【正文】 河南科技， 2020，（ 8） [4]艾思平。工程抗震與加固改造， 2020，（ 1） [2]陳昌劍。 在鋼結構建筑物中，鋼構件之間多采用焊接連接。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。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(tài)和動態(tài)兩種。 關于銹蝕和 損傷的等級劃分，執(zhí)行中可參照施工驗收規(guī)范和鋼結構設計規(guī)范規(guī)定條文進行。評定中還應收集下述資料作參考數(shù)據(jù)：鋼材生產(chǎn)的時間、鋼材供應的技術條件及其產(chǎn)品說明書。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。如角鋼、電線等，此時必須在兩端墊支點，以使鋼絲拉直。這兩個值確定之后才能確定屋架在荷載作用下的應力撓度值。因為 有無殘留涂層是結構銹蝕程度一個重要界限，也是永久性評估的重要界限。用磁性測厚儀時，要調好儀器，使其具有正常工作性能。即儀器顯示的厚度值。 目前，測定厚度一種是卡尺，一種是用測厚儀 測定厚度。鋼材材質的力學試驗和化學分析結果，都應符合相應規(guī)程的規(guī)定。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。 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(fā)展和實現(xiàn)專業(yè)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(shù)、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(jiān)控、涂料檢測等成套檢測技術。 the actual deflection value. Endpoints at the same time to ensure that the span of a fixed position, and both ends have the specialist master mark endpoint endpoint and fixed position and the actual roof endpoint of the distance, in order to the actual measurement of the deflection of span value. C,The quality of the steel structure inspection and evaluation Geometry size deviation, the nonlinear ponents, the structure is the poor quality of the welding and riveting, primer and paint quality is bad, is the main defect of steel structure in the manufacturing stage。 Quality evaluation Steel structure detection in individual ascension detection technology at the same time, pay attention to the development and implementation of integration, perfect the plete steel structure detection technology, including steel mechanical properties tests (tensile, bending, impact, hardness) fasteners, mechanical performance testing, steel structure (sliding resistance coefficient, axial force), steel metallurgical testing analysis, microstructure analysis, microhardness testing), steel, chemical position analysis, nondestructive testing, steel structure steel structure stress testing and monitoring, coating testing such as plete sets of testing technology. A, steel structure material From the use point of view, strength, plasticity, weldability and cold short destructive is building the basic performance of steel. Monomial index of the material does not represent all of its features, must be based on the prehensive evaluation indicators of routine test. Assessment should also collect the following data for reference data: in the steel production of time, the supply of steel technology condition and product specifications. Must find out the steel grades, technical indicators, ultimate strength, yield strength, tensile elongation, cold, repeated bending, impact toughness, and chemical position, etc. Material inspection including steel profiles (including welding hbeam, welded pipe), welding, bolts ball and connection fasteners testing, material, welding, bolts ball is the basic elements of steel structure engineering, its quality is directly related to the quality of the project. Profiles, it is material to grow milling width of specimen and then stretch the cold bending test, the physical properties testing。Analyses to detect the steel structure of building material Abstract: the article briefly introduces the construction steel structure material properti