scholarly journals Cyclic Behaviour of Beam-Column Dowel Connection in Precast Elements

2021 ◽  
Author(s):  
M. Moldovan ◽  
M. Nedelcu ◽  
Z. Kovacs
Keyword(s):  
Cyclic Behaviour ◽  
Dowel Connection ◽  
Precast Elements

Design of precast reinforced concrete structures of frame buildings: a new set of rules

2019 ◽  
pp. 4-9 ◽  
Keyword(s):  
Reinforced Concrete ◽  
Concrete Structures ◽  
Reinforced Concrete Structures ◽  
Building Frames ◽  
Fine Grained ◽  
Rigid Frame ◽  
Floor Slabs ◽  
Frame Buildings ◽  
Spatial System ◽  
Precast Elements

Currently, prefabricated reinforced concrete structures are widely used for the construction of buildings of various functional purposes. In this regard, has been developed SP 356.1325800.2017 "Frame Reinforced Concrete Prefabricated Structures of Multi-Storey Buildings. Design Rules", which establishes requirements for the calculation and design of precast reinforced concrete structures of frame buildings of heavy, fine-grained and lightweight structural concrete for buildings with a height of not more than 75 m. The structure of the set of rules consists of eight sections and one annex. The document reviewed covers the design of multi-story framed beam structural systems, the elements of which are connected in a spatial system with rigid (partially compliant) or hinged joints and concreting of the joints between the surfaces of the abutting precast elements. The classification of structural schemes of building frames, which according to the method of accommodation of horizontal loads are divided into bracing, rigid frame bracing and framework, is presented. The list of structural elements, such as foundations, columns, crossbars, ribbed and hollow floor slabs and coatings, stiffness elements and external enclosing structures is given; detailed instructions for their design are provided. The scope of the developed set of rules includes all natural and climatic zones of the Russian Federation, except seismic areas with 7 or more points, as well as permafrost zones.

An innovative prefabricated building system for the seismic regions

2020 ◽  
pp. 127-129
Author(s):  
Ž. P. Cuckič
Keyword(s):  
Reinforced Concrete ◽  
Return Period ◽  
Research Work ◽  
Construction Behaviour ◽  
Building System ◽  
Seismic Regions ◽  
Earthquake Effects ◽  
Precast Elements ◽  
Prefabricated Building

At the end of a decade-long research work at the Moravamont plant in Gnjilane, a new completely prefabricated building system was created from reinforced concrete and prestressed precast elements on the track, which was called Moravamont 2000. Presented in paper final results demonstrates that the construction is well and rationally designed, that the construction behaviour for the maximum expected earthquake effects with a return period of 500 years, according to the criterion of regulation, is resistant and resistant to an earthquake without major damage.

Influences of initial static shear stress on the cyclic behaviour of over consolidated soft marine clay

2021 ◽  
Vol 224 ◽  
pp. 108747
Author(s):  
Jun Wang ◽  
Ming Dai ◽  
Yuanqiang Cai ◽  
Lin Guo ◽  
Yunguo Du ◽  
...  
Keyword(s):  
Shear Stress ◽  
Marine Clay ◽  
Cyclic Behaviour ◽  
Static Shear

Component-based method for quasi-static cyclic behaviour of steel joints

2021 ◽  
Vol 181 ◽  
pp. 106551
Author(s):  
Sara Oliveira ◽  
Ricardo Costa ◽  
Ashkan Shahbazian ◽  
Carlos Rebelo ◽  
Yukihiro Harada ◽  
...  
Keyword(s):  
Cyclic Behaviour ◽  
Steel Joints

Numerical evaluation on the effect of steel bar corrosion on the cyclic behaviour of RC bridge piers

2021 ◽  
Vol 44 ◽  
pp. 2393-2398
Author(s):  
Rajib Kumar Biswas ◽  
Mistuyasu Iwanami ◽  
Nobuhiro Chijiwa ◽  
Kazuhide Nakayama
Keyword(s):  
Numerical Evaluation ◽  
Bridge Piers ◽  
Cyclic Behaviour ◽  
Steel Bar ◽  
Rc Bridge Piers

Investigation of Grouted Coupler Connection Details for Accelerated Bridge Construction

2021 ◽  
pp. 036119812199939
Author(s):  
Brent Phares ◽  
Yoon-Si Lee ◽  
Travis K. Hosteng ◽  
Jim Nelson
Keyword(s):  
Crack Width ◽  
High Performance ◽  
Static Load ◽  
High Performance Concrete ◽  
Precast Concrete ◽  
Chloride Penetration ◽  
Load Testing ◽  
Test And Evaluation ◽  
Load Tests ◽  
Precast Elements

This paper presents a laboratory investigation on the performance of grouted rebar couplers with the connection details similar to those utilized on the precast concrete elements of the Keg Creek Bridge on US 6 in Iowa. The testing program consisted of a series of static load tests, a fatigue test, and evaluation of the chloride penetration resistance of laboratory specimens. The goal of this testing was to evaluate the ability of the grouted rebar couplers to develop flexural capacity at the joint between the precast elements as well as the durability of the connection. For structural load testing, seven full-scale specimens, each with #14 epoxy-coated rebars spliced by epoxy-coated grouted couplers, were fabricated and tested in three different loading cases: four-point bending, axial tension plus bending, and a cyclic test of the system in bending. The static load testing demonstrated that the applied axial load had a minimal effect on the formation of cracks and overall performance of the connection. When ultra-high performance concrete was used as a bedding grout, the initiation of crack was slightly delayed but no considerable improvement was observed in the magnitude of the crack width during loading or the crack closure on unloading. The results of the seventh specimen, tested in fatigue to 1 million cycles, showed little global displacement and crack width throughout the test, neither of which expanded measurably. No evidence of moisture or chloride penetration was detected at the grouted joint during the 6-month monitoring.

Recent advances in the technologies of connection for panel structures: Design and cost analysis of different solutions with X-shaped dissipative connectors

2016 ◽  
Vol 20 (3) ◽  
pp. 299-315
Author(s):  
Massimo Latour
Keyword(s):  
Finite Element ◽  
Cost Reduction ◽  
Design Criterion ◽  
Classical Solutions ◽  
Finite Element Analyses ◽  
Seismic Damper ◽  
Classical Systems ◽  
Cyclic Behaviour ◽  
Energy Dissipation Capacity ◽  
The Cost

In this work, a recently patented seismic damper to be applied to structures composed by systems of panels is presented. In particular, the article is devoted to characterize the behaviour of the proposed connector by means of an experimental and numerical analysis and to provide some information about the cost of the elements needed to realize the damper, accounting for the manufacturing process. The experimental analysis has regarded five specimens tested under different loading conditions, and it has been used as a term of comparison with the classical systems of connection currently employed in these structures. Afterwards, in the article, a design criterion able to control the capacity and ductility of the device by simply varying the shape of the damper is presented and its accuracy is evaluated by performing finite element analyses. The results of the experimental and finite element analyses are very promising in terms of cyclic behaviour and energy dissipation capacity and reveal that the design of the element can be accurately controlled by means of the proposed approach. Furthermore, the cost estimate has revealed that the proposed damper is also cheaper than the classical solutions with a cost reduction of about 40%.

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