CN111236087A - Sliding type high pier tie beam formwork support system and construction method - Google Patents

Sliding type high pier tie beam formwork support system and construction method Download PDF

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Publication number
CN111236087A
CN111236087A CN202010209847.6A CN202010209847A CN111236087A CN 111236087 A CN111236087 A CN 111236087A CN 202010209847 A CN202010209847 A CN 202010209847A CN 111236087 A CN111236087 A CN 111236087A
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CN
China
Prior art keywords
support
pier
tie
prefabricated support
prefabricated
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202010209847.6A
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Chinese (zh)
Inventor
胡浪
刘明俊
刘骁凡
安宁
吴航
熊训飞
陈磊
冯郑承
卢青山
刘汉鑫
柴进
王品
陈建
陈贵寿
常海宁
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Guizhou Highway Engineering Group Co ltd
Original Assignee
Guizhou Highway Engineering Group Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Guizhou Highway Engineering Group Co ltd filed Critical Guizhou Highway Engineering Group Co ltd
Priority to CN202010209847.6A priority Critical patent/CN111236087A/en
Publication of CN111236087A publication Critical patent/CN111236087A/en
Pending legal-status Critical Current

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Classifications

    • EFIXED CONSTRUCTIONS
    • E01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01DCONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
    • E01D21/00Methods or apparatus specially adapted for erecting or assembling bridges
    • EFIXED CONSTRUCTIONS
    • E01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01DCONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
    • E01D19/00Structural or constructional details of bridges
    • E01D19/02Piers; Abutments ; Protecting same against drifting ice
    • EFIXED CONSTRUCTIONS
    • E01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01DCONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
    • E01D2101/00Material constitution of bridges
    • E01D2101/20Concrete, stone or stone-like material
    • E01D2101/24Concrete
    • E01D2101/26Concrete reinforced
    • EFIXED CONSTRUCTIONS
    • E01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01DCONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
    • E01D2101/00Material constitution of bridges
    • E01D2101/30Metal
    • EFIXED CONSTRUCTIONS
    • E01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01DCONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
    • E01D2101/00Material constitution of bridges
    • E01D2101/40Plastics

Abstract

The invention discloses a sliding-lifting type high pier tie beam formwork support system and a construction method thereof. The invention has the characteristics of quick construction operation, shortened construction period, high machine tool utilization rate, small risk coefficient and small main pier damage.

Description

Sliding type high pier tie beam formwork support system and construction method
Technical Field
The invention relates to a high pier tie beam formwork support system and a construction method, in particular to a sliding type high pier tie beam formwork support system and a construction method.
Background
When the high pier tie beam is constructed, because the pier stud is too high, the engineering quantity of the floor stand is too large, the danger coefficient is too high, and the construction cost control is not facilitated. Therefore, the corbels are usually embedded in the main piers for construction, but because the number of embedded parts is large, and the embedded steel boxes can cut off the main reinforcements of the piers, the construction potential safety hazard is large.
In addition, in the prior art, after corbels are embedded in the pier stud, the common construction is high-altitude operation construction by means of tower cranes and manual cooperation, the construction operation is slow, the utilization rate of machines is low, the construction period is long, the construction cannot be synchronous with the pier stud, the high-altitude operation danger coefficient is high, safety cannot be guaranteed, and the corbel embedded parts are arranged, block main ribs of the pier stud and damage the main ribs of the pier stud to a certain extent.
Disclosure of Invention
The invention aims to provide a sliding type high pier tie beam formwork support system and a construction method. The construction method has the characteristics of high construction operation speed, capability of synchronous construction with the pier stud, high machine tool utilization rate, high construction speed, small risk coefficient and small main pier damage.
The technical scheme of the invention is as follows: a sliding-lifting type high-pier tie beam formwork support system comprises prefabricated supports arranged on the opposite inner sides of a main pier, and the prefabricated supports are connected with a winch hoist through sliding-lifting ropes.
According to the sliding-lifting type high-pier tie beam formwork support system, the number of the hoisting hoists is 4, the hoisting hoists are respectively arranged at 4 corners of the main pier bearing platform, the bottom of the inner side of the main pier is provided with the first fixed pulley, the top of the main pier is provided with the second fixed pulley, one end of the sliding-lifting rope is fixedly connected onto the hoisting hoists, and the other end of the sliding-lifting rope is fixedly connected onto 4 corners of the prefabricated support after the sliding-lifting rope sequentially bypasses the first fixed pulley and the second fixed pulley.
In the sliding-lifting type high-pier tie beam formwork support system, 1 construction hanging basket is respectively arranged on one side, close to the main pier, of the lower end of the prefabricated support.
According to the sliding-lifting type high-pier tie beam formwork support system, the preset position of the upper end of the main pier on the inner side is provided with the pre-buried hole, the prefabricated support is lifted to the preset position, the steel bar is arranged in the pre-buried hole, the lower supporting beam is arranged above the steel bar, the unloading sand box is arranged above the lower supporting beam, the upper supporting beam is arranged above the unloading sand box, and the upper supporting beam is fixedly connected below the prefabricated support.
In the template bracket system of the sliding-lifting type high pier tie beam, the upper support beam is connected with a sliding-lifting rope; and a support rod is arranged between the upper support beams on the two sides below the prefabricated support.
According to the sliding-lifting type high-pier tie beam formwork support system, the universal wheels are arranged on the two sides of the closer main pier of the prefabricated support.
According to the sliding-lifting type high-pier tie beam formwork support system, the prefabricated support is provided with the sleeve perpendicular to the vertical face of the main pier, the telescopic rod is arranged in the sleeve, the universal wheel is connected to one end, located on the outer side of the sleeve, of the telescopic rod, and the spring is arranged between the bottom of the sleeve and the end of the telescopic rod.
A construction method of the sliding-lifting type high-pier tie beam formwork support system comprises the following steps:
when the main pier is constructed below the position of the tie beam, PVC pipes are embedded on the inner sides of the main pier opposite to each other to form a pre-embedded hole, after the main pier is constructed above the position of the tie beam, PVC pipes and steel bars are embedded on the inner sides of the main pier opposite to each other above the tie beam, and a second fixed pulley is fixedly installed;
meanwhile, a first fixed pulley is arranged at the bottom of the opposite inner side of the main pier, and a hoisting hoist is arranged at 4 corners of a main pier bearing platform;
meanwhile, a prefabricated support is assembled on a main pier bearing platform on the inner side of the main pier, one end of a sliding rope is fixed on a hoisting machine, and the other end of the sliding rope is fixedly connected to 4 corners of the prefabricated support after sequentially passing around a first fixed pulley and a second fixed pulley;
after the prefabricated support is lifted to the height capable of installing the construction hanging basket, the construction hanging basket is installed at the lower end of the prefabricated support, and then the prefabricated support is continuously lifted to the tie beam pouring position;
after the prefabricated support is lifted to be slightly higher than the construction position, workers enter the construction hanging basket, insert steel rods into the pre-buried holes, lay a lower supporting beam on the steel rods, install an unloading sand box on the lower supporting beam, and then lower the prefabricated support to be pressed on the unloading sand box;
and after the prefabricated support is installed in place, subsequent template installation and pouring construction can be carried out.
In order to enable the bottom of the prefabricated support to be in better contact with the unloading sand boxes, the two ends of the bottom of the prefabricated support are provided with the upper supporting beams parallel to the lower supporting beam, the two ends of each upper supporting beam exceed the side faces of the prefabricated support, the sliding lifting ropes are fixedly connected to the exceeding sections of the upper supporting beams, and the upper supporting beams on the two sides are fixedly connected through the welding supporting rods.
The invention has the advantages of
The tie beam bracket system and the template for pouring can be prefabricated and assembled on the ground and then integrally hoisted at one time, so that the construction operation is fast; and the high altitude is changed into the ground, so that the safety risk in the construction process is reduced. In the aspect of construction speed, 20 working days are reduced to 6 working days from the conventional construction of one tie beam bracket system and formwork. In addition, the required construction machine can be recycled, the processing and the manufacturing are simple, and the purposes of cost reduction and efficiency improvement are achieved.
The system has no other embedded parts except the embedded PVC pipe for the steel bar in the whole construction, is convenient for construction, and more importantly, avoids the blocking of the main reinforcement of the pier column and greatly reduces the damage to the main pier.
The system can carry out synchronous construction in the construction process of the main pier, and when the height of the main pier reaches a certain height, the system can be lifted and the tie beam can be synchronously poured; compared with the traditional method that the formwork support installation and the subsequent pouring construction are carried out at the set position after the main pier is constructed to the safe height, the system of the invention can accelerate the construction progress of the whole bridge.
In addition, the universal wheels are arranged on the side faces of the prefabricated support, so that the prefabricated support and the template are prevented from swinging due to wind power and colliding and rubbing with the vertical face of the main pier in the lifting process, the installation risk coefficient is reduced, the surface of the vertical face of the main pier is prevented from being scratched, and the overall attractiveness of the main pier is ensured.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present invention;
FIG. 2 is a schematic structural view of the system of the present invention after it has been installed in place;
fig. 3 is a partial schematic view of a prefabricated stent.
Description of reference numerals: 1-prefabricated support, 2-sliding rope, 3-hoisting elevator, 4-main pier bearing platform, 5-first fixed pulley, 6-main pier, 7-second fixed pulley, 8-construction hanging basket, 9-pre-buried hole, 10-steel bar, 11-lower supporting beam, 12-unloading sand box, 13-upper supporting beam, 14-supporting rod, 15-universal wheel, 16-sleeve, 17-telescopic rod and 18-spring.
Detailed Description
The present invention is further illustrated by the following examples, which are not to be construed as limiting the invention.
Examples of the invention
A sliding-lifting type high pier tie beam formwork support system is shown in figures 1-3 and comprises a prefabricated support 1 arranged on the inner side of a main pier 6, the whole prefabricated support 1 is assembled by adopting 130a I-steel and C10 channel steel, a phi 10 reinforcing mesh is manufactured at the top after the prefabricated support 1 is assembled, a bottom formwork is manufactured above the prefabricated support by using 10cm square timber and a 1.8cm formwork, and a sliding-lifting rope 2 formed by steel wire ropes of the prefabricated support 1 is connected with a hoisting elevator 3.
Preferably, the hoisting hoister 3 is provided with 4 hoisting ropes which are respectively arranged at 4 corners of the main pier bearing platform 4, the bottom of the inner side of the main pier 6 is provided with a first fixed pulley 5, the top of the main pier is provided with a second fixed pulley 7, one end of the sliding hoisting rope 2 is fixedly connected to the hoisting hoister 3, the other end of the sliding hoisting rope sequentially rounds the first fixed pulley 5 and the second fixed pulley 7 and then is fixedly connected to the 4 corners of the prefabricated support 1, and the hoisting hoister 3 is arranged on the main pier bearing platform 4, so that the hoisting rope is not required to be hoisted to the main pier 6, the safety risk is reduced, the installation is facilitated, and the vertical sliding hoisting of the prefabricated support 1 can be realized through the steering of the 2 fixed pulleys.
Preferably, one side of the lower end of the prefabricated support 1 close to the main pier 6 is respectively provided with 1 construction hanging basket 8, and the construction hanging baskets 8 are used for construction below the prefabricated support 1.
Preferably, a pre-buried hole 9 is formed in a set position on the inner side of the upper end of the main pier 6, a PVC pipe is arranged in the pre-buried hole 9, after the prefabricated support 1 is lifted to the set position, a 110mm steel bar 10 is arranged in the pre-buried hole 9, a lower support beam 11 is arranged above the steel bar 10, the lower support beam 11 is made of 120a I-steel, in order to improve strength, 1cm ribs are respectively added on two sides of the 120a I-steel, an unloading sand box 12 is arranged above the lower support beam 11, an upper support beam 13 is arranged above the unloading sand box 12, the upper support beam 13 is fixedly connected below the prefabricated support 1, and after the prefabricated support 1 is installed, the support of the support is completed through the combined action of the support device and the sliding lifting rope 2.
Preferably, the upper support beam 13 is connected to the hoisting line 2; supporting rods 14 are arranged between the upper supporting beams 13 on the two sides below the prefabricated support 1, so that the upper supporting beams 13 on the two sides form a whole, and the structural strength is higher.
Preferably, the prefabricated support 1 is provided with universal wheels 15 on both sides close to the main pier 6, and when the prefabricated support is lifted, the universal wheels 15 are in contact with the vertical surface of the main pier 6, so that scraping collision is avoided.
Preferably, a sleeve 16 perpendicular to the vertical surface of the main pier 6 is arranged on the prefabricated support 1, an expansion link 17 is arranged in the sleeve 16, the universal wheel 15 is connected to one end, located on the outer side of the sleeve 16, of the expansion link 17, a spring 18 is arranged between the bottom in the sleeve 16 and the end portion of the expansion link 17, and when the vertical surface is uneven, the universal wheel 15 can be compressed transversely to avoid influencing normal sliding and lifting.
The construction method of the sliding-lifting type high-pier tie beam formwork support system comprises the following steps:
1. when the main pier 6 is constructed below the position of the tie beam, PVC pipes are embedded on the inner sides of the main pier 6 to form a pre-embedded hole 9, after the main pier is constructed above the position of the tie beam, reinforcing steel bars are embedded on the inner sides of the main pier 6 above the tie beam and a second fixed pulley 7 is fixedly installed;
2. meanwhile, a first fixed pulley 5 is arranged at the bottom of the opposite inner side of the main pier 6, and a hoisting elevator 3 is arranged at the 4 corners of the main pier cap 4;
3. meanwhile, a prefabricated support 1 is assembled on a main pier bearing platform 4 on the inner side of a main pier 6, then one end of a sliding rope 2 is fixed on a hoisting elevator 3, and the other end of the sliding rope is fixedly connected to 4 corners of the prefabricated support 1 after sequentially passing around a first fixed pulley 5 and a second fixed pulley 7;
4. after the prefabricated support 1 is lifted to a height capable of installing the construction hanging basket 8, the construction hanging basket 8 is installed at the lower end of the prefabricated support 1, and then the prefabricated support 1 is continuously lifted to a tie beam pouring position;
5. after the prefabricated support 1 is lifted to be slightly higher than the construction position, a worker enters a construction hanging basket 8, a steel bar 10 is inserted into a pre-buried hole 9, a lower supporting beam 11 is laid on the steel bar 10, an unloading sand box 12 is installed on the lower supporting beam 11, and then the prefabricated support 1 is lowered to be pressed on the unloading sand box 12;
6. after the prefabricated support 1 is installed in place, subsequent formwork installation and pouring construction can be carried out.
Preferably, in order to make the bottom of the precast support 1 contact with the unloading sand box 12 better, an upper support beam 13 parallel to the lower support beam 11 is provided at both ends of the bottom of the precast support 1, both ends of the upper support beam 13 are beyond the side of the precast support 1, and the slide-up rope 2 is fixedly connected to the protruding section of the upper support beam 13, and the upper support beams 13 at both sides are fixedly connected by a welding strut 14.
The above description is only for the purpose of illustrating the present invention and the appended claims, and the scope of the present invention is not limited thereto, and any person skilled in the art can substitute or change the technical solution and the inventive concept of the present invention within the technical scope of the present invention.

Claims (9)

1. The utility model provides a high mound tie beam template support system of formula that slides and rises which characterized in that: the device comprises a prefabricated support (1) arranged on the inner side of a main pier (6), wherein the prefabricated support (1) is connected with a hoisting elevator (3) through a sliding rope (2).
2. The skidding type high pier tie beam formwork support system of claim 1, wherein: hoist lifting machine (3) are equipped with 4 altogether, locate respectively on 4 angles of main mound cushion cap (4), and the bottom of the relative inboard of main mound (6) is equipped with first fixed pulley (5), and the top is equipped with second fixed pulley (7), sliding rope (2) one end fixed connection is on hoist lifting machine (3), and the other end is fixed connection on 4 angles of prefabricated support (1) after bypassing first fixed pulley (5) and second fixed pulley (7) in proper order.
3. The skidding type high pier tie beam formwork support system of claim 1, wherein: one side of the lower end of the prefabricated support (1) close to the main pier (6) is respectively provided with 1 construction hanging basket (8).
4. The skidding type high pier tie beam formwork support system of claim 1, wherein: the utility model discloses a prefabricated support of unloading sand box, including main pier (6), prefabricated support (1), the relative inboard setting position department in main pier (6) upper end is equipped with pre-buried hole (9), after prefabricated support (1) promoted to the setting position, is provided with rod iron (10) in pre-buried hole (9), and a supporting beam (11) is installed to the top of rod iron (10), and unloading sand box (12) are installed to the top of supporting beam (11), and the top of unloading sand box (12) is equipped with supporting beam (13), goes up supporting beam (13) fixed connection in the below of prefabricated support (1).
5. The skidding and lifting type high pier tie beam formwork support system of claim 4, wherein: the upper supporting beam (13) is connected with the sliding lifting rope (2); a supporting rod (14) is arranged between the upper supporting beams (13) at the two sides below the prefabricated bracket (1).
6. The skidding type high pier tie beam formwork support system of claim 1, wherein: the two sides of the closer main pier (6) of the prefabricated support (1) are respectively provided with a universal wheel (15).
7. The toboggan tie beam formwork support system of claim 6, wherein: the prefabricated support (1) is provided with a sleeve (16) perpendicular to the vertical surface of the main pier (6), a telescopic rod (17) is arranged in the sleeve (16), the universal wheel (15) is connected to one end, located on the outer side of the sleeve (16), of the telescopic rod (17), and a spring (18) is arranged between the bottom in the sleeve (16) and the end portion of the telescopic rod (17).
8. A method of constructing a template frame system of a skid-raised high pier tie beam according to any of claims 1 to 7, comprising the steps of:
(1) when the main pier (6) is constructed below the position of the tie beam, PVC pipes are pre-embedded on the inner side opposite to the main pier (6) to form a pre-embedded hole (9), after the main pier is constructed above the position of the tie beam, PVC pipes are pre-embedded on the inner side opposite to the main pier (6) above the tie beam, and a second fixed pulley (7) is fixedly installed in a penetrating mode;
(2) meanwhile, a first fixed pulley (5) is arranged at the bottom of the inner side of the main pier (6), and a hoisting elevator (3) is arranged at 4 corners of the main pier bearing platform (4);
(3) meanwhile, a prefabricated support (1) is assembled on a main pier bearing platform (4) on the inner side of the main pier (6), then one end of a sliding rope (2) is fixed on a hoisting elevator (3), and the other end of the sliding rope is fixedly connected to 4 corners of the prefabricated support (1) after sequentially passing through a fixed pulley (5) and a second fixed pulley (7);
(4) after the prefabricated support (1) is lifted to a height capable of installing a construction hanging basket (8), the construction hanging basket (8) is installed at the lower end of the prefabricated support (1), and then the prefabricated support (1) is continuously lifted to a tie beam pouring position;
(5) after the prefabricated support (1) is lifted to be slightly higher than a construction position, workers enter a construction hanging basket (8), steel rods (10) are inserted into the pre-buried holes (9), lower supporting beams (11) are laid on the steel rods (10), unloading sand boxes (12) are installed on the lower supporting beams (11), and then the prefabricated support (1) is lowered to be pressed on the unloading sand boxes (12);
(6) after the prefabricated support (1) is installed in place, subsequent formwork installation and pouring construction can be carried out.
9. The method of constructing a template frame system of a skid-raised high pier tie beam according to claim 8, wherein: in order to enable the bottom of the prefabricated support (1) to be in better contact with the unloading sand box (12), upper supporting beams (13) parallel to the lower supporting beam (11) are arranged at two ends of the bottom of the prefabricated support (1), two ends of each upper supporting beam (13) exceed the side face of the prefabricated support (1), the sliding lifting rope (2) is fixedly connected to the exceeding sections of the upper supporting beams (13), and the upper supporting beams (13) on two sides are fixedly connected through welding supporting rods (14).
CN202010209847.6A 2020-03-23 2020-03-23 Sliding type high pier tie beam formwork support system and construction method Pending CN111236087A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010209847.6A CN111236087A (en) 2020-03-23 2020-03-23 Sliding type high pier tie beam formwork support system and construction method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010209847.6A CN111236087A (en) 2020-03-23 2020-03-23 Sliding type high pier tie beam formwork support system and construction method

Publications (1)

Publication Number Publication Date
CN111236087A true CN111236087A (en) 2020-06-05

Family

ID=70869079

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202010209847.6A Pending CN111236087A (en) 2020-03-23 2020-03-23 Sliding type high pier tie beam formwork support system and construction method

Country Status (1)

Country Link
CN (1) CN111236087A (en)

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