CN111622120A - Bridge pier hoop support and bridge formwork support erection method - Google Patents
Bridge pier hoop support and bridge formwork support erection method Download PDFInfo
- Publication number
- CN111622120A CN111622120A CN202010486424.9A CN202010486424A CN111622120A CN 111622120 A CN111622120 A CN 111622120A CN 202010486424 A CN202010486424 A CN 202010486424A CN 111622120 A CN111622120 A CN 111622120A
- Authority
- CN
- China
- Prior art keywords
- hoop
- support
- pier
- opening
- bracket
- 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
Links
Images
Classifications
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention discloses a bridge pier hoop support and a bridge formwork support erection method, and the bridge pier hoop support comprises the following steps: the hoop opening and closing mechanism comprises a bracket, a hoop and a hoop opening and closing mechanism; the bridge formwork support erecting method comprises the steps of opening an anchor ear on the ground, and sleeving a support on a cylindrical pier; building a bearing platform on the support; hoisting a hoop bracket of the cylindrical pier and a bearing platform; opening the hoop opening and closing mechanism to hold the bridge pier tightly; sending constructors to the bearing platform, and reinforcing the hoop and the bracket; and (5) installing a bridge formwork. The bearing platform is built on the ground, then the bearing platform is hoisted to the top of the pier, the anchor ear is reinforced by constructors on the bearing platform, the bridge formwork support is built, the bridge formwork is installed, safety and reliability are achieved, major accidents can be avoided, and working efficiency is improved.
Description
Technical Field
The invention belongs to the technical field of viaduct beam construction, and particularly relates to a bridge pier hoop support and a bridge formwork support building method.
Background
With the development and progress of China, the infrastructure of roads, railways and the like is increased continuously, and in the bridge construction of a large-span support cast-in-place method, a temporary support connected and fixed with a pier needs to be arranged to support and build a bridge formwork, and a scaffold frequently adopted by a plurality of bridge formworks often has multiple accidents; the traditional temporary support uses an anchor ear, the shape of the anchor ear is set according to the shape of a pier, and the anchor ear support is fixedly connected through a bolt lock; the hoop mounting, bolt locking and dismounting work is usually to lift a construction hanging basket through a crane, so that at least two construction workers can mount and fix or dismount the hoop, and under the condition of large bridge drop and span, the hoop is high in quality, the workers are in suspension operation, the construction difficulty is high, and major accidents occur; although the safety rope can be worn for protection, the suspension operation can be influenced by the environmental factors and weather factors of the construction site, so that the construction cost is increased; therefore, the operation that the bridge hoop is disassembled and assembled by adopting lifting construction workers is reduced, and the construction risk is reduced.
Disclosure of Invention
The invention aims to solve the problems of high risk and low efficiency of suspended operation of workers when a bridge formwork support is built, and provides a bridge pier hoop support and a bridge formwork support building method.
The utility model provides a pier staple bolt support, it includes: the device comprises a bracket 1, a hoop and a hoop opening and closing mechanism 3;
one end of the hoop opening and closing mechanism 3 is connected with the support 1, the other end of the hoop opening and closing mechanism is connected with the hoop, the hoop is arranged on the support 1, and the hoop is opened and closed in the support 1; one side of the bracket 1 is provided with a pier inlet;
the hoop is provided with a bracket fixing part and is fixed with the bracket after being closed;
a plurality of bolt connecting through holes 13 are formed in the bracket 1 and are used for building a bridge formwork;
the hoop opening and closing mechanism 3 is of an electric push rod, a hydraulic cylinder or a screw rod structure;
the support 1 on be equipped with the auxiliary wheel, the auxiliary wheel encircles the laminating around the pier.
The bracket 1 is also provided with a control end;
the control end is a driving controller of the hoop opening and closing mechanism 3 and is electrically connected with the hoop opening and closing mechanism 3;
the control end adopted by the hoop opening and closing mechanism 3 is in wired or wireless remote control;
the hoop is an annular hoop and comprises two semicircular arc-shaped frames 21, and one end of each semicircular arc-shaped frame 21 is hinged; the hinged hinge bolt 213 is fixed on the bracket 1; one end of the hoop opening and closing mechanism 3 is coupled with the bracket 1, and the other end is coupled with the semicircular arc-shaped frame 21;
an opening fixing part 212 is arranged at the opening end of the semicircular arc frame 21;
one end of the opening fixing part 212 is an opening locking end, the other end of the opening fixing part is a bracket fixing end, and the hoop is fixedly connected with the bracket through a fixing bolt III 218 after being closed;
the hinge part of the semicircular arc-shaped frame 21 is provided with a reinforcing rib plate 211, and the reinforcing rib plate 211 is provided with a reinforcing locking screw hole I2113; the reinforcement rib plate 211 is fixedly connected with the bracket 1 through a fixing bolt I214 after the hoop is closed.
The hoops are oppositely clamped hoops and consist of two straight hoops 22, one side of the bracket 1 is provided with a pier inlet, the brackets 1 at the two sides of the inlet are provided with straight hoops 22 slide grooves, the slide grooves are internally provided with supporting frames 14, the body of the hoop opening and closing mechanism 3 is fixed on the supporting frames 14, the number of the hoop opening and closing mechanisms 3 is two, the two ends of each hoop opening and closing mechanism 3 are respectively connected with the two ends of the two straight hoops 22,
one straight anchor ear 22 is fixedly connected with the bracket 1 on the opposite side of the pier inlet, and the other straight anchor ear 22 is movably connected with the anchor ear opening and closing mechanism 3;
the fixed connection is hinged;
the number of the clamp-type hoops is 2-4, and the pier clamping surfaces of two adjacent clamp-type hoops are different.
A bridge formwork support building method comprises the following steps:
1) on the ground, opening the anchor ear, and sleeving the support 1 on the pier 61;
2) a bearing platform is built on the support 1;
3) hoisting a hoop bracket of the cylindrical pier and a bearing platform;
4) opening the hoop opening and closing mechanism 3 to hold the bridge pier tightly;
5) sending constructors to the bearing platform, and reinforcing the hoop and the bracket;
6) installing a bridge formwork;
the step 1) further comprises the following steps: and auxiliary wheels are arranged on the support 1 and are attached around the bridge pier in a surrounding mode, and when the support and the bearing platform of the cylindrical bridge pier hoop are lifted, the auxiliary wheels roll on the surface of the bridge pier.
The invention provides a bridge pier hoop support and a bridge formwork support erection method, and the bridge pier hoop support comprises the following steps: the device comprises a bracket 1, a hoop and a hoop opening and closing mechanism 3; according to the bridge formwork support building method, on the ground, an anchor ear is opened, and a support 1 is sleeved on a cylindrical pier 61; a bearing platform is built on the support 1; hoisting a hoop bracket of the cylindrical pier and a bearing platform; opening the hoop opening and closing mechanism 3 to hold the bridge pier tightly; sending constructors to the bearing platform, and reinforcing the hoop and the bracket; and (5) installing a bridge formwork. The bearing platform is built on the ground, then the bearing platform is hoisted to the top of the pier, the anchor ear is reinforced by constructors on the bearing platform, the bridge formwork support is built, the bridge formwork is installed, safety and reliability are achieved, major accidents can be avoided, and working efficiency is improved.
Drawings
FIG. 1 is an overall schematic view of a hoop bracket for a cylindrical pier in the invention;
FIG. 2 is a schematic view of a movable anchor ear of the anchor ear bracket for a cylindrical pier of the present invention;
FIG. 3 is a schematic diagram illustrating the movable anchor ear sleeving of the anchor ear bracket for a cylindrical pier in the present invention;
FIG. 4 is a schematic diagram of construction of the movable hoop formwork of the single-cylinder pier of the hoop bracket of the cylinder pier in the invention;
FIG. 5 is a schematic diagram of the double-cylinder pier movable hoop overlapping construction of the cylindrical pier hoop bracket of the present invention;
FIG. 6 is an overall schematic view of a square column pier hoop bracket according to the present invention;
fig. 7 is a schematic view, partially in section, of a hoop bracket for a square column pier according to the present invention;
FIG. 8 is a schematic diagram illustrating the telescoping of the hoop bracket for a square column pier according to the present invention;
FIG. 9 is a schematic view of construction of the single-column pier movable anchor ear formwork of the square-column pier anchor ear bracket of the present invention;
fig. 10 is a schematic view illustrating the overlapping construction of the opposite-clamping type anchor ear mold frame for the square column pier anchor ear support according to the present invention;
fig. 11 is a schematic view of construction of the movable anchor ear formwork of the square column pier anchor ear bracket according to the invention.
Detailed Description
Referring to fig. 1 to 2, a hoop bracket for a cylindrical pier, comprising: the device comprises a bracket 1, a hoop and a hoop opening and closing mechanism 3;
the support 1 is of a semi-I-shaped steel body structure, and the support 1 is formed by fixedly welding a plurality of steel plates or I-shaped steel;
more specifically, the bracket 1 is formed by welding an upper steel plate and a lower steel plate through reinforcing ribs (rib plates) or fixedly connecting the upper steel plate and the lower steel plate through bolts in a locking manner;
the center of the side frame of the bracket 1 and the steel plates of the upper and lower side frames of the bracket 1 in a C shape are both provided with a hinge connection part 11 and a shaft bolt connection part 12; the steel plate is also provided with a plurality of bolt connecting through holes 13;
the hoop is an annular hoop and comprises two semicircular arc-shaped frames 21, and one end of each semicircular arc-shaped frame 21 is hinged; the hinged hinge bolt 213 is fixed on the bracket 1; one end of the hoop opening and closing mechanism 3 is coupled with the bracket 1, and the other end is coupled with the semicircular annular frame;
one end of the opening fixing part 212 is an opening locking end, the other end of the opening fixing part is a bracket fixing end, and the hoop is fixedly connected with the bracket through a fixing bolt III 218 after being closed;
the hinge part of the semicircular arc-shaped frame 21 is provided with a reinforcing rib plate 211, and the reinforcing rib plate 211 is provided with a reinforcing locking screw hole I2113; the reinforcement rib plate 211 is fixedly connected with the bracket 1 through a fixing bolt I214 after the hoop is closed.
The opening fixing part 212 is provided with a reinforcing connecting plate fixing part 2121; a reinforcing locking screw hole II 21211 is also arranged in the reinforcing connecting plate fixing part 2121; the reinforcing connecting plate fixing parts 2121 in the opening part fixing parts 212 of the two semicircular arc frames 21 are connected through at least one connecting plate 215 and a fixing bolt II 216; namely, two through holes are arranged in the connecting plate 215, two fixing bolts II 216 respectively and sequentially pass through the reinforced locking screw holes II 21211 on the two semicircular frames 21 and the two through holes on the connecting plate 215, and the locking nuts 217 are used for locking and connecting the opening fixing parts 212 on the two semicircular frames 21;
the opening fixing part 212 is also provided with a reinforced locking screw hole III 2123, and the reinforced locking screw hole III 2123 can be connected with the bolt connecting through hole 13 on the bracket 1 through a fixing bolt III 218;
the hoop opening and closing mechanism 3 is an electric push rod, a hydraulic cylinder or an electric control lead screw structure;
when the hoop opening and closing mechanism 3 adopts an electric push rod or a hydraulic cylinder, one end of a main cylinder body of the electric push rod or the hydraulic cylinder is fixed in the shaft bolt connecting part 12 in a shaft connection mode; a piston rod in the electric push rod or the hydraulic cylinder is fixed on the hoop in a shaft coupling way; more specifically, two electric push rods or hydraulic cylinders are arranged, and one end of each electric push rod or hydraulic cylinder is respectively coupled to the shaft bolt connecting part 12 of the bracket 1; the other end of the hoop opening and closing mechanism 3 is fixed on the shaft connecting hole 2122 in a shaft connection way;
when the hoop opening and closing mechanism 3 adopts a screw rod structure, one end of the electric control screw rod is coupled with the hoop, a screw rod nut is sleeved on the electric control screw rod, and the outer side of the screw rod nut is coupled with the hoop;
the bracket 1 is also provided with a control end;
the control end is a driving controller of the hoop opening and closing mechanism 3 and is electrically connected with the hoop opening and closing mechanism 3;
the control end adopted by the hoop opening and closing mechanism 3 is in wired or wireless remote control;
when the hoop opening and closing mechanism 3 is remotely controlled, a power supply at a control end is fixed on the bracket 1, and direct-current power supply electric push rod, hydraulic cylinder or electric control lead screw structure equipment is selected;
the wireless remote control is an RF wireless transceiving module controller, and controls the stretching or shrinking of the hoop opening and closing mechanism 3 through a remote controller (an interactive control end);
when the hoop opening and closing mechanism 3 is controlled by a wire, an electric push rod, a hydraulic cylinder or an electric control lead screw structure device powered by direct current or alternating current is selected; a wired cable is adopted to provide electric energy and control instruction transmission for the hoop opening and closing mechanism 3;
and the transmission of the control instruction is an interactive control end, and the stretching or the contraction of the hoop opening and closing mechanism 3 is controlled through the interactive control end.
Embodiment 2 building method of bearing platform of single-cylinder bridge pier bridge formwork
Referring to the hoop support for cylindrical piers described in embodiment 1 and shown in fig. 3 to 4, when the bearing platform of the bridge formwork 8 for single cylindrical piers is constructed, the following steps are performed:
1) the hooping bracket of the cylindrical pier is sleeved at the joint of the abutment 5 and the cylindrical pier 61, the control end is controlled through the interactive control end, the hooping opening and closing mechanism 3 in the bracket 1 is controlled, and after the hoops are opened, the hoops are sleeved on the cylindrical pier 61;
2) pre-building a bearing platform; channel steel 41 and/or I-shaped steel 42 are/is used for surrounding the pier in a groined shape to be connected and fixed with the support 1; the die carrier bearing platform is fixedly connected with the bracket 1 through bolts;
3) the clamping space is reduced; the control end is controlled by utilizing the interactive control end to control the hoop opening and closing mechanism 3 in the bracket 1, so that the hoop in the bracket 1 is close to be closed; namely, the hoop in the bracket 1 is in clearance fit with the vertical surface of the cylindrical pier 61;
4) hoisting a hoop bracket of the cylindrical pier; hoisting the support 1 by using hoisting equipment, and lifting the support 1 to the top of the cylindrical pier 61; namely, a crane is used for hoisting the support 1 from the joint of the abutment 5 and the cylindrical pier 61 to the joint of the cylindrical pier 61 and the bridge beam slab formwork assembly;
5) clamping a hoop bracket of the cylindrical pier; the control end is controlled by utilizing the interactive control end, the hoop opening and closing mechanism 3 in the support 1 is controlled, and the hoop is driven to be completely closed, so that the support 1 is fastened at the top of the cylindrical pier 61;
6) reinforcing a hoop bracket of the cylindrical pier; the construction worker is sent to the top of the cylindrical pier 61, and operation is carried out after protective equipment is worn; reinforcing the bracket 1 by using a reinforcing bolt; namely, the strengthening locking screw holes I2113 are in locking connection with the bracket 1 through the fixing bolts I214; the reinforcing connecting plate fixing part 2121 in the two opening fixing parts 212 on the hoop is connected with a fixing bolt II 216 through at least one connecting plate 215; the reinforcing locking screw hole III 2123 is fixedly connected with the bolt connecting through hole 13 on the bracket 1 through a fixing bolt III 218;
a plurality of positioning pin holes are formed in the hoop, positioning pins are additionally arranged on the cylindrical pier 61, and the hoop is locked;
7) installing a bridge formwork 8; and fixedly connecting the bridge formwork 8 with the formwork bearing platform.
Referring to the hoop support for cylindrical piers described in embodiment 1 and shown in fig. 3 and 5, when the bearing platform of the bridge formwork 8 for the double-cylindrical pier bridge is constructed, the following steps are performed:
1) sleeving a hoop bracket of the cylindrical pier; at the joint of the bearing platform 7 and the cylindrical pier 61, the control end is controlled through the interactive control end, the hoop opening and closing mechanism 3 in the support 1 is controlled, the hoop is opened, and the hoop is sleeved on the cylindrical pier 61;
2) pre-building a bearing platform; at least 2 channel steels 41 and/or I-beams 42 are used as connecting bearing beams, and the supports 1 sleeved on the two piers are fixedly connected; after the connection of the bearing beam is completed, a bearing table top is built on the bearing beam by using channel steel 41; the channel steel 41 and/or the I-shaped steel 42 are/is used for surrounding two cylindrical piers 61 simultaneously in a groined shape to be in locking connection with the support 1;
3) the clamping space is reduced; the control end is controlled by utilizing the interactive control end to control the hoop opening and closing mechanism 3 in the bracket 1, so that the hoop in the bracket 1 is close to be closed; the hoop in the bracket 1 is in clearance fit with the vertical surface of the cylindrical pier 61;
4) hoisting a hoop bracket of the cylindrical pier; hoisting the support 1 by using hoisting equipment, and lifting the support 1 to the top of the cylindrical pier 61; namely, a crane is used for hoisting the bracket 1 from the upper end of the bearing platform 7 to the joint of the cylindrical pier 61 and the bridge beam slab formwork assembly;
5) clamping a hoop bracket of the cylindrical pier; the control end is controlled by utilizing the interactive control end, the hoop opening and closing mechanism 3 in the support 1 is controlled, and the hoop is driven to be completely closed, so that the support 1 is fastened at the top of the cylindrical pier 61;
6) reinforcing a hoop bracket of the cylindrical pier; the construction worker is sent to the top of the pier, and operation is carried out after the protection equipment is worn; reinforcing the supports 1 on the two cylindrical piers 61 respectively by using reinforcing bolts; namely, the strengthening locking screw holes I2113 are in locking connection with the bracket 1 through the fixing bolts I214; the reinforcing connecting plate fixing part 2121 in the two opening fixing parts 212 on the hoop is connected with a fixing bolt II 216 through at least one connecting plate 215; the reinforcing locking screw hole III 2123 is fixedly connected with the bolt connecting through hole 13 on the bracket 1 through a fixing bolt III 218;
the anchor ear is provided with a plurality of positioning pin holes, positioning pins are additionally arranged on the bridge pier, and the anchor ear is reinforced;
6) installing a bridge formwork 8; and fixedly connecting the bridge formwork 8 with the formwork bearing platform.
Embodiment 4 square column pier staple bolt support
Referring to fig. 6 to 7, a hoop bracket for a square column pier includes: the device comprises a bracket 1, a clamp type hoop and a hoop opening and closing mechanism 3;
the support 1 is C-shaped, and the support 1 is formed by fixedly welding a plurality of steel plates or I-shaped steel;
more specifically, an upper steel plate and a lower steel plate are welded through reinforcing ribs (rib plates) or fixedly connected through bolts in a locking manner on the support 1;
the center of the C-shaped side frame of the bracket 1 and the steel plates of the C-shaped upper and lower side frames of the bracket 1 are respectively provided with a hinged connection part 11 and a plurality of bolt connection through holes 13;
the support 1 is also provided with a support frame 14;
the opposite clamping type hoop is provided with two straight hoops 22 which have the same structure and are oppositely arranged in the bracket 1;
the straight hooping hoop 22 is mainly a steel frame consisting of channel steel and/or I-steel; the straight anchor ear 22 is provided with a hinge shaft hole II 221, a plurality of strengthening locking screw holes IV 222 and 2 shaft connecting through holes 223; the hinge shaft hole II 221 is arranged at the center of the straight anchor ear 22; 2 shaft connecting through holes 223 are formed at two ends of the straight anchor ear 22;
the hinge shaft hole II 221 is fixedly connected in the hinge connecting part 11 through a hinge bolt; at least two reinforced locking screw holes IV 222 are arranged on the straight hoop 22; the reinforcing locking screw hole IV 222 can be connected with the bolt connecting through hole 13 on the bracket 1 through a fixing bolt III 218;
the hoop opening and closing mechanism 3 is an electric push rod, a hydraulic cylinder or an electric control lead screw structure;
when the hoop opening and closing mechanism 3 adopts an electric push rod or a hydraulic cylinder, a main cylinder body of the electric push rod or the hydraulic cylinder is fixed on the bracket 1; a piston rod in the electric push rod or the hydraulic cylinder is fixed on the straight anchor ear 22; more specifically, two electric push rods or hydraulic cylinders are arranged, and the two electric push rods or hydraulic cylinders are parallel; one end of each electric push rod or hydraulic cylinder is respectively fixed on the support frame 14 of the bracket 1; the other end of the hoop opening and closing mechanism 3 is axially connected with the axial through hole 223 of the direct hoop 22;
when the hoop opening and closing mechanism 3 adopts a screw rod structure, one end of an electric control screw rod in the screw rod structure is coupled with the straight hoop 22, a screw rod nut in the screw rod structure is sleeved on the electric control screw rod, and the screw rod nut is fixed at the position of the coupling through hole 223;
the bracket 1 is also provided with a control end;
the control end is a driving controller of the hoop opening and closing mechanism 3 and is electrically connected with the hoop opening and closing mechanism 3;
the control end adopted by the hoop opening and closing mechanism 3 is in wired or wireless remote control;
when the hoop opening and closing mechanism 3 is remotely controlled, a power supply at a control end is fixed on the bracket 1, and direct-current power supply electric push rod, hydraulic cylinder or electric control lead screw structure equipment is selected;
the wireless remote control is an RF wireless transceiving module controller, and controls the stretching or shrinking of the hoop opening and closing mechanism 3 through a remote controller (an interactive control end);
when the hoop opening and closing mechanism 3 is controlled by a wire, an electric push rod, a hydraulic cylinder or an electric control lead screw structure device powered by direct current or alternating current is selected; a wired cable is adopted to provide electric energy and control instruction transmission for the hoop opening and closing mechanism 3;
and the transmission of the control instruction is an interactive control end, and the stretching or the contraction of the hoop opening and closing mechanism 3 is controlled through the interactive control end.
Referring to the anchor ear bracket for a square column pier described in embodiment 4 and shown in fig. 8 to 9, when a bearing platform of a bridge formwork 8 for a square column pier is constructed, the following steps are performed:
1) sleeving a hoop bracket of the square column pier; using a square column pier hoop bracket, at the joint of the abutment and the square column pier 62, firstly removing the clamp type hoop 22 connected with the hoop opening and closing mechanism 3, sleeving the straight hoop 22 on the square column pier 62, and then connecting the removed straight hoop 22 with the hoop opening and closing mechanism 3; when two or more square column pier hoop supports are used, the two square column pier hoop supports are arranged in a staggered mode from top to bottom; the two straight anchor ears 22 which are arranged in an up-and-down staggered manner are directly connected through bolts in a locking manner or through channel steel;
2) pre-building a bearing platform; channel steel 41 and/or I-shaped steel 42 are/is used for surrounding the pier in a groined shape to be connected and fixed with the support 1; the die carrier bearing platform is fixedly connected with the bracket 1 through bolts;
3) the clamping space is reduced; the interactive control end is used for controlling the control end to control the hoop opening and closing mechanism 3 in the bracket 1, so that the two straight hoops 22 in the bracket 1 move relatively; namely, the straight hooping hoop 22 in the bracket 1 is in clearance fit with the vertical surface of the pier;
4) hoisting a hoop bracket of the cylindrical pier; hoisting the support 1 by using hoisting equipment, and hoisting the support 1 to the top of the pier; namely, a crane is used for hoisting the support 1 from the connection position of the abutment and the pier to the connection position of the square column pier 62 and the bridge beam slab formwork assembly;
5) clamping a hoop bracket of the cylindrical pier; the interactive control end is used for controlling the control end, the hoop opening and closing mechanism 3 in the support 1 is controlled, and the straight hoop 22 is driven to be in close contact with the square column pier 62, so that the support 1 is fastened at the top of the square column pier 62;
6) reinforcing a hoop bracket of the cylindrical pier; the construction worker is sent to the top of the pier, and operation is carried out after the protection equipment is worn; reinforcing the bracket 1 by using a reinforcing bolt; namely, the reinforced locking screw hole IV 222 on the straight hoop 22 is respectively and fixedly connected with the bolt connecting through hole 13 on the bracket 1 through a plurality of fixing bolts III 218;
the support 1 and/or the straight hooping 22 are/is fixedly connected with the vertical surface of the square column pier 62 through a positioning pin;
7) installing a bridge formwork 8; and fixedly connecting the bridge formwork 8 with the formwork bearing platform.
Embodiment 6 bridge formwork bearing platform building method for pier with two pillars
Referring to the hoop support for the cylindrical pier described in embodiment 4 and shown in fig. 8, 10 and 11, when the bearing platform of the bridge formwork 8 for the bridge pier is constructed, the following steps are performed:
1) sleeving a hoop bracket of the square column pier; using a square column pier hoop support, at the connection part of the abutment and the pier, firstly, detaching the straight hoop 22 connected with the hoop opening and closing mechanism 3, sleeving the support on the square column pier 62, and then connecting the detached straight hoop 22 with the hoop opening and closing mechanism 3; when two or more square column pier hoop supports are used, the two square column pier hoop supports are arranged in a staggered mode from top to bottom; the two straight anchor ears 22 which are arranged in an up-and-down staggered manner are directly connected through bolts in a locking manner or through channel steel;
2) pre-building a platform; at least 2 channel steels 41 and/or I-beams 42 are used as connecting bearing beams, and the supports 1 sleeved on the two square column piers are fixedly connected; after the connection of the bearing beam is completed, a bearing table top is built on the bearing beam by using channel steel 41; the channel steel 41 and/or the I-shaped steel 42 are/is used for surrounding two piers simultaneously in a groined shape to be in locking connection with the support 1;
3) the clamping space is reduced; the interactive control end is used for controlling the control end to control the hoop opening and closing mechanism 3 in the bracket 1, so that the two straight hoops 22 in the bracket 1 move relatively; namely, the opposite clamping type hoop in the bracket 1 is in clearance fit with the vertical surface of the square column pier 62;
4) hoisting a hoop bracket of the cylindrical pier; lifting the support 1 by using lifting equipment, and lifting the support 1 to the top of the square pier 62; namely, a crane is used for lifting the support 1 from the upper end of the bearing platform to the joint where the square column pier 62 and the bridge beam slab formwork are assembled;
5) clamping a hoop bracket of the cylindrical pier; the control end is controlled by utilizing the interactive control end, the hoop opening and closing mechanism 3 in the support 1 is controlled, and the oppositely clamped hoop 22 is driven to be in close contact with the square pier, so that the support 1 is fastened at the top of the square pier 62;
6) reinforcing a hoop bracket of the cylindrical pier; the construction worker is sent to the top of the pier, and operation is carried out after the protection equipment is worn; reinforcing the bracket 1 by using a reinforcing bolt; namely, the reinforced locking screw holes IV 222 on the opposite clamping type hoop are respectively and fixedly connected with the bolt connecting through holes 13 on the bracket 1 through a plurality of fixing bolts III 218;
the bracket 1 and/or the opposite-clamping type hoop 22 are fixedly connected with the vertical face of the square column pier 62 through positioning pins;
7) installing a bridge formwork 8; and fixedly connecting the bridge formwork 8 with the formwork bearing platform.
Claims (9)
1. The utility model provides a pier staple bolt support, its characterized in that, it includes: the hoop opening and closing mechanism comprises a bracket (1), a hoop and a hoop opening and closing mechanism (3); one end of the hoop opening and closing mechanism (3) is connected with the support (1), the other end of the hoop opening and closing mechanism is connected with the hoop, the hoop is installed on the support (1), and the hoop is opened and closed in the support (1); one side of the bracket (1) is provided with a pier inlet.
2. The pier hoop support of claim 1, wherein: the hoop is provided with a support fixing part which is fixed with the support after being closed.
3. The pier hoop support of claim 2, wherein: the support (1) is provided with a plurality of bolt connecting through holes (13) for building the bridge formwork.
4. The pier hoop support according to claim 3, wherein: the hoop opening and closing mechanism (3) is of an electric push rod, a hydraulic cylinder or a lead screw structure.
5. The pier hoop support according to claim 1, 2, 3 or 4, wherein: the support (1) is provided with auxiliary wheels which are attached around the bridge pier in a surrounding way.
6. The pier hoop support according to claim 5, wherein: the bracket (1) is also provided with a control end; the control end is a driving controller of the hoop opening and closing mechanism (3), and the control end is electrically connected with the hoop opening and closing mechanism (3).
7. The pier hoop support according to claim 6, wherein: the control end adopted by the hoop opening and closing mechanism (3) is in wired or wireless remote control.
8. A bridge formwork support building method comprises the following steps:
1) on the ground, opening the anchor ear, and sleeving the support (1) on the pier (61);
2) a bearing platform is built on the bracket (1);
3) hoisting the bridge pier hoop support and the bearing platform;
4) opening the hoop opening and closing mechanism (3) to hold the bridge pier tightly;
5) sending constructors to the bearing platform, and reinforcing the hoop and the bracket;
6) and (5) installing a bridge formwork.
9. The bridge formwork support building method according to claim 8, wherein the step 1) further comprises the following steps: and auxiliary wheels are arranged on the support (1) and are attached around the bridge pier in a surrounding manner, and when the support hoop of the cylindrical bridge pier and the bearing platform are hoisted, the auxiliary wheels roll on the surface of the bridge pier.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010486424.9A CN111622120A (en) | 2020-06-01 | 2020-06-01 | Bridge pier hoop support and bridge formwork support erection method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010486424.9A CN111622120A (en) | 2020-06-01 | 2020-06-01 | Bridge pier hoop support and bridge formwork support erection method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111622120A true CN111622120A (en) | 2020-09-04 |
Family
ID=72258279
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010486424.9A Pending CN111622120A (en) | 2020-06-01 | 2020-06-01 | Bridge pier hoop support and bridge formwork support erection method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111622120A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20120103197A (en) * | 2011-03-10 | 2012-09-19 | 금오공과대학교 산학협력단 | Anti-seismic reinforcement performance evaluation |
| CN204039921U (en) * | 2014-05-19 | 2014-12-24 | 赵燕 | A kind of Construction Support without support bent cap |
| CN208183546U (en) * | 2018-04-25 | 2018-12-04 | 北京泽通水务建设有限公司 | A kind of Coping Construction anchor ear bracket |
| CN109404380A (en) * | 2018-10-10 | 2019-03-01 | 林丹 | The big load anchor ear device of cylinder |
| CN209194349U (en) * | 2018-11-16 | 2019-08-02 | 中交路桥建设有限公司 | A kind of hood type hydraulic climbing formwork system for cylinder pier construction |
| CN209989815U (en) * | 2019-02-11 | 2020-01-24 | 江苏长风海洋装备制造有限公司 | Hoop mechanism of pile driving and stabilizing platform device |
| CN210134353U (en) * | 2019-04-10 | 2020-03-10 | 中交路桥建设有限公司 | Bracket type hoop bracket for bent cap construction |
-
2020
- 2020-06-01 CN CN202010486424.9A patent/CN111622120A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20120103197A (en) * | 2011-03-10 | 2012-09-19 | 금오공과대학교 산학협력단 | Anti-seismic reinforcement performance evaluation |
| CN204039921U (en) * | 2014-05-19 | 2014-12-24 | 赵燕 | A kind of Construction Support without support bent cap |
| CN208183546U (en) * | 2018-04-25 | 2018-12-04 | 北京泽通水务建设有限公司 | A kind of Coping Construction anchor ear bracket |
| CN109404380A (en) * | 2018-10-10 | 2019-03-01 | 林丹 | The big load anchor ear device of cylinder |
| CN209194349U (en) * | 2018-11-16 | 2019-08-02 | 中交路桥建设有限公司 | A kind of hood type hydraulic climbing formwork system for cylinder pier construction |
| CN209989815U (en) * | 2019-02-11 | 2020-01-24 | 江苏长风海洋装备制造有限公司 | Hoop mechanism of pile driving and stabilizing platform device |
| CN210134353U (en) * | 2019-04-10 | 2020-03-10 | 中交路桥建设有限公司 | Bracket type hoop bracket for bent cap construction |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US11634877B2 (en) | Method for removal of temporary support system for road bridge pre-fabricated small box girder-type concealed bent cap, and equipment therefor | |
| CN111119071A (en) | Construction method for assembling precast concrete segment box girder | |
| CN112482232A (en) | Beam falling system for dismantling box girder Bailey beam support of urban railway and construction method | |
| CN212612011U (en) | Hoop support for cylindrical pier | |
| JP4521024B2 (en) | Reinforcing bar assembly method and reinforcing bar assembly jig for reinforcing structure of high structure | |
| CN111749140A (en) | Truss integral lifting type bridge high pier creeping formwork device and construction method | |
| CN111663457A (en) | Assembly module, modular construction platform and method and bridge abutment construction method | |
| CN113006145B (en) | Reverse construction method construction process for large-diameter working well movable formwork | |
| CN101618835B (en) | Hoisting platform capable of being lifted and disassembled and application method thereof | |
| CN112921785A (en) | Telescopic sliding formwork device for prefabricating steel-concrete composite beam | |
| CN112726442A (en) | Construction method of large-span thin-wall concrete sound barrier pouring trolley | |
| CN111622120A (en) | Bridge pier hoop support and bridge formwork support erection method | |
| CN111335172A (en) | Movable pier column cross beam prestress tensioning hanging frame construction platform and construction method | |
| CN116537063A (en) | Tower column system on ladle concrete and construction method | |
| CN110792038A (en) | Self-propelled mold hanging tool and method for high-altitude cast-in-place of tie rod arch bridge beam | |
| CN215210543U (en) | Lifting operation platform | |
| CN112502475B (en) | Supporting bearing capacity conversion device and using method thereof | |
| CN212532065U (en) | Gantry crane capable of being used in different height difference places | |
| CN113502756A (en) | Thin-wall pier hydraulic creeping formwork system and construction method thereof | |
| CN209816682U (en) | Bridge steel box girder aerial working operation platform | |
| CN113738156A (en) | Temporary support structure in limited space and dismantling method thereof | |
| CN112761187A (en) | Electric lifting movable mould frame for large-diameter working well | |
| CN213740646U (en) | Bridge deck temporary support for mounting steel box girder | |
| CN212335785U (en) | Pier column mould | |
| CN214994080U (en) | Electric lifting movable mould frame for large-diameter working well |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200904 |