Bauen mit Betonfertigteilen im Hochbau

Steinle, Alfred; Bachmann, Hubert; Tillmann, Mathias

doi:10.1002/9783433609101

Cited by 10 publications

(4 citation statements)

References 0 publications

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“…Steel fiber reinforced concrete (SFRC) is currently the material of choice for a broad range of structures such as industrial floors (e.g., in manufacturing or processing plants and storage facilities), prefabricated elements, thin shells, segmental and sprayed as well as cast final tunnel linings, special foundations and slabs on grade, watertight and containment structures (immersed structures, silos, nuclear facilities), and protection and defense structures. Furthermore, its use is also confirmed for many commonplace concrete component design situations, replacing the entire or a large portion of conventional rebar reinforcement in order to improve their load-bearing behavior as well as their serviceability and durability characteristics [ 1 , 2 , 3 , 4 , 5 , 6 , 7 , 8 , 9 , 10 , 11 ]. The use of fiber reinforcement thus plays a vital role in acute current and future construction industry objectives, these being a simultaneous increase in the service life of structures (by limitation of failure probabilities and improved durability) and the reduction of their environmental impact (reduced use of cement and structural steel and thinner cross sections), in addition to their resilience to extreme loads and environmental actions [ 12 , 13 , 14 ].…”

Section: Introductionmentioning

confidence: 99%

Tensile Performance of Headed Anchors in Steel Fiber Reinforced and Conventional Concrete in Uncracked and Cracked State

Spyridis

Mellios

2022

Materials

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Steel fiber reinforced concrete (SFRC) is currently the material of choice for a broad range of structural components. Through the use of SFRC, the entire, or a large portion of, conventional rebar reinforcement can be replaced, in order to improve the load-bearing behavior but also the serviceability and durability characteristics of engineering structures. The use of fiber reinforcement therefore plays a vital role in acute current and future construction industry objectives, these being a simultaneous increase in the service life of structures and the reduction of their environmental impact, in addition to resilience to extreme loads and environmental actions. Next to the extended use of SFRC, modern construction relies heavily on structural connections and assembly technologies, typically by use of bolt-type cast-in and post-installed concrete anchors. This paper addresses the influence of fiber reinforcement on the structural performance of such anchors in SFRC and, particularly, the load bearing behavior of single headed anchors under axial static loads in uncracked and cracked concrete. Along with a presentation of background information on previous studies of SFRC with a focus on anchor concrete breakout failure, the experimental investigations are described, and their results are presented and elaborated on by consideration of various research parameters. A comparison with current design approaches is also provided. The conclusions are deemed useful for structural engineering research and practice.

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Section: Introductionmentioning

confidence: 99%

Tensile Performance of Headed Anchors in Steel Fiber Reinforced and Conventional Concrete in Uncracked and Cracked State

Spyridis

Mellios

2022

Materials

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“…The width of the joints between two purlins facing each other and between the purlin and the concrete truss can be estimated according to [4] and [5]. The width of the joints is the result of the sum of the different possible dimensional deviations during the process of the production and assembly of the beams.…”

Section: Width Of the Jointsmentioning

confidence: 99%

“…The width of the joints between a concrete truss and a column can be estimated according to [4] and [5].…”

Section: Width Of the Jointsmentioning

confidence: 99%

A Structural Analysis of a Factory Hall with a Two-Story Office Building as a Precast and Prestressed Concrete Construction

Befus¹

2023

Preprint

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The objective of this thesis is to develop a precast and prestressed concrete design for a factory hall, which was initially planned as a steel structure. Furthermore, a structural analysis is conducted on several chosen structural elements according to the European Standards and the German Annexes respectively. The analysis is done both by manual calculation and software calculation for comparison and includes the ultimate limit state design, the serviceability limit state design and the design for the state of transportation and assembly of the precast members. Lastly, to illustrate the results of the analysis, an overview drawing with the new concrete design as well as formwork and reinforcement drawings for each of the analyzed structural members are developed.

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“…The application of precast concrete structures originated in Europe in the late 19th century [1]. In contrast to the traditional cast-in-place (CIP), also known as monolithic construction methods, precast concrete structures have gained extensive global usage owing to their superior quality control, heightened construction efficiency, reduced on-site labor requirements, and minimized formwork necessity [2][3][4][5][6][7][8][9][10].…”

Section: Introductionmentioning

confidence: 99%

Hysteretic Behavior of Full-Scale Precast U-Shaped Composite Beam–Column Connections with Large-Diameter Reinforcements under High Axial Compression

Xue,

Lei,

Zhang

et al. 2024

Buildings

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This study introduces precast concrete beam–column connections comprised of composite beams, precast columns, and a monolithic joint core. The composite beams consist of U-shaped beams and floor slabs, leveraging the U-shaped beams for their lightweight nature, acceptable stiffness, and reduced demand for on-site support systems. To mitigate reinforcement congestion in the joint core, the precast connections incorporate large-diameter rebars (greater than 25 mm). This study conducted cyclic loading tests on four full-scale beam–column connections under 0.3 normalized compression, encompassing precast interior and exterior connections, along with two monolithic reference specimens, to investigate their behavior under seismic actions. The results revealed that all specimens exhibited bending failure at the beam ends, with minimal concrete deterioration observed in the joint core areas and columns. The hysteresis curves of the precast specimens and the monolithic connections exhibited a slight pinching effect. The strengths of the interior and exterior precast specimens were 13.3% and 7.8% lower than those of the reference monolithic connections, respectively. The ductility of interior precast connections and monolithic specimens stood at 2.36 and 2.23, respectively, indicating a negligible difference of less than 5%. Meanwhile, the positive and negative ductility of exterior precast connections were 3.06 and 2.34, which was approximately 8% lower than that of the reference connections. Furthermore, the stiffness degradation and energy dissipation capacity of the precast specimens aligned closely with the performance of the reference monolithic ones.

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Bauen mit Betonfertigteilen im Hochbau

Cited by 10 publications

References 0 publications

Tensile Performance of Headed Anchors in Steel Fiber Reinforced and Conventional Concrete in Uncracked and Cracked State

Tensile Performance of Headed Anchors in Steel Fiber Reinforced and Conventional Concrete in Uncracked and Cracked State

A Structural Analysis of a Factory Hall with a Two-Story Office Building as a Precast and Prestressed Concrete Construction

Hysteretic Behavior of Full-Scale Precast U-Shaped Composite Beam–Column Connections with Large-Diameter Reinforcements under High Axial Compression

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