Traffic Load Levels Research Articles

Performance Evaluation of Pebble Concrete for Pavement: A Study on the Sucre Highway Project

Bolivia has abundant pebbles, while the supply of crushed stone is limited and unstable. Thus, the resource utilization of local pebble as a coarse aggregate and the guarantee of concrete durability are the key scientific issues in the Sucre Highway Project. In this paper, a comparative analysis was conducted of the performance of crushed stone concrete and pebble concrete. Additionally, the impact of fly ash on the water permeability resistance of concrete was investigated. The results indicate that the apparent density, bulk density, and void ratio of pebbles are lower than those of crushed stone, and the aggregate gradation of pebbles is dispersed. The type of aggregate is the primary factor influencing the splitting tensile strength of concrete, with the main failure modes of pebble concrete being slurry cracking, aggregate crushing, and interface debonding. While aggregate and fly ash have a minor effect on compressive strength, they significantly impact flexural tensile strength; however, all concretes meet the requirements for extra-heavy, very heavy, and heavy traffic load levels. In terms of impermeability, fly ash effectively mitigates the negative impact of aggregate type on the impermeability of concrete. These findings support the application of pebble concrete in the highway project.

Аналіз технічних вимог і методів випробування матеріалів для дорожньої розмітки, як підґрунтя для нових стандартів

Introduction. Horizontal road markings are a crucial element of road safety, traffic organization and flow management. They also enhance the road's capacity by more than 20 % and reduce the number of road traffic accidents. The modern development of the road sector is characterized by increasing demands on road markings. Today, the choice of materials for road markings is vast and includes: paints, cold and hot-applied plastics, polymer tapes, pre-formed products, retroreflective glass microbeads, and more. Each material has a unique set of properties related to durability, retroreflectivity, application cost, and life cycle. Problem Statement. The expanded range of materials complicates the selection process for road markings. The choice must account for various factors, including the type of marking, road conditions (curves in plan, intersections, roads with high traffic volume, etc.), road surface material, and its roughness. To select the proper materials for road markings, road traffic load level and expected service life must be considered. To make an optimal choice, it is essential to test the quality characteristics of materials through evaluations of their physical-mechanical, technological, and functional properties.

Mechanical properties and microstructure of lime-treated shield tunnel muck improved with carbide slag and soda residue

Shield tunnel muck are usually discarded due to high water content and poor engineering properties, resulting in occupation of land sources and waste of soil sources. Meanwhile, large amounts of industrial waste such as carbide slag (CS) and soda residue (SR) are landfilled with a low reuse rate, which poses a threat to the natural environment. This study aims to improve waste shield tunnel muck using CS and SR and traditional lime, and the improved tunnel muck is expected to be used in subgrade filling to provide a new approach to solve this dilemma. A series of physical, mechanical, subgrade property, and microcosmic tests were conducted on shield tunnel muck improved by CS, SR and lime. The effects of different mixing proportions on the properties of improved tunnel muck were examined. The micro-improvement mechanisms of CS and SR on tunnel muck were explored. Results indicate that the addition of CS or SR can effectively improve the physical and mechanical properties of shield tunnel muck. CS plays a significantly role than SR in improving physical and mechanical properties of tunnel muck. A synergistic enhancement is observed as the combined CS and SR are added, and the optimal mixing proportion of tunnel muck to CS to SR is found to be 100:6:2 with a fixed lime content of 4 %. The alkaline environment created by the synergistic action of CS and SR promotes the dissolution of the active ions in soils, and the generated crystals and gelling products of hydration significant contribute to soil improvement. The tunnel muck improved with appropriate CS or SR content could meet the requirements for light or medium traffic load levels and can be effectively utilized as subgrade filling.

Research on the design method of flexural capacity of RC beams strengthen by ultra-high-performance concrete

Due to the increase in traffic volume, load level, and service life of existing bridges, the bending bearing capacity of reinforced concrete beams (hereinafter referred to as RC beams) has decreased, leading to safety issues. In order to solve the problem of insufficient flexural bearing capacity of RC beams, this article adopts the method of ultra-high performance concrete (UHPC) flexural strengthening RC beams, establishes a finite element model of UHPC-RC reinforcement system, and conducts stress analysis with reinforcement thickness, reinforcement range, reinforcement form, and reinforcement height as parameters to determine the optimal scheme of the reinforcement system. Based on the calculation results, a theoretical formula for the maximum principal stress and maximum deflection of the reinforcement system is proposed. To verify the feasibility of the plan, a reinforcement design was carried out on an existing beam, and it was found that the bending bearing capacity of the RC beam increased by 21%; the high tensile strength of UHPC and the addition of steel fibers have a good limiting effect on cracks; The steel plate of the reinforcement system can be used as a template, reducing construction costs and having good economy.

Оцінка ефективності надання екосистемних послуг зі зниження рівня шуму від дорожнього руху у міських зелених зонах міста (на прикладі міста Києва)

Noise pollution is one of the most important factors in the deterioration of the quality of life in cities. Natural vegetation in urban green spaces (UGS) is an effective instrument for reducing road noise. The primary pollution field and the parameters of the UGS determine their different ability to reduce noise levels to comfortable or at least safe levels. One of the directions in the field of recreational research is to assess the effectiveness with which UGS provide noise reduction. Accordingly, the purpose of this paper is to provide such an assessment on the example of the UGS of Kyiv. In the study, the primary field of noise pollution from roads with different traffic intensities was determined. Modelling has shown that at the border of green spaces, noise values of up to 73 dB are observed in more than half of the city's UGSs. When determining the effectiveness of the noise reduction function, it was found that the majority of UGSs (75%) have a strong potential to reduce noise levels (from 0.7 to 0.8). The modelling results showed the high efficiency of green spaces in Kyiv in performing this function - 90% of the UGSs provide safe conditions for staying. Converting the efficiency values into volumes of ecosystem services (ES) based on the Harrington's desirability function allows us to understand that, given the current levels of traffic load and the parameters of UGS, the maximum volumes of noise reduction ecosystem services provided by vast majority green spaces in Kyiv (2982 objects).

Investigation of “Open” Superstructure Tramway Tracks in Budapest

The most important thing nowadays is to use available resources to develop infrastructure as efficiently as possible. In this regard, evaluating the deterioration of tramway tracks is critical from both a technical and an economic viewpoint. In Hungary, seven types of superstructure systems are currently differentiated in the case of tramway transport, but the geometrical deterioration, lifecycle, and lifecycle cost of the tramway tracks are not accurately known. The current study aimed to evaluate and compare the results of track geometry measurements of two different “open” tramway superstructure systems depending on their traffic load and age. The geometry measurements we re executed by TrackScan 4.01 instrument, developed and maintained by a Hungarian developer company called Metalelektro Méréstechnika Ltd. The evaluation of the measurements showed a clear relationship between the traffic load, age, and track deterioration. Based on the results, it can be generally stated, concerning “open” superstructure systems, that regardless of the “open” superstructure system or the level of traffic load, the average value of alignment is decreasing; however, the average value of the longitudinal level is increasing. Furthermore, the deterioration of an older ballasted track with lower traffic is similar to that of a younger ballasted track that has a higher traffic load. Another significant result was that the deterioration of the track gauge parameter in the case of concrete slab tracks is clearly described as the broadening of the track gauge.

Fatigue load model of orthotropic steel deck for port highway in China

Vehicle load is an important factor for the fatigue damage of the orthotropic steel decks. The traffic vehicles for port highway in China are mainly multi-axle container trucks, which show different characteristics from conventional highways. Based on the multi-period traffic flow data collected by weight-in-motion system of a bridge over the sea in Zhejiang, China, this study has investigated the traffic load characteristics of the port highway bridge. Eight typical vehicles of fatigue load spectrum are classified according to the number of axles and wheelbase. The distribution characteristics of the gross vehicle weight (GVW) and axle weights of typical vehicles are analyzed by lane. Depended on the equivalent fatigue damage principle, the vehicle load spectrum for fatigue evaluation of the port highway bridges is established. The results show that the average proportion of the trucks (weighing greater than 3 tons) in the total traffic flow is 73.2%, and trucks with more than four-axle accounted for 89.0%. Heavy vehicles are mainly concentrated on the outer lanes, and the probability of vehicles driving in the heavy lane increases with the increase of gross vehicle weight. The maximum equivalent gross vehicle weight is 62.5 tons, which appeared in V7 in the exiting island direction. The simplified fatigue vehicle model in the heavy lane for Chinese port highway bridges is proposed, based on the six-axle vehicle which contributed the most fatigue damage. The proposed fatigue load model can better represent the actual traffic load level of port highway bridges in China.

Analysis of aerotechnogenic pollution of the Vinnytsia using phytoindication methods

Today, the anthropogenic impact on the environment is increasing, especially in urbanized areas and territories where active hostilities are taking place. Among a number of urgent environmental problems, it is possible to single out atmospheric air pollution, which occurs as a result of the concentration of road transport and industry in safe areas. The article presents the results of research into the state of atmospheric air pollution in the city of Vinnytsia using phytoindication methods, namely the degree of fluctuating asymmetry of warty birch leaves, and established the dependence of the fluctuating asymmetry on the level of traffic load. The research was conducted at the end of July in 2021 and 2022, after the end of the growing season of warty birch (Betula pendula). In the city of Vinnytsia, six representative experimental sites with different levels of anthropogenic load were identified. Fluctuation asymmetry coefficients of warty birch leaves were calculated for each experimental site and indicators of the asymmetry coefficient were determined. The level of motor vehicle load on experimental sites was established and a correlation-regression model of the dependence of the coefficient of fluctuation asymmetry of the leaves of the warty birch on the level of motor vehicle load was calculated. Conducting biomonitoring of aerotechnogenic pollution of urban ecosystems is necessary for finding ways to optimize its quality.

PROBLEMS OF NATURAL RESOURCE MANAGEMENT AND NATURE PROTECTION IN THE KACHAVA RIVER BASIN

The modern irrational use of water and land resources has led to a violation of the ecological balance, the destruction of natural landscape complexes of river valleys and the territories adjacent to them, and the pollution of water bodies. The basin as a special spatial unit of the biosphere is the most promising for the multi-faceted study of nature, economy, and nature management.
 The purpose of the research is to analyze the structure of land use in the Kachava River basin, the peculiarities of agricultural, industrial, transport and recreational nature use, their impact on the environment, the level of anthropogenic transformation of geosystems, the development of land use optimization measures.
 Thanks to the analysis of the structure of land use in the Kachava River basin, it was found that it deviates significantly from scientifically based norms (anthropogenically transformed territories predominate (72.9%), including arable land (62.2%). Excessively high and ecologically dangerous plowing of land was found: in many cases, the land is plowed up to the river bed, because of this, the eco-corridors in the basin, which are an important link of the eco-network, are cut off. The coefficient of anthropogenic transformation of the geosystems of the Kachava River basin was calculated (according to the method of P. Shishchenko), which is equal to 7.2 and indicates a high level of transformation of the geosystems of the studied territory.
 A positive balance of greenhouse gases has been established in the river basin due to a large share of arable land (1079 tons of CO2 per year), as well as due to the operation of livestock complexes (approximately 300 tons of CO2 per year) due to internal fermentation and processing of manure.
 The impact of industrial facilities on the environment was analyzed and measures to reduce the negative impact were proposed. The level of traffic load in all settlements of the Kachava River basin was studied. The calculation method established an excess of average CO emissions from motor vehicles in the villages of Romanivka, Malyi Khodachkiv, and Kolodiivka.
 The recreational load and recreational capacity of the territory were studied. The ecological condition of the Kachava River, Romanivskyi, Kolodiivskyi and Malochodachkivskyi ponds was analyzed according to physical and hydrobiological (Wudivis method) indicators.
 Measures to optimize land use in the Kachava river basin are proposed: it is proposed to reduce arable land by 97.65 hectares (5.7%) mainly due to afforestation; creation of two new protected objects (a landscape reserve near the village of Malyi Khodachkiv and a botanical reserve in the forest in the village of Romanivka). The submitted proposal will contribute to increasing the share of ecostabilization lands under natural vegetation from 27 to 33% of the total area of the river basin and achieving the formation of a continuous ecocorridor that will connect the objects of the nature reserve fund.
 Key words: nature resource management, optimization, anthropogenic transformation, river basin, ecological situation.

Optimizing protection resource allocation for traffic-driven epidemic spreading.

Optimizing the allocation of protection resources to control the spreading process in networks is a central problem in public health and network security. In this paper, we propose a comprehensive adjustable resource allocation mechanism in which the over allocation of resources can be also numerically reflected and study the effects of this mechanism on traffic-driven epidemic spreading. We observe that an inappropriate resource allocation scheme can induce epidemic spreading, while an optimized heterogeneous resource allocation scheme can significantly suppress the outbreak of the epidemic. The phenomenon can be explained by the role of nodes induced by the heterogeneous network structure and traffic flow distribution. Theoretical analysis also gives an exact solution to the epidemic threshold and reveals the optimal allocation scheme. Compared to the uniform allocation scheme, the increase in traffic flow will aggravate the decline of the epidemic threshold for the heterogeneous resource allocation scheme. This indicates that the uneven resource allocation makes the network performance of suppressing epidemic degrade with the traffic load level. Finally, it is demonstrated that real-world network topology also confirms the results.

BASIN APPROACH TO RESEARCH OF PROBLEMS OF NATURE RESOURCE MANAGEMENT (ON THE EXAMPLE OF THE KACHAVA RIVER)

Due to the analysis of the structure of land use in the Kachava river basin, significant deviations from scientifically sound norms were revealed (anthropogenically transformed territories predominate (72.9%), including arable land (62.2%). Excessively high and ecologically dangerous plowing was revealed: in many cases the lands were plowed up to the riverbed, which can be observed in all villages, due to which the eco-corridors, which are an important part of the ecological network, are broken in the basin.
 The coefficient of anthropogenic transformation of geosystems in the Kachava river basin (according to the method of P.G. Shishchenko) is calculated, which is equal to 7.2 and indicates a high level of transformation of geosystems in the study area.
 A positive balance of greenhouse gases over the river basin has been established due to the large share of arable land (1,079 tons of CO2 per year) and due to the operation of livestock complexes (as a result of internal fermentation and manure treatment) - about 300 tons.
 The impact on the environment of industrial facilities (furniture company (SAMM) in the village of Romanivka, brick factory LLC "Western Trade Organization" in the village of Maly Khodachkiv, Galushchynets quarry, area 45.75 ha, in which limestone is mined, with a capacity of 700 thousand tons per year). The following main environmental problems have been identified: air pollution due to improper disposal of waste in the furniture industry, mining. The level of traffic load in all settlements of the Kachava river basin is studied. The recreational load and recreational capacity of the territory are investigated. Recreation is based on ponds, which are used for fishing, swimming or just relaxing in nature. The ecological condition of the Kachava, Romanivsky, Kolodiyivsky and Malokhodachkivsky ponds was analyzed according to physical and hydrobiological indicators. It was found that they are satisfactory for all ponds, except Malohodachkivsky, which can be used for recreational purposes. Despite the fact that the recreational load does not exceed the recreational capacity of the territory, there are environmental problems such as neglect of the coast, pollution by solid waste. The ecosystem of the Kachava, Romanivsky, Kolodiyivsky and Malokhodachkivsky ponds are analyzed according to physical and hydrobiological indicators.
 Measures to optimize land use in the Kachava River basin are proposed: it is proposed to reduce arable land by an average of 97.65 hectares (5.7%) due to mostly afforestation; creation of а new protected object (landscape reserve near the village of Maly Khodachkiv). The submitted proposal will increase the share of land under natural eco-stabilization lands from 27.1 to 33% of the total area of the river basin and achieve the formation of a continuous eco-corridor, which will connect nature reserves.
 Key words: river, pond, river basin, ecological situation, nature resource management, anthropogenic impact, anthropogenic transformation, optimization.

Longitudinal strain analysis in asphalt pavement under full-scale moving loads

T The roadway networks have been played a vital role in the development of all countries. The assessments of pavement conditions during their service life are therefore decisive to maintain the stable performance of the network. From this point of view, pavement instrumentation allows monitoring pavement conditions continuously and without traffic interruption. The study aims to illustrate the effectiveness of embedded strain gauges and temperature probes to follow the pavement responses with different traffic speeds, traffic loads and temperature conditions. The longitudinal strain signals are then examined with regards to representative parameters of the loading times and strain amplitude. The results show that the traffic load levels and asphalt temperature are directly responsible for the change of strain amplitudes, while those have almost no impact on loading times. Numerical simulations are also introduced to validate the applicability of both layered elastic and viscoelastic models to the strain signals observed in the field.

COMPARATIVE STUDY OF RIGID PAVEMENT PLANNING USING BINA MARGA 2017 AND AASHTO 1993 METHODS

This study was conducted to determine what factors influence the differences in the results of the Bina Marga 2017 method and the AASHTO 1993 method and determine which planning results are more efficient to be applied to Letjen S. Parman Street. The research method used is a comparative method, using the existing data and the latest data from surveys. As a result of analyzing a rigid road plan with a planned age of 40 years, the Bina Marga 2017 method obtained a concrete slab with a thickness of 305 mm, and the AASHTO 1993 method obtained a concrete slab with a thickness of 280 mm. Further differences in results can be seen in the level of traffic load during the service life, the diameter of the dowels, the spacing of the tie bars, and the minimum design height of the subgrade embankment. The differences in the results of these plans are caused by two main factors, namely the factor of using the cumulative traffic growth value (R) in the Bina Marga 2017 method and the direct use of the subgrade CBR value in the AASHTO 1993 method. Based on the data that has been obtained, it is concluded that the 1993 AASHTO method provides more efficient results to be applied with considerations in terms of smaller plate dimensions and fewer connections and reinforcement requirements. Which when calculating the work cost, the AASHTO 1993 methods results give a smaller number of work volumes, so it has the possibility to provide a more economical work cost than the Bina Marga 2017 methods results.

A rendezvous point‐based data gathering in underwater wireless sensor networks for monitoring applications

SummaryIn underwater wireless sensor networks (UWSNs), most of the mobile sink data gathering scheme assumes that sensor nodes are static. Also, very limited set of works aim to eliminate the data redundancy during data gathering. Moreover, the data collection latency, error rate and load have to be considered in addition to the buffer space and energy level of the nodes. Here, a mobile sink data gathering technique is designed where rendezvous points (RPs) and sojourn times are selected. The RPs, where the mobile sinks stop to gather the data, are selected based on the node density, current traffic load and energy level of nodes. The proposed scheme, that is, adaptive distributed mobile sink data gathering (ADMSDG), eliminates data redundancy even by considering mobility of all the nodes including sink node. Here, multihop data gathering is also considered to address the energy hole problem near the sink based on similarity index. To examine the result, proposed scheme and other state‐of‐the‐art schemes are implemented in NS2.30 having the same environment. Obtained results show that when proposed scheme is experimented with respect to number of nodes, the proposed ADMSDG technique achieves 18% high data collection accuracy with 5% reduced data collection delay and 5% less energy consumption. Similarly, when proposed scheme is experimented with respect to transmission range, the proposed ADMSDG technique achieves 18% high data collection accuracy with 12% reduced data collection delay and 8% less energy consumption.

The multi-dimensional nature of Tatarstan’s entry into the trans-continental transport corridor

The aim of the article is to reveal the problems of the Republic of Tatarstan’s entry into the transcontinental transport corridor, taking into account the infrastructural potential of the republic. The following factors provide opportunities for integrating Tatarstan into the global transport network: positioning the republic as a globally competitive and sustainable region with a favourable investment climate, a national tourist rating, a favourable physical, economic and geographical location, a significant share of transport services in the gross domestic product, and the availability of logistics centres and terminal and warehouse complexes. The construction of the transport corridor Europe – Western China – part of Russia – Kazakhstan – China section will allow Tatarstan to be included in transcontinental transportation. The article also touches on environmental issues, recognising the importance of people living in harmony with nature. There are about 30 settlements in the route’s area, some of them will be divided, it is necessary to consider nature conservation areas: rivers, woodlands, natural zoological (hunting) reserves and natural monuments of regional importance, emission load factor of chemical carcinogens in atmosphere and level of traffic load.

Analysis on cracking of structure layer of cement stabilized graded macadam

Because of its strong bearing capacity, good stability and easy control of construction technology, cement stabilized graded macadam was widely used in highway pavement structure. In order to solve its characteristics of easy cracking, relevant researchers have carried out systematic studies on it, but such studies did not involve the large volume and large scope of the structural layer, and only carried out research on the specimen and small scope. Based on engineering project, the influence of dust content and cement content on the cracking was studied by adjusting the parameters and paving the test section during the production process. At the same time, the cracks in the project were counted, and the influences of exposure time, structural level, traffic load and construction level on the cracks in the cement stabilized graded macadam were analyzed. The relationship between crack spacing and exposure time is established, and through comparative analysis, it is found that construction level is the most important factor affecting crack spacing.

PHY/MAC Uplink Performance of LoRa Class A Networks

Recently, low-power wide-area networks (LPWANs) have attracted great interest due to the need of connecting more and more devices to the so-called Internet of Things (IoT). LoRa networks are LPWANs that allow a long-range radio connection of multiple devices operating in nonlicensed bands. In this article, we characterize the performance of LoRa’s uplink communications where both physical layer (PHY) and medium access control (MAC) are taken into account. Motivated by recent works that consider the possibility of decoding multiple frames at the same time, we characterize the performance of the PHY layer through the probability of decoding multiple frames that were transmitted with the same spreading factor. The MAC performance is evaluated by considering that the interarrival time of the frames generated by each LoRa device is exponentially distributed. A LoRaWAN operating scenario is considered, where the transmissions of LoRa Class A devices are influenced by path loss, shadowing, and Rayleigh fading. The numerical results obtained with the modeling methodology are compared with simulation results, and the validation of the proposed model is discussed for different traffic load levels, different PHY-layer conditions, and different capture thresholds. The contribution of this article is primarily focused on studying the average number of decoded LoRa frames for the different capture conditions, being a general model when compared to the works published so far. Moreover, given the different research initiatives to develop innovative multicapture LoRa schemes, we believe that the proposed model is particularly useful to foresee LoRa’s PHY/MAC performance in such innovative scenarios.

An Economic Incentive-Based Risk Transfer Approach for Defending Against DDoS Attacks

Volumetric DDoS attacks are continued to be an immense threat to e-commerce and other online businesses from the last decade as attackers have much resources to amplify scale and frequency day by day. Despite significant efforts by research community and security professionals, we are lacking a robust solution against DDoS attacks. Generally, the attacker's investment in sending large amount of traffic to paralyze a system is negligible as compared to the loss they caused to an organization. Therefore, in this article, a risk transfer approach, a combination of techno-economic aspects is proposed where the risk of being attacked is transferred to some cooperating ISPs in return for economic incentives. In the proposed approach, user's attention, cash, other network and computational resources are contemplated as valuable resources. User must have consent from server in the form of “Sending Rights” which can be obtained by solving cryptographic puzzle (computational work) or by purchasing through micropayment or combination of both according to traffic load level. Our proposed solution is implemented on PN2sim simulator and then verified on SPIN model checker. Implementation results show the supremacy of our proposed approach.

Indexing Mental Workload During Simulated Air Traffic Control Tasks by Means of Dual Frequency Head Maps.

In our digitized society, advanced information and communication technology and highly interactive work environments impose high demands on cognitive capacity. Optimal workload conditions are important for assuring employee's health and safety of other persons. This is particularly relevant in safety-critical occupations, such as air traffic control. For measuring mental workload using the EEG, we have developed the method of Dual Frequency Head Maps (DFHM). The method was tested and validated already under laboratory conditions. However, validation of the method regarding reliability and reproducibility of results under realistic settings and real world scenarios was still required. In our study, we examined 21 air traffic controllers during arrival management tasks. Mental workload variations were achieved by simulation scenarios with different number of aircraft and the occurrence of a priority-flight request as an exceptional event. The workload was assessed using the EEG-based DFHM-workload index and instantaneous self-assessment questionnaire. The DFHM-workload index gave stable results with highly significant correlations between scenarios with similar traffic-load conditions (r between 0.671 and 0.809, p ≤ 0.001). For subjects reporting that they experienced workload variation between the different scenarios, the DFHM-workload index yielded significant differences between traffic-load levels and priority-flight request conditions. For subjects who did not report to experience workload variations between the scenarios, the DFHM-workload index did not yield any significant differences for any of the factors. We currently conclude that the DFHM-workload index reveals potential for applications outside the laboratory and yields stable results without retraining of the classifiers neither regarding new subjects nor new tasks.

Static field test on flexural behavior of reinforced concrete T-beam bridge strengthened with MPC-PSWR

PurposeWith the rapid development of transportation and the continuous increase of traffic volume and load level, some bridges cannot meet the use requirements, and the demand for bridge strengthening is growing. Furthermore, bridges are affected by factors such as structure and external environment. With the increase of service time, the deterioration of bridges is also increasing. In order to avoid the waste caused by demolition and reconstruction, it is necessary to strengthen the bridge accurately and effectively to improve the bearing capacity and durability, eliminate the hidden dangers, and ensure the normal operation of the bridge. It is of great significance to study the strengthening methods. Compared with traditional strengthening methods, the advantages of using new materials and new technology to strengthen bridges are more obvious. This paper introduces a new method for bridge active strengthening, called modified polyurethane cement with prestressed steel wire rope (MPC-PSWR).Design/methodology/approachRelying on the actual bridge strengthening project, five T-beams of the superstructure of the bridge are taken as the research object, and the T-beams before and after strengthening are evaluated, calculated, and analyzed by finite element simulation and field load test. By comparing the numerical simulation and load test data, the strengthening effect of modified polyurethane cement with prestressed steel wire rope on stiffness, strength, and bearing capacity is verified, which proves that the strengthening effect of MPC-PSWR is effective for strengthening.FindingsMPC-PSWR can effectively reduce deflection, cracks, and strain, thereby significantly improving the flexural capacity of existing bridges. Under the design load, the deflection, crack width, and stress of the strengthened beams decrease in varying degrees. The overall performance of the beams strengthened by MPC-PSWR has been improved, and the flexural performance meets the requirements of the code.Originality/valueMPC-PSWR is an innovative bridge-strengthening method. Through the analysis of its MPC-PSWR effect, the MPC-PSWR method with reference to significance for the design and construction of similar bridges is put forward.