Experimental study of an unsymmetrical prefabricated hybrid steel-bamboo roof truss

Li, Zhi; Li, Tao; Wang, Can; He, Xiaozhou; Xiao, Yan

doi:10.1016/j.engstruct.2019.109781

Cited by 27 publications

(3 citation statements)

References 29 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In the equation𝑓 ℎ is the embedment strength of glubam, 𝑡 1 being the thickness of the minor glubam member in connection; 𝑑 is the diameter of the bolt; 𝑀 𝑦 is the yield moment of the bolt and can be determined or estimated to be 0.3𝑓 𝑢 𝑑 2.6 ; and 𝐹 𝑎𝑥 is the withdrawal capacity of the fastener [34]. In the study of Li et al [35], the value of 𝐹 𝑎𝑥 is taken as zero because the bolts used for glubam connections only have threads on the head part.…”

Section: Table 6 -Measurements and Maximum Axial Load Capacity Of Dif...mentioning

confidence: 99%

A Literature Review On the Use of Bamboo as A Truss Member and Fiber-Reinforced Polymer as A Truss Jointing Material

G. Lucena,

Cruz

2023

IJIE

View full text Add to dashboard Cite

A truss is a structure that has a rigid configuration formed by an assembly of straight members connected by pins. Many roofing systems use trusses, but the wide variety of truss configurations in architecture is an advantage to creating vast arrays of aesthetics in buildings. Steel, mainly plain carbon steel designated A36, is the most used material for truss members and joint connectors. However, these members are both heavy and non-sustainable, soseveral kinds of literature recommend studying the potential of using lightweight and sustainable alternatives. This review focuses on using bamboo in truss and the potential of fiber-reinforced composite as a truss joint connector. Bamboo culms and glued-laminated bamboo (glubam) are the two types of bamboo commonly used in truss fabrication based on the review. Bamboo culms from Dendrocalamus asper exhibit a tensile strength of 340 MPa, while the glubam made of Yushania alpina has 364 MPa. Other mechanical properties of bamboo necessary for the truss analysis are not yet clearly defined, although studies used ASTM D143-09 to determine several mechanical properties of bamboo or glubam. Fiber-reinforced composite can exhibit an enormous array of varieties and still demonstrate a strength close to or even higher than steel. It is lightweight and can reach a tensile strength of 700 MPa. The researcher recommends synthesizing bamboo or glubam as truss members and fiber-reinforced composite as truss joint connectors.

show abstract

Section: Table 6 -Measurements and Maximum Axial Load Capacity Of Dif...mentioning

confidence: 99%

A Literature Review On the Use of Bamboo as A Truss Member and Fiber-Reinforced Polymer as A Truss Jointing Material

G. Lucena,

Cruz

2023

IJIE

View full text Add to dashboard Cite

show abstract

“…Layouts of PCSs are provided in two-dimensional (2D) construction drawing to guide the manufacturing and assembly process. However, it is essential to comprehensively consider the requirements of logistics, manufacturing, transportation, installation, and structural aspects in the splitting design to enhance efficiency and reduce the costs of a construction project [5]. Hence, the optimized design of PCS splitting is a multiobjective problem.…”

Section: Introductionmentioning

confidence: 99%

Automated Prefabricated Slab Splitting Design Using a Multipopulation Coevolutionary Algorithm and BIM

Xu,

Zheng,

et al. 2024

Buildings

View full text Add to dashboard Cite

The prefabricated composite slab (PCS) is an essential horizontal component in a building, which is made of a precast part and a cast-in-place concrete layer. In practice, the floor should be split into many small PCSs for the convenience of manufacturing and installation. Currently, the splitting design of PCS mostly relies on sound knowledge and valuable experience of construction. While rule-based parametric design tools using building information modeling (BIM) can facilitate PCS splitting, the generated solution is suboptimal and limited. This paper presents an intelligent BIM-based framework to automatically complete the splitting design of PCSs. A collaborative optimization model is formulated to minimize the composite costs of manufacturing and installation. Individuals with similar area information are grouped into a subpopulation, and the optimization objective is to minimize the specifications and quantities of PCSs. Through the correlation information within the subpopulation and the shared information among each other, the variable correlation is eliminated to accomplish the task of collaborative optimization. The multipopulation coevolution particle swarm optimization (PSO) algorithm is implemented for the collaborative optimization model to determine the sizes and positions of all PCSs. The proposed framework is applied in the optimized splitting design of PCSs in a standard floor to demonstrate its practicability and efficiency.

show abstract

“…The use of bamboo for manufacturing engineering structures (Ghavami 2005;Li et al 2019b;Liu et al 2022;Lv et al 2019;Méndez Quintero et al 2022;Mimendi et al 2022) and composite materials (Dixon et al 2016(Dixon et al , 2017Qiu and Fan 2020) has attracted extensive attention from researchers, as the concepts of sustainable development and carbon neutrality continue to gain favor. From macro to micro scale, the light weight and good mechanical properties of raw bamboo materials and bamboo fiber reinforced composite materials have been successfully demonstrated (Dixon 2017;Dixon et al 2015;Sharma et al 2015;Song et al 2017).…”

Section: Introductionmentioning

confidence: 99%

Laminated bamboo lumber in compression perpendicular to the grain direction: Experimental investigation and the finite element analysis

Hong

Yang

et al. 2022

Wood Material Science & Engineering

View full text Add to dashboard Cite

Localized damage may occur due to the fact that laminated bamboo lumber (LBL) has a lower compressive strength perpendicular to the grain direction than it does parallel to the grain. In this study, the transverse compressive performance of LBL under entire-surface compression and local-surface compression is investigated. Load-displacement curves, stress-strain relationship, detailed failure modes and basic mechanical properties are obtained. The results show that despite the compressive strength and elastic modulus are nearly same in the two transverse orientations, the failure patterns are distinct due to the layer structure.Ramberg-Osgood relation is utilized to fit the stress-strain curves. Proportional limit strength are determined indicating that specimens compressed locally have a greater load bearing capability. Based on finite element analysis and theoretical study, the mechanism of the enhancement in proportional limit strength is revealed.Equations for determining the bearing load of a specimen under local compression in the elastic stage are derived from the simulation data and logit model, considering the contact length and geometric size of the specimen. Additionally, parametric tests are conducted to determine the effect of bearing shape, bearing area, and loading mode on the stress distribution and bearing capacity.

show abstract

Experimental study of an unsymmetrical prefabricated hybrid steel-bamboo roof truss

Cited by 27 publications

References 29 publications

A Literature Review On the Use of Bamboo as A Truss Member and Fiber-Reinforced Polymer as A Truss Jointing Material

A Literature Review On the Use of Bamboo as A Truss Member and Fiber-Reinforced Polymer as A Truss Jointing Material

Automated Prefabricated Slab Splitting Design Using a Multipopulation Coevolutionary Algorithm and BIM

Laminated bamboo lumber in compression perpendicular to the grain direction: Experimental investigation and the finite element analysis

Contact Info

Product

Resources

About