【正文】
(3)鋼結(jié)構(gòu)的強(qiáng)度、變形及缺陷檢測(cè) 鋼結(jié)構(gòu)強(qiáng)度及形變的檢測(cè),常用的有電測(cè)法與機(jī)測(cè)法。材質(zhì)的單項(xiàng)指標(biāo)不能代表其全部特征,必須依據(jù)常規(guī)試驗(yàn)的各項(xiàng)指標(biāo)進(jìn)行綜合評(píng)定。如傾儀果測(cè)定時(shí)拉鋼絲中間遇有障礙。 測(cè)試時(shí)根據(jù)涂層具體情況確定,首先通過儀器確定有無涂層,因在長期環(huán)境作用下涂層損傷直至消失涂層,涂層消失與否是涂層的重要參數(shù)。超聲波從一種均勻介質(zhì)傳播到另一種均勻介質(zhì)時(shí),分界面上會(huì)發(fā)生聲的反射,從探頭發(fā)射的超聲波,經(jīng)過延遲塊而進(jìn)入被測(cè)件,超聲波到達(dá)分界面時(shí),而被反射回來,又通過延遲塊被接收探頭接收,測(cè)出發(fā)射脈沖到接收脈沖之間的時(shí)間,扣除延遲塊時(shí)間,根據(jù)聲速、時(shí)間、距離三者關(guān)系,求出被測(cè)件的厚度。高強(qiáng)螺栓的質(zhì)量主要控制項(xiàng)目包括最小荷載檢測(cè)、預(yù)拉力復(fù)驗(yàn)、扭距檢測(cè)、扭距系數(shù)復(fù)驗(yàn)及抗滑移系數(shù)檢測(cè)。 The determination of the scope of the static and dynamic two kinds. Machine is mainly determined the deformation test method (such as deflection, inclination and telescopic deformation identical). In addition, there is surface hardness method, the relationship between the hardness and strength is used to obtain the intensity values. Defect detection on steel structure, the monly used ultrasonic method and electromagic method. To have built steel structure identification, inspection of steel structure material is an important content. Is the most ideal method in the structure of the main stress parts intercepted samples, by tensile test determine the strength of the corresponding indicators. But it will also damage structure, affecting its normal work, and the need for reinforcement. General surface hardness method is used to indirectly infer steel strength. In steel structure buildings, the steel members with welded connections between. Socalled weld nondestructive testing, in order to determine the welding structure or welding parts in forming can satisfy the use requirement, in the case of without widespread destructive test to test the weld technology. References: [1] Yao Na Zhang Tianshen, Wang Yuanqing, Shi Yongjiu. Beijing landscape of bridge steel structure inspection appraisal and strengthening design [J]. Engineering and seismic strengthening reform, 2020, (1) Chen Changjian [2]. Detection and reinforcement measures of steel structure [J]. Goods and quality, 2020, (S2) [3] Song Songyue Shao Huarong. Small engineering testing technology and management [J]. Henan science and technology, 2020, (8) YiSiPing [4]. Structure detection and reinforcement technology research and engineering practice [D]. Hefei university of technology, 2020 References: [1] Yao Na Zhang Tianshen, Wang Yuanqing, Shi Yongjiu. Beijing landscape of bridge steel structure inspection appraisal and strengthening design [J]. Engineering and seismic strengthening reform, 2020, (1) Chen Changjian [2]. Detection and reinforcement measures of steel structure [J]. Goods and quality, 2020, (S2) [3] Song Songyue Shao Huarong. Small engineering testing technology and management [J]. Henan science and technology, 2020, (8) YiSiPing [4]. Structure detection and reinforcement technology research and engineering practice [D]. Hefei university of technology, 2020 淺析建筑材料鋼結(jié)構(gòu)檢測(cè) 摘要: 文章簡要介紹了建筑鋼結(jié)構(gòu)材料特性與檢測(cè)方法,重點(diǎn)對(duì)鋼結(jié)構(gòu)檢測(cè)方法與質(zhì)量檢測(cè)方法闡述分析,以保證輕鋼結(jié)構(gòu)建筑質(zhì)量,充分 發(fā)揮鋼結(jié)構(gòu)材料性能。 Quality inspection。 Very similar to the bolt and the welding ball, but no pression test。材質(zhì)的單項(xiàng)指標(biāo)不能代表其全部特征,必 須依據(jù)常規(guī)試驗(yàn)的各項(xiàng)指標(biāo)進(jìn)行綜合評(píng)定。特別是銹蝕使截面減薄,承載能力下降,對(duì)結(jié)構(gòu)安全度影響是很大的。 涂層厚度測(cè)定一般用磁性測(cè)厚儀測(cè)定,國內(nèi)外均有產(chǎn)品。測(cè)量時(shí)關(guān)鍵要把握住鋼絲拉直,使測(cè)量數(shù)值準(zhǔn)確。同時(shí)為了確??缍榷它c(diǎn)的固定位置,兩端要有專人掌握端點(diǎn)固定位置并標(biāo)出端點(diǎn)與實(shí)際屋架端點(diǎn)的距離,以求出實(shí)際的測(cè)量撓度時(shí)的跨度值。鋼材材質(zhì)的力學(xué)試驗(yàn)和化學(xué)分析結(jié)果,都應(yīng)符合相應(yīng)規(guī)程的規(guī)定。另外,還有表面硬度法,就是利用硬度與強(qiáng)度之間的關(guān)系來獲得其強(qiáng)度值。 參考文獻(xiàn): [1]姚南,張?zhí)焐?,王元清,石永久。合肥工業(yè)大學(xué), 2020