CN213978602U

CN213978602U - Walking type pushing support and structural jig frame combined system

Info

Publication number: CN213978602U
Application number: CN202022033685.3U
Authority: CN
Inventors: 郑民; 陈子阳; 孙伟; 张旭; 郝永刚; 叶昌; 曹志丹; 黄俭锐; 班寿滢; 曾涛; 张伟; 晁成; 荣延东; 高鑫志
Original assignee: Beijing Urban Construction Road & Bridge Group Co ltd
Current assignee: Beijing Urban Construction Road & Bridge Group Co ltd
Priority date: 2020-09-16
Filing date: 2020-09-16
Publication date: 2021-08-17
Anticipated expiration: 2030-09-16

Abstract

The utility model discloses a walking type pushing support and structure jig combination system, which comprises a plurality of groups of temporary support jigs and a plurality of groups of pushing support frames, wherein each group of two temporary support jigs and each group of pushing support frames are respectively and symmetrically supported on the bottom surface of a bridge deck tie beam of a lower support type all-steel structure tied arch bridge; the pushing support frame is an eight-limb lattice column or a six-limb lattice column, the eight-limb lattice column comprises eight vertical and symmetrically arranged first upright steel pipes, the top of each first upright steel pipe is provided with four first distribution beams at intervals along the width direction of the pushing support frame, two sides of the bottom of each first distribution beam are fixedly connected with the top of each first upright steel pipe respectively, the top of each first distribution beam is fixedly connected with two bearing beams along the length direction of the pushing support frame, and two ends of the top of each bearing beam are fixedly connected with two cushion beams; the temporary supporting jig frame adopts four-limb lattice columns. The utility model discloses reduced large-scale mechanical equipment and dropped into operation, normally current nothing influence to the channel.

Description

Walking type pushing support and structural jig frame combined system

Technical Field

The utility model relates to a bridge construction technical field, concretely relates to walking pushes away support and structure bed-jig combination system.

Background

The bridge of the existing project is a single-span 120m through-type all-steel structure tied arch bridge with a single integral cross section. The bridge is built by spanning the brook on the bridge, the brook is a West Yan level III channel of Changhu Shen line, the daily average ship flow is 600 times, the channel operation is very busy, the channel cannot be sealed, and the channel is limited by a construction site, and a 120m span steel structure is constructed by adopting a walking pushing method. However, in the existing scheme, the investment of material equipment is large, the comprehensive unit cost is high, the influence on a navigation channel is large, the field construction speed is low, and large risks exist due to the large dead weight of the bridge.

Therefore, a walking type pushing support and structural jig combination system is needed to avoid a bearing platform and a capping beam of an approach bridge so as to facilitate the construction of the pile foundation of the pushing support.

The information disclosed in this background section is only for enhancement of understanding of the general background of the invention and should not be taken as an acknowledgement or any form of suggestion that this information constitutes prior art already known to a person skilled in the art.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a walking top pushes away support and structure bed-jig combination system, and it has reduced large-scale mechanical equipment and has come into operation, and construction speed is fast, to the normal current nothing influence of channel.

In order to achieve the purpose, the utility model provides a walking type pushing support and structure jig combination system, which comprises a plurality of groups of temporary supporting jigs and a plurality of groups of pushing support frames, wherein the temporary supporting jigs and the pushing support frames are arranged at intervals, and the number of each group of temporary supporting jigs and each group of pushing support frames is two; the pushing support frame is an eight-limb lattice column or a six-limb lattice column, wherein the eight-limb lattice column comprises eight vertical and symmetrically arranged first upright steel pipes, adjacent first upright steel pipes are connected with first oblique web members through a plurality of groups of first transverse web members, the top of each first upright steel pipe is provided with four first distribution beams at intervals along the width direction of the pushing support frame, two sides of the bottom of each first distribution beam are fixedly connected with the top of each first upright steel pipe respectively, the top of each first distribution beam is fixedly connected with two bearing beams along the length direction of the pushing support frame, two ends of the top of each bearing beam are fixedly connected with two pad beams, and the two pad beams are respectively vertical to the two bearing beams; and wherein, interim support bed-jig adopts four limbs lattice column, and four limbs lattice column includes four second stand steel pipes, connects through horizontal web member of multiunit second and second slant web member between the adjacent second stand steel pipe, and two second distribution roof beams of top fixedly connected with of second stand steel pipe, second stand steel pipe below are provided with concrete cushion cap basis.

In a preferred embodiment, the temporary supporting jig frames are four groups, the pushing supports are nine groups, wherein the first group of temporary supporting jig frame and the ninth group of pushing supports are respectively arranged on the outermost side, and a first group of pushing support frame, a second group of temporary supporting jig frame, a second group of pushing support frame, a third group of temporary supporting jig frame, a third group of pushing support frame, a fourth group of temporary supporting jig frame, a fourth group of pushing support frame, a fifth group of pushing support frame, a sixth group of pushing support frame, a seventh group of pushing support frame, an eighth group of pushing support frame and a ninth group of pushing support frame are sequentially arranged between the first group of temporary supporting jig frame and the ninth group of pushing support frame, wherein the seventh group of pushing support frame and the eighth group of pushing support frame are underwater support frames, and other support frames are arranged on land.

In a preferred embodiment, the first to fourth groups of pushing supports adopt eight-limb lattice columns, the fifth, sixth and ninth groups of pushing supports adopt six-limb lattice columns, the transverse width of each lattice column of the eight-limb lattice columns is 3m, the width in the bridge direction is 2.5+2+2.5m, the first upright steel pipe of the eight-limb lattice columns adopts a D630 steel pipe, the first transverse web member and the first oblique web member adopt an HM200 150 finished H-shaped steel, the first distribution beam adopts a double-spliced HM588 300 finished H-shaped steel, the bearing beam adopts an HM588 300 finished H-shaped steel, the pad beam adopts a double-spliced HM588 300 finished H-shaped steel, and the penetration depth of the steel pipe pile below the first upright steel pipe is 30 m.

In a preferred embodiment, the four-limb lattice column is a four-limb lattice column with the cross section size of 2 x 2m, the second upright column steel pipe is a phi 426x8 steel pipe, the second transverse web members are 16# I-steel or channel steel, and one second oblique web member is arranged in every 2m of the height direction.

In a preferred embodiment, the two bearing beams are respectively perpendicular to the four first distribution beams, and walking type pushing equipment is respectively fixed in the middle positions of the tops of the two bearing beams.

In a preferred embodiment, the concrete strength grade of the concrete bearing platform foundation is not lower than C30, the thickness of the concrete bearing platform foundation is 800mm, the plane size of the concrete bearing platform foundation is not less than 1000mm from the center of the second upright steel pipe to the concrete edge, a reinforcing mesh is distributed in the bearing platform, the column feet of the second upright steel pipe are welded with embedded parts, the thickness of the embedded part steel plate is 20mm, and each embedded part is provided with 9 threaded steel bars with the diameter of 20 mm.

In a preferred embodiment, the lower surface of the concrete bearing platform foundation is subjected to replacement filling and compaction treatment through brick slag with the thickness of 1.5m, the brick slag is backfilled layer by layer, the thickness of each layer is not more than 30cm, and the brick slag in the range of the foundation pit of the bearing platform is compacted by rolling through a hand vibration rammer or a small-sized road roller.

Compared with the prior art, the utility model discloses a walking pushes away support and structure bed-jig combination system's beneficial effect as follows: the utility model discloses a set up multiunit and support the bed-jig temporarily and push away the support frame with the multiunit, support the bed-jig temporarily and push away the support frame and support the bottom surface that the all steel construction tied arch bridge floor tie beam under with symmetrically respectively to with bridge floor tie beam welded fastening, the utility model discloses a walking pushes away support and structure bed-jig combination system and adopts the setting that the steel-pipe pile, shaped steel, concrete foundation combined together, has practiced thrift the combined cost greatly, can provide reference and demonstration for large-span bridge construction such as striding the railway, channel, construction speed is fast, and the precision is high, compares with conventional construction technology has obvious technique and economic advantage, does not influence the current situation traffic moreover, and construction precision is very high, and the construction site occupies for a short time, and the technology is advanced, and construction speed is fast.

Drawings

Fig. 1 is a schematic plan view of a walking pushing support and a structural jig assembly according to a preferred embodiment of the present invention.

Fig. 2 is an elevation view showing the arrangement of each of the first to fourth pushing supports according to the preferred embodiment of the present invention.

Fig. 3 is an elevation view showing the arrangement of each temporary support jig according to the preferred embodiment of the present invention.

Fig. 4 is a front view of each of the first to fourth group pushing supports of the preferred embodiment of the present invention.

Fig. 5 is a side view of each of the first through fourth sets of jacking legs of the preferred embodiment of the present invention.

Fig. 6 is a front view of a temporary support jig according to a preferred embodiment of the present invention.

Fig. 7 is a side view of a temporary support bed according to a preferred embodiment of the present invention.

Description of reference numerals:

1-temporary supporting jig frame, 111-first group temporary supporting jig frame, 112-second group temporary supporting jig frame, 113-third group temporary supporting jig frame, 114-fourth group temporary supporting jig frame, 2-pushing support frame, 211-first group pushing support frame, 212-second group pushing support frame, 213-third group pushing support frame, 214-fourth group temporary supporting jig frame, 215-fifth group pushing support frame, 216-sixth group pushing support frame, 217-seventh group pushing support frame, 218-eighth group pushing support frame, 219-ninth group pushing support frame, 21-first upright steel tube, 22-first transverse web member, 23-first diagonal web member, 24-first distributing beam, 25-bearing beam, 26-cushion beam, 27-walking pushing device, 11-second upright steel pipes, 12-second transverse web members, 13-second oblique web members, 14-second distribution beams, 15-concrete bearing platform foundations, 16-embedded parts, 3-bridge deck tie beams and 4-bridge decks.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments of the present invention, all other embodiments obtained by a person skilled in the art without creative work, all belong to the protection scope of the present invention.

Throughout the specification and claims, unless explicitly stated otherwise, the word "comprise", or variations such as "comprises" or "comprising", will be understood to imply the inclusion of a stated element or component but not the exclusion of any other element or component.

As shown in fig. 1-7, according to the utility model discloses preferred embodiment's walking top pushes away support and structure bed-jig combination system, including multiunit temporary support bed-jig 1 and multiunit top push away support frame 2, temporary support bed-jig 1 only is used for the support frame that the bed-jig was assembled to the bridge floor, top push away support frame 2 is used for top push away the support frame and do the support frame that the bed-jig was assembled to the bridge floor concurrently. The temporary supporting jig frames 1 and the pushing support frames 2 are arranged at intervals, the number of each temporary supporting jig frame 1 and each pushing support frame 2 is two, and the two temporary supporting jig frames 1 and the two pushing support frames 2 are symmetrically supported on the bottom surface of a bridge deck tie beam 3 of the through-put all-steel structure tied arch bridge and are welded and fixed with the bridge deck tie beam. Wherein, top pushes away support frame 2 and adopts eight limbs lattice column or six limbs lattice column, and eight limbs lattice column include eight vertical and first stand steel pipes 21 that the symmetry set up, and six limbs lattice column include six vertical and first stand steel pipes 21 that the symmetry set up, connect through first transverse web member 22 of multiunit and first slant web member 23 between the adjacent first stand steel pipe 21. Four first distribution beams 24 are arranged at intervals on the top of the first upright steel pipe 21 along the width direction of the pushing support frame 2, two sides of the bottom of each first distribution beam 24 are fixedly connected with the top of the first upright steel pipe 21 respectively, the top of each first distribution beam 24 is fixedly connected with two bearing beams 25 along the length direction of the pushing support frame 2, two pad beams 26 are fixedly connected to two end positions of the tops of the two bearing beams 25, and the two pad beams 26 are perpendicular to the two bearing beams 25 respectively. And wherein, interim support bed-jig 1 adopts four limbs lattice column, and four limbs lattice column includes four second stand steel pipes 11, connects through multiunit second horizontal web member 12 and second slant web member 13 between the adjacent second stand steel pipe 11, and two second distribution beam 14 of second stand steel pipe 11's top fixedly connected with, are provided with concrete cushion cap basis 15 below the second stand steel pipe 11.

In a preferred embodiment, as shown in fig. 1, the temporary supporting jig frames are four groups, and the pushing support frames are nine groups, wherein the first group of temporary supporting jig frame 111 and the ninth group of pushing support frame 219 are respectively disposed at the outermost sides, and the first group of pushing support frame 211, the second group of temporary supporting jig frame 112, the second group of pushing support frame 212, the third group of temporary supporting jig frame 113, the third group of pushing support frame 213, the fourth group of temporary supporting jig frame 114, the fourth group of pushing support frame 214, the fifth group of pushing support frame 215, the sixth group of pushing support frame 216, the seventh group of pushing support frame 217, the eighth group of pushing support frame 218, and the ninth group of pushing support frame 219 are sequentially disposed between the first group of temporary supporting jig frame 111 and the ninth group of pushing support frame 219. The seventh group of pushing supports 217 and the eighth group of pushing supports 218 are underwater supports, and the other supports are all arranged on land.

In a preferred embodiment, the first to fourth groups of pushing support frames adopt eight-limb lattice columns, the transverse bridge width of a single lattice column of the eight-limb lattice columns is 3m, the width in the bridge direction is respectively 2.5+2+2.5m, the first upright steel pipe 21 adopts a D630-14 steel pipe, and the soil penetration depth of the steel pipe pile below the first upright steel pipe is about 30m (determined according to geological conditions at different positions). First transverse web member 22 and first diagonal web member 23 adopt HM 200X 150 finished H-shaped steel, first distribution beam 24 adopts double-spliced HM 588X 300 finished H-shaped steel, bearing beam 25 adopts HM 588X 300 finished H-shaped steel, and pad beam 26 adopts double-spliced HM 588X 300 finished H-shaped steel. The two bearing beams 25 are respectively perpendicular to the four first distribution beams 24, and walking type pushing equipment 27 is respectively fixed in the middle positions of the tops of the two bearing beams 25.

In a preferred embodiment, after the seventh group of pushing support frames 217 and the eighth group of pushing support frames 218 are discharged from the water surface by using D630 × 14 steel pipe piles, the superstructure adopts the same structural form as the first to fourth groups of pushing support frames. The transverse bridge width of a single lattice column is 3m, and the transverse bridge width of the single lattice column is 2.5+2+2.5m along the bridge direction. The arrangement of the support frames in the water takes the navigation width of the river channel into consideration, which is not less than 40 meters (clear distance).

In a preferred embodiment, the fifth, sixth and ninth groups of pushing cradles employ six-limb lattice columns. The fifth group of pushing support frames adopt six lattice columns and pier column capping beams to jointly form a pushing support frame, the transverse bridge width of each lattice column is 3m, and the width in the bridge direction is respectively 2.5 (from the center of a capping beam top beam to the center of the nearest column) +2+2.5 m. The main limb of the latticed column of the fifth group of pushing support frames adopts a D630X 14 steel pipe, the web member adopts HM 200X 150 finished product H-shaped steel, the upper distribution beam adopts double-spliced HM 588X 300 finished product H-shaped steel, and the triple-spliced HM 588X 300 finished product H-shaped steel is placed below the walking pushing equipment and is used as a bearing beam. The two ends of the cushion beam adopt a double-spliced HM 588X 300 finished product H-shaped steel, and the cushion beam inclined strut is HM 200X 150 finished product H-shaped steel. The sixth group of pushing supports and the ninth group of pushing supports jointly form the pushing supports by utilizing the main pier and the cushion beam formed by 3 first upright steel pipe bent frames arranged on each side of the main pier. The transverse bridge width of the single bent frame is 2+2m, and the total length width along the bridge direction is 4.8m respectively. The main limbs of the bent frame columns adopt D630X 14 steel pipes, the web members adopt HM 200X 150 finished H-shaped steel, the upper distribution beam adopts a double-spliced HM 588X 300 finished H-shaped steel, and two sides between two groups of bent frames adopt HN 400X 200 finished H-shaped steel as connecting beams. The cushion beams at two ends are placed on the distribution beams of the bent frame, and a double-spliced HM 588-300 finished product H-shaped steel is adopted. The walking pushing equipment 27 is directly placed on the top capping beam of the main pier, and one side of the walking pushing equipment is flattened by 4-spliced HN 400X 200.

In a preferred embodiment, the height of the top of the pad beam 26 is +12.025m and the ground height is about 2.5m (measured from the site location). The height of the temporary support jig above the site ground is approximately 9525mm (relative to the ground elevation +2.50 m).

In a preferred embodiment, the four-limb lattice column is a four-limb lattice column with a cross-sectional dimension of 2 × 2m, the second upright steel pipe 11 is a phi 426x8 steel pipe, the second transverse web members 12 are 16# i-steel or channel steel, and one second oblique web member 13 is arranged in every 2m of the height direction.

In a preferred embodiment, the concrete strength grade of the concrete bearing platform foundation 15 is not lower than C30, the thickness of the concrete bearing platform foundation 15 is 800mm, the plane size of the concrete bearing platform foundation 15 is not less than 1000mm from the center of the second upright steel tube 11 to the concrete edge, a reinforcing mesh is arranged in the bearing platform, the column foot of the second upright steel tube 11 is welded with the embedded part 16, the thickness of the embedded part steel plate is 20mm, and each embedded part 16 is provided with 9 threaded steel bars (HRB 400/or HRB 335) with the diameter of 20.

In a preferred embodiment, the lower surface of the concrete bearing platform foundation 15 is subjected to filling and compacting treatment through brick slag with the thickness of 1.5m, the brick slag is backfilled layer by layer, the thickness of each layer is not more than 30cm, and the brick slag in the range of the foundation pit of the bearing platform is compacted by rolling through a hand vibration rammer or a small-sized road roller.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a walking pushes away support and structure bed-jig combination system which characterized in that: the walking type pushing support and structure jig frame combined system comprises a plurality of groups of temporary support jig frames and a plurality of groups of pushing support frames, the temporary support jig frames and the pushing support frames are arranged at intervals, the number of each group of temporary support jig frames and each group of pushing support frames is two, and the two temporary support jig frames and the two pushing support frames are respectively and symmetrically supported on the bottom surface of a bridge deck tie beam of the under-supported all-steel structure tied arch bridge and are welded and fixed with the bridge deck tie beam;

the pushing support frame is an eight-limb lattice column or a six-limb lattice column, wherein the eight-limb lattice column comprises eight vertical and symmetrical first upright steel tubes, adjacent first upright steel tubes are connected through a plurality of groups of first transverse web members and first oblique web members, the top of each first upright steel tube is provided with four first distribution beams at intervals along the width direction of the pushing support frame, two sides of the bottom of each first distribution beam are fixedly connected with the top of each first upright steel tube respectively, the top of each first distribution beam is fixedly connected with two bearing beams along the length direction of the pushing support frame, two ends of the top of each bearing beam are fixedly connected with two cushion beams, and the two cushion beams are respectively vertical to the two bearing beams;

and wherein, interim support bed-jig adopts four limbs lattice column, four limbs lattice column includes four second stand steel pipes, connects through horizontal web member of multiunit second and second slant web member between the adjacent second stand steel pipe, two second distribution roof beams of top fixedly connected with of second stand steel pipe, second stand steel pipe below is provided with concrete cushion cap basis.

2. The walking pushing support and structural jig frame combined system of claim 1, wherein: the temporary supporting jig frames are four groups, the pushing support frames are nine groups, the first group of temporary supporting jig frames and the ninth group of pushing support frames are respectively arranged on the outermost side, a first group of pushing support frame, a second group of temporary supporting jig frame, a second group of pushing support frame, a third group of temporary supporting jig frame, a third group of pushing support frame, a fourth group of temporary supporting jig frame, a fourth group of pushing support frame, a fifth group of pushing support frame, a sixth group of pushing support frame, a seventh group of pushing support frame, an eighth group of pushing support frame and a ninth group of pushing support frame are sequentially arranged between the first group of temporary supporting jig frames and the ninth group of pushing support frames, the seventh group of pushing support frame and the eighth group of pushing support frame are underwater support frames, and other support frames are arranged on land.

3. The walking pushing support and structural jig frame combined system of claim 2, wherein: the first group of the first support frame, the fourth group of the second support frame, the fifth group of the second support frame, the sixth group of the first support frame, the sixth group of the second support frame and the ninth group of the second support frame adopt six-limb lattice columns, the transverse bridge width of each single lattice column of the eight-limb lattice columns is 3m, the transverse bridge width along the bridge direction is 2.5+2+2.5m, the first upright steel pipe of each eight-limb lattice column adopts D630H 14 steel pipe, the first transverse web member and the first oblique web member adopt HM 200H 150 finished product section steel, the first distribution beam adopts HM588 300 finished product H section steel, the bearing beam adopts HM588 300 finished product H section steel, the pad beam adopts HM588 300 finished product H section steel, and the soil penetration depth of the steel pipe pile below the first upright steel pipe is 30 m.

4. The walking pushing support and structural jig frame combined system of claim 2, wherein: the four-limb lattice column is a four-limb lattice column with the cross section size of 2 x 2m, the second upright column steel pipe adopts a phi 426x8 steel pipe, the second transverse web member adopts 16# I-steel or channel steel, and one second oblique web member is arranged at every 2m in the height direction.

5. The walking pushing support and structural jig frame combined system of claim 1, wherein: the two bearing beams are respectively vertical to the four first distribution beams, and walking type pushing equipment is respectively fixed in the middle of the tops of the two bearing beams.

6. The walking pushing support and structural jig frame combined system of claim 1, wherein: the concrete strength grade of the concrete bearing platform foundation is not lower than C30, the thickness of the concrete bearing platform foundation is 800mm, the plane size of the concrete bearing platform foundation is that the distance from the center of the second upright steel pipe to the concrete edge is not smaller than 1000mm, a reinforcing mesh is distributed in the bearing platform, the second upright steel pipe column base is welded with embedded parts, the thickness of the embedded part steel plate is 20mm, and each embedded part is provided with 9 threaded steel bars with the diameter of 20.

7. The walking pushing support and structural jig frame combined system of claim 6, wherein: and (3) replacing, filling and compacting the brick slag with the thickness of 1.5m below the concrete bearing platform foundation, backfilling the brick slag layer by layer, wherein the thickness of each layer is not more than 30cm, and rolling and compacting the brick slag in the range of the foundation pit of the bearing platform by using a hand vibration rammer or a small-sized road roller.