蜂窩裂 的英文怎麼說
中文拼音 [fēngwōliè]
蜂窩裂
英文
hollow torning-
Based on the ultrasonic prompting, series of experiments about indt still had been done. the defect of metirical include aluminium honeycom seeper, aluminium tole microcrackle, aluminium honeycom board disglue, aluminium board microcrackle etc. the defect signal was distlled and analysed
在此基礎上,應用超聲激勵,對系列試件缺陷,包括鋁蜂窩積水、鋁金屬薄片微裂紋、板形鋁蜂窩脫粘、鋁板微裂紋,進行了紅外無損檢測實驗,對缺陷信號進行了處理和分析。According to author ' s practical experience accumulated in many years of water project construction, the author gives brief description to some common quality defects in cast - in - site concrete construction, such as honeycomb, ballast - surface, holes, reinforcement emerging, crack, surface unevenness, insufficient strength etc
根據在水利水電工程施工中多年積累的實踐經驗,簡要闡述了現澆混凝土施工中常見的一些質量缺陷,如混凝土出現蜂窩、麻面、孔洞、露筋、裂縫、表面不平整、強度偏低等。Experimental results indicated that the polypropylene fiber can improve the workability of concrete availably, and can increase the presentation quality of structures with the voids and pits decreased ; the cracks of beam are controlled effectively, the width and length of crack decreased, the dispersibility of crack in beam face improved, and the ductility of beam increased ; and the cracking load of reinforced concrete beam is increased, the amplify up to about 30 %, simultaneity the ultimate bear capacity increased
試驗研究表明,使用聚丙烯纖維后,能有效改善新拌混凝土的和易性,並能增強混凝土構件的外觀質量,減少構件表面蜂窩、麻面、氣孔、細小裂紋等;同時,在破壞試驗過程中發現梁的裂縫能得到有效控制,裂縫寬度減小,裂縫的發展高度降低,裂縫的條數增加,提高了梁截面的裂縫分散能力,增強了梁中混凝土的韌性;提高了鋼筋混凝土梁的開裂荷載,幅度可達30左右,增強了結構的延性,提高了結構的抗裂性能和屈服荷載。In our country, most of bridges were built in 1960s or 1970s, which were based on that time traffic discharge and development planning, so design criterion of these bridges were very lower. in addition, it was inevitable to bring about cracks > concrete rupture, steel rust ^ honeycomb and water proof layer failure, because some established bridges were built by poor construction and maintenance during the course of operating period. all above mentioned lead to durability and bearing capacity could n ' t gain to design standard
由於我國很多橋梁建於上個世紀六、七十年代,基於當時的車流量和各方面的發展規劃,橋梁設計等級普遍偏低;另外,某些既有橋梁由於施工質量差和運營期間維護不到位,不可避免地會產生裂縫、混凝土破損、鋼筋銹蝕、蜂窩及防水層失效等缺陷,從而導致耐久性及承載力達不到設計要求。分享友人