after sequentially arranging a plurality of cubic strip reflective blocks. The concave-convex texture on the UHPC acoustic wall panel can reflect the sound generated by the theater to the surroundings in a scattered state, thereby avoiding the echo of the theater affecting the audio-visual effect of the theater. At the same time, the bottom mold of the UHPC acoustic wall panel is molded out by silicone molding, and then the UHPC acoustic wall panel is molded, which can effectively improve the molding efficiency and molding quality of the UHPC acoustic wall panel and facilitate the turnover of the molding mold.

[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is: a method for forming an ultra-high performance concrete acoustic wall panel for a theater, characterized in that the ultra-high performance concrete acoustic wall panel is a UHPC acoustic wall panel, the UHPC acoustic wall panel comprises a wall panel body and a back keel, a plurality of cubic strip reflection blocks are sequentially arranged on one side of the wall panel body, the thickness of two adjacent cubic strip reflection blocks is different, the plurality of cubic strip reflection blocks are sequentially arranged along the width direction of the wall panel body to form a sound reflection plate with a concave-convex texture, and the plurality of cubic strip reflection blocks are integrally formed with the wall panel body;

[0006] The molding method comprises the following steps:

[0007] Step 1, making a reverse mold: according to the design size of the UHPC acoustic wallboard, a pedestal, a reverse mold side mold and a reverse mold end mold are made, and at the same time, a reverse mold shaping template with a concave-convex texture is shaped according to the concave-convex texture of the sound reflection plate, and the reverse mold shaping template is placed on the pedestal, and the reverse mold side mold and the reverse mold end mold are fixed on the pedestal to form a reverse mold;

[0008] The concave-convex texture of the inverted mold shaping template is consistent with the concave-convex texture of the sound reflection plate;

[0009] Step 2, silicone mold: silicone is used to mold on the mold to form a silicone template as a bottom mold for forming the UHPC acoustic wall panel;

[0010] Step 3, supporting a forming mold of a UHPC acoustic wall panel: after the silicone template is formed, a special pedestal for the wall panel is made according to the structure of the silicone template, and the formed silicone template is inverted on the special pedestal for the wall panel, and the wall panel end molds are supported at both ends of the special pedestal for the wall panel close to the silicone template to form a UHPC acoustic wall panel forming mold;

[0011] Step 4: Binding of UHPC acoustic wall panel back keel and steel bars: According to the design size of the UHPC acoustic wall panel, weld the back keel and install the lifting ring on the back keel;

[0012] Tie the steel mesh according to the thickness of the wall panel and weld the steel mesh to the back keel;

[0013] Step 5: Set the steel bar connector in the forming mold: fix the back keel above the UHPC acoustic wall panel forming mold, so that the steel mesh on one side of the back keel is placed in the UHPC acoustic wall panel forming mold, and according to the structure of the inner mold surface of the silicone template, longitudinal reinforcement is set in each groove of the silicone template, and the longitudinal reinforcement is connected to the steel mesh through the steel bar connector;

[0014] Step 6: pouring concrete: pouring concrete in layers into the UHPC acoustic wall panel forming mold to form the UHPC acoustic wall panel;

[0015] Step 7: Curing and demolding: Curing the poured UHPC acoustic wall panels. After the concrete strength of the UHPC acoustic wall panels reaches the requirements, remove the UHPC acoustic wall panel forming molds.

[0016] The above-mentioned method for forming ultra-high performance concrete acoustic wall panels for theaters is characterized in that: in step one, the pedestal, the inverted mold side mold, the inverted mold end mold and the inverted mold shaping template are all made of multi-layer plywood boards, the inverted mold shaping template is arranged close to the top of the pedestal, and the inverted mold shaping template is located in the cavity surrounded by the inverted mold end mold and the inverted mold side mold.

[0017] The above-mentioned method for forming an ultra-high performance concrete acoustic wall panel for a theater is characterized in that: a plurality of side support seats are arranged between the reverse mold end mold and the pedestal and between the reverse mold side mold and the pedestal, and the side support seats include a bottom plate arranged close to the top of the pedestal, a vertical plate arranged close to the reverse mold end mold or the reverse mold side mold, and a rib plate connected between the bottom plate and the vertical plate, and the rib plate and the bottom plate, and the rib plate and the vertical plate are perpendicular to each other;

[0018] The bottom plate and the pedestal are fastened by screws, and the inverted mold end mold and the corresponding vertical plate, as well as the inverted mold side mold and the corresponding vertical plate are fastened by screws.

[0019] The above-mentioned method for forming ultra-high performance concrete acoustic wall panels for theaters is characterized in that: in step one, gaps are provided between the two sides of the inverted mold shaping template and the inverted mold side templates on the same side thereof.

[0020] The above-mentioned method for forming an ultra-high performance concrete acoustic wall panel for a theater is characterized in that: in step 2, when silicone molding is used, glue is injected into the interior of the molding mold in layers according to the silicone thickness required for the concave-convex texture inside the molding mold; when injecting glue, when there is a position in the injection area where the silicone thickness meets the requirements, a molding back molding mold is added above the position where the silicone thickness meets the requirements, and glue injection is continued until the silicone molding is completed to form a silicone template for the UHPC acoustic wall panel.

[0021] The above-mentioned method for forming an ultra-high performance concrete acoustic wall panel for a theater is characterized in that: after the installation of the plurality of inverted mold back shaping molds is completed, the plurality of mold back shaping molds are reinforced by inverted support reinforcement strips, the top of the inverted mold back shaping mold is flush with the top of the inverted mold, and the plurality of inverted mold back shaping molds are fastened to the support reinforcement strips by screws;

[0022] When the inverted mold back molding mold is arranged closely against the inverted mold side mold, the inverted mold back molding mold and the inverted mold side mold are formed as one piece.

[0023] The above-mentioned method for forming ultra-high performance concrete acoustic wall panels for theaters is characterized in that: in step three, a plurality of side support seats for supporting and reinforcing the wall panel end molds and the silicone templates are arranged along the circumference of the special wall panel pedestal.

[0024] The above-mentioned method for forming an ultra-high performance concrete acoustic wall panel for a theater is characterized in that: the back-bearing keel includes two longitudinal keels and a plurality of transverse keels connected between the two longitudinal keels, the hanging ring is welded to the longitudinal keel, and the transverse keel and the longitudinal keel are both channel steels;

[0025] The steel mesh comprises transverse steel bars and longitudinal steel bars.

[0026] The above-mentioned method for forming an ultra-high performance concrete acoustic wall panel for a theater is characterized in that: a plurality of steel bar connectors are arranged in each groove of the silicone template, and when the width of the groove corresponding to the steel bar connector is not less than 60 mm, the steel bar connector is an "X"-shaped steel bar connector; when the width of the groove corresponding to the steel bar connector is less than 60 mm, the steel bar connector is a T-shaped steel bar connector;

[0027] The I-shaped steel bar connector is inverted in the groove, and the top two ends of the I-shaped steel bar connector are respectively welded to the longitudinal steel bars of the steel mesh. The T-shaped steel bar connector is placed in the corresponding groove, and the top two ends of the T-shaped steel bar connector are respectively welded to the longitudinal steel bars of the steel mesh.

[0028] The above-mentioned method for forming an ultra-high performance concrete acoustic wall panel for a theater is characterized in that: in step six, when pouring concrete in layers, the concave-convex texture section at the bottom of the silicone template is poured first, that is, the sound reflection plate is poured first, and after the concrete of the sound reflection plate is vibrated evenly, concrete is poured into the forming mold to form the wall panel body, and after the concrete pouring of the wall panel body is completed, a flat vibrator is used to vibrate it.

[0029] Compared with the prior art, the present invention has the following advantages:

[0030] 1. The present invention forms a UHPC acoustic wall panel with a concave-convex texture on one side by sequentially arranging a plurality of cubic strip reflective blocks on one side of the wall panel body. The concave-convex texture on the UHPC acoustic wall panel can reflect the sound generated by the theater to the surroundings in a scattered state, thereby avoiding the echo of the theater affecting the audio-visual effect of the theater.

[0031] 2. The present invention manufactures a reverse mold with the same concave-convex texture as the concave-convex texture of the UHPC acoustic wall panel in the same proportion, and then uses silicone to reverse mold in the reverse mold to obtain a silicone template as a bottom mold for forming the UHPC acoustic wall panel, so that the silicone template can be reused and can effectively improve the forming effect of the UHPC acoustic wall panel, the material cost is low, and the forming efficiency of the UHPC acoustic wall panel can be effectively improved.

[0032] 3. The present invention ties the steel mesh based on the thickness of the wall panel body, and then arranges steel connectors in the grooves of the silicone template, so that the steel connectors are connected to the steel mesh to form the steel bars of the UHPC acoustic wall panel, which can effectively improve the steel bar tying efficiency and ensure the structural strength of the UHPC acoustic wall panel.

[0033] In summary, the present invention forms a UHPC acoustic wall panel with a concave-convex texture on one side by sequentially arranging a plurality of cubic strip reflective blocks on one side of the wall panel body. The concave-convex texture on the UHPC acoustic wall panel can reflect the sound generated by the theater to the surrounding in a scattered state, thereby avoiding the echo of the theater affecting the audio-visual effect of the theater. At the same time, the bottom mold of the UHPC acoustic wall panel is molded out by silicone molding, and then the UHPC acoustic wall panel is formed, which can effectively improve the molding efficiency and molding quality of the UHPC acoustic wall panel and facilitate the turnover of the molding mold.

[0034] The technical solution of the present invention is further described in detail below through the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 It is a flowchart of the present invention.

[0036] Figure 2 It is a schematic diagram of the structure of the UHPC acoustic wall panel of the present invention.

[0037] Figure 3 It is a schematic diagram of the present invention when using a reverse molding mold to perform silicone reverse molding.

[0038] Figure 4 for Figure 3 AA section view.

[0039] Figure 5 This is a practical state diagram of the UHPC acoustic wall panel forming mold of the present invention.

[0040] Figure 6 for Figure 5 BB cross-sectional view.

[0041] Figure 7 It is a schematic diagram of the connection structure of the I-shaped steel bar connector and the steel mesh of the present invention.

[0042] Figure 8 It is a schematic diagram of the connection structure between the T-shaped steel bar connector and the steel mesh of the present invention.

[0043] Description of reference numerals:

[0044] 1—Wall panel body; 2—Cube-shaped strip reflective block; 3—Back keel;

[0045] 301—longitudinal keel; 302—transverse keel; 4—steel mesh;

[0046] 401—transverse reinforcement; 402—longitudinal reinforcement; 5—X-shaped reinforcement connector;

[0047] 6—T-shaped steel bar connector; 7—pedestal; 8—side mold;

[0048] 9—inverted mold end mold; 10—inverted mold shaping template; 11—silicone template;

[0049] 12—Special pedestal for wall panels; 13—End mold for wall panels; 14—Lifting ring;

[0050] 15—reverse mold back shaping mold; 16—support reinforcement strip; 17—cross arm;

[0051] 18—buttress; 19—side support seat; 191—bottom plate;

[0052] 192—vertical plate; 193—rib plate; 20—longitudinal reinforcement. DETAILED DESCRIPTION

[0053] like Figure 1 A method for forming an ultra-high performance concrete acoustic wall panel for a theater is shown, wherein the ultra-high performance concrete acoustic wall panel is a UHPC acoustic wall panel, and the UHPC acoustic wall panel comprises a wall panel body 1 and a back keel 3, and a plurality of cubic strip reflection blocks 2 are sequentially arranged on one side of the wall panel body 1, and the thickness of two adjacent cubic strip reflection blocks 2 is different, and the plurality of cubic strip reflection blocks 2 are sequentially arranged along the width direction of the wall panel body 1 to form a sound reflection plate with a concave-convex texture, and the plurality of cubic strip reflection blocks 2 are integrally formed with the wall panel body 1;

[0054] The molding method comprises the following steps:

[0055] Step 1, making a reverse mold: according to the design size of the UHPC acoustic wallboard, a pedestal 7, a reverse mold side mold 8 and a reverse mold end mold 9 are made, and at the same time, a reverse mold shaping template 10 with a concave-convex texture is shaped according to the concave-convex texture of the sound reflection plate, and the reverse mold shaping template 10 is placed on the pedestal 7, and the reverse mold side mold 8 and the reverse mold end mold 9 are fixed on the pedestal 7 to form a reverse mold;

[0056] The concavo-convex texture of the inverted mold shaping template 10 is consistent with the concavo-convex texture of the sound reflection plate;

[0057] Step 2, silicone mold: silicone is used to mold on the mold to form a silicone template 11 as a bottom mold for forming the UHPC acoustic wall panel, such as Figure 3 and Figure 4 As shown,

[0058] Step 3: Setting up a UHPC acoustic wall panel forming mold: After the silicone template 11 is formed, a special wall panel pedestal 12 is made according to the structure of the silicone template 11, and the formed silicone template 11 is inverted on the special wall panel pedestal 12, and a wall panel end mold 13 is set at both ends of the special wall panel pedestal 12 close to the silicone template 11 to form a UHPC acoustic wall panel forming mold;

[0059] Step 4: Binding the UHPC acoustic wall panel back keel and steel bars: According to the design size of the UHPC acoustic wall panel, weld the back keel 3 and install the lifting ring 14 on the back keel 3;

[0060] According to the thickness of the wall panel body 1, tie the steel mesh 4 and weld the steel mesh 4 to the back keel 3;

[0061] Step 5: Arrange a steel bar connector in the molding mold: fix the back keel 3 above the UHPC acoustic wall panel molding mold, so that the steel mesh 4 on one side of the back keel 3 is placed in the UHPC acoustic wall panel molding mold, and according to the structure of the inner mold surface of the silicone template 11, longitudinal bars 20 are arranged in each groove of the silicone template 11, and the longitudinal bars 20 are connected to the steel mesh 4 through the steel bar connector;

[0062] Step 6: pouring concrete: pouring concrete in layers into the UHPC acoustic wall panel forming mold to form the UHPC acoustic wall panel;

[0063] Step 7: Curing and demolding: Curing the poured UHPC acoustic wall panels. After the concrete strength of the UHPC acoustic wall panels reaches the requirements, remove the UHPC acoustic wall panel forming molds.

[0064] In actual use, a UHPC acoustic wall panel with a concave-convex texture on one side is formed by sequentially arranging a plurality of cubic strip reflective blocks 2 on one side of the wall panel body 1. The concave-convex texture on the UHPC acoustic wall panel can reflect the sound generated by the theater to the surrounding in a scattered state, thereby avoiding echoes in the theater that affect the audio-visual effects of the theater.

[0065] In addition, according to the concave-convex texture of the UHPC acoustic wall panel, a reverse mold with the same concave-convex texture as the UHPC acoustic wall panel is manufactured in the same proportion, and then silicone is used to reverse mold in the reverse mold to obtain a silicone template 11 as a bottom mold for forming the UHPC acoustic wall panel. The silicone template 11 can be reused and can effectively improve the forming effect of the UHPC acoustic wall panel. The material cost is low, and the forming efficiency of the UHPC acoustic wall panel can be effectively improved.

[0066] In particular, the longitudinal reinforcement 20 is welded and fixed to the bottom of the steel bar connector, the steel mesh 4 is tied based on the thickness of the wall panel body 1, and then the steel bar connector is arranged in the groove of the silicone template 11, so that the steel bar connector and the steel mesh 4 are connected to form the steel bars of the UHPC acoustic wall panel, which can effectively improve the efficiency of steel bar tying and ensure the structural strength of the UHPC acoustic wall panel; the longitudinal reinforcement 20 in the cubic strip reflection block 2 can be quickly and effectively connected to the steel mesh 4 in the wall panel body 1, and it will not shift during the casting process, thereby ensuring the thickness of the steel bar protective layer and the molding quality of the UHPC acoustic wall panel, and avoiding the uneven texture on one side of the UHPC acoustic wall panel and the integrity of the wall panel body 1.

[0067] During specific implementation, in step three, after the silicone template 11 is formed, it is also possible not to make a separate special pedestal 12 for wall panels. The side molds 8 and the end molds 9 are removed, and the formed silicone template 11 and the multiple back mold shaping molds 15 on its back are synchronously inverted on the pedestal 7. After the wall panel end molds 13 are supported close to the silicone template 11 at both ends of the pedestal 7, a UHPC acoustic wall panel forming mold is formed; the pedestal 7 and the multiple back mold shaping molds 15 are combined to form a special pedestal 12 for wall panels.

[0068] During specific implementation, when making the special pedestal 12 for wall panels, refer to multiple inverted mold back molding molds 15 so that the manufactured special pedestal 12 for wall panels has protrusions matching the multiple inverted mold back molding molds 15. When the silicone template 11 is inverted on the special pedestal 12 for wall panels, the protrusions on the special pedestal 12 for wall panels can effectively support the silicone template 11.

[0069] In a specific implementation, when the lifting rings 14 are installed on the back keel 3 , the lifting rings 14 are symmetrically arranged on both sides of the back keel 3 .

[0070] During the specific implementation, in step five, when the back keel 3 is fixed above the UHPC acoustic wall panel forming mold, the back keel 3 is suspended and laid flat above the UHPC acoustic wall panel forming mold through a plurality of cross arms 17, so that the steel mesh 4 on one side of the back keel 3 and the bottom of the back keel 3 are both placed in the inner cavity of the UHPC acoustic wall panel forming mold, and the top of the back keel 3 extends to above the top of the UHPC acoustic wall panel forming mold, and the cross arm 17 is passed through the hanging ring 14; in order to facilitate the placement of the cross arm 17, piers 18 are added on both sides of the wall panel special pedestal 12, so that the two ends of the cross arm 17 are respectively supported on the piers 18 on both sides.

[0071] During specific implementation, a plurality of the cubic strip-shaped reflective blocks 2 are connected in sequence, and the thickness of the cubic strip-shaped reflective blocks 2 is greater than or equal to zero.

[0072] In this embodiment, in step one, the pedestal 7, the inverted mold side mold 8, the inverted mold end mold 9 and the inverted mold shaping template 10 are all made of multi-layer plywood, the inverted mold shaping template 10 is arranged close to the top of the pedestal 7, and the inverted mold shaping template 10 is located in the cavity surrounded by the inverted mold end mold 9 and the inverted mold side mold 8.

[0073] In actual use, the pedestal 7 includes a pedestal top panel and a pedestal side panel fixed around the four axes of the bottom of the pedestal top panel, and a plurality of pedestal bottom ribs evenly arranged inside the pedestal side panels along the length direction of the pedestal 7, and the pedestal bottom ribs are perpendicular to the pedestal top panel.

[0074] In specific implementation, the inverted mold forming template 10 is made of multiple layers of plywood nailed together according to the structure of the UHPC acoustic wall panel.

[0075] In this embodiment, a plurality of side support seats 19 are arranged between the mold end mold 9 and the pedestal 7 and between the mold side mold 8 and the pedestal 7. The side support seats 19 include a bottom plate 191 arranged close to the top of the pedestal 7, a vertical plate 192 arranged close to the mold end mold 9 or the mold side mold 8, and a rib plate 193 connected between the bottom plate 191 and the vertical plate 192. The rib plate 193 and the bottom plate 191 and the rib plate 193 and the vertical plate 192 are perpendicular to each other.

[0076] The bottom plate 191 and the pedestal 7 are fastened by screws, and the inverted mold end mold 9 and the corresponding vertical plate 192 as well as the inverted mold side mold 8 and the corresponding vertical plate 192 are fastened by screws.

[0077] In actual use, the side support seat 19 is made of multi-layer glued templates.

[0078] In this embodiment, in step one, gaps are provided between the two sides of the inverted mold shaping template 10 and the inverted mold side molds 8 on the same side thereof.

[0079] In actual use, by setting a gap between the mold shaping template 10 and the mold side template 8, the two sides of the molded silicone template 11 can have a certain thickness, thereby ensuring that the side of the silicone template 11 has a certain strength, avoiding bending and deformation of the side of the silicone template 11 during concrete pouring.

[0080] In the present embodiment, in step 2, when silicone molding is used, glue is injected into the interior of the molding mold in layers according to the silicone thickness required for the concave-convex texture inside the molding mold; when injecting glue, when there is a position in the injection area where the silicone thickness meets the requirement, a molding back molding mold 15 is added above the position where the silicone thickness meets the requirement, and glue injection is continued until the silicone molding is completed, thereby forming a silicone template 11 of the UHPC acoustic wall panel.

[0081] In actual use, when the maximum thickness of the multiple cubic strip reflective blocks 2 in the sound reflection plate is small, that is, the silicone thickness required for the concave-convex texture inside the inverted mold is small, the glue can be injected at one time; when the maximum thickness of the multiple cubic strip reflective blocks 2 in the sound reflection plate is large, the glue needs to be injected in layers; specifically, the maximum pouring thickness of the silicone needs to be set. When injecting glue, when the silicone thickness at a certain position in the injection area reaches the maximum pouring thickness, that is, when there is a position in the injection area where the silicone thickness meets the requirements, it is necessary to add an inverted mold back molding mold 15 above the position where the silicone thickness meets the requirements, so as to realize the layered injection of silicone.

[0082] In a specific implementation, there are three inverted mold back shaping molds 15 , and the structures of the three inverted mold back shaping molds 15 are different. The three inverted mold back shaping molds 15 are respectively arranged in the middle and both sides of the inverted mold.

[0083] During specific implementation, the back molding mold 15 is made of plywood. By setting the back molding mold 15 and then adopting the layered injection method for molding, the thickness of the silicone is ensured, that is, the effective thickness of the silicone template 11 is met and the thickness of the local area of ​​the silicone template 11 is not thick due to the deep local concave surface, which wastes silicone and increases costs; the silicone template 11 adopts layered injection, and after the local silicone injection thickness is met, the back molding mold 15 processed in advance on the back is fixed on the back of the film, and the two ends are fixed to the mold end mold 9 with iron nails, and then the next layer of film is injected, and so on, until the injection of the silicone template 11 is completed.

[0084] In this embodiment, after the installation of the plurality of inverted mold back shaping molds 15 is completed, the plurality of mold back shaping molds 15 are reinforced by inverted support reinforcement strips 16, the top of the inverted mold back shaping mold 15 is flush with the top of the inverted mold, and the plurality of inverted mold back shaping molds 15 are fastened to the support reinforcement strips 16 by screws;

[0085] When the reverse mold back molding mold 15 is arranged closely against the reverse mold side mold 8 , the reverse mold back molding mold 15 and the reverse mold side mold 8 are integrally formed.

[0086] During specific implementation, a reverse mold back molding mold 15 is arranged close to the reverse mold side mold 8 , and the reverse mold back molding mold 15 can be used to make the silicone template 11 have an edge, so as to facilitate fixing the silicone template 11 .

[0087] In this embodiment, in step three, a plurality of side support seats 19 for supporting and reinforcing the wall panel end mold 13 and the silicone template 11 are arranged along the circumference of the wall panel dedicated base 12 .

[0088] During specific implementation, the installation structure and function of the side support seat 19 in step three are consistent with those of the side support seat 19 in step two.

[0089] In this embodiment, the back keel 3 includes two longitudinal keels 301 and a plurality of transverse keels 302 connected between the two longitudinal keels 301, the lifting ring 14 is welded to the longitudinal keel 301, and the transverse keels 302 and the longitudinal keels 301 are both channel steels;

[0090] The steel mesh 4 includes transverse steel bars 401 and longitudinal steel bars 402 .

[0091] like Figures 5 to 8 As shown, in this embodiment, a plurality of steel bar connectors are arranged in each groove of the silicone template 11. When the width of the groove corresponding to the steel bar connector is not less than 60 mm, the steel bar connector is an I-shaped steel bar connector 5; when the width of the groove corresponding to the steel bar connector is less than 60 mm, the steel bar connector is a T-shaped steel bar connector 6;

[0092] The I-shaped steel bar connector 5 is inverted in the groove, and the top two ends of the I-shaped steel bar connector 5 are respectively welded to the longitudinal steel bars 402 of the steel mesh 4, and the T-shaped steel bar connector 6 is placed in the corresponding groove, and the top two ends of the T-shaped steel bar connector 6 are respectively welded to the longitudinal steel bars 402 of the steel mesh 4.

[0093] During specific implementation, two longitudinal bars 20 are connected to the bottom of the I-shaped steel bar connector 5, and the two longitudinal bars 20 are placed in the depression of the I-shaped steel bar connector 5. A longitudinal bar 20 is connected to the bottom of the T-shaped steel bar connector 6, and a bent hook for connecting the longitudinal bars 20 is provided at the bottom of the T-shaped steel bar connector 6.

[0094] In this embodiment, in step six, when pouring concrete in layers, the concave-convex texture section at the bottom of the silicone template 11 is poured first, that is, the sound reflecting plate is poured first. After the concrete of the sound reflecting plate is vibrated evenly, concrete is poured into the molding mold to form the wall panel body 1. After the concrete pouring of the wall panel body 1 is completed, a flat vibrator is used to vibrate it.

[0095] In specific implementation, the arrangement of the concave-convex texture of the UHPC acoustic wall panels, that is, the depth of the concave-convex texture, can be adaptively adjusted according to actual conditions. Before the construction of the UHPC acoustic wall panels, firstly, according to the acoustic principle, the acoustic digital simulation software is used to simulate the shape of the diffuser of the theater wall according to the architectural structure layout of the theater and the parameters of the sound source equipment, and then the UHPC acoustic wall panels are further designed through BIM technology; according to the position, shape, plate size and weight of the acoustic wall panels, the steel mesh and the back keel are arranged through force calculation; among them, according to the arrangement of the theater speakers and the acoustic return conditions, the concave-convex texture is installed on both sides of the main speakers and the stage entrance of the auditorium. The deeper diffuser UHPC acoustic wall panels (the maximum thickness of the cubic strip reflection block 2 is 50mm) reflect the sound produced by the theater to the surrounding in a scattered state. On both sides of the auditorium far away from the stage and the main speakers of the theater, shallow diffuser UHPC acoustic wall panels with shallower concave and convex textures are installed (that is, the maximum thickness of the cubic strip reflection block 2 is 25mm). Since the back wall area of ​​the auditorium is facing the stage and the main speakers, the deep diffuser UHPC acoustic wall panels with the deepest concave and convex textures are installed (that is, the maximum thickness of the cubic strip reflection block 2 is 120mm), which reflect the sound produced by the theater to the surrounding in a scattered state to avoid echoes in the theater that affect the theater's audio-visual effects.

[0096] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any way. Any simple modification, change and equivalent structural change made to the above embodiment based on the technical essence of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. A method for forming an ultra-high performance concrete acoustic wall panel for a theater, characterized in that: The ultra-high performance concrete acoustic wall panel is a UHPC acoustic wall panel, and the UHPC acoustic wall panel comprises a wall panel body (1) and a back keel (3), a plurality of cubic strip-shaped reflection blocks (2) are sequentially arranged on one side of the wall panel body (1), the thickness of two adjacent cubic strip-shaped reflection blocks (2) are different, the plurality of cubic strip-shaped reflection blocks (2) are sequentially arranged along the width direction of the wall panel body (1) to form a sound reflection plate with a concave-convex texture, and the plurality of cubic strip-shaped reflection blocks (2) are all integrally formed with the wall panel body (1); The molding method comprises the following steps: Step 1, making a reverse mold: according to the design size of the UHPC acoustic wallboard, a pedestal (7), a reverse mold side mold (8) and a reverse mold end mold (9) are made, and at the same time, a reverse mold shaping template (10) with a concave-convex texture is shaped according to the concave-convex texture of the sound reflection plate, and the reverse mold shaping template (10) is placed on the pedestal (7), and the reverse mold side mold (8) and the reverse mold end mold (9) are fixed on the pedestal (7) to form a reverse mold; The concave-convex texture of the inverted mold shaping template (10) is consistent with the concave-convex texture of the sound reflection plate; Step 2, silicone mold: silicone is used to mold on the mold to form a silicone template (11) as a bottom mold for forming the UHPC acoustic wall panel; Step 3, supporting a molding mold for a UHPC acoustic wall panel: after the silicone template (11) is formed, a special wall panel pedestal (12) is manufactured according to the structure of the silicone template (11), and the molded silicone template (11) is inverted on the special wall panel pedestal (12), and a wall panel end mold (13) is supported at both ends of the special wall panel pedestal (12) close to the silicone template (11) to form a UHPC acoustic wall panel molding mold; Step 4: Binding the UHPC acoustic wall panel back keel and steel bars: According to the design size of the UHPC acoustic wall panel, weld the back keel (3) and install the lifting ring (14) on the back keel (3); According to the thickness of the wall panel body (1), the steel mesh (4) is tied, and the steel mesh (4) is welded to the back keel (3); Step 5: Arrange a steel bar connector in the molding mold: fix the back keel (3) above the UHPC acoustic wall panel molding mold, so that the steel mesh (4) on one side of the back keel (3) is placed in the UHPC acoustic wall panel molding mold, and according to the structure of the inner mold surface of the silicone template (11), longitudinal bars (20) are arranged in each groove of the silicone template (11), and the longitudinal bars (20) are connected to the steel mesh (4) through the steel bar connector; Step 6: pouring concrete: pouring concrete in layers into the UHPC acoustic wall panel forming mold to form the UHPC acoustic wall panel; Step 7: Curing and demolding: Curing the poured UHPC acoustic wall panels. After the concrete strength of the UHPC acoustic wall panels reaches the requirements, remove the UHPC acoustic wall panel forming molds.

2. The method for forming an ultra-high performance concrete acoustic wall panel for a theater according to claim 1, characterized in that: In step one, the pedestal (7), the inverted mold side mold (8), the inverted mold end mold (9) and the inverted mold shaping template (10) are all made of multi-layer plywood, the inverted mold shaping template (10) is arranged close to the top of the pedestal (7), and the inverted mold shaping template (10) is located in the cavity surrounded by the inverted mold end mold (9) and the inverted mold side mold (8).

3. The method for forming an ultra-high performance concrete acoustic wall panel for a theater according to claim 2, characterized in that: A plurality of side support seats (19) are arranged between the mold end mold (9) and the pedestal (7) and between the mold side mold (8) and the pedestal (7), and the side support seats (19) include a bottom plate (191) arranged close to the top of the pedestal (7), a vertical plate (192) arranged close to the mold end mold (9) or the mold side mold (8), and a rib plate (193) connected between the bottom plate (191) and the vertical plate (192), and the rib plate (193) and the bottom plate (191) and the rib plate (193) and the vertical plate (192) are perpendicular to each other; The bottom plate (191) and the pedestal (7) are fastened by screws, and the reverse mold end mold (9) and the corresponding vertical plate (192) as well as the reverse mold side mold (8) and the corresponding vertical plate (192) are fastened by screws.

4. The method for forming an ultra-high performance concrete acoustic wall panel for a theater according to claim 1, characterized in that: In step 1, gaps are provided between the two sides of the inverted mold shaping template (10) and the inverted mold side molds (8) on the same side thereof.

5. The method for forming an ultra-high performance concrete acoustic wall panel for a theater according to claim 1, characterized in that: In step 2, when silicone molding is used, glue is injected into the mold in layers according to the silicone thickness required by the concave-convex texture inside the mold; when injecting glue, when there is a position in the injection area where the silicone thickness meets the requirement, a mold back shaping mold (15) is added above the position where the silicone thickness meets the requirement, and glue injection is continued until the silicone molding is completed, thereby forming a silicone template (11) of the UHPC acoustic wall panel.

6. The method for forming an ultra-high performance concrete acoustic wall panel for a theater according to claim 5, characterized in that: After the installation of the plurality of inverted mold back shaping molds (15) is completed, the plurality of mold back shaping molds (15) are reinforced by inverted support reinforcement strips (16), the top of the inverted mold back shaping mold (15) is flush with the top of the inverted mold, and the plurality of inverted mold back shaping molds (15) are fastened to the support reinforcement strips (16) by screws; When the reverse mold back shaping mold (15) is arranged closely against the reverse mold side mold (8), the reverse mold back shaping mold (15) and the reverse mold side mold (8) are integrally formed.

7. The method for forming an ultra-high performance concrete acoustic wall panel for a theater according to claim 6, characterized in that: In step three, a plurality of side support seats (19) for supporting and reinforcing the wall panel end mold (13) and the silicone mold (11) are arranged along the circumference of the wall panel special base (12).

8. The method for forming an ultra-high performance concrete acoustic wall panel for a theater according to claim 1, characterized in that: The back keel (3) comprises two longitudinal keels (301) and a plurality of transverse keels (302) connected between the two longitudinal keels (301), the lifting ring (14) is welded to the longitudinal keels (301), and the transverse keels (302) and the longitudinal keels (301) are both channel steels; The steel mesh (4) comprises transverse steel bars (401) and longitudinal steel bars (402).

9. The method for forming an ultra-high performance concrete acoustic wall panel for a theater according to claim 1, characterized in that: A plurality of steel bar connectors are arranged in each groove of the silicone template (11); when the width of the groove corresponding to the steel bar connector is not less than 60 mm, the steel bar connector is an "X"-shaped steel bar connector (5); when the width of the groove corresponding to the steel bar connector is less than 60 mm, the steel bar connector is a T-shaped steel bar connector (6); The I-shaped steel bar connector (5) is inverted in the groove, and the top two ends of the I-shaped steel bar connector (5) are respectively welded to the longitudinal steel bars (402) of the steel mesh (4), and the T-shaped steel bar connector (6) is placed in the corresponding groove, and the top two ends of the T-shaped steel bar connector (6) are respectively welded to the longitudinal steel bars (402) of the steel mesh (4).

10. The method for forming an ultra-high performance concrete acoustic wall panel for a theater according to claim 1, characterized in that: In step six, when pouring concrete in layers, the concave-convex texture section at the bottom of the silicone template (11) is poured first, that is, the sound reflection plate is poured first. After the concrete of the sound reflection plate is vibrated evenly, concrete is poured into the molding mold to form the wall panel body (1). After the concrete pouring of the wall panel body (1) is completed, it is vibrated using a flat vibrator.

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