CN110469106A - A kind of high rise elevator well jacking formwork system and its construction method - Google Patents

Abstract

The invention discloses a high-rise elevator shaft jacking formwork system and a construction method thereof, including a bottom support mechanism, a vertical jacking hydraulic device, an upper support mechanism, a formwork support device and a control system, and a gap between the bottom support mechanism and the upper support mechanism. It is connected by a vertical lifting hydraulic device. The vertical lifting hydraulic device is used to lift the upper support mechanism and lift the bottom support mechanism. The top of the upper support mechanism is provided with a formwork support device. The formwork is detachably installed on the outer periphery of the formwork support device. The jacking hydraulic device, the upper support mechanism and the bottom support mechanism are all electrically connected with the control system. The high-rise elevator shaft jacking formwork system and its construction method do not need to be dismantled separately when the formwork is installed and removed, and can be lifted as a whole with the hydraulic lifting system, which achieves the mechanized and intelligent construction of the shear wall in the elevator shaft of a high-rise building, and improves its performance. Safety and reliability.

Description

A high-rise elevator shaft jacking formwork system and its construction method

technical field

The invention relates to the technical field of high-rise elevator shafts, in particular to a high-rise elevator shaft jacking formwork system and a construction method thereof.

Background technique

Existing high-rise building elevator shaft construction mainly uses steel pipe scaffolding as a support, and wood formwork or steel formwork as a formwork system. With the height of the building, the construction scaffolding is erected layer by layer. There are a series of shortcomings such as repeated scaffolding, high operational risk, high labor cost, difficult operation, low degree of mechanization, high risk, high falling objects and high impact, and heavy template weight.

Contents of the invention

The object of the present invention is to provide a high-rise elevator shaft jacking formwork system and its construction method to solve the above-mentioned problems in the prior art. The mechanized and intelligent construction of the shear wall in the elevator shaft of the building improves its safety and reliability.

In order to achieve the above object, the present invention provides the following solution: The present invention provides a high-rise elevator shaft jacking formwork system, including a bottom support mechanism, a vertical jacking hydraulic device, an upper support mechanism, a formwork support device and a control system. The bottom support mechanism and the upper support mechanism are connected through a vertical jacking hydraulic device, and the vertical jacking hydraulic device is used to lift the upper support mechanism and lift the bottom support mechanism, and the upper support mechanism The formwork support device is arranged on the top, and the formwork is detachably installed on the outer periphery of the formwork support device. The vertical jacking hydraulic device, the upper support mechanism and the bottom support mechanism are all electrically connected to the control system.

Further, the bottom support mechanism includes a bottom beam, a bottom frame, a cross beam and a corbel, the bottom beam is installed at both ends of the bottom frame, the corbels are placed in the bottom beam, and the hydraulic system One end of the hydraulic rod is fixedly connected to the corbel beam by bolts, and the hydraulic cylinder of the hydraulic system is fixedly connected to the bottom beam by bolts; the bottom frame is installed in the fixing groove of the beam, and the top of the beam is installed There is a frame, and the bottom of the vertical lifting hydraulic device is fixedly connected with the bottom supporting mechanism.

Further, a small oil cylinder cover is installed on the outside of the hydraulic system, and the oil pipe outlet of the hydraulic system is located on the small oil cylinder cover and faces the inside of the beam.

Further, the upper support mechanism includes an upper beam, an upper frame, a cross beam and a corbel, the upper beam is installed at both ends of the upper frame, the corbel is placed in the upper beam, and the hydraulic pressure of the hydraulic system One end of the rod is fixedly connected to the corbel beam by bolts, and the hydraulic cylinder of the hydraulic system is fixedly connected to the upper beam by bolts; the upper frame is installed in the fixing groove of the beam, and the top of the beam is installed with a frame , the top of the vertical jacking hydraulic device is fixedly connected with the upper supporting mechanism.

Further, a small oil cylinder cover is installed on the outside of the hydraulic system, and the oil pipe outlet of the hydraulic system is located on the small oil cylinder cover and faces the inside of the beam.

Further, a lower guide seat and an upper guide seat are respectively welded on the frame of the bottom support mechanism and the upper support mechanism, and guide holes are correspondingly opened on the two guide seats, and the guide shafts pass through the two guide seats In the opened guide hole, the bottom of the guide shaft is connected with the lower guide seat as a whole.

Further, the template support device is fixed on the upper guide seat of the upper support mechanism, and the template support device includes four columns symmetrically arranged in the center, and the tops of the four columns are welded with a well-shaped structure. I-beams, the intersection points of each I-beam are fixed by hoops, and formwork sliding hooks are installed at the end of each I-beam, and the formwork sliding hooks are used to hang the formwork.

Further, an operation platform is erected between the four columns, and protective flaps are arranged around the operation platform.

The present invention also provides a construction method for a high-rise elevator shaft jacking formwork system, which is applied to the lifting of the above-mentioned high-rise elevator shaft jacking formwork system, including the following steps:

1) First pour the main structure of the elevator shaft on the first floor, and reserve two square holes on the wall as the supporting holes for the corbel beam;

2) Assemble the bottom support mechanism, and assemble and fix the bottom beam, underframe, corbel beam and cross beam in the bottom support mechanism;

3) Install a vertical jacking hydraulic device on the top of the assembled bottom support mechanism through bolts;

4) Assemble the upper supporting mechanism, and install the assembled upper supporting mechanism on the top of the vertical jacking hydraulic device;

5) Install the guide shaft, weld the guide seat on the upper support mechanism and the bottom support mechanism respectively, then install the guide shaft between the two guide seats, and connect the bottom of the guide shaft with the lower guide seat as a whole;

6) Install the formwork support device, install the formwork support device on the upper support mechanism, and then hoist the formwork;

7) Install the motor and circuit, install the motor of the hydraulic system, add hydraulic oil, and connect the circuit; debug after installation to make the vertical lifting hydraulic device in place, and fix and strengthen the formwork after the debugging is qualified;

8) After pouring the concrete of this layer, remove the formwork, use the sliding hook to shrink the formwork inward, then shrink the four corbel beams of the upper support mechanism, and start the vertical jacking hydraulic device to lift the upper support mechanism to the next level. After the jacking is in place, extend the corbels; then shrink the four corbels of the bottom support mechanism, start the vertical jacking hydraulic device, lift the bottom support mechanism as a whole and extend the corbels; use the sliding crane The hook slides the formwork outward, slides to the construction position, supports and fixes the formwork, and carries out the main construction;

9) Repeat step 8) until the construction of the main body of the elevator room of the entire building is completed, and then dismantle it.

Compared with the prior art, the present invention has achieved the following technical effects:

1. The formwork adopts a new type of integrated aluminum alloy formwork. The formwork structure is lightweight, the formwork has fewer joints, light weight and high strength, and the appearance quality of concrete is high, which can realize recycling.

2. By adopting the hydraulic overall lifting technology, the lifting formwork system of the high-rise elevator shaft is lifted as a whole, which solves the problems of complex erection and disassembly of traditional scaffolding, inconvenient installation of formwork, and unsuitable removal of garbage in the shaft, and improves the image of civilized construction.

3. The high-rise elevator shaft jacking formwork system is equipped with professional protective devices and safety devices to realize the mutual self-locking of the upper and lower corbels and ensure the stability of the high-rise elevator shaft jacking formwork system.

4. The hydraulic intelligent operation control system is adopted in the lifting formwork system of the high-rise elevator shaft, which can effectively realize the automatic control of the hydraulic system, realize the synchronization of the hydraulic system, improve the reliability of long-distance transmission, and ensure the quality and safety of concrete.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the accompanying drawings required in the embodiments. Obviously, the accompanying drawings in the following description are only some of the present invention. Embodiments, for those of ordinary skill in the art, other drawings can also be obtained based on these drawings without any creative effort.

Figure 1 is a schematic diagram of the overall structure of the high-rise elevator shaft hoisting formwork system;

Fig. 2 is the pouring diagram of the main body of the elevator shaft;

Fig. 3 is a structural schematic diagram 1 of the bottom support mechanism;

Fig. 4 is a structural schematic diagram 2 of the bottom support mechanism;

Fig. 5 is a schematic diagram of the hydraulic system setting method;

Fig. 6 is a schematic diagram of the position setting of the bottom support mechanism, the vertical jacking hydraulic device and the upper support mechanism;

Figure 7 is a schematic diagram of the installation position of the guide shaft;

Figure 8 is a schematic diagram of the installation position of the template support device;

Fig. 9 is a structural composition diagram of the formwork supporting device;

Fig. 10 is the sectional view of the state one of high-rise elevator shaft jacking formwork system;

Fig. 11 is the axonometric view of the state two of the high-rise elevator shaft jacking formwork system;

Fig. 12 is the sectional view of the state two of high-rise elevator shaft jacking formwork system;

Among them, 1 bottom support mechanism; 11 bottom beam; 12 bottom frame; 13 corbel beam; 14 beam; 15 small oil cylinder cover; 16 connecting flange; Jacking hydraulic device; 3 upper support mechanism; 4 template supporting device; 41 column; 42 operating platform; 43 I-beam; 44 template sliding hook; 45 hoop; 46 protective flap; 5 template; 6 guide shaft; Support holes.

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

The object of the present invention is to provide a high-rise elevator shaft jacking formwork system and its construction method to solve the above-mentioned problems in the prior art. The mechanized and intelligent construction of the shear wall in the elevator shaft of the building improves its safety and reliability.

In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

As shown in Figures 1-12, the present invention provides a high-rise elevator shaft jacking formwork system, including a bottom support mechanism 1, a vertical jacking hydraulic device 2, an upper support mechanism 3, a formwork support device 4 and a control system, the bottom The support mechanism 1 and the upper support mechanism 3 are connected by a vertical jacking hydraulic device 2. The vertical jacking hydraulic device 2 is used to lift the upper support mechanism 3 and the bottom support mechanism 1. The template 5 is detachably installed on the template The outer periphery of the support device 4, the vertical jacking hydraulic device 2, the upper support mechanism 3 and the bottom support mechanism 1 are all electrically connected with the control system.

Bottom support mechanism 1 includes bottom beam 11, bottom frame 12, crossbeam 14 and corbel 13, bottom beam 11 is installed on the two ends of bottom frame 12, corbel 13 is placed in bottom beam 11, hydraulic pressure rod 17 of hydraulic system One end is fixedly connected with the corbel beam 13 by bolts, and the hydraulic cylinder 18 of the hydraulic system is fixedly connected with the bottom beam 11 by bolts; The bottom of the jacking hydraulic device 2 is fixedly connected with the bottom support mechanism 1; when the hydraulic rod 17 drives the corbel beam 13 to extend outward, the corbel beam 13 is stuck in the support hole 7 of the main body of the elevator shaft to realize the positioning of the bottom support mechanism 1 , the upper support mechanism 3 and the bottom support mechanism 1 have the same working principle. The outside of the hydraulic system is equipped with a small oil cylinder cover plate 15, and the oil pipe outlet of the hydraulic system is located on the small oil cylinder cover plate 15 and faces the inside of the crossbeam 14. The upper support mechanism 3 has the same structure as the bottom support mechanism 1 .

The bottom support mechanism 1 and the frame 19 of the upper support mechanism 3 are respectively welded with a lower guide seat and an upper guide seat. The two guide seats are correspondingly provided with guide holes, and the guide shaft 6 is set on the two guide seats. In the guide hole, the bottom of the guide shaft 6 is connected as a whole with the lower guide seat.

A formwork supporting device 4 is fixed on the upper guide seat of the upper supporting mechanism 3, and the formwork supporting device 4 includes four columns 41 arranged symmetrically in the center. The intersection point of I-beam 43 is fixed by hoop 45, and the end of each I-beam 43 is equipped with template sliding hook 44, and template sliding hook 44 is used for hanging template 5 tightly. An operating platform 42 is erected between the four uprights 41 , and protective flaps 46 are arranged around the operating platform 42 .

The working principle of the high-rise elevator shaft jacking formwork system is as follows: through the flexible connection of hydraulic lifting system, intelligent control system, formwork system and protective device as a whole. The high-rise elevator shaft jacking formwork system climbs up floor by floor with the construction of the building. After the formwork supporting layer concrete is poured, the formwork 5 is removed, and the upper four corbels 13 are contracted. After the contraction is completed, the vertical jacking cylinder is activated. , jacking up to the next floor, after the jacking is in place, stretch out the corbels 13; then, contract the four corbels 13 in the lower part, after the contraction is completed, start the vertical jacking oil cylinder, lift the lower part as a whole, and lift Stretch corbel beam 13 after putting in place, support formwork again. The operation is repeated in this way, and after the construction of the main body of the elevator shaft of the whole building is completed, the demolition is carried out.

Further, the construction method of the high-rise elevator shaft jacking formwork system is as follows:

1) First pour the main structure of the elevator shaft on the first floor, reserve two 300X300 square holes on the wall as the supporting holes 7 of the corbel beam 13, and the distance between the holes is 400mm.

2) Assemble the bottom support mechanism

First, the bottom beam 11 is installed on both ends of the bottom frame 12, and the two holes on the bottom beam 11 correspond to the two holes at the ends of the bottom frame 12 respectively. Connect the pin shaft; then, place the corbel beam 13 in the bottom beam 11, use M30x80mm bolts to connect with the hydraulic rod 17 of the hydraulic system, and use M30x80mm bolts to connect the hydraulic cylinder barrel 18 of the hydraulic system with the bottom beam 11 Secondly, the small oil cylinder cover plate 15 is installed on the outside of the hydraulic system, and as a protection device, the oil pipe outlet on the small oil cylinder cover plate 15 faces the inside of the crossbeam 14; again, the underframe 12 is installed in the crossbeam 14 wide and is 180mm in the groove. The two holes in the middle of the frame 12 are respectively corresponding to the two connection holes of the crossbeam 14. The pin shaft connects the bottom beam 11, the bottom frame 12, and the small oil cylinder cover plate 15 together; finally, the four connection sections of the frame 19 are respectively connected with the connection sections on the bottom frame 12 using M16x100mm bolts to form a complete Bottom support mechanism.

3) Install vertical jacking hydraulic device 2

Install the three-stage vertical jacking hydraulic device, use 6 M16x30mm bolts to connect the bottom support mechanism with the bottom of the three-stage vertical jacking hydraulic device, the middle part of the crossbeam 14 of the bottom support mechanism 1 is provided with a connecting flange 16, vertical jacking The bottom of the lifting hydraulic device 2 is fixedly connected with the connecting flange 16 .

4) Assemble and install the upper supporting mechanism

First, the upper beam is installed on both ends of the chassis 12, and the two holes on the upper beam correspond to the two holes at the ends of the chassis 12 respectively. The pin shaft is connected; then, place the corbel beam 13 in the upper beam, use M30x80mm bolts to connect with the hydraulic rod 17 of the hydraulic system, and use M30x80mm bolts to connect the hydraulic cylinder barrel 18 of the hydraulic system with the bottom beam 11; Secondly, the small oil cylinder cover plate 15 is installed on the outside of the hydraulic system. As a protection device, the outlet of the oil pipe on the small oil cylinder cover plate 15 faces the inside of the crossbeam 14; again, the bottom frame 12 is installed in the 180mm groove of the crossbeam 14, and the bottom frame The two holes in the middle of 12 correspond to the two connecting holes of the beam 14 respectively. The pin shaft connects the bottom beam 11, the bottom frame 12, and the small oil cylinder cover plate 15 together; finally, the four connection sections of the frame 19 are respectively connected with the connection sections on the bottom frame 12 using M16x100mm bolts to form a complete Upper supporting mechanism. Use 6 M16x30mm bolts to connect the upper support mechanism with the upper part of the three-stage vertical jacking hydraulic device.

5) Install guide shaft 6

First, weld the two guide seats on the upper and lower supporting mechanisms respectively; then, install the guide shaft 6 in the upper and lower guide seats, and use M16x200mm bolts at the bottom to connect the lower part of the guide shaft 6 and the lower guide seat as a whole.

6) Install formwork support device

Use 16 M16x30mm bolts to connect the four columns 41 of the formwork supporting device 4 with the reserved four connecting plates on the upper supporting mechanism respectively.

7) Install Template 5

Use an electric hoist or manual hoist, wire rope, etc. to fix one end to the hook on the aluminum alloy formwork 5, and use M16x30mm bolts to connect the other end to the sliding hook on the support structure of the formwork 5.

8) Install the motor and circuit

Install the hydraulic system motor, add 46# hydraulic oil, and connect the line.

9) debugging

After the first installation, carry out debugging to make the hydraulic device in place. After the debugging is qualified, the formwork 5 is fixed and strengthened.

10) To pour the concrete of this layer, first remove the formwork 5, and use the sliding hook to shrink the formwork 5 inward to the best position; then, shrink the upper four corbels 13, and after the contraction is completed, start the vertical jacking cylinder, Jacking up to the next floor, after the jacking is in place, stretch out the corbels 13; secondly, contract the four corbels 13 in the lower part, and after the contraction is completed, start the vertical jacking cylinder to raise the lower part as a whole to lift After being put in place, stretch out the corbel beam 13, use the sliding hook to slide the formwork 5 outwards, slide to the construction position, support and fix the formwork 5, and carry out the main body construction.

11) Repeat step 10), so that the operation is repeated, and after the construction of the main body of the elevator room of the whole building is completed, the demolition is carried out.

The high-rise elevator shaft jacking formwork system and construction method proposed by the present invention are integrated into a whole by flexibly connecting a hydraulic lifting system, an intelligent control system, a formwork system, and a protective device. There is no need to dismantle the template separately when installing and removing it, and it can be lifted as a whole with the hydraulic lifting system. The high-rise elevator shaft jacking formwork system climbs up floor by floor with the construction of the building. The stability is strong during the climbing process. The mechanized and intelligent construction of the force wall improves its safety and reliability.

In the present invention, specific examples have been used to illustrate the principle and implementation of the present invention. The description of the above embodiments is only used to help understand the method and core idea of the present invention; meanwhile, for those of ordinary skill in the art, according to the present invention The idea of the invention will have changes in the specific implementation and scope of application. In summary, the contents of this specification should not be construed as limiting the present invention.

Claims (9)

1. a kind of high rise elevator well jacking formwork system, it is characterised in that: including bottom supporting mechanism, vertically jack hydraulic dress It sets, upper supporting mechanism, template supporting device and control system, passes through between the bottom supporting mechanism and upper supporting mechanism Vertical jacking hydraulic device connection, the vertical jacking hydraulic device is for jacking the upper supporting mechanism and promoting the bottom The template supporting device is arranged in portion's supporting mechanism, the top of the upper supporting mechanism, and template is detachably arranged in described Template supporting device periphery, the vertical jacking hydraulic device, upper supporting mechanism and bottom supporting mechanism with the control System electrically connects.

2. high rise elevator well jacking formwork system according to claim 1, it is characterised in that: the bottom supporting mechanism packet Bottom beam, chassis, crossbeam and bracket beam are included, the bottom beam is mounted on the both ends of the chassis, and the bracket beam is placed in the bottom In beam, hydraulic stem one end and the bracket beam of hydraulic system are bolted to connection, the hydraulic cylinder of hydraulic system and institute Bottom beam bolt is stated to be fixedly connected；The chassis is mounted in the fixing groove of the crossbeam, and organic frame is installed at the top of the crossbeam, The bottom of the vertical jacking hydraulic device is fixedly connected with the bottom supporting mechanism.

3. high rise elevator well jacking formwork system according to claim 2, it is characterised in that: the outside of the hydraulic system Small oil tank cover board is installed, the oil pipe outlet of the hydraulic system is located on the small oil tank cover board and towards in the crossbeam Side.

4. high rise elevator well jacking formwork system according to claim 1, it is characterised in that: the upper supporting mechanism packet Upper beam, restocking, crossbeam and bracket beam are included, the upper beam is mounted on the both ends of the restocking, and the bracket beam is placed on described In beam, hydraulic stem one end and the bracket beam of hydraulic system are bolted to connection, the hydraulic cylinder of hydraulic system and institute Beam bolt is stated to be fixedly connected；The restocking is mounted in the fixing groove of the crossbeam, and organic frame is installed at the top of the crossbeam, The top of the vertical jacking hydraulic device is fixedly connected with the upper supporting mechanism.

5. high rise elevator well jacking formwork system according to claim 4, it is characterised in that: the outside of the hydraulic system Small oil tank cover board is installed, the oil pipe outlet of the hydraulic system is located on the small oil tank cover board and towards in the crossbeam Side.

6. high rise elevator well jacking formwork system according to claim 1, it is characterised in that: the bottom supporting mechanism and Lower guide holder and upper guide holder are respectively welded in the rack of upper supporting mechanism, corresponding offer is led on two guide holders Xiang Kong, guiding axis are threaded through in the pilot hole opened up on two guide holders, and the bottom of the guiding axis and the lower guide holder connect It connects and is integral.

7. high rise elevator well jacking formwork system according to claim 6, it is characterised in that: the upper supporting mechanism The template supporting device is fixed on upper guide holder, the template supporting device includes four columns being centrosymmetrically arranged, The I-steel built in intersecting parallels is welded at the top of four columns, the crosspoint of each I-steel is fixed by anchor ear, and The end of each I-steel is equipped with template sliding suspension hook, and the template sliding suspension hook is for hanging tight template.

8. high rise elevator well jacking formwork system according to claim 7, it is characterised in that: a structure of an essay for four columns Equipped with operating platform, the surrounding setting protection turnover panel of the operating platform.

9. a kind of construction method of high rise elevator well jacking formwork system is applied to height of any of claims 1-8 Layer elevator jacking formwork is put, which comprises the following steps:

1) first layer elevator main structure is poured first, and support holes of two square holes as bracket beam are reserved on metope Hole；

2) bottom supporting mechanism is assembled, bottom beam, chassis, bracket beam and the crossbeam in the supporting mechanism of bottom are subjected to assembling fixation；

3) the vertical jacking hydraulic device of installation is bolted at the top of assembled bottom supporting mechanism；

4) upper supporting mechanism is assembled, assembled upper supporting mechanism is mounted on to the top of vertical jacking hydraulic device；

5) guiding axis is installed, guide holder is respectively welded in upper supporting mechanism and bottom supporting mechanism, then pacifies guiding axis An entirety is connected as between two guide holders, and by the bottom of guiding axis and lower part guide holder；

6) template supporting device is mounted in upper supporting mechanism by installation template supporting arrangement, then lifts template again；

7) motor and route are installed, the motor of hydraulic system is installed, adds hydraulic oil, and connection line；It is debugged after installation, Make vertically to jack hydraulic device in place, the fixed reinforcement of template is carried out after debugging is qualified；

8) after pouring this layer concrete, by form removable, using sliding suspension hook then template is shunk into upper support to contract Four bracket beams of mechanism start vertical jacking hydraulic device and jack upper supporting mechanism to next layer, jack and extend back in place Bracket beam out；Then four bracket beams for shrinking bottom supporting mechanism start vertical jacking hydraulic device, by bottom supporting mechanism Bracket beam is stretched out after whole one layer of promotion；Template is slid in and out using sliding suspension hook, construction location is slided into, by pattern board supporting It is fixed, carry out main body construction；

9) circulation step 8) until after completion whole building escalator main body construction, it is removed.