阅读说明：本技术 一种千斤顶辅助桩基钢筋笼吊放结构及其施工方法 (A kind of jack auxiliary pile foundation steel bar cage hangs structure and its construction method ) 是由 高树青 刘斌 郭志光 禚锦鑫 于 2019-09-16 设计创作，主要内容包括：本发明公开了一种千斤顶辅助桩基钢筋笼吊放结构及其施工方法,包含待吊放入桩孔护筒中的钢筋笼、连接于桩孔护筒外侧四周的定位底座、连接于定位底座上的一组千斤顶装置、连接于千斤顶装置间的支撑杆以及通过吊绳与钢筋笼上部连接的起重机；一组千斤顶装置至少包含四个且呈十字布置；相对千斤顶装置上的立杆间连接支撑杆。施工时,通过千斤顶装置,可辅助起重机在吊装过程中对钢筋笼的承载,且利于在钢筋笼的分段拼装；通过定位底座的设置,利于固定千斤顶装置增加其一体性,且便于快捷安装和循环利用；通过支撑杆的设置,利于承担钢筋笼的重量,且支撑杆上凹槽的设置便于在钢筋笼下落过程中的限位,支撑杆与立杆的接触式连接便于施工操作。(The invention discloses a kind of jack auxiliary pile foundation steel bar cages to hang structure and its construction method, comprising wait hang the steel reinforcement cage in stake holes casing, the one group of jack device for being connected to the positioning base of surrounding on the outside of stake holes casing, being connected on positioning base, the support rod being connected between jack device and the crane connecting by lifting rope with steel reinforcement cage top；One group of jack device includes at least four and is in be arranged cross；Connection support bar between upright bar on opposite jack device.When construction, by jack device, can auxiliary hoist in hoisting process to the carrying of steel reinforcement cage, and be conducive to the segmented assembly in steel reinforcement cage；By the setting of positioning base, increase its integraty conducive to fixed jack device, and convenient for fast installing and recycling；By the setting of support rod, conducive to the weight for undertaking steel reinforcement cage, and the setting of support rod upper groove, convenient for the limit in steel reinforcement cage dropping process, constructing operation is convenient in the contact connection of support rod and upright bar.)

1. a kind of jack auxiliary pile foundation steel bar cage hangs structure, which is characterized in that comprising wait hang in stake holes casing (2) Steel reinforcement cage (1) is connected to the positioning base (3) of surrounding on the outside of stake holes casing (2), one group thousand be connected on positioning base (3) Jin ejection device (4), the support rod (5) that is connected between jack device (4) and connected by lifting rope (6) and steel reinforcement cage (1) top The crane (7) connect；

The steel reinforcement cage (1) includes vertical muscle and the circumferential stirrup that interval is connected on vertical muscle；

The jack device (4) include hydraulic jack (41), be connected to the upright bar (42) on hydraulic jack (41) top with And it is connected to the limit plate (43) between hydraulic jack (41) and positioning base (3)；One group of jack device (4) includes at least four A, four jack devices (4) are in be arranged cross；Connection support bar (5) between upright bar (42) on opposite jack device (4)； The support rod (5) is connected to below the circumferential stirrup of steel reinforcement cage (1).

2. a kind of jack auxiliary pile foundation steel bar cage as described in claim 1 hangs structure, which is characterized in that the positioning bottom Seat (3) is rectangular-shaped piece, and the width and length of rectangle are all larger than the overall diameter of stake holes casing (2)；The center on (3) four side of positioning base Place is connected with jack device (4).

3. a kind of jack auxiliary pile foundation steel bar cage as claimed in claim 2 hangs structure, which is characterized in that the positioning bottom Seat (3) cross section is U-shaped part, perpendicular comprising base plate (31) and two parallel plinths being vertically connected above base plate (31) Plate (32)；Width adequate hydraulic jack (41) diameter between the pedestal riser (32).

4. a kind of jack auxiliary pile foundation steel bar cage as claimed in claim 3 hangs structure, which is characterized in that the pedestal is perpendicular The lateral surface of plate (32) is provided with scale, and pedestal riser (32) is on the corner detachably connected.

5. a kind of jack auxiliary pile foundation steel bar cage as described in claim 1 hangs structure, which is characterized in that the limit plate (43) it is connected between hydraulic jack (41) and base plate (31), limit plate (43) is angular plate or square plate；Limit plate (43) setting is spaced in base plate (31) width direction.

6. a kind of jack auxiliary pile foundation steel bar cage as described in claim 1 hangs structure, which is characterized in that the upright bar (42) lower end is fixedly connected with hydraulic jack (41), upper-end contact connection support bar (5)；Upright bar (42) upper end has arc to lack Mouthful, arc notch adapts to the diameter of support rod (5).

7. a kind of jack auxiliary pile foundation steel bar cage as described in claim 1 hangs structure, which is characterized in that the support rod (5) length is greater than stake holes casing (2) diameter, and the setting of support rod (5) outer surface is fluted；Groove location adapts to circumferential stirrup position It sets, recess width and depth adapt to circumferential stirrup diameter.

8. a kind of jack auxiliary pile foundation steel bar cage hangs the construction party of structure as claimed in any of claims 1 to 7 in one of claims Method, which is characterized in that specific step is as follows:

Step 1: sectional making steel reinforcement cage (1), the weight of every section of steel reinforcement cage (1) be no more than crane (7) specified is heavy Amount is numbered every section of steel reinforcement cage (1) by lifting sequence；And hydraulic jack is selected according to the weight of integral installation steel reinforcement cage (1) (41) and support rod (5), and according to the diameter of stirrup circumferential in steel reinforcement cage (1) groove on support rod (5) is formulated；

Step 2: making positioning base (3) according to stake holes casing (2) diameter and selected hydraulic jack (41) size, will determine Position pedestal (3) connect with hydraulic jack (41) by limit plate (43) in advance, and by positioning base (3) by foundation bolt and Ground base connection；

Step 3: two hydraulic jacks (41) that starting is opposite, are raised to highest for this opposite hydraulic jack (41) stroke Position, then crane (7) lifts by crane the steel reinforcement cage (1) of a pile foundation segment by lifting rope (6), when steel reinforcement cage (1) enters stake holes After casing (2), by between this group of hydraulic jack (41) connection support bar (5) undertake steel reinforcement cage (1) weight；

Step 4: crane (7) lifts by crane the second section steel reinforcement cage (1), two section steel reinforcement cages (1) of welding become whole, support rod (5) with It falls with hydraulic jack (41), hydraulic jack (41) falling speed is synchronous with crane (7) at this time；

Step 5: another opposite hydraulic jack (41) of starting, is raised to highest for this opposite hydraulic jack (41) stroke Position, and connection support bar (5) branch undertakes steel reinforcement cage (1) weight, then removes and falls behind two hydraulic jacks (41) under one group On support rod (5)；

Step 6: support rod will be connected at this time after removing the support rod (5) fallen behind on two hydraulic jacks (41) under upper one group (5) two hydraulic jack (41) cylinder cranes (7) are synchronous to be fallen, and is so repeated raise-lower hydraulic jack (41) and is alternately accomplished The auxiliary of steel reinforcement cage (1) is installed, until whole steel reinforcement cages (1) install；Concreting to pile foundation is completed, steel reinforcement cage (1) no longer sink, remove overall structure.

9. the construction method that a kind of jack auxiliary pile foundation steel bar cage as claimed in claim 8 hangs structure, which is characterized in that For in step 4 and step 5, two steel reinforcement cages (1) are welded in steel reinforcement cage (1) dropping process or when support rod (5) supports, It is provided with temporary preventive measure, temporary preventive measure is fixed comprising provisional protection bracket or cable wind rope, and in each welded reinforcement Cage (1) checks the verticality and installation site of steel reinforcement cage (1) afterwards.

Technical field

The invention belongs to pile foundation steel bar cage construction field, in particular to a kind of jack auxiliary pile foundation steel bar cage hangs structure And its construction method.

Background technique

In building and structures work progress, pile foundation construction is crucial step.When pile foundation construction, pile foundation reinforcing bar Cage overall weight is larger, and the big model hoisting machinery cooperation of situ configuration is needed to carry out hanging steel reinforcement cage construction.But it due to place, hands over It passes to and the objective factors such as environment limits, live hoisting machinery can often occur, and wherein weight is not enough to lift whole pile foundation reinforcing bar Cage needs ancillary equipment to be carried jointly, and location and installation steel reinforcement cage during reinforcing bar cage hoisting is also required to carry out needle It designs changing.

Summary of the invention

The present invention provides a kind of jack auxiliary pile foundation steel bar cages to hang structure and its construction method, to solve scene Operation readiness when the auxiliary lifting of crane, location and installation and auxiliary in hoisting process and the technologies such as reusable are asked Topic.

To achieve the above object, the present invention adopts the following technical scheme:

A kind of jack auxiliary pile foundation steel bar cage hangs structure, comprising wait hang the steel reinforcement cage in stake holes casing, be connected to stake The positioning base of surrounding on the outside of the casing of hole, is connected between jack device one group of jack device being connected on positioning base Support rod and the crane that is connect by lifting rope with steel reinforcement cage top；

The steel reinforcement cage includes vertical muscle and the circumferential stirrup that interval is connected on vertical muscle；

The jack device includes hydraulic jack, is connected to the upright bar on hydraulic jack top and is connected to hydraulic jack Limit plate between top and positioning base；

One group of jack device includes at least four, and four jack devices are in be arranged cross；It is vertical on opposite jack device Connection support bar between bar；The support rod is connected to below the circumferential stirrup of steel reinforcement cage.

Further, the positioning base is rectangular-shaped piece, and the width and length of rectangle are all larger than the overall diameter of stake holes casing； Jack device is connected at the center on four side of positioning base.

Further, the positioning base cross section is U-shaped part, comprising base plate and is vertically connected on base plate Two parallel plinth risers of side；Width adequate hydraulic jack diameter between the pedestal riser.

Further, the lateral surface of the pedestal riser is provided with scale, and pedestal riser is on the corner detachably connected.

Further, the limit plate is connected between hydraulic jack and base plate, and limit plate is angular plate or rectangular Plate；Limit plate is spaced setting in base plate width direction.

Further, the upright bar lower end is fixedly connected with hydraulic jack, upper-end contact connection support bar；Upright bar upper end There is arc notch, arc notch adapts to the diameter of support rod.

Further, the support pole length is greater than stake holes casing diameter, and support rod outer surface is provided with groove；Groove position Adaptation circumferential stirrup position is set, recess width and depth adapt to circumferential stirrup diameter.

Further, a kind of jack auxiliary pile foundation steel bar cage hangs the construction method of structure, and specific steps are such as Under:

Step 1: sectional making steel reinforcement cage, the weight of every section of steel reinforcement cage is no more than the specified lifting weight of crane, to every section of steel Muscle cage is numbered by lifting sequence；And hydraulic jack and support rod are selected according to the weight of integral installation steel reinforcement cage, and according to steel The diameter of circumferential stirrup formulates the groove on support rod in muscle cage；

Step 2: making positioning base according to stake holes casing diameter and selected hydraulic jack size, positioning base is shifted to an earlier date It is connect with hydraulic jack by limit plate, and positioning base is connect by foundation bolt with ground base；

Step 3: two hydraulic jacks that starting is opposite, are raised to extreme higher position for this opposite hydraulic jack stroke, then Crane lifts by crane the steel reinforcement cage of a pile foundation segment by lifting rope, hydraulic by organizing at this after steel reinforcement cage enters stake holes casing Connection support bar undertakes steel reinforcement cage weight between jack；

Step 4: crane loading the second section steel reinforcement cage, two section steel reinforcement cages of welding become whole, and support rod follows hydraulic jack It falls, hydraulic jack falling speed is synchronous with crane at this time；

Step 5: another opposite hydraulic jack of starting, is raised to extreme higher position for this opposite hydraulic jack stroke, and even It connects support rod branch and undertakes steel reinforcement cage weight, then remove the support rod fallen behind in two hydraulic jacks under one group；

Step 6: two of support rod will be connected at this time after removing the support rod fallen behind in two hydraulic jacks under upper one group Hydraulic jack cylinder crane is synchronous to fall, and so repeats the auxiliary installation that raise-lower hydraulic jack is alternately accomplished steel reinforcement cage, directly It is installed to whole steel reinforcement cages；Concreting to pile foundation is completed, and steel reinforcement cage no longer sinks, and removes overall structure.

Further, in step 4 and step 5, two reinforcing bars in steel reinforcement cage dropping process or when support rod supports Cage welding is provided with temporary preventive measure, and temporary preventive measure is fixed comprising provisional protection bracket or cable wind rope, and each The verticality and installation site of steel reinforcement cage are checked after welded reinforcement cage.

The beneficial effects of the present invention are embodied in:

1) present invention is by jack device, can auxiliary hoist in hoisting process to the carrying of steel reinforcement cage, and be conducive in steel The segmented assembly of muscle cage；

2) present invention is by the setting of positioning base, increases its integraty conducive to fixed jack device, and positioning base can Dismantling connection, convenient for fast installing and recycling；

3) present invention is by the setting of support rod, and conducive to the weight for undertaking steel reinforcement cage, and the setting of support rod upper groove is convenient for Constructing operation is convenient in the contact connection of limit in steel reinforcement cage dropping process, support rod and upright bar；

Component of the present invention is that component is commonly used in construction, is easy to make at the construction field (site), and can guarantee construction quality, saves construction Time；Other features and advantages of the present invention will be illustrated in the following description, and partly becomes from specification aobvious And it is clear to, or understand through the implementation of the invention；The main object of the present invention and further advantage can pass through institute in the description The scheme that particularly points out is achieved and obtained.

Detailed description of the invention

Fig. 1 is that jack reinforcing post pile foundation steel bar cage hangs structure construction schematic diagram；

Fig. 2 is jack device and steel reinforcement cage connection construction schematic diagram；

Fig. 3 is jack device and positioning base connection structure diagram.

Appended drawing reference: 1- steel reinforcement cage, 2- stake holes casing, 3- positioning base, 31- base plate, 32- pedestal riser, 4- thousand Jin ejection device, 41- hydraulic jack, 42- upright bar, 43- limit plate, 5- support rod, 6- lifting rope, 7- crane.

Specific embodiment

For by certain construction site, lifting equipment is not enough to lift entire steel reinforcement cage 1, as shown in Figure 1, a kind of jack is auxiliary Pile foundation steel bar cage 1 is helped to hang structure, comprising wait hang the steel reinforcement cage 1 in stake holes casing 2, be connected to 2 outside four of stake holes casing The positioning base 3 in week, one group of jack device 4 being connected on positioning base 3, the support rod 5 being connected between jack device 4 And the crane 7 on 1 top of steel reinforcement cage is connected to by lifting rope 6.

As shown in Fig. 2, steel reinforcement cage 1 includes vertical muscle and the circumferential stirrup that interval is connected on vertical muscle；Jack device 4 Comprising hydraulic jack 41, it is connected to the upright bar 42 on 41 top of hydraulic jack and is connected to hydraulic jack 41 and positioning bottom Limit plate 43 between seat 3；One group of jack device 4 includes at least four, and four jack devices 4 are in be arranged cross；Opposite thousand 42 connection support bars 5 of upright bar on jin ejection device 4；Wherein, support rod 5 is steel pole, and the required intensity of steel pole is according to steel reinforcement cage 1 Design weight determine；The support rod 5 is connected to below the circumferential stirrup of steel reinforcement cage 1.

As shown in figure 3, positioning base 3 is rectangle steel part, it is made using U-lag steel, comprising base plate 31 and is hung down The direct-connected two parallel plinth risers 32 for being connected to 31 top of base plate；The width and length of channel steel are all larger than the outer of stake holes casing 2 Diameter；It is welded at the center on 3 four side of positioning base or jack device 4 is bolted by connecting plate, when being bolted It can be adjusted and be connected according to on-site actual situations.

In the present embodiment, 3 width adequate hydraulic jack of positioning base, 41 diameter；The lateral surface of positioning base 3 can also root 1 size of steel reinforcement cage that scene need to install is provided with scale, on the corner bolt, grafting or the clamping of pedestal riser 32.

In the present embodiment, limit plate 43 is triangular steel plate, limit plate 43 is welded in hydraulic jack 41 and base plate Between 31；One of each hydraulic jack 41 is welded with two parallel limit plates 43 on circumferential side.

In the present embodiment, upright bar 42 is steel pole, and 42 lower end of upright bar is welded or is threadedly coupled, upper termination with hydraulic jack 41 Touch connection support bar 5；There is arc notch in 42 upper end of upright bar, and arc notch adapts to the diameter of support rod 5；5 length of support rod is greater than 2 diameter of stake holes casing, the setting of 5 outer surface of support rod are fluted；Groove location adapts to circumferential stirrup position, recess width and depth Adapt to circumferential stirrup diameter.

In conjunction with Fig. 1 and Fig. 3, further illustrate that a kind of jack auxiliary pile foundation steel bar cage 1 hangs the construction of structure Method, which is characterized in that specific step is as follows:

Step 1: sectional making steel reinforcement cage 1, the weight of every section of steel reinforcement cage 1 is no more than the specified lifting weight of crane 7, to every Section steel reinforcement cage 1 is numbered by lifting sequence；And hydraulic jack 41 and support rod 5 are selected according to the weight of integral installation steel reinforcement cage 1, And the groove on support rod 5 is formulated according to the diameter of stirrup circumferential in steel reinforcement cage 1.

Step 2: making positioning base 3 according to 2 diameter of stake holes casing and selected 41 size of hydraulic jack, will position Pedestal 3 is connect with hydraulic jack 41 by limit plate 43 in advance, and positioning base 3 is connected by foundation bolt and ground base It connects.

Step 3: hydraulic jack 41 is connected with control system, and start two opposite hydraulic jacks 41 simultaneously, This opposite 41 stroke of hydraulic jack is raised to extreme higher position, then crane 7 lifts by crane a pile foundation segment by lifting rope 6 Steel reinforcement cage 1, after steel reinforcement cage 1 enters stake holes casing 2, by undertaking reinforcing bar in 41 connection support bars 5 of this group of hydraulic jack 1 weight of cage.

Step 4: crane 7 lifts by crane the second section steel reinforcement cage 1, two section steel reinforcement cages 1 of welding become whole, and support rod 5 follows liquid Jack 41 is pressed to fall, 41 falling speed of hydraulic jack is synchronous with crane 7 at this time, and the lifting of crane 7 can also rise simultaneously To preventing the wiggly effect of steel reinforcement cage 1.

Step 5: another opposite hydraulic jack 41 of starting, is raised to highest for this opposite 41 stroke of hydraulic jack Position, and connection support bar 5 undertakes 1 weight of steel reinforcement cage, then removes the support fallen behind in two hydraulic jacks 41 under one group Bar 5.

Step 6: support rod will be connected at this time after removing the support rod 5 fallen behind in two hydraulic jacks 41 under upper one group 5 two hydraulic jacks, 41 cranes 7 are synchronous to fall, and so repeats raise-lower hydraulic jack 41 and is alternately accomplished steel reinforcement cage 1 Auxiliary installation, until whole steel reinforcement cages 1 install；Concreting to pile foundation is completed, and steel reinforcement cage 1 no longer sinks, tears open Except overall structure.

In addition, in step 4 and step 5, two steel reinforcement cages 1 in 1 dropping process of steel reinforcement cage or when support rod 5 supports Welding, is provided with temporary preventive measure, and temporary preventive measure includes that provisional protection bracket or cable wind rope are fixed；And it is welding every time Connect the verticality and installation site that steel reinforcement cage 1 is checked after steel reinforcement cage 1.For each segment steel reinforcement cage 1 after welding, or support After bar 5 exchanges, whether the vertical verticality and position for being both needed to review steel reinforcement cage 1 meet design installation site requirement, if not Meet timely adjustment.

The foregoing is merely the preferable specific embodiments of the present invention, but scope of protection of the present invention is not limited thereto, The change or replacement that anyone skilled in the art is expected in the technical scope disclosed by the present invention should all be contained Lid is within protection scope of the present invention.