CN115821800A - Construction method for closure pouring of closure section of continuous beam bridge - Google Patents
Construction method for closure pouring of closure section of continuous beam bridge Download PDFInfo
- Publication number
- CN115821800A CN115821800A CN202310001917.2A CN202310001917A CN115821800A CN 115821800 A CN115821800 A CN 115821800A CN 202310001917 A CN202310001917 A CN 202310001917A CN 115821800 A CN115821800 A CN 115821800A
- Authority
- CN
- China
- Prior art keywords
- hanging
- supporting
- pouring
- groups
- steel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000010276 construction Methods 0.000 title claims abstract description 87
- 239000004567 concrete Substances 0.000 claims abstract description 22
- 238000000034 method Methods 0.000 claims abstract description 13
- 238000009434 installation Methods 0.000 claims abstract description 9
- 229910000831 Steel Inorganic materials 0.000 claims description 74
- 239000010959 steel Substances 0.000 claims description 74
- 238000004873 anchoring Methods 0.000 claims description 12
- 230000001681 protective effect Effects 0.000 claims description 8
- 241001669679 Eleotris Species 0.000 claims description 7
- 238000004519 manufacturing process Methods 0.000 claims description 5
- 238000005516 engineering process Methods 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- 238000003466 welding Methods 0.000 claims description 4
- 239000004566 building material Substances 0.000 claims description 3
- 238000007689 inspection Methods 0.000 claims description 3
- 229910001294 Reinforcing steel Inorganic materials 0.000 abstract 1
- 239000000463 material Substances 0.000 description 10
- 230000007306 turnover Effects 0.000 description 3
- 238000005266 casting Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000003908 quality control method Methods 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009415 formwork Methods 0.000 description 1
- 239000011513 prestressed concrete Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
Images
Landscapes
- Bridges Or Land Bridges (AREA)
Abstract
The invention discloses a construction method for closure pouring of a closure section of a continuous beam bridge, and belongs to the technical field of construction processes of bridge engineering structures. The construction method for closure pouring of the closure section of the continuous beam bridge can effectively guarantee the linear state of the full bridge and improve the construction progress. The rotary working method is based on the existing single hanging basket supporting system, the closed section supporting system which forms double hanging baskets after improvement is used for supporting the pouring template, then the closed section supporting system is respectively supported in sequence, the locking linear adjustment of the closed section, the binding of reinforcing steel bars and the installation of the pouring template are completed, the pouring template is checked and accepted, the front span pouring construction is carried out, the closed section concrete is poured after the check and acceptance are qualified, and the pouring construction of the whole closed section concrete is completed; and finally, dismantling the hanging basket.
Description
Technical Field
The invention relates to a construction method, in particular to a construction method for closure pouring of a closure section of a continuous beam bridge, and belongs to the technical field of construction processes of bridge engineering structures.
Background
Since the Worms Bridge of the prestressed concrete beam Bridge spanning the Rhine river, which is the first cantilever casting construction worldwide, is developed and designed by Dychel-hoff & Widmann company, the cantilever construction method is widely accepted by engineering circles worldwide through continuous improvement, and is one of important construction methods for constructing bridges with medium and large spans at present.
The cradle has been widely developed because of its own advantages, and the cradle construction is influenced by terrain conditions relatively little at first, and the influence on the traffic under the bridge can be almost ignored, and the cradle is widely used in bridge construction, especially the large bridge of crossing the valley, existing road, river and sea area, etc. that the construction condition is poor, is applicable to the structure construction of medium-and-large span cantilever bridge, T-shaped steel bridge, continuous girder bridge, continuous rigid frame bridge, cable-stayed bridge, etc. The hanging basket cantilever casting method has the main characteristics that the construction equipment and the use amount of the turnover materials are small, a floor stand does not need to be erected under most conditions according to the characteristics of construction conditions, large-scale hoisting and transporting machines are not needed, the main equipment is a pair of hanging baskets capable of walking, the investment of the turnover materials can be effectively reduced, and the turnover circulating operation can be well realized.
However, the cradle construction also has obvious disadvantages, for example, when closing is to be performed in the continuous beam bridge construction process, the conventional construction method is that the unilateral cradle is removed when being retreated to the pier top or the passage of the lower passage is not influenced, and the unilateral cradle is moved to the closing position to perform unilateral cradle closing, so that the construction disturbs the constructed section, influences the construction period, increases the investment, and even influences the whole bridge forming linear shape when being serious.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the construction method for closure pouring of the closure section of the continuous beam bridge can effectively guarantee the linear state of the full bridge and improve the construction progress.
The technical scheme adopted for solving the technical problems is as follows: a construction method for closure pouring of a closure section of a continuous beam bridge comprises the following steps,
step 1, on the premise of safety technology bottom matching, preparing data and corresponding building materials according to pouring site requirements, and meanwhile, manufacturing a closure section supporting system of a double-hanging-basket pouring template according to a design drawing;
step 2, pre-burying the embedded parts in advance when the front sections on the left side and the right side of the closure section are poured, welding the stiff frameworks and pre-buried steel plates of the embedded parts to complete locking of the closure section, and performing linear adjustment;
step 3, after the linear adjustment is finished, moving the cradle support forwards, moving to a specified position, mounting the cradle, and then binding the steel bars and mounting a pouring template;
step 4, after the pouring template is installed, checking and accepting, performing front span pouring construction, and after the front span pouring is completed, performing locking adjustment again to ensure the integral line shape of the continuous beam bridge;
step 5, after the construction of the front span section is finished, construction of a closure section is carried out, and the concrete process is that a counterweight water tank is added on two sides to finish integral counterweight, a stiff framework is adjusted, a middle and small beam of a support system of the closure section is installed, and the line shape and elevation are adjusted to finish installation construction of a bottom template;
step 6, binding steel bars and installing side templates;
step 7, after checking and acceptance, pouring closure section concrete to complete the pouring construction of the whole closure section concrete;
and 8, removing the template after the initial setting and the strength of the concrete meet the requirements, removing the hanging basket according to the conventional requirements, and putting down the template at the middle closure section through a winch for removal.
Further, the closure section supporting system manufactured in the step 1 comprises two adjusting part sets, two hanging part sets and a supporting part set,
during installation, the two groups of hanging pieces are respectively arranged on the corresponding hanging support beams of the hanging basket support through the two groups of adjusting pieces in a lifting manner along the height direction, and two ends of the support pieces are respectively supported on the corresponding ends of the continuous beam bridge to be closed through the corresponding hanging pieces.
In a preferred mode of the above scheme, the adjusting member set is composed of a plurality of telescopic adjusting jacks, the hanging member set is composed of a plurality of steel straps, the supporting member set is composed of a plurality of groups of supporting beams, and the supporting beams of one group are hung on the hanging supporting beams through the two steel straps under the matching of the two telescopic adjusting jacks.
Furthermore, each group of support beam group equally divide and do not include a set of under bracing I-steel and a set of upper supporting I-steel, the under bracing I-steel arrange the bottom surface department that needs two tip that the continuous beam bridge closed the dragon through corresponding steel suspender, upper supporting I-steel and under bracing I-steel position suit arrange on the top surface of two tip, treat the middle part of closure section concrete at continuous beam bridge and still be provided with well davit group, the upper end of well davit group is worn to overlap on the upper supporting I-steel, the lower extreme of well davit group is worn to overlap on the under bracing I-steel.
The preferable mode of the scheme is that the lower supporting I-steel comprises supporting lower I-steel arranged at two ends and connecting lower I-steel arranged in the middle, two groups of rear lower cross beams and two groups of front lower cross beams are arranged below the lower supporting I-steel respectively, the supporting lower I-steel at the two ends is arranged on the bottom surfaces of two ends of the continuous beam bridge needing to be closed under the matching of the embedded anchor rods and the steel hanging strips through the corresponding rear lower cross beams and the corresponding front lower cross beams respectively, and the connecting lower I-steel in the middle is arranged below concrete of the section to be closed under the matching of the upper supporting I-steel through the middle hanging rod group.
Further, the embedded parts comprise embedded part groups and supporting guide part groups, the supporting guide part groups are arranged at the end parts of the continuous beam bridge needing to be closed through the embedded part groups, the cradle supports are arranged on the supporting guide part groups,
the embedded part group comprises a plurality of sets of embedded rail anchoring ribs, the supporting guide part group comprises two sets of walking rail groups, the two sets of walking rail groups are respectively arranged at the end part of the continuous beam bridge needing to be closed through the corresponding embedded rail anchoring ribs, and the cradle supports are respectively and correspondingly arranged on the walking rail groups.
The preferable mode of the scheme is that each set of the walking track group respectively comprises a walking track, a bottom small bolster and a bottom track main bolster, the walking track is respectively and simultaneously arranged on the corresponding end part of the continuous beam bridge needing to be closed through the corresponding bottom small bolster and the corresponding bottom track main bolster, the bottom track main bolster is positioned on the inner side of the corresponding end part of the continuous beam bridge, and the basket hanging supports are respectively and correspondingly arranged on the corresponding walking tracks.
Furthermore, the cradle support comprises two groups of supporting type hanging truss groups, each group of the supporting type hanging truss groups is arranged on the corresponding end part of the continuous girder bridge needing to be closed under the matching of the corresponding embedded rail anchoring ribs of the embedded part group through the corresponding walking rail group, and the hanging part group is arranged between the two end parts of the continuous girder bridge needing to be closed through the supporting type hanging truss groups.
The preferable mode of the scheme is that each group of the supporting type hanging truss comprises at least one hanging truss and one hanging support beam, the hanging trusses are respectively provided with a protective ladder stand and a safety protective guard, the hanging support beams are arranged on hanging support points of the ends, extending out of the continuous beam bridge, of the hanging trusses, and the hanging trusses are arranged on corresponding walking tracks through the bottoms of the hanging trusses.
Furthermore, each hanging truss is composed of a prismatic support hanging rack with a projection in a vertical plane in a parallelogram shape, a support upright post is arranged on the short diagonal of the prismatic support hanging rack, the prismatic support hanging rack extends out of the end part of the continuous beam bridge through the upper end of the long diagonal of the prismatic support hanging rack, and the hanging support point is positioned at the far end of the parallel edge on the prismatic support hanging rack; and the far end of the parallel edge below the prismatic support hanging rack is also provided with a rear anchor beam, and the corresponding embedded rail anchoring ribs are fixedly connected with the prismatic support hanging rack through the rear anchor beam.
The invention has the beneficial effects that: the technical scheme provided by the application is mainly applied to a double-hanging-basket construction method adopted when a continuous beam bridge is about to close, the construction method can effectively and completely complete the construction of a closing section, the construction quality can be effectively improved, and the whole structure line shape of the bridge is ensured. The scheme of this application has fully considered structure atress in the work progress, stable and to continuous beam bridge overall structure atress and the alignment of forming the bridge, whole construction speed etc. that the work progress is simple to can the effectual current material of utilization, consequently greatly reduced engineering time and cost improve construction quality. Through the innovative design to closing the dragon section above, have higher promotion to site operation quality and progress, take and material cost greatly reduced to whole construction measures to can be effective quick handle scene emergency, not only can more effectual improvement close the linear control of dragon section work progress, also can improve the efficiency of construction greatly, the material in this scheme is easily obtained moreover, strength nature skeleton is connected through pre-buried built-in fitting in advance, easy operation, quality control is obvious, whole structure has better effect to the linear of bridge after closing.
Drawings
Fig. 1 is a schematic structural diagram of a closure section supporting system involved in the construction method for closure pouring of a closure section of a continuous beam bridge according to the present invention;
fig. 2 is a cross-sectional view of fig. 1 of the present invention.
Labeled as: the continuous beam bridge comprises a continuous beam bridge 4, a pouring template 5, an embedded group 6, a supporting guide group 7, a walking rail 8, a bottom small pad beam 9, a bottom rail main sleeper beam 10, a supporting type hanging truss group 11, a hanging truss 12, a hanging supporting beam 13, a protective ladder 14, a safety protective guard 15, a supporting upright post 16, a rear anchor beam 17, an adjusting group 18, a hanging group 19, a supporting group 20, a lower supporting I-shaped steel 21, an upper supporting I-shaped steel 22, a middle suspension rod group 23, a lower supporting I-shaped steel 24, a lower connecting I-shaped steel 25, a rear lower cross beam 26, a front lower cross beam 27 and closure section concrete 28.
Detailed Description
As shown in fig. 1 and 2, the construction method for closure pouring of closure sections of continuous beam bridges, provided by the invention, can effectively ensure the linear state of a full bridge and improve the construction progress. The rotary working method comprises the following steps of,
step 1, on the premise of safety technology bottom matching, preparing data and corresponding building materials according to pouring site requirements, and meanwhile, manufacturing a closure section supporting system of a double-hanging-basket pouring template according to a design drawing;
step 2, pre-burying the embedded parts in advance when the front sections on the left side and the right side of the closure section are poured, welding the stiff frameworks and pre-buried steel plates of the embedded parts to complete locking of the closure section, and performing linear adjustment;
step 3, after the linear adjustment is finished, moving the cradle support forwards, moving to a specified position, mounting the cradle, binding the steel bars and mounting a pouring template 5;
step 4, after the pouring template 5 is installed, checking and accepting, performing front span pouring construction, and after the front span pouring is completed, performing locking adjustment again to ensure the integral line shape of the continuous beam bridge 4;
step 5, after the construction of the front span section is finished, construction of a closure section is carried out, and the concrete process is that a counterweight water tank is added on two sides to finish integral counterweight, a stiff framework is adjusted, a middle and small beam of a support system of the closure section is installed, and the line shape and elevation are adjusted to finish installation construction of a bottom template;
step 6, binding steel bars and installing side templates;
step 7, after the inspection and acceptance are qualified, pouring the closure section concrete 28, and completing the pouring construction of the whole closure section concrete 28;
and 8, removing the template after the concrete is initially set and the strength meets the requirements, removing the hanging basket according to the conventional requirements, and lowering the template at the middle closure section through a winch for removal. The technical scheme provided by the application is mainly applied to a double-hanging-basket construction method adopted when a continuous beam bridge is about to close, the construction method can effectively and completely complete the construction of the closing section, the construction quality can be effectively improved, and the whole structural line shape of the bridge is ensured. The scheme of this application has fully considered structure atress in the work progress, stable and to continuous beam bridge overall structure atress and the alignment of forming the bridge, whole construction speed etc. that the work progress is simple to can the effectual current material of utilization, consequently greatly reduced engineering time and cost improve construction quality. Through the innovative design to the closure section above, have higher promotion to site operation quality and progress, take cost and material cost greatly reduced to whole construction measures to can effective quick treatment scene emergency, not only can more effectual improvement closure section work progress linear control, also can improve the efficiency of construction greatly, and the material in this scheme is easy to obtain moreover, strength nature skeleton is connected through pre-buried built-in fitting in advance, easy operation, quality control is obvious, whole structure has better effect to the linear of bridge after closure.
In the above embodiment, in combination with the actual situation of field production and the production level of the prior art, the closure section support system manufactured in step 1 of the present application comprises two sets of adjusting members 18, two sets of hanging members 19 and one set of support members 20,
during installation, the two groups of hanging piece groups 19 are respectively arranged on the corresponding hanging support beams 13 of the hanging basket support through the two groups of adjusting piece groups 18 in a lifting manner along the height direction, and two ends of the support piece groups 20 are respectively supported on the corresponding ends of the continuous beam bridge 4 needing to be closed through the corresponding hanging piece groups 19. In this case, the adjusting member group 18 is composed of a plurality of telescopic adjusting jacks, the hanging member group 19 is composed of a plurality of steel slings, the support member group 20 is composed of a plurality of support beam groups, and the support beam groups are hung on the hanging support beam 13 by the two telescopic adjusting jacks through the two steel slings. Every a set of the supporting beam group equally divide and do not include a set of under bracing I-steel 21 and a set of support I-steel 22, under bracing I-steel 21 arrange the bottom surface department that needs two tip of closure at continuous beam bridge 4 through corresponding steel suspender, the upper support I-steel 22 with the under bracing I-steel 21 position suit arrange on the top surface of two tip, treat in continuous beam bridge 4 that closure section concrete 28's middle part still is provided with well jib group 23, the upper end of well jib group 23 is worn to overlap on last support I-steel 22, the lower extreme of well jib group 23 is worn to overlap on under bracing I-steel 21. In order to facilitate the operation, this application lower support I-steel 21 including be located the support of both ends under I-steel 24 and be located the middle connection under I-steel 25, support the below of I-steel 21 down and still arranged two sets of back bottom end rail 26 and two sets of preceding bottom end rail 27 respectively, the support at both ends is under I-steel 24 respectively through the back bottom end rail 26 that corresponds and the preceding bottom end rail 27 that corresponds arrange the bottom surface department at two tip that continuous beam bridge 4 needs to close the dragon under the cooperation of pre-buried stock and steel suspender, the middle connection is under I-steel 25 and is arranged under waiting to close the dragon section concrete 28 under the cooperation of upper support I-steel 22 through well jib group 23.
Further, according to the characteristic that the existing single cradle support needs to be moved and combined with a fixed phase in the pouring process of the continuous girder bridge, in order to realize pouring of the closure section of the continuous girder bridge, the embedded part comprises an embedded part group 6 and a supporting guide part group 7, the supporting guide part group 7 is arranged at the end part of the continuous girder bridge 4 needing to be closed through the embedded part group 6, the cradle support is arranged on the supporting guide part group 7,
the embedded part group 6 comprises a plurality of sets of embedded rail anchoring ribs, the supporting guide part group 7 comprises two sets of walking rail groups, the two sets of walking rail groups are respectively arranged at the end part of the continuous beam bridge 4 needing to be closed through the corresponding embedded rail anchoring ribs, and the basket hanging supports are respectively and correspondingly arranged on the walking rail groups. At this moment, each set of walking track group equally divide and respectively include walking track 8, bottom trabecula 9 and bottom track owner sleeper beam 10, walking track 8 arrange on the corresponding tip of the continuous beam bridge 4 that needs to close the dragon through corresponding bottom trabecula 9 and corresponding bottom track owner sleeper beam 10 simultaneously respectively, bottom track owner sleeper beam 10 be located the inboard of the corresponding tip of continuous beam bridge 4, the basket support of hanging correspond respectively arrange on corresponding walking track 8. The hanging basket support comprises two groups of supporting type hanging truss groups 11, each group of the supporting type hanging truss groups 11 are respectively arranged on the corresponding end parts of the continuous girder bridge 4 needing to be closed through the corresponding walking track groups under the matching of the corresponding embedded track anchoring ribs of the embedded group 6, and the hanging group 19 is arranged between the two end parts of the continuous girder bridge 4 needing to be closed through each group of the supporting type hanging truss groups 11. Each group of the supporting type hanging truss groups 11 respectively comprises at least one hanging truss 12 and one hanging support beam 13, the hanging trusses 12 are respectively provided with a protective ladder 14 and a safety protective guard 15, the hanging support beams 13 are arranged on hanging support points of the hanging trusses 12 extending out of the end part of the continuous beam bridge 4, and the hanging trusses 12 are arranged on the corresponding walking tracks 8 through the bottoms of the hanging trusses. Each of the hanging trusses 12 is composed of a prismatic support hanging rack with a parallelogram projection in a vertical plane, a support upright post 16 is arranged on the short diagonal line of the prismatic support hanging rack, the prismatic support hanging rack extends out of the end part of the continuous beam bridge 4 through the upper end of the long diagonal line of the prismatic support hanging rack, and the hanging support point is positioned at the far end of the parallel edge of the prismatic support hanging rack; and the far ends of the lower parallel edges of the prismatic support hanging racks are also provided with rear anchor beams 17, and the corresponding pre-embedded rail anchoring ribs are fixedly connected with the prismatic support hanging racks through the rear anchor beams 17.
The double-hanging basket structure consists of the following 15 parts.
Rear anchor beam I32b, transverse connecting material [20S, front upper beam I45b, front upper beam, middle suspension rod, reinforcing bolt, reinforcing trabecula, steel sling, closure section middle trabecula, leveling beam, front lower beam, rigid skeleton, embedded angle steel, guide beam and inner sliding beam
The raw materials of each part are simple and easy to obtain, the construction is convenient, the operation is simple, the stress performance is good, the cost is low, and the method is convenient, practical, safe and environment-friendly.
Example one
The specific construction process of the above structure of the present application is as follows,
step 1, the materials needed on site are completely prepared, and safety technology is used.
Step 2, pre-burying embedded parts such as steel plates and the like in advance at a section (left and right) before the closure section, welding the stiff skeleton and the pre-buried steel plates, completing closure section locking in advance, and performing linear adjustment;
step 3, completing linear adjustment, moving the hanging basket forwards, moving to a specified position, and performing hanging basket installation, steel bar binding, template installation and other constructions;
step 4, checking and accepting after construction is finished to carry out front span pouring construction, and locking and adjusting again after pouring is finished to ensure the integral line shape;
step 5, after the construction of the front section is finished, finally, construction of a closure section is carried out, a counterweight water tank is added on two sides to finish integral counterweight, a stiff framework is adjusted, a middle and small beam in the closure section is installed, and line shape and elevation are adjusted to finish bottom formwork construction;
step 6, installing a steel bar binding template;
step 7, after the inspection and acceptance are qualified, pouring concrete to complete the whole construction;
and 8, removing the template, removing the hanging basket according to a conventional method, and removing the template at the middle closure section by lowering the template through a winch, so that the whole structure is safe and reliable.
Claims (10)
1. The construction method for the closure pouring of the closure section of the continuous beam bridge is characterized by comprising the following steps: the rotary working method comprises the following steps of,
step 1, on the premise of safety technology bottom matching, preparing data and corresponding building materials according to pouring site requirements, and meanwhile, manufacturing a closure section supporting system of a double-hanging-basket pouring template according to a design drawing;
step 2, pre-burying an embedded part in advance when the front sections on the left side and the right side of the closure section are poured, welding the stiff framework and a pre-buried steel plate of the embedded part to complete locking of the closure section, and performing linear adjustment;
step 3, after the linear adjustment is finished, moving the cradle support forwards, moving to a specified position, mounting the cradle, binding the steel bars and mounting a pouring template (5);
step 4, after the pouring template (5) is installed, checking and accepting, performing front span pouring construction, and after the front span pouring is completed, locking and adjusting again to ensure the integral line shape of the continuous beam bridge (4);
step 5, after the construction of the front span section is finished, construction of a closure section is carried out, and the concrete process is that a counterweight water tank is added on two sides to finish integral counterweight, a stiff framework is adjusted, a middle and small beam of a support system of the closure section is installed, and the line shape and elevation are adjusted to finish installation construction of a bottom template;
step 6, binding steel bars and installing side templates;
step 7, after the inspection and acceptance are qualified, pouring the closure section concrete (28), and completing the pouring construction of the whole closure section concrete (28);
and 8, removing the template after the concrete is initially set and the strength meets the requirements, removing the hanging basket according to the conventional requirements, and lowering the template at the middle closure section through a winch for removal.
2. The construction method for closure pouring of the closure section of the continuous beam bridge according to claim 1, characterized by comprising the following steps: the closure section supporting system manufactured in the step 1 comprises two groups of adjusting piece sets (18), two groups of hanging piece sets (19) and a group of supporting piece sets (20),
during installation, the two groups of hanging piece groups (19) are respectively arranged on the corresponding hanging support beams (13) of the hanging basket support through the two groups of adjusting piece groups (18) in a lifting manner along the height direction, and two ends of the support piece groups (20) are respectively supported on the corresponding ends of the continuous beam bridge (4) needing to be closed through the corresponding hanging piece groups (19).
3. The construction method for the closure pouring of the closure section of the continuous beam bridge as claimed in claim 2, wherein the construction method comprises the following steps: the adjusting group (18) is composed of a plurality of telescopic adjusting jacks, the hanging group (19) is composed of a plurality of steel hanging strips, the supporting group (20) is composed of a plurality of groups of supporting beams, and one group of supporting beams are respectively hung on the hanging supporting beam (13) through two steel hanging strips under the matching of the two telescopic adjusting jacks.
4. The construction method for closure pouring of the closure section of the continuous beam bridge according to claim 3, wherein the construction method comprises the following steps: every a set of support beam group divide equally and do not include a set of under bracing I-steel (21) and a set of support I-steel (22) that goes up, under bracing I-steel (21) arrange the bottom surface department at two tip that continuous beam bridge (4) need close the dragon through corresponding steel suspender, last support I-steel (22) and under bracing I-steel (21) position suit arrange on the top surface of two tip, still be provided with well jib group (23) in the middle part of waiting to close dragon section concrete (28) in continuous beam bridge (4), the upper end of well jib group (23) is worn to overlap on last support I-steel (22), the lower extreme of well jib group (23) is worn to overlap on under bracing I-steel (21).
5. The construction method for closure pouring of the closure section of the continuous beam bridge according to claim 4, wherein the construction method comprises the following steps: the lower supporting I-steel (21) comprises supporting lower I-steel (24) located at two ends and connecting lower I-steel (25) located in the middle, two groups of rear lower cross beams (26) and two groups of front lower cross beams (27) are further arranged below the lower supporting I-steel (21) respectively, the supporting lower I-steel (24) at the two ends is arranged on the bottom surfaces of two ends, needing to be closed, of the continuous beam bridge (4) respectively through the corresponding rear lower cross beams (26) and the corresponding front lower cross beams (27) under the matching of the embedded anchor rods and the steel hanging strips, and the connecting lower I-steel (25) in the middle is arranged below concrete (28) to be closed in the matching of the upper supporting I-steel (22) through a middle hanging rod group (23).
6. The construction method for closure pouring of the closure section of the continuous beam bridge according to claim 1, 2, 3, 4 or 5, wherein: the embedded parts comprise embedded part groups (6) and supporting guide part groups (7), the supporting guide part groups (7) are arranged at the end parts of the continuous beam bridge (4) needing to be closed through the embedded part groups (6), the basket hanging bracket is arranged on the supporting guide part groups (7),
the embedded part group (6) comprises a plurality of sets of embedded rail anchoring ribs, the supporting guide part group (7) comprises two sets of walking rail groups, the two sets of walking rail groups are respectively arranged at the end part of the continuous beam bridge (4) needing to be closed through the corresponding embedded rail anchoring ribs, and the basket hanging supports are respectively and correspondingly arranged on the walking rail groups.
7. The construction method for closure pouring of the closure section of the continuous beam bridge according to claim 6, wherein the construction method comprises the following steps: every set walking track group divide equally and do not include walking track (8), bottom trabecula (9) and bottom track owner sleeper beam (10), walking track (8) arrange on the corresponding tip of continuous girder bridge (4) that need close the dragon simultaneously through corresponding bottom trabecula (9) and corresponding bottom track owner sleeper beam (10) respectively, bottom track owner sleeper beam (10) be located the inboard of the corresponding tip of continuous girder bridge (4), the basket support of hanging correspond respectively arrange on corresponding walking track (8).
8. The construction method for closure pouring of the closure section of the continuous beam bridge according to claim 7, wherein the construction method comprises the following steps: the basket hanging support comprises two groups of supporting type hanging truss groups (11), each group of the supporting type hanging truss groups (11) are respectively arranged on the corresponding end parts of the continuous girder bridge (4) needing to be closed through the corresponding walking track groups under the matching of the corresponding embedded track anchoring ribs of the embedded group (6), and the hanging group (19) is arranged between the two end parts of the continuous girder bridge (4) needing to be closed through each group of the supporting type hanging truss groups (11).
9. The construction method for closure pouring of the closure section of the continuous beam bridge according to claim 8, wherein the construction method comprises the following steps: each group of the supporting type hanging truss group (11) at least comprises a hanging truss (12) and a hanging support beam (13), the hanging truss (12) is provided with a protective ladder stand (14) and a safety protective guard (15), the hanging support beam (13) is arranged on a hanging support point of the end part of the hanging truss (12) extending out of the continuous beam bridge (4), and the hanging truss (12) is arranged on the corresponding walking track (8) through the bottom of the hanging truss.
10. The construction method for closure pouring of the closure section of the continuous beam bridge according to claim 9, wherein: each hanging truss (12) is composed of a prismatic supporting hanging rack with a projection in a vertical plane in a parallelogram shape, a supporting upright post (16) is arranged on the short diagonal line of the prismatic supporting hanging rack, the prismatic supporting hanging rack extends out of the end part of the continuous beam bridge (4) through the upper end of the long diagonal line of the prismatic supporting hanging rack, and the hanging supporting point is positioned at the far end of the parallel edge on the prismatic supporting hanging rack; and the far ends of the parallel edges below the prismatic support hanging rack are also provided with rear anchor beams (17), and the corresponding pre-embedded rail anchoring ribs are fixedly connected with the prismatic support hanging rack through the rear anchor beams (17).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310001917.2A CN115821800A (en) | 2023-01-03 | 2023-01-03 | Construction method for closure pouring of closure section of continuous beam bridge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310001917.2A CN115821800A (en) | 2023-01-03 | 2023-01-03 | Construction method for closure pouring of closure section of continuous beam bridge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115821800A true CN115821800A (en) | 2023-03-21 |
Family
ID=85519978
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310001917.2A Pending CN115821800A (en) | 2023-01-03 | 2023-01-03 | Construction method for closure pouring of closure section of continuous beam bridge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115821800A (en) |
-
2023
- 2023-01-03 CN CN202310001917.2A patent/CN115821800A/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100476076C (en) | Mobile integral construction platform, construction method thereof and special sling for the same | |
| CN102094392B (en) | Lower supported hanging basket in bridge construction and application thereof | |
| CN104695337B (en) | Self-lifting sliding and turnover construction system and construction method | |
| CN110331668A (en) | A kind of back-cable-free cable-stayed bridge inclined in two-way V-shaped bridge tower construction method | |
| CN110453613B (en) | Full-section one-step suspension casting construction method for large-span beam bridge box girder | |
| CN101781878A (en) | Integral lifting template of main pylon of single-pylon cable-stayed bridge without dorsal cables and lifting construction method thereof | |
| CN101324055A (en) | Lifting equipment and method of box girder integral steel reinforcement framework | |
| CN105239510A (en) | Dismounting beam support used for high pier small-radius curve cast-in-situ box beam and construction method | |
| CN212714544U (en) | Rhombus is hung basket and is retreated and demolishd horizontal extension reinforcement construction structure | |
| CN111485500A (en) | Transverse lengthening reinforcing construction method and structure for retreating and dismantling of rhombic hanging basket | |
| CN111893889A (en) | Main bridge closure section construction method | |
| CN114808722A (en) | Construction method of cable-stayed bridge reinforced concrete main beam | |
| CN110468743B (en) | Movable hanging bracket for transformation of old bridge pier cap and construction method | |
| CN109881587B (en) | Integral installation method of main tower upper cross beam support in strong wind environment | |
| CN214362953U (en) | Single-column pier reinforcing structure for improving bridge anti-overturning capacity | |
| CN113373815A (en) | Construction method for on-site wet joint of prefabricated bent cap | |
| CN210766433U (en) | Trapezoidal hanging basket structure | |
| CN211420881U (en) | Movable formwork for concrete construction of overhanging wing plate of steel-concrete composite beam | |
| CN201972099U (en) | Through type hanging basket in bridge construction | |
| CN112267390A (en) | Single-column pier reinforcing structure for improving bridge anti-overturning capacity | |
| CN201649651U (en) | Large formwork support for construction of ship lock chamber | |
| CN112211112A (en) | Steel box girder installation method adopting double-guide-girder erection machine on existing bridge | |
| CN111042003A (en) | Construction method of cable-stayed bridge concrete beam combined hanging basket | |
| CN217104761U (en) | Bracket structure for continuous steel bridge main pier 0# block construction | |
| CN115821800A (en) | Construction method for closure pouring of closure section of continuous beam bridge |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |