CN110878519A - Emergency bridge structure for rapid assembling construction and construction method thereof - Google Patents
Emergency bridge structure for rapid assembling construction and construction method thereof Download PDFInfo
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- CN110878519A CN110878519A CN201911086123.0A CN201911086123A CN110878519A CN 110878519 A CN110878519 A CN 110878519A CN 201911086123 A CN201911086123 A CN 201911086123A CN 110878519 A CN110878519 A CN 110878519A
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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
- E01D15/00—Movable or portable bridges; Floating bridges
- E01D15/12—Portable or sectional bridges
- E01D15/133—Portable or sectional bridges built-up from readily separable standardised sections or elements, e.g. Bailey bridges
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Abstract
The invention discloses an emergency bridge structure for rapid assembly construction and a construction method thereof. Compared with the prior art, the steel structure bridge has the remarkable characteristics of convenience in construction, easiness in replacement and convenience in transportation, and not only can be used as a street overpass, a landscape gallery bridge and the like, but also can be used as a temporary bridge.
Description
Technical Field
The invention relates to an emergency bridge structure for rapid assembly construction and a construction method thereof, and belongs to the field of bridge engineering.
Background
The bridge is a functional structure and a three-dimensional modeling art project, and not only is a landscape in a city, but also has remarkable times characteristic in many times. For the pedestrian bridge, the pedestrian bridge has the requirements on the use function, and simultaneously, the pedestrian bridge is fused with the surrounding environment and has the landscape effect.
The common overpass mainly comprises an overpass with a suspended structure, an overpass with a bearing structure and an overpass with a mixed structure. In addition to the above three structures, some cities use suspension bridge and cable-stayed bridge structures for the construction of the overpass in certain blocks, but the overpass with the special structure is mostly expensive.
The steel structure is adopted as the pedestrian overpass, so that the pedestrian overpass has enough safety, and the shape can have urban characteristics and landscape effects. In view of this, provide one kind and be applicable to the city view requirement, simultaneously low in cost, the construction operation of being convenient for, novel steel construction bridge easy to change is very practical meaning.
China is a country with multiple earthquakes and natural disasters, and lives and properties of people are threatened by earthquakes, flood disasters and the like for a long time. The bridge is used as an important social infrastructure and has the characteristics of large investment, strong commonality and difficult maintenance and management. The impact of damage and collapse of bridge facilities in earthquakes or floods has already exceeded the financial expense of the construction and maintenance of the bridges themselves. The bridge is also an important component of emergency rescue and disaster relief, and the damage under the action of earthquake or flood impact causes great difficulty in emergency rescue and disaster relief.
Therefore, when the emergency rescue and relief work is carried out in an earthquake area or a flood area, if bridge facilities are damaged, the rescue vehicles and personnel cannot arrive at the destination in time. Temporary bridges are urgently needed to be erected for bridge facilities damaged in disasters. The required temporary bridge has the characteristics of large bearing capacity, safety, reliability, quick installation and disassembly, reusability and the like. The temporary bridge which is suitable for emergency rescue and disaster relief is provided, and the temporary bridge has very important practical significance.
Disclosure of Invention
The technical problem to be solved by the invention is to provide an emergency bridge structure for rapid assembly construction and a construction method thereof aiming at the defects of the prior art.
In order to solve the technical problems, the invention adopts the technical scheme that:
the utility model provides an assemble emergent bridge structure of construction fast, includes horizontal bridge to or along with a plurality of constitutional unit of mutual concatenation of bridge, a constitutional unit includes the last steel sheet and the lower steel sheet that correspond from top to bottom, goes up the steel sheet and is parallel to each other with lower steel sheet, is located and is provided with two fore-and-aft belly steel sheets in the constitutional unit of horizontal bridge to both sides, and two belly steel sheets are fixed in the horizontal bridge of steel sheet and lower steel sheet respectively to both sides.
As a further preferable scheme, the plate surface of the upper steel plate is provided with bolt holes for connecting with an abdominal steel plate, four edges of the upper steel plate extend downwards to form strip-shaped edges, and the strip-shaped edges are provided with bolt holes for connecting with the strip-shaped edges of the adjacent upper steel plates; and a cross reinforcing rib is arranged in the upper steel plate.
As a further preferable scheme, the plate surface of the lower steel plate is provided with bolt holes for being connected with an abdominal steel plate, four edges of the lower steel plate extend upwards to form strip-shaped edges, and the strip-shaped edges are provided with bolt holes connected with the strip-shaped edges of the adjacent lower steel plates.
As a further preferable scheme, the abdomen steel plate has an octagonal structure, wherein strip-shaped edges are arranged on four opposite edges; the strip-shaped edge of the upper part of the abdominal steel plate is provided with a bolt hole, and the bolt hole corresponds to the bolt hole on the plate surface of the upper steel plate; the strip-shaped edge of the lower part of the belly steel plate is provided with a bolt hole, and the bolt hole corresponds to the bolt hole on the surface of the lower steel plate; the bolt hole has been seted up on the bar limit of belly steel sheet lateral part, and the bolt hole of lateral part corresponds with the bolt hole of adjacent belly steel sheet lateral part.
As a further preferable scheme, a plurality of end steel plates which are arranged in parallel are arranged at the end part of the overpass structure along the bridge direction, and bolt holes are formed in the upper edge and the lower edge of each end steel plate; the bolt holes at the upper part of the end steel plate correspond to the bolt holes at the strip-shaped edge of the upper steel plate; the bolt holes at the lower part of the end steel plate correspond to the bolt holes at the strip-shaped edge of the lower steel plate; bolt holes are also formed in the side portions of the end steel plates located on the side portions of the belly steel plates, and the bolt holes correspond to the bolt holes in the strip-shaped edges of the side portions of the belly steel plates.
As a further preferable scheme, at least one transverse partition plate is arranged in the transverse bridge direction in the overpass structure, the lower edge of the transverse partition plate is provided with a bolt hole, and the bolt hole corresponds to the bolt hole of the lower steel plate strip-shaped edge at two sides of the transverse partition plate along the bridge direction; the transverse partition plate located on the side portion of the abdomen steel plate is also provided with bolt holes in the side portion, and the bolt holes correspond to bolt holes in strip-shaped edges of the abdomen steel plate at two ends of the transverse partition plate along the bridge.
Preferably, the corresponding bolt holes are fixedly connected by bolts and nuts.
As a further preferred solution, the transverse bridge of the overpass structure is arranged with at least four structural units.
As a further preferable scheme, the piezoelectric sensors are disposed between the strip-shaped edge of the upper portion of the abdominal steel plate and the upper steel plate surface, between the strip-shaped edge of the lower portion of the abdominal steel plate and the lower steel plate surface, between the strip-shaped edge of the lateral portion of the abdominal steel plate and the strip-shaped edge of the lateral portion of the adjacent abdominal steel plate, between the strip-shaped edge of the upper steel plate and the strip-shaped edge of the adjacent upper steel plate, between the strip-shaped edge of the lower steel plate and the strip-shaped edge of the adjacent lower steel plate, between the strip-shaped edge of the lateral portion of the abdominal steel plate and the strip-shaped edge of the lower steel plate, between the strip-shaped edge of the end steel plate and the strip-shaped edge of the lateral portion of the.
A construction method of an emergency bridge structure for rapid assembling construction comprises the following steps:
the method comprises the following steps: prefabricating corresponding quantities of upper steel plates, lower steel plates, belly steel plates, end steel plates and transverse clapboards in a factory, and assembling a structural unit with the belly steel plates in advance in the factory;
step two: erecting a temporary support structure or a temporary support beam at the position for installing the bridge, and placing the structural unit with the belly steel plate and the structural unit at corresponding positions on the temporary support or the temporary support beam;
step three: installing piezoelectric sensors between the strip-shaped edge at the upper part of the abdomen steel plate and the upper steel plate surface and between the strip-shaped edge at the lower part of the abdomen steel plate and the lower steel plate surface, and fixedly connecting the abdomen steel plate with the upper steel plate and the lower steel plate respectively by adopting high-strength bolts;
step four: installing a piezoelectric sensor between the strip-shaped edge of the side part of the abdomen steel plate and the strip-shaped edge of the side part of the adjacent abdomen steel plate, and fixedly connecting the two adjacent abdomen steel plates by adopting a high-strength bolt;
step five: installing a piezoelectric sensor between the strip-shaped edge of the upper steel plate and the strip-shaped edge of the adjacent upper steel plate, and fixedly connecting the two adjacent upper steel plates by adopting a high-strength bolt;
step six: the piezoelectric sensor is arranged between the strip-shaped edge of the lower steel plate and the strip-shaped edge of the adjacent lower steel plate, and the two adjacent lower steel plates are fixedly connected by adopting a high-strength bolt;
step seven: installing piezoelectric sensors between the transverse partition plate and the strip-shaped edge of the side part of the abdomen steel plate and between the transverse partition plate and the strip-shaped edge of the lower steel plate, and fixedly connecting the transverse partition plate with the abdomen steel plate and the lower steel plate respectively by adopting high-strength bolts;
step eight: the piezoelectric sensors are arranged between the strip-shaped edges of the end steel plate and the upper steel plate, between the strip-shaped edges of the side part of the end steel plate and the abdomen steel plate and between the strip-shaped edges of the end steel plate and the lower steel plate, and the end steel plate is fixedly connected with the upper steel plate, the abdomen steel plate and the lower steel plate respectively by high-strength bolts.
Compared with the prior art, the invention has the following advantages:
(1) the connection of the invention is realized only by high-strength bolts, which is not only beneficial to controlling the construction quality, but also beneficial to transportation and use. Specifically, in the transportation process, in order to break up the whole process into parts, only the components with smaller volume are needed to be transported, and the components with larger size are not needed to be transported; when the high-strength bolt is installed and used, all components can be simply and quickly assembled through the high-strength bolt in a process of changing parts into whole.
(2) The high-strength bolt connection mode adopted by the invention is formed by connecting the high-strength bolt, the piezoelectric sensor and the member. The piezoelectric sensor is a piezoelectric film sensor, has the characteristics of high sensitivity, light weight, ultra-thin property, low price and the like, and can be replaced in time if the connection of certain high-strength bolts fails under the action of long-term crowd load and the like, so that the safety of pedestrians can be ensured to the maximum extent.
(3) The regular octagonal belly structure adopts a hole opening form, so that the self weight of the structure can be reduced, the deflection caused by the self weight is greatly reduced, and the attractiveness of the bridge can be improved.
(4) The invention has strong structure replaceability, when any component in the structure is deformed or damaged, the temporary support or the bracket is erected at the damaged part, and the corresponding high-strength bolt connection is dismantled, so that the replacement can be carried out quickly and conveniently, the economic cost can be obviously reduced, the invention is economical and applicable, and the long-time interference on the traffic can not be carried out.
(5) The construction method is simple, convenient and quick, and when the temporary bridge is used as the temporary bridge, the structure is very easy to disassemble and can be repeatedly used.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic diagram of the structural elements employed in the present invention;
FIG. 2a is a schematic structural diagram of an abdominal steel plate;
FIG. 2b is a schematic view of the upper steel plate structure;
FIG. 2c is a schematic view of the structure of the lower steel plate;
FIG. 3a is a schematic structural view of an end steel plate of a structural unit with an abdominal steel plate;
FIG. 3b is a schematic structural view of an end steel plate of a structural unit without an abdomen steel plate;
FIG. 4a is a schematic view of the diaphragm structure of the structural unit with belly steel plates;
FIG. 4b is a schematic view of the diaphragm structure of the structural unit without the belly steel plate;
FIG. 5 is a schematic view of the internal structure of the present invention;
FIG. 6 is a schematic view of a mounting structure of the piezoelectric sensor;
the sensor comprises an upper steel plate 1, a lower steel plate 2, an abdomen steel plate 3, an end steel plate 4, a transverse clapboard 5, a piezoelectric sensor 6 and a cross reinforcing rib 7.
Detailed Description
The preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.
The invention utilizes the characteristics of light weight, high strength, convenient transportation and easy construction of the steel structure, and the steel structure bridge with novel modeling and high bearing capacity is assembled and formed, has good practical value and popularization and application prospect, and has the advantages of simple and convenient construction, easy transportation, convenient replacement and beautiful modeling.
Under the action of crowd load, the rectangular upper steel plate 1 transmits the load to the octagonal abdominal steel plate 3 and the octagonal lower steel plate 2 through the strong compressive resistance of the rectangular upper steel plate. Under the effect of load, go up steel sheet 1 and mainly bear the compressive stress effect, lower steel sheet 2 mainly bears the tensile stress effect, and belly steel sheet 3 then mainly bears the shear force effect, and end steel sheet 4 and diaphragm 5 bear the shear force effect equally, and adjacent belly steel sheet 3 realizes the transmission of shear force effect through the connecting piece that sets up.
As shown in figure 1, the steel structure bridge for rapid assembling construction comprises a plurality of structural units which are spliced mutually in the transverse bridge direction or along the bridge direction, a plurality of end steel plates 4 which are arranged side by side are arranged at the end part of the bridge structure along the bridge direction, and at least one transverse partition plate 5 is arranged in the transverse bridge direction in the bridge structure. The upper steel plate 1, the lower steel plate 2, the belly steel plate 3, the end steel plate 4 and the diaphragm plate 5 are connected and subjected to shear force transmission through high-strength bolt holes reserved in the connecting pieces, and the purpose of jointly bearing under the action of load can be achieved.
As shown in fig. 2, one structural unit includes an upper steel plate 1 and a lower steel plate 2 which correspond to each other up and down, the upper steel plate 1 and the lower steel plate 2 are parallel to each other, two longitudinal abdomen steel plates 3 are arranged in the structural unit located at both sides of the transverse bridge, and the two abdomen steel plates 3 are respectively fixed at both sides of the transverse bridge of the upper steel plate 1 and the lower steel plate 2. The side connecting piece is a steel plate with a reserved high-strength bolt hole channel and is connected with the steel plate in a welding mode.
As shown in fig. 2a, the abdomen steel plate 3 is formed by welding a regular octagonal steel plate with holes and four connecting pieces, wherein the connecting pieces are rectangular steel plates with reserved high-strength bolt hole channels.
As shown in fig. 2b, a high-strength bolt hole is reserved in the rectangular steel plate of the upper steel plate 1 near the plate edge, and a cross reinforcing rib 7 in the longitudinal and transverse bridge directions is arranged. High-strength bolt pore channels are reserved on the side steel plates and are connected with the steel plates in a welding mode.
As shown in fig. 2c, the rectangular steel plate of the lower steel plate 2 is provided with high-strength bolt holes near the plate edges. High-strength bolt pore channels are reserved on the side steel plates and are connected with the steel plates in a welding mode.
As shown in fig. 3a and 3b, the end steel plates 4 attached to both ends of the structural unit are divided into an end steel plate 4 connected to the upper steel plate 1, the lower steel plate 2, and the abdomen steel plate 3, and an end steel plate 4 connected to the upper steel plate 1 and the lower steel plate 2, and the joints are fixed by expansion screws.
As shown in fig. 4a and 4b, the diaphragms 5 to be mounted in the structural unit are divided into the diaphragms 5 connected to the lower steel plate 2 and the abdominal steel plate 3 and the diaphragms 5 connected only to the lower steel plate 2, and the joints are fixed by expansion screws.
As shown in fig. 5, the interior of the structure without the steel plate 1 is schematically shown.
As shown in fig. 6, the piezoelectric sensor 7 is installed between two members, which are connected together by a high-strength bolt.
The construction method of the steel structure bridge for rapid assembling construction comprises the following steps: the method comprises the following steps: prefabricating a corresponding number of upper steel plates 1, lower steel plates 2, belly steel plates 3, end steel plates 4 and transverse partition plates 5 in a factory, and assembling a structural unit with the belly steel plates 3 in advance in the factory;
step two: erecting a temporary support structure or a temporary support beam at the position for installing the bridge, and placing the structural unit with the belly steel plate 3 and the structural unit at corresponding positions on the temporary support or the temporary support beam;
step three: the piezoelectric sensors 6 are arranged between the strip-shaped edge at the upper part of the abdomen steel plate 3 and the plate surface of the upper steel plate 1 and between the strip-shaped edge at the lower part of the abdomen steel plate 3 and the plate surface of the lower steel plate 2, and the abdomen steel plate 3 is fixedly connected with the upper steel plate 1 and the lower steel plate 2 respectively by adopting high-strength bolts;
step four: the piezoelectric sensor 6 is arranged between the strip-shaped edge of the side part of the abdomen steel plate 3 and the strip-shaped edge of the side part of the adjacent abdomen steel plate 3, and the two adjacent abdomen steel plates 3 are fixedly connected by adopting a high-strength bolt;
step five: the piezoelectric sensor 6 is arranged between the strip-shaped edge of the upper steel plate 1 and the strip-shaped edge of the adjacent upper steel plate 1, and the two adjacent upper steel plates 1 are fixedly connected by adopting a high-strength bolt;
step six: the piezoelectric sensor 6 is arranged between the strip-shaped edge of the lower steel plate 2 and the strip-shaped edge of the adjacent lower steel plate 2, and the two adjacent lower steel plates 2 are fixedly connected by adopting a high-strength bolt;
step seven: the piezoelectric sensors 6 are arranged between the transverse partition plate 5 and the strip-shaped edge at the side part of the abdomen steel plate 3 and between the transverse partition plate 5 and the strip-shaped edge of the lower steel plate 2, and the transverse partition plate 5 is fixedly connected with the abdomen steel plate 3 and the lower steel plate 2 respectively by adopting high-strength bolts;
step eight: the piezoelectric sensors 6 are installed between the end steel plate 4 and the strip-shaped edges of the upper steel plate 1, between the end steel plate 4 and the strip-shaped edges of the side portion of the abdomen steel plate 3, and between the end steel plate 4 and the strip-shaped edges of the lower steel plate 2, and the end steel plate 4 is fixedly connected with the upper steel plate 1, the abdomen steel plate 3 and the lower steel plate 2 respectively by high-strength bolts.
The above-mentioned embodiments, objects, technical solutions and advantages of the present invention are further described in detail, it should be understood that the above-mentioned embodiments are only illustrative of the present invention and are not intended to limit the present invention, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The utility model provides an emergent bridge structure of construction is assembled fast which characterized in that: including horizontal bridge to or along with a plurality of constitutional unit of mutual concatenation of bridge, a constitutional unit is including last steel sheet (1) and lower steel sheet (2) that correspond from top to bottom, goes up steel sheet (1) and is parallel to each other with lower steel sheet (2), is located and is provided with two fore-and-aft belly steel sheets (3) in the constitutional unit of horizontal bridge to both sides, and two belly steel sheets (3) are fixed in the horizontal bridge of last steel sheet (1) and lower steel sheet (2) respectively to both sides.
2. The emergency bridge structure for rapid assembling construction according to claim 1, wherein: the bolt holes used for being connected with the abdominal steel plate (3) are formed in the plate surface of the upper steel plate (1), strip-shaped edges are arranged on four edges of the upper steel plate (1) in an extending mode, and the bolt holes connected with the strip-shaped edges of the adjacent upper steel plate (1) are formed in the strip-shaped edges; a cross reinforcing rib (7) is arranged in the upper steel plate (1).
3. The emergency bridge structure for rapid assembling construction according to claim 2, wherein: the bolt hole that is used for being connected with belly steel sheet (3) has on the face of lower steel sheet (2), and four limits of lower steel sheet (2) extend upward and are provided with the bar limit, and the bolt hole of being connected with the bar limit of adjacent lower steel sheet (2) is seted up to the bar edge.
4. The emergency bridge structure for rapid assembling construction according to claim 3, wherein: the abdominal steel plate (3) is of an octagonal structure, and strip-shaped edges are arranged on four opposite edges; the strip-shaped edge of the upper part of the belly steel plate (3) is provided with a bolt hole, and the bolt hole corresponds to the bolt hole on the plate surface of the upper steel plate (1); the strip-shaped edge of the lower part of the belly steel plate (3) is provided with a bolt hole, and the bolt hole corresponds to the bolt hole on the plate surface of the lower steel plate (2); the bolt hole has been seted up on the bar limit of belly steel sheet (3) lateral part, and the bolt hole of lateral part corresponds with the bolt hole of adjacent belly steel sheet (3) lateral part.
5. The emergency bridge structure for rapid assembling construction according to claim 4, wherein: a plurality of parallel end steel plates (4) are arranged at the end part of the overpass structure along the bridge direction, and bolt holes are formed in the upper edge and the lower edge of each end steel plate (4); the bolt holes at the upper part of the end steel plate (4) correspond to the bolt holes at the strip-shaped edge of the upper steel plate (1); the bolt holes at the lower part of the end steel plate (4) correspond to the bolt holes at the strip-shaped edge of the lower steel plate (2); the end steel plate (4) positioned at the side part of the belly steel plate (3) is also provided with bolt holes at the side part, and the bolt holes correspond to the bolt holes at the strip-shaped edge at the side part of the belly steel plate (3).
6. The emergency bridge structure for rapid assembling construction according to claim 4, wherein: at least one transverse partition plate (5) is arranged in the transverse bridge direction in the overpass structure, bolt holes are formed in the lower edge of the transverse partition plate (5), and the bolt holes correspond to bolt holes in strip-shaped edges of the lower steel plates (2) on two sides of the transverse partition plate (5) in the bridge direction; the transverse partition plate (5) located on the side portion of the belly steel plate (3) is also provided with bolt holes in the side portion, and the bolt holes correspond to bolt holes in strip-shaped edges on the side portion of the belly steel plate (3) at two ends of the transverse partition plate (5) in the bridge direction.
7. The emergency bridge structure for rapid assembling construction according to claim 4, 5 or 6, wherein: the bolt holes corresponding to each other are fixedly connected through bolts and nuts.
8. The emergency bridge structure for rapid assembling construction according to claim 7, wherein: the transverse bridge of the overpass structure is at least provided with four structural units.
9. The emergency bridge structure for rapid assembling construction according to claim 7, wherein: between strip limit and the last steel sheet (1) face on belly steel sheet (3) upper portion, between strip limit and the lower steel sheet (2) face of belly steel sheet (3) lower part, between the strip limit of belly steel sheet (3) lateral part and the strip limit of adjacent belly steel sheet (3) lateral part, between the strip limit of going up steel sheet (1) and the strip limit of adjacent last steel sheet (1), between the strip limit of lower steel sheet (2) and the strip limit of adjacent lower steel sheet (2), between the strip limit of cross slab (5) and belly steel sheet (3) lateral part, between the strip limit of cross slab (5) and lower steel sheet (2), between the strip limit of tip steel sheet (4) and last steel sheet (1), between the strip limit of tip steel sheet (4) and belly steel sheet (3) lateral part, all be equipped with piezoelectric sensor (6) between the strip limit of tip steel sheet (4) and lower steel sheet (2).
10. The construction method of the emergency bridge structure for rapid erection construction according to any one of the preceding claims 1 to 9, comprising the steps of:
the method comprises the following steps: the method comprises the following steps of prefabricating an upper steel plate (1), a lower steel plate (2), an abdomen steel plate (3), an end steel plate (4) and a diaphragm plate (5) in corresponding quantities in a factory, and assembling a structural unit with the abdomen steel plate (3) in advance in the factory;
step two: building a temporary support structure or a temporary support beam at the position for installing the bridge, and placing the structural unit with the belly steel plate (3) and the structural unit at corresponding positions on the temporary support or the temporary support beam;
step three: the piezoelectric sensors (6) are arranged between the strip-shaped edge at the upper part of the abdomen steel plate (3) and the plate surface of the upper steel plate (1) and between the strip-shaped edge at the lower part of the abdomen steel plate (3) and the plate surface of the lower steel plate (2), and the abdomen steel plate (3) is fixedly connected with the upper steel plate (1) and the lower steel plate (2) respectively by adopting high-strength bolts;
step four: the piezoelectric sensor (6) is arranged between the strip-shaped edge of the side part of the abdomen steel plate (3) and the strip-shaped edge of the side part of the adjacent abdomen steel plate (3), and the two adjacent abdomen steel plates (3) are fixedly connected by adopting a high-strength bolt;
step five: the piezoelectric sensor (6) is arranged between the strip-shaped edge of the upper steel plate (1) and the strip-shaped edge of the adjacent upper steel plate (1), and the two adjacent upper steel plates (1) are fixedly connected by adopting a high-strength bolt;
step six: the piezoelectric sensor (6) is arranged between the strip-shaped edge of the lower steel plate (2) and the strip-shaped edge of the adjacent lower steel plate (2), and the two adjacent lower steel plates (2) are fixedly connected by adopting a high-strength bolt;
step seven: installing piezoelectric sensors (6) between the transverse partition plate (5) and the strip-shaped edge of the side part of the abdomen steel plate (3) and between the transverse partition plate (5) and the strip-shaped edge of the lower steel plate (2), and fixedly connecting the transverse partition plate (5) with the abdomen steel plate (3) and the lower steel plate (2) respectively by adopting high-strength bolts;
step eight: the piezoelectric sensors (6) are arranged between the end steel plate (4) and the strip-shaped edges of the upper steel plate (1), between the end steel plate (4) and the strip-shaped edges of the side portion of the abdomen steel plate (3) and between the end steel plate (4) and the strip-shaped edges of the lower steel plate (2), and the end steel plate (4) is fixedly connected with the upper steel plate (1), the abdomen steel plate (3) and the lower steel plate (2) respectively through high-strength bolts.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911086123.0A CN110878519A (en) | 2019-11-08 | 2019-11-08 | Emergency bridge structure for rapid assembling construction and construction method thereof |
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| CN201911086123.0A CN110878519A (en) | 2019-11-08 | 2019-11-08 | Emergency bridge structure for rapid assembling construction and construction method thereof |
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| CN110878519A true CN110878519A (en) | 2020-03-13 |
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| CN111455815A (en) * | 2020-04-03 | 2020-07-28 | 中国科学院工程热物理研究所 | Plate-shell type large-span light-weight mechanized bridge structure |
| CN113106841A (en) * | 2021-05-12 | 2021-07-13 | 中铁四局集团第二工程有限公司 | Pin-connected panel landing stage board and landing stage |
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| CN113106841A (en) * | 2021-05-12 | 2021-07-13 | 中铁四局集团第二工程有限公司 | Pin-connected panel landing stage board and landing stage |
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Application publication date: 20200313 |
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