The construction process for pre-stressed ultra high performance concrete communication tower

Towers are important structures for installing radio equipment to emit electromagnetic waves that allow radio, television and/or mobile communications to function. Feasibility, cost, and speed of the construction are considered in the design process as well as providing stability and functionality for the communication tower. This study proposes the new design for construction of segmental tubular section communication tower with ultra-high-performance fibre concrete (UHPFC) material and prestress tendon to gain durability, ductility, and strength. The proposed mix design for UHPFC in this study which used for construction of communication tower is consisted of densified Silica Fume, Silica fine and coarse Sand and hooked-ends Steel Fiber. The prestressed tendon is used in the tower body to provide sufficient strength against the lateral load. The proposed design allows the tower to be built with three precast segments that are connected using bolts and nuts. This paper presents a novel method of construction and installation of the communication tower. The advantages of proposed design and construction process include rapid casting of the precast segment for the tower and efficient installation of segments in the project. The use of UHPFC material with high strength and prestress tendon can reduce the size and thickness of the tower as well as the cost of construction. Notably, this material can also facilitate the construction and installation procedure.

[1]  H. M. Saleh,et al.  Macro- and nanomaterials for improvement of mechanical and physical properties of cement kiln dust-based composite materials , 2018, Journal of Cleaner Production.

[2]  Alejandro Ramírez-Gaytán,et al.  Seismic vulnerability enhancement of medieval and masonry bell towers externally prestressed with unbonded smart tendons , 2016 .

[3]  Farzad Hejazi,et al.  New Precast Wall Connection Subjected to Rotational Loading , 2016 .

[4]  A. N. Singh Concrete construction for wind energy towers , 2007 .

[5]  Steffen Marx,et al.  design aspects of concrete towers for wind turbines , 2015 .

[6]  Kyoung Sun Moon,et al.  Structural Developments in Tall Buildings: Current Trends and Future Prospects , 2007 .

[7]  F. Hejazi,et al.  Effect of an Opening on Reinforced Concrete Hollow Beam Web Under Torsional, Flexural, and Cyclic Loadings , 2016 .

[8]  H. M. Saleh,et al.  Impact of water flooding on hard cement-recycled polystyrene composite immobilizing radioactive sulfate waste simulate , 2019, Construction and Building Materials.

[9]  Abang Abdullah Abang Ali,et al.  A new precast wall connection subjected to monotonic loading [Open access article] , 2016 .

[10]  Ahmad Abdelrazaq Brief on the Construction Planning of the Burj Dubai Project, Dubai, UAE , 2008 .

[11]  Young Soo Yoon,et al.  Structural performance of ultra-high-performance concrete beams with different steel fibers , 2015 .

[12]  H. M. Saleh,et al.  Influence of severe climatic variability on the structural, mechanical and chemical stability of cement kiln dust-slag-nanosilica composite used for radwaste solidification , 2019, Construction and Building Materials.

[13]  H. M. Saleh,et al.  Mechanical and physical characterization of cement reinforced by iron slag and titanate nanofibers to produce advanced containment for radioactive waste , 2019, Construction and Building Materials.

[14]  B. Graybeal,et al.  Modeling Structural Performance of Ultrahigh Performance Concrete I-Girders , 2012 .

[15]  M. W. LaNier,et al.  LWST Phase I Project Conceptual Design Study: Evaluation of Design and Construction Approaches for Economical Hybrid Steel/Concrete Wind Turbine Towers; June 28, 2002 -- July 31, 2004 , 2005 .

[16]  H. M. Saleh,et al.  Performance of cement-slag-titanate nanofibers composite immobilized radioactive waste solution through frost and flooding events , 2019, Construction and Building Materials.

[17]  A. Vyshedskiy,et al.  Automated Analysis of Crackles in Patients with Interstitial Pulmonary Fibrosis , 2010, Pulmonary medicine.

[18]  Xiang-guo Wu,et al.  Preliminary design and structural responses of typical hybrid wind tower made of ultra high performance cementitious composites , 2013 .

[19]  Benjamin A. Graybeal,et al.  Characterization of the Behavior of Ultra-High Performance Concrete , 2005 .

[20]  Jason C. Flietstra Creep and shrinkage behavior of ultra high-performance concrete under compressive loading with varying curing regimes , 2011 .

[21]  Bill Baker,et al.  The Design and Construction of the World’s Tallest Building: The Burj Khalifa, Dubai , 2015 .

[22]  Garas Yanni,et al.  Multi-scale investigation of tensile creep of ultra-high performance concrete for bridge applications , 2009 .

[23]  Xiang-guo Wu,et al.  Innovative Post-tensioned Hybrid Wind Turbine Tower Made of Ultra High Performance Cementitious Composites Segment , 2013 .

[24]  Antoine E. Naaman,et al.  Properties of strain hardening ultra high performance fiber reinforced concrete (UHP-FRC) under direct tensile loading , 2014 .

[25]  Abul K. Azad,et al.  Flexural behavior of hybrid concrete beams reinforced with ultra-high performance concrete bars , 2013 .

[26]  G Chirgwin,et al.  The world’s first RPC road bridge at Shepherds Gully Creek, NSW , 2004 .

[27]  Bhushan Lal Karihaloo,et al.  High performance fibre-reinforced cementitious composite (CARDIFRC) - Performance and application to retrofitting , 2007 .

[28]  Vikram Pakrashi,et al.  Fragility analysis of steel and concrete wind turbine towers , 2012 .