CN113481885A - Construction method of I-shaped steel reinforcing beam for bridge - Google Patents
Construction method of I-shaped steel reinforcing beam for bridge Download PDFInfo
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- CN113481885A CN113481885A CN202110827840.5A CN202110827840A CN113481885A CN 113481885 A CN113481885 A CN 113481885A CN 202110827840 A CN202110827840 A CN 202110827840A CN 113481885 A CN113481885 A CN 113481885A
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D22/00—Methods or apparatus for repairing or strengthening existing bridges ; Methods or apparatus for dismantling bridges
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/30—Adapting or protecting infrastructure or their operation in transportation, e.g. on roads, waterways or railways
Abstract
According to the construction method of the I-shaped steel reinforcing beam for the bridge, provided by the invention, the left I-shaped steel and the right I-shaped steel are used as stress parts, the beam is fixed between the left web plate and the right web plate, the fixing plate is arranged between the left upper flange and the right upper flange, the supporting beam is arranged between the fixing plate and the fixing beam, the integral performance of the left I-shaped steel and the right I-shaped steel is realized, and the square timber, the left supporting column and the right supporting column are arranged, so that the integral stress of a stress system is realized, and the local damage is avoided.
Description
The technical field is as follows: the invention relates to the field of bridge engineering, in particular to a construction method of an I-shaped steel reinforcing beam for a bridge.
Background art: the bridge is common traffic engineering structural style, generally need set up operation platform in bridge construction process to realize the construction operation, current operation platform is more directly to set up the I-steel as the atress part on cushion cap or other atress platforms, then sets up square timber and operation platform, because the web atress district of I-steel is more weak, produces destruction easily, consequently, needs to improve the bearing structure of I-steel, in order to improve the atress performance.
The simplex word steel atress is single, and it bears the effort limited, when the condition, can set up duplex word steel structure, if the duplex word steel structure is simply assembled, it can't form wholly, and the effect is limited, is necessary to study its whole atress performance to duplex word steel structure, and full play duplex word steel's reinforcement effect improves whole atress, guarantees the intensity safety of structure.
The invention content is as follows: the invention provides a construction method of a I-shaped steel reinforcing beam for a bridge, aiming at the problems in the prior art.
The invention provides a construction method of an I-shaped steel reinforcing beam for a bridge, which adopts an I-shaped steel structure, and forms the reinforcing beam by taking the I-shaped steel as a main stress part, and is characterized in that: the reinforcing beam comprises left I-shaped steel, right I-shaped steel, square timber and a stress beam, wherein the left I-shaped steel comprises a left upper flange, a left web and a left lower flange, the right I-shaped steel comprises a right upper flange, a right web and a right lower flange, the square timber is respectively positioned on the left upper flange and the right upper flange of the left I-shaped steel and the right I-shaped steel, the stress beam is positioned on the square timber, and the construction method comprises the following steps:
s1: placing the left I-steel and the right I-steel on a lower stress platform, wherein left lower flanges and right lower flanges of the left I-steel and the right I-steel are respectively fixed on the upper surface of the lower stress platform, left webs and right webs of the left I-steel and the right I-steel are mutually vertical, and a gap is reserved between the left lower flange and the right lower flange;
s2: a fixed beam is arranged between the left web and the right web, the left end of the fixed beam is fixedly connected with the left web, the right end of the fixed beam is fixedly connected with the right web, and the fixed beam is horizontally arranged;
s3: a fixing plate is arranged between the left upper flange and the right upper flange, the upper surface of the fixing plate is flush with the lower surfaces of the left upper flange and the left lower flange, the left end of the fixing plate is fixedly connected with the right end of the left upper flange through a left fixing bolt, and the right end of the fixing plate is fixedly connected with the left end of the right upper flange through a right fixing bolt;
s4: a supporting beam, a left inclined supporting rod and a right inclined supporting rod are arranged between the fixed beam and the fixed plate, wherein the supporting beam is vertically arranged, the upper part of the supporting beam is fixedly connected with the lower surface of the fixed plate, the lower part of the supporting beam is fixedly connected with the upper surface of the fixed beam, the upper part of the left inclined supporting rod is fixedly connected with the lower surface of the left side of the fixed plate, the lower part of the left inclined supporting rod is fixedly connected with the joint of the fixed beam and the left web plate, the upper part of the right inclined supporting rod is fixedly connected with the lower surface of the right side of the fixed plate, and the lower part of the right inclined supporting rod is fixedly connected with the joint of the fixed beam and the right web plate;
s5: the upper surface of the left upper flange is provided with a plurality of square timbers, the upper surface of the right upper flange is provided with a plurality of square timbers, the square timbers on the left upper flange are flush with the square timbers on the right upper flange, the fixed plate is provided with a left support column and a right support column, a gap is arranged between the left support column and the right support column, and the upper surfaces of the left support column and the right support column are flush with the upper surfaces of the square timbers;
s6: stress beams are arranged on the upper surfaces of the square timber, the left supporting column and the right supporting column, the left end of each stress beam is positioned on the left side of the left end of the left upper flange, and the right end of each stress beam is positioned on the right side of the right end of the right upper flange;
s7: the left end of atress roof beam sets up left sloping the right-hand member of atress roof beam sets up right sloping, the upper end of left side sloping with the atress roof beam is located the lower fixed surface of the left side part of left side top flange left end is connected, the lower extreme of left side sloping with the left fixed surface on left bottom flange is connected, the upper end of right side sloping with the atress roof beam is located the lower fixed surface of the right side part of right side top flange right-hand member is connected, the lower extreme of right side sloping with the upper fixed surface on right side bottom flange is connected.
Preferably, the center lines of the left support column and the right support column in the vertical direction are respectively located on the left side and the right side of the center line of the support beam in the vertical direction.
Preferably, a support member is provided between the reinforcing beam and the left and right lower flanges.
Preferably, the square timbers on the left upper flange are arranged at equal intervals, and the square timbers on the right upper flange are arranged at equal intervals.
Preferably, the left oblique beam and the right oblique beam can be symmetrically or asymmetrically arranged.
Preferably, the left oblique beam and the right oblique beam are made of steel.
The working principle of the invention is as follows:
double I-shaped steels are arranged as stress parts, and the double I-shaped steels are utilized to improve the stress transmission effect, so that the web plate damage caused by stress concentration of single I-shaped steel is avoided;
the fixing device is characterized in that a fixing beam is arranged between a left web plate and a right web plate, the left I-shaped steel and the right I-shaped steel are connected into a whole to avoid local stress, a fixing plate is arranged between a left upper flange and a right upper flange, a left fixing bolt and a right fixing bolt are arranged between the fixing plate and the left upper flange as well as between the fixing plate and the right upper flange to realize the fixation of the fixing plate and the left upper flange as well as between the fixing plate and the fixing beam, and a supporting beam, a left inclined supporting rod and a right inclined supporting rod are arranged between the fixing plate and the fixing beam to form a hyperstatic supporting stress system and also transmit the acting force of the fixing plate to the fixing beam and the left and right web plates;
the square wood is arranged on the left upper flange and the right upper flange, the left supporting column and the right supporting column are arranged on the fixed plate to form an integral stress system, the stress beams are arranged on the square wood, the left supporting column and the right supporting column, after being stressed, the stress beams uniformly transmit the acting force to the square wood, the left supporting column and the right supporting column transmit the acting force to the fixed plate, the fixed plate is fixedly connected with the left upper flange and the right upper flange to form the integral stress system, and the lower part of the fixed plate is connected with the left web plate, the right web plate and the fixed beam through the supporting beam, the left inclined supporting rod and the right inclined supporting rod, so that the stress system can ensure the dispersion of the acting force of the stress beams, avoid local stress, and has better supporting effect;
the left supporting column and the right supporting column can be selected to be rubber column structures, flexible stress can be achieved through the rubber column structures, local rigid damage can be avoided when the stress beam transmits acting force downwards through the rubber columns, elastic change is borne by the flexible columns, and stress effects of the structures can be guaranteed.
The left end and the right end of the stress beam are located outside the left upper flange and the right upper flange, the two sides of the stress beam are connected with the left lower flange and the right lower flange respectively to form a split structure system, the left oblique beam and the right oblique beam can be of a prestress reinforcing structure to form a tension effect on the stress beam, the structure is prevented from being displaced, and the whole stress of the structure can be effectively guaranteed.
The invention has the advantages that:
according to the construction method of the I-shaped steel reinforcing beam for the bridge, provided by the invention, the left I-shaped steel and the right I-shaped steel are used as stress parts, the beam is fixed between the left web plate and the right web plate, the fixing plate is arranged between the left upper flange and the right upper flange, the supporting beam is arranged between the fixing plate and the fixing beam, the integral performance of the left I-shaped steel and the right I-shaped steel is realized, and the square timber, the left supporting column and the right supporting column are arranged, so that the integral stress of a stress system is realized, and the local damage is avoided.
Description of the drawings:
FIG. 1 is a schematic structural view of the present invention;
fig. 2 is a schematic view of the arrangement of the fixing plate and the fixing beam.
The specific implementation mode is as follows: the structure defined in the present invention will be explained in detail with reference to the drawings attached to the specification.
The invention provides a construction method of an I-shaped steel reinforcing beam for a bridge, which adopts an I-shaped steel structure, and forms the reinforcing beam by taking the I-shaped steel as a main stress part, and is characterized in that: the reinforcing beam comprises a left I-steel 1, a right I-steel 2, a square timber 3 and a stress beam 4, wherein the left I-steel 1 comprises a left upper flange 11, a left web 12 and a left lower flange 13, the right I-steel 2 comprises a right upper flange 21, a right web 22 and a right lower flange 23, the square timber 3 is respectively positioned on the left upper flange 11 and the right upper flange 21 of the left I-steel 1 and the right I-steel 2, the stress beam 4 is positioned on the square timber 3, and the construction method comprises the following steps:
s1: placing the left I-steel 1 and the right I-steel 2 on a lower stress platform 5, wherein a left lower flange 13 and a right lower flange 23 of the left I-steel 1 and the right I-steel 2 are respectively fixed on the upper surface of the lower stress platform 5, a left web 12 and a right web 22 of the left I-steel 1 and the right I-steel 2 are mutually vertical, and a gap is reserved between the left lower flange 13 and the right lower flange 23;
s2: a fixed beam 6 is arranged between the left web 12 and the right web 22, the left end of the fixed beam 6 is fixedly connected with the left web 12, the right end of the fixed beam 6 is fixedly connected with the right web 22, and the fixed beam 6 is horizontally arranged;
s3: a fixing plate 7 is arranged between the left upper flange 11 and the right upper flange 21, the upper surface of the fixing plate 7 is flush with the lower surfaces of the left upper flange 11 and the left lower flange 13, the left end of the fixing plate 7 is fixedly connected with the right end of the left upper flange 11 through a left fixing bolt 8, and the right end of the fixing plate 7 is fixedly connected with the left end of the right upper flange 21 through a right fixing bolt 9;
s4: a supporting beam 61, a left inclined supporting rod 62 and a right inclined supporting rod 63 are arranged between the fixed beam 6 and the fixed plate 7, wherein the supporting beam 61 is vertically arranged, the upper part of the supporting beam 61 is fixedly connected with the lower surface of the fixed plate 7, the lower part of the supporting beam is fixedly connected with the upper surface of the fixed beam 6, the upper part of the left inclined supporting rod 62 is fixedly connected with the lower surface of the left side of the fixed plate 7, the lower part of the left inclined supporting rod 62 is fixedly connected with the joint of the fixed beam 6 and the left web 12, the upper part of the right inclined supporting rod 63 is fixedly connected with the lower surface of the right side of the fixed plate 7, and the lower part of the right inclined supporting rod 63 is fixedly connected with the joint of the fixed beam 6 and the right web 22;
s5: a plurality of square timbers 3 are arranged on the upper surface of the left upper flange 11, a plurality of square timbers 3 are arranged on the upper surface of the right upper flange 21, the square timbers 3 on the left upper flange 11 are flush with the square timbers 3 on the right upper flange 21, a left support column 101 and a right support column 102 are arranged on the fixing plate 7, a gap is arranged between the left support column 101 and the right support column 102, and the upper surfaces of the left support column 101 and the right support column 102 are flush with the upper surfaces of the square timbers 3;
s6: stress beams 4 are arranged on the upper surfaces of the square timber 3, the left supporting column 101 and the right supporting column 102, the left ends of the stress beams 4 are positioned on the left side of the left end of the left upper flange 11, and the right ends of the stress beams 4 are positioned on the right side of the right upper flange 21;
s7: the left end of the stress beam 4 is provided with a left oblique beam 14, the right end of the stress beam 4 is provided with a right oblique beam 15, the upper end of the left oblique beam 14 is fixedly connected with the lower surface of the left part of the left end of the left upper flange 11 on which the stress beam 4 is positioned, the lower end of the left oblique beam 14 is fixedly connected with the upper surface of the left side of the left lower flange 13, the upper end of the right oblique beam 15 is fixedly connected with the lower surface of the right part of the right end of the right upper flange 21 on which the stress beam 4 is positioned, and the lower end of the right oblique beam 15 is fixedly connected with the upper surface of the right side of the right lower flange 23.
Preferably, the center lines of the left support column 101 and the right support column 102 in the vertical direction are respectively located at the left side and the right side of the center line of the support beam 61 in the vertical direction, and the symmetrical arrangement can form a relatively balanced stress mode, so that the situation that one side of the reinforcing structure is subjected to a fixed acting force, such as pressure or tensile force, and is excessively large to cause structural damage is avoided, and if one side of the reinforcing structure is subjected to the fixed acting force, and the fixed acting force is an asymmetric structure, the left support column 101 and the right support column 102 can also be arranged into an asymmetric structure, so that the bearing of the force is realized, and the stress effect is improved;
preferably, a supporting component is arranged between the reinforcing beam and the left and right lower flanges 13 and 23, and the supporting component may be selected as a supporting connecting beam, for example, an upper supporting connecting beam and a lower supporting connecting beam are arranged, wherein the upper supporting connecting beam and the lower supporting connecting beam are arranged in parallel and are both connected between the left and right lower flanges 13 and 23, and compared with a single supporting connecting beam which is arranged separately, a truss system formed by the supporting connecting beam is more favorable for bearing acting force and improving supporting effect;
preferably, the square timbers 3 on the left upper flange 11 are arranged at equal intervals, and the square timbers 3 on the right upper flange 21 are arranged at equal intervals.
Preferably, the left oblique beam 14 and the right oblique beam 15 can be selected to be symmetrically arranged or asymmetrically arranged.
Preferably, the left oblique beam 14 and the right oblique beam 15 are made of steel, the left oblique beam 14 and the right oblique beam 15 mainly bear oblique acting force, the requirement on strength is high, the left oblique beam 14 and the right oblique beam 15 further include an upper oblique pull rod, a middle pull rod and a lower oblique pull rod, wherein threaded ends are arranged at two ends of the middle pull rod, and prestress is added by the middle pull rod.
The above-described embodiments are only preferred embodiments of the present invention, and the scope of the present invention should not be construed as being limited to the specific forms set forth in the examples, but also includes equivalent technical means which can be conceived by those skilled in the art from the present inventive concept.
Claims (6)
1. The utility model provides a method for constructing I-steel reinforcing beam for bridge, reinforcing beam adopts the I-steel structure, utilizes the I-steel to form reinforcing beam as main atress part, its characterized in that: the reinforcing beam comprises left I-shaped steel, right I-shaped steel, square timber and a stress beam, wherein the left I-shaped steel comprises a left upper flange, a left web and a left lower flange, the right I-shaped steel comprises a right upper flange, a right web and a right lower flange, the square timber is respectively positioned on the left upper flange and the right upper flange of the left I-shaped steel and the right I-shaped steel, the stress beam is positioned on the square timber, and the construction method comprises the following steps:
s1: placing the left I-steel and the right I-steel on a lower stress platform, wherein left lower flanges and right lower flanges of the left I-steel and the right I-steel are respectively fixed on the upper surface of the lower stress platform, left webs and right webs of the left I-steel and the right I-steel are mutually vertical, and a gap is reserved between the left lower flange and the right lower flange;
s2: a fixed beam is arranged between the left web and the right web, the left end of the fixed beam is fixedly connected with the left web, the right end of the fixed beam is fixedly connected with the right web, and the fixed beam is horizontally arranged;
s3: a fixing plate is arranged between the left upper flange and the right upper flange, the upper surface of the fixing plate is flush with the lower surfaces of the left upper flange and the left lower flange, the left end of the fixing plate is fixedly connected with the right end of the left upper flange through a left fixing bolt, and the right end of the fixing plate is fixedly connected with the left end of the right upper flange through a right fixing bolt;
s4: a supporting beam, a left inclined supporting rod and a right inclined supporting rod are arranged between the fixed beam and the fixed plate, wherein the supporting beam is vertically arranged, the upper part of the supporting beam is fixedly connected with the lower surface of the fixed plate, the lower part of the supporting beam is fixedly connected with the upper surface of the fixed beam, the upper part of the left inclined supporting rod is fixedly connected with the lower surface of the left side of the fixed plate, the lower part of the left inclined supporting rod is fixedly connected with the joint of the fixed beam and the left web plate, the upper part of the right inclined supporting rod is fixedly connected with the lower surface of the right side of the fixed plate, and the lower part of the right inclined supporting rod is fixedly connected with the joint of the fixed beam and the right web plate;
s5: the upper surface of the left upper flange is provided with a plurality of square timbers, the upper surface of the right upper flange is provided with a plurality of square timbers, the square timbers on the left upper flange are flush with the square timbers on the right upper flange, the fixed plate is provided with a left support column and a right support column, a gap is arranged between the left support column and the right support column, and the upper surfaces of the left support column and the right support column are flush with the upper surfaces of the square timbers;
s6: stress beams are arranged on the upper surfaces of the square timber, the left supporting column and the right supporting column, the left end of each stress beam is positioned on the left side of the left end of the left upper flange, and the right end of each stress beam is positioned on the right side of the right end of the right upper flange;
s7: the left end of atress roof beam sets up left sloping the right-hand member of atress roof beam sets up right sloping, the upper end of left side sloping with the atress roof beam is located the lower fixed surface of the left side part of left side top flange left end is connected, the lower extreme of left side sloping with the left fixed surface on left bottom flange is connected, the upper end of right side sloping with the atress roof beam is located the lower fixed surface of the right side part of right side top flange right-hand member is connected, the lower extreme of right side sloping with the upper fixed surface on right side bottom flange is connected.
2. The method of constructing a I-steel reinforcing beam for a bridge according to claim 1, wherein: the central lines of the left support column and the right support column in the vertical direction are respectively positioned at the left side and the right side of the central line of the support beam in the vertical direction.
3. The method of constructing a I-steel reinforcing beam for a bridge according to claim 1 or 2, wherein: and a supporting part is arranged between the reinforcing beam and the left lower flange and between the reinforcing beam and the right lower flange.
4. The method of constructing a I-steel reinforcing beam for a bridge according to claim 1 or 2, wherein: the square timbers on the left upper flange are arranged at equal intervals, and the square timbers on the right upper flange are arranged at equal intervals.
5. The method of constructing a I-steel reinforcing beam for a bridge according to claim 1 or 2, wherein: the left oblique beam and the right oblique beam can be symmetrically or asymmetrically arranged.
6. The method of constructing a I-steel reinforcing beam for a bridge according to claim 1 or 2, wherein: the left oblique beam and the right oblique beam can be made of steel materials.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110827840.5A CN113481885B (en) | 2021-07-18 | 2021-07-18 | Construction method of I-steel reinforced beam for bridge |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110827840.5A CN113481885B (en) | 2021-07-18 | 2021-07-18 | Construction method of I-steel reinforced beam for bridge |
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| CN113481885A true CN113481885A (en) | 2021-10-08 |
| CN113481885B CN113481885B (en) | 2023-06-30 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114182694A (en) * | 2021-12-27 | 2022-03-15 | 黄河水利委员会黄河水利科学研究院 | Gate beam reinforcing and supporting device |
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| CN202416183U (en) * | 2011-12-23 | 2012-09-05 | 中铁十九局集团第五工程有限公司 | Bent cap collar-clamp type cast support |
| CN203923913U (en) * | 2014-05-19 | 2014-11-05 | 东风设计研究院有限公司 | The load formula carrier structure of Bridge High-pier bent cap |
| CN207419287U (en) * | 2017-11-10 | 2018-05-29 | 长安大学 | A kind of steel construction combined member for being used to replace bridge pad |
| CN211036639U (en) * | 2019-09-20 | 2020-07-17 | 中国建筑第七工程局有限公司 | Municipal administration road local reinforcement structure |
| CN212247894U (en) * | 2020-05-17 | 2020-12-29 | 北京市政建设集团有限责任公司 | A concrete placement support device for steel-concrete composite beam |
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2021
- 2021-07-18 CN CN202110827840.5A patent/CN113481885B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202416183U (en) * | 2011-12-23 | 2012-09-05 | 中铁十九局集团第五工程有限公司 | Bent cap collar-clamp type cast support |
| CN203923913U (en) * | 2014-05-19 | 2014-11-05 | 东风设计研究院有限公司 | The load formula carrier structure of Bridge High-pier bent cap |
| CN207419287U (en) * | 2017-11-10 | 2018-05-29 | 长安大学 | A kind of steel construction combined member for being used to replace bridge pad |
| CN211036639U (en) * | 2019-09-20 | 2020-07-17 | 中国建筑第七工程局有限公司 | Municipal administration road local reinforcement structure |
| CN212247894U (en) * | 2020-05-17 | 2020-12-29 | 北京市政建设集团有限责任公司 | A concrete placement support device for steel-concrete composite beam |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114182694A (en) * | 2021-12-27 | 2022-03-15 | 黄河水利委员会黄河水利科学研究院 | Gate beam reinforcing and supporting device |
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