CN113463911B - Foundation post-cast strip template and construction method for casting post-cast strip - Google Patents
Foundation post-cast strip template and construction method for casting post-cast strip Download PDFInfo
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- CN113463911B CN113463911B CN202110714759.6A CN202110714759A CN113463911B CN 113463911 B CN113463911 B CN 113463911B CN 202110714759 A CN202110714759 A CN 202110714759A CN 113463911 B CN113463911 B CN 113463911B
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G13/00—Falsework, forms, or shutterings for particular parts of buildings, e.g. stairs, steps, cornices, balconies foundations, sills
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/66—Sealings
- E04B1/68—Sealings of joints, e.g. expansion joints
- E04B1/6801—Fillings therefor
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/66—Sealings
- E04B1/68—Sealings of joints, e.g. expansion joints
- E04B1/6806—Waterstops
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G11/00—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs
- E04G11/36—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs for floors, ceilings, or roofs of plane or curved surfaces end formpanels for floor shutterings
- E04G11/365—Stop-end shutterings
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- On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
Abstract
The application relates to the field of building construction, in particular to a foundation post-cast strip template and a construction method for casting a post-cast strip, wherein the template comprises a main board, a mounting hole for a water steel plate to pass through is formed in the main board, two rows of jacks are respectively formed in two sides of the mounting hole in the main board, a plurality of jacks in the same row are arranged at intervals along the length direction of the main board, and two rows of jacks are respectively used for reinforcing steel bars on the upper layer and the lower layer of a foundation bottom plate to pass through; a grouting groove is formed in the side wall of one side of the main board, and a grouting hole communicated with the grouting groove is formed in the other side of the main board. Compared with the prior art, the scheme does not need to reuse a mortar plugging template, saves the cleaning of mortar, saves the preparation time before pouring a large amount of post-cast strips, and further improves the construction efficiency of the post-cast strips.
Description
Technical Field
The application relates to the field of building construction, in particular to a foundation post-cast strip template and a construction method for pouring a post-cast strip.
Background
The post-cast strip is a concrete strip reserved at the corresponding position of a foundation slab, a wall and a beam according to the design or construction specification requirement in order to prevent harmful cracks possibly generated by uneven self shrinkage or uneven settlement of a cast-in-place reinforced concrete structure in building construction.
In the construction process of the building foundation, after the cushion layer of the foundation is poured, the bottom plate of the foundation is constructed on the cushion layer, and the position of the post-pouring belt is reserved. Because the post-cast strip is one part of the bottom plate, the reinforcing steel bars in the post-cast strip are connected with the reinforcing steel bars of other parts of the bottom plate, and the stress of the post-cast strip and other parts of the bottom plate can be transferred through the reinforcing steel bars, the difference is only in the sequence of concrete pouring, the concrete on the two sides of the post-cast strip is poured firstly, and the concrete in the post-cast strip is poured after waiting for a period of time.
When the position of the post-cast strip is reserved, because the steel bars in the post-cast strip need to be bound with the steel bars on two sides of the post-cast strip to form a whole, after the position of the post-cast strip is determined by paying off in site construction, the lower layer of steel bars of the bottom plate are bound on the cushion layer, then a template fixedly used for separating the post-cast strip is erected on the lower layer of steel bars, a waterproof water stop steel plate is installed on the template, and finally the upper layer of steel bars of the bottom plate are bound, so that a large gap is reserved between the template and the cushion layer due to the existence of the lower layer of steel bars. In order to prevent concrete on two sides of the post-cast strip from leaking into the post-cast strip from the lower part of the template, the current common method is to use mortar to block gaps below the template, the mortar can play a role in preventing the concrete from leaking, but because the strength grade of the mortar is low, before the concrete of the post-cast strip is poured, all the mortar of the blocking template needs to be chiseled off and is cleaned out of the post-cast strip, at the moment, because reinforcing steel bars in the post-cast strip are bound, a constructor wastes time and labor when cleaning the mortar, the preparation time before pouring the post-cast strip is greatly prolonged, and further the construction efficiency of the post-cast strip is reduced.
Disclosure of Invention
In order to save preparation time before casting the post-cast strip and improve the construction efficiency of the post-cast strip, the application provides a foundation post-cast strip template and a construction method for casting the post-cast strip.
On the one hand, the base post-cast strip template that this application provided adopts following technical scheme:
a foundation post-cast strip template comprises a main board, wherein a mounting hole for a water steel plate to pass through is formed in the main board, two rows of jacks are formed in the main board on two sides of the mounting hole respectively, a plurality of jacks in the same row are arranged at intervals along the length direction of the main board, and the two rows of jacks are used for reinforcing steel bars on the upper layer and the lower layer of a foundation bottom plate to pass through respectively; a grouting groove is formed in the side wall of one side of the main board, and a grouting hole communicated with the grouting groove is formed in the other side of the main board.
By adopting the technical scheme, the main board is processed before the post-cast strip is constructed, and the jacks for the two rows of steel bars to pass through are formed in the main board according to the distance between the steel bars in the constructed bottom board. After the position unwrapping wire of post-cast strip is confirmed, constructor fixes the polylith mainboard of concatenation one by one along the position of unwrapping wire, places the one side that the grout groove was seted up to the mainboard on basic bed course. After the main boards on the two sides of the post-cast strip are completely installed, the reinforcing steel bars of the foundation slab begin to be bound, the reinforcing steel bars on the post-cast strip are firstly bound, the reinforcing steel bars penetrate through the insertion holes in the main boards on the two sides of the post-cast strip, the control of the distance between the reinforcing steel bars is facilitated, and the construction personnel can bind the overlapped reinforcing steel bars from the post-cast strip to the two sides. The in-process of ligature reinforcing bar inserts the stagnant water steel sheet in the mounting hole, installs stagnant water steel sheet after the lower floor's reinforcing bar ligature of bottom plate is finished, ligature the upper reinforcing bar of bottom plate again. After the reinforcing bar is bound, the constructor injects grout into the grouting groove through the grouting hole, after the grout solidifies, the gap that exists between mainboard and the bed course can be plugged, when pouring the concrete that the bottom plate is located the post-cast strip both sides, then can save the position between lower floor's reinforcing bar and the bed course and use the mortar shutoff, thereby when pouring the post-cast strip concrete, also saved the clearance to the mortar, practiced thrift the preparation time before pouring the post-cast strip in a large number, and then improved the efficiency of construction of post-cast strip.
Preferably, the mainboard includes the panel, establishes the curb plate of panel both sides and establishes the end plate at the panel both ends, and mounting hole and jack are seted up on the panel, and the slip casting groove is seted up on one of them side curb plate of mainboard, and the slip casting hole is seted up on one of them end plate of mainboard.
Through adopting above-mentioned technical scheme, during the installation mainboard, be provided with the one side orientation post-cast strip's of curb plate and end plate direction with the mainboard, when pouring the concrete of post-cast strip both sides, curb plate and end plate can promote the ability that the panel resisted the deformation, make under the circumstances that mainboard self weight is lighter, ensure that the mainboard has the intensity that enough fender concrete.
Preferably, the auxiliary plate is arranged on the side plate of the main plate, which is far away from the grouting groove, and the auxiliary plate is positioned on the side plate, which is far away from the panel.
Through adopting above-mentioned technical scheme, the position of mainboard is fixed the back, and constructor installs the subplate at the top of mainboard, when pouring the concrete of post-cast strip both sides, the surface of concrete can be higher than the top of mainboard to when pouring the post-cast strip concrete afterwards, tear the subplate aside, the concrete of post-cast strip can flush with the concrete surface that both sides were watered earlier, has avoided the post-cast strip to have great clearance with the concrete surface of both sides.
Preferably, a plurality of fixing holes are formed in the side plate connected with the auxiliary plate, and the auxiliary plate is connected with the side plate through bolts and mounting holes in a threaded mode.
Through adopting above-mentioned technical scheme, the setting of fixed orifices and bolt for the installation and the dismantlement of subplate can all conveniently go on.
Preferably, the end plate at one end of each main board is provided with a positioning block, the end plate at the other end of each main board is provided with a positioning groove, and the positioning blocks between the adjacent main boards are in splicing fit with the positioning grooves.
Through adopting above-mentioned technical scheme, when splicing the mainboard along putting the line of deciding, constructor can realize fast just to the concatenation between the adjacent mainboard through the grafting cooperation of accomplishing locating piece and constant head tank, can also reduce the gap between the mainboard tip.
Preferably, the width of the cross section of the positioning block is gradually reduced along the direction away from the adjacent end plate, and the notch of the positioning groove is formed in the flaring matched with the positioning block in an inserting mode.
Through adopting above-mentioned technical scheme, with the constant head tank complex locating piece of pegging graft when inserting the constant head tank, the flaring setting of locating piece can play the guide effect to the locating piece, makes in the locating piece can insert the constant head tank fast more conveniently, helps reducing the time that constructor just spent locating piece and constant head tank.
Preferably, the panel is provided with a plurality of convex particles which are respectively convex towards two sides of the panel.
Through adopting above-mentioned technical scheme, the setting of protruding grain is used for increasing the roughness of panel, makes the panel more closely knit firm with the concrete bonding of both sides.
On the other hand, the application also provides a construction method for pouring the post-cast strip, which is used for post-cast strip construction using the foundation post-cast strip template and adopts the following technical scheme:
s1, processing a main board, and arranging jacks on the main board according to the positions and the intervals of the steel bars in the constructed foundation slab;
s2, mounting the main board, paying off the foundation cushion layer to determine the position of the post-cast strip, and fixing the main board along the paying off position;
s3, binding bottom plate steel bars, namely binding the lower layer steel bars of the bottom plate, then installing the water stop steel plate on the main plate, and then binding the upper layer steel bars of the bottom plate;
s4, grouting into the grouting holes of the main boards to enable the grouting grooves of each main board to be filled with cement slurry;
s5, after the cement paste is solidified and formed, pouring concrete on the two sides of the post-cast strip by the bottom plate;
and S6, after the concrete on the two sides of the post-cast strip is solidified and formed, pouring the concrete of the post-cast strip.
Through adopting above-mentioned technical scheme, use the mainboard to separate out the position of post-cast strip, can support the bed course of basis with the mainboard, the while cooperation is to the grout inslot injection cement thick liquid of mainboard to further seal up the gap between mainboard and the bed course, thereby can save and pour the gap that the mortar comes between original template of shutoff and the bed course, so follow-up before the post-cast strip of construction, need not to spend the plenty of time again and clear up the mortar, and then can greatly improve the efficiency of construction in post-cast strip.
In summary, the present application includes at least one of the following beneficial technical effects:
1. through the arrangement of the main board, the jacks, the grouting grooves and the grouting holes, the step of using mortar to plug the template can be omitted, so that when the post-cast strip is poured, the mortar does not need to be cleaned, a large amount of preparation time before the post-cast strip is poured is saved, and the construction efficiency of the post-cast strip is improved;
2. the main board is provided with the panel, the side plates and the end plates, so that the weight of the main board can be lighter under the condition that the strength of the main board can support and block concrete;
3. through the arrangement of the auxiliary plates, the concrete of the post-cast strip can be flush with the surfaces of the concrete which is cast at the two sides in advance, so that a larger gap is avoided between the post-cast strip and the surfaces of the concrete at the two sides;
4. through the setting of locating piece and constant head tank, can realize fast just to the concatenation between the adjacent mainboard, can also reduce the gap between the mainboard tip.
Drawings
FIG. 1 is a schematic view showing the overall structure of a basic post-cast strip template in an embodiment of the present application;
FIG. 2 is a schematic view of a motherboard, wherein the view angle is shown on the side of the motherboard not shown in FIG. 1;
FIG. 3 is a schematic view showing the splicing between the main boards and the installation of the water stop steel plates on the main boards;
FIG. 4 is a schematic view mainly showing the positions of a grouting groove and a grouting hole on a main board;
FIG. 5 is a schematic view of a joint showing the post-cast strip when no concrete is being cast;
fig. 6 is a schematic view showing a joint after concrete has been poured into the post-cast strip.
Description of reference numerals: 1. a cushion layer; 2. a base plate; 3. post-pouring a belt; 4. reinforcing steel bars; 5. a water stop steel plate; 6. a main board; 61. a panel; 611. mounting holes; 612. a jack; 613. convex particles; 62. a side plate; 621. grouting grooves; 622. a fixing hole; 63. an end plate; 631. grouting holes; 632. positioning blocks; 633. positioning a groove; 7. a sub-board; 71. and (4) bolts.
Detailed Description
The present application is described in further detail below with reference to figures 1-6.
The embodiment of the application discloses a foundation post-cast strip template. Referring to fig. 1, the template includes mainboard 6 and subplate 7, wherein mainboard 6 be used for with 1 butt of bed course of basis, the subplate 7 is installed in the top side of mainboard 6, on 5 and the reinforcing bar 4 of foundation bottom plate 2 of stagnant water steel sheet all worn to locate mainboard 6. When erecting the template of post-cast strip 3, polylith mainboard 6 supports the butt in proper order on bed course 1 along the length direction of post-cast strip 3 and arranges, separates the position of post-cast strip 3 through two rows of spaced mainboard 6 of fixed, then fixes subplate 7 at the top side of mainboard 6, and the template of construction post-cast strip 3 just is fixed the completion.
Referring to fig. 1 and 2, the main board 6 includes a panel 61, two side boards 62 and two end boards 63, wherein the two side boards 62 are respectively disposed at two sides arranged along the width direction of the panel 61, the length direction of the side boards 62 is parallel to the length direction of the panel 61, and the width direction of the side boards 62 is perpendicular to the panel 61; the two end plates 63 are respectively positioned at two ends of the panel 61 in the length direction, the length direction of the end plates 63 is parallel to the width direction of the panel 61, and the width direction of the end plates 63 is perpendicular to the panel 61. The two side plates 62 and the two end plates 63 are both connected with the panel 61 at one side and are both located at the same side of the panel 61.
The mainboard 6 sets up to constitute by panel 61, curb plate 62 and end plate 63 for guarantee that mainboard 6 has under the sufficient intensity circumstances of retaining concrete, alleviate mainboard 6's self weight, make things convenient for constructor to mainboard 6's transport. When the main plate 6 is erected, the surface of the panel 61 provided with the side plate 62 and the end plate 63 faces the direction of the post-pouring belt 3, the panel 61 is used for supporting the concrete of the pre-pouring part of the bottom plate 2, and when the panel 61 bears the lateral pressure of the concrete, the side plate 62 and the end plate 63 are stressed together, so that the deformation resistance of the panel 61 is improved.
Referring to fig. 1, a positioning block 632 is disposed on the end plate 63 at one end of the main plate 6, the positioning block 632 is fixedly connected to a side wall of the end plate 63 away from the panel 61, a length direction of the positioning block 632 is the same as a length direction of the end plate 63, a cross section of the positioning block 632 is disposed in an isosceles trapezoid shape, and a width of the positioning block 632 gradually increases toward a direction close to the panel 61. A positioning groove 633 is arranged on the end plate 63 at the other end of the main board 6, and the positioning groove 633 is an expanding opening capable of being matched with the positioning block 632 in an inserting manner.
When splicing the main boards 6, the constructor can quickly install the main boards 6 by directly splicing every two adjacent main boards 6 through the splicing matching of the positioning blocks 632 and the positioning grooves 633 between the end parts of the main boards 6 as shown in fig. 3, so that convenience is brought to the constructor for installing the main boards 6. After locating piece 632 embedded into constant head tank 633, when pouring the concrete of post-cast strip 3 both sides, the stroke increase that the grout of concrete spills through the gap between the 6 tip of mainboard, so be difficult for taking place to leak thick liquid between the 6 tip of mainboard, secondly can make be difficult to take place the dislocation between the 6 tip of adjacent mainboard. The trapezoidal setting of locating piece 632 cross section corresponds the complex flaring setting with constant head tank 633, can play the effect of direction when locating piece 632 imbeds constant head tank 633, makes locating piece 632 can insert in constant head tank 633 fast more conveniently, helps reducing the time that constructor just spent to locating piece 632 and constant head tank 633.
Referring to fig. 3, the water-stop steel plate 5 is mounted on the panel 61 of the main board 6, a mounting hole 611 is formed in the panel 61, and the water-stop steel plate 5 is mounted on the panel 61 by being inserted into the mounting hole 611. The mounting hole 611 is located in the middle of the panel 61, and the distance between the mounting hole 611 and the two side plates 62 on the two sides of the panel 61 is the same. The length direction of the mounting hole 611 is the same as the length direction of the panel 61, and the length of the mounting hole 611 is the same as the distance between the side walls of the two end plates 63 on the opposite sides.
It should be noted that, due to the existence of the end plate 63, the corresponding water stop steel plate 5 on each main plate 6 is spaced apart from the end plate 63, as shown in fig. 3, after the position of each water stop steel plate 5 is fixed, the constructor overlaps a water stop steel plate 5 with a small area between the end portions of two adjacent water stop steel plates 5 on both sides of the main plate 6, and welds the two adjacent water stop steel plates 5 by using the overlapping water stop steel plate 5, in order not to reduce the effect exerted by the water stop steel plate 5.
Referring to fig. 1 and 5, the reinforcing steel bars 4 perpendicular to the length direction of the post-cast strip 3 in the foundation slab 2 penetrate through the panel 61 of the main board 6, two rows of insertion holes 612 are formed in the panel 61, the two rows of insertion holes 612 are arranged at intervals along the width direction of the panel 61, the mounting holes 611 are located between the two rows of insertion holes 612, and the insertion holes 612 in the same row are arranged at equal intervals along the length direction of the panel 61. Two rows of jacks 612 correspond to the reinforcing steel bars 4 on the upper side and the lower side of the bottom plate 2, and the reinforcing steel bars 4 arranged along the length direction perpendicular to the post-cast strip 3 penetrate through the panel 61 through the jacks 612.
The opening of the insertion hole 612 on the panel 61 is finished by pre-processing in a factory, and then the panel is transported to a construction site for erection. When the jacks 612 are arranged, the distance between the two rows of jacks 612 and the distance between the same row of jacks 612 are controlled according to the design distance of the steel bars 4 of the bottom plate 2, as shown in fig. 5, in the construction process of binding the steel bars 4, a constructor firstly wears the steel bars 4 at the positions of the binding post-cast strip 3 and then refers to the steel bars 4, then the steel bars 4 at the two sides of the post-cast strip 3 are lapped and bound with the bottom plate 2, the accuracy of the positions and the distances of the steel bars can be improved due to the arrangement of the jacks 612 in the binding post-cast strip 3, the measurement operation of the constructor is omitted, the steel bars 4 at the two sides of the post-cast strip 3 are lapped with the steel bars 4 bound with the post-cast strip 3, and therefore, the position reference effect provided by the jacks 612 can be extended to the binding of the steel bars 4 at the two sides of the post-cast strip 3 by the bottom plate 2. When the insertion hole 612 is formed to process the main board 6, the size of the insertion hole 612 is set to be the same as the diameter of the steel bar 4 correspondingly penetrated, so that the size of the insertion hole 612 can be used for the steel bar 4 to penetrate through, and the slurry leakage amount flowing out through the insertion hole 612 when concrete is poured is reduced.
Referring to fig. 5, the constructor lays a line on the foundation bed course 1 to determine the position of the post-cast strip 3, then splices the fixed main boards 6 along the position of the laid line, after the two rows of main boards 6 are fixed and spaced out of the position of the post-cast strip 3, the constructor starts to bind the lower layer reinforcing steel bars 4 of the bottom board 2, and binds the lower layer reinforcing steel bars 4 according to the binding sequence of the rear two sides of the sequential cast strip 3. Before the upper reinforcing steel bar 4 of the binding bottom plate 2, the installation and fixation operation of the water stop steel plate 5 needs to be completed, the upper reinforcing steel bar 4 of the binding bottom plate 2 can be bound, and the binding sequence of the upper reinforcing steel bar 4 is the same as that of the lower reinforcing steel bar 4.
Referring to fig. 4, a grouting groove 621 is formed in the side plate 62 on one side of the main plate 6, the grouting groove 621 is located on a side wall of the side plate 62 away from the panel 61, and the length direction of the grouting groove 621 is the same as the length direction of the side plate 62. The end plate 63 at one end of the main plate 6 is provided with a grouting hole 631, the length direction of the grouting hole 631 is the same as the length direction of the end plate 63, and an opening at one end of the grouting hole 631 near the grouting groove 621 is communicated with the grouting groove 621.
Referring to fig. 5, when installing mainboard 6, the curb plate 62 that offers grouting groove 621 with mainboard 6 supports on bed course 1, injects grout into grouting groove 621 through grouting hole 631, and grout is full of in grouting groove 621, treats that grout will play the effect of gap between sealed mainboard 6 and the bed course 1 after solidifying, when pouring the concrete of post-cast strip 3 both sides, can further reduce the cement paste volume of the concrete that flows into post-cast strip 3. So far, pour the sealed operation of 3 templates in post-cast strip and just accomplish, compare in prior art, this scheme need not to use the mortar shutoff to the position between template and the bed course 1 again to when pouring 3 concrete in post-cast strip, saved the clearance to the mortar, practiced thrift the preparation time before pouring 3 in a large number in post-cast strip, and then improved the efficiency of construction of post-cast strip 3.
After the grouting operation for the main board 6 is completed, the auxiliary board 7 is fixed on the top side of the main board 6, that is, the side board 62 of the main board 6 not provided with the grouting groove 621, as shown in fig. 1, the length direction of the auxiliary board 7 is the same as the length direction of the side board 62, the length of the auxiliary board 7 is the same as the sum of the length of the side board 62 and the thickness of the two end boards 63, and the width of the main board 6 is the same as the width of the connected side board 62. The subplate 7 is used for heightening the supporting height of the partial main board 6, when pouring the concrete on the two sides of the post-cast strip 3, the top surface height of the concrete can be controlled by constructors to be the same as the top surface height of the subplate 7, as shown in fig. 5, so when pouring the post-cast strip 3, the subplate 7 is firstly detached, the top surface height of the concrete of the post-cast strip 3 is controlled to be the same as the top surface height of the concrete poured in advance, the concrete of the post-cast strip 3 covers the main board 6, and is connected with the concrete poured in advance on the side board 62 of the main board 6, as shown in fig. 6, the gaps between the concrete of the post-cast strip 3 and the concrete poured in advance on the two sides of the post-cast strip 3 between the surfaces can be greatly reduced.
Referring to fig. 1, a plurality of fixing holes 622 are formed in the side plate 62 for connecting with the sub-plate 7, and the plurality of fixing holes 622 are arranged at equal intervals along the length direction of the side plate 62. Bolts 71 are inserted into the sub-plate 7, and the sub-plate 7 is fixed to the side plate 62 through the bolts 71 inserted into the fixing holes 622. The fixing holes 622 and the bolts 71 are provided so that the mounting and dismounting of the sub-plate 7 can be performed easily.
Referring to fig. 1, a plurality of protruding particles 613 are further disposed on the panel 61, the protruding particles 613 are formed by stamping the panel 61, and the protruding particles 613 protrude towards two sides of the panel 61 respectively, so that the roughness of the two side surfaces of the panel 61 is increased, and the panel 61 can be bonded with the concrete on two sides more compactly and firmly.
The implementation principle of the embodiment of the application is as follows: when erecting the template that is used for pouring post-cast strip 3, because the reinforcing bar 4 of placing perpendicularly with post-cast strip 3 can pass panel 61 on the mainboard 6, so before lower floor's reinforcing bar 4 of ligature bottom plate 2, can install at first and be used for separating two rows of mainboards 6 of 3 positions in post-cast strip, mainboard 6 is contradicted on the bed course 1 of basis, will pass mainboard 6 with 3 length direction vertically reinforcing bar 4 in post-cast strip one by one again, then can accomplish 2 lower floor's reinforcing bar 4's of bottom plate ligature afterwards. And finally, grouting into the grouting groove 621 in a matched manner, closely plugging the gap between the bottom side of the main board 6 and the cushion layer 1, and when concrete on two sides of the post-pouring belt 3 is poured, cement paste in the concrete is not easy to leak. Compared with the original formwork erecting method, the method avoids overlarge gaps between the formwork and the cushion layer 1, and mortar plugging is not needed, so that cleaning of mortar is omitted, preparation time before the post-cast strip 3 is poured in a large amount is saved, and construction efficiency of the post-cast strip 3 is improved.
The application also provides a construction method for pouring the post-cast strip 3.
A construction method for pouring a post-cast strip 3 is used for the post-cast strip 3 construction using the template, and comprises the following construction steps:
s1, before the foundation slab 2 starts to be constructed, machining the insertion holes 612 on the main slab 6 in a factory in advance, designing the size of the holes of the insertion holes 612, the positions of the insertion holes 612 on the panel 61 and the distances among the insertion holes 612 according to the drawing of the steel bars 4 of the slab 2, and transferring the machined main slab 6 and the machined auxiliary slab 7 to a construction site;
s2, paying off the foundation mat layer 1 to determine the position of the post-pouring belt 3, splicing two rows of main boards 6 along the positioned marking lines, fixing each main board 6 on the foundation mat layer 1, and embedding the positioning block 632 at the end part of one main board 6 into the positioning groove 633 at the end part of the adjacent main board 6 when the main boards 6 are spliced;
s3, after the positions of the main boards 6 are determined, binding the reinforcing steel bars 4 of the bottom board 2, firstly binding the lower-layer reinforcing steel bars 4 of the bottom board 2, firstly arranging the reinforcing steel bars 4 of the post-cast strip 3, enabling the reinforcing steel bars 4 perpendicular to the length direction of the post-cast strip 3 to penetrate through the inserting holes 612 in the two rows of main boards 6, overlapping and binding the reinforcing steel bars 4 in the same direction on the two sides of the post-cast strip 3 according to the part of the reinforcing steel bars 4, synchronously binding the reinforcing steel bars 4 parallel to the post-cast strip 3, and finishing binding the lower-layer reinforcing steel bars 4 of the bottom board 2;
after the binding of the lower layer steel bars 4 of the bottom plate 2 is finished, the water stop steel plates 5 are installed on the main plate 6, the positions of the water stop steel plates 5 are fixed, then the water stop steel plates 5 with smaller areas are respectively welded on the two sides of the main plate 6 at the interval position between every two adjacent water stop steel plates 5, and the water stop steel plates 5 on the main plates 6 on the two sides are ensured to have proper lap joint length;
after the water stop steel plate 5 is installed, the upper-layer steel bars 4 of the bottom plate 2 are bound, the arrangement sequence of the upper-layer steel bars 4 is the same as that of the lower-layer steel bars 4, the steel bars 4 positioned on the part of the post-cast strip 3 are placed firstly, the steel bars 4 perpendicular to the post-cast strip 3 penetrate through the upper-row insertion holes 612 of the panel 61, and then the upper-layer steel bars 4 on the two sides of the post-cast strip 3 are bound;
s4, after the upper layer of steel bars 4 and the lower layer of steel bars 4 of the bottom plate 2 are bound, beginning to inject cement slurry into the grouting groove 621 of each main plate 6, communicating the pipe orifice for grouting with the grouting hole 631 in the main plate 6, and injecting the slurry into the grouting groove 621 to wait for the cement slurry in the grouting groove 621 to solidify;
s5, after grouting operation is finished, mounting the auxiliary plate 7 on the top side of each main plate 6, penetrating the bolts 71 through the auxiliary plates 7, screwing the bolts into the fixing holes 622 on the side plates 62 on the top sides of the main plates 6, and simultaneously ensuring that the end parts of two adjacent auxiliary plates 7 are tightly spliced;
s6, after cement slurry in the grouting grooves 621 is solidified, concrete of the bottom plate 2 located on the two sides of the post-cast strip 3 begins to be poured, a proper distance is formed between the vibrating rod and the main plate 6 in the pouring process, the main plate 6 is prevented from being subjected to large vibration, and finally the top surfaces of the concrete on the two sides of the post-cast strip 3 are controlled to be flush with the top surface of the auxiliary plate 7;
s7, after concrete on two sides of the post-cast strip 3 is solidified and formed, firstly removing the auxiliary plate 7 on each main plate 6, then beginning to pour the concrete of the post-cast strip 3, wherein the concrete of the post-cast strip 3 adopts micro-expansive concrete which is higher than the concrete poured on the two sides in grade, and the top surface of the concrete of the post-cast strip 3 is controlled to be flush with the top surfaces of the concrete poured on the two sides.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (7)
1. The utility model provides a basis post-cast strip template which characterized in that: the water-proof structure comprises a main board (6), wherein a mounting hole (611) for a water-proof steel plate (5) to pass through is formed in the main board (6), two rows of insertion holes (612) are formed in two sides of the mounting hole (611) on the main board (6) respectively, the insertion holes (612) in the same row are arranged in a plurality and are distributed at intervals along the length direction of the main board (6), and the two rows of insertion holes (612) are used for reinforcing steel bars (4) on the upper layer and the lower layer of a foundation bottom plate (2) to pass through respectively; a grouting groove (621) is formed in the side wall of one side of the main board (6), and a grouting hole (631) communicated with the grouting groove (621) is formed in the other side of the main board (6);
mainboard (6) include panel (61), establish curb plate (62) in panel (61) both sides and establish end plate (63) at panel (61) both ends, mounting hole (611) and jack (612) are seted up on panel (61), and grout groove (621) are seted up on one of them side curb plate (62) of mainboard (6), and grout hole (631) are seted up on one of them end plate (63) of mainboard (6).
2. The basic post-cast strip template of claim 1, wherein: the grouting device is characterized by further comprising a secondary plate (7) arranged on a side plate (62) of the main plate (6) far away from the grouting groove (621), and the secondary plate (7) is located on one side, far away from the panel (61), of the side plate (62).
3. The basic post-cast strip template of claim 2, wherein: a plurality of fixing holes (622) are formed in the side plate (62) connected with the auxiliary plate (7), and the auxiliary plate (7) is connected with the side plate (62) through bolts (71) and mounting holes (611) in a threaded mode.
4. The basic post-cast strip template of claim 1, wherein: locating piece (632) have been seted up on one end plate (63) of mainboard (6), constant head tank (633) have been seted up on other end plate (63) of mainboard (6), and locating piece (632) between adjacent mainboard (6) are pegged graft with constant head tank (633) and are cooperated.
5. The basic post-cast strip template of claim 4, wherein: the cross section width of locating piece (632) reduces along the direction of keeping away from adjacent end plate (63) gradually, and the notch of constant head tank (633) is the flaring setting of pegging graft complex with locating piece (632).
6. The basic post-cast strip template of claim 1, wherein: the panel (61) is provided with a plurality of convex particles (613) which are respectively convex towards the two sides of the panel (61).
7. A construction method for pouring a post-cast strip is characterized in that the foundation post-cast strip template of any one of claims 1 to 6 is adopted, and the construction steps are as follows:
s1, processing the main board (6), and arranging insertion holes (612) on the main board (6) according to the positions and the intervals of the steel bars (4) in the constructed foundation slab (2);
s2, installing a main board (6), paying off the basic cushion layer (1) to determine the position of the post-cast strip (3), and fixing the main board (6) along the paying off position;
s3, binding the steel bars (4) of the bottom plate (2), firstly binding the steel bars (4) of the lower layer of the bottom plate (2), then installing the water stop steel plate (5) on the main plate (6), and then binding the steel bars (4) of the upper layer of the bottom plate (2);
s4, grouting into the grouting holes (631) of the main boards (6) to enable the grouting grooves (621) of each main board (6) to be filled with cement slurry;
s5, after the cement paste is solidified and formed, pouring concrete on the two sides of the post-pouring belt (3) on the bottom plate (2);
and S6, after the concrete on the two sides of the post-cast strip (3) is solidified and formed, the concrete of the post-cast strip (3) is poured.
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| CN202110714759.6A CN113463911B (en) | 2021-06-25 | 2021-06-25 | Foundation post-cast strip template and construction method for casting post-cast strip |
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| CN202110714759.6A CN113463911B (en) | 2021-06-25 | 2021-06-25 | Foundation post-cast strip template and construction method for casting post-cast strip |
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| CN113463911B true CN113463911B (en) | 2022-06-10 |
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| JP2002356871A (en) * | 2001-05-29 | 2002-12-13 | Electric Power Dev Co Ltd | Impervious construction |
| CN101832026B (en) * | 2010-04-07 | 2011-07-13 | 南通建工集团股份有限公司 | Construction method of sole plate post-poured strip form bracing system |
| CN204418229U (en) * | 2014-12-26 | 2015-06-24 | 中誉远发国际建设集团有限公司 | Poured band of outer wall of basement concrete draw-in groove |
| KR102085143B1 (en) * | 2018-11-14 | 2020-03-05 | 전종환 | Precast concrete double wall type concrete structure and method for constructing this same |
| CN213014374U (en) * | 2020-07-04 | 2021-04-20 | 四川航天建筑工程有限公司 | Bottom plate post-cast strip structure |
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