由于如木材、石材、混凝土以及鋼材等現(xiàn)有材料建造的當(dāng)前結(jié)構(gòu)存在著許多問題:重量大、腐蝕嚴(yán)重、性能退化以及其他一些老齡化問題,使得對于新材料的需求顯得尤為迫切。這些問題不僅影響結(jié)構(gòu)的正常使用、結(jié)構(gòu)的服役年限以及維護成本,而且還會帶來大量的安全和事故隱患。所有的這些問題促使人們開始研究高性能的新型建筑材料,例如纖維增強（FRP）復(fù)合材料。FRP復(fù)合材料的主要特點是輕質(zhì)、耐腐蝕以及高強。由于FRP材料具有耐極端荷載的性能,故在海洋環(huán)境以及化工廠中得到廣泛應(yīng)用,通常在這些環(huán)境里結(jié)構(gòu)的最大問題是鋼材的腐蝕問題并伴隨著較高的維護成本。此外,FRP在加固梁、柱以及橋面板等結(jié)構(gòu)構(gòu)件方面也有廣泛應(yīng)用,其中在1980年,FRP復(fù)合材料以GFRP及CFRP板材的形式第一次應(yīng)用于加固混凝土結(jié)構(gòu)中。除上述應(yīng)用外,FRP型材的應(yīng)用也越來越受到工程界的重視。桁架結(jié)構(gòu)與由實體構(gòu)件組成的結(jié)構(gòu)相比,具有輕質(zhì)、安裝迅速簡單、可為結(jié)構(gòu)提供剛度以及承受重大荷載的特點,這使得桁架結(jié)構(gòu)在19世紀(jì)就成為研究一個熱點。桁架結(jié)構(gòu)廣泛應(yīng)用于橋梁、屋架、塔架、車庫等結(jié)構(gòu)中。因為桁架結(jié)構(gòu)只承受軸向荷載,所以FRP型材以其優(yōu)異的單向力學(xué)性能成為桁... 

【文章來源】：東南大學(xué)江蘇省 211工程院校 985工程院校 教育部直屬院校

【文章頁數(shù)】：130 頁

【學(xué)位級別】：碩士

【文章目錄】：
摘要
Abstract
Acknowledgement
Chapter 1 Introduction and Literature Review
    1.1 Overview
    1.2 Fiber reinforced polymer （FRP）:
        1.2.1 Fibers
        1.2.2 Polymer matrix
            1.2.2.1 Thermosetting resin
            1.2.2.2 Thermoplastic resin
    1.3 Civil Engineering Applications
    1.4 FRP trusses
        1.4.1 Recent FRP Truss System
    1.5 FRP Connections
        1.5.1 Mechanical connections
            1.5.1.1 Single Bolted Connections
            1.5.1.2 Multi-Bolted connection
        1.5.2 Bonded-Bolted connections:
    1.6 Objectives
    1.7 Methodology of the investigation
Chapter 2 Material Properties of Basalt Fibre Reinforced Polymer Plates and Bolts
    2.1 Introduction
    2.2 Material
        2.2.1 Material properties:
            2.2.1.1 Tension test
            2.2.1.2 Shear test:
        2.2.2 Shear strength for bolts
            2.2.2.1 Shear test results
    2.3 Summary
Chapter 3 Static Behaviour of Basalt Fibre Reinforced Polymer Multi-bolted Connections
    3.1 Introduction
    3.2 Material
    3.3 Connection specimens
        3.3.1 Connection fabrication
        3.3.2 Experimental Program
            3.3.2.1 Number of bolts
            3.3.2.2 Bolts arrangement
            3.3.2.3 Bolts diameter
            3.3.2.4 Bolts pattern
            3.3.2.5 Connection techniques
    3.4 Test Set-Up
    3.5 Instrumentation
    3.6 Test results:
        3.6.1 Failure Modes
        3.6.2 Number of bolts:
            3.6.2.1 Load-Displacement
            3.6.2.2 Comparison of failure load
        3.6.3 Bolts arrangement
        3.6.4 Bolts' diameter
            3.6.4.1 Load-Displacement
            3.6.4.2 Comparison of failure load
        3.6.5 Bolts pattern
            3.6.5.1 Load- displacement
            3.6.5.2 Comparison of failure load
        3.6.6 Connection techniques
            3.6.6.1 Failure Modes
            3.6.6.2 Load- displacement
            3.6.6.3 Comparison of failure load
    3.7 Summary
Chapter 4 Fatigue Performance of Basalt Fibre Reinforced Polymer Multi-bolted Connections
    4.1 Introduction
    4.2 Experimental program
    4.3 Experimental Set Up and Loading Programs
    4.4 Experimental results
        4.4.1 Bolts type
            4.4.1.1 Comparison of Failure Modes
            4.4.1.2 Fatigue Life and S-N Curves
            4.4.1.3 Post fatigue
        4.4.2 Connection technique
            4.4.2.1 Comparison of Failure Modes
            4.4.2.2 Fatigue Life and S-N Curves
            4.4.2.3 Post fatigue
    4.5 Summary
Chapter 5 Conclusion and Future Work
    5.1 Conclusion
    5.2 Future work
References



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