外文翻譯---淺析建筑材料鋼結構檢測-建筑結構(留存版)

　　

【正文】 troduces the construction steel structure material properties and detection methods, focusing on the steel structure detection method and quality detection method in this paper, the analysis, to ensure the quality of light steel structure, steel structure material performance into full play. Key words: steel structure inspection。必須查明鋼材牌號、技術指標、極限強度、屈服強度、受拉時的延伸率、冷變、反復彎曲、沖擊韌性與化學成分等。用磁性測厚儀時，要調好儀器，使其具有正常工作性能。由于這些缺陷的存在和相互影響，使結構整體和局部受到不同程度的損壞。對已建鋼結構鑒定時，檢查鋼結構材質是很重要的測定內容。河南科技， 2020，（ 8） [4]艾思平。電測法就是利用電學量（如電流、電阻、電容等）的變化及其電學變化量與力學量之關系來測定其力學量（如應變及其應力）；其測定的范圍有靜態和動態兩種。如角鋼、電線等，此時必須在兩端墊支點，以使鋼絲拉直。即儀器顯示的厚度值。 關鍵詞： 鋼結構檢測；鋼結構材料；質量檢測；質量評定 鋼結構檢測在提升單項檢測技術的同時，注重發展和實現專業間的一體化，完善了成套的鋼結構檢測技術，包括鋼材力學性能檢測（拉伸、彎曲、沖擊、硬度）、鋼結構緊固件力學性能檢測（抗滑移系數、軸力）、鋼材金相檢測分析（顯微組織分析、顯微硬度測試）、鋼材化學成分分析、鋼結構無損檢測、鋼結構應力測試和監控、涂料檢測等成套檢測技術。 Welding ball is must be the diameter of the pipe welding according to the standard, then the tensile pressive tests are carried out。 (1)用測厚儀測定鋼結構截面厚度 鋼結構由于加工精確程度和斷面銹蝕的影響，鋼結構斷面厚度往往有些變化。 (3)鋼結構屋架撓度的測定 鋼屋架一般跨度都較大，如 2 2 30m 等，測量撓度較困難，必須用很大的力把鋼絲拉緊，而且鋼絲要求具有一定的抗拉強度。必須查明鋼材牌號、技術指標、極限強度、屈服強度、受拉時的延伸率、冷變、反復彎曲、沖擊韌性與化學成分等。所謂焊縫無損檢測，就是為了判定焊接結構或焊件在成型后能否滿足使用要求，在不進行大面積破壞性試驗的情況下對焊縫進行檢測的技 術。北京某景觀橋鋼結構的檢測鑒定與加固設計 [J]。 (2)鋼結構構件變形檢驗與評定 鋼結構的最后綜合評定是由承載能力、變形、銹蝕、損傷四個方面進行綜合考慮和分析，并以承載能力為主給出等級。同時，最好有竣工記錄，原鋼屋架在施工后有否反拱或撓度值。因此，測定鋼結構截面厚度是非常重要的一項任務。 Connection fasteners, mainly is the high strength bolts for us. High strength bolt mainly control the quality of the project including the minimum load detection, pretension the reinspection, torque, the reinspection torque coefficient and coefficient of slip resistance test. Steel material mechanical test and chemical analysis results, should ply with the provisions of the corresponding procedures. B, steel structure detection (a) steel structure thickness of section is measured by thickness gauge Steel structure because of the influence of the processing accuracy and section of corrosion, the steel structure of the section thickness is often some changes. Especially corrosion section thinning, bearing capacity decreased, the structure safety degree of influence is very big. Therefore, thickness of section steel structure determination is an important task. At present, the thickness measurement is a kind of caliper, one is thickness is measured by thickness gauge. Described below using ultrasonic thickness gauge Numbers of cross section thickness measuring method. The ultrasonic pulse reflection method. Ultrasonic spread from a homogeneous medium to another kind of homogeneous medium, boundary will occur on the surface of acoustic reflection, from the launch of the ultrasonic probe, after a delay block into the piece under test, ultrasonic wave arrived at interface, and be reflected back, be received through delay block and probe receives, measured between the transmitted pulse to the received pulse time, deduct the delay time, according to the relationship between sound velocity, time, distance, and the thickness of the piece being tested. That is, the thickness of the instrument display values. Such as ~ 100 instrument shows a value of mm, mm, the accuracy is mm. (2) the steel structure coating thickness measurement And in identificatio