Bailey bracket of cast-in-place box girder and construction method of Bailey bracket

A technology of cast-in-place boxes and support rods, applied in bridges, bridge construction, erection/assembly of bridges, etc., can solve problems such as low safety factor and insufficient support strength, achieve strong connection stability, improve support effect, and increase support strength Effect

Pending Publication Date: 2022-03-25
HUNAN ROAD & BRIDGE CONSTR GROUP
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AI-Extracted Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to solve the shortcomings of insufficient overall support strength and l...
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Method used

In the present invention, the bottom end of the support rod 4 is rotatably connected with a rotating block 24, and the top of the rotating block 24 is in contact with the bottom of the lower connecting plate 23, and the sides of the rotating block 24 away from each other are provided with a trapezoidal edge 241 The sides of the two fifth connecting blocks 21 close to each other are provided with trapezoidal notches 212, and the rotating block 24 is located between the two fifth connecting blocks 21 and fits with the fifth connecting block 21, the rotating block 24 The bottom is fixedly connected with a screw 25, the top of the support rod 4 extends between the two fourth connecting blocks 20 and is flush with the top of the upper chord 1, and the top of the support rod 4 is provided with a thread groove 41 used in conjunction with the screw 25 , through the threaded connection between the screw rod 25 and the threaded groove 41, the two support rods 4 can be vertically connected to improve the support effect of the support rods 4, and at the same time further strengthen the vertical connection stability of the two Bailey brackets.
In the present invention, the long vertical block 12 is fixedly connected with a second connection block 14 near the side of the support rod 4, and the top of the second connection block 14 is provided with a sixth screw hole 141, and two sixth screw holes 141 are connected simultaneously by bolts. The screw holes 141 can strengthen the vertical connection between the two Bailey brackets, and can also enhance the connection stability between the diagonal struts 11 to improve the supporting effect.
In the present invention, the vertical bar 3 is symmetrically fixedly connected with two second L-shaped connecting blocks 19 near the side of the support bar 4, and the side of the vertical bar 3 near the support bar 4 is symmetrically provided with two first support screws. Hole 31, a tenth screw hole 191 corresponding to the first support screw hole 31 is opened on one side of the second L-shaped connecting block 19, and the inside of the upper chord 1 and the lower chord 2 are symmetrically fixedly connected with two first L Type connecting block 8, one side of the first L-shaped connecting block 8 is in contact with one side of the vertical bar 3, and the side of the first connecting block 8 away from the vertical bar 3 is provided with a vertical connection with the second L-shaped connecting block 19. A rectangular notch 81 whose sides fit together, a third screw hole 82 corresponding to the tenth screw hole 191 is provided on one side of the rectangular notch 81, and a fourth screw hole 82 is provided on the top side of the first L-shaped connecting block 8. The hole 83 is connected with the first support screw hole 31, the third screw hole 82 and the tenth screw hole 191 through bolts, not only can the vertical bar 3 be fixedly connected with the upper chord 1 and the lower chord 2, to strengthen the stability, but also It is convenient to connect the two Bailey brackets horizontally, and to connect the two fourth screw holes 83 at the same time through bolts to facilitate the vertical docking of the Bailey brackets, and the connection method is simple and stable.
In the present invent...
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Abstract

The invention belongs to the technical field of bridge construction, and particularly relates to a cast-in-place box girder bailey support which comprises an upper chord and a lower chord, two vertical rods are symmetrically arranged between the upper chord and the lower chord, and the two ends of the upper chord and the two ends of the lower chord are each provided with a female head and a male head which are used for butt joint. Fixing blocks are fixedly welded to the sides, close to each other, of the two vertical rods, the same supporting rod is fixedly connected between the upper chord and the lower chord, and the supporting rod is located between the two vertical rods; the invention further discloses a construction method. According to the invention, through mutual connection among the upper chord members, the lower chord members, the vertical rods, the supporting rods and the inclined supporting rods, the connection mode is simple and easy to operate, the connection stability is high, a mutually restricted and mutually supported supporting net rack is constructed after connection, the connection nodes are not easy to break and deform, the supporting strength is greatly improved, and the supporting effect is good. And meanwhile, disassembly and transportation are facilitated, and the construction efficiency is improved.

Application Domain

Technology Topic

Butt jointBox girder +2

Image

  • Bailey bracket of cast-in-place box girder and construction method of Bailey bracket
  • Bailey bracket of cast-in-place box girder and construction method of Bailey bracket
  • Bailey bracket of cast-in-place box girder and construction method of Bailey bracket

Examples

  • Experimental program(2)

Example Embodiment

[0054] Example one
[0055] Refer Figure 1-12 , A Berre bracket for a cash box beam, including the upper string rod 1 and the lower string rod 2, the upper string rod 1 and the lower string rod 2 are symmetrically provided with two vertical rods 3, both ends of the upper string rod 1 and the lower string 2. A cover 5 and the head 6 are provided, and the two vertical rods 3 are fixedly welded to each other, and the fixed block 7 is fixed, and the upper string rod 1 and the lower string rod 2 are fixedly connected to the same support rod 4, Further, the support rod 4 is located between the two vertical rods 3, and one side rotation sleeve of the support rod 4 is provided with a fixed ring 9, and the top and bottom of the two fixed block 7 are fixed on both sides of the top of the fixed ring 9 and the bottom. The tip end of the plurality of oblique rods 11 at the upper side is fixed to the upper string rod 1, and the bottom end of the plurality of oblique rods 11 is fixedly coupled to the lower string rod 2 at the bottom end of the plurality of oblique rods 11 below.
[0056] In the present invention, the vertical rod 3 is symmetrically fixed to one side of the support rod 4, and two second L-connecting block 19 is fixed, and the vertical rod 3 is aligned with one side of the support rod 4, two first support screw holes 31 are opened. On one side of the second L-shaped connecting block 19, there is a tenth screw hole 191 corresponding to the first support screw hole 31, and two first L-type connecting blocks are fixedly connected to the upper chord rod 1 and the lower strings 2. 8. On one side of the first L-shaped connecting block 8 is in contact with one side of the vertical bar 3, the first connecting block 8 is provided with a vertical side of the second L-shaped connecting block 19 away from the side of the vertical rod 3. The rectangular slot 81, one side of the rectangular slot 81 is opened with the third screw hole 82 corresponding to the tenth screw hole 191, and the first side of the first L-shaped connecting block 8 has a fourth screw hole 83. The first support screw hole 31, the third screw hole 82, and the tenth screw hole 191 can be simultaneously connected by the bolt, but also can fix the vertical rod 3 and the upper chord rod 1 and the lower string rod 2, but also to enhance stability, it can also facilitate two The bener-rack is horizontally coupled, and the two fourth screw holes 83 are connected simultaneously through the bolt. It is convenient to perform vertical docking of the Beneri bracket, and the connection is simple and stable.
[0057] In the present invention, both the top and bottom of the fixing block 7 are provided with a first slot 71, and two of the fastening block 7 are open from the vertical rod 3, and two first screw holes 72 are communicating with corresponding first slot 71, respectively. The slant rod 11 is provided with a short vertical block 13 in one end of the fixed block 7, and the short vertical block 13 is inserted into the first slot 71, and the short vertical block 13 is opened with the first screw hole 72. The corresponding fifth screw hole 131, by the insertion of the short sphere block 13 and the first slot 71, the oblique strut rod 11 can be supported by the raw strut rod 11, and connected to the first screw hole 72 and the first bolt simultaneously The five screw 131 can be fixed to the oblique strut 11.
[0058] In the present invention, both sides and bottom sides of the top portion of the fixing ring 9 are provided with a second slot 91 inserted with the short shaft 13, and the fixed ring 9 is aligned with each other, and there are two respective respective respective respective respectively. The second slot 91 is connected to the second screw hole 92, and the second screw hole 92 corresponds to the fifth screw hole 131, and can be connected to the oblique strut 11 through the short sphere 13 and the second slot 91. The effect of the limit support and the second screw hole 92 and the fifth screw hole 131 can be fixed to the oblique strut 11 by the bolt.
[0059] In the present invention, the diagonal rod 11 is provided with one end of the fixed block 7, and the longitudinal block 12 is fixed from one side of the support rod 4 fixed to the third connection block 15, the third connection block 15 The top of the top is opened with the seventh screw hole 151, and four of the upper and lower strings 1 and the lower string rod 2 have four first connecting blocks 10 that are in contact with the corresponding third connection block 15, and one side of the first connection block 10. Contact with one side of the long vertical block 12, the top of the four first connecting blocks 10 located within the upper string rod 1 is in line with the top of the upper string rod 1, and four first connecting blocks 10 in the lower string rod 2. The bottom portion is flat to the bottom of the lower string rod 2, and the top of the plurality of first connecting blocks 10 is opened with a second support screw hole 101 corresponding to the seventh screw hole 151, and the seventh screw hole 151 is connected by the bolt. The second support screw hole 101 can be fixed to the oblique strut 11.
[0060] In the present invention, the internal symmetrical fixation of the upper chord rod 1 has two fourth connecting blocks 20, and the top of the fourth connection block 20 is opened, and the internal symmetrical fixed connection of the lower string rod 2 has two fifth The connecting block 21, the top of the fifth connection block 21 is opened, and the upper and lower sides of the support rod 4 are respectively provided with the upper connecting plate 22 and the lower connection plate 23, the top and the string of the upper connecting plate 22. The bottom phase of the rod 1 is symmetrically opened, and two of the thirteenth screw hole 221 corresponding to the eleventh screw hole 201, the bottom portion of the lower connecting plate 23 and the top of the lower strings 2 are symmetrically opened. The fourteenth screw hole 231 corresponding to the twelfth screw hole 211, by the bolt, the eleventh screw hole 201 and the thirteenth screw hole 221 can be fixed to the upper connecting plate 22 and the upper string 1, pass The bolt is simultaneously connected to the twelfth screw hole 211 and the fourteenth screw hole 231 to secure the lower connecting plate 23 to the lower strings 2.

Example Embodiment

[0061] Example 2
[0062] This embodiment is further improved as the above example: Figure 1-12 , A Berre bracket for a cash box beam, including the upper string rod 1 and the lower string rod 2, the upper string rod 1 and the lower string rod 2 are symmetrically provided with two vertical rods 3, both ends of the upper string rod 1 and the lower string 2. A cover 5 and the head 6 are provided, and the two vertical rods 3 are fixedly welded to each other, and the fixed block 7 is fixed, and the upper string rod 1 and the lower string rod 2 are fixedly connected to the same support rod 4, Further, the support rod 4 is located between the two vertical rods 3, and one side rotation sleeve of the support rod 4 is provided with a fixed ring 9, and the top and bottom of the two fixed block 7 are fixed on both sides of the top of the fixed ring 9 and the bottom. The tip end of the plurality of opposing rods 11 is connected to the upper strings 1 is fixed to the upper string rod 1, and the bottom end of the plurality of oblique rods 11 is fixed to the lower strings 2, located on the upper and lower side. The two opposite rods 11 are fixedly connected to the same set of reinforcing mechanisms.
[0063] In the present invention, the vertical rod 3 is symmetrically fixed to one side of the support rod 4, and two second L-connecting block 19 is fixed, and the vertical rod 3 is aligned with one side of the support rod 4, two first support screw holes 31 are opened. On one side of the second L-shaped connecting block 19, there is a tenth screw hole 191 corresponding to the first support screw hole 31, and two first L-type connecting blocks are fixedly connected to the upper chord rod 1 and the lower strings 2. 8. On one side of the first L-shaped connecting block 8 is in contact with one side of the vertical bar 3, the first connecting block 8 is provided with a vertical side of the second L-shaped connecting block 19 away from the side of the vertical rod 3. The rectangular slot 81, one side of the rectangular slot 81 is opened with the third screw hole 82 corresponding to the tenth screw hole 191, and the first side of the first L-shaped connecting block 8 has a fourth screw hole 83. The first support screw hole 31, the third screw hole 82, and the tenth screw hole 191 can be simultaneously connected by the bolt, but also can fix the vertical rod 3 and the upper chord rod 1 and the lower string rod 2, but also to enhance stability, it can also facilitate two The bener-rack is horizontally coupled, and the two fourth screw holes 83 are connected simultaneously through the bolt. It is convenient to perform vertical docking of the Beneri bracket, and the connection is simple and stable.
[0064] In the present invention, both the top and bottom of the fixing block 7 are provided with a first slot 71, and two of the fastening block 7 are open from the vertical rod 3, and two first screw holes 72 are communicating with corresponding first slot 71, respectively. The slant rod 11 is provided with a short vertical block 13 in one end of the fixed block 7, and the short vertical block 13 is inserted into the first slot 71, and the short vertical block 13 is opened with the first screw hole 72. The corresponding fifth screw hole 131, by the insertion of the short sphere block 13 and the first slot 71, the oblique strut rod 11 can be supported by the raw strut rod 11, and connected to the first screw hole 72 and the first bolt simultaneously The five screw 131 can be fixed to the oblique strut 11.
[0065]In the present invention, both sides and bottom sides of the top portion of the fixing ring 9 are provided with a second slot 91 inserted with the short shaft 13, and the fixed ring 9 is aligned with each other, and there are two respective respective respective respective respectively. The second slot 91 is connected to the second screw hole 92, and the second screw hole 92 corresponds to the fifth screw hole 131, and can be connected to the oblique strut 11 through the short sphere 13 and the second slot 91. The effect of the limit support and the second screw hole 92 and the fifth screw hole 131 can be fixed to the oblique strut 11 by the bolt.
[0066] In the present invention, the diagonal rod 11 is provided with one end of the fixed block 7, and the longitudinal block 12 is fixed from one side of the support rod 4 fixed to the third connection block 15, the third connection block 15 The top of the top is opened with the seventh screw hole 151, and four of the upper and lower strings 1 and the lower string rod 2 have four first connecting blocks 10 that are in contact with the corresponding third connection block 15, and one side of the first connection block 10. Contact with one side of the long vertical block 12, the top of the four first connecting blocks 10 located within the upper string rod 1 is in line with the top of the upper string rod 1, and four first connecting blocks 10 in the lower string rod 2. The bottom portion is flat to the bottom of the lower string rod 2, and the top of the plurality of first connecting blocks 10 is opened with a second support screw hole 101 corresponding to the seventh screw hole 151, and the seventh screw hole 151 is connected by the bolt. The second support screw hole 101 can be fixed to the oblique strut 11.
[0067] In the present invention, the longitudinal block 12 is fixed to one side of the support rod 4 fixed to the second connection block 14, and the top of the second connecting block 14 is opened, and the sixth screw hole is connected by the bolt. The vertical docking of the two Beneri brackets can be strengthened, and the connection stability between the oblique strut 11 can be strengthened, and the support effect is improved.
[0068] In the present invention, the reinforcing mechanism includes a reinforcing bar 16 and a short block 17 and a restricted rod 18 and a restricted rod 18, a restricted rod 18, and a long-stop block 17 that are fixedly attached to the oblique rod 11. On one side of the block 16, an eighth screw hole 161 is opened, and two sides of the reinforcing rod 18 are sided, and two ninth screw holes 181 corresponding to the respective eighth screw hole 161 are simultaneously connected by the bolt. The ninth screw hole 181 can fix the reinforcing rod 18 with the oblique rod 11, and can support the upper and lower two oblique rods 11 by the reinforcing rod 18, improve the support capacity of the oblique rod 11 to prevent the slanting rod. 11 deformation.
[0069] In the present invention, the internal symmetrical fixation of the upper chord rod 1 has two fourth connecting blocks 20, and the top of the fourth connection block 20 is opened, and the internal symmetrical fixed connection of the lower string rod 2 has two fifth The connecting block 21, the top of the fifth connection block 21 is opened, and the upper and lower sides of the support rod 4 are respectively provided with the upper connecting plate 22 and the lower connection plate 23, the top and the string of the upper connecting plate 22. The bottom phase of the rod 1 is symmetrically opened, and two of the thirteenth screw hole 221 corresponding to the eleventh screw hole 201, the bottom portion of the lower connecting plate 23 and the top of the lower strings 2 are symmetrically opened. The fourteenth screw hole 231 corresponding to the twelfth screw hole 211, by the bolt, the eleventh screw hole 201 and the thirteenth screw hole 221 can be fixed to the upper connecting plate 22 and the upper string 1, pass The bolt is simultaneously connected to the twelfth screw hole 211 and the fourteenth screw hole 231 to secure the lower connecting plate 23 to the lower strings 2.
[0070] In the present invention, the bottom end of the support rod 4 is rotatably coupled with the rotating block 24, and the top portion of the rotating block 24 is in contact with the bottom of the lower connecting plate 23, and the rotation block 24 is located on one side away from each other. The fifth connecting block 21 is provided with a trapezoidal slot 212, and the rotating block 24 is located between the two fifth connecting blocks 21 and in combination with the fifth connection block 21, and the bottom fixed connection of the rotating block 24 is fixed. There is a screw 25, and the top end of the support rod 4 extends between the two fourth connecting blocks 20 and is flush with the top of the upper chord rod 1, and the top end of the support rod 4 is provided with the thread groove 41 used in conjunction with the screw 25, through the screw. 25 The thread connection of the thread groove 41 can perform vertical connections to the two support rods 4, and improve the support effect of the support rod 4, and further strengthen the vertical connection stability of the two Benerning brackets.
[0071] The advantages of the second embodiment of the embodiment are:
[0072] First, by the arrangement of the reinforcing mechanism, the upper and lower opposing rods 11 can be supported, and the support capability of the oblique support rod 11 is improved, and the beveled rod 11 is prevented;
[0073] Second, the connection between the two second connecting blocks 14 can be strengthened not only to strengthen the vertical docking of the two Benerning brackets, but also strengthen the overall connectivity between the oblique struts 11, improve the support effect;
[0074] Third, through the screw 25 and the threaded connection of the thread groove 41, the two support rods 4 can be vertically connected, and the support effect of the support rod 4 can be improved, and the vertical connection stability of the two Bener brackets is further enhanced.
[0075] The construction method of the Bele bracket of a cash-in-swelling gilt, including the following steps:
[0076] S1, the assembly of the Bele bracket:
[0077] S11, first place the lower chord rod 2 on the ground, and insert the longitudinal block 12 of the four oblique struts 11, the interior of the lower string 2 and the bottom of the third connection block 15 and the first connecting block 10 In contact, then connect the seventh screw hole 151 and the second support screw hole 101 to the oblique strut rod 11 to a fixed connection by the bolt.
[0078] After S12, the bottom end of the four oblique struts 11 below is fixed, the two vertical rods 3 are placed vertically on both sides of the top of the lower string rod 2, and the second L-type connecting block 19 is connected to the first L-type connection. The rectangular slot 81 on the block 8 is engaged, and the two short vertical blocks 13 located on both sides are inserted into the first slot 71 below, and the vertical rod 3 can be placed on the vertical rod 3, and then the bolt At the same time, the first screw hole 72 is connected to the first screw hole 72, and the top end of the opposite rod 11 of the lower side is fixedly connected to the fixed block 7;
[0079] S13, the bottom of the lower connecting plate 23 on the support rod 4 is placed at the top of the lower string rod 2 and causes the transfer block 24 between the two fifth connecting blocks 21 while the two bottom of the ring 9 is fixed. The second slot 91 is inserted with two short vertical spheres 13 in the middle, and then connects the fifth screw hole 131 and the second screw hole 92 to the top and fixed ring of the top and fixed ring of the outer casing rod 11 in the lower middle by the bolt. 9 fixed connection;
[0080] S14, then the short vertical block 13 of the remaining four oblique struts 11 corresponds to the first slot 71 and the second slot 91 inserted above, and a fixed connection is performed by the bolt on the slanting strut 11 again.
[0081] S15, the reinforcing rod 18 is inserted between the long stop block 16 and the short stop block 17, and the first screw hole 161 and the ninth screw hole 181 are fixed to the reinforcing rod 18 to secure the reinforcing rod 18 with the bolt.
[0082] S16, finally placed the upper strings 1 at the top of the two vertical rods 3, engage the second L-shaped connecting block 19 and the first L-shaped connector 8 phase, the bottom and third connection block 15 of the first connection block 10 The top portion is in contact with the bottom portion of the fourth connection block 20 in contact with the top of the upper connecting plate 22, and the upper chord rod 1 is fixed to the opposite rod 11 and the upper connecting plate 22, respectively, to complete the Beneri bracket. Assembly;
[0083] S2, the docking of Bele bracket:
[0084] S21, the lateral docking of the Bele bracket:
[0085] S211, the two assembled Bele brackets are placed in parallel, and the initial docking fixation is performed by the front head 5 and the sun 6;
[0086] S212, through the long bolt simultaneously connect the first support screw hole 31, the third screw hole 83, and the tenth screw hole 191 on both sides, not only can the vertical rod 3 are connected to the upper chord rod 1 and the lower string 2, but also The lateral docking of the two Bele brackets;
[0087] S22, the vertical docking of the Bele bracket:
[0088] S221, align the two assembled Bele brackets, allow the upper screw 25 to align the thread groove 41 below, and then rotate the support rod 4 to thread the screw 25 and the threaded groove 41, since the rotation block 24 is connected to the fifth connection The block 21 is connected to such that the rotating block 24 does not rotate, so that the screw 25 does not rotate, and the lower string rod 1 is slowly in contact with the upper string rod 2, which can not only improve two bearel The connecting stability of the bracket can also be connected to the two support rods 4, and improve the support effect of the support rod 4;
[0089] S222, then use the bolt simultaneously to connect two opposing fourth screw holes 83, and fix the two Beret brackets;
[0090] S223, finally using the bolt simultaneously connect two opposing sixth screw holes 141, not only can the two Bele brackets are further enhanced, but also connect the upper and lower angle rods 11, and improve the overall of the oblique rod 11. Connectivity, thereby increasing the support effect of the slant rod 11.
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