CN116005559A - Precast beam construction method and system applied to viaduct - Google Patents
Precast beam construction method and system applied to viaduct Download PDFInfo
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- CN116005559A CN116005559A CN202211570983.3A CN202211570983A CN116005559A CN 116005559 A CN116005559 A CN 116005559A CN 202211570983 A CN202211570983 A CN 202211570983A CN 116005559 A CN116005559 A CN 116005559A
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Abstract
The invention relates to a precast beam construction method and a precast beam construction system applied to a viaduct, wherein the precast beam construction method at least comprises a precast beam preparation step and a precast beam installation step, when the precast beam preparation step and/or the precast beam installation step are executed, the precast beam preparation process and/or the precast beam installation process can be monitored by introducing a safety guarantee step, wherein in the safety guarantee step, acquired bridge original data information related to the preparation process and/or the installation process is analyzed and calculated to obtain bridge processing data information which can be compared with a preset threshold value, so that a comparison structure can be fed back to participators of a designated bridge construction project, and the participators can make a decision of maintaining a bridge construction scheme or adjusting the bridge construction scheme based on the feedback information. The construction system comprises a service platform, a plurality of operation ends and a plurality of acquisition ends, wherein the operation ends and the acquisition ends are in signal connection with the service platform.
Description
Technical Field
The invention relates to the technical field of engineering construction, in particular to a construction method and a construction system of a precast beam applied to a viaduct.
Background
The development of the domestic bridge large-section manufacturing and transporting technology greatly drives the development of the bridge engineering technology, but the safety of the precast beam structure is ensured in the whole manufacturing, transporting, unloading and hoisting processes of the precast beam plate in the large-section bridge construction process. For example, the components need to be placed in balance during transportation, a special fixing frame is adopted to prevent the components from toppling, and measures for preventing the components from generating excessive negative bending moment are also needed to avoid breakage; before hoisting the components, marking vertical central lines at two ends of each beam plate, and marking information such as a longitudinal central line of a beam, a longitudinal and transverse central line of a support, a transverse line of the position of the end of the beam plate, the specific position of each beam plate and the like on a bridge pier table surface; the transportation path is far from the beam slab production factory to the destination, so that the manufacturing, transportation, unloading, hoisting and other processes of the precast beam are all required to be monitored in real time so as to master the construction condition.
CN205158600U discloses a bridge construction period structural safety monitoring system, comprising: the wireless sensors are respectively arranged on the bridge box girder and the periphery of the bridge box girder so as to measure the monitoring data of the bridge box girder; a data processing gateway wirelessly connected with the plurality of wireless sensors; and the monitoring host is in wireless connection with the data processing gateway so as to receive the monitoring data from the plurality of wireless sensors through the data processing gateway. The utility model realizes the remote real-time monitoring of the bridge box girder state, reduces the installation difficulty of monitoring equipment, and can know the concrete position information of the bridge box girder in the transportation process at any time after adopting the GPS module, thereby providing guarantee for the smooth execution of the construction plan.
Then, in the prior art, only individual links in bridge construction projects are independently monitored, and comprehensive monitoring and management of the whole construction process cannot be realized, especially for construction projects with a large engineering construction operation field range and a long construction period (for example, a plurality of rainy periods and winter periods can be experienced), not only is overall coordination of all links in the construction projects required, but also accurate and timely monitoring on construction safety of all links is required, and the construction can be completed safely and smoothly. For the construction of the precast beam, the preparation and the installation of the precast beam are very important, the occurrence time and the cause of the abnormal situation are difficult to accurately judge according to the traditional sensor monitoring method, and the artificial confirmation and the elimination are needed, so that the workload of workers is increased, the timeliness of the detection of the damage is also influenced, and improper or incorrect decision can be made if the initiating factors of the abnormal situation are not detected; if the people spend manpower to check one by one, the optimal time is delayed due to the overlong response time, and the hazard is caused.
Furthermore, there are differences in one aspect due to understanding to those skilled in the art; on the other hand, since the applicant has studied a lot of documents and patents while making the present invention, the text is not limited to details and contents of all but it is by no means the present invention does not have these prior art features, but the present invention has all the prior art features, and the applicant remains in the background art to which the right of the related prior art is added.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a construction method and a construction system of a precast beam applied to a viaduct, which are used for at least solving part or all of the technical problems.
The invention discloses a construction method of a precast beam, which at least comprises the following steps:
the preparation steps of the precast beam are as follows: the method at least comprises the steps of processing and installing precast beam fittings, precast beam reinforcement engineering, conveying and pouring concrete, precast beam template engineering and precast beam maintenance measures;
and (3) installing the precast beam: the ground beam transporting and conveying vehicle is sent to the beam erecting platform and then erected by the bridge erecting machine.
Preferably, when the preparation step of the precast beam and/or the installation step of the precast beam are performed, the preparation process and/or the installation process of the precast beam can be monitored by introducing a safety guarantee step, wherein in the safety guarantee step, the acquired bridge raw data information related to the preparation process and/or the installation process is analyzed and calculated to obtain bridge processing data information which can be compared with a preset threshold value, so that a comparison structure can be fed back to participators of a designated bridge construction project, so that the participators can make decision of maintaining a bridge construction scheme or adjusting the bridge construction scheme based on the feedback information, wherein the feedback information at least further comprises the position of the bridge processing data information in a warning range between the designated threshold value ranges, and the adjustment of the bridge construction scheme comprises adjustment design parameters, change of a bridge construction method or auxiliary bridge construction measures.
According to a preferred embodiment, the concrete can incorporate a composite admixture comprising a water reducing agent, wherein the composite admixture is selected to at least: the water reducing rate is more than or equal to 20 percent, the fineness is less than or equal to 10 percent, the fluidity of cement paste is more than or equal to 240mm, the sodium sulfate content is less than or equal to 5.0 percent, and Cl is contained - The content is less than or equal to 0.10 percent, and the total alkali content is less than or equal to 10.0 percent.
Preferably, the special composite additive has the performances of high water reducing rate, less slump loss, proper amount of air entraining, capability of thinning the concrete pore structure, capability of obviously improving or enhancing the durability of concrete, good adaptability with cement and the like.
According to a preferred embodiment, the precast beam can be subjected to steam curing operation in four stages of static stop, temperature rise, constant temperature and temperature reduction before die stripping, wherein the temperature in the shed is kept to be not lower than 5 ℃ during the static stop, the temperature rise speed after pouring is not higher than 10 ℃/h, the steam temperature at the constant temperature is not higher than 45 ℃, the concrete temperature at the core of the beam body is not higher than 60 ℃, and the temperature reduction speed is not higher than 10 ℃/h.
Preferably, in the precast beam curing measures, in order to accelerate the beam making speed and shorten the construction period, steam curing is adopted and a curing cover is added before the die is removed, and water spraying natural curing is carried out after the die is removed. The protection cover needs to follow up in time when pouring concrete to collect the surface, and the surface collection and the coverage are basically synchronous. And a water spraying facility is arranged in the curing shield, so that water spraying curing is carried out on the concrete in the cooling process. The steam pipeline is respectively arranged at two sides and the inner cavity of the outer mold, and steam cannot be directly blown to the concrete and the mold plate.
According to a preferred embodiment, the acquired bridge raw data information at least comprises image information, the conventional units are selected and marked in the image information based on model features of the conventional units of the bridge construction site, so that the processed image information marked with the unit models can be fed back to the participators of the designated bridge construction project, wherein the processed image information can comprise marks of the conventional unit models and/or marks of the non-conventional unit models in a mode of additionally introducing model features of the non-conventional units when the image information is analyzed and processed.
The invention discloses a construction system which can be used in the bridge construction process of bridge construction projects, comprising the following components: the system comprises a service platform, a plurality of operation ends and a plurality of collection ends, wherein the operation ends are connected with the service platform through signals, the operation ends are used by participants of bridge construction projects, the collection ends are arranged at a plurality of monitoring points in a bridge construction site, and the bridge construction site comprises a preparation site and/or an installation site. The threshold value is set independently for each condition, the threshold value is broken through due to various emergency conditions in the actual use process, and the single threshold value break through is not generally dangerous, but construction interruption is often caused, the investigation reasons are also difficult due to complex environment and construction conditions, the condition that the threshold value is set inaccurately cannot be solved, and the condition that the threshold value is broken through still possibly occurs in the follow-up process. And the dynamic adjustment of the threshold value is complicated and troublesome, and the adjustment for a single threshold value is complicated.
The method is based on the collection and calculation of the association information, can be based on the association calculation of the sudden problem, obtains the threshold value breakthrough condition based on the position of the collector and the construction section, dynamically processes and adjusts the value of the association threshold value, can relatively simply, conveniently and rapidly adjust the value of each association or non-association threshold value on the whole construction line, and realizes the dynamic adjustment of the whole section and the whole project of the construction monitoring. Under the condition of ensuring the safety state, the construction efficiency is improved. The framework is reasonable in classification, the authority is clear in division, and the supervision personnel with different authorities can be endowed with the authority for adjusting and supervising the corresponding construction projects.
Preferably, the operation end and/or the collection end can upload bridge original data information related to the bridge construction project to the service platform in a regular or irregular mode, so that the service platform can process the bridge original data information and feed back the bridge processed data information to the operation end with operation authority, the bridge original data information uploaded by the operation end at least comprises the bridge construction progress, the service platform can input a work decomposition structure of the bridge construction project and complete data synchronous update based on the uploading of the bridge construction progress, wherein the operation end can acquire corresponding operation authority from the service platform based on a grade code of a login account, and the grade code is related to a department and/or a job of a participant using the operation end in the bridge construction project.
According to a preferred embodiment, the operation end can adjust the connection relation between the operation end and the service platform by switching the on-off state, and the service platform can send verification information to be fed back to one or more operation ends in the on-off state within a preset time interval, wherein the deviation amount set by the service platform for identifying the feedback answer is adjusted based on the put-in type of the verification information.
According to a preferred embodiment, the first receiving module of the service platform can receive the bridge original data information acquired by the acquisition end at each monitoring point and send the bridge original data information to the first processing module for analysis processing, wherein the bridge processed data information obtained through analysis processing can be compared with a preset threshold value in the comprehensive analysis module so as to acquire the position of the bridge processed data information exceeding the preset threshold value in the warning range, and the comparison result can be fed back to the designated operation end and/or stored in the storage module.
According to a preferred embodiment, when the bridge processing data information is determined to be in the warning range, the comprehensive analysis module can judge the relevance between the data information in the warning range and the preset event by acquiring the preset event information, wherein the preset event information can be obtained by the second receiving module through simulation prediction by the second processing module after acquiring the basic information from the cloud.
According to a preferred embodiment, the storage module is capable of storing part of the preset event information in advance by using the second receiving module and the second processing module at least based on the work decomposition structure of the bridge construction project, and is capable of scanning the matched preset event information from the storage module when the data information in the warning range appears in the comprehensive analysis module.
According to a preferred embodiment, the bridge original data information acquired by the first receiving module at least comprises image information, the first processing module receiving the image information selects and marks a conventional unit in the image information based on the model characteristics of the conventional unit of the bridge construction site which are recorded in advance, so that the comprehensive analysis module can directly feed back the image information with the marks of the conventional unit model to a designated operation end and/or introduce model characteristics of non-conventional units to generate the image information with the marks of the conventional unit model and/or the marks of the non-conventional unit model and feed back the image information to the designated operation end.
Drawings
FIG. 1 is a flow chart of steps for preparing a precast beam according to a precast beam construction method of a preferred embodiment provided by the present invention;
FIG. 2 is a flow chart of the bridge girder erection machine on-site assembly according to the preferred embodiment of the invention;
FIG. 3 is a flow chart of a bridge girder erection machine via hole according to a preferred embodiment of the present invention;
FIG. 4 is a diagram of a bridge girder Liang Liucheng according to a preferred embodiment of the present invention;
fig. 5 is a simplified schematic diagram of the module connection relationship of a construction system according to a preferred embodiment of the present invention.
List of reference numerals
1: a service platform; 2: an operation end; 3: a collection end; 4: and (3) cloud end. 5: a first receiving module; 6: a first processing module; 7: a second receiving module; 8: a second processing module; 9: a comprehensive analysis module; 10: and a storage module.
Detailed Description
The following detailed description refers to the accompanying drawings.
The invention discloses a construction method of a precast beam, which can be applied to the precast beam construction process of a viaduct and mainly comprises the steps of preparing the precast beam and installing the precast beam.
Preferably, the preparation step of the preform beam may be as shown in fig. 1 in a preferred embodiment.
Preferably, the preparation before the start of the preparation step requires at least the preparation of raw materials meeting the bridge construction requirements, such as cement, special composite additives, water for mixing and curing concrete, etc. Preferably, the cement can be low alkali silicate cement or low alkali ordinary silicate cement (fly ash or slag is adopted as admixture) with stable quality and strength grade of not less than 42.5. The specific surface area of the cement should not exceed 350m 2 Per kg, the alkali content should not exceed 0.60% and the free calcium oxide content should not exceed 1.0%. The content of C3A in the cement clinker is not more than 8 percent and is not more than 5 percent under the strong corrosion environment. Preferably, the special composite additive has the properties of high water reducing rate, less slump loss, proper amount of air entraining, capability of thinning the hole structure of concrete, capability of obviously improving or enhancing the durability of the concrete, good adaptability to the cement and the like, wherein the additive added in the concrete can be used after being inspected to be qualified. Preferably, the water for mixing and curing the concrete should not contain harmful impurities or oils, saccharides and the like which can affect the normal setting and hardening of the cement, and neither sewage, seawater, acidic water with a pH value of less than 5 nor sulfate-containing water should be used.
Further, the composite admixture incorporated in the concrete at least needs to meet the following quality indexes:
| sequence number | Project | Index (I) |
| 1 | Rate of water reduction/% | ≥25.0 |
| 2 | pH value of | 4.5±2.0 |
| 3 | Solids/% | 32.00±1.60 |
| 4 | Cl - Content (mass percent)/% | ≤0.10 |
| 5 | Total alkali content (in terms of Na 2 O+0.658K 2 O meter)/% | ≤3.00 |
| 6 | Sulfate content (in Na 2 SO 4 Meter)/% | ≤2.00 |
| 7 | Formaldehyde content (calculated as fold solids content)/% | ≤0.05 |
| 8 | Ammonia content/% | ≤0.1 |
| 9 | Air content/% | 3.0～6.0 |
| 10 | Density/(g/cm) 3 ) | 1.170±0.030 |
| 11 | Rust corrosion to steel bar | No modification to the steel bar |
| 12 | Fluidity of cement paste/mm | ≥220 |
| 13 | Bleeding Rate ratio/% | ≤60 |
Further, the performance requirements of the concrete after the admixture is doped are as follows:
preferably, the preparation of the precast beam may comprise at least the following: the method comprises the steps of processing and installing precast beam fittings, precast beam reinforcement engineering, conveying and pouring concrete, precast beam maintenance measures in beam making template engineering and the like.
Preferably, in the processing and installation of the precast beam fittings, the processing and installation of Liang Tigang fittings, drain holes, lifting holes, inspection holes and grounding bars are required to be completed.
Preferably, the steel fitting comprises: the embedded steel bars and the embedded parts are bound and installed with the beam body steel bars at corresponding positions so as to ensure the connection of the embedded steel bars and the beam body.
Preferably, the bridge deck drainage holes are formed in the inner bridge deck of the anti-collision wall at intervals along the longitudinal direction, and the periphery of the drainage holes are reinforced by cross ribs or spiral ribs, wherein the intervals can be set to be 4m, and the outer diameter of the PVC drainage pipe is set to be 160nm. When the beam body is poured, a mode of installing a PVC vertical drain pipe after forming holes by a die is adopted, and the die needs to be fixed and cannot deviate. The mould is loosened and pulled out in time before the initial setting of the concrete.
Preferably, the precast beam hanging points are arranged on the top plate at the inner side of the web plate at the beam end, each hanging point is composed of 4 hanging holes, the aperture size, the position and the verticality of the hanging points meet the design requirements, and as the contact surface of the hanging tool and the lower edge of the beam top is zigzag, the zigzag die at the hanging holes is fixed at the corresponding position of the inner die, and the minimum protective layer thickness is ensured. And (3) plugging the hoisting hole by adopting non-shrinkage concrete after the beam body is erected, and performing local waterproof and protective layer construction.
Preferably, according to the operation space requirement during maintenance and construction erection, a notch is arranged on the bottom plate of the beam end according to the design, and an arc chamfer is arranged at the right angle of the notch in order to reduce stress concentration caused by the notch on the bottom plate. The inspection hole die and the end die plate are connected into a whole.
Preferably, two steel bars are pre-buried at two sides of the Liang Tide web plate, grounding steel bars are pre-buried at beam ends, and connecting sleeves are pre-buried at the bridge deck and the beam bottom, so that the pre-buried two steel bars can be configured to be phi 20 as comprehensive grounding measures of the precast beam.
Preferably, in the precast beam reinforcement engineering, the gantry crane is utilized to hoist the bound integral reinforcement cage to a beam making station, and rapid lifting and rapid traveling braking are strictly forbidden in the hoisting and transporting processes so as to avoid the distortion of the reinforcement cage, and meanwhile, the prestressed pipeline is carefully protected from being damaged in the hoisting process. After the integral steel bar framework is hung into the outer die, the steel bars are adjusted to ensure that the steel bars do not deviate from the design position, and then the top plate steel bars and the bottom web plate steel bars are welded or bound to form the integral framework.
Preferably, in the concrete transportation and pouring, the concrete mixing can be performed by using a plurality of forced concrete mixers, and the automatic metering system is controlled by a microcomputer and is provided with equipment for making ice and heating mixing water.
Illustratively, when concrete is stirred, river sand, cement and concrete mineral active admixture are firstly sequentially put down and stirred for 20 seconds, then crushed stone and 70% -80% of water are added and stirred for 30 seconds, then aqueous solution and residual water are added and subtracted, and the total stirring time is not less than 3 minutes. The metering error of cement and water is less than or equal to 1%, and the metering error of river sand and broken stone is less than or equal to 2%.
Preferably, the air content of the precast beam concrete mixture before entering the mould is controlled to be 2-4%. The slump of the concrete mixture is 16-18 cm, the loss of 45min is not more than 10%, the temperature of the template is controlled at 5-35 ℃ when the precast beam concrete is poured, the temperature of the precast beam concrete mixture entering the mould is controlled at 5-30 ℃, and the precast beam concrete has good compactness.
Preferably, the concrete pouring adopts a mode of gradually advancing from one end, the thickness of each layer of concrete is not more than 30cm, two distributing rods are respectively poured from one end to the other end, and the bottom plate pouring is performed from the middle to the two ends.
Preferably, during pouring, a mode of combining side vibration and inserted high-frequency bars for vibration molding is adopted, the inserted high-frequency vibration bars should vibrate vertically, cannot be pulled horizontally, and excessive vibration and leakage vibration are prevented.
Preferably, in consideration of floating of the precast beam inner mold and compaction of the bottom plate concrete, the inner mold back cover is not suitable, but in order to prevent a large amount of extrusion of concrete mixture when the web plate is poured, the sinking of the web plate concrete is also required to be resisted to ensure the compaction of the web plate, so that the grouting plate is added at the corner of the side surface of the inner mold.
Preferably, in the beam-making formwork engineering, the prefabricated beam formwork mainly comprises a bottom die, an inner die, an outer die, an end die, various connecting pieces, fasteners and the like. The form should have sufficient strength, rigidity and stability; the shape, the size and the accurate position of the embedded part of each part of the beam body can be ensured.
Preferably, the pre-buried device should be installed simultaneously in the installation process of the reinforcement cage, mainly comprising: the support plate, the pre-buried steel plate of the beam falling prevention support, the pre-buried nut of the drain pipe, the pre-buried iron seat of the contact net pillar (lower anchor pillar, lower anchor stay wire), the pre-buried expansion joint of the beam end and various pore-forming devices (vent holes of the web plate, the bottom plate, the drain hole of the top plate, the lifting hole of the top plate, the reserved hole of the beam end cable groove and the like).
Preferably, after the beam body concrete strength reaches the design requirement, the required concrete strength on the drawing reaches more than 60% of the design strength, the temperature difference between the beam body concrete core and the surface, between the inside and the outside of the box and between the surface and the environment is no more than 15 ℃, and the beam body edge angle can be guaranteed to be complete. Further, the disassembly of the model is performed according to the reverse direction of the installation of the model, firstly, the end mould is disassembled, secondly, the inner mould is disassembled, and finally, the side mould is loosened.
Preferably, in the precast beam curing measures, in order to accelerate the beam making speed and shorten the construction period, steam curing is adopted and a curing cover is added before the die is removed, and water spraying natural curing is carried out after the die is removed. The protection cover needs to follow up in time when pouring concrete to collect the surface, and the surface collection and the coverage are basically synchronous. And a water spraying facility is arranged in the curing shield, so that water spraying curing is carried out on the concrete in the cooling process. The steam pipeline is respectively arranged at two sides and the inner cavity of the outer mold, and steam cannot be directly blown to the concrete and the mold plate.
Preferably, the steam curing of the beam concrete is divided into four stages of standing, heating, constant temperature and cooling, wherein during the standing, the temperature in the shed is kept to be not lower than 5 ℃, the heating is started after 4 hours of pouring, the heating speed is not higher than 10 ℃/h, the steam temperature is not higher than 45 ℃ during constant temperature, the temperature of the beam core concrete is not higher than 60 ℃, and the cooling speed is not higher than 10 ℃/h. And during steaming and removing the heat preservation facilities, the temperature difference between the beam body concrete core and the surface layer and between the surface layer and the environment is not more than 15 ℃. Steam curing was recorded once an hour. And after the steam curing is finished, immediately entering into water spraying curing.
Preferably, the precast beams must be finished by all ending matches and inspected to be all qualified before loading out of the yard. After the matched engineering of the precast beam is completed, the precast beam is conveyed to a beam lifting platform by a beam lifting machine after meeting the technical conditions of departure, the precast beam is lifted and placed on a beam conveying vehicle by a beam stretching gantry crane, and after the precast beam is reinforced and stabilized, the beam lifting gantry and the precast beam can be separated, and the precast beam is conveyed to a hole site by using a conveying Liang Cheba to carry out frame.
Preferably, the installing step may comprise at least a precast beam hoisting construction and a bridge girder erection construction.
Preferably, in the hoisting construction of the precast beam, the leveling and tamping work of the construction site can be done in advance. In particular to a track crane and beam vehicle walking route, which is required to be leveled before starting hoisting; after the hoisting is finished, the material of the internal leveling field after the hoisting is finished can be moved to the next hoisting site, the thickness of the grading Dan Pingzheng is 50cm, the compaction degree is not lower than 96% once every 25 cm.
Preferably, before construction, the longitudinal center line and the capping beam end line of each beam are released according to the coordinates of the center line, the pier center and the beam supporting center to serve as control lines for support installation and beam hoisting, and before construction, the beam body center line is marked at two ends of each beam to serve as a basis for beam positioning control.
Preferably, before the beam is in place, the temporary jack is used for adjusting the elevation of the bottom of the beam, and then the beam is dropped on the temporary jack, and the counterforce difference of each support is ensured not to exceed 5 percent.
Preferably, the test hoisting can be performed before the formal hoisting.
Preferably, in the construction of the bridge girder erection machine, the operations of site assembly of the bridge girder erection machine, via hole of the bridge girder erection machine and girder erection machine can be performed.
Preferably, in the field assembly process of the bridge girder erection machine, the process can be completed according to the following steps as shown in fig. 2:
(1) Placing a middle support lower beam, a front support lower beam, mounting middle support supporting legs and mounting an anti-support wheel box;
(2) Lifting the front end section girder by a crane and placing the front end section girder on the anti-supporting wheel box and the pillow wood frame;
(3) The front frame is installed by a crane and is connected by a pin shaft, and finally the front frame is penetrated by a cotter pin;
(4) Sequentially installing a second section, a third section, a fourth section and a fifth section of main beams;
(5) The rear upper beam is installed, the rear upper beam, the front supporting leg hydraulic cylinder, the front supporting reverse bracket, the front supporting telescopic pipe and the front supporting lower beam are installed;
(6) A rear supporting leg hydraulic cylinder, a rear supporting reverse bracket, a rear supporting telescopic pipe and a rear supporting lower cross beam are installed;
(7) After the trolley cross beam and the travelling wheel box are assembled on the ground, the trolley cross beam and the travelling wheel box are hung on a main beam by a crane, and then a winch is installed;
(8) The front and rear leg cylinders are lifted up and disassembled at the same time, and a motor speed reducer and an electric appliance part are installed.
Preferably, in the process of passing through the bridge girder erection machine, the method can be completed according to the following steps as shown in fig. 3:
(1) Preparing a via hole of a bridge girder erection machine, and preparing the via hole after the bridge girder erection machine is installed;
(2) The front and rear supporting leg oil cylinders are lifted at the same time, the front trolley is driven to the middle supporting position to lift the middle supporting part, and the front trolley lifts the middle supporting part to move forwards longitudinally to the front supporting position;
(3) Lifting the front support leg oil cylinder to enable the front support beam to be separated from the bent cap for preparing a via hole;
(4) The girder of the bridge girder erection machine is driven by the front anti-supporting wheel set and the wheel set under the rear hydraulic supporting leg beam together, and is driven forward by 20 meters;
(5) And the lifting appliance on the lifting trolley is used for lifting the counterweight beam, so that the steel wire rope has a certain pretightening force, and the main beam moves forwards to complete the bridge crane via hole.
Preferably, in the bridge girder Liang Guocheng, this is accomplished in the following steps as shown in fig. 4:
(1) The front trolley lifts the precast beam to separate the beam from the beam transporting trolley;
(2) The front trolley beam and the rear beam transporting vehicle simultaneously advance, and the front trolley and the rear beam transporting vehicle simultaneously stop when the rear beam transporting vehicle walks to the front beam transporting vehicle;
(3) The rear trolley starts a winch to hoist the rear end of the precast beam, and the front trolley and the rear trolley simultaneously advance and stop advancing when reaching the installation position of the precast beam;
(4) The two trolley windlass descends simultaneously, so that the bottom surface of the precast beam stops descending when being 100mm away from the support, the two trolley traversing power set is started, and the precast beam falls after the precast beam traverses in place.
According to a preferred embodiment, when the precast beam construction method is implemented, a safety guarantee step can be introduced, and the safety guarantee step can be performed synchronously with the precast beam preparation step and/or the precast beam installation step, so that the precast beam construction process can be monitored during preparation and/or installation, and when the construction process is abnormal, the abnormal condition can be timely predicted, found, judged and/or solved, so that the safety of the construction process is ensured.
Preferably, the safety guarantee step can be executed by the construction system provided by the invention in a safety guarantee program mode, and the safety guarantee step can be applied to the construction process of the precast beam of the viaduct and can also be applied to other engineering construction processes.
Preferably, fig. 5 is a construction system according to a preferred embodiment. Preferably, the construction system may comprise a service platform 1 and at least one operator terminal 2, wherein the service platform 1 is capable of communicating with all enabled operator terminals 2 for data interaction.
Preferably, the service platform 1 can analyze and process the bridge original data information acquired from the bridge construction site to obtain bridge processed data information which can be compared with the corresponding threshold value, and the service platform 1 can directly send the bridge processed data information and/or the comparison result to one or more operation ends 2, so that the user can acquire the real-time situation of the bridge construction site through the corresponding operation ends 2.
Preferably, the user can activate and deactivate the corresponding operation terminal 2 by means of login and logout, wherein the operation terminal 2 can acquire the corresponding operation authority from the service platform 1 based on the grade code of the login account. For example, for personnel participating in the security step, the operation end 2 used by the monitoring team personnel responsible for daily monitoring work can acquire the first-level operation authority; the operation end 2 used by the monitoring supervisor for checking analysis data can acquire the secondary operation authority; the operation end 2 used by the technical responsible person who is responsible for auditing the monitoring scheme and making bridge construction countermeasures can acquire three-level operation rights; the operation end 2 used by the project manager in charge of making decisions on the monitoring scheme and bridge construction measures can acquire four-level operation rights, wherein the greater the capability of a user in the bridge construction monitoring process is, the higher the operation right level of the operation end 2 used by the user can be acquired from the service platform 1, and the operation that can be performed by the operation end 2 with the higher operation right level at least comprises all operations that can be performed by the operation end 2 with the lower operation right level compared with the operation end 2 with the higher operation right level.
Preferably, the bridge construction system can execute a safety guarantee program, and also can complete a daily project process management program, namely, personnel participating in the preparation step of the precast beam and the installation step of the precast beam, and the service platform 1 can also endow corresponding operation rights to the operation end 2 used by the personnel so that the personnel can upload the progress and/or refer to the progress based on the functions and responsible projects, wherein the user end can upload the original bridge data information related to the progress of the bridge construction projects so that the service platform 1 can obtain the bridge processing data information after information extraction. In other words, in the course of performing the preparation step of the precast beam and the installation step of the precast beam, the service platform 1 can synchronize the progress to achieve information sharing, wherein the scope of information sharing is limited to only the user side having the corresponding operation right.
Preferably, the service platform 1 is capable of entering a work breakdown structure of the bridge construction project and synchronously updating data based on uploading completion of the bridge construction progress, wherein the work breakdown structure groups project elements guided by deliverable results, and summarizes and defines a more detailed definition of project work represented by each layer down the whole working range of the project, wherein codes for work broken down in the work breakdown structure are identified to obtain a work breakdown structure code.
Preferably, the service platform 1 can set several levels of operation authority levels from the background based on personnel architecture of a monitoring system in bridge construction process, and the service platform 1 can be limited to at least contain one or more specified operation authorities in all the enabled operation terminals 2, even if all the levels of operation authorities can only operate normally, wherein when no corresponding operation terminal 2 is enabled in any specified operation authority level, the service platform 1 can prompt the corresponding operation terminal 2 to be enabled in one or more modes of reminding, entrustment, and the like, so that the normal operation of the intelligent recognition system is ensured. Further, the service platform 1 may send verification information to one or more operation terminals 2 in the enabled state at regular or irregular time, so that a user operating the corresponding operation terminal 2 needs to complete feedback of the verification information within a preset time interval, so as to ensure authenticity and instantaneity of the operation terminal 2 in the enabled state, where the verification information may include text, image, sound, video, biological information, and/or randomly generated dynamic verification codes. Preferably, feedback answers corresponding to different login accounts may be stored in the service platform 1 for the same verification information, and the service platform 1 can complete verification passing only if the feedback answer is matched with the login account, where the matching of the feedback answer and the login account may set a corresponding deviation amount based on the type of the verification information, so as to adapt to different verification modes, for example, a preset verification problem and an answer thereof need perfect matching to complete verification passing, and a preset fingerprint identification, facial identification or voiceprint identification may complete verification passing after reaching a preset similarity.
According to a preferred embodiment, the intelligent recognition system is provided with a plurality of acquisition ends 3 for acquiring the bridge original data information on the bridge construction site, wherein the acquisition ends 3 can be connected to the service platform 1 in a communication manner, so that the service platform 1 can receive and process the bridge original data information in a continuous or discontinuous manner. Preferably, the collection end 3 may be located at a corresponding monitoring point within the preparation site and/or the installation site. Furthermore, especially for the installation site, because the underground pipeline is complex within the range of a common field, the underground pipeline spans high speed and railways, and the monitoring and measurement are carried out on the deformation of the ground surface and the building (structure) and the stress strain of the supporting structure possibly generated by the construction within the range of the important risk source during the bridge construction based on the acquisition end 3, so that the informatization bridge construction is realized, the design parameters are fed back and adjusted in time, and the safety and reliability of the bridge construction are ensured.
Preferably, the acquisition end 3 can establish a horizontal displacement monitoring control network and a vertical displacement monitoring control network, wherein the horizontal displacement monitoring network uses a ground plane control point as a master control point, and forms a plane monitoring network with the monitoring network points, and the form of the plane monitoring network is arranged in an axis shape according to the structure; the vertical displacement monitoring network uses a local elevation control network as a primary control point and forms an earth surface elevation displacement monitoring network with observation points such as earth surface subsidence and the like. Preferably, the main control point is buried firmly and stably, the monitoring point can be buried in the undisturbed soil layer, and the protection device is additionally arranged.
Preferably, the collection end 3 may deploy corresponding monitoring points for one or more measurement items related to bridge construction, where the measurement items related to bridge construction include, but are not limited to: geological and supporting condition monitoring, building settlement and inclination monitoring, underground pipeline deflection monitoring, bridge settlement monitoring, bridge inclination monitoring and the like.
Illustratively, the acquisition end 3 is capable of performing geological and support condition monitoring after each excavation to determine the support structure fracture state; the collection end 3 can be combined with ground surface sedimentation points to arrange monitoring points for building sedimentation and inclination monitoring; the acquisition end 3 can arrange monitoring points for monitoring the displacement of the underground pipeline along the extending direction of the pipeline by using a pipeline with primary environmental risk, a pressure pipeline with 15m ranges on two sides, rain sewage and the like at intervals of 10m, wherein when the surface measuring point is close to an important pipeline measuring point, the two measuring points can be uniformly considered, and the pipeline measuring point is taken as the main point; the acquisition end 3 can arrange bridge pier settlement monitoring points on each bridge pier and each bridge abutment, wherein 2 monitoring points are arranged on each pier and each abutment, and monitoring points are properly added to the pile-group abutment; the acquisition end 3 can set up the slope measurement point to every pier stud in the 1 time degree of depth influence scope of construction excavation.
According to a preferred embodiment, the service platform 1 can be configured with a first receiving module 5 for receiving the bridge original data information of the collecting end 3 and a first processing module 6 in signal connection with the first receiving module 5, so that the bridge original data information acquired by the first receiving module 5 can be sent to the first processing module 6 for analysis and processing.
Preferably, the service platform 1 can obtain the bridge original data information of the collection end 3 of all monitoring points arranged in the bridge construction site in a manner of configuring one or more first receiving modules 5 and one or more corresponding first processing modules 6, and the configuration quantity of the first receiving modules 5 and the first processing modules 6 is determined at least based on the quantity of the monitoring points arranged by the collection end 3 and the operation analysis load.
Preferably, the first processing module 6 which receives the bridge original data information can timely process, eliminate errors in the operation processes of instruments, readings and the like, reject and identify various coarse, accidental and systematic errors, avoid missing detection and erroneous detection, ensure the reliability and the integrity of monitoring data, and finish data arrangement and preliminary shaping analysis work.
Preferably, the first processing module 6 can perform data arrangement on the bridge original data information, for example, display a group of data distribution conditions in the form of frequency distribution according to the size sorting, and perform digital characteristic value calculation of the data and selection and disjunction of outlier data.
Preferably, the first processing module 6 can calculate data which is consistent with the measurement rule and is not actually measured by adopting a function approximation method based on the actually measured data.
Preferably, the first processing module 6 can perform regression analysis on the monitoring result by adopting a statistical analysis method, wherein the first processing module 6 can set multiple groups of thresholds to realize multi-level management. For example, the first processing module 6 may take 70% of the control value as the early warning value, 80% of the control value as the warning value, and 90% of the control value as the warning value, and the warning range between the warning value and the warning value is referred to as the warning range. Preferably, data exceeding the alarm value is also included in the warning range, but adjustment and countermeasures are generally required when the data is between the alarm value and the alarm value, i.e., no value exceeding the alarm value generally occurs.
Preferably, the first processing module 6 may send the data information in the warning range to the comprehensive analysis module 9, so that the comprehensive analysis module 9 may analyze the correlation between the data information in the warning range and the preset event intelligence, wherein the correlation may be a relationship between the result of the simulation prediction and the data information in the warning range in the case of the preset event, and if the result of the data information in the warning range is available in the case of the preset event, the correlation exists between the two; on the other hand, if the data information within the warning range cannot be obtained when the preset event occurs, it means that there is no correlation between the two. Further, if there is no correlation between the two, it may indicate that the data information in the warning range may be caused by other factors, and the reason and the coping method of the other factors may be determined, where the other factors may be, for example, unconventional factors in the bridge construction process.
According to a preferred embodiment, the simulation prediction result of the preset event can be obtained by the second receiving module 7 and the second processing module 8, wherein the second receiving module 7 can obtain various preset event information basic information related to the construction process, especially the preset event information basic information related to the bridge construction process, from the cloud 4 database, and send the preset event information basic information to the second processing module 8, and the second processing module 8 can perform simulation prediction in a form suitable for the current bridge construction scheme based on the preset event information basic information so as to obtain the prediction result. Preferably, the second receiving module 7 is capable of downloading the model information and the corresponding results related to the preset event information in the cloud 4 database together when acquiring the preset event, wherein the model information and the corresponding results related to the preset event information may be uploaded to the cloud 4 database by other intelligent recognition systems through the service platform 1 thereof. Preferably, the cloud 4 database can establish a communication relationship with the service platforms 1 of the plurality of intelligent recognition systems, so that any service platform 1 can upload the prediction simulation of the preset event and the comparison of the result to the cloud 4 database, thereby realizing the information update of the cloud 4 database. The simulation model and the prediction result of the second processing module 8 can be calibrated based on the information update of the cloud 4 database.
Preferably, the preset event information acquired by the second processing module 8 may be directly sent to the comprehensive analysis module 9 to perform relevance comparison with the bridge processing data information sent by the first processing module 6 in the comprehensive analysis module 9, and/or may be sent to the storage module 10 first for temporary, short-term or long-term storage, and the corresponding preset event information is extracted from the storage module 10 after the comprehensive analysis module 9 receives the bridge processing data information sent by the first processing module 6, so as to complete relevance comparison, where the storage period of the storage module 10 may be updated periodically or untimely based on the setting of the authority of the administrator, and the preset event information sent to the storage module 10 may include time information, bridge construction history record, and/or work decomposition structure code.
Preferably, the second receiving module 7 may autonomously acquire updated preset event information of the specified preset event from the cloud 4 database based on the setting of the management right, that is, after the service platform 1 of the other intelligent recognition system completes the uploading work, if the uploaded preset event information at least includes the preset event specified by the service platform 1, the second receiving module 7 may extract information such as time information, bridge construction history record and/or work decomposition structure code from the second processing module 8 after downloading the information as the preset event information that can be stored in the storage module 10.
Preferably, the comparison result between the bridge processing data information and one or more thresholds in the first processing module 6 may also be sent to the storage module 10 for storage, so that the situation that the calculation load is too large in a short time of the comprehensive processing module can be handled, so that the first processing module 6 can continue to complete the analysis processing work of the bridge original data information without being occupied by long-time invalidation in a manner of being transferred to the storage module 10, and all the bridge processing data information can be orderly compared by the comprehensive analysis module 9, thereby reducing the configuration requirement of the comprehensive analysis module 9. Further, the first processing module 6 may obtain the priority order of each monitoring point in the collecting end 3 based on the setting of the authority of the administrator, so that when the first processing module 6 receives multiple pieces of bridge original data information sent by the first receiving module 5 at the same time, it may process the bridge original data information with relatively higher priority order according to the priority order, and when multiple pieces of bridge processed data information are generated at the same time, it may send the bridge processed data information with relatively higher priority order directly to the comprehensive analysis module 9 according to the priority order, and send the bridge processed data information with relatively lower priority order to the storage module 10 for temporary transfer. Preferably, the prioritization of the monitoring points may be based on different monitoring types for classification assignment. Preferably, the administrator authority is available from the operation terminal 2 having the highest level of operation authority or the operation terminal 2 specified by it.
Preferably, the comprehensive analysis module 9 may record a plurality of hazard countermeasures in advance, so that the comprehensive analysis module 9 can provide corresponding countermeasures for the warning caused by the conventional factor and the warning caused by the unconventional factor respectively when judging the association relationship between the data information in the warning range and the corresponding preset event information based on the time information, wherein the warning caused by the data information in the association relationship with the preset event information can be set as the warning caused by the conventional factor; the warning caused by the data information having no association with the preset event information may be set as a warning caused by an unconventional factor. Preferably, the analysis result of the integrated analysis module 9 and the corresponding hazard response scheme may be transmitted to the operation terminal 2 and may be stored in the storage module 10, wherein the information stored in the storage module 10 may be extracted by the operation terminal 2 having the operation authority.
According to a preferred embodiment, in order to confirm the warning caused by the irregular factors, the acquisition end 3 may set fixed or movable image monitoring points for the key areas to acquire image information of the monitoring points with abnormal data, wherein if the number of the key areas is small and the location is fixed, the fixed image monitoring points may be set; on the contrary, if the number of key areas is large and the key areas are easy to change, movable image monitoring points can be set, for example, movable equipment with shooting and communication functions, such as an unmanned plane.
Preferably, the image monitoring point may also belong to the acquisition end 3, that is, the image information acquired by the image monitoring point may be transmitted to the first receiving module 5, so that the first processing module 6 processes the acquired image information, where the processed image information may be sent to the comprehensive analysis module 9 and/or the storage module 10. Preferably, the image monitoring point may start operating only when the analysis by synthesis module 9 determines that an alarm caused by an irregular factor is present and/or is independently driven, so as to avoid occupation of the computational load. Preferably, when the image monitoring point collects the image information, the abnormal monitoring point can synchronously complete the collection work of the bridge original data information, and can bind the bridge original data information collected for the time with the image information so as to facilitate secondary verification, wherein the bridge original data information collected for the time can be endowed with the highest priority sequence, so that the first processing module 6 and the comprehensive analysis module 9 can analyze and process the bridge original data information preferentially.
Preferably, the first processing module 6 may identify the model feature that has been entered in the image information, wherein the model feature entered in the first processing module 6 may be a feature of one or more units selected from conventional units of the bridge construction site, such as a bridge construction machine, a bridge constructor, a bridge construction article, a bridge construction building, etc., based on the setting of the administrator program.
Preferably, the first processing module 6 may define the gray scale or color gradient of the function g (x, y) of the received image information as:
wherein, the liquid crystal display device comprises a liquid crystal display device,
is a gradient vector, which is the direction in which g has the greatest rate of change at any point (x, y) in the image.
Preferably, the gradient amplitude is 0 in the unchanged area of the image pixel, and the gradient value is larger in the area with larger change, wherein the gradient amplitude can be expressed as:
wherein, the liquid crystal display device comprises a liquid crystal display device,
the following formula can be used for calculation:
preferably, the first processing module 6 may calculate the data edge effective rate of the picture information according to the following formula:
where G (-x) represents an image gray function, G (x) represents an image function G (x, y), and ω1 and ω2 represent a maximum value of gray and a minimum value of gray, respectively.
Preferably, when the edge effective rate is greater than the threshold, the first processing module 6 may determine the coordinate point coordinate as the edge of the unit model, where the threshold typically takes a value between 30% -70%.
Preferably, the first processing module 6 can accurately judge the specific type of the entered unit through an artificial intelligence mode such as machine learning according to the edge shape of the unit model. Further, the first processing module 6 may label the identified unit model, and may send the labeled image information to the analysis by synthesis module 9 and/or the storage module 10. Preferably, the comprehensive analysis module 9 may send the image information marked with the unit model to the operation end 2 directly or through secondary processing, so that the user may find the cause of the unconventional factor after excluding the conventional unit, where the comprehensive analysis module 9 may obtain other unit models from the cloud 4 database, which are not recorded in the first processing module 6, from the second receiving module 7 and the second processing module 8, so as to perform secondary processing on the image information.
Preferably, the intelligent bridge hazard identification method in a preferred embodiment of the invention is shown in the figure. Preferably, in the judging feedback stage, a mode of manual judgment and/or system judgment can be adopted to judge the hazard factors and the bridge construction safety, wherein the manual judgment can be based on modes of experience analogy, theoretical analysis, standard requirement and the like, and the system judgment can utilize the comprehensive analysis module 9 of the service platform 1 to comprehensively judge the relevance with the preset event information.
It should be noted that the above-described embodiments are exemplary, and that a person skilled in the art, in light of the present disclosure, may devise various solutions that fall within the scope of the present disclosure and fall within the scope of the present disclosure. It should be understood by those skilled in the art that the present description and drawings are illustrative and not limiting to the claims. The scope of the invention is defined by the claims and their equivalents. The description of the invention encompasses multiple inventive concepts, such as "preferably," "according to a preferred embodiment," or "optionally," all means that the corresponding paragraph discloses a separate concept, and that the applicant reserves the right to filed a divisional application according to each inventive concept. Throughout this document, the word "preferably" is used in a generic sense to mean only one alternative, and not to be construed as necessarily required, so that the applicant reserves the right to forego or delete the relevant preferred feature at any time.
Claims (10)
1. A method of constructing a precast beam, the method comprising at least the steps of:
the preparation steps of the precast beam are as follows: the method at least comprises the steps of processing and installing precast beam fittings, precast beam reinforcement engineering, conveying and pouring concrete, precast beam template engineering and precast beam maintenance measures;
and (3) installing the precast beam: the ground beam transporting and conveying vehicle is adopted to be sent to a beam erecting platform and then is erected by a bridge girder erection machine,
it is characterized in that the method comprises the steps of,
when the preparation step of the precast beam and/or the installation step of the precast beam are executed, the preparation process and/or the installation process of the precast beam can be monitored by introducing a safety guarantee step, wherein in the safety guarantee step, the acquired bridge original data information related to the preparation process and/or the installation process is analyzed and calculated to obtain bridge processing data information which can be compared with a preset threshold value, so that a comparison structure can be fed back to participators of a designated bridge construction project, the participators can make decision of maintaining a bridge construction scheme or adjusting the bridge construction scheme based on the feedback information, the fed back information at least further comprises the position of the bridge processing data information in a warning range between designated threshold values, and the adjustment of the bridge construction scheme comprises adjustment design parameters, change of a bridge construction method or auxiliary bridge construction measures.
2. The method of claim 1, wherein the concrete can incorporate a composite admixture comprising a water reducing agent, wherein the composite admixture is selected to at least: the water reducing rate is more than or equal to 20 percent, the fineness is less than or equal to 10 percent, the fluidity of cement paste is more than or equal to 240mm, the sodium sulfate content is less than or equal to 5.0 percent, and Cl is contained - The content is less than or equal to 0.10 percent, and the total alkali content is less than or equal to 10.0 percent.
3. The construction method according to claim 1 or 2, wherein the precast beam can undergo four stages of steam curing operation of static stop, temperature rise, constant temperature and temperature reduction before die stripping, wherein the temperature in the shed is kept to be not lower than 5 ℃ during the static stop, the temperature rise speed after pouring is not higher than 10 ℃/h, the steam temperature at constant temperature is not higher than 45 ℃, the concrete temperature of the beam body core is not higher than 60 ℃, and the temperature reduction speed is not higher than 10 ℃/h.
4. A construction method according to any one of claims 1-3, characterized in that the collected bridge raw data information contains at least image information, the regular units are selected and marked in the image information based on model features of regular units of the construction site, so that the processed image information marked with unit models can be fed back to the participants of the designated construction project, wherein, when the image information is analyzed and processed, the processed image information can contain marks of regular unit models and/or marks of irregular unit models in such a way that model features of irregular units are additionally introduced.
5. A construction system that can be used in a construction process of a construction project, comprising:
the system comprises a service platform (1), a plurality of operation ends (2) and a plurality of acquisition ends (3) which are connected with the service platform (1) in a signal manner,
wherein the operation end (2) is used by participants of construction projects, the acquisition end (3) is arranged at a plurality of monitoring points in a construction site, the construction site comprises a preparation site and/or an installation site,
it is characterized in that the method comprises the steps of,
the operation end (2) and/or the collection end (3) can upload bridge original data information related to a construction project to the service platform (1) in a regular or irregular mode, so that the service platform (1) can process the bridge original data information and feed back the bridge processed data information to the operation end (2) with operation authority, the bridge original data information uploaded by the operation end (2) at least comprises construction progress, the service platform (1) can input a work decomposition structure of the construction project and complete data synchronous update based on the uploading of the construction progress,
the operation end (2) can acquire corresponding operation authorities from the service platform (1) based on the grade codes of the login account numbers, and the grade codes are related to departments and/or roles of the participators using the operation end (2) in construction projects.
6. The construction system according to claim 5, wherein the operation terminal (2) is capable of adjusting the connection relation between the operation terminal (2) and the service platform (1) by switching the on-off state, and the service platform (1) is capable of transmitting verification information to be fed back to one or more operation terminals (2) in the on-state within a preset time interval, wherein the deviation amount set by the service platform (1) for identifying the answer of the feedback is adjusted based on the delivery type of the verification information.
7. The construction system according to claim 5 or 6, wherein the first receiving module (5) of the service platform (1) is capable of receiving the bridge original data information acquired by the acquisition end (3) at each monitoring point and sending the bridge original data information to the first processing module (6) for analysis processing, wherein the bridge processed data information obtained by the analysis processing is capable of being compared with a preset threshold value in the comprehensive analysis module (9) to acquire the position of the bridge processed data information exceeding the preset threshold value in the warning range, and the comparison result is capable of being fed back to the designated operation end (2) and/or stored in the storage module (10).
8. The construction system according to any one of claims 5 to 7, wherein the comprehensive analysis module (9) can determine the correlation between the data information in the warning range and the preset event by acquiring the preset event information when determining that the bridge processing data information is in the warning range, wherein the preset event information can be obtained by the second receiving module (7) through simulation prediction by the second processing module (8) after acquiring the basic information from the cloud (4).
9. The construction system according to any one of claims 5 to 8, wherein the storage module (10) is capable of storing part of preset event information in advance using the second receiving module (7) and the second processing module (8) based at least on the work breakdown structure of the construction project, and is capable of scanning the preset event information that can be matched from the storage module (10) when data information within a warning range appears in the integrated analysis module (9).
10. Construction system according to any one of claims 5-9, wherein the bridge raw data information obtained by the first receiving module (5) at least comprises image information, and the first processing module (6) receiving the image information selects and marks a regular unit in the image information based on the model characteristics of the regular unit of the pre-entered construction site, so that the comprehensive analysis module (9) can directly feed back the image information with the mark of the regular unit model to the designated operation end (2) and/or introduce the model characteristics of the irregular unit to generate the image information with the mark of the regular unit model and/or the mark of the irregular unit model and feed back to the designated operation end (2).
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| CN202211570983.3A CN116005559A (en) | 2022-12-07 | 2022-12-07 | Precast beam construction method and system applied to viaduct |
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| CN116576793A (en) * | 2023-07-14 | 2023-08-11 | 北京住总基础设施建设集团有限责任公司 | Control system and method for box girder formwork support construction |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN116576793A (en) * | 2023-07-14 | 2023-08-11 | 北京住总基础设施建设集团有限责任公司 | Control system and method for box girder formwork support construction |
| CN116576793B (en) * | 2023-07-14 | 2023-10-03 | 北京住总基础设施建设集团有限责任公司 | Control system and method for box girder formwork support construction |
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