CN204715224U - A kind of case beam reinforcing construction based on i iron diaphragm - Google Patents
A kind of case beam reinforcing construction based on i iron diaphragm Download PDFInfo
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- CN204715224U CN204715224U CN201520365421.4U CN201520365421U CN204715224U CN 204715224 U CN204715224 U CN 204715224U CN 201520365421 U CN201520365421 U CN 201520365421U CN 204715224 U CN204715224 U CN 204715224U
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Abstract
The utility model discloses a kind of case beam reinforcing construction based on i iron diaphragm, comprise multiple steel plate and concrete composite formula ruggedized construction treated consolidate girder and reinforce; Treat that consolidate girder is spliced by multi-disc case beam, multiple steel plate and concrete composite formula ruggedized construction is laid on multi-disc case beam respectively and it is connected as one by one or more transverse connection structure; Transverse connection structure is divided into multiple tracks diaphragm, and per pass diaphragm is all connected between adjacent two steel plate and concrete composite formula ruggedized constructions; Steel plate and concrete composite formula ruggedized construction comprises steel jacket box and concrete structure; Diaphragm comprises the i iron that a top junction steel plate, two, left and right end junction steel plate and multiple tracks are laid from front to back, and multiple tracks i iron is all laid along direction across bridge.The utility model structure is simple, reasonable in design and easy construction, consolidation effect are good, effectively can improve case beam lateral connection rigidity, and can not cause damage to case beam.
Description
Technical field
The utility model belongs to case beam reinforcing technique field, especially relates to a kind of case beam reinforcing construction based on i iron diaphragm.
Background technology
China's speedway Large scale construction starts from the mid-90 in last century, current many local roads bridge has runed nearly 30 years, even reaches 40-50, has reached or close to design reference period, or there is a variety of causes and cause Structural defect and damage, all need to carry out maintenance and reinforcement.According to Second National Highway General Survey statistics, in domestic 27.8 ten thousand highway bridges, three, four classes need repairing reinforce bridge account for about 10%.In all kinds bridge of current appearance, prefabricated PC concrete box-beam bridge is bridge type conventional in Bridges in Our Country engineering.It is simple that prefabricated PC concrete box-beam bridge has form of structure, little, the prefabricated convenience of building height, large by material economy, bending resistance shear stiffness, be easy to the feature such as batch production and standardized construction, and monolithic case beam is transporting and good stability in hoisting process.Be connected with diaphragm by cast-in-place wet seam between each case beam transverse direction in the girder of prefabricated PC concrete box-beam bridge, and multi-disc case beam is connected to form entirety, Local Loads transverse distribution on carriageway plate is born jointly to each case beam, reduce so significantly even to avoid monolithic case beam stress, reach the object of cooperative bearing.
From the operation situation of built bridge, there are some comparatively typical diseases in PC Box Girder Structure.Investigation and analysis shows, affecting that concrete box-beam bridge normally uses with one of structural safety distinct issues is that lateral ties structure is on the weak side, causes single-beam stressed, and tracing sth. to its source is destruction or the diaphragm insufficient rigidity of diaphragm.After diaphragm or diaphragm structural deterioration, vehicular load can not transverse distribution effectively, and form single-beam stressed excessive, its harmfulness is very large and damaging range is wide, except causing case beam destruction itself, also may cause bridge pad, case beam wets the structural deteriorations such as seam.Simultaneously, because nowadays overweight vehicle is more, proof load when acting on the loading ratio design on single-beam significantly increases, case beam is under the effect of these loads, its amount of deflection increases greatly, under the repeated action of vehicular load, easily form box beam, reduce the supporting capacity of structure, affect the durability of structure.
At present, the reinforcement means of case beam diaphragm is mainly implanted and welded reinforcement the reinforcement means of formwork erection concreting, although this reinforcement means can improve the lateral connection rigidity between case beam, construct cumbersome, also can produce original structure when especially needing to implant reinforcing bar and destroy.Further, if the steel concrete volume of building is too small, then the degree improving coupling stiffness between case beam will be very little; If the steel concrete volume of building is excessive, the deadweight of bridge superstructure can be increased.Meanwhile, because this reinforcement means needs concreting, and concrete reaches predetermined strength needs certain curing time, and in curing time, need close traffic, thus the above-mentioned reinforcement means based on steel concrete diaphragm also can affect traffic.Thus, nowadays lack simple, the reasonable in design and case beam reinforcing construction based on i iron diaphragm that easy construction, consolidation effect are good of a kind of structure, it effectively can improve case beam lateral connection rigidity, and can not cause damage to case beam.
Utility model content
Technical problem to be solved in the utility model is for above-mentioned deficiency of the prior art, a kind of case beam reinforcing construction based on i iron diaphragm is provided, its structure is simple, reasonable in design and easy construction, consolidation effect are good, effectively can improve case beam lateral connection rigidity, and damage can not be caused to case beam.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is: a kind of case beam reinforcing construction based on i iron diaphragm, it is characterized in that: comprise multiple steel plate and concrete composite formula ruggedized construction treated consolidate girder and carry out reinforcing, the structure of multiple described steel plate and concrete composite formula ruggedized construction is all identical; Describedly treat that consolidate girder is spliced by multi-disc case beam, case beam described in multi-disc is along treating that the direction across bridge of consolidate girder is laid from left to right, and case beam described in multi-disc is all along treating that the vertical bridge of consolidate girder is to lay and it is all laid in same level; With described, the quantity of described steel plate and concrete composite formula ruggedized construction treats that the quantity of consolidate girder raising middle flask beam is identical, multiple described steel plate and concrete composite formula ruggedized construction is laid on case beam described in multi-disc respectively; Multiple described steel plate and concrete composite formula ruggedized construction is along treating that the direction across bridge of consolidate girder is laid in same level from left to right, multiple described steel plate and concrete composite formula ruggedized construction is fastenedly connected by one or more transverse connection structure and is integrated, described transverse connection structure is level laying and it is along treating that the direction across bridge of consolidate girder is laid, and multiple described transverse connection structure is along treating that the vertical bridge of consolidate girder is to laying from front to back; Described transverse connection structure is divided into multiple tracks diaphragm by multiple described steel plate and concrete composite formula ruggedized construction, and diaphragm described in per pass is all connected between adjacent two described steel plate and concrete composite formula ruggedized constructions;
Described steel plate and concrete composite formula ruggedized construction comprises the steel jacket box being sleeved on case beam bottom from the bottom to top and the concrete structure of building between steel jacket box and case beam in cavity, is all fastenedly connected by multiple crab-bolt between the web plate and back plate of described steel jacket box and case beam;
The end junction steel plate that described diaphragm comprises a top junction steel plate, two, left and right symmetry is laid and multiple tracks are laid in the i iron in same level from front to back, i iron described in multiple tracks is all along treating that the direction across bridge of consolidate girder is laid, and the two ends, left and right of i iron described in per pass are separately fixed on two described end junction steel plates; Described top junction steel plate is for horizontal steel plate and it is positioned at above i iron described in multiple tracks, and the top flange plate of i iron described in multiple tracks is all fixed on bottom the junction steel plate of top; Two described end junction steel plates are separately fixed on the steel jacket box of adjacent two described steel plate and concrete composite formula ruggedized constructions.
Above-mentioned a kind of case beam reinforcing construction based on i iron diaphragm, is characterized in that: the spacing in described diaphragm described in adjacent twice between i iron is 10cm ~ 15cm.
Above-mentioned a kind of case beam reinforcing construction based on i iron diaphragm, it is characterized in that: described steel jacket box is laid in side steel plate above the steel plate left and right sides, the described end by an end steel plate laid in level, two symmetries and two lateral sealing steel plates be laid in respectively above steel plate rear and front end, the described end form, two described side steel plates lay respectively at the left and right sides of case beam and spacing therebetween increases from the bottom to top gradually; Be provided with multiple tracks in described concrete structure and be laid in no-cohesive prestressed reinforcement in same level, no-cohesive prestressed reinforcement described in multiple tracks is all along treating that the vertical bridge of consolidate girder is to laying and it is all between the base plate and steel plate of the described end of case beam.
Above-mentioned a kind of case beam reinforcing construction based on i iron diaphragm, is characterized in that: two described end junction steel plates are close to respectively and are weldingly fixed on the side steel plate of adjacent two described steel jacket boxes.
Above-mentioned a kind of case beam reinforcing construction based on i iron diaphragm, it is characterized in that: be provided with many in described concrete structure from front to back and spacing limit steel bar is carried out to no-cohesive prestressed reinforcement described in multiple tracks, described limit steel bar comprises the lateral reinforcement section that a horizontal reinforcement section and two are connected to two ends, described horizontal reinforcement section left and right, described horizontal reinforcement section is positioned at bottom no-cohesive prestressed reinforcement described in multiple tracks, and two described lateral reinforcement sections lay respectively between two described side steel plates and case beam; Described horizontal reinforcement section and described lateral reinforcement Duan Jun are fixed on case beam by spacer bars, and the outer end of described spacer bars is fixed in described horizontal reinforcement section or described lateral reinforcement section and its inner and is anchored on case beam.
Above-mentioned a kind of case beam reinforcing construction based on i iron diaphragm, is characterized in that: in described diaphragm, the quantity of i iron is twice.
Above-mentioned a kind of case beam reinforcing construction based on i iron diaphragm, it is characterized in that: be fastenedly connected by multiple longitudinal stiffened steel plates between i iron described in adjacent twice in described diaphragm and be integrated, multiple described longitudinal stiffened steel plates carries out laying from left to right and it is all along treating that the vertical bridge of consolidate girder is to laying; The left and right sidewall of described longitudinal stiffened steel plates is fastenedly connected with the web of i iron described in twice respectively, and the top/bottom part of described longitudinal stiffened steel plates is fastenedly connected with the top flange plate of i iron described in twice and bottom wing listrium respectively.
Above-mentioned a kind of case beam reinforcing construction based on i iron diaphragm, is characterized in that: in described diaphragm, the bottom of i iron described in multiple tracks is all mutually concordant with the bottom of described steel jacket box.
Above-mentioned a kind of case beam reinforcing construction based on i iron diaphragm, is characterized in that: described transverse connection structure also comprises a bottom junction steel plate, and described bottom junction steel plate is for horizontal steel plate and it is positioned at immediately below diaphragm described in multiple tracks; Described in the steel jacket box of multiple described steel plate and concrete composite formula ruggedized construction and multiple tracks, the i iron of diaphragm is all fastened and fixed on the junction steel plate of bottom.
Above-mentioned a kind of case beam reinforcing construction based on i iron diaphragm, it is characterized in that: described i iron with bottom junction steel plate, end junction steel plate, be all fixedly connected with welding manner between top junction steel plate and longitudinal stiffened steel plates, is fastenedly connected by multiple described crab-bolt between described bottom junction steel plate and steel jacket box.
The utility model compared with prior art has the following advantages:
1, structure is simple, input cost is lower and easy construction, difficulty of construction are low, and the construction period is short.
2, simple, the reasonable in design and easy construction of the transverse connection structure adopted, result of use are good, effectively can improve case beam lateral connection rigidity, effectively can solve the problems such as on the weak side, the diaphragm destructible of lateral ties that case beam exists, by bottom junction steel plate, all case beams are connected for overall, effectively can reduce the problem that indivedual case beam stress is too concentrated, and then can crack of box girder be reduced, improve the durability of structure.
3, consolidation effect is good and practical value is high, the transverse connection structure adopted and steel plate and concrete composite formula ruggedized construction connect as one, jointly stressed, effectively can improve structural-load-carrying capacity, and damage can not be caused to case beam, have that good endurance, stability are high, the advantage such as good economy performance and easy construction simultaneously, and not need maintenance, can effective reduction of erection time, and reduce the impact on traffic.In addition, the utility model is adopted significantly can not to increase the deadweight of bridge superstructure.
In sum, the utility model structure is simple, reasonable in design and easy construction, consolidation effect are good, effectively can improve case beam lateral connection rigidity, and damage can not be caused to case beam, effectively can solve the problems such as construction inconvenience that existing steel concrete diaphragm reinforcement means exists, long construction period, consolidation effect be poor.
Below by drawings and Examples, the technical solution of the utility model is described in further detail.
Accompanying drawing explanation
Fig. 1 is reinforcing view of the present utility model.
Fig. 2 is the structural representation of the utility model diaphragm.
Fig. 3 is the connection status schematic diagram of i iron and top junction steel plate and bottom junction steel plate in the utility model diaphragm.
Description of reference numerals:
1-case beam; 2-steel plate and concrete composite formula ruggedized construction;
2-1-steel jacket box; 2-2-concrete structure;
2-3-no-cohesive prestressed reinforcement; 2-4-limit steel bar; 3-bottom junction steel plate;
4-i iron; 5-end junction steel plate; 6-top junction steel plate;
7-longitudinal stiffened steel plates; 8-crab-bolt; 9-spacer bars.
Detailed description of the invention
As shown in Figure 1, Figure 2 and Figure 3, the utility model comprises multiple steel plate and concrete composite formula ruggedized construction 2 treated consolidate girder and carry out reinforcing, and the structure of multiple described steel plate and concrete composite formula ruggedized construction 2 is all identical.Describedly treat that consolidate girder is spliced by multi-disc case beam 1, case beam 1 described in multi-disc along treating that the direction across bridge of consolidate girder is laid from left to right, case beam 1 described in multi-disc all along treat the vertical bridge of consolidate girder to laying and its be all laid in same level.With described, the quantity of described steel plate and concrete composite formula ruggedized construction 2 treats that the quantity of consolidate girder raising middle flask beam 1 is identical, multiple described steel plate and concrete composite formula ruggedized construction 2 is laid on case beam 1 described in multi-disc respectively.Multiple described steel plate and concrete composite formula ruggedized construction 2 is along treating that the direction across bridge of consolidate girder is laid in same level from left to right, multiple described steel plate and concrete composite formula ruggedized construction 2 is fastenedly connected by one or more transverse connection structure and is integrated, described transverse connection structure is level laying and it is along treating that the direction across bridge of consolidate girder is laid, and multiple described transverse connection structure is along treating that the vertical bridge of consolidate girder is to laying from front to back.Described transverse connection structure is divided into multiple tracks diaphragm by multiple described steel plate and concrete composite formula ruggedized construction 2, and diaphragm described in per pass is all connected between adjacent two described steel plate and concrete composite formula ruggedized constructions 2.
Described steel plate and concrete composite formula ruggedized construction 2 comprises the steel jacket box 2-1 being sleeved on case beam 1 the bottom from the bottom to top and concrete structure 2-2 built between steel jacket box 2-1 and case beam 1 in cavity, is all fastenedly connected by multiple crab-bolt 8 between described steel jacket box 2-1 and the web plate and back plate of case beam 1.
The end junction steel plate 5 that described diaphragm comprises a top junction steel plate 6, two, left and right symmetry is laid and multiple tracks are laid in the i iron 4 in same level from front to back, i iron 4 described in multiple tracks is all along treating that the direction across bridge of consolidate girder is laid, and the two ends, left and right of i iron 4 described in per pass are separately fixed on two described end junction steel plates 5.Described top junction steel plate 6 is for horizontal steel plate and it is positioned at above i iron 4 described in multiple tracks, and the top flange plate of i iron 4 described in multiple tracks is all fixed on bottom top junction steel plate 6; Two described end junction steel plates 5 are separately fixed on the steel jacket box 2-1 of adjacent two described steel plate and concrete composite formula ruggedized constructions 2.
In the present embodiment, the spacing in described diaphragm described in adjacent twice between i iron 4 is 10cm ~ 15cm.
During practice of construction, can according to specific needs, the spacing between i iron 4 described in twice adjacent in described diaphragm be adjusted accordingly.
In the present embodiment, described steel jacket box 2-1 is laid in side steel plate above the steel plate left and right sides, the described end by an end steel plate laid in level, two symmetries and two lateral sealing steel plates be laid in respectively above steel plate rear and front end, the described end form, and two described side steel plates lay respectively at the left and right sides of case beam 1 and spacing therebetween increases from the bottom to top gradually.Be provided with multiple tracks in described concrete structure 2-2 and be laid in no-cohesive prestressed reinforcement 2-3 in same level, no-cohesive prestressed reinforcement 2-3 described in multiple tracks is all along treating that the vertical bridge of consolidate girder is to laying and it is all between the base plate and steel plate of the described end of case beam 1.
During practice of construction, two described end junction steel plates 5 are close to respectively and are weldingly fixed on the side steel plate of adjacent two described steel jacket box 2-1.The top of two described end junction steel plates 5 all concordant with the top of top junction steel plate 6 and bottom the two in all described diaphragm the bottom wing listrium top horizontal of i iron 4 neat.
In the present embodiment, be provided with many in described concrete structure 2-2 from front to back and spacing limit steel bar 2-4 is carried out to no-cohesive prestressed reinforcement 2-3 described in multiple tracks, described limit steel bar 2-4 comprises the lateral reinforcement section that a horizontal reinforcement section and two are connected to two ends, described horizontal reinforcement section left and right, described horizontal reinforcement section is positioned at bottom no-cohesive prestressed reinforcement 2-3 described in multiple tracks, and two described lateral reinforcement sections lay respectively between two described side steel plates and case beam 1.Described horizontal reinforcement section and described lateral reinforcement Duan Jun are fixed on case beam 1 by spacer bars 9, and the outer end of described spacer bars 9 is fixed in described horizontal reinforcement section or described lateral reinforcement section and its inner and is anchored on case beam 1.
In the present embodiment, in described diaphragm, the quantity of i iron 4 is twice.
During actual use, can according to specific needs, the quantity of i iron 4 in described diaphragm be adjusted accordingly.
In the present embodiment, be fastenedly connected be integrated in described diaphragm described in adjacent twice between i iron 4 by multiple longitudinal stiffened steel plates 7, multiple described longitudinal stiffened steel plates 7 carries out laying from left to right and it is all along treating that the vertical bridge of consolidate girder is to laying.The left and right sidewall of described longitudinal stiffened steel plates 7 is fastenedly connected with the web of i iron described in twice 4 respectively, and the top/bottom part of described longitudinal stiffened steel plates 7 is fastenedly connected with the top flange plate of i iron described in twice 4 and bottom wing listrium respectively.
In the present embodiment, in described diaphragm, the bottom of i iron 4 described in multiple tracks is all mutually concordant with the bottom of described steel jacket box 2-1.
Meanwhile, described transverse connection structure also comprises a bottom junction steel plate 3, and described bottom junction steel plate 3 is for horizontal steel plate and it is positioned at immediately below diaphragm described in multiple tracks; Described in the steel jacket box 2-1 of multiple described steel plate and concrete composite formula ruggedized construction 2 and multiple tracks, the i iron 4 of diaphragm is all fastened and fixed on bottom junction steel plate 3.
In the present embodiment, described i iron 4 with bottom junction steel plate 3, end junction steel plate 5, be all fixedly connected with welding manner between top junction steel plate 6 and longitudinal stiffened steel plates 7, is fastenedly connected by multiple described crab-bolt 8 between described bottom junction steel plate 3 and steel jacket box 2-1.
Actually add man-hour, described bottom junction steel plate 3 is identical with the width of top junction steel plate 6.
The above; it is only preferred embodiment of the present utility model; not the utility model is imposed any restrictions; every above embodiment is done according to the utility model technical spirit any simple modification, change and equivalent structure change, all still belong in the protection domain of technical solutions of the utility model.
Claims (10)
1. the case beam reinforcing construction based on i iron diaphragm, it is characterized in that: comprise multiple steel plate and concrete composite formula ruggedized construction (2) treated consolidate girder and carry out reinforcing, the structure of multiple described steel plate and concrete composite formula ruggedized construction (2) is all identical; Describedly treat that consolidate girder is spliced by multi-disc case beam (1), case beam (1) described in multi-disc is along treating that the direction across bridge of consolidate girder is laid from left to right, and case beam (1) described in multi-disc is all along treating that the vertical bridge of consolidate girder is to lay and it is all laid in same level; With described, the quantity of described steel plate and concrete composite formula ruggedized construction (2) treats that the quantity of consolidate girder raising middle flask beam (1) is identical, multiple described steel plate and concrete composite formula ruggedized construction (2) is laid on case beam (1) described in multi-disc respectively; Multiple described steel plate and concrete composite formula ruggedized construction (2) is along treating that the direction across bridge of consolidate girder is laid in same level from left to right, multiple described steel plate and concrete composite formula ruggedized construction (2) is fastenedly connected by one or more transverse connection structure and is integrated, described transverse connection structure is level laying and it is along treating that the direction across bridge of consolidate girder is laid, and multiple described transverse connection structure is along treating that the vertical bridge of consolidate girder is to laying from front to back; Described transverse connection structure is divided into multiple tracks diaphragm by multiple described steel plate and concrete composite formula ruggedized construction (2), and diaphragm described in per pass is all connected between adjacent two described steel plate and concrete composite formula ruggedized constructions (2);
Described steel plate and concrete composite formula ruggedized construction (2) comprises the steel jacket box (2-1) being sleeved on case beam (1) bottom from the bottom to top and the concrete structure (2-2) of building between steel jacket box (2-1) and case beam (1) in cavity, is all fastenedly connected by multiple crab-bolt (8) between the web plate and back plate of described steel jacket box (2-1) and case beam (1);
The end junction steel plate (5) that described diaphragm comprises a top junction steel plate (6), two, left and right symmetry is laid and multiple tracks are laid in the i iron (4) in same level from front to back, i iron described in multiple tracks (4) is all along treating that the direction across bridge of consolidate girder is laid, and the two ends, left and right of i iron described in per pass (4) are separately fixed on two described ends junction steel plate (5); Described top junction steel plate (6) is for horizontal steel plate and it is positioned at i iron described in multiple tracks (4) top, and the top flange plate of i iron described in multiple tracks (4) is all fixed on top junction steel plate (6) bottom; Two described ends junction steel plate (5) are separately fixed on the steel jacket box (2-1) of adjacent two described steel plate and concrete composite formula ruggedized constructions (2).
2., according to a kind of case beam reinforcing construction based on i iron diaphragm according to claim 1, it is characterized in that: the spacing in described diaphragm described in adjacent twice between i iron (4) is 10cm ~ 15cm.
3. according to a kind of case beam reinforcing construction based on i iron diaphragm described in claim 1 or 2, it is characterized in that: described steel jacket box (2-1) is laid in side steel plate above the steel plate left and right sides, the described end by an end steel plate laid in level, two symmetries and two lateral sealing steel plates be laid in respectively above steel plate rear and front end, the described end form, two described side steel plates lay respectively at the left and right sides of case beam (1) and spacing therebetween increases from the bottom to top gradually; Be provided with multiple tracks in described concrete structure (2-2) and be laid in no-cohesive prestressed reinforcement (2-3) in same level, no-cohesive prestressed reinforcement described in multiple tracks (2-3) all along treat the vertical bridge of consolidate girder to laying and its be all positioned between the base plate of case beam (1) and steel plate of the described end.
4. according to a kind of case beam reinforcing construction based on i iron diaphragm according to claim 3, it is characterized in that: two described ends junction steel plate (5) are close to respectively and are weldingly fixed on the side steel plate of adjacent two described steel jacket boxes (2-1).
5. according to a kind of case beam reinforcing construction based on i iron diaphragm according to claim 3, it is characterized in that: be provided with many in described concrete structure (2-2) from front to back and spacing limit steel bar (2-4) is carried out to no-cohesive prestressed reinforcement described in multiple tracks (2-3), described limit steel bar (2-4) comprises the lateral reinforcement section that a horizontal reinforcement section and two are connected to two ends, described horizontal reinforcement section left and right, described horizontal reinforcement section is positioned at no-cohesive prestressed reinforcement described in multiple tracks (2-3) bottom, two described lateral reinforcement sections lay respectively between two described side steel plates and case beam (1), described horizontal reinforcement section and described lateral reinforcement Duan Jun are fixed on case beam (1) by spacer bars (9), and the outer end of described spacer bars (9) is fixed in described horizontal reinforcement section or described lateral reinforcement section and its inner and is anchored on case beam (1).
6., according to a kind of case beam reinforcing construction based on i iron diaphragm according to claim 1, it is characterized in that: in described diaphragm, the quantity of i iron (4) is twice.
7. according to a kind of case beam reinforcing construction based on i iron diaphragm according to claim 6, it is characterized in that: be fastenedly connected by multiple longitudinal stiffened steel plates (7) between i iron (4) described in adjacent twice in described diaphragm and be integrated, multiple described longitudinal stiffened steel plates (7) carries out laying from left to right and it is all along treating that the vertical bridge of consolidate girder is to laying; The left and right sidewall of described longitudinal stiffened steel plates (7) is fastenedly connected with the web of i iron described in twice (4) respectively, and the top/bottom part of described longitudinal stiffened steel plates (7) is fastenedly connected with the top flange plate of i iron described in twice (4) and bottom wing listrium respectively.
8., according to a kind of case beam reinforcing construction based on i iron diaphragm described in claim 1 or 2, it is characterized in that: in described diaphragm, the bottom of i iron (4) described in multiple tracks is all mutually concordant with the bottom of described steel jacket box (2-1).
9. according to a kind of case beam reinforcing construction based on i iron diaphragm according to claim 8, it is characterized in that: described transverse connection structure also comprises bottom junction steel plate (3), and described bottom junction steel plate (3) is for horizontal steel plate and it is positioned at immediately below diaphragm described in multiple tracks; Described in the steel jacket box (2-1) of multiple described steel plate and concrete composite formula ruggedized construction (2) and multiple tracks, the i iron (4) of diaphragm is all fastened and fixed on bottom junction steel plate (3).
10. according to a kind of case beam reinforcing construction based on i iron diaphragm according to claim 9, it is characterized in that: described i iron (4) with bottom junction steel plate (3), end junction steel plate (5), be all fixedly connected with welding manner between top junction steel plate (6) and longitudinal stiffened steel plates (7), is fastenedly connected by multiple described crab-bolt (8) between described bottom junction steel plate (3) and steel jacket box (2-1).
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| CN106049893A (en) * | 2016-05-31 | 2016-10-26 | 浙江大学 | Extendable anchor rod device and method for reinforcing section through anchoring of anchor rod device |
| CN105951613A (en) * | 2016-07-11 | 2016-09-21 | 北京市市政工程研究院 | Combined type pre-stress steel cross diaphragm beam, reinforcing system and reinforcing method thereof |
| CN107227694A (en) * | 2017-07-27 | 2017-10-03 | 长安大学 | A kind of concrete-bridge transversely strengthening construction |
| CN109610349A (en) * | 2018-12-29 | 2019-04-12 | 北京工业大学 | A kind of the PC box girder web ruggedized construction and method of built-in tiltedly netting piece |
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| CN109629463A (en) * | 2019-01-23 | 2019-04-16 | 平顶山市公路交通勘察设计院 | A kind of bridge end ruggedized construction and bridge plate end crack treatment technique |
| CN109629463B (en) * | 2019-01-23 | 2023-12-08 | 河南中平交科研究设计院有限公司 | Bridge end reinforcing structure and bridge plate end crack treatment process |
| CN110904864A (en) * | 2019-12-10 | 2020-03-24 | 中铁大桥（南京）桥隧诊治有限公司 | Steel-concrete combined system for improving bearing capacity of concrete box girder bridge |
| CN110904864B (en) * | 2019-12-10 | 2021-11-05 | 中铁桥隧技术有限公司 | Steel-concrete combined system for improving bearing capacity of concrete box girder bridge |
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