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A.4,d 1PhD Scholar, Department of Civil Engineering, NIT Calicut, India 2Associate Professor, Department of Civil Engineering, NIT Calicut, India 3Associate Professor, Department of Civil Engineering, NIT Calicut, India 4 PG Student, Department of Civil Engineering, NIT Calicut, India achithrajayasree89@gmail.com, bpraveen@nitc.ac.in, csajithas@nitc.ac.in, droshanrajan1994@gmail.com Keywords: slab, design, three-layer sandwich model, wood armer moments.
Journal of Structural Engineering, Vol. 114, pp. 425-444
Journal of Structural Engineering.
Journal of Structural Engineering, Vol. 136, pp. 837-848
Journal of Structural Engineering, Vol. 109, pp. 891-908.

Analysis and computation of the temperature field of concrete filled steel tubular columns Jinsheng Han a, Shuping Cong b School of Civil Engineering and Architecture, Shandong University of Science and Technology, Qingdao 266510, P.
The precision of the simplified calculation method can satisfy the accuracy requirement of engineering practices.
Because of its importance in structure system and wild application in civil engineering, not only its mechanical properties at normal temperature but also its fire behavior and fire resistance are very important.
According to the Chinese “Code for fire protection design of high-rise civil buildings”, the fire resistance of CFT column is 150 or 180 minutes.
It also can be seen that the calculation accuracy of the Eq.3 can satisfy the precision request in the engineering application.

Research on the Strategies of Ecological Safety and Planning Ke Zhen Sun College of Architecture and Urban Planning, Beijing University of Civil Engineering and Architecture, Beijing 100044, China email: sunkezhen@bucea.edu.cn Keywords: Ecological Safety Strategy, Disaster Prevention Planning, Earthquake Resistant Material and Structure, Seismic Design Abstract.
The strategy of earthquake resistant materials and structural strategy, conceptual design of earthquake engineering, and the reliable technology are discussed in the paper.
Therefore earthquake engineering is lifeline engineering and ecological safe project.
Reliable Technology and Conceptual Design of Earthquake Engineering: Appropriate and reliable technologies have an applied and a reliable signification.
In conceptual design of earthquake engineering, appropriate and reliable tech should be paid attention to.

Introduction Reinforced concrete structure combines the advantages of concrete and steel, which is the preferred form in civil engineering structure design with the lower cost.
According to the experts forecast, the reinforced concrete, as inexpensive civil engineering materials, will also gain a larger application in the next one to two centuries in the developing countries.
Concrete durability, especially steel corrosion caused by the environment, has become the most important and most common diseases to the safety of civil engineering projects.
Journal of American Institute of Chemical Engineering, 1989, 35: 1639-1650
International Journal of Structural Engineering, Vol. 1, No. 1, 2009: 40-58

Effect of Crushed Clay Brick as Partial Fine Aggregate Replacement on Properties of Concrete Mohd Arif Sulaiman1,a*, Syafiqah Ainda Rozi2,b, Khairunisa Muthusamy1,c, Rokiah Othman2,d, A.Omar2,e 1,2,3,4,5Faculty of Civil Engineering Technology, Universiti Malaysia Pahang, 26300 Gambang, Pahang, Malaysia a*mdarif@ump.edu.my, bsyafiqah.ainda0503@gmail.com, ckhairunisa@ump.edu.my, drokiah@ump.edu.my, ePAH21003@student.ump.edu.my.
Therefore, developing an efficient method for recycling C&D waste is a problem for civil and environmental engineering [9].
Klee, "Briefing: The Cement Sustainability Initiative," in Proceedings of the Institution of Civil Engineers-Engineering Sustainability, 2004, vol. 157, no. 1, pp. 9-11: Thomas Telford Ltd
Zhu, "Reuse of clay brick waste in mortar and concrete," Advances in Materials Science and Engineering, vol. 2020, p. 6326178, 2020
Babafemi, "Feasibility of using recycled burnt clay brick waste in cement-based mortar: mechanical properties, durability, and residual strength after exposure to elevated temperatures," International Journal of Civil Engineering, vol. 19, no. 9, pp. 1055-1069, 2021

In order to consider the influence of seismic responses of cable-stayed bridge structural system, different finite element models have been established respectively by finite element analysis software Midas/Civil based on the different states of structural boudary condition in the engineering background of Siyang bridge.
References [1] Wen Xie, Limin Sun: Electric Technology and Civil Engineering (ICETCE) Vol. 1 (2011), p. 5475-5478
Astiz: Engineering Structures Vol. 41 (2012), p. 444-455
[4] Jianzhong Li, Xuezhong Xin: Earthquake Engineering and Engineering Vibration Vol. 18 (1998), p. 67-73.
(In Chinese) [5] Fangwen Wu, Lei Zhao: World Earthquake Engineering Vol. 25 (2009), p. 18-24.

Effects of Marble Waste on Properties of Polymer Concrete Marinela Barbuta1, Adrian Alexandru Serbanoiu1*, Costin Cadere1, Catalina Mihaela Helepciuc (Gradinaru)1 1”Gheorghe Asachi” Technical University of Iaşi Faculty of Civil Engineering and Services, 45 Mangeron Blvd., 700050, Iaşi Romania *corresponding author: E-mail: serbanoiualex@yahoo.com Keywords: polymer concrete, epoxy resin, marble, mechanical characteristics Abstract.
Pofale, Utilization of Industrial Waste Slag as Aggregate in Concrete Applications by Adopting Taguchi’s Approach for Optimization, Open Journal of Civil Engineering 2 (2012) 96-105
Vaidevi, Study on marble dust as partial replacement of cement in concrete, Indian Journal of Engineering 4(9) (2013) 14-16
Aydin, Concrete properties containing fine aggregate marble powder, Journal of Civil Engineering 19 (7) (2015) 2208-2216
Civil Engineering 16(6) (2012) 980-988

Study of the Bending Stiffness and Cable Characteristics of Tension Components TANG Maolin1,a, DU Yaguang2,b, SHEN Ruili3,c,YAN Kun4,d 1Bridge Engineering Department, Southwest Jiaotong University, Chengdu Sichuan 610031, China 2Bridge Engineering Department, Southwest Jiaotong University, Chengdu Sichuan 610031, China 3Bridge Engineering Department, Southwest Jiaotong University, Chengdu Sichuan 610031, China 4Bridge Engineering Department, Southwest Jiaotong University, Chengdu Sichuan 610031, China atmllpl@126.com, bdyguang321@yahoo.cn, crlshen@163.com, dstefyk@163.com Keywords: Tension components; suspension cable; geometric shape; cable property; bending stiffness; tension stiffness; cable element; beam element.
Journal of Architecture and Civil Engineering, 2010, 27(3):41-46
Journal of Civil Engineering and Management, 2010, 16(1): 149–154
Journal of Civil Engineering, 1996, 3(2): 1-6
Journal of Harbin University of Civil Engineering and Architecture, 1986, (3):29-37

The European concrete standard EN 206-1 defines different risks that can occur to a concrete structure [21]: ü It applies to the concrete cast in situ or precast structures and structural precast products for buildings and civil engineering structures.
For this reason, scientists and engineers need to invest more in improved quality of concrete and stimulate innovation.
Benghida, Sun-dried Clay for Sustainable Constructions, International Journal of Applied Engineering Research, 11(06) (2016) 4628-4633
Eren, CO2-full factorial optimization of an ultra-high performance, European Journal of Environmental and Civil Engineering concrete mix design, 2016, pp. 1-14
Civil Eng.

The civil construction area is one of the activities with the highest consumption of raw materials, presenting a large generation of waste.
The civil construction area is one of the activities with the highest consumption of raw materials with large production of waste [6-9].
Kiss, Directions for material recovery of used tires and their use in the production of new products intended for the industry of civil construction and pavements, IOP Conference Series: Materials Science and Engineering. 294 (2018), 012064
Herki, Combined e_ects of densified polystyrene and unprocessed fly ash on concrete engineering properties, Buildings. 7 (2017), 77
The effect of thermal treatment on the properties of expanded polystyrene, Polymer, Engineering and Science. 60 (2020), 2710-2723