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Relevant bibliographies by topics / Tower crane

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Academic literature on the topic 'Tower crane'

Author: Grafiati

Published: 4 June 2021

Last updated: 20 May 2022

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Journal articles on the topic "Tower crane"

1

Zhu, Chun Xia, Sheng Qing Gu, and Jiu Fu Jin. "Research on Design of Inner-Climbing Tower Crane Supporting System." Applied Mechanics and Materials 328 (June 2013): 338–42. http://dx.doi.org/10.4028/www.scientific.net/amm.328.338.

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Safety is essential for tower cranes in construction engineering, as the inner-climbing tower crane is widely used in the construction of high-rise structures, design safety, reliability and support system which can be turnover is an important prerequisite for protecting the safety of construction. By understanding the interrelationships between construction environment of Henglong Plaza Twin Towers in Shenyang city and ZSL2700 tower, the article will analyse the support system for the project. It mainly uses finite element analysis software ANSYS which can create mechanical status of modeling to analyzing the supporting structure. It can guarantee the structures rationality and the security reliability. Project Summary Shenyang municipal government square tower engineering which building height is 350.6m has the underground layer 4 and the ground 70 layer. The office building has used the frame core tube structure system. The outside frame is composed by the square shape section coagulation earth pyramid and the peripheral steel girder. The rectangular core tube was the reinforced concrete, while in the core tube outer wall has established some steel pole. This project adopt two boom tower cranes from Zhongsheng construct machine company (Nanjing).The first number tower crane is ZSL750, which maximum torque is 750tm; the second number tower cranes is ZSL2700. This paper takes the ZSL2700 tower crane as an object, studying this machines stressful condition of attachment system. The ZSL2700 tower cranes most high-torque is 2600tm, pitching arm angle ranges 85-65 .The maximum lifting load is 100t. The biggest hoisting up scope is 55m, which lifting load is 37.6t.When the crane surpasses the permission lifting load or the hoisting up moment of force, PLC can break the power implementation protection automatically. The tower machine need carry on 19 climbs in the construction process. Fig. 1 Two tower crane installation location diagram

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Mahdiyah, Nachda Nur, Dyah Lidyaningtias, and Susapto Susapto. "PERENCANAA PENGGUNAAN TOWER CRANE UNTUK PEKERJAAN STRUKTUR PROYEK APARTEMEN BESS MANSION SURABAYA." Jurnal JOS-MRK 2, no. 3 (September 20, 2021): 202–9. http://dx.doi.org/10.55404/jos-mrk.2021.02.03.202-209.

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The BeSS Mansion Sarabaya apartment building is a construction project with a total building area of 86,000 m2. This apartment complex, which is located in the centre of Surabaya, includes 44 stories of Tower Premiere, 42 stories of Tower Suite, and 9 stories of Tower Podium parking area. Tower Cranes are used to transport or move materials in the construction of high-rise buildings. The objective of this thesis analysis is to figure out how many Tower Cranes are needed, as well as scheduling, operational costs, site layout, traffic management, and the HIRARC matrix. The data used were shop drawings, Tower crane specifications, and Tower Crane rental prices. According to the results of this calculating plan, two units of Tower Cranes are required to complete structural work, with a total work time of 5,592 hours. Tower Crane type MCT 205 requires a rental cost of Rp. 844,266,37 per hour, whereas Tower Crane type Tengda TC 6018 requires a rental charge of Rp. 701.184.89 per hour. On the site layout study, there are four options, and option 2 has been chosen because it is close to 0 or the minimum value, and traffic management planning uses an one gate system.

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Liu, Yao, and Bao Jiang Chen. "Research on the Current Situation of Safety Monitoring of Tower Cranes and the Existed Problems." Advanced Materials Research 875-877 (February 2014): 2264–68. http://dx.doi.org/10.4028/www.scientific.net/amr.875-877.2264.

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At the beginning of 21st century, with the growth of architecture and construction industry, many countries are having a great boom in crane industry. Still, there are some crane accidents, which usually cause startling devastation. As the rapid development of modern science and technology, especially dramatic improvement in internet, domestic and foreign scientists have taken advantages of advanced technology to exploit the safety monitoring system of tower cranes. Although the tower and tower arm are crucial targets of the safety monitoring system of tower cranes, the fact is that few scientists concentrating on the internal stress and strain in tower crane when it has been loaded. Hence, it is necessary to introduce some latest developments of the safety monitoring system of tower cranes in this text, presenting some existed problems and an advanced safety monitoring system basing on infrasonic emission technology.

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Sharmanov, V. V., A. E. Mamaev, T. L. Simankina, N. V. Braila, M. A. Romanovich, and I. G. Osipenkova. "Express monitoring of technical condition of tower crane on the basis of integral-differential approach." Вестник гражданских инженеров 17, no. 2 (2020): 123–31. http://dx.doi.org/10.23968/1999-5571-2020-17-2-123-131.

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The article presents a method for calculating the technical condition of the tower crane on the basis of integrated monitoring of the mechanisms of the lifting structure using a digital model.The use of information technologies allows to take a new look at the issues of ensuring the safe operation of lifting mechanisms. Due to the application of these technologies, a qualitatively new method of calculating the technical condition of tower cranes on the basis of an integral-differential approach, which takes into account the score of defects, according to the regulatory documentation, is proposed. The concept of the technical condition index of the tower crane (TCItc), as an integral indicator reflecting the general condition of the nodes and mechanisms of the crane, is introduced. The use of information technologies to calculate the technical condition index of tower cranes makes it possible to integrate the geometric parameters of the tower crane and a mathematical algorithm for their evaluation, which results in a quantitative assessment of defects formed during the operation of tower cranes.

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Huang, Guo Jian, Cheng Zhong He, and Xin Hua Wang. "A Modal Analysis of Giant Shipbuilding Tower Crane." Applied Mechanics and Materials 239-240 (December 2012): 473–77. http://dx.doi.org/10.4028/www.scientific.net/amm.239-240.473.

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Old giant cranes in corrosive environment are in serious hidden danger of structural instability and failure, the modal analysis is an important part of dynamics analysis in the Crane Safety Evaluation to guarantee the safety of cranes. A Modal Analysis of a 28-year old 100t giant shipbuilding tower crane was done using ANSYS. Comparing with the vibration frequencies and modal shapes, Modal analysis shows that the Natural Frequency of the crane reduces from 1.0024Hz to 1.0003Hz, beside all the Modal vibration frequencies (first 10 Order) of the crane are lower than the designed value, means the strength of the tower crane has decreased; the Modal Vibration Frequencies (first 10 Order) of the tower crane are between 1 Hz and 2 Hz. The Mmodal analysis provided theoretical basis for safe use, design and transformation of this crane.

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Yang, Xiang, Kun Zhou, and Wei Wang. "Design of a Monitoring System of Tower Crane Based on uC/OS-II." Applied Mechanics and Materials 427-429 (September 2013): 586–90. http://dx.doi.org/10.4028/www.scientific.net/amm.427-429.586.

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At present, there are some shortcomings in tower crane protect device. In order to reduce the difficulty of the operation, and ensure the safety of the crane, we design this monitoring system. For the purpose of improve tower crane self-control ability and self-diagnosis ability .we propose a design of tower crane monitoring system , a combination of sensor technology and wireless technology. We choose the stm32 as the master chip, and choose uC/OS-II as the operating system. All kinds of tasks could coordinate with each other, and orderly operation. UCGUI is used to realize human-machine interface. It can display real-time operating parameters of the tower crane. The central monitoring room can monitor multiple tower cranes through wireless communication technology.

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Persulessy, Gerwyn, and Basuki Anondho. "PENENTUAN LOKASI TOWER CRANE PADA PROYEK KONSTRUKSI BERBASIS SIMULASI." JMTS: Jurnal Mitra Teknik Sipil 3, no. 4 (November 1, 2020): 1305. http://dx.doi.org/10.24912/jmts.v3i4.8694.

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Development of high-level building construction projects that require complex equipment that can be used in high-level construction, equipment used to help complete construction projects called heavy equipment. One of the heavy equipment used in high-rise buildings is a tower crane. The use and layout of tower cranes can speed up the schedule and save on project costs. Therefore many methods have been developed to determine the tower crane layout. This study will discuss determining the location of tower cranes by discussing simulations. The location will be determined based on the site map data which is processed in the form of a geometric arrangement and tower crane data specifications. Location determination is done by comparing the total travel time of several simulated locations according to several different speed criteria in a construction project. Speed criteria are divided into four times the jib speed and trolley speed. Location of the location with the total travel time will be taken as the final result. Different speed criteria will make the total travel time change. ABSTRAKPerkembangan proyek pembangunan gedung bertingkat tinggi yang semakin kompleks menyebabkan diperlukannya peralatan yang dapat mempermudah pembangunan gedung bertingkat, peralatan yang digunakan untuk membantu menyelesaikan tugas konstruksi disebut alat berat. Salah satu peralatan berat yang digunakan pada gedung bertingkat tinggi adalah tower crane. Penggunaan dan tata letak tower crane yang baik dapat mempercepat jadwal dan menghemat biaya proyek. Oleh karena itu banyak dikembangkan metode-metode untuk menentukan tata letak tower crane. Penelitian ini akan membahas penetapan letak lokasi tower crane dengan pendekatan simulasi. Letak lokasi akan ditetapkan berdasarkan data site map yang diolah dalam bentuk geometric layout dan data spesifikasi tower crane. Penetapan lokasi dilakukan dengan cara membandingkan total travel time dari beberapa lokasi yang disimulasi sesuai dengan beberapa kriteria kecepatan yang berbeda-beda pada suatu proyek konstruksi. Kriteria kecepatan terbagi menjadi empat berdasarkan besarnya kecepatan jib dan kecepatan trolley. Letak lokasi dengan total travel time terkecil akan diambil sebagai hasil akhir. Kriteria-kriteria kecepatan yang berbeda disimulasi akan membuat total travel time berubah.

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Chen, Wei, Xianrong Qin, Zhigang Yang, and Pengming Zhan. "Wind-induced tower crane vibration and safety evaluation." Journal of Low Frequency Noise, Vibration and Active Control 39, no. 2 (May 20, 2019): 297–312. http://dx.doi.org/10.1177/1461348419847306.

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The maximum wind load direction of tower crane is considered to be perpendicular to its jib. The interference effects of its different segments and across-wind loads are ignored in traditional crane safety evaluation. This study proposes a general scheme for the safety evaluation of tower cranes under fluctuating wind loads. The wind coefficients of a full-scale model of a tower crane were calculated by computational fluid dynamics, and then the time history of wind loads, simulated through the autoregressive method, were applied to the finite element model of a tower crane. The results reveal that the maximum along-wind load direction deflected 30°–60°, and the mean ratio of the absolute value of the across-wind coefficient to the along-wind coefficient of the tower crane was 8.56%, which indicated that the across-wind loads should be taken into account in wind-resistant design. Comparing the wind-induced responses of four typical wind directions, the maximum displacement, the bending stress and the axial stress of the tower crane occurred in the positive direction. Furthermore, the maximum acceleration of the cat-head was 0.028 m/s2, which met the comfort requirements of the operator. Although the tower crane met the strength and static stiffness requirements of design rules, the maximum bending stress at the junctions between the jib and the slewing platform, the counterweight and the counter-jib, exceeded the allowable stress, and the first modal of the tower crane was excited. These results warrant considering the effect of fluctuating wind loads in the safety evaluation of a tower crane.

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Li, Bin, Bing Cai, Hong Da Liu, Fu Mian Wang, and Jin Sheng Zhang. "Research on Anti-Backward-Tipping Device of Luffing Jib Tower Crane." Applied Mechanics and Materials 229-231 (November 2012): 521–25. http://dx.doi.org/10.4028/www.scientific.net/amm.229-231.521.

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When the crane jib is in the maximum elevation angle，luffing jib tower cranes can happen to produce accidents of crane jib backward- tipping. The anti-backward-tipping device is the necessary safety device luffing jib tower crane. Based on the study of several anti-backward-tipping devices, this paper analyzes the causes and forced state of crane jib backward- tipping and proposes several factors to be put into consideration in designing anti-backward-tipping device. It proposes a design method and calculation method of dual-spring anti-backward-tipping device, which has been applied and verified in product design.

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Gu, Yong Qiang, Wen Feng Wang, and Shao Dong Guo. "Analysis on Tower Crane under Wind Load by ANSYS." Applied Mechanics and Materials 226-228 (November 2012): 35–38. http://dx.doi.org/10.4028/www.scientific.net/amm.226-228.35.

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With high-rise construction increasing in city, it demands more and higher-performance tower cranes. Damages by wind to the tall and towering structures are usually very serious, but these dangers are often hidden.The paper uses the finite element software ANSYS to set up the overall modeling of the TC6010 tower crane which is produced by a company, and carry on the FEM analysis effected by wind based on it . The paper obtains the data of the displacement response of the complete machine after exerting the wind wave, and has the preliminary analysis to the result. The results show that the tower crane is a low-frequency vibrating system and easy to cause the structure resonance, the crane tower may damage in the boom firstly under the action of wind load.

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Dissertations / Theses on the topic "Tower crane"

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Golafshani, Ali Reza. "Modeling and optimal control of tower crane motions." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1999. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape7/PQDD_0003/NQ44760.pdf.

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Manrique, A., A. Manrique, J. Saman, S. Rodriguez, and K. Melendez. "Productivity improvement of tower crane in tall buildings." Institute of Physics Publishing, 2020. http://hdl.handle.net/10757/651736.

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The tower crane is an electromechanical equipment that is used for the vertical transport of materials in a construction project and together with the two riggers form the work team to carry out this task. One of the main problems in the construction of multifamily buildings corresponds to the use of the tower crane because vertical transport causes non-contributory times, which is, dead times and waits above expectations. This research analyzes the current vertical transport process and proposes its optimization through some management tools with the aim of improving the productivity of the use of the tower crane by reducing non-contributory times. To this end, the productivity of the work team is recorded in several projects with similar characteristics, then the main problems are selected to analyze them and finally the process is optimized. The results determined that non-contributory times can be reduced by 10% if there is an orderly and continuous process.

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Omar, Hanafy M. "Control of Gantry and Tower Cranes." Diss., Virginia Tech, 2003. http://hdl.handle.net/10919/26044.

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The main objective of this work is to design robust, fast, and practical controllers for gantry and tower cranes. The controllers are designed to transfer the load from point to point as fast as possible and, at the same time, the load swing is kept small during the transfer process and completely vanishes at the load destination. Moreover, variations of the system parameters, such as the cable length and the load weight, are also included. Practical considerations, such as the control action power, and the maximum acceleration and velocity, are taken into account. In addition, friction effects are included in the design using a friction-compensation technique. The designed controllers are based on two approaches. In the first approach, a gain-scheduling feedback controller is designed to move the load from point to point within one oscillation cycle without inducing large swings. The settling time of the system is taken to be equal to the period of oscillation of the load. This criterion enables calculation of the controller feedback gains for varying load weight and cable length. The position references for this controller are step functions. Moreover, the position and swing controllers are treated in a unified way. In the second approach, the transfer process and the swing control are separated in the controller design. This approach requires designing two controllers independently: an anti-swing controller and a tracking controller. The objective of the anti-swing controller is to reduce the load swing. The tracking controller is responsible for making the trolley follow a reference position trajectory. We use a PD-controller for tracking, while the anti-swing controller is designed using three different methods: (a) a classical PD controller, (b) two controllers based on a delayed-feedback technique, and (c) a fuzzy logic controller that maps the delayed-feedback controller performance. To validate the designed controllers, an experimental setup was built. Although the designed controllers work perfectly in the computer simulations, the experimental results are unacceptable due to the high friction in the system. This friction deteriorates the system response by introducing time delay, high steady-state error in the trolley and tower positions, and high residual load swings. To overcome friction in the tower-crane model, we estimate the friction, then we apply an opposite control action to cancel it. To estimate the friction force, we assume a mathematical model and estimate the model coefficients using an off-line identification technique using the method of least squares. With friction compensation, the experimental results are in good agreement with the computer simulations. The gain-scheduling controllers transfer the load smoothly without inducing an overshoot in the trolley position. Moreover, the load can be transferred in a time near to the optimal time with small swing angles during the transfer process. With full-state feedback, the crane can reach any position in the working environment without exceeding the system power capability by controlling the forward gain in the feedback loop. For large distances, we have to decrease this gain, which in turn slows the transfer process. Therefore, this approach is more suitable for short distances. The tracking-anti-swing control approach is usually associated with overshoots in the translational and rotational motions. These overshoots increase with an increase in the maximum acceleration of the trajectories . The transfer time is longer than that obtained with the first approach. However, the crane can follow any trajectory, which makes the controller cope with obstacles in the working environment. Also, we do not need to recalculate the feedback gains for each transfer distance as in the gain-scheduling feedback controller.
Ph. D.

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Zavichi, Tork Amir. "A real-time crane service scheduling decision support system (CSS-DSS) for construction tower cranes." Doctoral diss., University of Central Florida, 2013. http://digital.library.ucf.edu/cdm/ref/collection/ETD/id/6041.

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The success of construction projects depends on proper use of construction equipment and machinery to a great extent. Thus, appropriate planning and control of the activities that rely on construction equipment could have significant effects on improving the efficiency of project operations. Cranes are the largest and most conspicuous construction equipment, widely used in typical construction sites. They play a major role in relocation of materials in horizontal and vertical directions on construction sites. Given the nature of activities relying on construction cranes in various stages of a project, cranes normally have control over the critical path of the project with the potential to create schedule bottlenecks and delaying the completion of the project. This dissertation intends to improve crane operations efficiency by developing a new framework for optimizing crane service sequence schedule. The crane service sequence problem is mathematically formulated as an NP-complete optimization problem based on the well-known Travel Salesman Problem (TSP) and is solved using different optimization techniques depending on the problem's size and complexity. The proposed framework sets the basis for developing near-real time decision support tools for on-site optimization of crane operations sequence. To underline the value of the proposed crane sequence optimization methods, these methods are employed to solve several numerical examples. Results show that the proposed method can create a travel time saving of 28% on average in comparison with conventional scheduling methods such as First in First out (FIFO), Shortest Job First (SJF), and Earliest Deadline First (EDF).
Ph.D.
Doctorate
Civil, Environmental, and Construction Engineering
Engineering and Computer Science
Civil Engineering

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Al-Mousa, Amjed A. "Control of Rotary Cranes Using Fuzzy Logic and Time-Delayed Position Feedback Control." Thesis, Virginia Tech, 2000. http://hdl.handle.net/10919/36024.

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Rotary Cranes (Tower Cranes) are common industrial structures that are used in building construction, factories, and harbors. These cranes are usually operated manually. With the size of these cranes becoming larger and the motion expected to be faster, the process of controlling them became dicult without using automatic control methods. In general, the movement of cranes has no prescribed path. Cranes have to be run under dierent operating conditions, which makes closed-loop control preferable. In this work, two types of controllers are studied: fuzzy logic and time-delayed position feedback controllers. The fuzzy logic controller is introduced first with the idea of split-horizon; that is, to use some fuzzy engines for tracking position and others for damping load oscillations. Then the time-delayed position feedback method is applied. Finally, an attempt to combine these two controllers into a hybrid controller is introduced. Computer simulations are used to verify the performance of these controllers. An experimental setup was built on which the time-delayed position feedback controller was tested. The results showed good performance.
Master of Science

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Emsley, Margaret W. "A model to optimize single tower crane location within a construction site." Thesis, Loughborough University, 2001. https://dspace.lboro.ac.uk/2134/7560.

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This thesis describes the development of a descriptive mathematical model to determine the optimum position of a single tower crane. The objective function of the model is that of minimization of total travel time necessary to complete all movements from the installation of the crane until it is dismantled and removed. Previous models which have been developed to determine optimum crane selection and location are categorized as simulation models, expert systems and mathematical models and three particular models are credited as making contributions to the problem of tower crane location. However, the model developed here overcomes many of the deficiencies exhibited by these models. In developing a model to determine optimum tower crane location, the characteristics of the construction site in which it will be placed and those of the crane itself must be considered separately. The most challenging and significant problem is in determining the total number of movements which will occur during the time when a particular crane is installed on a particular site. The method adopted was the application of a linear programming technique, the Simplex Method. Once the (computer) model had been developed a wide range of simulations were carried out to see if any general truth concerning the optimum layout could be evinced. The result of these simulations demonstrated that there are potentially significant savings to be made, in terms of the time to complete all movements, by locating the crane in the optimum position rather than in one where the maximum time to complete all movements occurs. Typical savings were in the order of 30% but situations where the time savings were in excess of 100% and even 200% were not uncommon. The layout configuration was shown to have very little influence on the magnitude of the minimum time to complete all movements. And these optimum positions were found to consistently occur at the site perimeter, very often at the corners, whilst the positions associated with the maximum times were consistently located internally. However, when the cost implications of locating the crane at the perimeter, which necessitates the use of a crane with a longer jib than would be necessary were the crane located internally, were taken into account, it was shown that, in terms of cost benefits, the cheaper option is to use the crane with a short a jib as is viable for the purposes of reaching the points the crane is required to service, and locate the crane internally. Finally, neural networks were shown to have potential as a tool to predict optimum crane location, but further work is needed to produce a working model.

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Dienstknecht, Michael [Verfasser]. "A Quantitative Approach to Tower Crane Selection and Positioning on Construction Sites / Michael Dienstknecht." Wuppertal : Universitätsbibliothek Wuppertal, 2019. http://d-nb.info/1186721456/34.

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Němec, Jan. "Modifikace provozních podmínek stroje ALIMAK - SCANDO." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2011. http://www.nusl.cz/ntk/nusl-229824.

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The theme of this master´s thesis with theme the modification of work conditions, it´s aim is to analyse existing and modified operating conditions of the machine and make their comparison. This work includes frame stress analysis, surface burdened by wind, the stability of the location and control of capacity at endurance.

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Vaughan, Joshua Eric. "Dynamics and control of mobile cranes." Diss., Atlanta, Ga. : Georgia Institute of Technology, 2008. http://hdl.handle.net/1853/24736.

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Thesis (Ph.D.)--Mechanical Engineering, Georgia Institute of Technology, 2009.
Committee Chair: William Singhose; Committee Member: John-Paul Clarke; Committee Member: Kok-Meng Lee; Committee Member: Patricio Vela; Committee Member: Rhett Mayor.

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Hrubá, Denisa. "Výšková budova AZ Tower - stavebně technologický projekt." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2014. http://www.nusl.cz/ntk/nusl-227005.

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This master´s thesis is dealing with selected part of the construction technology project of the high-rise building AZ Tower. The main content becomes the realization of supporting gross upper structure. It compiles in detail the most optimal proposal of technological processes, working machines, schedule, control and test plan, occupational safety, environment protection, construction site equipment and last but not least, the coordination of four tower cranes. Apart from the architectural and technically impressive draft of the Czech Republic tallest building it will be interesting to deal with progress of the whole construction. New technologies and elementary construction activities adapting to work at extreme altitudes will be used.

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Books on the topic "Tower crane"

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Garby, Ronald G. IPT's crane and rigging handbook: Mobile-EOT-tower cranes. Edmonton, Alta., Canada: IPT Pub. and Training, 1993.

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The broken tower: A life of Hart Crane. New York: W.W. Norton, 1999.

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The broken tower: A life of Hart Crane. New York, NY: W.W. Norton, 2000.

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Chicago: A view from the top : photographs from atop the city's highest tower crane. Chicago, IL: Skycrane Pub., 2009.

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Jian zhu yong ta shi qi zhong ji ji shu yu guan li: Jianzhu yong tashi qizhongji jishu yu guanli. HefeiShi: Anhui ke xue ji shu chu ban she, 2008.

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Subcommittee, United States Congress House Committee on Government Operations Employment and Housing. Adequacy of federal OSHA tower crane regulations: Hearing before the Employment and Housing Subcommittee of the Committee on Government Operations, House of Representatives, One Hundred First Congress, second session, February 15, 1990. Washington: U.S. G.P.O., 1990.

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United States. Congress. House. Committee on Government Operations. Employment and Housing Subcommittee. Adequacy of federal OSHA tower crane regulations: Hearing before the Employment and Housing Subcommittee of the Committee on Government Operations, House of Representatives, One Hundred First Congress, second session, February 15, 1990. Washington: U.S. G.P.O., 1990.

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United States. Congress. House. Committee on Government Operations. Employment and Housing Subcommittee. Adequacy of federal OSHA tower crane regulations: Hearing before the Employment and Housing Subcommittee of the Committee on Government Operations, House of Representatives, One Hundred First Congress, second session, February 15, 1990. Washington: U.S. G.P.O., 1990.

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Tong, Seng Yuen. Selection and location of tower cranes for use in construction. Manchester: UMIST, 1995.

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Andernach, Stadtmuseum, ed. 450 Jahre Alter Krahnen: Versuch einer Annäherung : Begleitheft zur gleichnamigen Sonderausstellung im Stadtmuseum Andernach vom 9. September 2011-8. April 2012. Andernach: [Stadtmuseum Andernach], 2011.

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Book chapters on the topic "Tower crane"

1

Han, Zeguang, Min Hu, Xinfang Song, Ruiqing Hao, and Xijian Zheng. "Tower Crane Effective Life Assessment Based on Tower Crane Fleet Monitoring System." In Communications in Computer and Information Science, 609–16. Berlin, Heidelberg: Springer Berlin Heidelberg, 2011. http://dx.doi.org/10.1007/978-3-642-19853-3_90.

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Zhang, Zhe, and Jianli Yu. "Predictive Analysis of Faults in Tower Crane." In Advances in Intelligent Systems and Computing, 795–800. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-030-00214-5_99.

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Liu, Diandian, Weisheng Lu, Yuhan Niu, and Hongdi Wang. "A SCO-Based Tower Crane System for Prefabrication Construction." In Proceedings of the 20th International Symposium on Advancement of Construction Management and Real Estate, 981–91. Singapore: Springer Singapore, 2016. http://dx.doi.org/10.1007/978-981-10-0855-9_87.

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Zhang, Menghua, and Xingjian Jing. "Adaptive Neural Network Control for Double-Pendulum Tower Crane Systems." In Neural Computing for Advanced Applications, 83–96. Singapore: Springer Singapore, 2020. http://dx.doi.org/10.1007/978-981-15-7670-6_8.

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Garcia-Perez, O. A., G. Silva-Navarro, and J. F. Peza-Solis. "Trajectory Tracking and Active Vibration Suppression on a Flexible Tower Crane." In Special Topics in Structural Dynamics, Volume 6, 159–66. Cham: Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-53841-9_14.

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Ruan, Songbo, Yeping Peng, Guangzhong Cao, Sudan Huang, and Xiangyong Zhong. "Man-Machine Interaction for an Unmanned Tower Crane Using Wireless Multi-Controller." In Intelligent Robotics and Applications, 381–92. Cham: Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-65289-4_37.

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Wang, Yanping, Dingfang Chen, Haoming Dong, and Bin Wang. "Research on Operating Simulation System for Tower Crane Based on Virtual Reality." In Pervasive Computing and the Networked World, 593–601. Cham: Springer International Publishing, 2014. http://dx.doi.org/10.1007/978-3-319-09265-2_60.

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Zhang, Menghua, Yongfeng Zhang, Huimin Ouyang, Changhui Ma, and Xingong Cheng. "Modeling and Adaptive Control for Tower Crane Systems with Varying Cable Lengths." In Proceedings of the 11th International Conference on Modelling, Identification and Control (ICMIC2019), 215–26. Singapore: Springer Singapore, 2019. http://dx.doi.org/10.1007/978-981-15-0474-7_21.

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Trong, Dang Xuan, and Nguyen Tien Khiem. "Modal Analysis of Tower Crane with Cracks by the Dynamic Stiffness Method." In Topics in Modal Analysis & Testing, Volume 10, 11–22. Cham: Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-54810-4_2.

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Wang, Bo. "Preliminary Study on Optimum Design of Tower Crane Boom Based on Structural Bionics." In Advances in Intelligent Systems and Computing, 1517–22. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-25128-4_187.

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Conference papers on the topic "Tower crane"

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Vaughan, Joshua, William Singhose, Paulo Debenest, Edwardo Fukushima, and Shigeo Hirose. "Initial Experiments on the Control of a Mobile Tower Crane." In ASME 2007 International Mechanical Engineering Congress and Exposition. ASMEDC, 2007. http://dx.doi.org/10.1115/imece2007-42372.

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Cranes are used extensively throughout the world in a wide variety of construction and material handling applications. The speed at which these cranes are operated is limited by payload oscillation. Input shaping is one method that reduces this oscillation, allowing higher speeds and improving operational efficiency. Another method to improve the operational capabilities of cranes is to allow base motion. This paper presents initial experimental results from a portable, mobile tower crane. A theoretical model of the crane is presented and experimentally verified. The oscillatory dynamics of the crane are highlighted and controllers to combat these unwanted dynamics are presented.

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Capkova, Romana, and Alena Kozakova. "Damping of Tower Crane Payload Vibrations." In 2019 6th International Conference on Advanced Control Circuits and Systems (ACCS) & 2019 5th International Conference on New Paradigms in Electronics & information Technology (PEIT). IEEE, 2019. http://dx.doi.org/10.1109/accs-peit48329.2019.9062903.

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Takagi, Kiyoshi, and Hidekazu Nishimura. "Decentralized Control of a Tower Crane." In ASME 1999 Design Engineering Technical Conferences. American Society of Mechanical Engineers, 1999. http://dx.doi.org/10.1115/detc99/movic-8402.

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Abstract This paper deals with modeling and control of a crane mounted on a tower-like flexible structure. A fast transfer of the load causes the sway of the load rope and the vibration of the flexible structure. Our object is to control both the sway and the vibration by the inherent capability of the tower crane. This paper makes its three-dimensional models for simulation and reduced-order-model in order to design the decentralized control system. Then, we design the decentralized H∞ compensator and verify the efficiency by simulations and experiments.

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Karkoub, Mansour, Tzu Sung Wu, and Chien Ting Chen. "H ∞ Based Adaptive Fuzzy Control of a Tower Crane System." In ASME 2012 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2012. http://dx.doi.org/10.1115/imece2012-86092.

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Tower cranes are very complex mechanical systems and have been the subject of research investigations for several decades. Research on tower cranes has focused on the development of dynamical models (linear and nonlinear) as well as control techniques to reduce the swaying of the payload. Inherently, the dynamical model of the tower crane is highly nonlinear and classified as under-actuated. The crane system has potentially six degrees of freedom but only three actuators. Also, the actuators are far from the payload which makes the system non-colocated. The dynamic model describing the motion of the payload from point to point is affected by uncertainties, time delays and external disturbances which may lead to inaccurate positioning, reduce safety and efficacy of the overall system. It is proposed here to use an H∞ based adaptive fuzzy control technique to control the swaying motion of a tower crane. This technique will overcome modeling inaccuracies, such as drag and friction losses, effect of time delayed disturbances, as well as parameter uncertainties. The proposed control law for payload positioning is based on indirect adaptive fuzzy control. A fuzzy model is used to approximate the dynamics of the tower crane; then, an indirect adaptive fuzzy scheme is developed for overriding the nonlinearities and time delays. The advantage of employing an adaptive fuzzy system is the use of linear analytical results instead of estimating nonlinear system functions with an online update law. The adaptive fuzzy scheme fuses a Variable Structure (VS) scheme to resolve the system uncertainties, and the external disturbances such that H∞ tracking performance is achieved. A control law is derived based on a Lyapunov criterion and the Riccati-inequality to compensate for the effect of the external disturbances on tracking error so that all states of the system are uniformly ultimately bounded (UUB). Therefore, the effect can be reduced to any prescribed level to achieve H∞ tracking performance. Simulations are presented here to illustrate the performance of the proposed control design.

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Kruk, Dawid, and Maciej Sulowicz. "AHRS Based Anti-Sway Tower Crane Controller." In 2019 20th International Conference on Research and Education in Mechatronics (REM). IEEE, 2019. http://dx.doi.org/10.1109/rem.2019.8744117.

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Shijun, Song, Li Lei, Wang Jiyong, and Mao Ruinian. "APDL language-based optimization of tower crane." In 2010 International Conference on Digital Manufacturing and Automation (ICDMA). IEEE, 2010. http://dx.doi.org/10.1109/icdma.2010.200.

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Du, Jian, Hua Jiang, Jin Wang, Shuai Wang, and Yangbo Hu. "A safety protect system of tower crane." In International Conference on Industrial Electronics and Engineering. Southampton, UK: WIT Press, 2014. http://dx.doi.org/10.2495/iciee140031.

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Wu, Tzu Sung, and Mansour Karkoub. "Robust Anti-Swing Adaptive Fuzzy Tracking Control for Tower Crane Systems With Both Dead-Zone Band and Time-Delays Uncertainties." In ASME 2015 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2015. http://dx.doi.org/10.1115/imece2015-51733.

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Complex mechanical systems, such as tower cranes, are known to be highly nonlinear, under-actuated, and non-colocated, which makes their closed-loop control very challenging. The interconnected components of these systems undergo complex dynamic phenomena, such as friction, which lead to energy or momentum transmission delays. The complexity of such systems is further complicated by external disturbances and nonlinearities resulting from using hydraulic and/or electrical actuators, mechanical joints, gears, etc., which result in the formation of dead-zones, backlash, and hysteresis. A dead-zone, which constitutes a significant non-smooth nonlinearity, severely limits the performance of many mechanical systems such as the tower crane. Previous works on the control of tower cranes were based on accurate determination of their actuated states. In this work, a robust control technique based on adaptive fuzzy theory is investigated for anti-swing and trajectory tracking of tower crane systems. The system is subject to uncertainties in parameter parameters, time delays, external disturbances, and unknown actuator nonlinearities. The unknown actuator nonlinearities, from the jib and tower motors, are characterized by dead-zone bands (as opposed to the typical crisp dead-zone functions). First, fuzzy logic systems with on-line adaptations are utilized to evaluate the unknown nonlinear functions. The proposed control scheme uses the H∞ control technique to develop compensators to overcome the effects of parameter variations, time delays, external disturbances, and unknown actuator dead-zone band nonlinearities. The proposed control scheme ensures the stability of the closed-loop system and achieves desired tracking precision such that the states of the tower crane system are ultimately uniformly bounded (UUB) and guarantees an H∞ norm bound constraint on disturbance attenuation for all admissible uncertainties based on the Lyapunov criterion. Simulation results show the validity of this approach for the tower crane system.

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Zheng, Xi-jiana, Zhuan-zhen Lv, and Zheng-yic Xie. "Study on structural effective life of tower crane and monitoring system for tower crane fleet based on systems engineering." In 2010 IEEE International Conference on Intelligent Computing and Intelligent Systems (ICIS 2010). IEEE, 2010. http://dx.doi.org/10.1109/icicisys.2010.5658540.

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Capkova, Romana, and Alena Kozakova. "Experimental Modelling and Control of a Tower Crane." In 2019 22nd International Conference on Process Control (PC19). IEEE, 2019. http://dx.doi.org/10.1109/pc.2019.8815327.

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Reports on the topic "Tower crane"

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Manning, Jr, Weinreich Walter P., and Dieter. Tower Cranes in Shipyards: A Study. Fort Belvoir, VA: Defense Technical Information Center, January 1986. http://dx.doi.org/10.21236/ada443982.

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Worker dies when tower crane and water tower crash to the ground. U.S. Department of Health and Human Services, Public Health Service, Centers for Disease Control and Prevention, National Institute for Occupational Safety and Health, January 2001. http://dx.doi.org/10.26616/nioshsface00ia031.

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Mobile tower crane falls 180 feet to the ground killing the crane operator. U.S. Department of Health and Human Services, Public Health Service, Centers for Disease Control and Prevention, National Institute for Occupational Safety and Health, January 1998. http://dx.doi.org/10.26616/nioshsface97ia052.

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A crane operator is knocked off a truck bed and crushed by an unsecured 40-foot tower crane jib. U.S. Department of Health and Human Services, Public Health Service, Centers for Disease Control and Prevention, National Institute for Occupational Safety and Health, February 2002. http://dx.doi.org/10.26616/nioshsface01ca006.

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