1、第二篇第二篇 鋼筋混凝土和預(yù)應(yīng)力混凝土簡(jiǎn)支梁橋鋼筋混凝土和預(yù)應(yīng)力混凝土簡(jiǎn)支梁橋第1章 概論武漢理工大學(xué)交通學(xué)院道路橋梁工程系Dept of Road & Bridge Engineering, School of Transportation, Wuhan University of Technology本章內(nèi)容 2.1 鋼筋混凝土和預(yù)應(yīng)力混凝土梁橋的一般特點(diǎn) 2.2 簡(jiǎn)支梁橋的主要類(lèi)型及其適用情況武漢理工大學(xué)交通學(xué)院道路橋梁工程系Dept of Road & Bridge Engineering, School of Transportation, Wuhan Univers

2、ity of Technology2.1鋼筋混凝土和預(yù)應(yīng)力混凝土梁橋的一般特點(diǎn) Reinforced and prestressed concrete girder bridge features 武漢理工大學(xué)交通學(xué)院道路橋梁工程系Dept of Road & Bridge Engineering, School of Transportation, Wuhan University of Technology知識(shí)點(diǎn)：鋼筋混凝土和預(yù)應(yīng)力混凝土梁橋的一般特點(diǎn)，開(kāi)始講解這個(gè)知識(shí)點(diǎn)施工方法 Construction method整體式 ( Overall style )節(jié)段式縱向、橫向分縫

3、( Segmental style use horizontal and vertical joint )2.1鋼筋混凝土和預(yù)應(yīng)力混凝土梁橋的一般特點(diǎn) Reinforced and prestressed concrete girder bridge features 鋼筋混凝土梁橋的優(yōu)缺點(diǎn) The advantages and disadvantages of concrete girder bridges 造價(jià)低 ( Low cost ) 耐久性好 ( Good durability ) 可塑性強(qiáng) ( Well plastic ) 剛度大 ( Great rigidity ) 噪音小 (

4、Small noise ) 自重大 ( Great self-weight ) 鋼筋混凝土梁帶裂縫工作 ( Concrete girder bridges work with cracks )武漢理工大學(xué)交通學(xué)院道路橋梁工程系Dept of Road & Bridge Engineering, School of Transportation, Wuhan University of Technology2.1鋼筋混凝土和預(yù)應(yīng)力混凝土梁橋的一般特點(diǎn) Reinforced and prestressed concrete girder bridge features 預(yù)應(yīng)力混凝土梁橋的優(yōu)

5、點(diǎn) The advantages of prestressed concrete girder bridges 預(yù)應(yīng)力的作用 ( Role of prestress ) 可以使用高強(qiáng)材料 ( High strength material could be used ) 更適合于裝配式橋梁 ( More suitable to assembly-type bridges )武漢理工大學(xué)交通學(xué)院道路橋梁工程系Dept of Road & Bridge Engineering, School of Transportation, Wuhan University of Technology知

6、識(shí)點(diǎn)：鋼筋混凝土和預(yù)應(yīng)力混凝土梁橋的一般特點(diǎn)，講解結(jié)束本章內(nèi)容 2.1 鋼筋混凝土和預(yù)應(yīng)力混凝土梁橋的一般特點(diǎn) 2.2 簡(jiǎn)支梁橋的主要類(lèi)型及其適用情況武漢理工大學(xué)交通學(xué)院道路橋梁工程系Dept of Road & Bridge Engineering, School of Transportation, Wuhan University of Technology2.2簡(jiǎn)支梁橋的主要類(lèi)型及其適用情況 Main types and application of girder bridge按截面形式劃分Classification based on the structural secti

7、on板梁橋 ( Plate girder bridge )肋板式截面 ( Web-type crosssection ) 箱形截面 ( Box cross section ) 武漢理工大學(xué)交通學(xué)院道路橋梁工程系Dept of Road & Bridge Engineering, School of Transportation, Wuhan University of Technology知識(shí)點(diǎn)：簡(jiǎn)支梁橋的主要類(lèi)型及其適用情況，開(kāi)始講解這個(gè)知識(shí)點(diǎn)2.2簡(jiǎn)支梁橋的主要類(lèi)型及其適用情況 Main types and application of girder bridge武漢理工大學(xué)交通學(xué)

8、院道路橋梁工程系Dept of Road & Bridge Engineering, School of Transportation, Wuhan University of Technology實(shí)心板Solid slab肋板Slab with ribs箱梁Box girderSpan increasing 跨度增加25-30m25-35m2.2簡(jiǎn)支梁橋的主要類(lèi)型及其適用情況 Main types and application of girder bridge板梁橋 ( Plate girder bridge ) 施工方便 ( Facilitate construction ) 自

9、重大 ( Big self-weight ) 空心板、實(shí)心板 ( Hollow plate, solid plate ) 適合于小跨徑橋梁 ( Suitable for small-span bridges )武漢理工大學(xué)交通學(xué)院道路橋梁工程系Dept of Road & Bridge Engineering, School of Transportation, Wuhan University of Technology2.2簡(jiǎn)支梁橋的主要類(lèi)型及其適用情況 Main types and application of girder bridge肋板式截面 ( Web-type cros

10、ssection ) I形、T形 ( I-shaped, T-shaped ) 截面效率指標(biāo) ( Cross-sectional efficiency index ) 多用于縱向分縫裝配式橋梁 ( More for assembly bridge which has vertical joint ) 適合于中等跨徑簡(jiǎn)支橋梁 ( Suitable for middle-span simple bridge )武漢理工大學(xué)交通學(xué)院道路橋梁工程系Dept of Road & Bridge Engineering, School of Transportation, Wuhan Univers

11、ity of Technology2.2簡(jiǎn)支梁橋的主要類(lèi)型及其適用情況 Main types and application of girder bridge箱形截面 ( Box cross section ) 單箱單室、單箱多室 ( Single-box with single-room, single-box with many rooms ) 分離多箱 ( Many boxes separated ) 整體性能好，抗扭慣矩大 ( Overall performance is good and has great torsion moment of inertia ) 上下緣均可受壓、適合于連續(xù)橋梁 ( Can be pressed both on top and bottom edge, suitable for continuous bridge ) 適合中等以上跨徑橋梁 ( Suitable for over middle-span bridges ) 施工模板復(fù)雜 ( Complex construction formwork )武漢理工大學(xué)交通學(xué)院道路橋梁工程系Dept of Road & Bridge Engineering, School of Tr