CN211897881U - No. 0 block bracket - Google Patents

Abstract

The utility model provides a No. 0 block bracket, which comprises a lower embedded plate, an upper embedded plate, a split screw, a triangular truss, a bailey frame, an outer distribution beam and an inner cavity distribution beam, wherein the lower embedded plate extends along the longitudinal bridge direction and is horizontally embedded in a hollow thin-wall pier, and two opposite ends of the lower embedded plate are respectively welded with a lower lug seat; the upper embedded plate extends along the longitudinal bridge direction and is horizontally embedded in the hollow thin-wall pier, and two opposite ends of the upper embedded plate are respectively abutted against an upper lug seat; the opposite-pulling screw rod extends along the longitudinal bridge direction and horizontally penetrates through the hollow thin-wall pier, and the opposite two ends of the opposite-pulling screw rod extend out of the hollow thin-wall pier and are respectively detachably connected with an upper lug seat through a nut; each triangular truss is connected with a lower ear seat and an upper ear seat; the bailey truss is erected on the triangular truss; the outer distribution beam is erected on the bailey frame; the inner cavity distribution beam is erected on the upper embedded plate. This No. 0 piece bracket can improve bracket stability and bearing capacity.

Description

No. 0 block bracket

Technical Field

The utility model relates to a building engineering technical field, concretely relates to No. 0 piece bracket.

Background

The main pier of the continuous rigid frame bridge mainly comprises a vertical double-limb thin-wall pier and a vertical single-limb thin-wall pier, wherein the vertical double-limb thin-wall pier is a pier with two pier walls which are parallel to each other and fixedly connected with a main beam on a pier position, and the vertical single-limb thin-wall pier is a pier with only one hollow or solid straight-line-shaped rectangular section or box beam section on the pier position. Compared with the vertical double-limb thin-wall pier, the vertical single-limb thin-wall pier has better torsion resistance and strong thrust resistance, but has lower flexibility than the vertical double-limb thin-wall pier. With the continuous increase of the pier body height, the flexibility of the vertical single-limb thin-wall pier is gradually enhanced, so that the single-limb thin-wall pier is one of ideal pier body forms for a large-span continuous steel structure with a very high pier body. A common vertical single-limb thin-wall pier is a hollow thin-wall pier, but the stress performance is poor and the construction is difficult due to the structure of the hollow thin-wall pier.

When the continuous rigid frame bridge girder is constructed, the construction of the No. 0 block is generally carried out on a pier, and then the girder is formed by pouring the opposite two ends of the No. 0 block along the longitudinal bridge direction by a hanging basket cantilever pouring construction method. When the No. 0 block is constructed, the bracket needs to be fixed on the upper part of the pier body to bear the construction load of the No. 0 block. For the No. 0 block on the hollow thin-wall pier, the traditional No. 0 block bracket can not meet the requirement due to poor stress performance of the hollow thin-wall pier. Chinese patent application No. 201621002622.9 discloses a hollow mound shaped steel bracket of thin wall, it does not receive the restriction of conditions such as place, and material utilization is high and bearing capacity, and then, this bracket is applicable to the construction of bent cap, and its shaped steel bracket body passes through pre-buried steel sheet welding with the pier, and the pulling force that can bear is all less, and when it applied to No. 0 piece construction, especially No. 0 piece construction of super large bridge, can be because bearing capacity is poor not suitable.

The Chinese patent with the application number of 201120419086.3 discloses a bracket for a No. 0 block of a double-thin-wall pier continuous rigid frame bridge, which comprises three rows of preformed holes arranged on a pier body and cross beams, wherein the preformed holes on the outer side of the pier body are respectively provided with a connecting plate, a truss is erected on the connecting plates, and the cross beams are arranged on the truss; every group truss is gone up an articulated down tube, and the down tube is equipped with the balancing pole with pier shaft junction, and the balancing pole is located in the inboard third row preformed hole of pier shaft, and it has simple structure, easy dismounting, and the construction progress is fast, safe and reliable, can improve the advantage of bridge durability. However, the No. 0 block bracket is suitable for double thin-wall piers, belongs to a separated pier, needs to be provided with a balance rod for balancing the horizontal pressure of a balance inclined rod on the thin-wall pier, and the hollow thin-wall pier is an integral pier without the problem of a balance pier body; in addition, the bracket is provided with three rows of preformed holes, and the preformed holes on the outer side of the pier body are respectively provided with connecting plates, so that the number of the connecting plates is large, and the stability and the bearing capacity of the bracket are insufficient; moreover, the bracket connecting plate is connected with the pier body only through finish-rolled deformed steel bars, and when the bracket connecting plate is applied to the hollow thin-wall pier, the pier is easy to be pulled and cracked if the bracket connecting plate is improperly operated in the installation process. Therefore, there is a need for a 0-block bracket for hollow thin-walled pier continuous rigid frame bridges that improves bracket stability and load-carrying capacity.

Disclosure of Invention

The utility model discloses aim at solving one of the above-mentioned problem that exists at least, provide a can improve No. 0 piece bracket of bracket stability and bearing capacity.

A No. 0 block bracket comprises a lower embedded plate, an upper embedded plate, a split screw, a triangular truss, a Bailey frame, an outer distribution beam and an inner cavity distribution beam, wherein the lower embedded plate extends along a longitudinal bridge direction and is horizontally embedded in a pier, and two opposite ends of the lower embedded plate are respectively welded with a lower lug seat; the upper embedded plate is positioned above the lower embedded plate, extends along the longitudinal bridge direction and is horizontally embedded in the bridge pier, and two opposite ends of the upper embedded plate are respectively abutted against an upper lug seat; the opposite pull screw rods are positioned above the lower embedded plate, extend along the longitudinal bridge direction and horizontally penetrate through the bridge pier, and the opposite two ends of each opposite pull screw rod extend out of the bridge pier and are respectively detachably connected with one upper lug seat through nuts; the triangular trusses are positioned on the outer side of the bridge pier, and each triangular truss is vertically arranged and connected with one lower lug seat and one upper lug seat positioned right above the lower lug seat; the bailey truss is erected on the triangular truss; the outer distribution beam is erected on the bailey frame; the inner cavity distribution beam is erected on the upper embedded plate.

The No. 0 block bracket is connected with the triangular truss through the upper lug seats and the lower lug seats, and researches show that the upper lug seats mainly bear tension and the lower lug seats mainly bear pressure, so that the upper lug seats are connected through the split screw rods and can bear larger tension, the lower lug seats are welded on the embedded section steel to ensure that the embedded section steel has enough compression resistance, the embedded section steel is embedded between the upper lug seats and between the lower lug seats, the rigidity and the strength of a pier body can be improved through the embedded section steel, the pier body of the hollow thin-wall pier is prevented from cracking, and the stability and the bearing capacity of the bracket can be improved; meanwhile, the embedded section steel can also be used for supporting the inner cavity distribution beam, so that materials are saved, the construction difficulty is further reduced, the number of the lower and upper lug seats is small, the bearing capacity and stability of the No. 0 block bracket are further improved, and the embedded section steel is particularly suitable for construction of the No. 0 block on the hollow thin-wall pier of the super-large bridge.

Drawings

Fig. 1 is a side view of a No. 0 block bracket according to a preferred embodiment of the present invention; FIG. 2 is an enlarged view of a portion of the block bracket of No. 0 shown in FIG. 1; FIG. 3 is a front view of the block bracket No. 0 of FIG. 1; FIG. 4 is a top view of the block bracket No. 0 of FIG. 3 taken along line A-A; FIG. 5 is a side view of a cradle according to a preferred embodiment of the present invention; FIG. 6 is a cross-sectional view of the pannier shown in FIG. 5 taken along line I-I; FIG. 7 is a cross-sectional view of the pannier shown in FIG. 5 taken along line II-II; FIG. 8 is a block diagram of a load-bearing truss of the cradle of FIG. 5; FIG. 9 is a block diagram of a female triangular truss of the load-bearing truss of FIG. 8; FIG. 10 is an enlarged view of the female triangular truss of FIG. 9 at A; FIG. 11 is a top view of FIG. 10; FIG. 12 is an enlarged view of the female triangular truss of FIG. 9 at B; FIG. 13 is a top view of FIG. 12; FIG. 14 is an enlarged view of the female triangular truss of FIG. 9 at C; FIG. 15 is a cross-sectional view taken along line III-III of FIG. 14; FIG. 16 is a block diagram of a male triangular truss of the load-bearing truss of FIG. 8; FIG. 17 is an enlarged view of the female triangular truss of FIG. 16 at D; FIG. 18 is a top view of FIG. 17; FIG. 19 is an enlarged view of the female triangular truss of FIG. 16 at E; FIG. 20 is a top view of FIG. 19; FIG. 21 is an enlarged view of the female triangular truss of FIG. 16 at F; FIG. 22 is a cross-sectional view taken along line IV-IV of FIG. 21; FIG. 23 is a partial block diagram of the hanging basket of FIG. 5; FIG. 24 is a cross-sectional view of the rail of the traveling carriage of FIG. 23; FIG. 25 is a block diagram of the boat in the cradle of FIG. 23; FIG. 26 is a right side view of the planing boat of FIG. 25; FIG. 27 is a right side view of the anti-snag safety device of the hanging basket of FIG. 23; FIG. 28 is a block diagram of a spacer in the hanging basket of FIG. 23; fig. 29 is a left side view of a first wedge block of the spacer block of fig. 28; fig. 30 is a right side view of a second wedge block of the spacer block of fig. 28; FIG. 31 is a block diagram of a trolley wheel assembly of the cradle of FIG. 23; FIG. 32 is a cross-sectional view taken along line V-V of FIG. 31;

in the drawings: 110. a lower embedded plate; 130. an upper embedded plate; 200. oppositely pulling the screw rod; 310. a lower ear seat; 330. an upper ear seat; 400. a triangular truss; 500. a bailey frame; 610. an outer distribution beam; 630. an inner cavity distribution beam; 700. a limiting bulge; 800. a connecting rod; 910. a flange plate support frame; 930. a support beam; 2. a traveling system; 21. a track; 211. a base; 213. a guide rail; 2131. a connecting plate; 2133. an upper wing plate; 2135. a lower wing plate; 23. a walking trolley; 231. a frame; 233. a traveling wheel; 24. a boat is glided; 241. a boat slide support; 243. a slide plate; 245. a limiting plate; 25. a walking jack; 27. cushion blocks; 271. a first wedge block; 273. a second wedge block; 275. adjusting the screw rod; 276. locking the nut; 28. a reverse hook safety device; 281. a fixed mount; 282. hooking; 3. a load-bearing truss assembly; 31. a load-bearing truss; 311. a female triangular truss; 3111. a first straight-sided bar; 3112. a second straight-sided bar; 3113. a sloping pole; 3115. a first reinforcement bar; 3117. a second reinforcement bar; 312. a male triangular truss; 3121. a first right-angle bar; 3123. a second right-angle bar; 3124. an oblique rod; 3125. a plug-in part; 3126. inserting pin holes; 3127. a first stiffener; 3128. a second stiffener; 313. a main truss tie rod; 32. a front transverse connecting rod; 33. a rear transverse connecting rod; 34. a scissor support; 35. a first mounting member; 351. a first mounting plate; 3512. a first pin hole; 36. a second mount; 361. a second mounting plate; 362. a fixed part; 363. a limiting part; 364. installing a cover plate; 365. mounting pin holes; 37. a third mount; 371. a socket; 372. a third mounting plate; 374. installing a pin hole; 38. a first connecting member; 381. a first side plate; 3811. a second pin hole; 39. a second connecting member; 391. a second side plate; 394. connecting the cover plate; 395,396,303,306,71,73 and a pin shaft; 30. a third connecting member; 301. a third side plate; 305. a fixing pin hole; 4. a front cross member; 42. a sling; 5. a sliding beam; 6. a bottom beam; 61. a front boom; 63. a rear boom; 65. a suspension rod; 8. a skid beam connector; 82. a connecting frame; 9. a sliding beam and roller assembly; 91. a roller bracket; 93. a roller; 10. a shoulder pole beam.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When a component is referred to as being "connected" to another component, it can be directly connected to the other component or intervening components may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1 to 4, a preferred embodiment of the present invention provides a No. 0 block bracket, which includes a lower pre-embedded plate 110, an upper pre-embedded plate 130, a counter-pulling screw 200, a lower ear seat 310, an upper ear seat 330, a triangular truss 400, a bailey frame 500, an outer distribution beam 610 and an inner cavity distribution beam 630.

The lower embedded plate 110 extends in the longitudinal direction and is horizontally embedded in a pier, which is a hollow thin-walled pier in the present embodiment. Opposite ends of the lower pre-buried plate 110 are respectively welded to a lower ear mount 310. The upper embedded plate 130 is located above the lower embedded plate 110, the upper embedded plate 130 extends along the longitudinal bridge direction and is horizontally embedded in the bridge pier, and two opposite ends of the upper embedded plate 130 are respectively abutted to an upper lug seat 330. Preferably, the upper embedment plate 130 and the lower embedment plate 110 are steel sections. The counter-pulling screw rod 200 is located the top of pre-buried board 110 down, and the counter-pulling screw rod 200 is to extending along the longitudinal bridge to wear to establish the pier horizontally, outside the relative both ends of counter-pulling screw rod 200 all stretched out the pier, and pass through nut (not marking) with an upper ear seat 330 respectively and can dismantle the connection, specifically do: the end part of the counter-pull screw rod 200, which is positioned outside the pier, penetrates through the upper lug seat 330, and the nut is in threaded connection with the counter-pull screw rod 200 and abuts against the side surface, facing away from the pier, of the upper lug seat 330. In the present embodiment, the number of the counter-pulling screws 200 is plural, and the plural counter-pulling screws 200 are respectively located on opposite sides of the upper embedded plate 130.

The triangular trusses 400 are located outside the bridge pier, and each triangular truss 400 is vertically disposed and connected to a lower ear mount 310 and an upper ear mount 330 located right above the lower ear mount 310. In this embodiment, the triangular truss 400 is detachably connected to the upper ear mount 330 and the lower ear mount 310 by pins. Triangular truss 400 is connected with last ear seat 330, lower ear seat 310 can be dismantled, goes up ear seat 330 and can dismantle with the pier shaft through split screw 200 and be connected, and after the construction of No. 0 piece was accomplished, triangular truss 400, last ear seat 330 and split screw 200 all can reuse, are favorable to reduce cost. The bailey truss 500 is erected on the triangular truss 400. The outer distribution beam 610 is erected on the bailey truss 500. The inner cavity distribution beam 630 is mounted on the upper embedment plate 130. The outer distribution beams 610 and the inner cavity distribution beams 630 are used for building templates for casting.

In this embodiment, a limiting protrusion 700 is further formed on a side of the triangular truss 400 away from the upper ear seat 330, which can limit the bailey truss 500, thereby further improving the safety of production. Two adjacent triangular trusses 400 are also connected together by a connecting rod 800 to further improve the integrity of the bracket, and in this embodiment, the opposite ends of each connecting rod 800 are detachably connected to the triangular trusses 400 by bolts. The No. 0 block bracket further includes a plurality of flange plate support frames 910 and support beams 930, the plurality of flange plate support frames 910 are respectively installed on opposite sides of the bridge pier along the transverse bridge, and the support beams 930 are erected on the flange plate support frames 910. Formworks may be erected on the support beams 930 for casting the flange plates forming the main beams. Because the stress at the flange plate is small, the connection mode between the flange plate support frame 910 and the pier can be a support frame fixing mode in the prior art, for example, the flange plate support frame can be connected with the pier body through an embedded plate embedded in the pier body. The structure of the flange plate support frame 910 may be the same as that of the triangular truss 400, and other support frame structures in the prior art may also be used.

The embodiment also provides a construction method of the hollow thin-wall pier continuous rigid frame bridge girder, which comprises the following steps:

s1: a No. 0 block bracket is built on the hollow thin-wall pier to carry out the construction of a No. 0 block, and the construction method comprises the following steps:

installation of the lower embedded plate 110: pre-burying a lower pre-buried plate 110 during the construction of the hollow thin-wall pier, wherein the lower pre-buried plate 110 extends along the longitudinal bridge direction and is horizontally pre-buried in the hollow thin-wall pier, so that two opposite ends of the lower pre-buried plate 110 are respectively welded with a lower lug seat 310;

mounting the upper embedded plate 130: the upper pre-embedded plate 130 is pre-embedded during the construction of the hollow thin-wall pier, the upper pre-embedded plate 130 is positioned above the lower pre-embedded plate 110, the upper pre-embedded plate 130 extends along the longitudinal bridge direction and is horizontally pre-embedded in the hollow thin-wall pier, and two opposite ends of the upper pre-embedded plate 130 respectively correspond to an upper lug seat 330;

installation of the split screw 200: the counter-pulling screw rod 200 is positioned above the lower embedded plate 110, the counter-pulling screw rod 200 extends along the longitudinal bridge direction and horizontally penetrates through the hollow thin-wall pier, two opposite ends of the counter-pulling screw rod 200 extend out of the hollow thin-wall pier and are detachably connected with an upper lug seat 330 through nuts respectively, and the nuts are locked to enable the upper lug seat 330 to abut against the upper embedded plate 130; the hollow thin-wall pier is provided with a through hole for the counter-pulling screw rod 200 to pass through;

installation of the triangular truss 400: the triangular trusses 400 are positioned on the outer sides of the hollow thin-wall piers, and each triangular truss 400 is vertically arranged and connected with a lower lug seat 310 and an upper lug seat 330 positioned right above the lower lug seat 310; in this embodiment, the triangular truss 400 is detachably connected to the lower ear mount 310 and the upper ear mount 330 by a pin;

installation of bailey truss 500: the bailey truss 500 is erected on the triangular truss 400; in this embodiment, the bailey truss 500 is detachably connected to the triangular truss 400 by a U-shaped limit buckle; the structure of the U-shaped limiting buckle belongs to the prior art, and is not described herein for omitting space;

installation of outer distribution beams 610: the outer distribution beam 610 is erected on the bailey truss 500; in this embodiment, the outer distribution beam 610 is detachably connected to the bailey frame 500 by a U-shaped limit buckle;

installation of the inner cavity distribution beam 630: the inner cavity distribution beam 630 is erected on the upper embedded plate 130 in a welding mode and the like;

installing a template: installing templates on the outer distribution beam 610 and the inner cavity distribution beam 630, and pouring concrete on the templates to form a No. 0 block;

s2: and (3) dismantling the bracket of the No. 0 block, building a hanging basket, and pouring along the longitudinal bridge direction at the two opposite ends of the No. 0 block to form a main beam by a hanging basket cantilever pouring construction method.

Specifically, the removal of the 0 # block bracket comprises the following steps: after the template on the outer distribution beam 610, the outer distribution beam 610 and the beret frame 500 are removed from the triangular truss 400 (the removal of the template, the outer distribution beam 610 and the beret frame 500 belongs to the prior art, and is not described herein for brevity), pulling out the pin shaft connecting the upper ear mount 330 with the triangular truss 400 and the pin shaft connecting the lower ear mount 310 with the triangular truss 400, removing the triangular truss 400 from the upper ear mount 330 and the lower ear mount 310, unscrewing the nuts, removing the upper ear mount 330 from the split screw 200, and then pulling out the split screw 200 from the hollow thin-walled pier; the panel support frame 910 is removed from the pier body using a cutter.

Specifically, referring to fig. 8 to 22, in the present embodiment, the triangular truss 400 includes a plurality of female triangular trusses 311 and a plurality of male triangular trusses 312.

The female-head triangular truss 311 is a right-angled triangular frame body and comprises a first straight-edge bar 3111, a second straight-edge bar 3112 and a bevel-edge bar 3113, one end of the first straight-edge bar 3111 and one end of the second straight-edge bar 3112 are welded with a first installation piece 35, the first straight-edge bar 3111 and the second straight-edge bar 3112 are vertically welded, and the first installation piece 35 is detachably connected with the upper ear seat 330 through a pin shaft; the other end of the first straight bar 3111 is welded to one end of the bevel bar 3113 and both are welded to a second mounting member 36; the other end of second straight flange pole 3112 and the other end welding of hypotenuse pole 3113 and all weld with a third installed part 37, are equipped with socket 371 in the third installed part 37, and third installed part 37 passes through the round pin hub detachable connection with lower ear seat 310. Bevel lever 3113 is detachably connected to connecting rod 800 by a bolt. The bailey frame 500 is erected on the first straight bar 3111.

The male-head triangular truss 312 is a right-angled triangular frame body and comprises a first right-angled rod 3121, a second right-angled rod 3123 and an inclined rod 3124, one end of the first right-angled rod 3121 and one end of the second right-angled rod 3123 are both welded with a first connecting piece 38, the first right-angled rod 3121 and the second right-angled rod 3123 are vertically welded, and the first connecting piece 38 is detachably connected with the upper lug seat 330 through a pin shaft; the other end of the first right-angle bar 3121 and one end of the diagonal bar 3124 are welded and all welded to a second connecting piece 39; the other end of second right-angle pole 3123 and the other end of diagonal pole 3124 all with a third connecting piece 30 welding, and the one end that first connecting piece 38 was kept away from to second right-angle pole 3123 and the one end welding of diagonal pole 3124 keeping away from second connecting piece 39 and all stretch out outside third connecting piece 30 in order to form a grafting portion 3125, and grafting portion 3125 can dismantle with lower ear seat 310 through the round pin axle and be connected. The diagonal bar 3124 is detachably connected to the connection bar 800 by bolts. The bailey bracket 500 is erected on the first right-angle bar 3121.

When the hanging basket is built, the inserting part 3125 of a male triangular truss 312 is inserted into the inserting hole 371 of a female triangular truss 311, and the inserting part 3125 is connected with the third mounting piece 37 of the female triangular truss 311 through a bolt; providing a main truss draw bar 313, and connecting the two opposite ends of the main truss draw bar 313 with the first installation part 35 of the female triangular truss 311 and the first connecting part 38 of the male triangular truss 312 through pin shafts 71 and 73 respectively, so as to form the bearing truss 31 of the cradle, which is beneficial to turnover and reduces the cost; since the triangular truss 400 of the bracket is of a modular design, the positioning accuracy of the bracket can be improved.

Referring to fig. 5, the cradle includes a traveling system 2, a truss assembly 3, a front beam 4, a sliding beam 5, and a bottom beam 6.

Referring to fig. 23, in the present embodiment, the traveling system 2 includes a rail 21, a traveling carriage 23, a ship 24, and a traveling jack 25. The rail 21 is used for anchoring on the top surface of the bridge; the walking trolley 23 and the sliding boat 24 are arranged on the track 21 in a sliding way and are arranged at intervals; the traveling jack 25 is installed on the rail 21 and connected to the slide boat 24.

Referring to fig. 24, in the present embodiment, the rail 21 includes a base 211 and two guide rails 213. The base 211 is anchored to the top surface of the bridge, and two guide rails 213 are fixed to opposite sides of the base 211 in parallel. The guide rail 213 includes a connecting plate 2131, an upper wing plate 2133 and a lower wing plate 2135, the upper wing plate 2133 and the lower wing plate 2135 are respectively connected to the top and the bottom of the connecting plate 2131, and the connecting plate 2131 is fixedly connected to the base 211. In the present embodiment, a spacer 27 is further laid between the base 211 and the bridge, and the height of the rail 21 is adjusted by the spacer 27, thereby ensuring that the rail 21 is horizontal. In the prior art, I-shaped steel is usually adopted as a cushion block, and in actual working conditions, the leveling conditions of all parts of the top surface of the bridge are different, and when the I-shaped steel is adopted as the cushion block 27, the rail 21 can be leveled only by additionally arranging a cushion plate above or below the I-shaped steel, so that the construction efficiency is low. Referring to fig. 28 to 30, in the present embodiment, the spacer 27 is a wedge-shaped spacer, and specifically, it includes a first wedge 271, a second wedge 273, an adjusting screw 275 and two locking nuts 276. The inclined surface of the first wedge block 271 is in sliding contact with the inclined surface of the second wedge block 273; the first wedge-shaped block 271 and the second wedge-shaped block 273 are both sleeved on the adjusting screw 275 in a sliding manner through the kidney-shaped holes; both the locking nuts 276 are in threaded connection with the adjusting screw 275, and one of the locking nuts 276 is located on the side of the first wedge block 271 facing away from the second wedge block 273, and the other locking nut 276 is located on the side of the second wedge block 273 facing away from the first wedge block 271. The base 211 and the lower wing plate 2135 are supported on the top surface of the second wedge 273. When the device is used, the locking nut 276 is unscrewed, so that the relative position of the first wedge block 271 and the second wedge block 273 can be adjusted, and the purpose of adjusting the height of the track 21 according to the actual working condition is further achieved. Compared with the scheme that I-shaped steel is adopted as the cushion block 27 in the prior art, the construction is convenient.

The traveling carriage 23 is slidably mounted on two guide rails 213, and includes a frame 231 and a plurality of traveling wheels 233 rotatably mounted on the frame 231. The frame 231 is connected with the bearing truss assembly 3; the plurality of road wheels 233 are slidably connected to the two guide rails 213, and each road wheel 233 is in rolling contact with the bottom surface of the upper wing plate 2133 of the corresponding guide rail 213. The rolling contact between the travelling wheels 233 and the bottom surface of the upper wing plate 2133 not only can guide the movement of the travelling trolley 23, but also has the function of preventing the hanging basket from overturning. It can be understood that the number of the road wheels 233 can be set according to actual working conditions.

Referring to fig. 25 and 26, the slide boat 24 is slidably mounted on the two guide rails 213. In this embodiment, the slide boat 24 includes a slide boat support 241 and two slide plates 243 spaced apart from each other and mounted to the bottom of the slide boat support 241. The boat support 241 is connected to the load truss assembly 3, and the two sliding plates 243 are slidably supported on the upper wing plates 2133 of the two guide rails 213, respectively. A stop plate 245 is further fixed to each of the two opposite sides of each of the sliding plates 243, and the two stop plates 245 of each of the sliding plates 243 are respectively located on two opposite sides of the corresponding upper wing plate 2133 to guide the movement of the sliding boat 24. The traveling jack 25 is installed on the base 211 and connected to the boat support 241 to push the boat 24 along the length direction of the guide rail 213.

Referring to fig. 27, in the present embodiment, the walking system 2 further includes an anti-hooking safety device 28. The anti-hooking safety device 28 is located between the walking trolley 23 and the gliding boat 24. The anti-hooking safety device 28 includes a fixing frame 281 and two hooks 282 installed at the bottom of the fixing frame 281 at intervals. The fixed frame 281 is connected with the load-bearing truss assembly 3, and the two hooks 282 are respectively and slidably hooked on the upper wing plates 2133 of the two guide rails 213. Through the cooperation of couple 282 with upper wing plate 2133, can further prevent to hang the basket and overturn, improve the security of production.

Referring to fig. 6 to 7, the load-bearing truss assembly 3 includes a plurality of load-bearing trusses 31 spaced apart along the transverse bridge direction. The front ends of the plurality of bearing trusses 31 are connected together through a front cross connecting rod 32, the rear ends of the plurality of bearing trusses 31 are connected together through a rear cross connecting rod 33, and the middle parts of the plurality of bearing trusses 31 are connected through a cross brace 34. Each load-bearing truss 31 is mounted on a walking system 2, and the rear end of each load-bearing truss 31 is also anchored to the top of the bridge.

Referring to fig. 12 to 13, the first mounting member 35 includes two first mounting plates 351 disposed opposite to each other, one end of a first straight bar 3111 extends between the two first mounting plates 351 and is welded to inner walls of the two first mounting plates 351, and one end of a second straight bar 3112 is inserted between the two first mounting plates 351 and is welded to inner walls of the first mounting plates 351. The two first mounting plates 351 are correspondingly provided with first pin holes 3512 for the insertion of the pin shafts. When the female triangular truss 311 is applied to the bracket, a pin (not labeled) is inserted through the first pin hole 3512 and the upper ear mount 330 to detachably connect the female triangular truss 311 and the upper ear mount 330.

Referring to fig. 10 and 11, the second mounting member 36 includes two second mounting plates 361 and a mounting cover 364 disposed opposite to each other. Each second mounting plate 361 comprises a fixing part 362 and a limiting part 363 connected with the fixing part 362, and one end of the first straight bar 3111, which is far away from the first mounting part 35, is inserted between the fixing parts 362 of the two second mounting plates 361 and welded with the fixing parts 362 of the two second mounting plates 361; one end of the bevel lever 3113 is inserted between the fixing parts 362 of the two second mounting plates 361 and welded to the two fixing parts 362, and the limiting part 363 is located at one end of the bevel lever 3113 facing away from the third mounting part 37 to form a limiting protrusion 700. The limiting parts 363 of the two second mounting plates 361 are correspondingly provided with mounting pin holes 365 for the pin shafts to be inserted. A reinforcing plate (not shown) is further disposed between the two second mounting plates 361 to further improve the strength of the triangular truss 400. The mounting cover 364 is fixed to the side of the two limiting portions 363 facing away from the beveled rod 3113.

Referring also to fig. 14-15, the third mounting member 37 includes two oppositely disposed third mounting plates 372; one end of the second straight-edge rod 3112, which is far away from the first mounting piece 35, extends into the space between the two third mounting plates 372 and is welded with the inner walls of the two third mounting plates 372; one end of the straight-edge bar 3113, which is far away from the second mounting piece 36, extends into the space between the two third mounting plates 372 and is welded with the inner walls of the two third mounting plates 372 and the second straight-edge bar 3112; a socket 371 is defined between the two third mounting plates 372, and the socket 371 is located at the end of the second straight-side bar 3112 facing away from the first mounting element 35. The two third mounting plates 372 are correspondingly provided with mounting pin holes 374, and the mounting pin holes 374 are communicated with the sockets 371. When the female triangular truss 311 is applied to the bracket, a pin (not shown) passes through the mounting pin hole 374 and the lower ear mount 310 to detachably connect the female triangular truss 311 and the lower ear mount 310 together.

Referring to fig. 16 and fig. 19-20, the first connecting member 38 includes two first side plates 381 disposed opposite to each other; the first right-angle rod 3121 extends between the two first side plates 381 and is welded with the inner walls of the two first side plates 381; one end of the second right-angle bar 3123 is inserted between the two first side plates 381 and welded to the inner wall of the first side plate 381 and the first right-angle bar 3121. The two first side plates 381 are correspondingly provided with second pin holes 3811 for inserting pins, and the second pin holes 3811 are located at one end of the first right-angle rod 3121, which faces away from the second connecting piece 39. When the male triangular truss 312 is applied to the bracket, a pin (not labeled) is inserted through the second pin hole 3811 and the upper ear mount 330 to detachably connect the male triangular truss 312 and the upper ear mount 330.

Referring to fig. 17 and 18, the second connecting member 39 includes two second side plates 391 and a connecting cover plate 394. The structure of the second side plate 391 is the same as that of the second mounting plate 361, and both include a fixing portion 362 and a limiting portion 363 connected to the fixing portion 362. One end of the first right-angle bar 3121, which is away from the first connecting member 38, is inserted between the fixing parts 362 of the two second side plates 391 and welded with the two fixing parts 362, and one end of the diagonal bar 3124 is inserted between the fixing parts 362 of the two second side plates 391 and welded with the two fixing parts 362 and the first right-angle bar 3121; the connecting cover plate 394 is fixed to one side of the two limiting portions 363, which faces away from the diagonal rod 3124, for anchoring with the bridge. The limiting part 363 of the second connecting member 39 is detachably connected to the frame 231 of the traveling carriage 23 via a pin 395, and is detachably connected to the fixing frame 281 of the anti-hooking safety device 28 via a pin 396.

Referring to fig. 21 and 22, the third connecting member 30 includes two third side plates 301 disposed opposite to each other, a second right-angle bar 3123 penetrates through a space surrounded by the two third side plates 301 and is welded to inner walls of the two third side plates 301, and an inclined bar 3124 penetrates through the space surrounded by the two third side plates 301 and is welded to inner walls of the two third side plates 301. The end of the second right-angle rod 3123 far from the first connecting piece 38 and the end of the inclined rod 3124 far from the second connecting piece 39 are welded and both extend out of the third connecting piece 30 to form the inserting connection portion 3125, and an inserting connection pin hole 3126 is opened on the inserting connection portion 3125 in a penetrating manner. The inserting portion 3125 is inserted into the socket 371, and is connected to the female triangular truss 311 through the pin shaft 303, specifically: the pin 303 passes through the socket pin hole 3126 of the socket portion 3125 and the mounting pin hole 374 of the third mounting member 37 to detachably connect the male-head truss 312 and the female-head truss 311 together.

The bearing truss 31 and the sliding boat 24 are detachably connected through pin shafts 306 and 303, and specifically: the two third side plates 301 and the inclined rod 3124 are also correspondingly provided with fixing pin holes 305, and pin shafts 306 are inserted into the fixing pin holes 305; the pin 306 passes through the bracket 241 and the fixing pin 305, and the pin 303 passes through the socket pin 3126 of the socket portion 3125, the mounting pin 374 of the third mounting member 37, and the bracket 241, so as to detachably connect the bearing truss 31 and the boat 24.

The first straight-sided bar 3111, the second straight-sided bar 3112, the bevel-sided bar 3113, the first mounting element 35, the second mounting element 36 and the third mounting element 37 are connected as a whole by welding, forming a modular structure. The first right-angle rod 3121, the second right-angle rod 3123, the diagonal rod 3124, the first connecting member 38, the second connecting member 39, and the third connecting member 30 are connected as a whole by welding, forming a modular structure.

In this embodiment, the female triangular truss 311 further includes a first stiffener 3115 and a second stiffener 3117, the first stiffener 3115 and the second stiffener 3117 are disposed in a space surrounded by the first straight-sided bar 3111, the second straight-sided bar 3112 and the bevel-sided bar 3113, two opposite ends of the first stiffener 3115 are welded to the first straight-sided bar 3111 and the bevel-sided bar 3113, the second stiffener 3117 is perpendicular to the first stiffener 3115, and two opposite ends of the second stiffener 3117 are welded to the bevel-sided bar 3113 and the second straight-sided bar 3112. The strength of the female triangular truss 311 can be improved by providing the first reinforcing bar 3115 and the second reinforcing bar 3117. The male-head triangular truss 312 further comprises a first stiffening rod 3127 and a second stiffening rod 3128, the first stiffening rod 3127 and the second stiffening rod 3128 are all disposed in a space surrounded by the first right-angle rod 3121, the second right-angle rod 3123 and the diagonal rod 3124, two opposite ends of the first stiffening rod 3127 are welded with the first right-angle rod 3121 and the diagonal rod 3124 respectively, the second stiffening rod 3128 is perpendicular to the first stiffening rod 3127, and two opposite ends of the second stiffening rod 3128 are welded with the diagonal rod 3124 and the second right-angle rod 3123 respectively. The strength of the male triangular truss 312 can be improved by providing the first and second stiffening rods 3127 and 3128.

One end of the main truss draw bar 313 is detachably connected with the first mounting part 35 of the female triangular truss 311 through a pin shaft 71, and the other end of the main truss draw bar 313 is detachably connected with the first connecting part 38 of the male triangular truss 312 through a pin shaft 73, specifically: one end of the main truss draw bar 313 extends between the two first mounting plates 351, and the pin shaft 71 passes through the first pin hole 3512 and the main truss draw bar 313 so as to connect one end of the main truss draw bar 313 and the first mounting piece 35 together; the end of the main beam brace 313 remote from the first mounting member 35 extends between the two first side plates 381, and the pin 73 passes through the second pin hole 3811 and the main beam brace 313 to connect the main beam brace 313 and the first connecting member 38 together.

The front transverse connecting rod 32 is connected with the bevel edge rods 3113 of the bearing trusses 31; the bearing truss component 3 comprises two groups of cross braces 34, wherein one group of cross braces 34 is arranged on the second straight side bar 3112 of the female triangular truss 311, and the other group of cross braces 34 is arranged on the main truss draw bar 313; the rear transverse bar 33 connects the first right-angle bars 3121 of several load-bearing girders 31. In this embodiment, the front cross-bar 32 is detachably connected to the hypotenuse bar 3113 by bolts, one set of the cross-braces 34 is detachably connected to the second straight-side bar 3112 by bolts, the other set of the cross-braces 34 is detachably connected to the main girder stay 313 by bolts, and the rear cross-bar 33 is detachably connected to the first straight-side bar 3121 by bolts. The detachable connection is realized through bolts, so that the female triangular truss 311 and the male triangular truss 312 can be detached from the bearing truss 31, and the subsequent turnover utilization is facilitated.

Referring to fig. 5 to 7 again, the front cross member 4 is parallel to the arrangement direction of the plurality of load-bearing trusses 31, and is connected to the front ends of the load-bearing trusses 31 through the hanging straps 42. In the present embodiment, the front cross member 4 is suspended from the mounting pin holes 365 (fig. 10) of the second mounting plate 361 by the hanging straps 42. The hanging strip 42 is made of steel, one end of which is connected with the mounting pin hole 365 by a hanging strip pin (not marked), and the other end is fixed with the front beam 4.

The sliding beam 5 is parallel to the longitudinal direction of the bridge and is connected with the bridge in a sliding way, and the concrete steps are as follows: the sliding beam 5 is connected with the bridge in a sliding way through a sliding beam connector 8. The slide beam connector 8 comprises a connecting frame 82, the connecting frame 82 is hung on the bridge through screw steel, and the slide beam 5 slidably penetrates through the connecting frame 82. In this embodiment, the skid beams 5 are also connected to the bridge through the skid beam-roller assemblies 9. Referring to fig. 31 and 32, the sliding beam and roller assembly 9 includes a roller bracket 91 and a roller 93 mounted on the roller bracket 91, the roller bracket 91 is suspended on the bridge through a screw steel, and the sliding beam 5 slidably passes through the roller bracket 91 and is in rolling contact with the roller 93. The sliding beam connector 8 can provide supporting force for the sliding beam 5, and the sliding beam roller assembly 9 can enable the sliding beam 5 to move more smoothly. The sliding beam 5 is divided into an outer sliding beam and an inner sliding beam, wherein the outer sliding beam is positioned outside the bridge, and the inner sliding beam 5 is positioned in the bridge hole.

The bottom beam 6 is positioned on the side of the sliding beam 5 opposite to the front cross beam 4, the front end of the bottom beam 6 is suspended on the front cross beam 4 through a front suspension rod 61, in the embodiment, one end of the front suspension rod 61 is in pin joint with the front cross beam 4, and the front end of the bottom beam 6 is in pin joint with the free tail end of the front suspension rod 61. Specifically, in the present embodiment, the rear end of the bottom beam 6 is suspended on the outer slide beams 5 by the rear suspension bar 63, the rear end of the bottom beam 6 is suspended on the outer slide beams 5 by the shoulder pole beam 10, the shoulder pole beam 10 is perpendicular to the outer slide beams 5, the opposite ends of the shoulder pole beam 10 are respectively suspended on the two outer slide beams 5, one end of the rear suspension bar 63 is pin-connected to the rear end of the bottom beam 6, and the other end of the rear suspension bar 63 is suspended on the shoulder pole beam 10. The rear end of the bottom beam 6 is also connected to the bridge through a suspension rod 65, and in this embodiment, one end of the suspension rod 65 is anchored to the bridge, and the other end of the suspension rod 65 is pinned to the rear end of the bottom beam 6. In the present embodiment, the front boom 61, the rear boom 63, and the suspension rod 65 are all made of deformed steel.

The front ends of the bearing trusses 31 arranged along the transverse bridge direction are connected together through the front transverse connecting rods 32, the rear ends of the bearing trusses 31 are connected together through the rear transverse connecting rods 33, the middle parts of the bearing trusses 31 are connected through the cross braces 34, the stability of the whole hanging basket in the transverse bridge direction and the longitudinal bridge direction is enhanced, and the hanging basket is suitable for cantilever pouring construction of an extra-large bridge. Above-mentioned hang basket, each bearing truss 31 includes female first triangle truss 311, male first triangle truss 312 and connects female first triangle truss 311 and the main truss pull rod 313 of male first triangle truss 312, and wherein, female first triangle truss 311, male first triangle truss 312 all adopt modular structure design, and the installation is demolishd efficiently, has further improved the stability of hanging the basket through modular design. In addition, the female triangular truss 311 and the male triangular truss 312 are integrally designed by modularization according to the triangular truss structure, and the female triangular truss 311, the male triangular truss 312 and the main truss draw bar 313 are also connected to form the triangular truss structure, so that the bending resistance of the bearing truss 31 can be improved, and the stability is higher. According to the hanging basket, each modular structure is connected through the pin joint, additional bending moment of the node can be released, and the problem of stress concentration among structural nodes caused by large segment weight in an extra-large bridge is solved. According to the hanging basket, the main truss pull rods 313 with different lengths are replaced, so that the hanging basket is suitable for continuous rigid frame bridges with different spans, different weights and different widths, and the applicability is high. According to the hanging basket, the front end of the bottom beam 6 is in pin joint with one end of the front suspension rod 61, the other end of the front suspension rod 61 is in pin joint with the front cross beam 4, the front cross beam 4 is in pin joint with the front end of the bearing truss 31 through the hanging strip 42, and the rear end of the bottom beam 6 is in pin joint with the rear suspension rod 63, so that the front suspension rod 61 and the hanging strip 42 can be subjected to self-adaptive adjustment according to the stress of the bottom beam 6, the front suspension rod 61 and the hanging strip 42 are ensured to be vertical, the production safety is improved, and potential safety hazards are reduced. Meanwhile, the rear end of the bottom beam 6 is connected with the outer sliding beams 5 through the carrying pole beam 10, and the two opposite ends of the carrying pole beam 10 are respectively hung on the two outer sliding beams 5, so that the carrying pole beam 10 can balance stress, and the production safety is improved.

It will be appreciated that the front cross member 4 may also be anchored to the front end of the load-bearing truss 31, the front end of the bottom beam 6 may be fixedly connected to the front suspension bar 61, and the rear end of the bottom beam 6 may be fixedly connected to the rear suspension bar 63.

It is understood that other prior art configurations of the travel system 2 for the cradle may be used.

It can be understood that the No. 0 block bracket is also suitable for the No. 0 block construction on other bridge piers.

The above description is for the detailed description of the preferred possible embodiments of the present invention, but the embodiments are not intended to limit the scope of the present invention, and all equivalent changes or modifications accomplished under the technical spirit suggested by the present invention should fall within the scope of the present invention.

Claims (10)

1. A No. 0 block bracket is characterized by comprising

The lower embedded plate (110) extends along the longitudinal bridge direction and is horizontally embedded in the bridge pier, and two opposite ends of the lower embedded plate (110) are respectively welded with a lower lug seat (310);

the upper embedded plate (130) is positioned above the lower embedded plate (110), the upper embedded plate (130) extends along the longitudinal bridge direction and is horizontally embedded in the pier, and two opposite ends of the upper embedded plate (130) are respectively abutted against an upper lug seat (330);

the split screw (200) is positioned above the lower embedded plate (110), the split screw (200) extends along the longitudinal bridge direction and horizontally penetrates through a pier, and two opposite ends of the split screw (200) extend out of the pier and are respectively detachably connected with one upper lug seat (330) through nuts;

the triangular trusses (400) are positioned on the outer sides of the piers, and each triangular truss (400) is vertically arranged and connected with one lower lug seat (310) and one upper lug seat (330) positioned right above the lower lug seat (310);

the bailey frames (500) are erected on the triangular trusses (400);

an outer distribution beam (610), wherein the outer distribution beam (610) is erected on the Bailey truss (500); and

the inner cavity distribution beam (630) is erected on the upper embedded plate (130).

2. The No. 0 block bracket of claim 1, further comprising a plurality of flange plate support frames (910) and support beams (930), wherein the plurality of flange plate support frames (910) are respectively installed at opposite sides of the bridge pier along the transverse bridge, and the support beams (930) are erected on the flange plate support frames (910).

3. A block bracket of claim 1, wherein the triangular truss (400) further defines a stop protrusion (700) on a side thereof remote from the upper ear mount (330).

4. The No. 0 block bracket of claim 1, characterized in that the triangular truss (400) is detachably connected with the upper ear seat (330) and the lower ear seat (310) by pin shafts.

5. A No. 0 block bracket as claimed in claim 1, wherein adjacent two triangular trusses (400) are further connected together by a connecting rod (800), and opposite ends of each connecting rod (800) are detachably connected to the triangular trusses (400) by bolts.

6. The No. 0 block bracket of claim 1, wherein the triangular trusses (400) comprise a plurality of female triangular trusses (311) and a plurality of male triangular trusses (312),

the female-head triangular truss (311) comprises a first straight-side rod (3111), a second straight-side rod (3112) and a bevel-side rod (3113), one end of the first straight-side rod (3111) and one end of the second straight-side rod (3112) are welded with a first installation part (35), the first straight-side rod (3111) and the second straight-side rod (3112) are vertically welded, and the first installation part (35) is detachably connected with the upper ear seat (330) through a pin shaft; the other end of the first straight-side rod (3111) is welded with one end of the inclined-side rod (3113) and is welded with a second mounting piece (36); the other end of the second straight-edge rod (3112) is welded with the other end of the inclined-edge rod (3113) and is welded with a third mounting piece (37), a socket (371) is arranged in the third mounting piece (37), and the third mounting piece (37) is detachably connected with the lower ear seat (310) through a pin shaft;

the male-head triangular truss (312) comprises a first right-angle rod (3121), a second right-angle rod (3123) and an inclined rod (3124), one end of the first right-angle rod (3121) and one end of the second right-angle rod (3123) are both welded with a first connecting piece (38), the first right-angle rod (3121) and the second right-angle rod (3123) are vertically welded, and the first connecting piece (38) is detachably connected with the upper lug seat (330) through a pin shaft; the other end of the first right-angle rod (3121) and one end of the diagonal rod (3124) are welded and are all welded on a second connecting piece (39); the other end of the second right-angle rod (3123) and the other end of the inclined rod (3124) are all welded with a third connecting piece (30), and the one end of the second right-angle rod (3123) far away from the first connecting piece (38) and the one end of the inclined rod (3124) far away from the second connecting piece (39) are welded and all extend out of the third connecting piece (30) to form a splicing part (3125), and the splicing part (3125) is detachably connected with the lower ear seat (310) through a pin shaft.

7. The No. 0 block bracket of claim 6, wherein the female triangular truss (311) further comprises a first stiffener (3115) and a second stiffener (3117), the first stiffener (3115) and the second stiffener (3117) are disposed in a space surrounded by the first straight bar (3111), the second straight bar (3112) and the bevel bar (3113), two opposite ends of the first stiffener (3115) are welded to the first straight bar (3111) and the bevel bar (3113), the second stiffener (3117) is perpendicular to the first stiffener (3115), and two opposite ends of the second stiffener (3117) are welded to the bevel bar (3113) and the second straight bar (3112).

8. The No. 0 block bracket according to claim 6, wherein the male-head triangular truss (312) further comprises a first stiffening rod (3127) and a second stiffening rod (3128), the first stiffening rod (3127) and the second stiffening rod (3128) are disposed in a space surrounded by the first right-angle bar (3121), the second right-angle bar (3123) and the diagonal bar (3124), opposite ends of the first stiffening rod (3127) are welded to the first right-angle bar (3121) and the diagonal bar (3124), respectively, the second stiffening rod (3128) is perpendicular to the first stiffening rod (3127), and opposite ends of the second stiffening rod (3128) are welded to the diagonal bar (3124) and the second right-angle bar (3123), respectively.

9. The No. 0 block bracket of claim 1, wherein the lower embedment plate (110) and the upper embedment plate (130) are formed of steel sections.

10. The No. 0 block bracket of claim 1, wherein the number of the counter-pulling screw rods (200) is plural, and the plural counter-pulling screw rods (200) are respectively disposed at opposite sides of the upper pre-buried plate (130).

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