Study on construction technology of hydraulic climbing formwork for super high-rise building under aluminum formwork system

Li, Shimin; Yu, Ziqiang; Meng, Zhaohu; Han, Guangzhao; Huang, Fajing; Zhang, Dafa; Zhang, Yunlong; Zhu, Wenbo; Wei, Dun

doi:10.1088/1755-1315/769/3/032062

Cited by 5 publications

(6 citation statements)

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“…Additionally, the climbing formwork structure is complex, and certain parts are prone to welding defects during factory processing. When subjected to uneven loads, welding defects can lead to failures [5,6,8,[40][41][42][43][44]. Slipform technology is a common construction method for high-rise buildings, composed of three parts: the formwork device, lifting frame, and enclosure; the second part includes the main operating platform, upper auxiliary operating platform, and inner and outer suspension scaffolding; and the third part is hydraulic control and support rods.…”

Section: Traditional Climbing Formwork Jump Formwork Construction Met...mentioning

confidence: 99%

Parametric Automated Design and Virtual Simulation of Building Machine Using BIM

Zou,

Sun,

Pan

et al. 2023

Buildings

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With the continuous development of the construction technology of the main structure of high-rise buildings, traditional construction techniques have been widely used in high-rise building projects. However, these technologies have problems such as low safety, low intelligence, and poor integrity. In order to solve these challenges, the Third Engineering Bureau of China Construction independently developed a new type of construction technology—a high-rise building integrated work construction platform (referred to as a building machine). Building machines has been gradually applied to high-rise building projects due to its intelligence, integration, safety, and other advantages. However, with the increase in the number of high-rise building projects, the traditional way of designing building machine layout programs is inefficient and the design program is complicated to change. To solve these problems, this paper proposes a building machine parametric design and layout and virtual simulation method. This method uses Blender open-source software to model the building machine parametrically and quickly using its visual programming tool Geometry Nodes (GN) and simulates the building machine in the virtual scene through the Unity3D platform. The results show that, compared with the traditional design mode, the method proposed in this paper can quickly complete the scheme design in the design phase of the building machine and display it through the 3D model, which has a better visualization effect, improves the design efficiency, and reduces the design cost, and the Unity simulation platform can also provide the construction personnel with pre-shift education and simulation of the operation of the building machine. This method provides a theoretical basis and guidance for the digital construction of the building machine.

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Section: Traditional Climbing Formwork Jump Formwork Construction Met...mentioning

confidence: 99%

Parametric Automated Design and Virtual Simulation of Building Machine Using BIM

Zou,

Sun,

Pan

et al. 2023

Buildings

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“…Figure 1 illustrates the three-dimensional structural details of the HBM [ 8 , 9 , 10 ]. The levelness of the steel platform (SP) represents the HBM’s posture changes [ 11 , 12 , 13 ]. During the climbing process of the HBM, the telescopic support device retracts from the structurally reinforced concrete shear wall, while the climbing system supports the SP to ascend along the column guide rail.…”

Section: Introductionmentioning

confidence: 99%

Predicting the Posture of High-Rise Building Machines Based on Multivariate Time Series Neural Network Models

Pan,

Huang,

Zhang

et al. 2024

Sensors

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High-rise building machines (HBMs) play a critical role in the successful construction of super-high skyscrapers, providing essential support and ensuring safety. The HBM’s climbing system relies on a jacking mechanism consisting of several independent jacking cylinders. A reliable control system is imperative to maintain the smooth posture of the construction steel platform (SP) under the action of the jacking mechanism. Long Short-Term Memory (LSTM), Gated Recurrent Unit (GRU), and Temporal Convolutional Network (TCN) are three multivariate time series (MTS) neural network models that are used in this study to predict the posture of HBMs. The models take pressure and stroke measurements from the jacking cylinders as inputs, and their outputs determine the levelness of the SP and the posture of the HBM at various climbing stages. The development and training of these neural networks are based on historical on-site data, with the predictions subjected to thorough comparative analysis. The proposed LSTM and GRU prediction models have similar performances in the prediction process of HBM posture, with medians R2 of 0.903 and 0.871, respectively. However, the median MAE of the GRU prediction model is more petite at 0.4, which exhibits stronger robustness. Additionally, sensitivity analysis showed that the change in the levelness of the position of the SP portion of the HBM exhibited high sensitivity to the stroke and pressure of the jacking cylinder, which clarified the position of the cylinder for adjusting the posture of the HBM. The results show that the MTS neural network-based prediction model can change the HBM posture and improve work stability by adjusting the jacking cylinder pressure value of the HBM.

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“…Moreover, the construction quality of exterior walls has improved, which can effectively prevent the common problem of water seepage in exterior walls. 1,2 The infill walls improve the stiffness and strength of the structure. To simplify the calculation, the code introduces a periodic reduction factor to consider the influence of masonry infill walls in the design.…”

Section: Introductionmentioning

confidence: 99%

“…Compared with that of masonry exterior walls, the construction efficiency of cast‐in‐place concrete exterior walls is greatly improved by using aluminum formwork and climbing frame technology. Moreover, the construction quality of exterior walls has improved, which can effectively prevent the common problem of water seepage in exterior walls 1,2 …”

Section: Introductionmentioning

confidence: 99%

Experimental and numerical studies on the seismic performance of fully cast‐in‐situ concrete exterior walls

Jiang,

Su,

Chong

et al. 2024

Earthquake Engineering and Resilience

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To investigate differences in the seismic performance of the main structure between a window sill wall and a coupling beam under two different flexible connections, two coupled shear wall specimens with concrete window sill walls and one counterpart specimen without infill walls (S‐1) were designed for quasistatic tests. The test results indicated the following: In specimen S‐2, fully disconnected by polyvinyl chloride (PVC) tubes, the coupling beam and window sill wall formed a double coupling beam working mode. The failure mode of the main structure of specimens S‐1 and S‐2 was the beam‐hinge mechanism. In specimen S‐3, which was partially disconnected by extruded polystyrene board strips, the coupling beam and the window sill wall worked together as an integral beam and underwent shear failure, revealing significant differences in failure mode compared to S‐1. In addition, the relative deformation between the first‐floor window wall and the main structure of specimen S‐2 could occur, and the interaction between the two was relatively small compared with that of specimen S‐3. Similarly, compared with those of specimen S‐1, the peak loads of specimens S‐2 and S‐3 were approximately 52.37% and 79.99% greater, respectively. The ductility coefficient of S‐2 was equivalent to that of S‐1, while the displacement ductility coefficient of S‐3 decreased by approximately 41.95% compared to that of S‐1. The connection between the main structure and the concrete infill wall with PVC effectively reduced the interaction between the two components and reduced the damage. Finally, MSC. Marc software was used to establish a solid model and simplified model of the equivalent compression bars of all the specimens, and the results were compared with the test results.

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Study on construction technology of hydraulic climbing formwork for super high-rise building under aluminum formwork system

Cited by 5 publications

References 0 publications

Parametric Automated Design and Virtual Simulation of Building Machine Using BIM

Parametric Automated Design and Virtual Simulation of Building Machine Using BIM

Predicting the Posture of High-Rise Building Machines Based on Multivariate Time Series Neural Network Models

Experimental and numerical studies on the seismic performance of fully cast‐in‐situ concrete exterior walls

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