CN113417213A - Integral truss type pull-rod-free turnover formwork system and turnover construction method - Google Patents
Integral truss type pull-rod-free turnover formwork system and turnover construction method Download PDFInfo
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- CN113417213A CN113417213A CN202110719260.4A CN202110719260A CN113417213A CN 113417213 A CN113417213 A CN 113417213A CN 202110719260 A CN202110719260 A CN 202110719260A CN 113417213 A CN113417213 A CN 113417213A
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/02—Piers; Abutments ; Protecting same against drifting ice
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D2101/00—Material constitution of bridges
- E01D2101/20—Concrete, stone or stone-like material
- E01D2101/24—Concrete
- E01D2101/26—Concrete reinforced
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Abstract
The embodiment of the invention provides an integral truss type pull-rod-free turnover formwork system and a turnover construction method. The system comprises: first lifting module, the second lifting module, truss and template, first lifting module and truss fixed connection, be used for promoting the truss, the second lifting module is connected with the template, be used for promoting the template, the template includes interior template and exterior sheathing, interior template and exterior sheathing are rectangle hollow structure, be used for pouring of concrete between exterior sheathing and interior template, the truss includes interior truss and outer truss, interior truss is used for providing outside holding power for the interior template, the outer truss is used for providing inside holding power for the exterior sheathing. The efficiency of high mound thin wall mound construction can be used for improving.
Description
[ technical field ] A method for producing a semiconductor device
The invention relates to the field of high pier thin-wall pier construction, in particular to an integral truss type pull-rod-free turnover formwork system and a turnover formwork construction method.
[ background of the invention ]
The common construction method of the pier body of the high pier of the bridge is creeping formwork and rollover, the template fixation is a very important process, the common construction method is fixing by using a pull rod and then pouring in concrete, the creeping formwork construction assembly time is long, and the cost is high; the turnover construction period is long, the construction process is complicated, and the influence of weather is large.
The construction of the small high pier has high requirement on the construction period and provides a faster requirement on the installation speed of the template. The conventional rollover construction method has the problems of more tie rod holes and untimely treatment, and causes the phenomena of corrosion of reinforcing steel bars and poor appearance, so the design of the rollover improved construction method is particularly important.
[ summary of the invention ]
In view of this, the embodiment of the invention provides an integral truss type tie-rod-free rollover system and a rollover construction method, which are used for improving the efficiency of high pier thin-wall pier construction.
In one aspect, an embodiment of the present invention provides an integral truss type tie-rod-free rollover system, which includes: the device comprises a first lifting module, a second lifting module, a truss and a template;
the first lifting module is fixedly connected with the truss and used for lifting the truss;
the second lifting module is connected with the template and used for lifting the template;
the formwork comprises an inner formwork and an outer formwork, the inner formwork and the outer formwork are both rectangular hollow structures, and concrete is poured between the outer formwork and the inner formwork;
the truss comprises an inner truss and an outer truss, wherein the inner truss is used for providing outward supporting force for the inner formwork, and the outer truss is used for providing inward supporting force for the outer formwork.
Optionally, the first lifting module comprises a lifting frame, a jack and a support rod;
the lifting frame is fixedly connected with the truss, a plurality of jacks are fixed on the lifting frame, and the jack through holes penetrate through the supporting rods.
Optionally, the support bar is disposed between the inner and outer formworks, and an end of the support bar remote from the first lifting module is supported on the ground.
Optionally, the second lifting module is connected to the lifting frame.
Optionally, the second lifting module comprises an electric hoist, and the template is connected below the electric hoist.
Optionally, the truss comprises an inner truss and an outer truss;
the outer trusses comprise two transverse outer trusses and two vertical outer trusses, and the four outer trusses are connected end to form a rectangular structure;
a plurality of support rods are arranged on the inner sides of the outer trusses, and outer templates are arranged at the other ends of the support rods of the outer trusses, which are far away from one ends of the outer trusses;
a plurality of support rods are arranged in the circumferential direction of the inner truss, and an inner template is arranged at one end, far away from the inner truss, of each support rod of the inner truss.
Optionally, a construction operation platform is fixed below the truss.
Optionally, the construction operation platform is two-layer, and the outside of the two-layer construction operation platform is provided with guardrails.
On the other hand, the embodiment of the invention provides an integral truss type tie-rod-free turnover construction method, which uses an integral truss type tie-rod-free turnover system for construction, and comprises the following steps:
pouring bottom concrete, and installing a second section of steel bar and a template after the bottom concrete reaches a preset strength;
fixing the template of the bottom section with the template of the second section;
after the template of the bottom section and the template of the second section are fixed, the position of the truss is adjusted;
after the truss reaches a preset position, adjusting the stay bars on the truss to fix the template;
pouring the second section;
after the second section of concrete reaches the preset strength, removing the first section of template and installing the next section of template;
and when the pouring reaches the preset position, stopping construction.
The embodiment of the invention provides an integral truss type pull-rod-free turnover formwork system and a turnover construction method, wherein the system comprises: first lifting module, the second lifting module, truss and template, first lifting module and truss fixed connection, be used for promoting the truss, the second lifting module is connected with the template, be used for promoting the template, the template includes interior template and exterior sheathing, interior template and exterior sheathing are rectangle hollow structure, be used for pouring of concrete between exterior sheathing and interior template, the truss includes interior truss and outer truss, interior truss is used for providing outside holding power for the interior template, the outer truss is used for providing inside holding power for the exterior sheathing. The efficiency of high mound thin wall mound construction can be used for improving.
[ description of the drawings ]
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive labor.
Fig. 1 is a schematic overall structure diagram of an integrated truss type tie-rod-free rollover system according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a truss of an integral truss type tie-rod-free rollover system according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a second lifting module of the truss type tie-rod-free rollover system according to an embodiment of the present invention;
fig. 4 is a schematic flow chart of an integral truss type tie-rod-free rollover construction method according to an embodiment of the present invention.
[ detailed description ] embodiments
For better understanding of the technical solutions of the present invention, the following detailed descriptions of the embodiments of the present invention are provided with reference to the accompanying drawings.
It should be understood that the described embodiments are only some embodiments of the invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The terminology used in the embodiments of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used in the examples of the present invention and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.
It should be understood that the term "and/or" as used herein is merely one type of associative relationship that describes an associated object, meaning that three types of relationships may exist, e.g., A and/or B, may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.
The common construction method of the pier body of the high pier of the bridge is creeping formwork and rollover, the template fixation is a very important process, the common construction method is fixing by using a pull rod and then pouring in concrete, the creeping formwork construction assembly time is long, and the cost is high; the turnover construction period is long, the construction process is complicated, and the influence of weather is large.
The construction of the small high pier has high requirement on the construction period and provides a faster requirement on the installation speed of the template. The conventional rollover construction method has the problems of more tie rod holes and untimely treatment, and causes the phenomena of corrosion of reinforcing steel bars and poor appearance, so the design of the rollover improved construction method is particularly important.
In order to solve the technical problem in the prior art, the embodiment of the invention provides an integral truss type tie-rod-free turnover formwork system.
The integral truss type tie-rod-free rollover system provided by the embodiment of the invention is firstly described below.
Fig. 1 is a schematic view illustrating an integral truss type tie-rod-free rollover system according to an embodiment of the present invention, as shown in fig. 1, the system includes: a first lifting module 1, a second lifting module 4, a truss 2 and a formwork 3;
the first lifting module 1 is fixedly connected with the truss 2 and used for lifting the truss 2;
the second lifting module 4 is connected with the template 3 and used for lifting the template 3;
the formwork 3 comprises an inner formwork 31 and an outer formwork 32, the inner formwork 31 and the outer formwork 32 are both rectangular hollow structures, and concrete is poured between the outer formwork 32 and the inner formwork 31;
fig. 2 is a schematic diagram illustrating a truss structure of an integral truss type tie-rod-free rollover system according to an embodiment of the present invention, as shown in fig. 2: truss 2 includes inner truss 22 and outer truss 21, inner truss 22 is used for providing outward supporting force for inner formwork 31, and outer truss 21 is used for providing inward supporting force for outer formwork 32.
In some embodiments, the external template 32 is an integral steel template, the vertical ribs and the back edges are all formed by assembly welding, and the multilayer back frame and the template 3 are connected through bolts to form a space truss, so that the space rigidity of the turnover template is ensured; the inner template 31 is a wood template, two adjacent templates 3 are connected by a core belt and fixed by a core belt pin, so that the integrity of the templates is ensured.
In some embodiments, the inner and outer formworks 31 and 32 are cast between each other, and the inner and outer shoring forces of the truss 2 are balanced by the struts 23 on the inner and outer trusses 22 and 21 during casting.
The first lifting module comprises a lifting frame 13, a jack 12 and a supporting rod 11;
the lifting frame 13 is fixedly connected with the truss 2, a plurality of jacks 12 are fixed on the lifting frame 12, and the jacks 12 penetrate through the supporting rods 11.
In some embodiments, the beam of the lifting frame 13 is made of double-spliced [20a channel steel back-to-back, the support rod 11 passes through the middle of the two channel steels of the beam, the hanging rod is made of double-spliced [20a channel steel, the inclined strut is made of L100 × 10 angle steel and is 3m high, the lifting frame 13 is provided with 6 hanging rods in total, and the hanging rods are welded with the main truss of the truss 2 into a whole.
In some embodiments, the support rods 11 are buried in the ground at the bottom and then gradually poured into the high piers. A total of 6 support rods 11 are provided. The support rod 11 is selected
The length of the seamless steel tube used as the support bar 11 is generally 6m, and when the jack 12 climbs to a distance less than 350mm from the top end of the support bar 11, the length should be increased in time. The support rod 11 is lengthened by welding, and is polished to be smooth by a grinding machine after welding, and the flatness of the support rod is consistent with that of the original steel pipe surface.
In some embodiments, jack 12 is an QYD-100 hydraulic jack.
The support bar 11 is disposed between the inner formwork 31 and the outer formwork 32, and one end of the support bar 11 remote from the first lifting module 1 is supported on the ground.
Fig. 3 is a schematic structural diagram illustrating a second lifting module of the integral truss type tie-rod-free rollover according to an embodiment of the invention. As shown in fig. 3, the second hoisting module 4 is connected to a hoisting frame 13.
The second lifting module 4 comprises an electric hoist 41, below which the formwork 3 is connected.
The truss 2 comprises an inner truss 22 and an outer truss 21;
the outer trusses 21 comprise two transverse outer trusses 21 and two vertical outer trusses 21, and the four outer trusses 21 are connected end to form a rectangular structure;
a plurality of support rods 23 are arranged on the inner sides of the outer trusses 21, and outer formworks 32 are arranged at the other ends of the support rods 23 of the outer trusses 21, which are far away from one ends of the outer trusses 21;
the inner truss 22 is circumferentially provided with a plurality of support rods 23, and one end of each support rod 23 of the inner truss 22, which is far away from the inner truss 22, is provided with an inner formwork 31.
And a construction operation platform 5 is fixed below the truss.
The construction operation platform is two-layer, and 5 outsides of two-layer construction operation platform all are equipped with the guardrail.
The embodiment of the invention provides an integral truss type pull-rod-free turnover formwork system and a turnover construction method, wherein the system comprises: first lifting module, the second lifting module, truss and template, first lifting module and truss fixed connection, be used for promoting the truss, the second lifting module is connected with the template, be used for promoting the template, the template includes interior template and exterior sheathing, interior template and exterior sheathing are rectangle hollow structure, be used for pouring of concrete between exterior sheathing and interior template, the truss includes interior truss and outer truss, interior truss is used for providing outside holding power for the interior template, the outer truss is used for providing inside holding power for the exterior sheathing. The efficiency of high mound thin wall mound construction can be used for improving.
Fig. 4 is a schematic flow chart illustrating an integral truss type tie-rod-free rollover construction method provided by an embodiment of the present invention, where the integral truss type tie-rod-free rollover system is used for construction, and the method includes:
pouring bottom concrete, and installing a second section of steel bar and a template after the bottom concrete reaches a preset strength;
fixing the template of the bottom section with the template of the second section;
after the template of the bottom section and the template of the second section are fixed, the position of the truss is adjusted;
after the truss reaches a preset position, adjusting the stay bars on the truss to fix the template;
pouring the second section;
after the second section of concrete reaches the preset strength, removing the first section of template and installing the next section of template;
and when the pouring reaches the preset position, stopping construction.
In some embodiments, the bottom concrete is poured, and after the concrete reaches the specified strength, the reinforcing steel bars and the templates of the second pier body can be installed. The second section of template is installed on the first section of template, and the outer form adopts the bolt to link together upper and lower template, fixes on the bottom section concrete with the pull rod of predetermineeing in the beginning, and the inner formword is installed on oblique chamfer, adjustment template to accurate position, and when pouring two sections pier shaft concretes in bottom, the mode of drawing cable wind rope is taken in the correction of template, starts from the third section, adopts and rectifies at lower floor section concrete top surface pre-buried buckle. And (4) installing and fastening the inner and outer support rods, and constructing the rest of work with the first section of pier body.
And after the second section of concrete reaches the specified strength, removing the first section of template. When the template is disassembled, the outer support rod is firstly screwed, then the connecting bolt of the template is disassembled, and the template is lifted upwards. When working aloft, the template is hung on the template by adopting a chain block in advance and is tensioned to prevent the template from falling off, and after the outer mold is completely separated from the concrete, the outer mold is slightly hung by using an electric hoist to detach the chain block; and (3) firstly unscrewing the inner support rod during inner die dismantling, then loosening the core belt pin and the core belt, hoisting the template by using an electric hoist, and hoisting the template to a template trimming part for trimming for later use. And after the steel bars of the third section are installed, hoisting the template by using the electric hoist for installation, wherein the installation method is the same as that before, and the subsequent construction is carried out circularly.
In some embodiments, the truss is installed after the second section of formwork is installed, the truss climbs along the supporting rods through the jacks, the jacks jack up for 4cm in a single time, and the supporting rods and the steel reinforcement framework are welded into a whole after the truss system climbs for 40 cm.
The embodiment of the invention provides an integral truss type pull-rod-free turnover formwork system and a turnover construction method, wherein the system comprises: first lifting module, the second lifting module, truss and template, first lifting module and truss fixed connection, be used for promoting the truss, the second lifting module is connected with the template, be used for promoting the template, the template includes interior template and exterior sheathing, interior template and exterior sheathing are rectangle hollow structure, be used for pouring of concrete between exterior sheathing and interior template, the truss includes interior truss and outer truss, interior truss is used for providing outside holding power for the interior template, the outer truss is used for providing inside holding power for the exterior sheathing. The efficiency of high mound thin wall mound construction can be used for improving.
It should also be noted that the exemplary embodiments mentioned in this patent describe some methods or systems based on a series of steps or devices. However, the present invention is not limited to the order of the above-described steps, that is, the steps may be performed in the order mentioned in the embodiments, may be performed in an order different from the order in the embodiments, or may be performed simultaneously.
Aspects of the present disclosure are described above with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems) and computer program products according to embodiments of the disclosure. It will be understood that each block of the flowchart illustrations and/or block diagrams, and combinations of blocks in the flowchart illustrations and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, enable the implementation of the functions/acts specified in the flowchart and/or block diagram block or blocks. Such a processor may be, but is not limited to, a general purpose processor, a special purpose processor, an application specific processor, or a field programmable logic circuit. It will also be understood that each block of the block diagrams and/or flowchart illustration, and combinations of blocks in the block diagrams and/or flowchart illustration, can be implemented by special purpose hardware for performing the specified functions or acts, or combinations of special purpose hardware and computer instructions.
The present invention is not limited to the above preferred embodiments, and any modifications, equivalent substitutions, improvements, etc. within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (9)
1. An integral truss tie-rod-less rollover system, comprising: the device comprises a first lifting module, a second lifting module, a truss and a template;
the first lifting module is fixedly connected with the truss and used for lifting the truss;
the second lifting module is connected with the template and used for lifting the template;
the formwork comprises an inner formwork and an outer formwork, the inner formwork and the outer formwork are both rectangular hollow structures, and concrete is poured between the outer formwork and the inner formwork;
the truss comprises an inner truss and an outer truss, the inner truss is used for providing outward supporting force for the inner formwork, and the outer truss is used for providing inward supporting force for the outer formwork.
2. The system of claim 1, wherein the first lifting module comprises a lifting frame, a jack, and a support bar;
the lifting frame is fixedly connected with the truss, a plurality of jacks are fixed on the lifting frame, and the jack through holes penetrate through the supporting rods.
3. The system of claim 2, wherein the support bar is disposed between the inner and outer formworks, an end of the support bar remote from the first lifting module being supported on the ground.
4. The system of claim 1 or 2, wherein the second lifting module is connected to the lifting frame.
5. The system of claim 4, wherein the second lifting module comprises a motorized hoist having a template attached below the motorized hoist.
6. The system of claim 1, wherein the truss comprises an inner truss and an outer truss;
the outer trusses comprise two transverse outer trusses and two vertical outer trusses, and the four outer trusses are connected end to form a rectangular structure;
a plurality of support rods are arranged on the inner sides of the outer trusses, and outer templates are arranged at the other ends of the support rods of the outer trusses, which are far away from one ends of the outer trusses;
the inner truss is characterized in that a plurality of support rods are circumferentially arranged on the inner truss, and an inner template is arranged at one end, far away from the inner truss, of each support rod of the inner truss.
7. The system of claim 6, wherein a construction work platform is secured below the truss.
8. The system of claim 7, wherein the construction operation platform is two-layered, and a guardrail is arranged on the outer side of each two-layered construction operation platform.
9. An integral truss type tie-rod-free turnover construction method is characterized in that construction is carried out by using the integral truss type tie-rod-free turnover system, and the method comprises the following steps:
pouring bottom concrete, and installing a second section of steel bar and a template after the bottom concrete reaches a preset strength;
fixing the template of the bottom section and the template of the second section;
after the bottom section template and the second section template are fixed, adjusting the position of the truss;
after the truss reaches a preset position, adjusting the support rods on the truss to fix the template;
pouring the second section;
after the second section of concrete reaches the preset strength, removing the first section of template and installing the next section of template;
and when the pouring reaches a preset position, stopping construction.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110719260.4A CN113417213A (en) | 2021-06-28 | 2021-06-28 | Integral truss type pull-rod-free turnover formwork system and turnover construction method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110719260.4A CN113417213A (en) | 2021-06-28 | 2021-06-28 | Integral truss type pull-rod-free turnover formwork system and turnover construction method |
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| CN202110719260.4A Pending CN113417213A (en) | 2021-06-28 | 2021-06-28 | Integral truss type pull-rod-free turnover formwork system and turnover construction method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115584687A (en) * | 2022-10-17 | 2023-01-10 | 安徽省交通建设股份有限公司 | Assembly type truss template for crescent-shaped tower column and construction method thereof |
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| JPH07259333A (en) * | 1994-03-18 | 1995-10-09 | Ohbayashi Corp | Construction method of concrete structure |
| JP2013002238A (en) * | 2011-06-21 | 2013-01-07 | Sumitomo Mitsui Construction Co Ltd | Method of constructing bridge pier |
| CN106087772A (en) * | 2016-08-24 | 2016-11-09 | 中交三公局第三工程有限公司 | Sliding varus constructing device and method outside Bridge High-pier |
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| CN115584687A (en) * | 2022-10-17 | 2023-01-10 | 安徽省交通建设股份有限公司 | Assembly type truss template for crescent-shaped tower column and construction method thereof |
| CN115584687B (en) * | 2022-10-17 | 2023-08-29 | 安徽省交通建设股份有限公司 | Assembled truss template for crescent-shaped tower column and construction method thereof |
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