Words and Expressions 胞 Timber Structures post and beam construction 梁柱结构体系 light wood frame construction轻型木结构体系 hybrid construction混合结构 Prof.He Minjuan joi Tongji University,Shanghai China c各向异性 Words and Expressions Introduction of this course 园 多层夹板 ndboard))定向创花板 1.The background of this course )平行木片胶合木 2.The professors who will instruct V(r旋切板胶合 this course 3.The arrangement of this course 4.Teaching material and reference 5.Exam and grade of this course ct工程木#品 1.The background of this course 园 2.The professors who will instruct this course UBC The UBC Canada ties of wood ning in English (bilingual and t nents and structures 1
1 Timber Structures Prof. He Minjuan Tongji University, Shanghai China Words and Expressions post and beam construction 梁柱结构体系 light wood frame construction 轻型木结构体系 hybrid construction 混合结构 stud 墙骨柱 joist 搁栅 metal plate 齿板 termite 白蚁 grain 木纹 anisotropic 各向异性 3 Plywood 多层夹板 OSB (Oriented Strandboard) 定向刨花板 Wood I-joist “工”字木 PSL (Parallel strand lumber) 平行木片胶合木 LVL (Laminated veneer lumber) 旋切板胶合木 Glulam (Glued laminated timber) 层板胶合木 Words and Expressions LVL Glulam PSL I-Joist OSB Plywood Wood product工程木产品 Introduction of this course 1.The background of this course 2.The professors who will instruct this course 3.The arrangement of this course 4.Teaching material and reference 5.Exam and grade of this course 1. The background of this course Timber structures in our country History Development The relationship with UBC Canada Teaching in English (bilingual education) 2. The professors who will instruct this course Dr. Frank Lam A Prof. Of the Department of Wood Science, UBC -Physical and strength properties of wood based composites -Reliability-based evaluation of performance - Modeling and testing of timber components and structures subject to seismic and other loadings -Development of random field model to study the within member variation of strength properties in lumber Research Interests
3.The arrangement of this course 脚 4.Teaching material and reference cal 4.Teaching material and reference 园 5.Exam and grade 园 )Wood Design Manual Final exam (3)Other references jpkj.jee.cn/te Introduction of timber structures 煦 The main problems of timber structures 脚 1.Main problems Timber as a structural material The oldest construction material and still one of the 2.The advantages of timber structures most versatile A natural material with inherent flaws and 3.Main structural styles variability We need to recognize its strengths and weaknesse 4.Application of wood in civil engineering Timber design therefore as much an art as a science
2 3. The arrangement of this course Week 3 and 4: A101 The Building of Civil Engineering College Mar 14: 18:30-20:00, A101 The Building of Civil Engineering College 4. Teaching material and reference (1) Timber Engineering 4. Teaching material and reference (2) Wood Design Manual Monitor or representative of a class Borrow from the library of building engineering department (3) Other references Website of this course: jpkj.tjee.cn/te 5. Exam and grade Attendance, reading, discussion Final exam Introduction of timber structures 1.Main problems 2.The advantages of timber structures 3.Main structural styles 4.Application of wood in civil engineering 1. The main problems of timber structures Timber as a structural material The oldest construction material and still one of the most versatile A natural material with inherent flaws and variability We need to recognize its strengths and weaknesses Timber design therefore as much an art as a science
1.The main problems of timber structures 园 1.The main problems of timber structures 园 (1)Decay of wood (2)Fire retardance (3)Termite(伯蚁)contro (4)Different strength in different direction (anisotropic,.各向异性) 1.The main problems of timber structures 1.The main problems of timber structures e of theb ature1-20℃ 1.The main problems of timber structures 2.The advantages of timber structures sion perpe nd shear sres at all Makeomshfmuch and cmpe 3
3 1. The main problems of timber structures (1) Decay of wood (2) Fire retardance (3) Termite (白蚁)control (4) Different strength in different direction (anisotropic,各向异性) 1. The main problems of timber structures Preservative treatment of wood in marine environment 1. The main problems of timber structures • One of the biggest challenges in light timber construction • Also an important benefit of heavy timber construction 1. The main problems of timber structures Requirements: • nutrition (wood) • modest temperature (~ 20℃) • moisture (the only one that can be readily controlled)) 1. The main problems of timber structures Different strength in different direction to grain（木纹）, different forces are applied • Avoid tension perpendicular and shear stresses at all cost • Make use of compression strength of wood as much as possible • Simplify connections and use compression load transfer when possible • Avoid stress concentrations and complex stress patterns 2. The advantages of timber structures • Elements can be fabricated in plants, transported to site and erected. • Steel requires 3 times as much energy as wood to extract, manufacture, transport and construct. • Wood is a renewable resource which, if properly managed and utilized, can enhance our quality of life and sustain our natural environment. • Earthquake actions are generated by acceleration of the mass of a structure. Timber structures are light in weight so that they will generate small earthquake actions
3.Main structural styles of timber structure 恩 3.Main structural styles oftimber structure Ps3 od hoo constructicn(梁柱结枸体系) Posts and beams space far apart,bear all loads and transferred to foundation. m(轻型木结构件系) Pa第厦dhw1 m construetio spans a 3.Main structural styles of timber structure 3.Main structural styles of timber structure Balloon framing Platform framing From latter part of thec entury to early part of the 20 centur 3.Main structural styles of timber structure 3.Main structural styles of timber structure framing -Platform framing Ad小vantages Economy nd d ing or decking ()Studs are high
4 3. Main structural styles of timber structure Posts and beams space far apart, bear all loads and transferred to foundation. Wood frame construction, using smaller members spaced closely together in load sharing arrangements, offers economy, strength, and flexibility that can be applied to not only residential housing but also large commercial buildings when provisions are made for longer spans and larger loads. ——Platform framing（平台式框架结构） ——Balloon framing （连续式框架结构） 3. Main structural styles of timber structure Posts and beams space far apart, bear all loads and transferred to foundation. 3. Main structural styles of timber structure Walls are one story high. The preceding floor provides a working surface. 1940s — now Platform framing 3. Main structural styles of timber structure Balloon framing Studs（墙骨柱） for exteriors are continuous From latter part of the 19th century to early part of the 20th century 3. Main structural styles of timber structure ——Platform framing (1) Use closely spaced members of dimension lumber combined with sheathings to form structures. (2) Studs are one story high. 3. Main structural styles of timber structure ——Platform framing Making use of lumber in a range of grades and dimensions, and combined action of the framing and the sheathing or decking. I-Joist OSB LVL Plywood Finger-joisted studs Economy
3.Main structural styles of timber structure 3.Main structural styles of timber structure ods mmaonPlatform framing dfm consrueikemPlatform framing Advantages Simplicity and ease of erection Advantages Good w eat preservation and 3.Main structural styles of timber structure 园 3.Main structural styles oftimber structure enstrston-Platform framing Platform framing Advantages Short construction period Appllcations Trusses delivered ters,pl 4.Applications 园 4.Applications 品 ood IJoists 5
5 3. Main structural styles of timber structure ——Platform framing The floor is assembled separately from the walls. The preceding floor provides a working surface for assembly and erection Floor used for erection Erection without crane Simplicity and ease of erection 3. Main structural styles of timber structure ——Platform framing Space between the framing members provides location for fixing pipe, wire and insulation. Drainage pipe Vent pipe Insulation Electrical wire Good ventilation, heat preservation and insulation 3. Main structural styles of timber structure ——Platform framing Many of elements such as studs, joists, rafters, trusses and wood based sheathings can be delivered by factories and assembled on site. Lumbers for studs, joist and rafters Trusses delivered Short construction period 3. Main structural styles of timber structure ——Platform framing Light wood frame construction is used for residential construction, shopping centers, plazas, service and maintenance buildings etc. 28 4. Applications Glued laminated timber (Glulam) 层板胶合木 Laminated Veneer Lumber (LVL) 旋切板胶合木 Parallel Strand Lumber (PSL) 平行木片胶合木 Wood I-Joists 工字木 Metal plate connected Wood Trusses 轻型木桁架 Panel Products — Plywood (多层夹板) and OSB (定向刨花板) Code referenced or proprietary connectors 4. Applications Wood I-Joists
4.Applications 4.Applications god Prguss Veneer Lumber (LVL) Glued laminated timber (Glulam Glulam 4.Applications 4.Applications Metal plate connected Wood Tr e conr 4.Applications 4.Applications Motal plate connected Wood Trusse Glued lam are well suited to lar 6
6 4. Applications Glued laminated timber (Glulam) Glulam 4. Applications Laminated Veneer Lumber (LVL) Panel Products (Plywood and OSB) I-Joist OSB LVL Plywood Finger-joisted studs 4. Applications Metal plate connected Wood Trusses 4. Applications Metal plate connected Wood Trusses 4. Applications Metal plate connected Wood Trusses 4. Applications Glued laminated timber (Glulam) Parallel Strand Lumber (PSL) are well suited to larger project applications
4.Applications 4.Applications 4.Applications 4.Applications are we 4.Applications 园 4.Applications oie 新 1
7 4. Applications Glued laminated timber (Glulam) Parallel Strand Lumber (PSL) are well suited to larger project applications 4. Applications Glued laminated timber (Glulam) Parallel Strand Lumber (PSL) are well suited to larger project applications 4. Applications Glued laminated timber (Glulam) Parallel Strand Lumber (PSL) are well suited to larger project applications 4. Applications Glued laminated timber (Glulam) Parallel Strand Lumber (PSL) are well suited to larger project applications 4. Applications Glued laminated timber (Glulam) Parallel Strand Lumber (PSL) are well suited to larger project applications 4. Applications Materials used in Office and administration spaces of Forestry Center,UBC Dimension lumber interior walls Dimension lumber exterior walls sheathed with plywood to perform as shear walls PSL columns, Glued laminated beam, Wood-I floor joists Plywood floor sheathed with plywood to perform as a flat diaphragm
4.Applications 4.Applications 4.Applications 4.Applications Forestry Center.UBC 4.Applications 4.Applications orestry Center,UB
8 4. Applications 4. Applications 4. Applications 4. Applications Forestry Center,UBC 4. Applications Forestry Center,UBC 4. Applications Forestry Center,UBC
4.Applications 4.Applications Forestry Center,UB 4.Applications in China 融 4.Applications in China Xishan Vila in Beijing Vancouver Garden in Being 4.Applications in China 园 4.Applications in China Orange County in Beng (Hyrid 9」
9 4. Applications Forestry Center,UBC 4. Applications Forestry Center,UBC Xishan Villa in Beijing 4. Applications in China Vancouver Garden in Beijing 4. Applications in China Orange County in Beijing (Hybrid construction) 4. Applications in China 4. Applications in China
4.Applications in China 4.Applications in China 4.Applications in China 4.Applications in China 4.Applications in China 4.Applications in China 人 0
10 4. Applications in China Rebuilding of historical constructions 4. Applications in China Personalities’ houses，such as Huqingyutang in Hangzhou city, are rebuilt or repaired all over of China. 4. Applications in China Buildings of tourist constructions Qibao Baoding Hangzhou 4. Applications in China Buildings of sight-seeing constructions, such as timber bridges, corridors, rest platforms, pavilions, lamp piles, sign boards and parterres etc. 4. Applications in China 4. Applications in China