CN113957794A - Pier plastic pouring mold and construction method - Google Patents

Abstract

The invention relates to a pier plastic pouring mold and a construction method, wherein the pier plastic pouring mold comprises a mold body and a hoop, the mold body comprises a plurality of layers of plastic templates, each layer of plastic template comprises a plurality of plastic templates, adjacent plastic templates on the same layer are mutually connected through bolts, two adjacent layers of plastic templates are mutually connected through bolts, and a pouring cavity is formed; the anchor ear is sleeved outside each layer of plastic template, and the heads and the tails of the anchor ears are connected with each other through bolts; the periphery of the die body can be further provided with a supporting system for supporting the die body, the supporting system comprises stand columns and supporting cross rods, the outer ends of the supporting cross rods are connected with the corresponding stand columns, and the inner ends of the supporting cross rods are connected with the corresponding hoops. The invention adopts the plastic template to replace a steel mould, thereby reducing the self weight, facilitating the disassembly and the assembly and the demoulding; the supporting system is used for placing the problems of side turning and mold explosion of the mold body.

Description

Pier plastic pouring mold and construction method

Technical Field

The invention relates to a pier mold, in particular to a pier plastic pouring mold suitable for a high-speed rail reinforced concrete pier or a large-span bridge and a construction method.

Background

The pier is a building for supporting the bridge span structure and transmitting the dead load and the live load of the vehicle to the foundation, and the pier is used for supporting the bridge span structure, bearing all the loads transmitted by the upper bridge body structure and transmitting the loads and the loads of the embedded pier piles at the lower part to the foundation. For the safe and normal use of full bridges, it is required that piers and pier piles have sufficient strength, rigidity and overall stability so that excessive horizontal displacement or uneven settlement is not generated.

The structure of the existing bridge pier pouring mold is as disclosed in Chinese patent CN102409620B, and relates to a bridge pier mold, wherein four main templates are arranged in a shape like a Chinese character kou, two sides of two templates are respectively connected between every two main templates through connecting bolts to form a structure like a Chinese character kou, the outer sides of the four main templates are respectively connected with one sides of four arc templates through connecting bolts, and the other sides of the four arc templates are respectively connected with side templates through connecting bolts to form a bridge pier pouring mold cavity with a square arc angle structure; the structure is suitable for various pier structures by designing the face template, the arc template and the side template into a structure with stronger universality, and is particularly suitable for piers with the height of more than 6 meters.

However, most of the existing pier molds adopt steel molds, which have the following defects: 1) the weight of the device is heavy, the assembly and disassembly are difficult, and the time and the labor are consumed; 2) the demoulding agent is not easy to demould and needs to be coated; 3) the paint is easy to rust, and needs to be polished, derusted, repainted and stored for corrosion prevention treatment after being used; 4) the single piece has large volume and high transportation cost; 5) inconvenient maintenance or high maintenance cost after damage.

Disclosure of Invention

The invention aims to provide a pier plastic pouring die and a construction method, and aims to solve the problems that an existing pier cast-in-place steel die is heavy in self weight, difficult to demould, easy to rust and the like.

In order to achieve the purpose, the technical scheme provided by the invention is as follows:

the invention relates to a pier plastic pouring mold, which comprises a mold body and a hoop, wherein the mold body comprises a plurality of layers of plastic templates, each layer of plastic template comprises a plurality of plastic templates, adjacent plastic templates on the same layer are mutually connected through bolts, and two layers of plastic templates which are adjacent up and down are mutually connected through bolts, so that a pouring cavity is formed; the anchor ear is sleeved outside each layer of plastic formwork, and the heads and the tails of the anchor ears are connected with each other through bolts.

Preferably, the outer side surface of the plastic template is provided with criss-cross transverse reinforcing ribs and longitudinal reinforcing ribs; the longitudinal reinforcing ribs are provided with grooves, and the anchor ears are embedded into the grooves. The arrangement of the transverse reinforcing ribs and the longitudinal reinforcing ribs can enhance the strength of the plastic formwork.

Preferably, the upper edge and the lower edge of each plastic template are provided with transverse reinforcing ribs, the left edge and the right edge of each plastic template are provided with longitudinal reinforcing ribs, the adjacent plastic templates on the same layer are mutually connected through bolts arranged on the longitudinal reinforcing ribs on the left edge and the right edge, and the two adjacent plastic templates on the upper layer and the lower layer are mutually connected through bolts arranged on the transverse reinforcing ribs on the upper edge and the lower edge.

Preferably, a longitudinal groove is formed in the left side edge of each plastic template, a longitudinal protrusion is formed in the right side edge of each plastic template, and two adjacent plastic templates on the same layer are meshed through the longitudinal protrusion and the longitudinal groove; the upper edge of the plastic template is provided with a transverse groove, the lower edge of the plastic template is provided with a transverse bulge, and the two layers of plastic templates which are adjacent from top to bottom are meshed through the transverse bulge and the transverse groove.

Two adjacent plastic templates on the same layer are meshed through the longitudinal protrusions and the longitudinal grooves, and the upper and lower adjacent plastic templates are meshed through the transverse protrusions and the transverse grooves, so that seamless connection among the plastic templates is facilitated.

Preferably, the central positions of the front side and the rear side of the die body are respectively provided with a water flowing groove; the plastic formworks on the front side and the rear side of the die body are connected through a plurality of counter-pulling steel bars, and two ends of the counter-pulling steel bars are fixed on the hoops. The arrangement of the opposite-pulling reinforcing steel bars can prevent the phenomenon of mold explosion when concrete is poured.

Preferably, the hoops are connected with each other through a plurality of connecting strips which are longitudinally arranged.

Preferably, pier plastics casting mold still include the support system, the support system include stand and support horizontal pole, the stand is around the peripheral interval arrangement of mould body, all be equipped with quantity the same with the staple bolt number of piles on every stand, the position and the staple bolt one-to-one a plurality of support horizontal poles, the outer end of support horizontal pole is connected with corresponding stand, the inner of support horizontal pole is connected with the staple bolt that corresponds. The supporting system is used for supporting the mould body, prevents the mould body from turning on one's side, and the phenomenon of mould explosion appears when also further preventing to pour concrete.

Preferably, the front and the rear of the die body are respectively provided with a plurality of stand columns, the stand columns in the front and the rear correspond to each other one by one, and the tops of at least one group of stand columns in the front and the rear correspond to each other through connecting beams, so that the die is further prevented from being exploded.

The invention also relates to a construction method of the pier plastic pouring mold, which comprises the following steps:

which comprises the following steps:

1) assembling a first layer of plastic formwork, meshing two adjacent plastic formworks through a longitudinal protrusion and a longitudinal groove when the plastic formworks are assembled, connecting the two adjacent plastic formworks through bolts, and installing a plurality of layers of hoops on the outer sides to hoop the plastic formworks after the plastic formworks are assembled;

2) assembling the plastic templates layer by layer in the same manner as in the step 1), wherein when the upper and lower plastic templates are spliced, the two adjacent plastic templates are engaged through the transverse protrusions and the transverse grooves and connected with the upper and lower adjacent plastic templates through bolts to form a die body with the outer side tightly held by a plurality of layers of hoops;

3) connecting the hoops of the layers by adopting connecting battens, wherein the bottom ends of the connecting battens are connected with the foundation through bolts;

4) and installing counter-pulling steel bars, and performing drawknot on the plastic templates on the front side and the rear side.

Preferably, after the counter-pulling steel bars are installed in the step 4), a supporting system is erected on the periphery of the die body, and the method specifically comprises the following steps:

5) installing stand columns according to the positions of the die body, connecting the bottoms of the stand columns with a foundation through foundation bolts, and connecting the anchor ears of all layers with the stand columns through supporting cross rods;

6) the connecting beam is arranged to connect at least one group of front and rear corresponding upright columns for tensioning the plastic templates on the front and rear sides.

Compared with the prior art, the technical scheme provided by the invention has the following beneficial effects:

1. the pier plastic pouring mold is formed by assembling plastic templates, the plastic templates are light in weight, the assembly on site is convenient, and the assembly and disassembly are labor-saving; the plastic template is not easy to be bonded with the concrete, and the demoulding is convenient; the plastic template is not easy to rust, and after the plastic template is used, rust-proof treatment is not needed, and the plastic template only needs to be cleaned.

2. The transverse reinforcing rib and the longitudinal reinforcing rib are arranged on the outer side of the pier plastic casting mold, so that the strength of the pier plastic casting mold can be enhanced.

3. The upper edge and the left side edge of each plastic template are provided with the grooves, the lower edge and the right side edge of each plastic template are provided with the protrusions, and the adjacent plastic templates are connected in a mutual meshing mode through the grooves and the protrusions when being spliced, so that the seamless connection of the adjacent plastic templates is ensured, and the problem of slurry leakage during concrete pouring is solved.

4. The front and rear plastic templates of the pier plastic casting mold are connected through the counter-pulling steel bars, the support systems are arranged around the pier plastic casting mold, and part of the front and rear corresponding support systems are connected through the connecting beams, so that the phenomena of inclination, mold explosion and the like can be effectively prevented.

Drawings

Fig. 1 is a perspective view of a pier plastic casting mold according to example 1;

fig. 2 is a perspective view of a pier plastic casting mold according to embodiment 2;

FIG. 3 is a schematic view of the connection of adjacent plastic forms viewed from a front left perspective;

FIG. 4 is a schematic view of the connection of adjacent plastic forms viewed from the front right;

fig. 5 is a schematic structural view of the hoops connected end to end.

Description of the drawings: 1-a mould body, 11-a plastic template, 111-a transverse reinforcing rib, 112-a longitudinal reinforcing rib, 113-a groove, 114-a longitudinal groove, 115-a longitudinal protrusion, 116-a transverse groove, 117-a transverse protrusion, 12-a hoop, 13-a flume, 2-a support system, 21-a column, 22-a support cross bar, 3-a diagonal reinforcing bar, 4-a connecting batten, 5-a connecting beam and 6-a bolt.

Detailed Description

For further understanding of the present invention, the present invention will be described in detail with reference to examples, which are provided for illustration of the present invention but are not intended to limit the scope of the present invention.

Example 1

Referring to fig. 1, the pier plastic casting mold according to the embodiment includes a mold body 1 and a hoop 12, where the mold body 1 includes a plurality of layers of plastic formworks 11, and each layer of plastic formworks 11 includes a plurality of plastic formworks 11.

Referring to fig. 3 to 5, the outer side surface of each plastic formwork 11 is provided with criss-cross transverse reinforcing ribs 111 and longitudinal reinforcing ribs 112 to enhance the strength of the plastic formwork 11; wherein, the transverse reinforcing ribs 111 at the uppermost layer and the transverse reinforcing ribs 111 at the lowermost layer are respectively arranged along the upper edge and the lower edge of the plastic template 11, and the longitudinal reinforcing ribs 112 at the leftmost side and the rightmost side are respectively arranged along the left edge and the right edge of the plastic template 11; the longitudinal reinforcing rib 112 is provided with a groove 113. The left edge of the plastic template 11 is provided with a longitudinal groove 114, the right edge is provided with a longitudinal protrusion 115, the upper edge is provided with a transverse groove 116, and the lower edge is provided with a transverse protrusion 117.

Two adjacent plastic formworks 11 on the same layer are meshed through a longitudinal protrusion 115 and a longitudinal groove 114 and are connected with each other through bolts 6 arranged on longitudinal reinforcing ribs 112 at the left edge and the right edge; the two layers of plastic templates 11 adjacent to each other from top to bottom are occluded with each other through a transverse protrusion 117 and a transverse groove 116, and are connected with each other through bolts 6 arranged on the transverse reinforcing ribs 111 at the upper edge and the lower edge, so that a pouring cavity is formed, the cross section of the lower half of the pouring cavity is the same in size, and the upper half of the pouring cavity is in a horn mouth shape with the gradually increased cross section size. The anchor ear 12 is sleeved outside each layer of plastic formwork 11 and embedded in the groove 113, a plurality of layers of anchor ears 12 can be arranged outside each layer of plastic formwork 11, and the heads and the tails of the anchor ears 12 are connected with each other through bolts 6; the anchor ears 12 are connected with each other by a plurality of connecting strips 4 which are arranged longitudinally.

For the phenomenon that produces the exploding mould when preventing pier concrete placement, this embodiment has set up a plurality of groups between the plastic formwork 11 of the front and back side of mould body 1 and has pulled the reinforcing bar 3 to the drawing, through pulling the reinforcing bar 3 with the plastic formwork 11 interconnect of front and back side, fixes on the staple bolt 3 both ends to the drawing reinforcing bar.

In addition, in order to form regions for installing drain pipes on both sides of the pier after the pier is molded, the present embodiment is provided with one gutter 13 at each of the front and rear center positions of the mold body 1.

The construction steps of the pier plastic pouring mold related to the embodiment comprise:

1) assembling the first layer of plastic formwork 11, meshing two adjacent plastic formworks 11 through a longitudinal protrusion 115 and a longitudinal groove 114 when assembling the plastic formworks 11, then connecting the two adjacent plastic formworks 11 by using bolts 6, and installing a plurality of layers of hoops 12 on the outer sides to hoop the plastic formworks 11 after the plastic formworks 11 are assembled;

2) assembling the plastic formworks 11 layer by layer in the same manner as in the step 1), wherein when the upper and lower plastic formworks 11 are assembled, the two adjacent plastic formworks 11 are engaged with each other through the transverse protrusions 117 and the transverse grooves 116, and the upper and lower adjacent plastic formworks 11 are connected through the bolts 6 to form the mold body 1 tightly held by the multilayer hoops 12;

3) connecting the hoops 12 of each layer by adopting the connecting battens 4, wherein the bottom ends of the connecting battens 4 are connected with the foundation through bolts;

4) the installation is to the lacing wire 3, carries out the drawknot to the plastic formwork of front and back side, and this embodiment sets up 3 rows to the lacing wire 3.

After the die is installed, a reinforcement cage can be hung into the cavity, and concrete is poured to form the pier.

Example 2

Referring to fig. 2, the pier plastic casting mold according to the embodiment includes a mold body 1, an anchor ear 12, and a support system 2.

Referring to fig. 3-5, the mold body 1 includes a plurality of layers of plastic templates 11, and each layer of plastic templates 11 includes a plurality of plastic templates 11. The outer side surface of each plastic template 11 is provided with a criss-cross transverse reinforcing rib 111 and a longitudinal reinforcing rib 112 so as to enhance the strength of the plastic template 11; wherein, the transverse reinforcing ribs 111 at the uppermost layer and the transverse reinforcing ribs 111 at the lowermost layer are respectively arranged along the upper edge and the lower edge of the plastic template 11, and the longitudinal reinforcing ribs 112 at the leftmost side and the rightmost side are respectively arranged along the left edge and the right edge of the plastic template 11; the longitudinal reinforcing rib 112 is provided with a groove 113. The left edge of the plastic template 11 is provided with a longitudinal groove 114, the right edge is provided with a longitudinal protrusion 115, the upper edge is provided with a transverse groove 116, and the lower edge is provided with a transverse protrusion 117.

Two adjacent plastic formworks 11 on the same layer are meshed through a longitudinal protrusion 115 and a longitudinal groove 114 and are connected with each other through bolts 6 arranged on longitudinal reinforcing ribs 112 at the left edge and the right edge; the two layers of plastic templates 11 adjacent to each other from top to bottom are occluded with each other through a transverse protrusion 117 and a transverse groove 116, and are connected with each other through bolts 6 arranged on the transverse reinforcing ribs 111 at the upper edge and the lower edge, so that a pouring cavity is formed, the cross section of the lower half of the pouring cavity is the same in size, and the upper half of the pouring cavity is in a horn mouth shape with the gradually increased cross section size. The anchor ear 12 is sleeved outside each layer of plastic formwork 11 and embedded in the groove 113, a plurality of layers of anchor ears 12 can be arranged outside each layer of plastic formwork 11, and the heads and the tails of the anchor ears 12 are connected with each other through bolts 6; the anchor ears 12 are connected with each other by a plurality of connecting strips 4 which are arranged longitudinally.

Support system 2 include stand 21 and support horizontal pole 22, stand 21 arranges around the peripheral interval of mould body 1, this embodiment respectively sets up four stands 21 in the front and back of mould body 1, and the stand 21 one-to-one of front and back, all be equipped with quantity and 12 layers of staple bolt the same on every stand 21, a plurality of support horizontal poles 22 of position and staple bolt 12 one-to-one, the outer end of supporting horizontal pole 22 is connected with corresponding stand 21, the inner of supporting horizontal pole 22 is connected with the staple bolt 12 that corresponds.

For the phenomenon that produces the exploding mould when preventing pier concrete placement, this embodiment has set up a plurality of groups between the plastic formwork 11 of the front and back side of mould body 1 and has pulled the reinforcing bar 3 to the drawing, through pulling the reinforcing bar 3 with the plastic formwork 11 interconnect of front and back side, fixes on the staple bolt 3 both ends to the drawing reinforcing bar. For a large bridge pier, a large amount of concrete needs to be poured into a cavity of the die body 1, and therefore, a plurality of counter-pulling steel bars 3 need to be additionally arranged; however, the tie bars 3 are excessively arranged, and a plurality of small holes are formed in the positions of the tie bars 3 after the pier is formed, which affects the beauty of the pier, so that compared with embodiment 1, the number of the tie bars 3 is reduced in this embodiment (as shown in fig. 1 and 2, embodiment 1 is provided with 3 sets of tie bars 3, but this embodiment is provided with only 1 set of tie bars 3), and meanwhile, the tops of two sets of front and rear corresponding columns 21 are connected with each other through the connecting beam 5, the connecting beam 5 replaces part of the tie bars 3, and the plastic formworks 11 on the front and rear sides are tensioned.

In addition, in order to form regions for installing drain pipes on both sides of the pier after the pier is molded, the present embodiment is provided with one gutter 13 at each of the front and rear center positions of the mold body 1.

The construction steps of the pier plastic pouring mold related by the invention comprise:

1) assembling the first layer of plastic formwork 11, meshing two adjacent plastic formworks 11 through a longitudinal protrusion 115 and a longitudinal groove 114 when assembling the plastic formworks 11, then connecting the two adjacent plastic formworks 11 by using bolts 6, and installing a plurality of layers of hoops 12 on the outer sides to hoop the plastic formworks 11 after the plastic formworks 11 are assembled;

2) assembling the plastic formworks 11 layer by layer in the same manner as in the step 1), wherein when the upper and lower plastic formworks 11 are assembled, the two adjacent plastic formworks 11 are engaged with each other through the transverse protrusions 117 and the transverse grooves 116, and the upper and lower adjacent plastic formworks 11 are connected through the bolts 6 to form the mold body 1 tightly held by the multilayer hoops 12;

3) connecting the hoops 12 of each layer by adopting the connecting battens 4, wherein the bottom ends of the connecting battens 4 are connected with the foundation through bolts;

4) installing counter-pulling steel bars 3, and performing drawknot on the plastic templates at the front side and the rear side, wherein 3 rows of counter-pulling steel bars 3 are arranged in the embodiment;

5) installing an upright post 21 according to the position of the die body 1, connecting the bottom of the upright post 21 with a foundation through an anchor bolt, and connecting each layer of hoop 12 with the upright post 21 through a supporting cross rod 22;

6) the connecting beam 5 is arranged to connect two sets of front and rear corresponding upright posts 21 for tensioning the plastic formworks at the front and rear sides.

After the die is installed, a reinforcement cage can be hung into the cavity, and concrete is poured to form the pier.

The present invention has been described in detail with reference to the embodiments, but the description is only for the preferred embodiments of the present invention and should not be construed as limiting the scope of the present invention. All equivalent changes and modifications made within the scope of the present invention shall fall within the scope of the present invention.

Claims (10)

1. The utility model provides a pier plastic pouring mould which characterized in that: the mould comprises a mould body and a hoop, wherein the mould body comprises a plurality of layers of plastic templates, each layer of plastic template comprises a plurality of plastic templates, adjacent plastic templates on the same layer are mutually connected through bolts, and two layers of plastic templates which are adjacent up and down are mutually connected through bolts, so that a pouring cavity is formed; the anchor ear is sleeved outside each layer of plastic formwork, and the heads and the tails of the anchor ears are connected with each other through bolts.

2. The pier plastic pouring mold according to claim 1, wherein: the outer side surface of the plastic template is provided with criss-cross transverse reinforcing ribs and longitudinal reinforcing ribs; the longitudinal reinforcing ribs are provided with grooves, and the anchor ears are embedded into the grooves.

3. The pier plastic pouring mold according to claim 2, wherein: the upper edge and the lower edge of each plastic template are respectively provided with a transverse reinforcing rib, the left edge and the right edge of each plastic template are respectively provided with a longitudinal reinforcing rib, the plastic templates adjacent to each other at the same layer are mutually connected through bolts arranged on the longitudinal reinforcing ribs at the left edge and the right edge, and the two layers of plastic templates adjacent to each other at the upper edge and the lower edge are mutually connected through bolts arranged on the transverse reinforcing ribs at the upper edge and the lower edge.

4. The pier plastic pouring mold according to claim 1, wherein: the left side edge of the plastic template is provided with a longitudinal groove, the right side edge of the plastic template is provided with a longitudinal bulge, and two adjacent plastic templates on the same layer are meshed through the longitudinal bulge and the longitudinal groove; the upper edge of the plastic template is provided with a transverse groove, the lower edge of the plastic template is provided with a transverse bulge, and the two layers of plastic templates which are adjacent from top to bottom are meshed through the transverse bulge and the transverse groove.

5. The pier plastic pouring mold according to claim 1, wherein: the central positions of the front side and the rear side of the die body are respectively provided with a water flowing groove; the plastic formworks on the front side and the rear side of the die body are connected through a plurality of counter-pulling steel bars, and two ends of the counter-pulling steel bars are fixed on the hoops.

6. The pier plastic pouring mold according to claim 1, wherein: the hoops are connected with each other through a plurality of connecting strips which are longitudinally arranged.

7. The pier plastic pouring mold according to claim 1, wherein: the mold further comprises a supporting system, the supporting system comprises stand columns and supporting cross rods, the stand columns are arranged at intervals around the periphery of the mold body, a plurality of supporting cross rods are arranged on each stand column, the number of the supporting cross rods is the same as the number of the hoops, the positions of the supporting cross rods correspond to the hoops one to one, the outer ends of the supporting cross rods are connected with the corresponding stand columns, and the inner ends of the supporting cross rods are connected with the corresponding hoops.

8. The pier plastic pouring mold of claim 7, wherein: the front and back sides of the die body are respectively provided with a plurality of stand columns, the stand columns in the front and back sides are in one-to-one correspondence, and the tops of at least one group of stand columns in the front and back correspondence are connected with each other through connecting beams.

9. The construction method of the pier plastic pouring mold according to claim 1, characterized by comprising the following steps: which comprises the following steps:

1) assembling a first layer of plastic formwork, meshing two adjacent plastic formworks through a longitudinal protrusion and a longitudinal groove when the plastic formworks are assembled, connecting the two adjacent plastic formworks through bolts, and installing a plurality of layers of hoops on the outer sides to hoop the plastic formworks after the plastic formworks are assembled;

2) assembling the plastic templates layer by layer in the same manner as in the step 1), wherein when the upper and lower plastic templates are spliced, the two adjacent plastic templates are engaged through the transverse protrusions and the transverse grooves and connected with the upper and lower adjacent plastic templates through bolts to form a die body with the outer side tightly held by a plurality of layers of hoops;

3) connecting the hoops of the layers by adopting connecting battens, wherein the bottom ends of the connecting battens are connected with the foundation through bolts;

4) and installing counter-pulling steel bars, and performing drawknot on the plastic templates on the front side and the rear side.

10. The construction method of the pier plastic pouring mold according to claim 9, wherein: step 4) after installing the counter-pulling reinforcing steel bar, prop up at the periphery of mould body and establish the support system, concrete step is:

5) installing stand columns according to the positions of the die body, connecting the bottoms of the stand columns with a foundation through foundation bolts, and connecting the anchor ears of all layers with the stand columns through supporting cross rods;

6) the connecting beam is arranged to connect at least one group of front and rear corresponding upright columns for tensioning the plastic templates on the front and rear sides.

Images